Merge pull request 'fix(SpigotCore): versions above 1.21.6 being kicked from arena' (#412) from SpigotCore/fix-newer-version-being-kicked-from-arena into main

Reviewed-on: #412
Reviewed-by: YoyoNow <4+yoyonow@noreply.localhost>

.idea/runConfigurations/Remote_JVM_Debugger.xml

@@ -0,0 +1,15 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Remote JVM Debugger" type="Remote">
+    <option name="USE_SOCKET_TRANSPORT" value="true" />
+    <option name="SERVER_MODE" value="false" />
+    <option name="SHMEM_ADDRESS" />
+    <option name="HOST" value="localhost" />
+    <option name="PORT" value="5005" />
+    <option name="AUTO_RESTART" value="false" />
+    <RunnerSettings RunnerId="Debug">
+      <option name="DEBUG_PORT" value="5005" />
+      <option name="LOCAL" value="false" />
+    </RunnerSettings>
+    <method v="2" />
+  </configuration>
+</component>

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/design/endstone/DesignEndStone.java

@@ -21,9 +21,7 @@ package de.steamwar.bausystem.features.design.endstone;
 
 import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.region.Region;
-import de.steamwar.entity.REntity;
-import de.steamwar.entity.REntityServer;
-import de.steamwar.entity.RFallingBlockEntity;
+import de.steamwar.entity.*;
 import net.md_5.bungee.api.ChatMessageType;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
@@ -59,15 +57,15 @@ public class DesignEndStone {
                 .filter(material -> material.getBlastResistance() > region.getGameModeConfig().Schematic.MaxDesignBlastResistance)
                 .collect(Collectors.toSet());
         calculateFromBottom = region.getGameModeConfig().Arena.NoFloor;
+    }
 
-        entityServer.setCallback((player, rEntity, entityAction) -> {
-            if (entityAction != REntityServer.EntityAction.ATTACK) return;
-            Location location = new Location(WORLD, rEntity.getX(), rEntity.getY(), rEntity.getZ());
-            Bukkit.getScheduler().runTaskLater(BauSystem.getInstance(), () -> {
-                location.getBlock().breakNaturally();
-                calc();
-            }, 1);
-        });
+    private void interact(Player player, RInteraction entity, REntityAction action) {
+        if (action != REntityAction.ATTACK) return;
+        Location location = new Location(WORLD, entity.getX(), entity.getY(), entity.getZ());
+        Bukkit.getScheduler().runTaskLater(BauSystem.getInstance(), () -> {
+            location.getBlock().breakNaturally();
+            calc();
+        }, 1);
     }
 
     public void calc() {
@@ -110,12 +108,15 @@ public class DesignEndStone {
                         Material material = WORLD.getBlockAt(cx, cy, cz).getType();
 
                         if (material != Material.WATER && material != Material.LAVA && limited.contains(material)) {
-                            Location location = new Location(WORLD, cx + 0.5, cy, cz + 0.5);
+                            Location location = new Location(WORLD, cx, cy, cz);
                             if (!locations.add(location)) break;
-                            RFallingBlockEntity entity = new RFallingBlockEntity(entityServer, location, Material.RED_STAINED_GLASS);
-                            entity.setNoGravity(true);
+                            RBlockDisplay entity = new RBlockDisplay(entityServer, location);
+                            entity.setBlock(Material.RED_STAINED_GLASS.createBlockData());
                             entity.setGlowing(true);
                             entities.add(entity);
+                            RInteraction interaction = new RInteraction(entityServer, location);
+                            interaction.setCallback(this::interact);
+                            entities.add(interaction);
                             break;
                         } else if (!material.isAir() && material != Material.WATER && material != Material.LAVA) {
                             break;

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/detonator/Detonator.java

@@ -26,8 +26,9 @@ import de.steamwar.bausystem.features.autostart.AutostartListener;
 import de.steamwar.bausystem.features.detonator.storage.DetonatorStorage;
 import de.steamwar.bausystem.features.detonator.storage.ItemStorage;
 import de.steamwar.core.SWPlayer;
+import de.steamwar.entity.RBlockDisplay;
 import de.steamwar.entity.REntityServer;
-import de.steamwar.entity.RFallingBlockEntity;
+import de.steamwar.entity.RInteraction;
 import lombok.Getter;
 import lombok.Setter;
 import lombok.experimental.UtilityClass;
@@ -58,10 +59,6 @@ public class Detonator {
         @Override
         public void onMount(SWPlayer player) {
             entities.addPlayer(player.getPlayer());
-            entities.setCallback((player1, entity, action) -> {
-                Vector vector = new Vector(entity.getX(), entity.getY(), entity.getZ());
-                DetonatorListener.addLocationToDetonator(vector.toLocation(player.getWorld()).getBlock().getLocation(), player1);
-            });
         }
 
         @Override
@@ -70,8 +67,6 @@ public class Detonator {
         }
     }
 
-    private static final Vector HALF = new Vector(0.5, 0, 0.5);
-
     public static boolean isDetonator(ItemStack itemStack) {
         return ItemStorage.isDetonator(itemStack);
     }
@@ -79,8 +74,14 @@ public class Detonator {
     public static void showDetonator(Player p, List<Location> locs) {
         DetonatorComponent detonatorComponent = SWPlayer.of(p).getComponentOrDefault(DetonatorComponent.class, DetonatorComponent::new);
         locs.forEach(location -> {
-            RFallingBlockEntity entity = new RFallingBlockEntity(detonatorComponent.entities, location.clone().add(HALF), Material.RED_STAINED_GLASS);
-            entity.setNoGravity(true);
+            RBlockDisplay blockDisplay = new RBlockDisplay(detonatorComponent.entities, location);
+            blockDisplay.setBlock(Material.RED_STAINED_GLASS.createBlockData());
+
+            RInteraction interaction = new RInteraction(detonatorComponent.entities, location);
+            interaction.setCallback((player, entity, action) -> {
+                Vector vector = new Vector(entity.getX(), entity.getY(), entity.getZ());
+                DetonatorListener.addLocationToDetonator(vector.toLocation(player.getWorld()).getBlock().getLocation(), player);
+            });
         });
     }
 

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/killchecker/KillcheckerVisualizer.java

@@ -24,9 +24,9 @@ import de.steamwar.bausystem.region.Point;
 import de.steamwar.bausystem.region.Region;
 import de.steamwar.bausystem.utils.bossbar.BauSystemBossbar;
 import de.steamwar.bausystem.utils.bossbar.BossBarService;
+import de.steamwar.entity.RBlockDisplay;
 import de.steamwar.entity.REntity;
 import de.steamwar.entity.REntityServer;
-import de.steamwar.entity.RFallingBlockEntity;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
 import org.bukkit.World;
@@ -290,8 +290,8 @@ public class KillcheckerVisualizer {
                 }
                 rEntities.get(point).die();
             }
-            RFallingBlockEntity entity = new RFallingBlockEntity(outlinePoints.contains(point) ? outline : inner, point.toLocation(WORLD, 0.5, 0, 0.5), MATERIALS[Math.min(count - 1, MATERIALS.length) - 1]);
-            entity.setNoGravity(true);
+            RBlockDisplay entity = new RBlockDisplay(outlinePoints.contains(point) ? outline : inner, point.toLocation(WORLD, 0.5, 0, 0.5));
+            entity.setBlock(MATERIALS[Math.min(count - 1, MATERIALS.length) - 1].createBlockData());
             rEntities.put(point, entity);
             if (outlinePoints.contains(point)) outlinePointsCache.add(point);
             killCount.put(point, count);

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/simulator/SimulatorCursor.java

@@ -80,7 +80,7 @@ public class SimulatorCursor implements Listener {
     }
 
     public SimulatorCursor() {
-        BiFunction<Player, Object, Object> function = (player, object) -> {
+        BiFunction<Player, ServerboundMovePlayerPacket, Object> function = (player, object) -> {
             calcCursor(player);
             return object;
         };

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/slaves/laufbau/BlockBoundingBox.java

@@ -21,7 +21,6 @@ package de.steamwar.bausystem.features.slaves.laufbau;
 
 import com.sk89q.worldedit.blocks.SkullBlock;
 import com.sk89q.worldedit.world.block.BaseBlock;
-import de.steamwar.bausystem.utils.NMSWrapper;
 import de.steamwar.inventory.SWItem;
 import lombok.Getter;
 import lombok.ToString;
@@ -99,7 +98,7 @@ public class BlockBoundingBox {
         // addPixel(Material.COBWEB.createBlockData(), 0, 0, 0, 0, 0, 0, createItem("LAUFBAU_BLOCK_COBWEB", Material.COBWEB));
         addPixel(Material.END_STONE.createBlockData(), 0, 0, 0, 16, 16, 16, null);
 
-        addPixel(NMSWrapper.impl.pathMaterial().createBlockData(), 0, 0, 0, 16, 15, 16, createItem("LAUFBAU_BLOCK_GRASS_PATH", NMSWrapper.impl.pathMaterial()));
+        addPixel(Material.DIRT_PATH.createBlockData(), 0, 0, 0, 16, 15, 16, createItem("LAUFBAU_BLOCK_GRASS_PATH", Material.DIRT_PATH));
         addPixel(Material.MUD.createBlockData(), 0, 0, 0, 16, 14, 16, createItem("LAUFBAU_BLOCK_SOUL_SAND", Material.SOUL_SAND));
 
         Cocoa cocoaNorth = (Cocoa) Material.COCOA.createBlockData();

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/techhider/TechHiderCommand.java

@@ -31,7 +31,6 @@ import de.steamwar.command.TypeMapper;
 import de.steamwar.core.CraftbukkitWrapper;
 import de.steamwar.linkage.Linked;
 import de.steamwar.linkage.LinkedInstance;
-import de.steamwar.techhider.TechHider;
 import net.md_5.bungee.api.ChatMessageType;
 import org.bukkit.Bukkit;
 import org.bukkit.command.CommandSender;
@@ -39,6 +38,7 @@ import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerQuitEvent;
+import de.steamwar.techhider.legacy.TechHider;
 
 import java.util.*;
 import java.util.stream.Collectors;

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/tpslimit/TPSSystem.java

@@ -19,13 +19,13 @@
 
 package de.steamwar.bausystem.features.tpslimit;
 
+import com.destroystokyo.paper.event.server.ServerTickEndEvent;
 import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.Permission;
 import de.steamwar.bausystem.SWUtils;
 import de.steamwar.bausystem.linkage.BauGuiItem;
 import de.steamwar.bausystem.region.Region;
 import de.steamwar.bausystem.utils.ScoreboardElement;
-import de.steamwar.bausystem.utils.TickEndEvent;
 import de.steamwar.bausystem.utils.TickManager;
 import de.steamwar.bausystem.utils.bossbar.BauSystemBossbar;
 import de.steamwar.bausystem.utils.bossbar.BossBarService;
@@ -72,7 +72,7 @@ public class TPSSystem implements Listener {
     }
 
     @EventHandler
-    public void onTickEnd(TickEndEvent event) {
+    public void onTickEnd(ServerTickEndEvent event) {
         bossbar();
     }
 

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/tracer/Trace.java

@@ -25,6 +25,7 @@ import de.steamwar.bausystem.features.tracer.rendering.TraceEntity;
 import de.steamwar.bausystem.features.tracer.rendering.ViewFlag;
 import de.steamwar.bausystem.region.Region;
 import de.steamwar.entity.REntity;
+import de.steamwar.entity.REntityAction;
 import de.steamwar.entity.REntityServer;
 import lombok.Getter;
 import lombok.Setter;
@@ -143,14 +144,6 @@ public class Trace {
         } else {
             entityServer = new REntityServer();
             entityServer.addPlayer(player);
-            entityServer.setCallback((p, rEntity, entityAction) -> {
-                if (entityAction != REntityServer.EntityAction.INTERACT) {
-                    return;
-                }
-                if (rEntity instanceof TraceEntity) {
-                    ((TraceEntity) rEntity).printIntoChat(p);
-                }
-            });
             entityServerMap.put(player, entityServer);
         }
         render(getRecords(), entityServer, playerTraceShowData);
@@ -167,14 +160,6 @@ public class Trace {
         REntityServer entityServer = entityServerMap.computeIfAbsent(player, k -> {
             REntityServer newEntityServer = new REntityServer();
             newEntityServer.addPlayer(k);
-            newEntityServer.setCallback((p, rEntity, entityAction) -> {
-                if (entityAction != REntityServer.EntityAction.INTERACT) {
-                    return;
-                }
-                if (rEntity instanceof TraceEntity) {
-                    ((TraceEntity) rEntity).printIntoChat(p);
-                }
-            });
             return newEntityServer;
         });
 

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/tracer/rendering/TraceEntity.java

@@ -24,13 +24,18 @@ import de.steamwar.bausystem.configplayer.Config;
 import de.steamwar.bausystem.features.tracer.TNTPoint;
 import de.steamwar.bausystem.features.tracer.Trace;
 import de.steamwar.bausystem.features.tracer.TraceManager;
+import de.steamwar.entity.RBlockDisplay;
+import de.steamwar.entity.REntityAction;
 import de.steamwar.entity.REntityServer;
-import de.steamwar.entity.RFallingBlockEntity;
+import de.steamwar.entity.RInteraction;
 import lombok.Getter;
 import net.md_5.bungee.api.chat.ClickEvent;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.entity.Player;
+import org.bukkit.util.Transformation;
+import org.joml.Quaternionf;
+import org.joml.Vector3f;
 import yapion.hierarchy.types.YAPIONValue;
 
 import java.util.List;
@@ -41,7 +46,16 @@ import static de.steamwar.bausystem.features.util.TNTClickListener.TNT_CLICK_DET
 /**
  * Wrapper for the rendering of a record bundle
  */
-public class TraceEntity extends RFallingBlockEntity {
+public class TraceEntity extends RBlockDisplay {
+
+    private static final float TNT_VISUAL_SCALE = 0.98F;
+    private static final float TNT_VISUAL_OFFSET = -TNT_VISUAL_SCALE / 2.0F;
+    private static final Transformation TNT_VISUAL_TRANSFORM = new Transformation(
+            new Vector3f(TNT_VISUAL_OFFSET, 0.0F, TNT_VISUAL_OFFSET),
+            new Quaternionf(0, 0, 0, 1),
+            new Vector3f(TNT_VISUAL_SCALE, TNT_VISUAL_SCALE, TNT_VISUAL_SCALE),
+            new Quaternionf(0, 0, 0, 1)
+    );
 
     /**
      * The records represented by this REntity
@@ -55,13 +69,31 @@ public class TraceEntity extends RFallingBlockEntity {
     private final String uniqueTntIdsString;
 
     private final Trace trace;
+    private final RInteraction hitbox;
 
     public TraceEntity(REntityServer server, Location location, boolean isExplosion, List<TNTPoint> records, Trace trace) {
-        super(server, location, isExplosion ? Material.RED_STAINED_GLASS : Material.TNT);
+        super(server, location);
+        Material material = isExplosion ? Material.RED_STAINED_GLASS : Material.TNT;
         this.records = records;
         this.trace = trace;
         uniqueTntIdsString = records.stream().map(TNTPoint::getTntId).distinct().map(Object::toString).collect(Collectors.joining(" "));
-        setNoGravity(true);
+        hitbox = new RInteraction(server, location);
+        hitbox.setInteractionHeight(TNT_VISUAL_SCALE);
+        hitbox.setInteractionWidth(TNT_VISUAL_SCALE);
+        hitbox.setCallback((player, action) -> {
+            if (action == REntityAction.INTERACT) {
+                printIntoChat(player);
+            }
+        });
+        setTransform(TNT_VISUAL_TRANSFORM);
+        setBlock(material.createBlockData());
+
+    }
+
+    @Override
+    public void die() {
+        hitbox.die();
+        super.die();
     }
 
     /**

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/tracer/rendering/ViewFlag.java

@@ -20,8 +20,8 @@
 package de.steamwar.bausystem.features.tracer.rendering;
 
 import de.steamwar.bausystem.features.tracer.TNTPoint;
+import de.steamwar.entity.RBlockDisplay;
 import de.steamwar.entity.REntityServer;
-import de.steamwar.entity.RFallingBlockEntity;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.util.Vector;
@@ -129,8 +129,8 @@ public abstract class ViewFlag {
 
                 Location yLocation = previous.getLocation().clone().add(0, delta.getY(), 0);
                 if (yLocation.distanceSquared(representative.getLocation()) >= 1.0 / 256.0 && yLocation.distanceSquared(previous.getLocation()) >= 1.0 / 256.0) {
-                    RFallingBlockEntity y = new RFallingBlockEntity(server, yLocation, Material.WHITE_STAINED_GLASS);
-                    y.setNoGravity(true);
+                    RBlockDisplay y = new RBlockDisplay(server, yLocation);
+                    y.setBlock(Material.WHITE_STAINED_GLASS.createBlockData());
                 }
 
                 Location secoundLocation;
@@ -141,8 +141,8 @@ public abstract class ViewFlag {
                 }
 
                 if (secoundLocation.distanceSquared(representative.getLocation()) >= 1.0 / 256.0 && secoundLocation.distanceSquared(previous.getLocation()) >= 1.0 / 256.0) {
-                    RFallingBlockEntity second = new RFallingBlockEntity(server, secoundLocation, Material.WHITE_STAINED_GLASS);
-                    second.setNoGravity(true);
+                    RBlockDisplay second = new RBlockDisplay(server, secoundLocation);
+                    second.setBlock(Material.WHITE_STAINED_GLASS.createBlockData());
                 }
             }
         }

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/util/NoClipCommand.java

@@ -21,17 +21,22 @@ package de.steamwar.bausystem.features.util;
 
 import com.comphenix.tinyprotocol.TinyProtocol;
 import com.mojang.authlib.GameProfile;
+import de.steamwar.Reflection;
 import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.features.tpslimit.TPSUtils;
 import de.steamwar.bausystem.utils.BauMemberUpdateEvent;
-import de.steamwar.bausystem.utils.NMSWrapper;
 import de.steamwar.command.SWCommand;
 import de.steamwar.core.ProtocolWrapper;
 import de.steamwar.core.SWPlayer;
 import de.steamwar.linkage.Linked;
 import net.minecraft.network.protocol.game.*;
+import net.minecraft.server.level.ServerPlayerGameMode;
+import net.minecraft.world.entity.player.Abilities;
+import net.minecraft.world.level.GameType;
 import org.bukkit.Bukkit;
 import org.bukkit.GameMode;
+import org.bukkit.craftbukkit.entity.CraftPlayer;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
@@ -57,11 +62,11 @@ public class NoClipCommand extends SWCommand implements Listener {
     public NoClipCommand() {
         super("noclip", "nc");
 
-        BiFunction<Player, Object, Object> first = (player, o) -> {
+        BiFunction<Player, ServerboundMovePlayerPacket, Object> first = (player, o) -> {
             NoClipData noClipData = SWPlayer.of(player).getComponent(NoClipData.class).orElse(null);
             if (noClipData == null) return o;
             if (noClipData.lastTick == TPSUtils.currentTick.get()) return o;
-            NMSWrapper.impl.setInternalGameMode(player, GameMode.SPECTATOR);
+            setInternalGameMode(player, GameMode.SPECTATOR);
             noClipData.lastTick = TPSUtils.currentTick.get();
             return o;
         };
@@ -71,7 +76,7 @@ public class NoClipCommand extends SWCommand implements Listener {
         BiFunction<Player, Object, Object> second = (player, o) -> {
             NoClipData noClipData = SWPlayer.of(player).getComponent(NoClipData.class).orElse(null);
             if (noClipData == null) return o;
-            NMSWrapper.impl.setInternalGameMode(player, GameMode.CREATIVE);
+            setInternalGameMode(player, GameMode.CREATIVE);
             noClipData.lastTick = TPSUtils.currentTick.get();
             return o;
         };
@@ -79,15 +84,31 @@ public class NoClipCommand extends SWCommand implements Listener {
         TinyProtocol.instance.addFilter(ServerboundPlayerActionPacket.class, second);
         TinyProtocol.instance.addFilter(ServerboundContainerClickPacket.class, second);
 
-        BiFunction<Player, Object, Object> third = (player, o) -> {
+        BiFunction<Player, ServerboundSetCreativeModeSlotPacket, Object> third = (player, o) -> {
             if (SWPlayer.of(player).hasComponent(NoClipData.class)) {
-                NMSWrapper.impl.setSlotToItemStack(player, o);
+                int index = o.slotNum();
+                if (index >= 36 && index <= 44) {
+                    index -= 36;
+                } else if (index > 44) {
+                    index -= 5;
+                } else if (index <= 8) {
+                    index = index - 8 + 36;
+                }
+                player.getInventory().setItem(index, CraftItemStack.asBukkitCopy(o.itemStack()));
+                if (index < 9) player.getInventory().setHeldItemSlot(index);
+                player.updateInventory();
             }
             return o;
         };
         TinyProtocol.instance.addFilter(ServerboundSetCreativeModeSlotPacket.class, third);
     }
 
+    private static final Reflection.Field<GameType> playerGameMode = Reflection.getField(ServerPlayerGameMode.class, GameType.class, 0);
+
+    private void setInternalGameMode(Player player, GameMode gameMode) {
+        playerGameMode.set(((CraftPlayer) player).getHandle().gameMode, GameType.byId(gameMode.getValue()));
+    }
+
     @Register(help = true)
     public void genericCommand(@Validator Player player) {
         SWPlayer swPlayer = SWPlayer.of(player);
@@ -95,7 +116,9 @@ public class NoClipCommand extends SWCommand implements Listener {
             swPlayer.removeComponent(NoClipData.class);
         } else {
             player.setGameMode(GameMode.SPECTATOR);
-            NMSWrapper.impl.setPlayerBuildAbilities(player);
+            Abilities abilities = (((CraftPlayer) player).getHandle()).getAbilities();
+            abilities.mayBuild = true;
+            abilities.mayfly = true;
 
             swPlayer.setComponent(new NoClipData());
             BauSystem.MESSAGE.send("OTHER_NOCLIP_SLOT_INFO", player);

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/world/BauMemberUpdate.java

@@ -28,6 +28,7 @@ import de.steamwar.bausystem.utils.bossbar.BossBarService;
 import de.steamwar.linkage.Linked;
 import de.steamwar.network.packets.PacketHandler;
 import de.steamwar.network.packets.server.BaumemberUpdatePacket;
+import io.papermc.paper.event.player.PlayerPickBlockEvent;
 import org.bukkit.Bukkit;
 import org.bukkit.boss.BarColor;
 import org.bukkit.boss.BarStyle;
@@ -35,6 +36,8 @@ import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.entity.PlayerDeathEvent;
+import org.bukkit.event.inventory.ClickType;
+import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.player.PlayerItemConsumeEvent;
 import org.bukkit.event.player.PlayerJoinEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
@@ -127,4 +130,11 @@ public class BauMemberUpdate extends PacketHandler implements Listener {
             }
         }, 1);
     }
+
+    @EventHandler
+    public void onPlayerClick(PlayerPickBlockEvent event) {
+        if(SPECTATORS.contains(event.getPlayer())) {
+            event.setCancelled(true);
+        }
+    }
 }

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/world/InventoryListener.java

@@ -19,8 +19,9 @@
 
 package de.steamwar.bausystem.features.world;
 
-import de.steamwar.bausystem.utils.NMSWrapper;
 import de.steamwar.linkage.Linked;
+import io.papermc.paper.datacomponent.DataComponentTypes;
+import io.papermc.paper.datacomponent.item.ItemContainerContents;
 import org.bukkit.attribute.Attribute;
 import org.bukkit.enchantments.Enchantment;
 import org.bukkit.entity.Player;
@@ -32,6 +33,8 @@ import org.bukkit.event.player.PlayerJoinEvent;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 
+import java.util.List;
+
 @Linked
 public class InventoryListener implements Listener {
 
@@ -57,7 +60,7 @@ public class InventoryListener implements Listener {
             }
             stack.setItemMeta(meta);
         }
-        if (NMSWrapper.impl.checkItemStack(stack)) {
+        if (checkItemStack(stack)) {
             e.setCurrentItem(null);
             e.setCancelled(true);
             return;
@@ -73,7 +76,7 @@ public class InventoryListener implements Listener {
         for (int i = 0; i < content.length; i++) {
             if (content[i] == null) continue;
             int finalI = i;
-            if (NMSWrapper.impl.checkItemStack(content[finalI])) {
+            if (checkItemStack(content[finalI])) {
                 p.getInventory().setItem(i, null);
             }
         }
@@ -82,11 +85,44 @@ public class InventoryListener implements Listener {
     @EventHandler(ignoreCancelled = true)
     public void onBlockPlace(BlockPlaceEvent event) {
         Player p = event.getPlayer();
-        if (NMSWrapper.impl.checkItemStack(event.getItemInHand())) {
+        if (checkItemStack(event.getItemInHand())) {
             event.setCancelled(true);
             event.setBuild(false);
             p.getInventory().setItemInMainHand(null);
             p.getInventory().setItemInOffHand(null);
         }
     }
+
+    private static final int threshold = 2048;
+
+    private boolean checkItemStack(ItemStack item) {
+        ItemContainerContents data = item.getData(DataComponentTypes.CONTAINER);
+        if (data == null) {
+            return false;
+        }
+
+        return drillDown(data.contents(), 0, 0) > threshold;
+    }
+
+    private int drillDown(List<ItemStack> items, int layer, int start) {
+        if (layer > 2) return start + threshold;
+        int invalid = start;
+        for (int i = start; i < items.size(); i++) {
+            ItemStack item = items.get(i);
+            if (item.isEmpty()) continue;
+
+            invalid += item.getAmount();
+
+            ItemContainerContents data = item.getData(DataComponentTypes.CONTAINER);
+            if (data == null) {
+                continue;
+            }
+
+            List<ItemStack> subItems = data.contents();
+            if (subItems.size() > 1) {
+                invalid = drillDown(subItems, layer + 1, invalid);
+            }
+        }
+        return invalid;
+    }
 }

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/world/NoCreativeKnockback.java

@@ -20,18 +20,24 @@
 package de.steamwar.bausystem.features.world;
 
 import com.comphenix.tinyprotocol.TinyProtocol;
-import de.steamwar.bausystem.utils.NMSWrapper;
 import de.steamwar.linkage.Linked;
 import net.minecraft.network.protocol.game.ClientboundExplodePacket;
 import org.bukkit.GameMode;
 
+import java.util.Optional;
+
 @Linked
 public class NoCreativeKnockback {
 
     public NoCreativeKnockback() {
         TinyProtocol.instance.addFilter(ClientboundExplodePacket.class, (player, o) -> {
             if (player.getGameMode() != GameMode.CREATIVE) return o;
-            return NMSWrapper.impl.resetExplosionKnockback(o);
+            return new ClientboundExplodePacket(
+                    o.center(),
+                    Optional.empty(),
+                    o.explosionParticle(),
+                    o.explosionSound()
+            );
         });
     }
 }

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/world/SignEdit.java

@@ -101,7 +101,7 @@ public class SignEdit implements Listener {
     }
 
     {
-        TinyProtocol.instance.addTypedFilter(ServerboundSignUpdatePacket.class, (player, o) -> {
+        TinyProtocol.instance.addFilter(ServerboundSignUpdatePacket.class, (player, o) -> {
             Bukkit.getScheduler().runTask(BauSystem.getInstance(), () -> {
                 ServerLevel serverLevel = ((CraftWorld) player.getWorld()).getHandle();
                 Block signLoc = CraftBlock.at(serverLevel, o.getPos());

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/world/SpectatorListener.java

@@ -25,7 +25,6 @@ import de.steamwar.bausystem.config.BauServer;
 import de.steamwar.bausystem.utils.BauMemberUpdateEvent;
 import de.steamwar.linkage.Linked;
 import de.steamwar.sql.BauweltMember;
-import de.steamwar.techhider.TechHider;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.Material;
@@ -40,6 +39,7 @@ import org.bukkit.event.block.BlockPlaceEvent;
 import org.bukkit.event.entity.EntityPickupItemEvent;
 import org.bukkit.event.player.*;
 import org.bukkit.util.Vector;
+import de.steamwar.techhider.legacy.TechHider;
 
 import java.util.HashSet;
 import java.util.Set;

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/xray/XrayCommand.java

@@ -28,7 +28,6 @@ import de.steamwar.command.SWCommand;
 import de.steamwar.core.CraftbukkitWrapper;
 import de.steamwar.linkage.Linked;
 import de.steamwar.linkage.LinkedInstance;
-import de.steamwar.techhider.TechHider;
 import net.md_5.bungee.api.ChatMessageType;
 import net.minecraft.network.protocol.game.ServerboundMovePlayerPacket;
 import net.minecraft.server.level.ServerPlayer;
@@ -41,6 +40,7 @@ import org.bukkit.event.Listener;
 import org.bukkit.event.block.Action;
 import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
+import de.steamwar.techhider.legacy.TechHider;
 
 import java.util.*;
 import java.util.function.BiFunction;
@@ -115,8 +115,8 @@ public class XrayCommand extends SWCommand implements Listener, ScoreboardElemen
             return packet;
         };
 
-        TinyProtocol.instance.addTypedFilter(ServerboundMovePlayerPacket.Pos.class, positionSetter);
-        TinyProtocol.instance.addTypedFilter(ServerboundMovePlayerPacket.PosRot.class, positionSetter);
+        TinyProtocol.instance.addFilter(ServerboundMovePlayerPacket.Pos.class, positionSetter);
+        TinyProtocol.instance.addFilter(ServerboundMovePlayerPacket.PosRot.class, positionSetter);
     }
 
     @EventHandler

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/utils/NMSWrapper.java

@@ -1,117 +0,0 @@
-/*
- *   This file is a part of the SteamWar software.
- *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
- *
- *   This program is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU Affero General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *   GNU Affero General Public License for more details.
- *
- *   You should have received a copy of the GNU Affero General Public License
- *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.bausystem.utils;
-
-import de.steamwar.Reflection;
-import io.papermc.paper.datacomponent.DataComponentTypes;
-import io.papermc.paper.datacomponent.item.ItemContainerContents;
-import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
-import net.minecraft.network.protocol.game.ClientboundExplodePacket;
-import net.minecraft.server.level.ServerPlayerGameMode;
-import net.minecraft.world.entity.player.Abilities;
-import net.minecraft.world.level.GameType;
-import org.bukkit.GameMode;
-import org.bukkit.Material;
-import org.bukkit.craftbukkit.entity.CraftPlayer;
-import org.bukkit.craftbukkit.inventory.CraftItemStack;
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.ItemStack;
-
-import java.util.List;
-import java.util.Optional;
-
-public class NMSWrapper {
-    public static final NMSWrapper impl = new NMSWrapper();
-
-    private static final Reflection.Field<GameType> playerGameMode = Reflection.getField(ServerPlayerGameMode.class, GameType.class, 0);
-
-    public void setInternalGameMode(Player player, GameMode gameMode) {
-        playerGameMode.set(((CraftPlayer) player).getHandle().gameMode, GameType.byId(gameMode.getValue()));
-    }
-
-    public void setSlotToItemStack(Player player, Object o) {
-        ClientboundContainerSetSlotPacket packetPlayInSetCreativeSlot = (ClientboundContainerSetSlotPacket) o;
-        int index = packetPlayInSetCreativeSlot.getSlot();
-        if (index >= 36 && index <= 44) {
-            index -= 36;
-        } else if (index > 44) {
-            index -= 5;
-        } else if (index <= 8) {
-            index = index - 8 + 36;
-        }
-        player.getInventory().setItem(index, CraftItemStack.asBukkitCopy(packetPlayInSetCreativeSlot.getItem()));
-        if (index < 9) player.getInventory().setHeldItemSlot(index);
-        player.updateInventory();
-    }
-
-    public void setPlayerBuildAbilities(Player player) {
-        Abilities abilities = (((CraftPlayer) player).getHandle()).getAbilities();
-        abilities.mayBuild = true;
-        abilities.mayfly = true;
-    }
-
-    public Material pathMaterial() {
-        return Material.DIRT_PATH;
-    }
-
-    private static final int threshold = 2048;
-
-    public boolean checkItemStack(ItemStack item) {
-        ItemContainerContents data = item.getData(DataComponentTypes.CONTAINER);
-        if (data == null) {
-            return false;
-        }
-
-        return drillDown(data.contents(), 0, 0) > threshold;
-    }
-
-    private int drillDown(List<ItemStack> items, int layer, int start) {
-        if (layer > 2) return start + threshold;
-        int invalid = start;
-        for (int i = start; i < items.size(); i++) {
-            ItemStack item = items.get(i);
-            if (item.isEmpty()) continue;
-
-            invalid += item.getAmount();
-
-            ItemContainerContents data = item.getData(DataComponentTypes.CONTAINER);
-            if (data == null) {
-                continue;
-            }
-
-            List<ItemStack> subItems = data.contents();
-            if (subItems.size() > 1) {
-                invalid = drillDown(subItems, layer + 1, invalid);
-            }
-        }
-        return invalid;
-    }
-
-    public Object resetExplosionKnockback(Object packet) {
-        ClientboundExplodePacket explosion = (ClientboundExplodePacket) packet;
-
-        return new ClientboundExplodePacket(
-                explosion.center(),
-                Optional.empty(),
-                explosion.explosionParticle(),
-                explosion.explosionSound()
-        );
-    }
-}

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/utils/TickManager.java

@@ -42,7 +42,7 @@ public class TickManager implements Listener {
         TinyProtocol.instance.addFilter(ClientboundTickingStatePacket.class, this::blockPacket);
     }
 
-    private Object blockPacket(Player player, Object packet) {
+    private Object blockPacket(Player player, ClientboundTickingStatePacket packet) {
         if (blockTpsPacket) {
             return new ClientboundTickingStatePacket(20, manager.isFrozen());
         } else {

CommonCore/SQL/src/de/steamwar/sql/GameModeConfig.java

@@ -411,7 +411,7 @@ public final class GameModeConfig<M, W> {
     }
 
     @ToString
-    public static final class ArenaConfig {
+    public static final class ArenaConfig<M, W> {
 
         public final boolean loaded;
 
@@ -461,11 +461,11 @@ public final class GameModeConfig<M, W> {
         public final boolean DisableSnowMelt;
 
         /**
-         * Disable ice forming
+         * Disable the forming of certain blocks
          *
-         * @implSpec {@code false} by default
+         * @implSpec {@code empty} by default
          */
-        public final boolean DisableIceForm;
+        public final Set<M> DisabledBlockForms;
 
         /**
          * Allow leaving the arena area as spectator
@@ -488,7 +488,7 @@ public final class GameModeConfig<M, W> {
          */
         public final boolean NoFloor;
 
-        private ArenaConfig(YMLWrapper loader, SchematicConfig.SizeConfig Size, List<Integer> EnterStages) {
+        private ArenaConfig(YMLWrapper<M, W> loader, SchematicConfig.SizeConfig Size, List<Integer> EnterStages) {
             loaded = loader.canLoad();
             WaterDepth = loader.getInt("WaterDepth", 0);
             WaterDamage = loader.getBoolean("WaterDamage", true);
@@ -497,7 +497,11 @@ public final class GameModeConfig<M, W> {
             BorderFromSchematic = loader.getInt("BorderFromSchematic", 21);
             GroundWalkable = loader.getBoolean("GroundWalkable", true);
             DisableSnowMelt = loader.getBoolean("DisableSnowMelt", false);
-            DisableIceForm = loader.getBoolean("DisableIceForm", false);
+            Set<M> disabledBlockForms = new HashSet<>(loader.getMaterialList("DisabledBlockForms"));
+            if (loader.getBoolean("DisableIceForm", false)) {
+                disabledBlockForms.add(loader.materialMapper.apply("ICE"));
+            }
+            DisabledBlockForms = Collections.unmodifiableSet(disabledBlockForms);
             Leaveable = loader.getBoolean("Leaveable", false);
             AllowMissiles = loader.getBoolean("AllowMissiles", !EnterStages.isEmpty());
             NoFloor = loader.getBoolean("NoFloor", false);

CommonCore/SQL/src/de/steamwar/sql/SchematicNode.kt

@@ -434,7 +434,7 @@ class SchematicNode(id: EntityID<Int>) : IntEntity(id) {
     private var nodeItem by SchematicNodeTable.item
     var item: String
         get() = nodeItem.ifEmpty {
-            if (isDir()) "CHEST" else "CAULDRON_ITEM"
+            if (isDir()) "CHEST" else "CAULDRON"
         }
         set(value) = useDb {
             nodeItem = value

CommonCore/SQL/src/de/steamwar/sql/SteamwarUser.kt

@@ -25,6 +25,7 @@ import org.jetbrains.exposed.v1.core.dao.id.EntityID
 import org.jetbrains.exposed.v1.core.dao.id.IntIdTable
 import org.jetbrains.exposed.v1.core.eq
 import org.jetbrains.exposed.v1.core.inList
+import org.jetbrains.exposed.v1.core.neq
 import org.jetbrains.exposed.v1.dao.IntEntity
 import org.jetbrains.exposed.v1.dao.IntEntityClass
 import org.jetbrains.exposed.v1.jdbc.insert
@@ -136,6 +137,12 @@ class SteamwarUser(id: EntityID<Int>) : IntEntity(id) {
                     .select(SteamwarUserTable.fields).where { UserPermTable.perm eq perm }.map { wrapRow(it) }
             }
 
+        @JvmStatic
+        fun getUsersWithDiscordId() =
+            useDb {
+                find { SteamwarUserTable.discordId neq null }.toList()
+            }
+
         @JvmStatic
         fun getServerTeam() =
             useDb {
@@ -175,6 +182,9 @@ class SteamwarUser(id: EntityID<Int>) : IntEntity(id) {
             leaderInternal = false
         }
 
+    fun hasTeam() =
+        team != 0
+
     private var leaderInternal by SteamwarUserTable.leader
     var leader: Boolean
         get() = leaderInternal

CommonCore/SQL/src/de/steamwar/sql/UserPerm.kt

@@ -63,11 +63,11 @@ enum class UserPerm {
             PREFIX_NONE to emptyPrefix,
             PREFIX_YOUTUBER to Prefix("§x§8§A§2§B§E§5", "CC"), // 8A2BE5
             PREFIX_GUIDE to Prefix("§x§e§7§6§2§e§d", "Guide"), // E762ED
-            PREFIX_SUPPORTER to Prefix("§x§6§0§9§5§F§B", "Sup"), // 6095FB
-            PREFIX_MODERATOR to Prefix("§x§F§F§A§2§5§C", "Mod"), // FFA25C
-            PREFIX_BUILDER to Prefix("§x§6§0§F§F§6§A", "Arch"), // 60FF6A
-            PREFIX_DEVELOPER to Prefix("§x§0§B§B§C§B§3", "Dev"), // 0BBCB3
-            PREFIX_ADMIN to Prefix("§x§F§F§2§B§2§4", "Admin"), // FF2B24
+            PREFIX_SUPPORTER to Prefix("§x§6§0§9§5§F§B", "Sup", true), // 6095FB
+            PREFIX_MODERATOR to Prefix("§x§F§F§A§2§5§C", "Mod", true), // FFA25C
+            PREFIX_BUILDER to Prefix("§x§6§0§F§F§6§A", "Arch", true), // 60FF6A
+            PREFIX_DEVELOPER to Prefix("§x§0§B§B§C§B§3", "Dev", true), // 0BBCB3
+            PREFIX_ADMIN to Prefix("§x§F§F§2§B§2§4", "Admin", true), // FF2B24
         )
 
         @JvmStatic
@@ -94,5 +94,5 @@ enum class UserPerm {
             }
     }
 
-    data class Prefix(val colorCode: String, val chatPrefix: String)
+    data class Prefix(val colorCode: String, val chatPrefix: String, val teamPrefix: Boolean = false)
 }

FightSystem/FightSystem_Core/build.gradle.kts

@@ -37,4 +37,5 @@ dependencies {
     compileOnly(libs.authlib)
     compileOnly(libs.nms)
     compileOnly(libs.fawe)
+    compileOnly(libs.datafixer)
 }

FightSystem/FightSystem_Core/src/config.yml

@@ -48,6 +48,16 @@ Arena:
   GroundWalkable: true # defaults to true if missing
   # Disable snow and ice melting
   DisableSnowMelt: false # defaults to false if missing
+  # Disabled blocks from forming
+  DisabledBlockForms:
+    # For Cobble Generators
+    # - COBBLESTONE
+    # - BASALT
+    # - STONE
+    # - OBSIDIAN
+  # Disable ice specifically from forming
+  # Deprecated, add ICE to DisabledBlockForms list instead
+  DisableIceForm: false
   # Allow leaving the arena area as spectator
   Leaveable: false # defaults to false if missing
   # Allow missiles to fly to the enemy and not stop at the schem border.

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/FightSystem.java

@@ -41,6 +41,9 @@ import de.steamwar.sql.SchematicNode;
 import lombok.Getter;
 import org.bukkit.Bukkit;
 import org.bukkit.GameRule;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerPickupArrowEvent;
 import org.bukkit.plugin.java.JavaPlugin;
 
 public class FightSystem extends JavaPlugin {
@@ -95,13 +98,20 @@ public class FightSystem extends JavaPlugin {
             getMessage().broadcast("PISTON_PUSHED_OUTSIDE");
             shutdown();
         });
-        new StateDependentListener(ArenaMode.All, FightState.All, BountifulWrapper.impl.newDenyArrowPickupListener());
+        new StateDependentListener(ArenaMode.All, FightState.All, new Listener() {
+            @EventHandler
+            public void onArrowPickup(PlayerPickupArrowEvent e) {
+                if (Fight.fighting(e.getPlayer())) e.setCancelled(true);
+            }
+        });
         new OneShotStateDependent(ArenaMode.All, FightState.PreSchemSetup, () -> Fight.playSound(SWSound.BLOCK_NOTE_PLING.getSound(), 100.0f, 2.0f));
         new OneShotStateDependent(ArenaMode.Test, FightState.All, WorldEditRendererCUIEditor::new);
         Config.world.setGameRule(GameRule.REDUCED_DEBUG_INFO, ArenaMode.AntiTest.contains(Config.mode));
 
-        techHider = new TechHiderWrapper();
         hullHider = new HullHider();
+        techHider = new TechHiderWrapper(hullHider);
+        FightSystem.getHullHider().getHullMap().values().forEach(hull -> hull.fill(true));
+
 
         FileSource.startReplay();
 
@@ -120,7 +130,7 @@ public class FightSystem extends JavaPlugin {
             Fight.getUnrotated().setSchem(SchematicNode.getSchematicNode(Config.PrepareSchemID));
         }
 
-        CraftbukkitWrapper.impl.setupGamerule();
+        Config.world.setGameRule(GameRule.LOCATOR_BAR, false);
     }
 
     @Override

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/commands/TPSWarpCommand.java

@@ -21,8 +21,8 @@ import de.steamwar.fightsystem.ArenaMode;
 import de.steamwar.fightsystem.FightSystem;
 import de.steamwar.fightsystem.states.FightState;
 import de.steamwar.fightsystem.states.StateDependentCommand;
-import de.steamwar.fightsystem.utils.TpsWarper;
 import de.steamwar.linkage.Linked;
+import net.minecraft.server.MinecraftServer;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
@@ -45,8 +45,7 @@ public class TPSWarpCommand implements CommandExecutor {
             return false;
         }
 
-        TpsWarper warper = TpsWarper.impl;
-        warper.warp(tps);
+        MinecraftServer.getServer().tickRateManager().setTickRate(tps);
 
         FightSystem.getMessage().broadcastActionbar("TPSWARP_SET", tps);
         return false;

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/fight/FightSchematic.java

@@ -158,6 +158,8 @@ public class FightSchematic extends StateDependent {
         FreezeWorld freezer = new FreezeWorld();
 
         team.teleportToSpawn();
+        // TODO: Implement hull generation based on clipboard content!
+        FightSystem.getHullHider().fill(team, false);
         Vector dims = WorldeditWrapper.impl.getDimensions(clipboard);
         WorldeditWrapper.impl.pasteClipboard(
                 clipboard,

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/fight/FightTeam.java

@@ -44,6 +44,8 @@ import de.steamwar.sql.SteamwarUser;
 import lombok.Getter;
 import net.md_5.bungee.api.ChatMessageType;
 import org.bukkit.*;
+import org.bukkit.attribute.Attribute;
+import org.bukkit.attribute.AttributeInstance;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
 import org.bukkit.scoreboard.NameTagVisibility;
@@ -151,8 +153,8 @@ public class FightTeam {
         new TeamArea(this);
 
         team = FightScoreboard.getBukkitTeam(name);
-        WorldOfColorWrapper.impl.setTeamColor(team, color);
-        BountifulWrapper.impl.setNametagVisibility(team);
+        team.setColor(color);
+        team.setOption(Team.Option.NAME_TAG_VISIBILITY, Team.OptionStatus.FOR_OWN_TEAM);
         team.setNameTagVisibility(NameTagVisibility.HIDE_FOR_OTHER_TEAMS);
         if (!Config.GameModeConfig.WinConditions.contains(Winconditions.AMONG_US)) {
             team.setAllowFriendlyFire(false);
@@ -284,7 +286,8 @@ public class FightTeam {
         entity.teleport(spawn);
 
         fightPlayer.ifPlayer(player -> {
-            BountifulWrapper.impl.setAttackSpeed(player);
+            AttributeInstance attribute = player.getAttribute(Attribute.ATTACK_SPEED);
+            attribute.setBaseValue(16);
             player.setFoodLevel(20);
             player.getInventory().clear();
             FightSystem.getHullHider().updatePlayer(player);

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/fight/FightWorld.java

@@ -26,7 +26,6 @@ import de.steamwar.fightsystem.listener.Recording;
 import de.steamwar.fightsystem.states.FightState;
 import de.steamwar.fightsystem.states.StateDependent;
 import de.steamwar.fightsystem.utils.CraftbukkitWrapper;
-import de.steamwar.fightsystem.utils.FlatteningWrapper;
 import de.steamwar.linkage.Linked;
 import lombok.Getter;
 import org.bukkit.Bukkit;
@@ -64,11 +63,18 @@ public class FightWorld extends StateDependent {
     public static void forceLoad() {
         Config.ArenaRegion.forEachChunk((cX, cZ) -> {
             Config.world.loadChunk(cX, cZ);
-            FlatteningWrapper.impl.forceLoadChunk(Config.world, cX, cZ);
+            Config.world.setChunkForceLoaded(cX, cZ, true);
         });
     }
 
     public static void resetWorld() {
+        World backup = new WorldCreator(Config.world.getName() + "/backup").createWorld();
+        assert backup != null;
+        Config.ArenaRegion.forEachChunk((x, z) -> {
+            CraftbukkitWrapper.impl.resetChunk(Config.world, backup, x, z);
+        });
+        Bukkit.unloadWorld(backup, false);
+
         List<Entity> entities = new ArrayList<>();
         Recording.iterateOverEntities(Objects::nonNull, entity -> {
             if (entity.getType() != EntityType.PLAYER && (!Config.GameModeConfig.Arena.Leaveable || Config.ArenaRegion.inRegion(entity.getLocation()))) {
@@ -78,14 +84,12 @@ public class FightWorld extends StateDependent {
         entities.forEach(Entity::remove);
         entities.clear();
 
-        World backup = new WorldCreator(Config.world.getName() + "/backup").createWorld();
-        assert backup != null;
+        FightSystem.getHullHider().getHullMap().values().forEach(hull -> hull.fill(true));
+
         Config.ArenaRegion.forEachChunk((x, z) -> {
-            CraftbukkitWrapper.impl.resetChunk(Config.world, backup, x, z);
             for (Player p : Bukkit.getOnlinePlayers()) {
                 de.steamwar.core.CraftbukkitWrapper.sendChunk(p, x, z);
             }
         });
-        Bukkit.unloadWorld(backup, false);
     }
 }

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/fight/FreezeWorld.java

@@ -20,7 +20,6 @@
 package de.steamwar.fightsystem.fight;
 
 import de.steamwar.fightsystem.FightSystem;
-import de.steamwar.fightsystem.utils.BountifulWrapper;
 import org.bukkit.Bukkit;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
@@ -30,19 +29,16 @@ import org.bukkit.event.block.*;
 import org.bukkit.event.entity.ItemSpawnEvent;
 import org.bukkit.event.inventory.InventoryMoveItemEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.event.player.PlayerSwapHandItemsEvent;
 
 public class FreezeWorld implements Listener {
 
-    private final Listener denyHandSwap = BountifulWrapper.impl.newDenyHandSwapListener();
-
     public FreezeWorld() {
         Bukkit.getPluginManager().registerEvents(this, FightSystem.getPlugin());
-        Bukkit.getPluginManager().registerEvents(denyHandSwap, FightSystem.getPlugin());
     }
 
     public void disable() {
         HandlerList.unregisterAll(this);
-        HandlerList.unregisterAll(denyHandSwap);
     }
 
     @EventHandler
@@ -94,4 +90,9 @@ public class FreezeWorld implements Listener {
     public void handlePlayerInteract(PlayerInteractEvent event) {
         event.setCancelled(true);
     }
+
+    @EventHandler
+    public void onSwapItems(PlayerSwapHandItemsEvent event) {
+        if (Fight.fighting(event.getPlayer())) event.setCancelled(true);
+    }
 }

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/fight/Kit.java

@@ -24,12 +24,12 @@ import de.steamwar.fightsystem.FightSystem;
 import de.steamwar.fightsystem.commands.Commands;
 import de.steamwar.fightsystem.commands.GUI;
 import de.steamwar.fightsystem.listener.PersonalKitCreator;
-import de.steamwar.fightsystem.utils.FlatteningWrapper;
-import de.steamwar.fightsystem.utils.ReflectionWrapper;
 import de.steamwar.inventory.SWInventory;
 import de.steamwar.inventory.SWItem;
 import de.steamwar.sql.PersonalKit;
 import de.steamwar.sql.SteamwarUser;
+import io.papermc.paper.datacomponent.DataComponentType;
+import io.papermc.paper.datacomponent.DataComponentTypes;
 import lombok.Getter;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
@@ -39,6 +39,7 @@ import org.bukkit.configuration.file.YamlConfiguration;
 import org.bukkit.enchantments.Enchantment;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.BlockDataMeta;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.bukkit.potion.PotionEffect;
 
@@ -193,13 +194,13 @@ public class Kit {
         if (Config.GameModeConfig.Kits.ForbiddenItems.contains(stack.getType())) return true;
 
         //Check for attribute modifiers
-        if (FlatteningWrapper.impl.hasAttributeModifier(stack)) {
+        if (stack.hasItemMeta() && stack.getItemMeta() != null && stack.getItemMeta().hasAttributeModifiers()) {
             return true;
         }
 
         if (stack.hasItemMeta()) {
             ItemMeta meta = stack.getItemMeta();
-            if (FlatteningWrapper.impl.containsBlockMeta(meta)) return true; //Blocks always upwards slabs etc.
+            if (meta instanceof BlockDataMeta && ((BlockDataMeta) meta).hasBlockData()) return true; //Blocks always upwards slabs etc.
             if (hasItems(stack)) return true; //Blocks prefilled inventories
         }
 
@@ -208,8 +209,42 @@ public class Kit {
         return !normal.isEnchantmentInKit(stack) && !stack.getEnchantments().isEmpty();
     }
 
+    private static final Set<DataComponentType> FORBIDDEN_TYPES = new HashSet<>();
+
+    static {
+        FORBIDDEN_TYPES.add(DataComponentTypes.CUSTOM_NAME);
+        FORBIDDEN_TYPES.add(DataComponentTypes.PROFILE);
+        FORBIDDEN_TYPES.add(DataComponentTypes.UNBREAKABLE);
+        FORBIDDEN_TYPES.add(DataComponentTypes.BLOCK_DATA);
+        FORBIDDEN_TYPES.add(DataComponentTypes.BLOCKS_ATTACKS);
+        FORBIDDEN_TYPES.add(DataComponentTypes.BUNDLE_CONTENTS);
+        FORBIDDEN_TYPES.add(DataComponentTypes.CUSTOM_MODEL_DATA);
+
+        FORBIDDEN_TYPES.add(DataComponentTypes.ATTRIBUTE_MODIFIERS);
+        FORBIDDEN_TYPES.add(DataComponentTypes.TOOL);
+        FORBIDDEN_TYPES.add(DataComponentTypes.WEAPON);
+        FORBIDDEN_TYPES.add(DataComponentTypes.FOOD);
+        FORBIDDEN_TYPES.add(DataComponentTypes.CONSUMABLE);
+        FORBIDDEN_TYPES.add(DataComponentTypes.POTION_CONTENTS);
+        FORBIDDEN_TYPES.add(DataComponentTypes.STORED_ENCHANTMENTS);
+        FORBIDDEN_TYPES.add(DataComponentTypes.CAN_BREAK);
+        FORBIDDEN_TYPES.add(DataComponentTypes.CAN_PLACE_ON);
+        FORBIDDEN_TYPES.add(DataComponentTypes.MAX_DAMAGE);
+        FORBIDDEN_TYPES.add(DataComponentTypes.USE_REMAINDER);
+        FORBIDDEN_TYPES.add(DataComponentTypes.USE_COOLDOWN);
+        FORBIDDEN_TYPES.add(DataComponentTypes.SUSPICIOUS_STEW_EFFECTS);
+        FORBIDDEN_TYPES.add(DataComponentTypes.CHARGED_PROJECTILES);
+        FORBIDDEN_TYPES.add(DataComponentTypes.INTANGIBLE_PROJECTILE);
+        FORBIDDEN_TYPES.add(DataComponentTypes.FIREWORKS);
+        FORBIDDEN_TYPES.add(DataComponentTypes.FIREWORK_EXPLOSION);
+        FORBIDDEN_TYPES.add(DataComponentTypes.EQUIPPABLE);
+        FORBIDDEN_TYPES.add(DataComponentTypes.REPAIR_COST);
+        FORBIDDEN_TYPES.add(DataComponentTypes.ENCHANTABLE);
+    }
+
     public static boolean hasItems(ItemStack stack) {
-        return ReflectionWrapper.impl.hasItems(stack);
+        FORBIDDEN_TYPES.forEach(stack::resetData);
+        return false;
     }
 
     private boolean isEnchantmentInKit(ItemStack stack) {

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/listener/ArrowStopper.java

@@ -22,12 +22,12 @@ package de.steamwar.fightsystem.listener;
 import de.steamwar.fightsystem.Config;
 import de.steamwar.fightsystem.states.FightState;
 import de.steamwar.fightsystem.states.StateDependentTask;
-import de.steamwar.fightsystem.utils.WorldOfColorWrapper;
 import de.steamwar.linkage.Linked;
 import net.minecraft.world.entity.projectile.AbstractArrow;
 import org.bukkit.Location;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
+import org.bukkit.entity.Arrow;
 import org.bukkit.entity.Player;
 import org.bukkit.entity.Projectile;
 import org.bukkit.projectiles.ProjectileSource;
@@ -46,6 +46,7 @@ public class ArrowStopper {
     private void run() {
         Recording.iterateOverEntities(AbstractArrow.class::isInstance, entity -> {
             Projectile arrow = (Projectile) entity;
+            if(!(arrow.getShooter() instanceof Player)) return;
             if (invalidEntity(arrow)) return;
 
             Location prevLocation = arrow.getLocation().toVector().subtract(arrow.getVelocity()).toLocation(arrow.getWorld());
@@ -93,8 +94,12 @@ public class ArrowStopper {
         boolean teamFrom = entity.getVelocity().getZ() > 0;
         boolean overMid = location.getZ() > Config.SpecSpawn.getZ();
         boolean otherSide = teamFrom == overMid;
-        return otherSide || !Config.ArenaRegion.inRegion(location) ||
-                WorldOfColorWrapper.impl.isInBlock(entity) ||
+        if (otherSide || !Config.ArenaRegion.inRegion(location)) return true;
+        boolean result = false;
+        if (entity instanceof Arrow arrow) {
+            result = arrow.isInBlock();
+        }
+        return result ||
                 entity.getVelocity().equals(NULL_VECTOR);
     }
 }

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/listener/BlockFormListener.java

@@ -32,12 +32,16 @@ import org.bukkit.event.block.BlockFormEvent;
 public class BlockFormListener implements Listener {
 
     public BlockFormListener() {
-        new StateDependentListener(Config.GameModeConfig.Arena.DisableIceForm, FightState.All, this);
+        boolean enabled = !Config.GameModeConfig.Arena.DisabledBlockForms.isEmpty();
+        new StateDependentListener(enabled, FightState.All, this);
     }
 
     @EventHandler
     public void onBlockForm(BlockFormEvent event) {
-        if (Config.ArenaRegion.inRegion(event.getBlock()) && event.getNewState().getType() == Material.ICE) {
+        if (!Config.ArenaRegion.inRegion(event.getBlock())) return;
+
+        Material material = event.getNewState().getType();
+        if (Config.GameModeConfig.Arena.DisabledBlockForms.contains(material)) {
             event.setCancelled(true);
         }
     }

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/listener/BlockPlaceCollision.java

@@ -22,11 +22,11 @@ package de.steamwar.fightsystem.listener;
 import de.steamwar.fightsystem.ArenaMode;
 import de.steamwar.fightsystem.states.FightState;
 import de.steamwar.fightsystem.states.StateDependentListener;
-import de.steamwar.fightsystem.utils.FlatteningWrapper;
 import de.steamwar.linkage.Linked;
 import org.bukkit.Location;
 import org.bukkit.block.Block;
 import org.bukkit.entity.Player;
+import org.bukkit.entity.Pose;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.block.BlockPlaceEvent;
@@ -46,7 +46,7 @@ public class BlockPlaceCollision implements Listener {
         // Hitbox size: 0.6xz, 1.8y, 1.5y when sneaking
         Player player = event.getPlayer();
         Location min = player.getLocation().add(-0.3, 0, -0.3);
-        Location max = player.getLocation().add(0.3, FlatteningWrapper.impl.isCrouching(player) ? 0.6 : (player.isSneaking() ? 1.5 : 1.8), 0.3);
+        Location max = player.getLocation().add(0.3, player.getPose() == Pose.SWIMMING ? 0.6 : (player.isSneaking() ? 1.5 : 1.8), 0.3);
 
         Location blockmin = block.getLocation();
         Location blockmax = block.getLocation().add(1.0, 1.0, 1.0);

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/listener/Border.java

@@ -24,7 +24,6 @@ import de.steamwar.fightsystem.Config;
 import de.steamwar.fightsystem.FightSystem;
 import de.steamwar.fightsystem.states.FightState;
 import de.steamwar.fightsystem.states.StateDependentTask;
-import de.steamwar.fightsystem.utils.FlatteningWrapper;
 import de.steamwar.fightsystem.utils.Region;
 import net.md_5.bungee.api.ChatMessageType;
 import org.bukkit.Bukkit;
@@ -141,7 +140,7 @@ public class Border {
 
     private void sendChange(Player player, Block block, Material type) {
         if (block.getType() == Material.AIR) {
-            FlatteningWrapper.impl.sendBlockChange(player, block, type);
+            player.sendBlockChange(block.getLocation(), type.createBlockData());
         }
     }
 }

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/listener/ClickAnalyzer.java

@@ -24,6 +24,7 @@ import de.steamwar.fightsystem.Config;
 import de.steamwar.fightsystem.utils.CraftbukkitWrapper;
 import de.steamwar.linkage.Linked;
 import net.minecraft.network.protocol.game.ServerboundUseItemOnPacket;
+import net.minecraft.network.protocol.game.ServerboundUseItemPacket;
 import org.bukkit.entity.Player;
 
 import java.io.*;
@@ -42,7 +43,7 @@ public class ClickAnalyzer {
     }
 
     public ClickAnalyzer() {
-        TinyProtocol.instance.addFilter(Recording.blockPlacePacket, this::onBlockPlace);
+        TinyProtocol.instance.addFilter(ServerboundUseItemPacket.class, this::onBlockPlace);
         TinyProtocol.instance.addFilter(ServerboundUseItemOnPacket.class, this::onBlockPlace);
     }
 

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/listener/DenyInventoryMovement.java

@@ -20,24 +20,22 @@
 package de.steamwar.fightsystem.listener;
 
 import de.steamwar.fightsystem.ArenaMode;
+import de.steamwar.fightsystem.fight.Fight;
 import de.steamwar.fightsystem.states.FightState;
 import de.steamwar.fightsystem.states.StateDependentListener;
-import de.steamwar.fightsystem.utils.BountifulWrapper;
 import de.steamwar.linkage.Linked;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.inventory.InventoryDragEvent;
 import org.bukkit.event.player.PlayerPickupItemEvent;
+import org.bukkit.event.player.PlayerSwapHandItemsEvent;
 
 @Linked
 public class DenyInventoryMovement implements Listener {
 
     public DenyInventoryMovement() {
         new StateDependentListener(ArenaMode.AntiTest, FightState.AntiIngame, this);
-
-        Listener listener = BountifulWrapper.impl.newDenyHandSwapListener();
-        new StateDependentListener(ArenaMode.AntiTest, FightState.AntiIngame, listener);
     }
 
     @EventHandler
@@ -54,4 +52,9 @@ public class DenyInventoryMovement implements Listener {
     public void onItemPickup(PlayerPickupItemEvent event) {
         event.setCancelled(true);
     }
+
+    @EventHandler
+    public void onSwapItems(PlayerSwapHandItemsEvent event) {
+        if (Fight.fighting(event.getPlayer())) event.setCancelled(true);
+    }
 }

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/listener/Permanent.java

@@ -27,13 +27,12 @@ import de.steamwar.fightsystem.fight.FightPlayer;
 import de.steamwar.fightsystem.fight.FightTeam;
 import de.steamwar.fightsystem.states.FightState;
 import de.steamwar.fightsystem.states.StateDependentListener;
-import de.steamwar.fightsystem.utils.BountifulWrapper;
-import de.steamwar.fightsystem.utils.FlatteningWrapper;
 import de.steamwar.linkage.Linked;
 import net.md_5.bungee.api.ChatMessageType;
 import org.bukkit.GameMode;
 import org.bukkit.Material;
 import org.bukkit.block.Block;
+import org.bukkit.block.data.type.Dispenser;
 import org.bukkit.entity.Player;
 import org.bukkit.entity.TNTPrimed;
 import org.bukkit.event.EventHandler;
@@ -62,7 +61,7 @@ public class Permanent implements Listener {
     private static final Team spectatorTeam = FightScoreboard.getBukkitTeam("Spectator");
 
     static {
-        BountifulWrapper.impl.setNametagVisibility(spectatorTeam);
+        spectatorTeam.setOption(Team.Option.NAME_TAG_VISIBILITY, Team.OptionStatus.FOR_OWN_TEAM);
         spectatorTeam.setNameTagVisibility(NameTagVisibility.NEVER);
     }
 
@@ -234,7 +233,7 @@ public class Permanent implements Listener {
             return;
         }
 
-        if (e.getItem().getType() == Material.TNT || FlatteningWrapper.impl.isFacingWater(block)) {
+        if (e.getItem().getType() == Material.TNT || block.getRelative(((Dispenser) block.getBlockData()).getFacing()).isLiquid()) {
             e.setCancelled(true);
         }
     }

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/listener/PlayerJoinListener.java

@@ -1,74 +0,0 @@
-package de.steamwar.fightsystem.listener;
-
-import de.steamwar.fightsystem.states.FightState;
-import de.steamwar.fightsystem.states.StateDependentListener;
-import de.steamwar.linkage.Linked;
-import net.minecraft.network.protocol.game.ClientboundForgetLevelChunkPacket;
-import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
-import net.minecraft.server.level.ServerPlayer;
-import net.minecraft.world.level.ChunkPos;
-import net.minecraft.world.level.chunk.LevelChunk;
-import org.bukkit.Bukkit;
-import org.bukkit.Chunk;
-import org.bukkit.Location;
-import org.bukkit.World;
-import org.bukkit.craftbukkit.CraftWorld;
-import org.bukkit.craftbukkit.entity.CraftPlayer;
-import org.bukkit.entity.Player;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-import org.bukkit.event.player.PlayerJoinEvent;
-
-@Linked
-public class PlayerJoinListener implements Listener {
-
-    public PlayerJoinListener() {
-        new StateDependentListener(true, FightState.All, this);
-    }
-
-    @EventHandler()
-    public void onPlayerJoin(PlayerJoinEvent event) {
-        Player player = event.getPlayer();
-        World world = player.getWorld();
-
-        Location loc = player.getLocation();
-        int viewDistance = Bukkit.getViewDistance();
-
-        int chunkX = loc.getChunk().getX();
-        int chunkZ = loc.getChunk().getZ();
-
-        // Iterate through the chunks around the player and force a resend
-        for (int x = -viewDistance; x <= viewDistance; x++) {
-            for (int z = -viewDistance; z <= viewDistance; z++) {
-                Chunk chunk = world.getChunkAt(chunkX + x, chunkZ + z);
-                this.forceRefreshChunkForPlayer(player, chunk);
-            }
-        }
-    }
-
-    public void forceRefreshChunkForPlayer(Player player, Chunk bukkitChunk) {
-        ServerPlayer serverPlayer = ((CraftPlayer) player).getHandle();
-        CraftWorld craftWorld = (CraftWorld) bukkitChunk.getWorld();
-
-        int chunkX = bukkitChunk.getX();
-        int chunkZ = bukkitChunk.getZ();
-
-        LevelChunk nmsChunk = craftWorld.getHandle().getChunkSource().getChunk(chunkX, chunkZ, false);
-        if (nmsChunk == null) {
-            // Chunk isn't loaded in memory on the server side;
-            return;
-        }
-
-        ClientboundForgetLevelChunkPacket unloadPacket = new ClientboundForgetLevelChunkPacket(new ChunkPos(chunkX, chunkZ));
-        serverPlayer.connection.send(unloadPacket);
-
-        ClientboundLevelChunkWithLightPacket loadPacket = new ClientboundLevelChunkWithLightPacket(
-                nmsChunk,
-                craftWorld.getHandle().getLightEngine(),
-                null,
-                null,
-                true
-        );
-        serverPlayer.connection.send(loadPacket);
-    }
-}

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/listener/PrepareSchem.java

@@ -28,12 +28,12 @@ import de.steamwar.fightsystem.fight.FightTeam;
 import de.steamwar.fightsystem.states.FightState;
 import de.steamwar.fightsystem.states.OneShotStateDependent;
 import de.steamwar.fightsystem.states.StateDependentListener;
-import de.steamwar.fightsystem.utils.FlatteningWrapper;
 import de.steamwar.fightsystem.utils.Region;
 import de.steamwar.fightsystem.utils.WorldeditWrapper;
 import de.steamwar.linkage.Linked;
 import de.steamwar.sql.SchematicNode;
 import org.bukkit.Bukkit;
+import org.bukkit.Material;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
@@ -52,7 +52,7 @@ public class PrepareSchem implements Listener {
         new OneShotStateDependent(ArenaMode.Prepare, FightState.PostSchemSetup, () -> Bukkit.getScheduler().runTaskLater(FightSystem.getPlugin(), () -> {
             stationaryMovingPistons.clear();
             Fight.getUnrotated().getSchemRegion().forEach((x, y, z) -> {
-                if (FlatteningWrapper.impl.checkPistonMoving(Config.world.getBlockAt(x, y, z))) {
+                if (Config.world.getBlockAt(x, y, z).getType() == Material.MOVING_PISTON) {
                     stationaryMovingPistons.add(new Vector(x, y, z));
                 }
             });
@@ -76,7 +76,7 @@ public class PrepareSchem implements Listener {
 
                 try {
                     region.forEach((x, y, z) -> {
-                        if (FlatteningWrapper.impl.checkPistonMoving(Config.world.getBlockAt(x, y, z)) && !stationaryMovingPistons.contains(new Vector(x, y, z))) {
+                        if (Config.world.getBlockAt(x, y, z).getType() == Material.MOVING_PISTON && !stationaryMovingPistons.contains(new Vector(x, y, z))) {
                             FightSystem.getMessage().broadcast("PREPARE_ACTIVE_PISTON");
                             Bukkit.shutdown();
                             throw new IllegalStateException();

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/listener/Recording.java

@@ -22,6 +22,7 @@ package de.steamwar.fightsystem.listener;
 import com.comphenix.tinyprotocol.TinyProtocol;
 import de.steamwar.Reflection;
 import de.steamwar.fightsystem.ArenaMode;
+import de.steamwar.fightsystem.Config;
 import de.steamwar.fightsystem.FightSystem;
 import de.steamwar.fightsystem.events.TeamDeathEvent;
 import de.steamwar.fightsystem.events.TeamLeaveEvent;
@@ -34,17 +35,17 @@ import de.steamwar.fightsystem.states.FightState;
 import de.steamwar.fightsystem.states.StateDependent;
 import de.steamwar.fightsystem.states.StateDependentListener;
 import de.steamwar.fightsystem.states.StateDependentTask;
-import de.steamwar.fightsystem.utils.BountifulWrapper;
-import de.steamwar.fightsystem.utils.CraftbukkitWrapper;
-import de.steamwar.fightsystem.utils.FlatteningWrapper;
 import de.steamwar.fightsystem.utils.SWSound;
 import de.steamwar.linkage.Linked;
+import net.minecraft.network.protocol.Packet;
 import net.minecraft.network.protocol.game.ServerboundPlayerActionPacket;
 import net.minecraft.network.protocol.game.ServerboundUseItemPacket;
+import net.minecraft.world.InteractionHand;
 import net.minecraft.world.entity.item.PrimedTnt;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.Material;
+import org.bukkit.craftbukkit.CraftWorld;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.LivingEntity;
@@ -63,6 +64,7 @@ import java.util.Random;
 import java.util.function.BiFunction;
 import java.util.function.Consumer;
 import java.util.function.Predicate;
+import java.util.stream.StreamSupport;
 
 @Linked
 public class Recording implements Listener {
@@ -83,12 +85,22 @@ public class Recording implements Listener {
     public static final Class<?> primedTnt = PrimedTnt.class;
 
     public static void iterateOverEntities(Predicate<Object> filter, Consumer<Entity> consumer) {
-        CraftbukkitWrapper.impl.entityIterator().filter(filter).map(net.minecraft.world.entity.Entity::getBukkitEntity).forEach(consumer);
+        StreamSupport.stream(((CraftWorld) Config.world).getHandle().getEntities().getAll().spliterator(), false).filter(filter).map(net.minecraft.world.entity.Entity::getBukkitEntity).forEach(consumer);
     }
 
     public Recording() {
         new StateDependentListener(ArenaMode.AntiReplay, FightState.All, this);
-        new StateDependentListener(ArenaMode.AntiReplay, FightState.All, BountifulWrapper.impl.newHandSwapRecorder());
+        new StateDependentListener(ArenaMode.AntiReplay, FightState.All, new Listener() {
+            @EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
+            public void onItemSwap(PlayerSwapHandItemsEvent e) {
+                if (isNotSent(e.getPlayer()))
+                    return;
+
+                Player player = e.getPlayer();
+                GlobalRecorder.getInstance().item(player, disarmNull(e.getMainHandItem()), "MAINHAND");
+                GlobalRecorder.getInstance().item(player, disarmNull(e.getOffHandItem()), "OFFHAND");
+            }
+        });
         new StateDependent(ArenaMode.AntiReplay, FightState.Ingame) {
             @Override
             public void enable() {
@@ -102,18 +114,18 @@ public class Recording implements Listener {
             }
         }.register();
         new StateDependent(ArenaMode.AntiReplay, FightState.Ingame) {
-            private final BiFunction<Player, Object, Object> place = Recording.this::blockPlace;
+            private final BiFunction<Player, ServerboundUseItemPacket, Object> place = Recording.this::blockPlace;
             private final BiFunction<Player, Object, Object> dig = Recording.this::blockDig;
 
             @Override
             public void enable() {
-                TinyProtocol.instance.addFilter(blockPlacePacket, place);
+                TinyProtocol.instance.addFilter(ServerboundUseItemPacket.class, place);
                 TinyProtocol.instance.addFilter(blockDigPacket, dig);
             }
 
             @Override
             public void disable() {
-                TinyProtocol.instance.removeFilter(blockPlacePacket, place);
+                TinyProtocol.instance.removeFilter(ServerboundUseItemPacket.class, place);
                 TinyProtocol.instance.removeFilter(blockDigPacket, dig);
             }
         }.register();
@@ -131,7 +143,7 @@ public class Recording implements Listener {
         GlobalRecorder.getInstance().entitySpeed(entity);
     }
 
-    private static final Class<?> blockDigPacket = ServerboundPlayerActionPacket.class;
+    private static final Class<? extends Packet<?>> blockDigPacket = ServerboundPlayerActionPacket.class;
     private static final Class<?> playerDigType = blockDigPacket.getDeclaredClasses()[0];
     private static final Reflection.Field<?> blockDigType = Reflection.getField(blockDigPacket, playerDigType, 0);
     private static final Object releaseUseItem = playerDigType.getEnumConstants()[5];
@@ -143,11 +155,9 @@ public class Recording implements Listener {
         return packet;
     }
 
-    public static final Class<?> blockPlacePacket = ServerboundUseItemPacket.class;
-
-    private Object blockPlace(Player p, Object packet) {
-        boolean mainHand = BountifulWrapper.impl.mainHand(packet);
-        if (!isNotSent(p) && BountifulWrapper.impl.bowInHand(mainHand, p)) {
+    private Object blockPlace(Player p, ServerboundUseItemPacket packet) {
+        boolean mainHand = packet.getHand() == InteractionHand.MAIN_HAND;
+        if (!isNotSent(p) && (mainHand ? p.getInventory().getItemInMainHand() : p.getInventory().getItemInOffHand()).getType() == Material.BOW) {
             GlobalRecorder.getInstance().bowSpan(p, true, !mainHand);
         }
         return packet;
@@ -177,7 +187,7 @@ public class Recording implements Listener {
 
     @EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
     public void onBlockPhysics(BlockPhysicsEvent e) {
-        if (FlatteningWrapper.impl.doRecord(e)) {
+        if (e.getBlock() == e.getSourceBlock() || e.getChangedType() == Material.AIR) {
             GlobalRecorder.getInstance().blockChange(e.getBlock());
         }
     }
@@ -285,7 +295,8 @@ public class Recording implements Listener {
             if (!fp.isLiving()) continue;
 
             fp.ifPlayer(player -> {
-                BountifulWrapper.impl.recordHandItems(player);
+                GlobalRecorder.getInstance().item(player, disarmNull(player.getInventory().getItemInMainHand()), "MAINHAND");
+                GlobalRecorder.getInstance().item(player, disarmNull(player.getInventory().getItemInOffHand()), "OFFHAND");
                 GlobalRecorder.getInstance().item(player, disarmNull(player.getInventory().getHelmet()), "HEAD");
                 GlobalRecorder.getInstance().item(player, disarmNull(player.getInventory().getChestplate()), "CHEST");
                 GlobalRecorder.getInstance().item(player, disarmNull(player.getInventory().getLeggings()), "LEGS");

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/listener/WaterRemover.java

@@ -25,11 +25,13 @@ import de.steamwar.fightsystem.fight.Fight;
 import de.steamwar.fightsystem.fight.FightTeam;
 import de.steamwar.fightsystem.states.FightState;
 import de.steamwar.fightsystem.states.StateDependentListener;
-import de.steamwar.fightsystem.utils.FlatteningWrapper;
 import de.steamwar.linkage.Linked;
 import org.bukkit.Location;
+import org.bukkit.Material;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.block.data.Waterlogged;
 import org.bukkit.entity.EntityType;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
@@ -101,7 +103,25 @@ public class WaterRemover implements Listener {
         if (!Config.BlueExtendRegion.inRegion(b) && !Config.RedExtendRegion.inRegion(b)) return;
 
         //checks for water and removes it, if present
-        if (!FlatteningWrapper.impl.removeWater(b)) return;
+        boolean result = true;
+        Material type = b.getType();
+        if (type == Material.WATER || type == Material.LAVA) {
+            b.setType(Material.AIR);
+        } else {
+            BlockData data = b.getBlockData();
+            if (!(data instanceof Waterlogged)) {
+                result = false;
+            } else {
+                Waterlogged waterlogged = (Waterlogged) data;
+                if (waterlogged.isWaterlogged()) {
+                    b.setType(Material.AIR);
+                } else {
+                    result = false;
+                }
+            }
+        }
+
+        if (!result) return;
 
         if (b.getY() < MIN_Y) return;
 

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/record/PacketProcessor.java

@@ -42,11 +42,14 @@ import de.steamwar.techhider.BlockIds;
 import net.md_5.bungee.api.ChatMessageType;
 import net.md_5.bungee.api.chat.BaseComponent;
 import net.md_5.bungee.api.chat.TextComponent;
+import net.minecraft.core.BlockPos;
+import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.entity.Pose;
-import org.bukkit.Bukkit;
-import org.bukkit.Location;
-import org.bukkit.Material;
-import org.bukkit.Sound;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.state.BlockState;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.CraftWorld;
+import org.bukkit.craftbukkit.util.CraftMagicNumbers;
 import org.bukkit.enchantments.Enchantment;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.Player;
@@ -72,7 +75,7 @@ public class PacketProcessor implements Listener {
     private static final org.bukkit.scoreboard.Team team = FightScoreboard.getBukkitTeam("Replay");
 
     static {
-        BountifulWrapper.impl.setNametagVisibility(team);
+        team.setOption(org.bukkit.scoreboard.Team.Option.NAME_TAG_VISIBILITY, org.bukkit.scoreboard.Team.OptionStatus.FOR_OWN_TEAM);
         team.setNameTagVisibility(NameTagVisibility.NEVER);
     }
 
@@ -460,8 +463,15 @@ public class PacketProcessor implements Listener {
         if (!Config.ArenaRegion.in2dRegion(x, z)) return; //Outside of the arena
 
         execSync(() -> {
-            BlockIdWrapper.impl.setBlock(Config.world, x, y, z, TechHiderWrapper.ENABLED && hiddenBlockIds.contains(blockState) ? obfuscateWith : blockState);
-            FightSystem.getHullHider().blockUpdate(Config.world.getBlockAt(x, y, z), BlockIdWrapper.impl.idToMaterial(blockState));
+            int blockState1 = TechHiderWrapper.ENABLED && hiddenBlockIds.contains(blockState) ? obfuscateWith : blockState;
+            BlockState blockData = Block.stateById(blockState1);
+            ServerLevel level = ((CraftWorld) Config.world).getHandle();
+            BlockPos pos = new BlockPos(x, y, z);
+
+            level.removeBlockEntity(pos);
+            level.setBlock(pos, blockData, blockState1);
+            level.getChunkSource().blockChanged(pos);
+            FightSystem.getHullHider().blockUpdate(Config.world.getBlockAt(x, y, z), CraftMagicNumbers.getMaterial(Block.stateById(blockState)).getItemType());
         });
     }
 
@@ -478,7 +488,7 @@ public class PacketProcessor implements Listener {
 
         double finalX = x;
         double finalZ = z;
-        execSync(() -> BountifulWrapper.impl.spawnParticle(Config.world, particleName, finalX + Config.ArenaRegion.getMinX(), y + Config.BluePasteRegion.getMinY(), finalZ + Config.ArenaRegion.getMinZ()));
+        execSync(() -> Config.world.spawnParticle(Particle.valueOf(particleName), finalX + Config.ArenaRegion.getMinX(), y + Config.BluePasteRegion.getMinY(), finalZ + Config.ArenaRegion.getMinZ(), 1));
     }
 
     private void sound() throws IOException {
@@ -502,7 +512,10 @@ public class PacketProcessor implements Listener {
 
         Sound sound = Sound.valueOf(soundName);
 
-        execSync(() -> WorldOfColorWrapper.impl.playSound(new Location(Config.world, x, y, z), sound, soundCategory, volume, pitch));
+        execSync(() -> {
+            Location location = new Location(Config.world, x, y, z);
+            location.getWorld().playSound(location, sound, SoundCategory.valueOf(soundCategory), volume, pitch);
+        });
     }
 
     private void soundAtPlayer() throws IOException {
@@ -603,7 +616,7 @@ public class PacketProcessor implements Listener {
 
         Bukkit.getOnlinePlayers().forEach(p -> {
             p.resetTitle();
-            WorldOfColorWrapper.impl.sendTitle(p, title, subtitle, 5, 40, 5);
+            p.sendTitle(title, subtitle, 5, 40, 5);
         });
     }
 

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/record/Recorder.java

@@ -25,7 +25,6 @@ import de.steamwar.fightsystem.fight.Fight;
 import de.steamwar.fightsystem.fight.FightPlayer;
 import de.steamwar.fightsystem.fight.FightTeam;
 import de.steamwar.fightsystem.states.FightState;
-import de.steamwar.fightsystem.utils.BlockIdWrapper;
 import de.steamwar.fightsystem.utils.CraftbukkitWrapper;
 import de.steamwar.fightsystem.utils.Message;
 import de.steamwar.fightsystem.utils.SWSound;
@@ -35,6 +34,7 @@ import de.steamwar.sql.SteamwarUser;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.block.Block;
+import org.bukkit.craftbukkit.block.CraftBlockState;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
@@ -219,7 +219,7 @@ public interface Recorder {
     }
 
     default void blockChange(Block block) {
-        int blockState = BlockIdWrapper.impl.blockToId(block);
+        int blockState = net.minecraft.world.level.block.Block.getId(((CraftBlockState) block.getState()).getHandle());
 
         int shortX = block.getX() - Config.ArenaRegion.getMinX();
         int shortY = block.getY() - Config.BluePasteRegion.getMinY();

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/BlockIdWrapper.java

@@ -1,75 +0,0 @@
-/*
- *   This file is a part of the SteamWar software.
- *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
- *
- *   This program is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU Affero General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *   GNU Affero General Public License for more details.
- *
- *   You should have received a copy of the GNU Affero General Public License
- *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.fightsystem.utils;
-
-import com.comphenix.tinyprotocol.TinyProtocol;
-import com.mojang.authlib.GameProfile;
-import de.steamwar.core.ProtocolWrapper;
-import de.steamwar.fightsystem.FightSystem;
-import net.minecraft.core.BlockPos;
-import net.minecraft.server.level.ServerLevel;
-import net.minecraft.world.level.block.state.BlockState;
-import org.bukkit.GameMode;
-import org.bukkit.Material;
-import org.bukkit.World;
-import org.bukkit.block.Block;
-import org.bukkit.craftbukkit.CraftWorld;
-import org.bukkit.craftbukkit.block.CraftBlockState;
-import org.bukkit.craftbukkit.util.CraftMagicNumbers;
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.Player;
-
-public class BlockIdWrapper {
-    public static final BlockIdWrapper impl = new BlockIdWrapper();
-
-    public Material idToMaterial(int blockState) {
-        return CraftMagicNumbers.getMaterial(net.minecraft.world.level.block.Block.stateById(blockState)).getItemType();
-    }
-
-    public int blockToId(Block block) {
-        return net.minecraft.world.level.block.Block.getId(((CraftBlockState) block.getState()).getHandle());
-    }
-
-    public void setBlock(World world, int x, int y, int z, int blockState) {
-        BlockState blockData = net.minecraft.world.level.block.Block.stateById(blockState);
-        ServerLevel level = ((CraftWorld) world).getHandle();
-        BlockPos pos = new BlockPos(x, y, z);
-
-        level.removeBlockEntity(pos);
-        level.setBlock(pos, blockData, blockState);
-        level.getChunkSource().blockChanged(pos);
-    }
-
-    public void trackEntity(Player player, Entity entity) {
-        if (entity instanceof Player) {
-            TinyProtocol.instance.sendPacket(player, ProtocolWrapper.playerInfoPacketConstructor(ProtocolWrapper.PlayerInfoAction.REMOVE, new GameProfile(entity.getUniqueId(), entity.getName()), GameMode.CREATIVE));
-        }
-
-        player.showEntity(FightSystem.getPlugin(), entity);
-    }
-
-    public void untrackEntity(Player player, Entity entity) {
-        player.hideEntity(FightSystem.getPlugin(), entity);
-
-        if (entity instanceof Player) {
-            TinyProtocol.instance.sendPacket(player, ProtocolWrapper.playerInfoPacketConstructor(ProtocolWrapper.PlayerInfoAction.ADD, new GameProfile(entity.getUniqueId(), entity.getName()), GameMode.CREATIVE));
-        }
-    }
-}

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/BountifulWrapper.java

@@ -1,158 +0,0 @@
-/*
- *   This file is a part of the SteamWar software.
- *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
- *
- *   This program is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU Affero General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *   GNU Affero General Public License for more details.
- *
- *   You should have received a copy of the GNU Affero General Public License
- *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.fightsystem.utils;
-
-import de.steamwar.Reflection;
-import de.steamwar.fightsystem.fight.Fight;
-import de.steamwar.fightsystem.fight.FightTeam;
-import de.steamwar.fightsystem.listener.Recording;
-import de.steamwar.fightsystem.record.GlobalRecorder;
-import net.minecraft.world.InteractionHand;
-import org.bukkit.*;
-import org.bukkit.attribute.Attribute;
-import org.bukkit.attribute.AttributeInstance;
-import org.bukkit.boss.BarColor;
-import org.bukkit.boss.BarStyle;
-import org.bukkit.boss.BossBar;
-import org.bukkit.entity.Player;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-import org.bukkit.event.player.PlayerPickupArrowEvent;
-import org.bukkit.event.player.PlayerSwapHandItemsEvent;
-import org.bukkit.scoreboard.Team;
-
-import java.util.HashMap;
-import java.util.Map;
-
-public class BountifulWrapper {
-    public static final BountifulWrapper impl = new BountifulWrapper();
-
-    private static final Class<?> enumHand = InteractionHand.class;
-    private static final Object mainHand = enumHand.getEnumConstants()[0];
-    private static final Reflection.Field<?> blockPlaceHand = Reflection.getField(Recording.blockPlacePacket, enumHand, 0);
-
-    public boolean mainHand(Object packet) {
-        return blockPlaceHand.get(packet) == mainHand;
-    }
-
-    public boolean bowInHand(boolean mainHand, Player p) {
-        return (mainHand ? p.getInventory().getItemInMainHand() : p.getInventory().getItemInOffHand()).getType() == Material.BOW;
-    }
-
-    public void setAttackSpeed(Player player) {
-        AttributeInstance attribute = player.getAttribute(Attribute.ATTACK_SPEED);
-        attribute.setBaseValue(16);
-    }
-
-    public void setNametagVisibility(Team team) {
-        team.setOption(Team.Option.NAME_TAG_VISIBILITY, Team.OptionStatus.FOR_OWN_TEAM);
-    }
-
-    public Listener newDenyArrowPickupListener() {
-        return new Listener() {
-            @EventHandler
-            public void onArrowPickup(PlayerPickupArrowEvent e) {
-                if (Fight.fighting(e.getPlayer())) e.setCancelled(true);
-            }
-        };
-    }
-
-    public Listener newDenyHandSwapListener() {
-        return new Listener() {
-            @EventHandler
-            public void onSwapItems(PlayerSwapHandItemsEvent event) {
-                if (Fight.fighting(event.getPlayer())) event.setCancelled(true);
-            }
-        };
-    }
-
-    public void recordHandItems(Player player) {
-        GlobalRecorder.getInstance().item(player, Recording.disarmNull(player.getInventory().getItemInMainHand()), "MAINHAND");
-        GlobalRecorder.getInstance().item(player, Recording.disarmNull(player.getInventory().getItemInOffHand()), "OFFHAND");
-    }
-
-    public Listener newHandSwapRecorder() {
-        return new Listener() {
-            @EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
-            public void onItemSwap(PlayerSwapHandItemsEvent e) {
-                if (Recording.isNotSent(e.getPlayer()))
-                    return;
-
-                Player player = e.getPlayer();
-                GlobalRecorder.getInstance().item(player, Recording.disarmNull(e.getMainHandItem()), "MAINHAND");
-                GlobalRecorder.getInstance().item(player, Recording.disarmNull(e.getOffHandItem()), "OFFHAND");
-            }
-        };
-    }
-
-    public void spawnParticle(World world, String particleName, double x, double y, double z) {
-        world.spawnParticle(Particle.valueOf(particleName), x, y, z, 1);
-    }
-
-    private final Map<Player, BossBar> barMap = new HashMap<>();
-
-    public void sendBar(Player player, FightTeam team, double progress, String text) {
-        barMap.keySet().removeIf(p -> !p.isOnline());
-
-        if (!barMap.containsKey(player)) {
-            BossBar bar = Bukkit.createBossBar(player.getName(), BarColor.WHITE, BarStyle.SOLID);
-            barMap.put(player, bar);
-            bar.addPlayer(player);
-        }
-
-        BossBar bar = barMap.get(player);
-        BarColor color = chat2bar(team.getColor());
-        if (bar.getColor() != color) bar.setColor(color);
-
-        if (bar.getProgress() != progress) bar.setProgress(progress);
-
-        if (!bar.getTitle().equals(text)) bar.setTitle(text);
-    }
-
-    private BarColor chat2bar(ChatColor color) {
-        switch (color) {
-            case DARK_BLUE:
-            case DARK_AQUA:
-            case BLUE:
-            case AQUA:
-                return BarColor.BLUE;
-            case GREEN:
-            case DARK_GREEN:
-                return BarColor.GREEN;
-            case DARK_RED:
-            case RED:
-                return BarColor.RED;
-            case DARK_PURPLE:
-                return BarColor.PURPLE;
-            case GOLD:
-            case YELLOW:
-                return BarColor.YELLOW;
-            case LIGHT_PURPLE:
-                return BarColor.PINK;
-            case BLACK:
-            case WHITE:
-            case GRAY:
-            case DARK_GRAY:
-            default:
-                return BarColor.WHITE;
-        }
-    }
-}

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/CraftbukkitWrapper.java

@@ -19,11 +19,9 @@
 
 package de.steamwar.fightsystem.utils;
 
-import de.steamwar.fightsystem.Config;
 import net.minecraft.core.BlockPos;
 import net.minecraft.world.level.chunk.LevelChunk;
 import net.minecraft.world.level.chunk.LevelChunkSection;
-import org.bukkit.GameRule;
 import org.bukkit.World;
 import org.bukkit.craftbukkit.CraftWorld;
 import org.bukkit.craftbukkit.entity.CraftEntity;
@@ -31,26 +29,12 @@ import org.bukkit.entity.Entity;
 
 import java.util.HashSet;
 import java.util.Set;
-import java.util.stream.Stream;
-import java.util.stream.StreamSupport;
 
 public class CraftbukkitWrapper {
     public static final CraftbukkitWrapper impl = new CraftbukkitWrapper();
 
-    protected net.minecraft.world.entity.Entity getEntity(Entity e) {
-        return ((CraftEntity) e).getHandle();
-    }
-
     public float headRotation(Entity e) {
-        return getEntity(e).getYHeadRot();
-    }
-
-    public Stream<net.minecraft.world.entity.Entity> entityIterator() {
-        return StreamSupport.stream(((CraftWorld) Config.world).getHandle().getEntities().getAll().spliterator(), false);
-    }
-
-    public void setupGamerule() {
-        Config.world.setGameRule(GameRule.LOCATOR_BAR, false);
+        return ((CraftEntity) e).getHandle().getYHeadRot();
     }
 
     private LevelChunk getChunk(World world, int x, int z) {

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/FightUI.java

@@ -34,12 +34,12 @@ import de.steamwar.fightsystem.winconditions.Wincondition;
 import de.steamwar.linkage.Linked;
 import lombok.Getter;
 import org.bukkit.Bukkit;
+import org.bukkit.boss.BarColor;
+import org.bukkit.boss.BarStyle;
+import org.bukkit.boss.BossBar;
 import org.bukkit.entity.Player;
 
-import java.util.ArrayList;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Queue;
+import java.util.*;
 import java.util.logging.Level;
 import java.util.stream.Collectors;
 
@@ -142,6 +142,7 @@ public class FightUI {
         BossBarType.RED_LEFT.text = leftRedText;
     }
 
+    private final Map<Player, BossBar> barMap = new HashMap<>();
     private void sendToPlayers() {
         Bukkit.getOnlinePlayers().forEach(player -> {
             BossBarType bar = BossBarType.byAngle(CraftbukkitWrapper.impl.headRotation(player));
@@ -154,7 +155,55 @@ public class FightUI {
                 }
             }
 
-            BountifulWrapper.impl.sendBar(player, bar.team, bar.progress, FightSystem.getMessage().parse(bar.text.getMsg(), player, params));
+            String text = FightSystem.getMessage().parse(bar.text.getMsg(), player, params);
+            barMap.keySet().removeIf(p -> !p.isOnline());
+
+            if (!barMap.containsKey(player)) {
+                BossBar bar1 = Bukkit.createBossBar(player.getName(), BarColor.WHITE, BarStyle.SOLID);
+                barMap.put(player, bar1);
+                bar1.addPlayer(player);
+            }
+
+            BossBar bar1 = barMap.get(player);
+            BarColor color;
+            switch (bar.team.getColor()) {
+                case DARK_BLUE:
+                case DARK_AQUA:
+                case BLUE:
+                case AQUA:
+                    color = BarColor.BLUE;
+                    break;
+                case GREEN:
+                case DARK_GREEN:
+                    color = BarColor.GREEN;
+                    break;
+                case DARK_RED:
+                case RED:
+                    color = BarColor.RED;
+                    break;
+                case DARK_PURPLE:
+                    color = BarColor.PURPLE;
+                    break;
+                case GOLD:
+                case YELLOW:
+                    color = BarColor.YELLOW;
+                    break;
+                case LIGHT_PURPLE:
+                    color = BarColor.PINK;
+                    break;
+                case BLACK:
+                case WHITE:
+                case GRAY:
+                case DARK_GRAY:
+                default:
+                    color = BarColor.WHITE;
+                    break;
+            }
+            if (bar1.getColor() != color) bar1.setColor(color);
+
+            if (bar1.getProgress() != bar.progress) bar1.setProgress(bar.progress);
+
+            if (!bar1.getTitle().equals(text)) bar1.setTitle(text);
         });
     }
 
@@ -208,9 +257,17 @@ public class FightUI {
 
         Bukkit.getOnlinePlayers().forEach(Player::resetTitle);
         if (winner != null) {
-            Bukkit.getOnlinePlayers().forEach(p -> WorldOfColorWrapper.impl.sendTitle(p, FightSystem.getMessage().parse("UI_WIN", p, winner.getColor(), winner.getName()), FightSystem.getMessage().parse(subtitle, p, params), 5, 40, 5));
+            Bukkit.getOnlinePlayers().forEach(p -> {
+                String title = FightSystem.getMessage().parse("UI_WIN", p, winner.getColor(), winner.getName());
+                String subtitle1 = FightSystem.getMessage().parse(subtitle, p, params);
+                p.sendTitle(title, subtitle1, 5, 40, 5);
+            });
         } else {
-            Bukkit.getOnlinePlayers().forEach(p -> WorldOfColorWrapper.impl.sendTitle(p, FightSystem.getMessage().parse("UI_DRAW", p), FightSystem.getMessage().parse(subtitle, p, params), 5, 40, 5));
+            Bukkit.getOnlinePlayers().forEach(p -> {
+                String title = FightSystem.getMessage().parse("UI_DRAW", p);
+                String subtitle1 = FightSystem.getMessage().parse(subtitle, p, params);
+                p.sendTitle(title, subtitle1, 5, 40, 5);
+            });
         }
     }
 
@@ -232,7 +289,10 @@ public class FightUI {
         }
         Message message = queue.poll();
 
-        Bukkit.getOnlinePlayers().forEach(p -> WorldOfColorWrapper.impl.sendTitle(p, " ", FightSystem.getMessage().parse(message.getMsg(), p, message.getParams()), 5, 40, 5));
+        Bukkit.getOnlinePlayers().forEach(p -> {
+            String subtitle = FightSystem.getMessage().parse(message.getMsg(), p, message.getParams());
+            p.sendTitle(" ", subtitle, 5, 40, 5);
+        });
         Bukkit.getScheduler().runTaskLater(FightSystem.getPlugin(), FightUI::printSubtitle, 50);
         subtitleScheduled = true;
     }

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/FlatteningWrapper.java

@@ -1,97 +0,0 @@
-/*
- *   This file is a part of the SteamWar software.
- *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
- *
- *   This program is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU Affero General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *   GNU Affero General Public License for more details.
- *
- *   You should have received a copy of the GNU Affero General Public License
- *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.fightsystem.utils;
-
-import org.bukkit.Material;
-import org.bukkit.World;
-import org.bukkit.block.Block;
-import org.bukkit.block.data.BlockData;
-import org.bukkit.block.data.Waterlogged;
-import org.bukkit.block.data.type.Dispenser;
-import org.bukkit.entity.Player;
-import org.bukkit.entity.Pose;
-import org.bukkit.event.block.BlockPhysicsEvent;
-import org.bukkit.inventory.ItemStack;
-import org.bukkit.inventory.meta.BlockDataMeta;
-import org.bukkit.inventory.meta.ItemMeta;
-
-public class FlatteningWrapper {
-    public static final FlatteningWrapper impl = new FlatteningWrapper();
-
-    public boolean isWater(Block block) {
-        if (block.getType() == Material.WATER) return true;
-
-        BlockData data = block.getBlockData();
-        if (!(data instanceof Waterlogged)) return false;
-
-        return ((Waterlogged) data).isWaterlogged();
-    }
-
-    public boolean removeWater(Block block) {
-        Material type = block.getType();
-        if (type == Material.WATER || type == Material.LAVA) {
-            block.setType(Material.AIR);
-            return true;
-        }
-
-        BlockData data = block.getBlockData();
-        if (!(data instanceof Waterlogged)) return false;
-
-        Waterlogged waterlogged = (Waterlogged) data;
-        if (waterlogged.isWaterlogged()) {
-            block.setType(Material.AIR);
-            return true;
-        }
-
-        return false;
-    }
-
-    public boolean containsBlockMeta(ItemMeta meta) {
-        return meta instanceof BlockDataMeta && ((BlockDataMeta) meta).hasBlockData();
-    }
-
-    public boolean hasAttributeModifier(ItemStack stack) {
-        return stack.hasItemMeta() && stack.getItemMeta() != null && stack.getItemMeta().hasAttributeModifiers();
-    }
-
-    public boolean doRecord(BlockPhysicsEvent e) {
-        return e.getBlock() == e.getSourceBlock() || e.getChangedType() == Material.AIR;
-    }
-
-    public void forceLoadChunk(World world, int cX, int cZ) {
-        world.setChunkForceLoaded(cX, cZ, true);
-    }
-
-    public boolean checkPistonMoving(Block block) {
-        return block.getType() == Material.MOVING_PISTON;
-    }
-
-    public boolean isFacingWater(Block dispenser) {
-        return dispenser.getRelative(((Dispenser) dispenser.getBlockData()).getFacing()).isLiquid();
-    }
-
-    public boolean isCrouching(Player player) {
-        return player.getPose() == Pose.SWIMMING;
-    }
-
-    public void sendBlockChange(Player player, Block block, Material type) {
-        player.sendBlockChange(block.getLocation(), type.createBlockData());
-    }
-}

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/Hull.java

@@ -20,15 +20,25 @@
 package de.steamwar.fightsystem.utils;
 
 import com.comphenix.tinyprotocol.TinyProtocol;
+import com.mojang.authlib.GameProfile;
+import de.steamwar.core.ProtocolWrapper;
 import de.steamwar.entity.REntity;
 import de.steamwar.fightsystem.Config;
 import de.steamwar.fightsystem.FightSystem;
 import de.steamwar.fightsystem.fight.FightTeam;
+import it.unimi.dsi.fastutil.shorts.Short2ObjectArrayMap;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.SectionPos;
+import net.minecraft.network.protocol.game.ClientboundBlockUpdatePacket;
+import net.minecraft.network.protocol.game.ClientboundSectionBlocksUpdatePacket;
+import net.minecraft.world.level.block.state.BlockState;
+import org.bukkit.GameMode;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.block.Block;
+import org.bukkit.craftbukkit.block.data.CraftBlockData;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.Player;
 
@@ -91,7 +101,7 @@ public class Hull {
     public void addPlayer(Player player) {
         if (players.add(player)) {
             for (Entity entity : entities) {
-                BlockIdWrapper.impl.untrackEntity(player, entity);
+                untrackEntity(player, entity);
             }
         }
     }
@@ -99,7 +109,7 @@ public class Hull {
     public void removePlayer(Player player, boolean activeRemoval) {
         if (players.remove(player) && activeRemoval) {
             for (Entity entity : entities) {
-                BlockIdWrapper.impl.trackEntity(player, entity);
+                trackEntity(player, entity);
             }
             // techhider triggers block change sending
         }
@@ -110,18 +120,34 @@ public class Hull {
         if (region.inRegion(location) && !visibility.get(new IntVector(location).toId(region))) {
             if (entities.add(entity)) {
                 for (Player player : players) {
-                    BlockIdWrapper.impl.untrackEntity(player, entity);
+                    untrackEntity(player, entity);
                 }
             }
         } else {
             if (entities.remove(entity)) {
                 for (Player player : players) {
-                    BlockIdWrapper.impl.trackEntity(player, entity);
+                    trackEntity(player, entity);
                 }
             }
         }
     }
 
+    public void trackEntity(Player player, Entity entity) {
+        if (entity instanceof Player) {
+            TinyProtocol.instance.sendPacket(player, ProtocolWrapper.playerInfoPacketConstructor(ProtocolWrapper.PlayerInfoAction.REMOVE, new GameProfile(entity.getUniqueId(), entity.getName()), GameMode.CREATIVE));
+        }
+
+        player.showEntity(FightSystem.getPlugin(), entity);
+    }
+
+    public void untrackEntity(Player player, Entity entity) {
+        player.hideEntity(FightSystem.getPlugin(), entity);
+
+        if (entity instanceof Player) {
+            TinyProtocol.instance.sendPacket(player, ProtocolWrapper.playerInfoPacketConstructor(ProtocolWrapper.PlayerInfoAction.ADD, new GameProfile(entity.getUniqueId(), entity.getName()), GameMode.CREATIVE));
+        }
+    }
+
     public void removeEntity(Entity entity) {
         entities.remove(entity);
     }
@@ -139,6 +165,15 @@ public class Hull {
         rentities.remove(entity);
     }
 
+    public void fill(boolean visible) {
+        visibility.set(0, visibility.size(), visible);
+        occluding.set(0, occluding.size(), !visible);
+        uncoveredSurface.clear();
+        for (BitSet directionalVisibility : visibilityDirections.values()) {
+            directionalVisibility.set(0, directionalVisibility.size(), visible);
+        }
+    }
+
     public void initialize() {
         visibility.clear();
         occluding.clear();
@@ -189,7 +224,34 @@ public class Hull {
         uncoveredSurface.clear();
 
         for (Map.Entry<IntVector, List<IntVector>> entry : sectionWise.entrySet()) {
-            Object packet = HullHiderWrapper.impl.generateBlockChangePacket(entry.getValue());
+            Object result;
+            List<IntVector> changes = entry.getValue();
+            Object[] blockdata = new Object[changes.size()];
+            for (int i = 0; i < blockdata.length; i++) {
+                IntVector change = changes.get(i);
+                blockdata[i] = ((CraftBlockData) Config.world.getBlockData(change.getX(), change.getY(), change.getZ())).getState();
+            }
+
+            if (changes.size() > 1) {
+                IntVector section = changes.get(0);
+                section = new IntVector(section.getX() >> 4, section.getY() >> 4, section.getZ() >> 4);
+                int xOffset = 16 * section.getX();
+                int yOffset = 16 * section.getY();
+                int zOffset = 16 * section.getZ();
+
+                short[] pos = new short[changes.size()];
+                for (int i = 0; i < changes.size(); i++) {
+                    IntVector change = changes.get(i);
+
+                    pos[i] = (short) (((change.getX() - xOffset) << 8) + ((change.getZ() - zOffset) << 4) + (change.getY() - yOffset));
+                }
+
+                result = new ClientboundSectionBlocksUpdatePacket(SectionPos.of(section.getX(), section.getY(), section.getZ()), new Short2ObjectArrayMap<>(pos, blockdata, blockdata.length));
+            } else {
+                IntVector pos = changes.get(0);
+                result = new ClientboundBlockUpdatePacket(new BlockPos(pos.getX(), pos.getY(), pos.getZ()), (BlockState) blockdata[0]);
+            }
+            Object packet = result;
             players.forEach(player -> TinyProtocol.instance.sendPacket(player, packet));
         }
     }

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/HullHider.java

@@ -19,8 +19,6 @@
 
 package de.steamwar.fightsystem.utils;
 
-import com.comphenix.tinyprotocol.TinyProtocol;
-import de.steamwar.Reflection;
 import de.steamwar.entity.REntity;
 import de.steamwar.fightsystem.Config;
 import de.steamwar.fightsystem.fight.Fight;
@@ -28,18 +26,9 @@ import de.steamwar.fightsystem.fight.FightPlayer;
 import de.steamwar.fightsystem.fight.FightTeam;
 import de.steamwar.fightsystem.listener.Recording;
 import de.steamwar.fightsystem.states.FightState;
-import de.steamwar.fightsystem.states.StateDependent;
 import de.steamwar.fightsystem.states.StateDependentListener;
 import de.steamwar.fightsystem.states.StateDependentTask;
-import de.steamwar.techhider.TechHider;
 import lombok.Getter;
-import net.minecraft.core.Vec3i;
-import net.minecraft.network.protocol.game.ClientboundExplodePacket;
-import net.minecraft.network.protocol.game.ClientboundLevelEventPacket;
-import net.minecraft.network.protocol.game.ClientboundLevelParticlesPacket;
-import net.minecraft.network.protocol.game.ClientboundSoundPacket;
-import org.bukkit.Bukkit;
-import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.block.Block;
 import org.bukkit.entity.Player;
@@ -55,17 +44,12 @@ import org.bukkit.event.player.PlayerQuitEvent;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Objects;
-import java.util.function.BiFunction;
-import java.util.function.Function;
 
 public class HullHider implements Listener {
 
     @Getter
     private final Map<FightTeam, Hull> hullMap = new HashMap<>();
     private final Hull[] hulls;
-    private final Map<Class<?>, BiFunction<Player, Object, Object>> packetHiders = new HashMap<>();
-
-    private static final Class<?> packetPlayOutExplosion = ClientboundExplodePacket.class;
 
     public HullHider() {
         if (!TechHiderWrapper.ENABLED) {
@@ -76,34 +60,20 @@ public class HullHider implements Listener {
         Fight.teams().forEach(team -> hullMap.put(team, new Hull(team)));
         hulls = hullMap.values().toArray(new Hull[0]);
 
-        packetHiders.put(packetPlayOutWorldEvent, this::worldEventHider);
-        packetHiders.put(packetPlayOutExplosion, this::explosionHider);
-        posHiderGenerator(ClientboundLevelParticlesPacket.class, double.class, 1.0);
-        posHiderGenerator(ClientboundSoundPacket.class, int.class, 8.0);
 
         new StateDependentListener(TechHiderWrapper.ENABLED, FightState.Schem, this);
-        new StateDependent(TechHiderWrapper.ENABLED, FightState.Schem) {
-            @Override
-            public void enable() {
-                packetHiders.forEach(TinyProtocol.instance::addFilter);
-                Bukkit.getOnlinePlayers().forEach(HullHider.this::updatePlayer);
-            }
-
-            @Override
-            public void disable() {
-                Bukkit.getOnlinePlayers().forEach(player -> removePlayer(player, true));
-                packetHiders.forEach(TinyProtocol.instance::removeFilter);
-            }
-        }.register();
         new StateDependentTask(TechHiderWrapper.ENABLED, FightState.Schem, this::onTick, 0, 1);
     }
 
     public void initialize(FightTeam team) {
         if (!TechHiderWrapper.ENABLED) return;
-
         hullMap.get(team).initialize();
     }
 
+    public void fill(FightTeam team, boolean visible) {
+        if (!TechHiderWrapper.ENABLED) return;
+        hullMap.get(team).fill(visible);
+    }
 
     @EventHandler(priority = EventPriority.HIGH)
     public void onJoin(PlayerJoinEvent e) {
@@ -138,7 +108,7 @@ public class HullHider implements Listener {
 
     @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
     public void onBlockPhysic(BlockPhysicsEvent e) {
-        if (FlatteningWrapper.impl.doRecord(e)) {
+        if (e.getBlock() == e.getSourceBlock() || e.getChangedType() == Material.AIR) {
             blockUpdate(e.getBlock(), e.getChangedType());
         }
     }
@@ -161,18 +131,6 @@ public class HullHider implements Listener {
         return false;
     }
 
-    public boolean blockPrecise(Player player, int chunkX, int chunkY, int chunkZ) {
-        if (!TechHiderWrapper.ENABLED) return false;
-
-        for (Hull hull : hulls) {
-            if (hull.blockPrecise(player, chunkX, chunkY, chunkZ)) {
-                return true;
-            }
-        }
-
-        return false;
-    }
-
     @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
     public void onSpawn(EntitySpawnEvent e) {
         for (Hull hull : hulls) {
@@ -210,39 +168,4 @@ public class HullHider implements Listener {
             hull.removeREntity(e);
         }
     }
-
-
-    private static final Class<?> packetPlayOutWorldEvent = ClientboundLevelEventPacket.class;
-    private static final Reflection.Field<?> worldEventPosition = Reflection.getField(packetPlayOutWorldEvent, TechHider.blockPosition, 0);
-    public static final Reflection.Field<Integer> blockPositionY = Reflection.getField(Vec3i.class, int.class, 1);
-
-    private Object worldEventHider(Player player, Object packet) {
-        Object baseBlock = worldEventPosition.get(packet);
-        return packetHider(player, packet, new Location(Config.world, TechHider.blockPositionX.get(baseBlock), blockPositionY.get(baseBlock), TechHider.blockPositionZ.get(baseBlock)));
-    }
-
-    private Object explosionHider(Player player, Object packet) {
-        return ReflectionWrapper.impl.explosionHider(player, packet, this::packetHider);
-    }
-
-    private void posHiderGenerator(Class<?> type, Class<? extends Number> posType, double factor) {
-        Function<Object, Location> location = posPacketToLocation(type, posType, factor);
-        packetHiders.put(type, (player, packet) -> packetHider(player, packet, location.apply(packet)));
-    }
-
-    public static Function<Object, Location> posPacketToLocation(Class<?> type, Class<? extends Number> posType, double factor) {
-        Reflection.Field<? extends Number> x = Reflection.getField(type, posType, 0);
-        Reflection.Field<? extends Number> y = Reflection.getField(type, posType, 1);
-        Reflection.Field<? extends Number> z = Reflection.getField(type, posType, 2);
-
-        return packet -> new Location(Config.world, x.get(packet).doubleValue() / factor, y.get(packet).doubleValue() / factor, z.get(packet).doubleValue() / factor);
-    }
-
-    private Object packetHider(Player player, Object packet, Location location) {
-        for (Hull hull : hulls) {
-            if (hull.isLocationHidden(player, location)) return null;
-        }
-
-        return packet;
-    }
 }

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/HullHiderWrapper.java

@@ -1,71 +0,0 @@
-/*
- *   This file is a part of the SteamWar software.
- *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
- *
- *   This program is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU Affero General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *   GNU Affero General Public License for more details.
- *
- *   You should have received a copy of the GNU Affero General Public License
- *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.fightsystem.utils;
-
-import de.steamwar.fightsystem.Config;
-import it.unimi.dsi.fastutil.shorts.Short2ObjectArrayMap;
-import net.minecraft.core.BlockPos;
-import net.minecraft.core.SectionPos;
-import net.minecraft.network.protocol.game.ClientboundBlockUpdatePacket;
-import net.minecraft.network.protocol.game.ClientboundSectionBlocksUpdatePacket;
-import net.minecraft.world.level.block.state.BlockState;
-import org.bukkit.craftbukkit.block.data.CraftBlockData;
-
-import java.util.List;
-
-public class HullHiderWrapper {
-    public static final HullHiderWrapper impl = new HullHiderWrapper();
-
-    public Object generateBlockChangePacket(List<Hull.IntVector> changes) {
-        Object[] blockdata = new Object[changes.size()];
-        for (int i = 0; i < blockdata.length; i++) {
-            Hull.IntVector change = changes.get(i);
-            blockdata[i] = ((CraftBlockData) Config.world.getBlockData(change.getX(), change.getY(), change.getZ())).getState();
-        }
-
-        return generateBlockChangePacket(changes, blockdata);
-    }
-
-    private Object generateBlockChangePacket(List<Hull.IntVector> changes, Object[] blockdata) {
-        if (changes.size() > 1) {
-            Hull.IntVector section = changes.get(0);
-            section = new Hull.IntVector(section.getX() >> 4, section.getY() >> 4, section.getZ() >> 4);
-            int xOffset = 16 * section.getX();
-            int yOffset = 16 * section.getY();
-            int zOffset = 16 * section.getZ();
-
-            short[] pos = new short[changes.size()];
-            for (int i = 0; i < changes.size(); i++) {
-                Hull.IntVector change = changes.get(i);
-
-                pos[i] = (short) (((change.getX() - xOffset) << 8) + ((change.getZ() - zOffset) << 4) + (change.getY() - yOffset));
-            }
-
-            return constructMultiBlockChange(section, pos, blockdata);
-        } else {
-            Hull.IntVector pos = changes.get(0);
-            return new ClientboundBlockUpdatePacket(new BlockPos(pos.getX(), pos.getY(), pos.getZ()), (BlockState) blockdata[0]);
-        }
-    }
-
-    protected Object constructMultiBlockChange(Hull.IntVector section, short[] pos, Object[] blockdata) {
-        return new ClientboundSectionBlocksUpdatePacket(SectionPos.of(section.getX(), section.getY(), section.getZ()), new Short2ObjectArrayMap<>(pos, blockdata, blockdata.length));
-    }
-}

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/ReflectionWrapper.java

@@ -1,79 +0,0 @@
-/*
- *   This file is a part of the SteamWar software.
- *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
- *
- *   This program is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU Affero General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *   GNU Affero General Public License for more details.
- *
- *   You should have received a copy of the GNU Affero General Public License
- *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.fightsystem.utils;
-
-import io.papermc.paper.datacomponent.DataComponentType;
-import io.papermc.paper.datacomponent.DataComponentTypes;
-import org.bukkit.Location;
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.ItemStack;
-
-import java.util.HashSet;
-import java.util.Set;
-
-public class ReflectionWrapper {
-    public static final ReflectionWrapper impl = new ReflectionWrapper();
-
-    private static final Set<DataComponentType> FORBIDDEN_TYPES = new HashSet<>();
-
-    static {
-        FORBIDDEN_TYPES.add(DataComponentTypes.CUSTOM_NAME);
-        FORBIDDEN_TYPES.add(DataComponentTypes.PROFILE);
-        FORBIDDEN_TYPES.add(DataComponentTypes.UNBREAKABLE);
-        FORBIDDEN_TYPES.add(DataComponentTypes.BLOCK_DATA);
-        FORBIDDEN_TYPES.add(DataComponentTypes.BLOCKS_ATTACKS);
-        FORBIDDEN_TYPES.add(DataComponentTypes.BUNDLE_CONTENTS);
-        FORBIDDEN_TYPES.add(DataComponentTypes.CUSTOM_MODEL_DATA);
-
-        FORBIDDEN_TYPES.add(DataComponentTypes.ATTRIBUTE_MODIFIERS);
-        FORBIDDEN_TYPES.add(DataComponentTypes.TOOL);
-        FORBIDDEN_TYPES.add(DataComponentTypes.WEAPON);
-        FORBIDDEN_TYPES.add(DataComponentTypes.FOOD);
-        FORBIDDEN_TYPES.add(DataComponentTypes.CONSUMABLE);
-        FORBIDDEN_TYPES.add(DataComponentTypes.POTION_CONTENTS);
-        FORBIDDEN_TYPES.add(DataComponentTypes.STORED_ENCHANTMENTS);
-        FORBIDDEN_TYPES.add(DataComponentTypes.CAN_BREAK);
-        FORBIDDEN_TYPES.add(DataComponentTypes.CAN_PLACE_ON);
-        FORBIDDEN_TYPES.add(DataComponentTypes.MAX_DAMAGE);
-        FORBIDDEN_TYPES.add(DataComponentTypes.USE_REMAINDER);
-        FORBIDDEN_TYPES.add(DataComponentTypes.USE_COOLDOWN);
-        FORBIDDEN_TYPES.add(DataComponentTypes.SUSPICIOUS_STEW_EFFECTS);
-        FORBIDDEN_TYPES.add(DataComponentTypes.CHARGED_PROJECTILES);
-        FORBIDDEN_TYPES.add(DataComponentTypes.INTANGIBLE_PROJECTILE);
-        FORBIDDEN_TYPES.add(DataComponentTypes.FIREWORKS);
-        FORBIDDEN_TYPES.add(DataComponentTypes.FIREWORK_EXPLOSION);
-        FORBIDDEN_TYPES.add(DataComponentTypes.EQUIPPABLE);
-        FORBIDDEN_TYPES.add(DataComponentTypes.REPAIR_COST);
-        FORBIDDEN_TYPES.add(DataComponentTypes.ENCHANTABLE);
-    }
-
-    public Object explosionHider(Player player, Object packet, PacketHiderFunction packetHiderFunction) {
-        return packet;
-    }
-
-    public boolean hasItems(ItemStack stack) {
-        FORBIDDEN_TYPES.forEach(stack::resetData);
-        return false;
-    }
-
-    public interface PacketHiderFunction {
-        Object hide(Player player, Object packet, Location location);
-    }
-}

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/TechHiderWrapper.java

@@ -19,9 +19,9 @@
 
 package de.steamwar.fightsystem.utils;
 
+import de.steamwar.Reflection;
 import de.steamwar.core.CraftbukkitWrapper;
 import de.steamwar.fightsystem.Config;
-import de.steamwar.fightsystem.FightSystem;
 import de.steamwar.fightsystem.events.BoardingEvent;
 import de.steamwar.fightsystem.events.TeamLeaveEvent;
 import de.steamwar.fightsystem.events.TeamSpawnEvent;
@@ -30,56 +30,119 @@ import de.steamwar.fightsystem.fight.FightTeam;
 import de.steamwar.fightsystem.states.FightState;
 import de.steamwar.fightsystem.states.StateDependent;
 import de.steamwar.fightsystem.states.StateDependentListener;
-import de.steamwar.sql.SteamwarUser;
+import de.steamwar.techhider.AccessPrivilegeProvider;
 import de.steamwar.techhider.TechHider;
 import lombok.Getter;
+import net.minecraft.core.Holder;
+import net.minecraft.core.registries.BuiltInRegistries;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.entity.BlockEntityType;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.material.FluidState;
+import net.minecraft.world.level.material.Fluids;
 import org.bukkit.GameMode;
+import org.bukkit.Material;
+import org.bukkit.craftbukkit.CraftWorld;
+import org.bukkit.craftbukkit.util.CraftMagicNumbers;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerQuitEvent;
 
-import javax.crypto.*;
-import javax.crypto.spec.SecretKeySpec;
-import java.io.File;
-import java.io.IOException;
-import java.nio.file.Files;
-import java.security.InvalidKeyException;
-import java.security.NoSuchAlgorithmException;
+import java.util.Collection;
+import java.util.Optional;
+import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
-public class TechHiderWrapper extends StateDependent implements TechHider.LocationEvaluator, Listener {
+public class TechHiderWrapper extends StateDependent implements Listener {
 
     public static final boolean ENABLED = !Config.OnlyPublicSchematics && !Config.test() && Config.GameModeConfig.Techhider.Active;
 
     @Getter
     private final ConcurrentHashMap<Player, Region> hiddenRegion = new ConcurrentHashMap<>();
-    private final ConcurrentHashMap<Player, Long> patterns = new ConcurrentHashMap<>();
-    private final TechHider techHider;
-    private final SecretKey key;
+    private final HullHider hullHider;
 
-    public TechHiderWrapper() {
-        super(ENABLED, FightState.Schem);
-        techHider = new TechHider(this, Config.GameModeConfig.Techhider.ObfuscateWith, Config.GameModeConfig.Techhider.HiddenBlocks, Config.GameModeConfig.Techhider.HiddenBlockEntities);
+    public TechHiderWrapper(HullHider hullHider) {
+        super(ENABLED, FightState.All);
 
-        try {
-            key = new SecretKeySpec(Files.readAllBytes(new File(System.getProperty("user.home"), "hullhider.key").toPath()), "AES");
-        } catch (IOException e) {
-            throw new SecurityException(e);
-        }
+        this.hullHider = hullHider;
 
-        new StateDependentListener(ENABLED, FightState.Schem, this);
+        new StateDependentListener(ENABLED, FightState.All, this);
         register();
     }
 
     @Override
     public void enable() {
-        techHider.enable();
+        Set<BlockState> blockStatesToObfuscate = getBlockStatesToHideFromMaterials(Config.GameModeConfig.Techhider.HiddenBlocks);
+
+        Set<Block> blocksToObfuscate = Config.GameModeConfig.Techhider.HiddenBlocks.stream()
+                .map(CraftMagicNumbers::getBlock)
+                .collect(Collectors.toUnmodifiableSet());
+
+        Object blockEntityType;
+        try {
+            blockEntityType = BuiltInRegistries.class.getDeclaredField("BLOCK_ENTITY_TYPE").get(null);
+        } catch (Exception e) {
+            throw new IllegalStateException(e);
+        }
+        Reflection.Method method = Reflection.getTypedMethod(Reflection.getClass("net.minecraft.core.Registry"), "get", Optional.class, ResourceLocation.class);
+        Set<BlockEntityType<?>> blockEntityTypeToObfuscate = Config.GameModeConfig.Techhider.HiddenBlockEntities.stream()
+                .map((id) -> {
+                    ResourceLocation loc = ResourceLocation.parse(id);
+                    return ((Optional<Holder.Reference<BlockEntityType<?>>>) method.invoke(blockEntityType, loc)).get().value();
+                })
+                .collect(Collectors.toUnmodifiableSet());
+
+        new TechHider(CraftMagicNumbers.getBlock(Config.GameModeConfig.Techhider.ObfuscateWith), new AccessPrivilegeProvider() {
+            @Override
+            public boolean isEveryonePrivilegedToAccessAllDataWithinChunk(int chunkX, int chunkZ) {
+                return Fight.teams().stream().map(FightTeam::getExtendRegion).allMatch(region -> region.chunkOutside(chunkX, chunkZ));
+            }
+
+            @Override
+            public boolean isPlayerPrivilegedToAccessPosition(Player p, int blockX, int blockY, int blockZ) {
+                return !hullHider.isBlockHidden(p, blockX, blockY, blockZ);
+            }
+
+            @Override
+            public boolean isPlayerPrivilegedToAccessBlock(Player p, int blockX, int blockY, int blockZ, Block block) {
+                return !getHiddenRegion(p).inRegion(blockX, blockY, blockZ) || !blocksToObfuscate.contains(block);
+            }
+
+            @Override
+            public boolean isPlayerPrivilegedToAccessBlockState(Player p, int blockX, int blockY, int blockZ, BlockState blockState) {
+                return !getHiddenRegion(p).inRegion(blockX, blockY, blockZ) || !blockStatesToObfuscate.contains(blockState);
+            }
+
+            // TODO will require entity tracking on the netty thread to prevent future race conditions
+            @Override
+            public boolean isPlayerPrivilegedToAccessEntity(Player p, int entityId) {
+                net.minecraft.world.entity.Entity nmsEntity = ((CraftWorld) p.getWorld()).getHandle().moonrise$getEntityLookup().get(entityId);
+
+                if (nmsEntity != null) {
+                    return !hullHider.isBlockHidden(p, nmsEntity.getBlockX(), nmsEntity.getBlockY(), nmsEntity.getBlockZ());
+                } else {
+                    return true;
+                }
+            }
+
+            @Override
+            public boolean isPlayerPrivilegedToAccessBlockEntity(Player p, int blockX, int blockY, int blockZ, BlockEntityType<?> type) {
+                return !getHiddenRegion(p).inRegion(blockX, blockY, blockZ) || !blockEntityTypeToObfuscate.contains(type);
+            }
+
+            @Override
+            public boolean isPlayerPrivilegedToPerformAction(Player p) {
+                return p.getGameMode() != GameMode.SPECTATOR;
+            }
+        });
     }
 
     @Override
     public void disable() {
-        techHider.disable();
         hiddenRegion.clear();
     }
 
@@ -118,72 +181,6 @@ public class TechHiderWrapper extends StateDependent implements TechHider.Locati
         });
     }
 
-    @Override
-    public boolean suppressInteractions(Player player) {
-        return player.getGameMode() == GameMode.SPECTATOR;
-    }
-
-    @Override
-    public boolean skipChunk(Player player, int chunkX, int chunkZ) {
-        return getHiddenRegion(player).chunkOutside(chunkX, chunkZ);
-    }
-
-    @Override
-    public boolean skipChunkSection(Player player, int chunkX, int chunkY, int chunkZ) {
-        return getHiddenRegion(player).chunkSectionOutside(chunkX, chunkY, chunkZ);
-    }
-
-    @Override
-    public TechHider.State check(Player player, int x, int y, int z) {
-        if (hiddenRegion.computeIfAbsent(player, this::getHiddenRegion).inRegion(x, y, z)) {
-            if (FightSystem.getHullHider().isBlockHidden(player, x, y, z)) {
-                int id = ((y & 3) << 4) + ((z & 3) << 2) + (x & 3);
-                return (patterns.computeIfAbsent(player, this::getPattern) & (1L << id)) == 0 ? TechHider.State.HIDE_AIR : TechHider.State.HIDE;
-            } else {
-                return TechHider.State.CHECK;
-            }
-        } else {
-            return TechHider.State.SKIP;
-        }
-    }
-
-    public long getPattern(Player player) {
-        long pattern = SteamwarUser.get(player.getUniqueId()).getId();
-
-        byte[] bytes = new byte[]{
-                (byte) (pattern & 0xFF),
-                (byte) ((pattern >>> 8) & 0xFF),
-                (byte) ((pattern >>> 16) & 0xFF),
-                (byte) ((pattern >>> 24) & 0xFF)
-        };
-
-        try {
-            Cipher cipher = Cipher.getInstance("AES_256/CFB/NoPadding");
-            cipher.init(Cipher.ENCRYPT_MODE, key);
-            bytes = cipher.doFinal(bytes);
-        } catch (IllegalBlockSizeException | BadPaddingException | NoSuchAlgorithmException | NoSuchPaddingException |
-                 InvalidKeyException e) {
-            throw new SecurityException(e);
-        }
-
-        pattern = bytes[0] & 0xFFL |
-                ((bytes[1] & 0xFFL) << 8) |
-                ((bytes[2] & 0xFFL) << 16) |
-                ((bytes[3] & 0xFFL) << 24);
-
-        /* XXXO   OOOX
-         *  XXXO   OOOX
-         *  XXOX   OOXO
-         *  OOXX   XXOO */
-        pattern |= 0b1110_1110_1101_0011___0001_0001_0010_1100___0000_0000_0000_0000___0000_0000_0000_0000L;
-        return pattern;
-    }
-
-    @Override
-    public boolean blockPrecise(Player player, int chunkX, int chunkY, int chunkZ) {
-        return FightSystem.getHullHider().blockPrecise(player, chunkX, chunkY, chunkZ);
-    }
-
     private Region getHiddenRegion(Player player) {
         if (Config.isReferee(player)) return Region.EMPTY;
 
@@ -194,4 +191,27 @@ public class TechHiderWrapper extends StateDependent implements TechHider.Locati
 
         return Fight.getOpposite(team).getExtendRegion();
     }
+
+    private Stream<BlockState> getWaterloggedBlockStates() {
+        FluidState waterFluidState = Fluids.WATER.getSource(false);
+
+        return BuiltInRegistries.BLOCK.stream()
+                .map((block) -> block.getStateDefinition().getPossibleStates())
+                .flatMap(Collection::stream)
+                .filter((blockState -> blockState.getFluidState() == waterFluidState));
+    }
+
+    private Set<BlockState> getBlockStatesToHideFromMaterials(Set<Material> materials) {
+        Stream<BlockState> allStatesFromMaterials = materials.stream()
+                .map(CraftMagicNumbers::getBlock)
+                .map((block) -> block.getStateDefinition().getPossibleStates())
+                .flatMap(Collection::stream);
+
+        if(materials.contains(Material.WATER)) {
+            return Stream.concat(allStatesFromMaterials, getWaterloggedBlockStates()).collect(Collectors.toUnmodifiableSet());
+        }
+        else {
+            return allStatesFromMaterials.collect(Collectors.toUnmodifiableSet());
+        }
+    }
 }

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/TpsWarper.java

@@ -1,11 +0,0 @@
-package de.steamwar.fightsystem.utils;
-
-import net.minecraft.server.MinecraftServer;
-
-public class TpsWarper {
-    public static final TpsWarper impl = new TpsWarper();
-
-    public void warp(float tps) {
-        MinecraftServer.getServer().tickRateManager().setTickRate(tps);
-    }
-}

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/utils/WorldOfColorWrapper.java

@@ -1,50 +0,0 @@
-/*
- *   This file is a part of the SteamWar software.
- *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
- *
- *   This program is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU Affero General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *   GNU Affero General Public License for more details.
- *
- *   You should have received a copy of the GNU Affero General Public License
- *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.fightsystem.utils;
-
-import org.bukkit.ChatColor;
-import org.bukkit.Location;
-import org.bukkit.Sound;
-import org.bukkit.SoundCategory;
-import org.bukkit.entity.Arrow;
-import org.bukkit.entity.Player;
-import org.bukkit.entity.Projectile;
-import org.bukkit.scoreboard.Team;
-
-public class WorldOfColorWrapper {
-    public static final WorldOfColorWrapper impl = new WorldOfColorWrapper();
-
-    public void setTeamColor(Team team, ChatColor color) {
-        team.setColor(color);
-    }
-
-    public boolean isInBlock(Projectile e) {
-        if (e instanceof Arrow arrow) return arrow.isInBlock();
-        return false;
-    }
-
-    public void playSound(Location location, Sound sound, String soundCategory, float volume, float pitch) {
-        location.getWorld().playSound(location, sound, SoundCategory.valueOf(soundCategory), volume, pitch);
-    }
-
-    public void sendTitle(Player player, String title, String subtitle, int start, int hold, int stop) {
-        player.sendTitle(title, subtitle, start, hold, stop);
-    }
-}

FightSystem/FightSystem_Core/src/de/steamwar/fightsystem/winconditions/WinconditionWaterTechKO.java

@@ -19,13 +19,22 @@
 
 package de.steamwar.fightsystem.winconditions;
 
-import de.steamwar.fightsystem.utils.FlatteningWrapper;
 import de.steamwar.linkage.Linked;
+import org.bukkit.Material;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.block.data.Waterlogged;
 
 @Linked
 public class WinconditionWaterTechKO extends WinconditionBlocks {
 
     public WinconditionWaterTechKO() {
-        super(Winconditions.WATER_TECH_KO, "WaterTechKO", "BAR_WATER", FlatteningWrapper.impl::isWater);
+        super(Winconditions.WATER_TECH_KO, "WaterTechKO", "BAR_WATER", block -> {
+            if (block.getType() == Material.WATER) return true;
+
+            BlockData data = block.getBlockData();
+            if (!(data instanceof Waterlogged)) return false;
+
+            return ((Waterlogged) data).isWaterlogged();
+        });
     }
 }

FightSystem/build.gradle.kts

@@ -57,9 +57,10 @@ tasks.register<FightServer>("WarGear21") {
     description = "Run a WarGear 1.21 Fight Server"
     dependsOn(":SpigotCore:shadowJar")
     dependsOn(":FightSystem:shadowJar")
+    dependsOn(":KotlinCore:shadowJar")
     template = "WarGear21"
     worldName = "arenas/Pentraki"
-    config = "WarGear20.yml"
+    config = "WarGear21.yml"
     jar = "/jars/paper-1.21.6.jar"
 }
 

LobbySystem/src/de/steamwar/lobby/boatrace/BoatRace.java

@@ -20,7 +20,9 @@
 package de.steamwar.lobby.boatrace;
 
 import de.steamwar.entity.REntity;
+import de.steamwar.entity.REntityAction;
 import de.steamwar.entity.REntityServer;
+import de.steamwar.entity.RInteraction;
 import de.steamwar.lobby.LobbySystem;
 import de.steamwar.lobby.util.LeaderboardManager;
 import de.steamwar.sql.SteamwarUser;
@@ -58,11 +60,12 @@ public class BoatRace implements EventListener, Listener {
 
     static {
         boatNpcServer = new REntityServer();
-        REntity starter = new REntity(boatNpcServer, EntityType.VILLAGER, BoatRacePositions.NPC);
-        boatNpcServer.setCallback((player, rEntity, entityAction) -> {
-            if (rEntity != starter) return;
-            Bukkit.getWorlds().get(0).getEntities().stream().filter(entity -> entity.getType() == EntityType.END_CRYSTAL).forEach(Entity::remove);
-            if (entityAction == REntityServer.EntityAction.INTERACT && !oneNotStarted) {
+        new REntity(boatNpcServer, EntityType.VILLAGER, BoatRacePositions.NPC);
+        RInteraction interaction = new RInteraction(boatNpcServer, BoatRacePositions.NPC.clone().subtract(0.5, 0, 0.5));
+        interaction.setInteractionHeight(1.95f);
+        interaction.setCallback((player, entity, action) -> {
+            Bukkit.getWorlds().get(0).getEntities().stream().filter(e -> e.getType() == EntityType.END_CRYSTAL).forEach(Entity::remove);
+            if (action == REntityAction.INTERACT && !oneNotStarted) {
                 oneNotStarted = true;
                 new BoatRace(player);
             }

SpigotCore/SpigotCore_Main/src/com/comphenix/tinyprotocol/TinyProtocol.java

@@ -1,22 +1,3 @@
-/*
- *   This file is a part of the SteamWar software.
- *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
- *
- *   This program is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU Affero General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *   GNU Affero General Public License for more details.
- *
- *   You should have received a copy of the GNU Affero General Public License
- *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
 package com.comphenix.tinyprotocol;
 
 import com.google.common.collect.MapMaker;
@@ -77,6 +58,7 @@ public class TinyProtocol {
 
     public static final TinyProtocol instance = new TinyProtocol(Core.getInstance());
     private final Map<Class<?>, List<BiFunction<Player, Object, Object>>> packetFilters = new HashMap<>();
+    private final Set<BiFunction<Player, Object, Object>> globalClientboundFilters = new HashSet<>();
 
     public static void init() {
         // enforce init
@@ -245,19 +227,18 @@ public class TinyProtocol {
         }
     }
 
-    public <T> void addTypedFilter(Class<T> packetType, BiFunction<Player, ? super T, Object> filter) {
+    public <T extends Packet<?>> void addFilter(Class<T> packetType, BiFunction<Player, ? super T, Object> filter) {
         packetFilters.computeIfAbsent(packetType, c -> new CopyOnWriteArrayList<>()).add((BiFunction) filter);
     }
 
-    @Deprecated
-    public void addFilter(Class<?> packetType, BiFunction<Player, Object, Object> filter) {
-        packetFilters.computeIfAbsent(packetType, c -> new CopyOnWriteArrayList<>()).add(filter);
-    }
-
     public void removeFilter(Class<?> packetType, BiFunction<Player, ?, Object> filter) {
         packetFilters.getOrDefault(packetType, Collections.emptyList()).remove(filter);
     }
 
+    public void addGlobalClientboundFilter(BiFunction<Player, Packet<?>, Object> filter) {
+        globalClientboundFilters.add((BiFunction) filter);
+    }
+
     /**
      * Send a packet to a particular player.
      *
@@ -471,6 +452,13 @@ public class TinyProtocol {
         public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
             try {
                 msg = filterPacket(player, msg);
+
+                if (msg instanceof Packet<?>) {
+                    for (BiFunction<Player, Object, Object> filter : globalClientboundFilters) {
+                        msg = filter.apply(player, msg);
+                        if (msg == null) break;
+                    }
+                }
             } catch (Exception e) {
                 plugin.getLogger().log(Level.SEVERE, "Error in onPacketOutAsync().", e);
             }

SpigotCore/SpigotCore_Main/src/de/steamwar/core/WorldIdentifier.java

@@ -43,9 +43,8 @@ public class WorldIdentifier {
     }
 
     public WorldIdentifier() {
-        TinyProtocol.instance.addFilter(ClientboundLoginPacket.class, (player, o) -> {
-            if (resourceKey == null) return o;
-            ClientboundLoginPacket packet = (ClientboundLoginPacket) o;
+        TinyProtocol.instance.addFilter(ClientboundLoginPacket.class, (player, packet) -> {
+            if (resourceKey == null) return packet;
 
             return new ClientboundLoginPacket(packet.playerId(),
                     packet.hardcore(),

SpigotCore/SpigotCore_Main/src/de/steamwar/core/events/AntiNocom.java

@@ -26,6 +26,7 @@ import de.steamwar.linkage.Linked;
 import de.steamwar.sql.SWException;
 import de.steamwar.techhider.ProtocolUtils;
 import de.steamwar.techhider.TechHider;
+import net.minecraft.core.BlockPos;
 import net.minecraft.network.protocol.game.ServerboundPlayerActionPacket;
 import net.minecraft.network.protocol.game.ServerboundUseItemOnPacket;
 import net.minecraft.world.phys.BlockHitResult;
@@ -45,7 +46,7 @@ public class AntiNocom implements Listener {
     private final Map<Player, Integer> flags = new ConcurrentHashMap<>();
 
     public AntiNocom() {
-        TinyProtocol.instance.addFilter(blockDig, this::onDig);
+        TinyProtocol.instance.addFilter(ServerboundPlayerActionPacket.class, this::onDig);
         registerUseItem();
     }
 
@@ -55,26 +56,15 @@ public class AntiNocom implements Listener {
     }
 
     private void registerUseItem() {
-        Class<?> useItem = ServerboundUseItemOnPacket.class;
-
-        Class<?> movingObjectPositionBlock = BlockHitResult.class;
-        Reflection.Field<?> useItemPosition = Reflection.getField(useItem, movingObjectPositionBlock, 0);
-        Reflection.Field<?> movingBlockPosition = Reflection.getField(movingObjectPositionBlock, TechHider.blockPosition, 0);
-
-        Function<Object, Object> getPosition = (packet) -> movingBlockPosition.get(useItemPosition.get(packet));
-
-        TinyProtocol.instance.addFilter(useItem, (player, packet) -> {
-            Object pos = getPosition.apply(packet);
-            return isValid(player, "UseItem", TechHider.blockPositionX.get(pos), TechHider.blockPositionZ.get(pos)) ? packet : null;
+        TinyProtocol.instance.addFilter(ServerboundUseItemOnPacket.class, (player, packet) -> {
+            BlockPos pos = packet.getHitResult().getBlockPos();
+            return isValid(player, "UseItem", pos.getX(), pos.getZ()) ? packet : null;
         });
     }
 
-    private static final Class<?> blockDig = ServerboundPlayerActionPacket.class;
-    private static final Reflection.Field<?> digPosition = Reflection.getField(blockDig, TechHider.blockPosition, 0);
-
-    private Object onDig(Player player, Object packet) {
-        Object pos = digPosition.get(packet);
-        return isValid(player, "Dig", TechHider.blockPositionX.get(pos), TechHider.blockPositionZ.get(pos)) ? packet : null;
+    private ServerboundPlayerActionPacket onDig(Player player, ServerboundPlayerActionPacket packet) {
+        BlockPos pos = packet.getPos();
+        return isValid(player, "Dig", pos.getX(), pos.getZ()) ? packet : null;
     }
 
     private boolean isValid(Player player, String type, int x, int z) {

SpigotCore/SpigotCore_Main/src/de/steamwar/entity/RArmorStand.java

@@ -20,6 +20,7 @@
 package de.steamwar.entity;
 
 import lombok.Getter;
+import lombok.Setter;
 import net.minecraft.network.syncher.EntityDataAccessor;
 import net.minecraft.network.syncher.EntityDataSerializers;
 import org.bukkit.Location;
@@ -27,13 +28,16 @@ import org.bukkit.entity.EntityType;
 
 import java.util.function.Consumer;
 
-public class RArmorStand extends REntity {
+@Getter
+public class RArmorStand extends REntity implements RInteractableEntity<RArmorStand> {
 
     private static final EntityDataAccessor<Byte> sizeWatcher = new EntityDataAccessor<>(15, EntityDataSerializers.BYTE);
 
-    @Getter
     private final Size size;
 
+    @Setter
+    private REntityActionListener<RArmorStand> callback = null;
+
     public RArmorStand(REntityServer server, Location location, Size size) {
         super(server, EntityType.ARMOR_STAND, location, 0);
         this.size = size;

SpigotCore/SpigotCore_Main/src/de/steamwar/entity/REntityAction.java

@@ -1,7 +1,7 @@
 /*
  *   This file is a part of the SteamWar software.
  *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU Affero General Public License as published by
@@ -17,20 +17,9 @@
  *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package de.steamwar.bausystem.utils;
+package de.steamwar.entity;
 
-import org.bukkit.event.Event;
-import org.bukkit.event.HandlerList;
-
-public class TickStartEvent extends Event {
-
-    private static final HandlerList handlers = new HandlerList();
-
-    public HandlerList getHandlers() {
-        return handlers;
-    }
-
-    public static HandlerList getHandlerList() {
-        return handlers;
-    }
+public enum REntityAction {
+    INTERACT,
+    ATTACK,
 }

SpigotCore/SpigotCore_Main/src/de/steamwar/entity/REntityActionListener.java

@@ -1,7 +1,7 @@
 /*
  *   This file is a part of the SteamWar software.
  *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU Affero General Public License as published by
@@ -17,20 +17,10 @@
  *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package de.steamwar.bausystem.utils;
+package de.steamwar.entity;
 
-import org.bukkit.event.Event;
-import org.bukkit.event.HandlerList;
+import org.bukkit.entity.Player;
 
-public class TickEndEvent extends Event {
-
-    private static final HandlerList handlers = new HandlerList();
-
-    public HandlerList getHandlers() {
-        return handlers;
-    }
-
-    public static HandlerList getHandlerList() {
-        return handlers;
-    }
+public interface REntityActionListener<E extends REntity> {
+    void onAction(Player player, E entity, REntityAction action);
 }

SpigotCore/SpigotCore_Main/src/de/steamwar/entity/REntityServer.java

@@ -51,7 +51,6 @@ public class REntityServer implements Listener {
     private final HashMap<Player, Location> lastLocation = new HashMap<>();
     private final HashMap<Player, Integer> viewDistance = new HashMap<>();
 
-    private EntityActionListener callback = null;
     private final Set<Player> playersThatClicked = Collections.synchronizedSet(new HashSet<>());
 
     private final BiFunction<Player, ServerboundInteractPacket, Object> filter = (player, packet) -> {
@@ -61,25 +60,19 @@ public class REntityServer implements Listener {
         if (playersThatClicked.contains(player)) return null;
 
         playersThatClicked.add(player);
-        EntityAction action = packet.isAttack() ? EntityAction.ATTACK : EntityAction.INTERACT;
+        REntityAction action = packet.isAttack() ? REntityAction.ATTACK : REntityAction.INTERACT;
         Bukkit.getScheduler().runTask(Core.getInstance(), () -> {
             playersThatClicked.remove(player);
-            callback.onAction(player, entity, action);
+            if (entity instanceof RInteractableEntity interactable && interactable.getCallback() != null) {
+                interactable.getCallback().onAction(player, entity, action);
+            }
         });
         return null;
     };
 
     public REntityServer() {
         Core.getInstance().getServer().getPluginManager().registerEvents(this, Core.getInstance());
-    }
-
-    public void setCallback(EntityActionListener callback) {
-        boolean uninitialized = this.callback == null;
-        this.callback = callback;
-
-        if (uninitialized) {
-            TinyProtocol.instance.addTypedFilter(ServerboundInteractPacket.class, filter);
-        }
+        TinyProtocol.instance.addFilter(ServerboundInteractPacket.class, filter);
     }
 
     public void addPlayer(Player player) {
@@ -293,13 +286,4 @@ public class REntityServer implements Listener {
     private long chunkToId(int x, int z) {
         return ((long) x << 32) + z;
     }
-
-    public enum EntityAction {
-        INTERACT,
-        ATTACK,
-    }
-
-    public interface EntityActionListener {
-        void onAction(Player player, REntity entity, EntityAction action);
-    }
 }

SpigotCore/SpigotCore_Main/src/de/steamwar/entity/RFallingBlockEntity.java

@@ -20,16 +20,21 @@
 package de.steamwar.entity;
 
 import de.steamwar.techhider.BlockIds;
+import lombok.AccessLevel;
 import lombok.Getter;
+import lombok.Setter;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.entity.EntityType;
 
 @Getter
-public class RFallingBlockEntity extends REntity {
+public class RFallingBlockEntity extends REntity implements RInteractableEntity<RFallingBlockEntity> {
 
     private final Material material;
 
+    @Setter
+    private REntityActionListener<RFallingBlockEntity> callback = null;
+
     public RFallingBlockEntity(REntityServer server, Location location, Material material) {
         super(server, EntityType.FALLING_BLOCK, location, BlockIds.impl.materialToId(material));
         this.material = material;

SpigotCore/SpigotCore_Main/src/de/steamwar/entity/RInteractableEntity.java

@@ -0,0 +1,34 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.entity;
+
+import org.bukkit.entity.Player;
+
+import java.util.function.BiConsumer;
+
+public interface RInteractableEntity<E extends REntity> {
+    REntityActionListener<E> getCallback();
+
+    void setCallback(REntityActionListener<E> callback);
+
+    default void setCallback(BiConsumer<Player, REntityAction> callback) {
+        setCallback((player, interaction, entityAction) -> callback.accept(player, entityAction));
+    }
+}

SpigotCore/SpigotCore_Main/src/de/steamwar/entity/RInteraction.java

@@ -0,0 +1,116 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.entity;
+
+import de.steamwar.core.BountifulWrapper;
+import lombok.Getter;
+import lombok.Setter;
+import org.bukkit.Location;
+import org.bukkit.entity.EntityType;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.BiConsumer;
+import java.util.function.Consumer;
+
+/**
+ * !! This class cannot be used in Versions lower than or equal to 1.19.4 !!
+ */
+@Getter
+public class RInteraction extends REntity implements RInteractableEntity<RInteraction> {
+
+    protected final Consumer<Object> updatePacketSink = o -> server.updateEntity(this, o);
+
+    @Setter
+    private REntityActionListener<RInteraction> callback = null;
+
+    private float interactionWidth = 1.0f;
+    private float interactionHeight = 1.0f;
+    private boolean responsive = false;
+
+    public RInteraction(REntityServer server, Location location) {
+        super(server, EntityType.INTERACTION, location);
+        server.addEntity(this);
+    }
+
+    @Override
+    protected void postSpawn(Consumer<Object> packetSink) {
+        super.postSpawn(packetSink);
+        sendPacket(packetSink,
+                this::getInteractionWidthData,
+                this::getInteractionHeightData,
+                this::getResponsiveData
+        );
+    }
+
+    @SafeVarargs
+    protected final void sendPacket(Consumer<Object> packetSink, BiConsumer<Boolean, BiConsumer<Object, Object>>... dataSinkSinks) {
+        List<Object> keyValueData = new ArrayList<>();
+        boolean ignoreDefault = packetSink == updatePacketSink;
+        for (BiConsumer<Boolean, BiConsumer<Object, Object>> dataSinkSink : dataSinkSinks) {
+            dataSinkSink.accept(ignoreDefault, (dataWatcher, value) -> {
+                keyValueData.add(dataWatcher);
+                keyValueData.add(value);
+            });
+        }
+        if (!keyValueData.isEmpty()) {
+            packetSink.accept(getDataWatcherPacket(keyValueData.toArray()));
+        }
+    }
+
+    public void setInteractionWidth(float interactionWidth) {
+        this.interactionWidth = interactionWidth;
+        sendPacket(updatePacketSink, this::getInteractionWidthData);
+    }
+
+    private static final Object interactionWidthWatcher = BountifulWrapper.impl.getDataWatcherObject(8, Float.class);
+
+    private void getInteractionWidthData(boolean ignoreDefault, BiConsumer<Object, Object> dataSink) {
+        if (ignoreDefault || interactionWidth != 1.0) {
+            dataSink.accept(interactionWidthWatcher, interactionWidth);
+        }
+    }
+
+    public void setInteractionHeight(float interactionHeight) {
+        this.interactionHeight = interactionHeight;
+        sendPacket(updatePacketSink, this::getInteractionHeightData);
+    }
+
+    private static final Object interactionHeightWatcher = BountifulWrapper.impl.getDataWatcherObject(9, Float.class);
+
+    private void getInteractionHeightData(boolean ignoreDefault, BiConsumer<Object, Object> dataSink) {
+        if (ignoreDefault || interactionHeight != 1.0) {
+            dataSink.accept(interactionHeightWatcher, interactionHeight);
+        }
+    }
+
+    public void setResponsive(boolean responsive) {
+        this.responsive = responsive;
+        sendPacket(updatePacketSink, this::getResponsiveData);
+    }
+
+    private static final Object responsiveWatcher = BountifulWrapper.impl.getDataWatcherObject(10, Boolean.class);
+
+    private void getResponsiveData(boolean ignoreDefault, BiConsumer<Object, Object> dataSink) {
+        if (ignoreDefault || !responsive) {
+            dataSink.accept(responsiveWatcher, responsive);
+        }
+    }
+}

SpigotCore/SpigotCore_Main/src/de/steamwar/entity/RPlayer.java

@@ -27,6 +27,7 @@ import de.steamwar.network.CoreNetworkHandler;
 import de.steamwar.network.NetworkSender;
 import de.steamwar.network.packets.common.PlayerSkinRequestPacket;
 import lombok.Getter;
+import lombok.Setter;
 import net.minecraft.network.protocol.game.ClientboundAddEntityPacket;
 import net.minecraft.world.phys.Vec3;
 import org.bukkit.GameMode;
@@ -39,7 +40,7 @@ import java.util.Map;
 import java.util.UUID;
 import java.util.function.Consumer;
 
-public class RPlayer extends REntity {
+public class RPlayer extends REntity implements RInteractableEntity<RPlayer> {
 
     private static final Object skinPartsDataWatcher = BountifulWrapper.impl.getDataWatcherObject(17, Byte.class);
 
@@ -48,6 +49,10 @@ public class RPlayer extends REntity {
     @Getter
     private final String name;
 
+    @Setter
+    @Getter
+    private REntityActionListener<RPlayer> callback = null;
+
     public RPlayer(REntityServer server, UUID uuid, String name, Location location) {
         super(server, EntityType.PLAYER, UUID.nameUUIDFromBytes(uuid.toString().getBytes(StandardCharsets.UTF_8)), location, 0);
         this.actualUUID = uuid;

SpigotCore/SpigotCore_Main/src/de/steamwar/techhider/AccessPrivilegeProvider.java

@@ -0,0 +1,41 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.techhider;
+
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.entity.BlockEntityType;
+import net.minecraft.world.level.block.state.BlockState;
+import org.bukkit.entity.Player;
+
+public interface AccessPrivilegeProvider {
+    boolean isEveryonePrivilegedToAccessAllDataWithinChunk(int chunkX, int chunkZ);
+
+    boolean isPlayerPrivilegedToAccessPosition(Player p, int blockX, int blockY, int blockZ);
+
+    boolean isPlayerPrivilegedToAccessBlock(Player p, int blockX, int blockY, int blockZ, Block block);
+
+    boolean isPlayerPrivilegedToAccessBlockState(Player p, int blockX, int blockY, int blockZ, BlockState blockState);
+
+    boolean isPlayerPrivilegedToAccessEntity(Player p, int entityId);
+
+    boolean isPlayerPrivilegedToAccessBlockEntity(Player p, int blockX, int blockY, int blockZ, BlockEntityType<?> type);
+
+    boolean isPlayerPrivilegedToPerformAction(Player p);
+}

SpigotCore/SpigotCore_Main/src/de/steamwar/techhider/BlockIds.java

@@ -19,8 +19,7 @@
 
 package de.steamwar.techhider;
 
-import de.steamwar.Reflection;
-import net.minecraft.core.IdMapper;
+import net.minecraft.core.registries.BuiltInRegistries;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.state.BlockState;
 import net.minecraft.world.level.material.FluidState;
@@ -39,18 +38,20 @@ public class BlockIds {
     }
 
     private static final FluidState water = Fluids.WATER.getSource(false);
-    private static final Iterable<BlockState> registryBlockId = (Iterable<BlockState>) Reflection.getField(TechHider.block, IdMapper.class, 0).get(null);
 
     public Set<Integer> materialToAllIds(Material material) {
         Set<Integer> ids = new HashSet<>();
+
         for (BlockState data : getBlock(material).getStateDefinition().getPossibleStates()) {
             ids.add(getCombinedId(data));
         }
 
         if (material == Material.WATER) {
-            for (BlockState data : registryBlockId) {
-                if (data.getFluidState() == water) {
-                    ids.add(getCombinedId(data));
+            for (Block block : BuiltInRegistries.BLOCK) {
+                for (BlockState data : block.getStateDefinition().getPossibleStates()) {
+                    if (data.getFluidState() == water) {
+                        ids.add(getCombinedId(data));
+                    }
                 }
             }
         }

SpigotCore/SpigotCore_Main/src/de/steamwar/techhider/ChunkHider.java

@@ -22,295 +22,284 @@ package de.steamwar.techhider;
 import de.steamwar.Reflection;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
-import lombok.Getter;
-import net.minecraft.core.Registry;
-import net.minecraft.core.registries.BuiltInRegistries;
+import net.minecraft.core.SectionPos;
 import net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData;
 import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
-import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.SimpleBitStorage;
+import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.entity.BlockEntityType;
+import net.minecraft.world.level.block.state.BlockState;
 import org.bukkit.entity.Player;
 
-import java.util.Collections;
 import java.util.List;
-import java.util.Set;
-import java.util.function.BiFunction;
 import java.util.function.UnaryOperator;
-import java.util.stream.Collectors;
 
 public class ChunkHider {
-    public static final ChunkHider impl = new ChunkHider();
+    private static final UnaryOperator<Object> chunkPacketShallowCloner = ProtocolUtils.shallowCloneGenerator(ClientboundLevelChunkWithLightPacket.class);
+    private static final UnaryOperator<Object> chunkDataShallowCloner = ProtocolUtils.shallowCloneGenerator(ClientboundLevelChunkPacketData.class);
 
-    public Class<?> mapChunkPacket() {
-        return ClientboundLevelChunkWithLightPacket.class;
+    private static final Reflection.Field<ClientboundLevelChunkPacketData> levelChunkPacketDataField = Reflection.getField(ClientboundLevelChunkWithLightPacket.class, ClientboundLevelChunkPacketData.class, 0);
+
+    private static final Reflection.Field<byte[]> chunkBlockDataField = Reflection.getField(ClientboundLevelChunkPacketData.class, byte[].class, 0);
+    private static final Reflection.Field<List> chunkBlockEntitiesDataField = Reflection.getField(ClientboundLevelChunkPacketData.class, List.class, 0);
+
+    private final int SECTION_SPAN_SIZE = 16;
+    private final byte BIT_PER_BLOCK_INDIRECTION_LIMIT = 8;
+    private final byte BIT_PER_BIOME_INDIRECTION_LIMIT = 3;
+
+    private final int BLOCKS_PER_SECTION = 4096;
+    private final int BIOMES_PER_SECTION = 64;
+
+    private final int blockIdUsedForHiding;
+    private final AccessPrivilegeProvider accessPrivilegeProvider;
+
+    public ChunkHider(Block blockUsedForObfuscation, AccessPrivilegeProvider accessPrivilegeProvider) {
+        blockIdUsedForHiding = Block.BLOCK_STATE_REGISTRY.getId(blockUsedForObfuscation.defaultBlockState());
+        this.accessPrivilegeProvider = accessPrivilegeProvider;
     }
 
-    private static final UnaryOperator<Object> chunkPacketCloner = ProtocolUtils.shallowCloneGenerator(ClientboundLevelChunkWithLightPacket.class);
-    private static final UnaryOperator<Object> chunkDataCloner = ProtocolUtils.shallowCloneGenerator(ClientboundLevelChunkPacketData.class);
+    private int getLongsRequiredToEncodeEntries(int bitsPerEntry, int entryCount) {
+        int entriesPerLong = Long.SIZE / bitsPerEntry;
+        int dataLengthAsLongCount = (entryCount + entriesPerLong - 1) / entriesPerLong;
 
-    private static final Reflection.Field<Integer> chunkXField = Reflection.getField(ClientboundLevelChunkWithLightPacket.class, int.class, 0);
-    private static final Reflection.Field<Integer> chunkZField = Reflection.getField(ClientboundLevelChunkWithLightPacket.class, int.class, 1);
-    private static final Reflection.Field<ClientboundLevelChunkPacketData> chunkData = Reflection.getField(ClientboundLevelChunkWithLightPacket.class, ClientboundLevelChunkPacketData.class, 0);
-
-    private static final Reflection.Field<byte[]> dataField = Reflection.getField(ClientboundLevelChunkPacketData.class, byte[].class, 0);
-    private static final Reflection.Field<List> tileEntities = Reflection.getField(ClientboundLevelChunkPacketData.class, List.class, 0);
-
-    public BiFunction<Player, Object, Object> chunkHiderGenerator(TechHider techHider) {
-        return (p, packet) -> {
-            int chunkX = chunkXField.get(packet);
-            int chunkZ = chunkZField.get(packet);
-            if (techHider.getLocationEvaluator().skipChunk(p, chunkX, chunkZ)) {
-                return packet;
-            }
-
-            packet = chunkPacketCloner.apply(packet);
-            Object dataWrapper = chunkDataCloner.apply(chunkData.get(packet));
-
-            Set<String> hiddenBlockEntities = techHider.getHiddenBlockEntities();
-            tileEntities.set(dataWrapper, ((List<?>) tileEntities.get(dataWrapper)).stream().filter(te -> tileEntityVisible(hiddenBlockEntities, te)).collect(Collectors.toList()));
-
-            ByteBuf in = Unpooled.wrappedBuffer(dataField.get(dataWrapper));
-            ByteBuf out = Unpooled.buffer(in.readableBytes() + 64);
-            for (int yOffset = p.getWorld().getMinHeight(); yOffset < p.getWorld().getMaxHeight(); yOffset += 16) {
-                SectionHider section = new SectionHider(p, techHider, in, out, chunkX, yOffset / 16, chunkZ);
-                section.copyBlockCount();
-
-                blocks(section);
-                biomes(section);
-            }
-
-            if (in.readableBytes() != 0) {
-                throw new IllegalStateException("ChunkHider21: Incomplete chunk data, " + in.readableBytes() + " bytes left");
-            }
-
-            byte[] data = new byte[out.readableBytes()];
-            out.readBytes(data);
-            dataField.set(dataWrapper, data);
-
-            chunkData.set(packet, dataWrapper);
-            return packet;
-        };
+        return dataLengthAsLongCount;
     }
 
-    private static final Registry<BlockEntityType<?>> registry = Reflection.getField(BuiltInRegistries.class, "BLOCK_ENTITY_TYPE", Registry.class).get(null);
-    private static final Reflection.Method getKey = Reflection.getTypedMethod(Reflection.getClass("net.minecraft.core.Registry"), "getKey", ResourceLocation.class, Object.class);
-    public static final Class<?> tileEntity = Reflection.getClass("net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData$BlockEntityInfo");
-    protected static final Reflection.Field<BlockEntityType> entityType = Reflection.getField(tileEntity, BlockEntityType.class, 0);
+    private long[] readSectionDataFromBuffer(ByteBuf dataSource, short bitsPerEntry, int entryCount) {
+        int dataLengthAsLongCount = getLongsRequiredToEncodeEntries(bitsPerEntry, entryCount);
+        long[] dataArray = new long[dataLengthAsLongCount];
 
-    protected boolean tileEntityVisible(Set<String> hiddenBlockEntities, Object tile) {
-        BlockEntityType type = entityType.get(tile);
-        String path = ((ResourceLocation) getKey.invoke(registry, type)).getPath();
-        return !hiddenBlockEntities.contains(path);
-    }
-
-    private void blocks(SectionHider section) {
-        section.copyBitsPerBlock();
-
-        boolean singleValued = section.getBitsPerBlock() == 0;
-        if (singleValued) {
-            int value = ProtocolUtils.readVarInt(section.getIn());
-            ProtocolUtils.writeVarInt(section.getOut(), !section.isSkipSection() && section.getObfuscate().contains(value) ? section.getTarget() : value);
-            return;
-        } else if (section.getBitsPerBlock() < 9) {
-            // Indirect (paletted) storage – only present when bitsPerBlock < 9 in 1.21+
-            section.processPalette();
+        for (int i = 0; i < dataLengthAsLongCount; i++) {
+            dataArray[i] = dataSource.readLong();
         }
 
-        if (section.isSkipSection() || (!section.blockPrecise() && section.isPaletted())) {
-            section.skipNewDataArray(4096);
-            return;
+        return dataArray;
+    }
+
+    public ClientboundLevelChunkWithLightPacket processLevelChunkWithLightPacket(Player player, ClientboundLevelChunkWithLightPacket packet) {
+        int chunkX = packet.getX();
+        int chunkZ = packet.getZ();
+        ClientboundLevelChunkPacketData chunkData = packet.getChunkData();
+
+        ByteBuf in = Unpooled.wrappedBuffer(chunkData.getReadBuffer());
+        ByteBuf out = Unpooled.buffer(in.readableBytes() + 64);
+
+        int worldMinHeight = player.getWorld().getMinHeight();
+        int worldMaxHeight = player.getWorld().getMaxHeight();
+
+        for (int yOffset = worldMinHeight; yOffset < worldMaxHeight; yOffset += SECTION_SPAN_SIZE) {
+            short blockCount = in.readShort();
+
+            byte bitsPerBlock = in.readByte();
+
+            if (bitsPerBlock == 0) {
+                int sectionBlockId = ProtocolUtils.readVarInt(in);
+
+                out.writeShort(blockCount);
+                out.writeByte(bitsPerBlock);
+                ProtocolUtils.writeVarInt(out, sectionBlockId);
+            } else if (bitsPerBlock <= BIT_PER_BLOCK_INDIRECTION_LIMIT) {
+                int palletLength = ProtocolUtils.readVarInt(in);
+                int[] pallet = ProtocolUtils.readVarIntArray(in, palletLength);
+
+                long[] rawData = readSectionDataFromBuffer(in, bitsPerBlock, BLOCKS_PER_SECTION);
+                SimpleBitStorage data = new SimpleBitStorage(bitsPerBlock, BLOCKS_PER_SECTION, rawData);
+
+                int[] resolvedData = new int[BLOCKS_PER_SECTION];
+                for (int i = 0; i < BLOCKS_PER_SECTION; i++) {
+                    int palletReference = data.get(i);
+                    resolvedData[i] = pallet[palletReference];
+                }
+
+                int[] obfuscatedBlockData = obfuscateBlockDataArray(player, chunkX, chunkZ, yOffset, resolvedData);
+
+                long[] reEncodedData = encodeDirectBlockDataArray(obfuscatedBlockData);
+
+
+                out.writeShort(blockCount);
+                out.writeByte(15);
+                for (long rawDataSegment : reEncodedData) {
+                    out.writeLong(rawDataSegment);
+                }
+                /*
+                Int2IntMap blockIdToPalletIndex = new Int2IntOpenHashMap();
+                IntArrayList newPallet = new IntArrayList();
+
+                for(int blockId : obfuscatedData) {
+                    if(!blockIdToPalletIndex.containsKey(blockId)) {
+                        newPallet.add(blockId);
+                        blockIdToPalletIndex.put(blockId, newPallet.size());
+                    }
+                }
+
+                byte newBitsPerBlock = (byte) getUnsignedBitLength(newPallet.size());
+                int[] newPalletRaw = newPallet.toArray(new int[newPallet.size()]);
+
+                SimpleBitStorage reEncodedData = new SimpleBitStorage(bitsPerBlock, BLOCKS_PER_SECTION, new long[rawData.length]);
+                for(int i = 0; i < obfuscatedData.length; i++) {
+                    int blockId = obfuscatedData[i];
+                    int palletReference = blockIdToPalletIndex.get(blockId);
+
+                    reEncodedData.set(i, palletReference);
+                }
+
+                out.writeShort(blockCount);
+                out.writeByte(newBitsPerBlock);
+                ProtocolUtils.writeVarInt(out, palletLength);
+                ProtocolUtils.writeVarIntArray(out, newPalletRaw);
+                for(long rawDataSegment : reEncodedData.getRaw()) {
+                    out.writeLong(rawDataSegment);
+                }*/
+
+            } else {
+                long[] rawData = readSectionDataFromBuffer(in, bitsPerBlock, BLOCKS_PER_SECTION);
+
+                int[] blockData = resolveDirectBlockDataArray(rawData, bitsPerBlock);
+
+                int[] obfuscatedBlockData = obfuscateBlockDataArray(player, chunkX, chunkZ, yOffset, blockData);
+
+                long[] reEncodedData = encodeDirectBlockDataArray(obfuscatedBlockData);
+
+
+                out.writeShort(blockCount);
+                out.writeByte(15);
+                for (long rawDataSegment : reEncodedData) {
+                    out.writeLong(rawDataSegment);
+                }
+            }
+
+            copyOverSectionBiomeData(in, out);
         }
 
-        SimpleBitStorage values = new SimpleBitStorage(section.getBitsPerBlock(), 4096, section.readNewDataArray(4096));
+        if (in.readableBytes() != 0) {
+            return null;
+        }
 
-        for (int y = 0; y < 16; y++) {
-            for (int z = 0; z < 16; z++) {
-                for (int x = 0; x < 16; x++) {
-                    int pos = (((y * 16) + z) * 16) + x;
+        byte[] data = new byte[out.readableBytes()];
+        out.readBytes(data);
 
-                    TechHider.State test = section.test(x, y, z);
+        List<Object> blockEntities = chunkBlockEntitiesDataField.get(chunkData);
+        List<Object> filteredBlockEntities = filterBlockEntities(player, blockEntities, chunkX, chunkZ);
 
-                    switch (test) {
-                        case SKIP:
-                            break;
-                        case CHECK:
-                            if (!section.getObfuscate().contains(values.get(pos))) {
-                                break;
-                            }
-                        case HIDE:
-                            values.set(pos, section.getTarget());
-                            break;
-                        case HIDE_AIR:
-                        default:
-                            values.set(pos, section.getAir());
+        return buildNewChunkPacket(packet, data, filteredBlockEntities);
+
+    }
+
+    private int[] obfuscateBlockDataArray(Player player, int chunkX, int chunkZ, int yOffset, int[] blockDataArray) {
+        int[] obfuscatedData = new int[BLOCKS_PER_SECTION];
+        for (int sectionY = 0; sectionY < SECTION_SPAN_SIZE; sectionY++) {
+            for (int sectionZ = 0; sectionZ < SECTION_SPAN_SIZE; sectionZ++) {
+                for (int sectionX = 0; sectionX < SECTION_SPAN_SIZE; sectionX++) {
+                    int blockDataIndex = (((sectionY * SECTION_SPAN_SIZE) + sectionZ) * SECTION_SPAN_SIZE) + sectionX;
+
+                    int worldX = sectionX + (SECTION_SPAN_SIZE * chunkX);
+                    int worldY = sectionY + yOffset;
+                    int worldZ = sectionZ + (SECTION_SPAN_SIZE * chunkZ);
+
+                    int blockId = blockDataArray[blockDataIndex];
+                    BlockState blockState = Block.BLOCK_STATE_REGISTRY.byId(blockId);
+                    Block block = blockState.getBlock();
+
+
+                    if (accessPrivilegeProvider.isPlayerPrivilegedToAccessPosition(player, worldX, worldY, worldZ) && accessPrivilegeProvider.isPlayerPrivilegedToAccessBlock(player, worldX, worldY, worldZ, block) && accessPrivilegeProvider.isPlayerPrivilegedToAccessBlockState(player, worldX, worldY, worldZ, blockState)) {
+                        obfuscatedData[blockDataIndex] = blockId;
+                    } else {
+                        obfuscatedData[blockDataIndex] = blockIdUsedForHiding;
                     }
                 }
             }
         }
 
-        section.writeDataArray(values.getRaw());
+        return obfuscatedData;
     }
 
-    private void biomes(SectionHider section) {
-        section.copyBitsPerBlock();
-        if (section.getBitsPerBlock() == 0) {
-            section.copyVarInt();
-        } else if (section.getBitsPerBlock() < 6) {
-            section.skipPalette();
-            section.skipNewDataArray(64);
+    private int[] resolveDirectBlockDataArray(long[] rawDataArray, byte bitsPerBlock) {
+        SimpleBitStorage data = new SimpleBitStorage(bitsPerBlock, BLOCKS_PER_SECTION, rawDataArray);
+
+        int[] resolvedData = new int[BLOCKS_PER_SECTION];
+        for (int i = 0; i < BLOCKS_PER_SECTION; i++) {
+            resolvedData[i] = data.get(i);
+        }
+
+        return resolvedData;
+    }
+
+    private long[] encodeDirectBlockDataArray(int[] blockDataArray) {
+        int longsRequiredToEncodeData = getLongsRequiredToEncodeEntries(15, blockDataArray.length);
+
+        SimpleBitStorage reEncodedData = new SimpleBitStorage(15, BLOCKS_PER_SECTION, new long[longsRequiredToEncodeData]);
+        for (int i = 0; i < blockDataArray.length; i++) {
+            int blockId = blockDataArray[i];
+
+            reEncodedData.set(i, blockId);
+        }
+
+        return reEncodedData.getRaw();
+    }
+
+    private ClientboundLevelChunkWithLightPacket buildNewChunkPacket(ClientboundLevelChunkWithLightPacket originalPacket, byte[] newBlockDataBuffer, List<Object> newBlockEntities) {
+        ClientboundLevelChunkWithLightPacket clonedPacket = (ClientboundLevelChunkWithLightPacket) chunkPacketShallowCloner.apply(originalPacket);
+        ClientboundLevelChunkPacketData clonedPacketChunkData = (ClientboundLevelChunkPacketData) chunkDataShallowCloner.apply(originalPacket.getChunkData());
+
+        chunkBlockDataField.set(clonedPacketChunkData, newBlockDataBuffer);
+        chunkBlockEntitiesDataField.set(clonedPacketChunkData, newBlockEntities);
+
+        levelChunkPacketDataField.set(clonedPacket, clonedPacketChunkData);
+
+        return clonedPacket;
+    }
+
+
+    private static final Class<?> blockEntitiyInfoClass = Reflection.getClass("net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData$BlockEntityInfo");
+
+    private static final Reflection.Field<BlockEntityType> blockEntityInfoTypeField = Reflection.getField(blockEntitiyInfoClass, BlockEntityType.class, 0);
+    private static final Reflection.Field<Integer> packedXZField = Reflection.getField(blockEntitiyInfoClass, int.class, 0);
+    private static final Reflection.Field<Integer> yField = Reflection.getField(blockEntitiyInfoClass, int.class, 1);
+
+    private List<Object> filterBlockEntities(Player player, List<Object> blockEntities, int chunkX, int chunkZ) {
+        int fourBitBitmask = 0b0000_1111;
+
+        return blockEntities.stream()
+                .filter((blockEntityInfo) -> {
+                    BlockEntityType<?> type = blockEntityInfoTypeField.get(blockEntityInfo);
+
+                    int packedXZ = packedXZField.get(blockEntityInfo);
+
+                    int localX = (packedXZ >> 4) & fourBitBitmask;
+                    int localZ = packedXZ & fourBitBitmask;
+
+                    int worldX = (chunkX * SECTION_SPAN_SIZE) + localX;
+                    int worldZ = (chunkZ * SECTION_SPAN_SIZE) + localZ;
+
+                    int worldY = yField.get(blockEntityInfo);
+
+                    return accessPrivilegeProvider.isPlayerPrivilegedToAccessPosition(player, worldX, worldY, worldZ) && accessPrivilegeProvider.isPlayerPrivilegedToAccessBlockEntity(player, worldX, worldY, worldZ, type);
+                }).toList();
+    }
+
+    private void copyOverSectionBiomeData(ByteBuf oldData, ByteBuf newData) {
+        short bitsPerBiome = oldData.readByte();
+        newData.writeByte(bitsPerBiome);
+        if (bitsPerBiome == 0) {
+            int sectionBiomeId = ProtocolUtils.readVarInt(oldData);
+            ProtocolUtils.writeVarInt(newData, sectionBiomeId);
+        } else if (bitsPerBiome <= BIT_PER_BIOME_INDIRECTION_LIMIT) {
+            int palletLength = ProtocolUtils.readVarInt(oldData);
+            ProtocolUtils.writeVarInt(newData, palletLength);
+
+            for (int i = 0; i < palletLength; i++) {
+                int palletEntry = ProtocolUtils.readVarInt(oldData);
+                ProtocolUtils.writeVarInt(newData, palletEntry);
+            }
+
+            long[] rawData = readSectionDataFromBuffer(oldData, bitsPerBiome, BIOMES_PER_SECTION);
+            for (long rawDataSegment : rawData) {
+                newData.writeLong(rawDataSegment);
+            }
         } else {
-            // Direct (global) biome IDs – no palette present
-            section.skipNewDataArray(64);
-        }
-    }
-
-    @Getter
-    class SectionHider {
-        private final Player player;
-        private final TechHider techHider;
-        private final ByteBuf in;
-        private final ByteBuf out;
-
-        private final int chunkX;
-        private final int chunkY;
-        private final int chunkZ;
-        private final int offsetX;
-        private final int offsetY;
-        private final int offsetZ;
-
-        private final boolean skipSection;
-
-        private boolean paletted;
-        private int bitsPerBlock;
-        private int blockCount;
-        private int air;
-        private int target;
-        private Set<Integer> obfuscate;
-
-        public SectionHider(Player player, TechHider techHider, ByteBuf in, ByteBuf out, int chunkX, int chunkY, int chunkZ) {
-            this.player = player;
-            this.techHider = techHider;
-            this.in = in;
-            this.out = out;
-            this.chunkX = chunkX;
-            this.chunkY = chunkY;
-            this.chunkZ = chunkZ;
-            this.offsetX = 16 * chunkX;
-            this.offsetY = 16 * chunkY;
-            this.offsetZ = 16 * chunkZ;
-            this.skipSection = techHider.getLocationEvaluator().skipChunkSection(player, chunkX, chunkY, chunkZ);
-
-            this.paletted = false;
-            this.bitsPerBlock = 0;
-            this.air = TechHider.AIR_ID;
-            this.target = techHider.getObfuscationTargetId();
-            this.obfuscate = techHider.getObfuscateIds();
-        }
-
-        public boolean blockPrecise() {
-            return techHider.getLocationEvaluator().blockPrecise(player, chunkX, chunkY, chunkZ);
-        }
-
-        public TechHider.State test(int x, int y, int z) {
-            return techHider.getLocationEvaluator().check(player, offsetX + x, offsetY + y, offsetZ + z);
-        }
-
-        public void copyBlockCount() {
-            this.blockCount = in.readShort();
-            out.writeShort(blockCount);
-        }
-
-        public void copyBitsPerBlock() {
-            bitsPerBlock = in.readByte();
-            out.writeByte(bitsPerBlock);
-        }
-
-        public int copyVarInt() {
-            int value = ProtocolUtils.readVarInt(in);
-            ProtocolUtils.writeVarInt(out, value);
-            return value;
-        }
-
-        public void skipPalette() {
-            int paletteLength = copyVarInt();
-            for (int i = 0; i < paletteLength; i++) {
-                copyVarInt();
-            }
-        }
-
-        public void processPalette() {
-            if (skipSection) {
-                skipPalette();
-                return;
-            }
-
-            int paletteLength = copyVarInt();
-            if (paletteLength == 0) return;
-
-            paletted = true;
-            air = 0;
-            target = 0;
-
-            for (int i = 0; i < paletteLength; i++) {
-                int entry = ProtocolUtils.readVarInt(in);
-                if (obfuscate.contains(entry)) {
-                    entry = techHider.getObfuscationTargetId();
-                }
-
-                if (entry == TechHider.AIR_ID) {
-                    air = i;
-                } else if (entry == techHider.getObfuscationTargetId()) {
-                    target = i;
-                }
-
-                ProtocolUtils.writeVarInt(out, entry);
-            }
-            obfuscate = Collections.emptySet();
-        }
-
-        public void skipDataArray() {
-            int dataArrayLength = copyVarInt();
-            out.writeBytes(in, dataArrayLength * 8);
-        }
-
-        public void skipNewDataArray(int entries) {
-            if (bitsPerBlock == 0) {
-                return;
-            }
-
-            char valuesPerLong = (char) (64 / bitsPerBlock);
-            int i1 = (entries + valuesPerLong - 1) / valuesPerLong;
-            out.writeBytes(in, i1 * Long.BYTES);
-        }
-
-        public long[] readDataArray() {
-            long[] array = new long[copyVarInt()];
-            for (int i = 0; i < array.length; i++) {
-                array[i] = in.readLong();
-            }
-
-            return array;
-        }
-
-        public long[] readNewDataArray(int entries) {
-            if (bitsPerBlock == 0) {
-                return new long[entries];
-            }
-
-            char valuesPerLong = (char) (64 / bitsPerBlock);
-            int i1 = (entries + valuesPerLong - 1) / valuesPerLong;
-            long[] array = new long[i1];
-            for (int i = 0; i < i1; i++) {
-                array[i] = in.readLong();
-            }
-
-            return array;
-        }
-
-        public void writeDataArray(long[] array) {
-            for (long l : array) {
-                out.writeLong(l);
+            long[] rawData = readSectionDataFromBuffer(oldData, bitsPerBiome, BIOMES_PER_SECTION);
+            for (long rawDataSegment : rawData) {
+                newData.writeLong(rawDataSegment);
             }
         }
     }

SpigotCore/SpigotCore_Main/src/de/steamwar/techhider/ProtocolUtils.java

@@ -140,6 +140,16 @@ public class ProtocolUtils {
         return result;
     }
 
+    public static int[] readVarIntArray(ByteBuf buffer, int length) {
+        int[] array = new int[length];
+
+        for (int i = 0; i < length; i++) {
+            array[i] = readVarInt(buffer);
+        }
+
+        return array;
+    }
+
     public static void writeVarInt(ByteBuf buf, int value) {
         do {
             int temp = value & 0b01111111;
@@ -152,6 +162,12 @@ public class ProtocolUtils {
         } while (value != 0);
     }
 
+    public static void writeVarIntArray(ByteBuf buf, int[] values) {
+        for (int varInt : values) {
+            writeVarInt(buf, varInt);
+        }
+    }
+
     @Deprecated
     public static int readVarIntLength(byte[] array, int startPos) {
         int numRead = 0;

SpigotCore/SpigotCore_Main/src/de/steamwar/techhider/TechHider.java

@@ -1,7 +1,7 @@
 /*
  *   This file is a part of the SteamWar software.
  *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU Affero General Public License as published by
@@ -21,161 +21,529 @@ package de.steamwar.techhider;
 
 import com.comphenix.tinyprotocol.TinyProtocol;
 import de.steamwar.Reflection;
-import lombok.Getter;
+import it.unimi.dsi.fastutil.ints.IntArrayList;
+import it.unimi.dsi.fastutil.ints.IntList;
+import it.unimi.dsi.fastutil.shorts.ShortArraySet;
+import it.unimi.dsi.fastutil.shorts.ShortSets;
 import net.minecraft.core.BlockPos;
-import net.minecraft.core.Vec3i;
+import net.minecraft.core.SectionPos;
+import net.minecraft.network.PacketListener;
+import net.minecraft.network.protocol.Packet;
+import net.minecraft.network.protocol.common.*;
+import net.minecraft.network.protocol.configuration.ClientboundFinishConfigurationPacket;
+import net.minecraft.network.protocol.configuration.ClientboundRegistryDataPacket;
+import net.minecraft.network.protocol.configuration.ClientboundSelectKnownPacks;
+import net.minecraft.network.protocol.configuration.ClientboundUpdateEnabledFeaturesPacket;
+import net.minecraft.network.protocol.cookie.ClientboundCookieRequestPacket;
 import net.minecraft.network.protocol.game.*;
+import net.minecraft.network.protocol.login.*;
 import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.entity.BlockEntityType;
 import net.minecraft.world.level.block.state.BlockState;
-import org.bukkit.Material;
-import org.bukkit.craftbukkit.util.CraftMagicNumbers;
+import net.minecraft.world.phys.Vec3;
 import org.bukkit.entity.Player;
 
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Set;
+import java.util.*;
 import java.util.function.BiFunction;
 import java.util.function.Function;
-import java.util.function.UnaryOperator;
-import java.util.stream.Collectors;
+import java.util.function.ToIntFunction;
 
+/**
+ * The TechHider follows the default-deny security principle,
+ * any packet must be explicitly whitelisted or processed in a
+ * way that is also compliant with the principle of default-deny.
+ */
 public class TechHider {
+    private final Set<Class<?>> bypassingPackets;
+    private final Map<Class<? extends Packet<? extends PacketListener>>, BiFunction<Player, Packet<? extends PacketListener>, Packet<? extends PacketListener>>> packetProcessors;
 
-    public static final Class<?> blockPosition = BlockPos.class;
-    private static final Class<?> baseBlockPosition = Vec3i.class;
-    public static final Reflection.Field<Integer> blockPositionX = Reflection.getField(baseBlockPosition, int.class, 0);
-    public static final Reflection.Field<Integer> blockPositionY = Reflection.getField(baseBlockPosition, int.class, 1);
-    public static final Reflection.Field<Integer> blockPositionZ = Reflection.getField(baseBlockPosition, int.class, 2);
+    private final BlockState blockStateUsedForObfuscation;
+    private final ChunkHider chunkHider;
 
-    public static final Class<?> iBlockData = BlockState.class;
-    public static final Class<?> block = Block.class;
+    private final AccessPrivilegeProvider privilegeProvider;
 
-    public boolean iBlockDataHidden(BlockState iBlockData) {
-        return obfuscateIds.contains(BlockIds.impl.getCombinedId(iBlockData));
-    }
+    // TODO handle packet bundle
+    public TechHider(Block blockUsedForObfuscation, AccessPrivilegeProvider privilegeProvider) {
+        this.blockStateUsedForObfuscation = blockUsedForObfuscation.defaultBlockState();
 
-    public static final Object AIR = CraftMagicNumbers.getBlock(Material.AIR).defaultBlockState();
-    public static final int AIR_ID = BlockIds.impl.materialToId(Material.AIR);
+        this.chunkHider = new ChunkHider(blockUsedForObfuscation, privilegeProvider);
+        this.privilegeProvider = privilegeProvider;
 
-    private final Map<Class<?>, BiFunction<Player, Object, Object>> techhiders = new HashMap<>();
-    @Getter
-    private final LocationEvaluator locationEvaluator;
-    @Getter
-    private final Object obfuscationTarget;
-    @Getter
-    private final int obfuscationTargetId;
-    @Getter
-    private final Set<Integer> obfuscateIds;
-    @Getter
-    private final Set<String> hiddenBlockEntities;
+        this.bypassingPackets = new HashSet<>(List.of(
+                // --- 5.1.x Login Protocol ---
+                ClientboundLoginDisconnectPacket.class, // 5.1.1 Disconnect
+                ClientboundHelloPacket.class, // 5.1.2 Encryption Request
+                ClientboundLoginFinishedPacket.class, // 5.1.3 Login Success
+                ClientboundLoginCompressionPacket.class, // 5.1.4 Set Compression
+                ClientboundCustomQueryPacket.class, // 5.1.5 Login Plugin Request
+                ClientboundCookieRequestPacket.class, // 5.1.6 Cookie Request
 
-    public TechHider(LocationEvaluator locationEvaluator, Material obfuscationTarget, Set<Material> obfuscate, Set<String> hiddenBlockEntities) {
-        this.locationEvaluator = locationEvaluator;
-        this.obfuscateIds = obfuscate.stream().flatMap(m -> BlockIds.impl.materialToAllIds(m).stream()).collect(Collectors.toSet());
-        this.hiddenBlockEntities = hiddenBlockEntities;
-        this.obfuscationTarget = CraftMagicNumbers.getBlock(obfuscationTarget).defaultBlockState();
-        this.obfuscationTargetId = BlockIds.impl.materialToId(obfuscationTarget);
+                // --- 6.1.x Configuration Protocol ---
+                ClientboundSelectKnownPacks.class, ClientboundCustomPayloadPacket.class, // 6.1.2 Clientbound Plugin Message
+                ClientboundFinishConfigurationPacket.class, // 6.1.4 Finish Configuration
+                ClientboundKeepAlivePacket.class, // 6.1.5 Clientbound Keep Alive
+                ClientboundPingPacket.class, // 6.1.6 Ping
+                ClientboundRegistryDataPacket.class, // 6.1.8 Registry Data
+                ClientboundResourcePackPopPacket.class, // 6.1.9 Remove Resource Pack
+                ClientboundResourcePackPushPacket.class, // 6.1.10 Add Resource Pack
+                ClientboundStoreCookiePacket.class, // 6.1.11 Store Cookie
+                ClientboundTransferPacket.class, // 6.1.12 Transfer
+                ClientboundUpdateEnabledFeaturesPacket.class, // 6.1.13 Feature Flags
+                ClientboundCustomReportDetailsPacket.class, // 6.1.16 Custom Report Details
+                ClientboundServerLinksPacket.class, // 6.1.17 Server Links
+                ClientboundSystemChatPacket.class, // 6.1.18/19 Dialogs are often handled via System Chat or Custom
+                // Payloads
+                ClientboundServerDataPacket.class, // 6.1.20 Code of Conduct is usually in Server Data
 
-        techhiders.put(blockActionPacket, this::blockActionHider);
-        techhiders.put(blockChangePacket, this::blockChangeHider);
-        techhiders.put(tileEntityDataPacket, this::tileEntityDataHider);
-        techhiders.put(multiBlockChangePacket, ProtocolWrapper.impl.multiBlockChangeGenerator(this));
-        techhiders.put(ChunkHider.impl.mapChunkPacket(), ChunkHider.impl.chunkHiderGenerator(this));
-        techhiders.put(ServerboundUseItemOnPacket.class, (p, packet) -> locationEvaluator.suppressInteractions(p) ? null : packet);
-        techhiders.put(ServerboundInteractPacket.class, (p, packet) -> locationEvaluator.suppressInteractions(p) ? null : packet);
+                // --- 7.1.x Play Protocol ---
 
-    }
+                // --- Safe packets; Not involved with a critical subdomain ---
+                ClientboundBundleDelimiterPacket.class, // 7.1.1 Bundle Delimiter
+                ClientboundBossEventPacket.class, // 7.1.10 Boss Bar
+                ClientboundChangeDifficultyPacket.class, // 7.1.11 Change Difficulty
+                ClientboundClearTitlesPacket.class, // 7.1.15 Clear Titles
+                ClientboundCommandSuggestionsPacket.class, // 7.1.16 Command Suggestions Response
+                ClientboundCommandsPacket.class, // 7.1.17 Commands
+                ClientboundCookieRequestPacket.class, // 7.1.22 Cookie Request (play)
+                ClientboundCooldownPacket.class, // 7.1.23 Set Cooldown
+                ClientboundCustomChatCompletionsPacket.class, // 7.1.24 Chat Suggestions
+                ClientboundDeleteChatPacket.class, // 7.1.32 Delete Message
+                ClientboundDisconnectPacket.class, // 7.1.33 Disconnect (play)
+                ClientboundDisguisedChatPacket.class, // 7.1.34 Disguised Chat Message
+                ClientboundGameEventPacket.class, // 7.1.39 Game Event (like ElderGuardian effect, rain, thunder, etc.)
+                ClientboundHorseScreenOpenPacket.class, // 7.1.41 Open Horse Screen: entity id based container.
+                ClientboundInitializeBorderPacket.class, // 7.1.43 Initialize World Border
+                ClientboundKeepAlivePacket.class, // 7.1.44 Clientbound Keep Alive (play)
+                ClientboundLoginPacket.class, // 7.1.49 Login (play)
+                ClientboundMerchantOffersPacket.class, // 7.1.51 Merchant Offers
+                ClientboundOpenBookPacket.class, // 7.1.57 Open Book
+                ClientboundOpenScreenPacket.class, // 7.1.58 Open Screen
+                ClientboundPingPacket.class, // 7.1.60 Ping (play)
+                ClientboundPlaceGhostRecipePacket.class, // 7.1.62 Place Ghost Recipe
+                ClientboundPlayerAbilitiesPacket.class, // 7.1.63 Player Abilities (clientbound)
+                ClientboundPlayerChatPacket.class, // 7.1.64 Player Chat Message
+                ClientboundPlayerCombatEndPacket.class, // 7.1.65 End Combat
+                ClientboundPlayerCombatEnterPacket.class, // 7.1.66 Enter Combat
+                ClientboundPlayerLookAtPacket.class, // 7.1.70 Look At (Player owning channel)
+                ClientboundPlayerPositionPacket.class, // 7.1.71 Synchronize Player Position (Player owning the channel)
+                ClientboundPlayerRotationPacket.class, // 7.1.72 Player Rotation (Player owning the channel)
+                ClientboundRecipeBookAddPacket.class, // 7.1.73 Recipe Book Add
+                ClientboundRecipeBookRemovePacket.class, // 7.1.74 Recipe Book Remove
+                ClientboundRecipeBookSettingsPacket.class, // 7.1.75 Recipe Book Settings
+                ClientboundResetScorePacket.class, // 7.1.78 Reset Score
+                ClientboundResourcePackPopPacket.class, // 7.1.79 Remove Resource Pack (play)
+                ClientboundResourcePackPushPacket.class, // 7.1.80 Add Resource Pack (play)
+                ClientboundRespawnPacket.class, // 7.1.81 Respawn
+                ClientboundSelectAdvancementsTabPacket.class, // 7.1.84 Select Advancements Tab
+                ClientboundServerDataPacket.class, // 7.1.85 Server Data
+                ClientboundSetActionBarTextPacket.class, // 7.1.86 Set Action Bar Text
+                ClientboundSetBorderCenterPacket.class, // 7.1.87 Set Border Center
+                ClientboundSetBorderLerpSizePacket.class, // 7.1.88 Set Border Lerp Size
+                ClientboundSetBorderSizePacket.class, // 7.1.89 Set Border Size
+                ClientboundSetBorderWarningDelayPacket.class, // 7.1.90 Set Border Warning Delay
+                ClientboundSetBorderWarningDistancePacket.class, // 7.1.91 Set Border Warning Distance
+                ClientboundSetCameraPacket.class, // 7.1.92 Set Camera
+                ClientboundSetChunkCacheRadiusPacket.class, // 7.1.94 Set Render Distance
+                ClientboundSetCursorItemPacket.class, // 7.1.95 Set Cursor Item
+                ClientboundSetDefaultSpawnPositionPacket.class, // 7.1.96 Set Default Spawn Position
+                ClientboundSetDisplayObjectivePacket.class, // 7.1.97 Display Objective
+                ClientboundSetExperiencePacket.class, // 7.1.102 Set Experience
+                ClientboundSetHealthPacket.class, // 7.1.103 Set Health, Saturation and food (Player owning the channel)
+                ClientboundSetHeldSlotPacket.class, // 7.1.104 Set Held Item (Player owning the channel)
+                ClientboundSetObjectivePacket.class, // 7.1.105 Update Objectives
+                ClientboundSetPlayerInventoryPacket.class, // 7.1.107 Set Player Inventory Slot (Player owning the channel)
+                // ClientboundSetPlayerTeamPacket.class, // 7.1.108 Update Teams
+                ClientboundSetScorePacket.class, // 7.1.109 Update Score
+                ClientboundSetSimulationDistancePacket.class, // 7.1.110 Set Simulation Distance
+                ClientboundSetSubtitleTextPacket.class, // 7.1.111 Set Subtitle Text
+                ClientboundSetTimePacket.class, // 7.1.112 Update Time
+                ClientboundSetTitleTextPacket.class, // 7.1.113 Set Title Text
+                ClientboundSetTitlesAnimationPacket.class, // 7.1.114 Set Title Animation Times
+                ClientboundStartConfigurationPacket.class, // 7.1.117 Start Configuration
+                ClientboundStoreCookiePacket.class, // 7.1.119 Store Cookie (play)
+                ClientboundSystemChatPacket.class, // 7.1.120 System Chat Message
+                ClientboundTabListPacket.class, // 7.1.121 Set Tab List Header And Footer
+                ClientboundTickingStatePacket.class, // 7.1.126 Set Ticking State
+                ClientboundTickingStepPacket.class, // 7.1.127 Step Tick
+                ClientboundTransferPacket.class, // 7.1.128 Transfer (play)
+                ClientboundUpdateAdvancementsPacket.class, // 7.1.129 Update Advancements
+                ClientboundUpdateRecipesPacket.class, // 7.1.132 Update Recipes
+                ClientboundCustomReportDetailsPacket.class, // 7.1.135 Custom Report Details
+                ClientboundServerLinksPacket.class, // 7.1.136 Server Links
+                ClientboundClearDialogPacket.class, // 7.1.138 Clear Dialog (play)
+                ClientboundShowDialogPacket.class, // 7.1.139 Show Dialog (play)
 
-    public void enable() {
-        techhiders.forEach(TinyProtocol.instance::addFilter);
-    }
+                // --- Mostly safe packets; Are involved with critical subdomain, but in not critical way ---
+                ClientboundBlockChangedAckPacket.class, // 7.1.5 Acknowledge Block Change
+                ClientboundChunkBatchFinishedPacket.class, // 7.1.12 Chunk Batch Finished (Delimiter)
+                ClientboundChunkBatchStartPacket.class, // 7.1.13 Chunk Batch Start (Delimiter)
+                ClientboundChunksBiomesPacket.class, // 7.1.14 Chunk Biomes
+                ClientboundContainerClosePacket.class, // 7.1.18 Close Container
+                ClientboundSetChunkCacheCenterPacket.class, // 7.1.93 Set Center Chunk
+                ClientboundForgetLevelChunkPacket.class, // 7.1.38 Unload Chunk
+                ClientboundUpdateTagsPacket.class, // 7.1.133 Update Tags (play)
+                ClientboundPlayerInfoRemovePacket.class, // 7.1.68 Player Info Remove
+                ClientboundPlayerInfoUpdatePacket.class, // 7.1.69 Player Info Update
+                ClientboundMoveVehiclePacket.class, // 7.1.56 Move Vehicle (vehicle the player is in)
+                ClientboundStopSoundPacket.class, // 7.1.118 Stop Sound: sound state side channel
 
-    public void disable() {
-        techhiders.forEach(TinyProtocol.instance::removeFilter);
-    }
+                ClientboundLightUpdatePacket.class, // 7.1.48 Update Light
 
-    public static final Class<?> multiBlockChangePacket = ClientboundSectionBlocksUpdatePacket.class;
-    public static final UnaryOperator<Object> multiBlockChangeCloner = ProtocolUtils.shallowCloneGenerator(TechHider.multiBlockChangePacket);
+                ClientboundContainerSetContentPacket.class, // 7.1.19 Set Container Content
+                ClientboundContainerSetDataPacket.class, // 7.1.20 Set Container Property
+                ClientboundContainerSetSlotPacket.class // 7.1.21 Set Container Slot
+        ));
 
-    private static final Class<?> blockChangePacket = ClientboundBlockUpdatePacket.class;
-    private static final Function<Object, Object> blockChangeCloner = ProtocolUtils.shallowCloneGenerator(blockChangePacket);
-    private static final Reflection.Field<?> blockChangePosition = Reflection.getField(blockChangePacket, blockPosition, 0);
-    private static final Reflection.Field<?> blockChangeBlockData = Reflection.getField(blockChangePacket, iBlockData, 0);
+        BiFunction<Player, Packet<? extends PacketListener>, Packet<? extends PacketListener>> tossPacket = (p, packet) -> null;
+        Map<Class<? extends Packet<? extends PacketListener>>, BiFunction<Player, Packet<? extends PacketListener>, Packet<? extends PacketListener>>> processors = new HashMap<>();
 
-    private Object blockChangeHider(Player p, Object packet) {
-        switch (locationEvaluator.checkBlockPos(p, blockChangePosition.get(packet))) {
-            case SKIP:
-                return packet;
-            case CHECK:
-                if (!iBlockDataHidden((BlockState) blockChangeBlockData.get(packet))) {
-                    return packet;
+        // --- Entity packets -
+        // 7.1.2 Spawn Entity: entity type and position can reveal hidden contraptions.
+        processors.put(ClientboundAddEntityPacket.class, (p, packet) -> this.processAddEntityPacket(p, (ClientboundAddEntityPacket) packet));
+        // 7.1.3 Entity Animation: entity id based signal, keep blocked until entity visibility is modeled.
+        processors.put(ClientboundAnimatePacket.class, this.buildEntityPacketProcessor(ClientboundAnimatePacket::getId));
+        // 7.1.35 Entity Event: entity id based signal.
+        processors.put(ClientboundEntityEventPacket.class, this.buildEntityPacketProcessor(ClientboundEntityEventPacket::getEventId));
+        // 7.1.36 Teleport Entity: entity id and absolute position.
+        processors.put(ClientboundTeleportEntityPacket.class, this.buildEntityPacketProcessor(ClientboundTeleportEntityPacket::id));
+        // 7.1.42 Hurt Animation: entity id based signal.
+        processors.put(ClientboundHurtAnimationPacket.class, this.buildEntityPacketProcessor(ClientboundHurtAnimationPacket::id));
+        // 7.1.100 Set Entity Velocity: entity id and movement.
+        processors.put(ClientboundSetEntityMotionPacket.class, this.buildEntityPacketProcessor(ClientboundSetEntityMotionPacket::getId));
+        // 7.1.101 Set Equipment: entity equipment can reveal wargear.
+        processors.put(ClientboundSetEquipmentPacket.class, this.buildEntityPacketProcessor(ClientboundSetEquipmentPacket::getEntity));
+        // 7.1.106 Set Passengers: entity relationship signal.
+        processors.put(ClientboundSetPassengersPacket.class, this.buildEntityPacketProcessor(ClientboundSetPassengersPacket::getVehicle));
+        // 7.1.130 Update Attributes: entity id and attribute state.
+        processors.put(ClientboundUpdateAttributesPacket.class, this.buildEntityPacketProcessor(ClientboundUpdateAttributesPacket::getEntityId));
+        // 7.1.131 Entity Effect: entity id and effect state.
+        processors.put(ClientboundUpdateMobEffectPacket.class, this.buildEntityPacketProcessor(ClientboundUpdateMobEffectPacket::getEntityId));
+        // 7.1.77 Remove Entity Effect: entity id and effect state.
+        processors.put(ClientboundRemoveMobEffectPacket.class, this.buildEntityPacketProcessor(ClientboundRemoveMobEffectPacket::entityId));
+        // 7.1.98 Set Entity Metadata: entity state can reveal blocks/items/displays.
+        processors.put(ClientboundSetEntityDataPacket.class, this.buildEntityPacketProcessor(ClientboundSetEntityDataPacket::id));
+        // 7.1.26 Damage Event: entity ids and damage source location can leak hide activity.
+        processors.put(ClientboundDamageEventPacket.class, this.buildEntityPacketProcessor(ClientboundDamageEventPacket::entityId));
+        // 7.1.54 Move Minecart Along Track: entity path and position signal.
+        processors.put(ClientboundMoveMinecartPacket.class, this.buildEntityPacketProcessor(ClientboundMoveMinecartPacket::entityId));
+        // 7.1.124 Synchronize Vehicle Position: entity/vehicle position.
+        processors.put(ClientboundEntityPositionSyncPacket.class, this.buildEntityPacketProcessor(ClientboundEntityPositionSyncPacket::id));
+        // 7.1.134 Projectile Power: projectile/entity signal.
+        processors.put(ClientboundProjectilePowerPacket.class, this.buildEntityPacketProcessor(ClientboundProjectilePowerPacket::getId));
+        // 7.1.123 Pickup Item: item/entity ids and pickup activity.
+        processors.put(ClientboundTakeItemEntityPacket.class, this.buildEntityPacketProcessor(ClientboundTakeItemEntityPacket::getItemId));
+        // 7.1.67 Combat Death: entity/player ids and death message context.
+        processors.put(ClientboundPlayerCombatKillPacket.class, this.buildEntityPacketProcessor(ClientboundPlayerCombatKillPacket::playerId));
+        // 7.1.52/53/55 Update Entity Position/Rotation: entity id and movement signal.
+        processors.put(ClientboundMoveEntityPacket.class, (p, packet) -> this.processMoveEntityPacket(p, (ClientboundMoveEntityPacket) packet));
+        processors.put(ClientboundMoveEntityPacket.Pos.class, (p, packet) -> this.processMoveEntityPacket(p, (ClientboundMoveEntityPacket.Pos) packet));
+        processors.put(ClientboundMoveEntityPacket.Rot.class, (p, packet) -> this.processMoveEntityPacket(p, (ClientboundMoveEntityPacket.Rot) packet));
+        processors.put(ClientboundMoveEntityPacket.PosRot.class, (p, packet) -> this.processMoveEntityPacket(p, (ClientboundMoveEntityPacket.PosRot) packet));
+
+        // 7.1.82 Set Head Rotation: entity id and rotation.
+        processors.put(ClientboundRotateHeadPacket.class, (p, packet) -> this.processRotateHeadPacket(p, (ClientboundRotateHeadPacket) packet));
+        // 7.1.76 Remove Entities: entity id visibility side channel.
+        processors.put(ClientboundRemoveEntitiesPacket.class, (p, packet) -> this.processRemoveEntitiesPacket(p, (ClientboundRemoveEntitiesPacket) packet));
+        // 7.1.99 Link Entities: entity relationship signal.
+        processors.put(ClientboundSetEntityLinkPacket.class, (p, packet) -> this.processSetEntityLinkPacket(p, (ClientboundSetEntityLinkPacket) packet));
+
+        // --- Block entity packets ---
+        // 7.1.7 Block Entity Data: currently filtered by block position and allowed tile-entity actions.
+        processors.put(ClientboundBlockEntityDataPacket.class, (p, packet) -> processBlockEntityDataPacket(p, (ClientboundBlockEntityDataPacket) packet));
+        // 7.1.122 Tag Query Response: block-entity query result.
+        processors.put(ClientboundTagQueryPacket.class, tossPacket);
+
+        // --- Block packets ---
+        // 7.1.6 Set Block Destroy Stage: block position and mining progress can reveal activity.
+        processors.put(ClientboundBlockDestructionPacket.class, (p, packet) -> proccessBlockDestructionPacket(p, (ClientboundBlockDestructionPacket) packet));
+        // 7.1.8 Block Action: currently filtered by block position.
+        processors.put(ClientboundBlockEventPacket.class, (p, packet) -> processBlockEventPacket(p, (ClientboundBlockEventPacket) packet));
+        // 7.1.9 Block Update: currently filtered/obfuscated by block position and block id.
+        processors.put(ClientboundBlockUpdatePacket.class, (p, packet) -> processBlockUpdatePacket(p, (ClientboundBlockUpdatePacket) packet));
+
+        // --- Chunk packets ---
+        // 7.1.45 Chunk Data and Update Light: currently filtered/obfuscated by chunk data processor.
+        processors.put(ClientboundLevelChunkWithLightPacket.class, (p, packet) -> processChunkWithLight(p, (ClientboundLevelChunkWithLightPacket) packet));
+
+        // --- Section packets ---
+        // 7.1.83 Update Section Blocks: currently filtered/obfuscated by section block processor.
+        processors.put(ClientboundSectionBlocksUpdatePacket.class, (p, packet) -> processSectionUpdate(p, (ClientboundSectionBlocksUpdatePacket) packet));
+
+        // --- Particle packets ---
+        // 7.1.47 Particle: particle type and position can reveal hidden machinery.
+        processors.put(ClientboundLevelParticlesPacket.class, (p, packet) -> processLevelParticlesPacket(p, (ClientboundLevelParticlesPacket) packet));
+
+        // --- Sound packets ---
+        // 7.1.115 Entity Sound Effect: entity id and sound.
+        processors.put(ClientboundSoundEntityPacket.class, this.buildEntityPacketProcessor(ClientboundSoundEntityPacket::getId));
+        // 7.1.116 Sound Effect: sound type and position.
+        processors.put(ClientboundSoundPacket.class, this.<ClientboundSoundPacket>buildPositionBasedPacketProcessor(packet -> {
+            return new BlockPos.MutableBlockPos(packet.getX(), packet.getY(), packet.getZ()).immutable();
+        }));
+
+        // --- Others ---
+        // 7.1.137 Waypoint: world/entity tracking signal.
+        processors.put(ClientboundTrackedWaypointPacket.class, tossPacket);
+        // 7.1.50 Map Data: map pixels/icons can reveal player/world state.
+        processors.put(ClientboundMapItemDataPacket.class, tossPacket);
+        // 7.1.46 World Event: block position/event id can leak activity.
+        processors.put(ClientboundLevelEventPacket.class, buildPositionBasedPacketProcessor(ClientboundLevelEventPacket::getPos));
+        // 7.1.59 Open Sign Editor: block position.
+        processors.put(ClientboundOpenSignEditorPacket.class, buildPositionBasedPacketProcessor(ClientboundOpenSignEditorPacket::getPos));
+        // 7.1.37 Explosion: position, affected blocks, and knockback can reveal TNT/tech.
+        processors.put(ClientboundExplodePacket.class, (p, rawPacket) -> {
+            ClientboundExplodePacket packet = (ClientboundExplodePacket) rawPacket;
+            Vec3 pos = packet.center();
+            int blockX = (int) pos.x;
+            int blockY = (int) pos.y;
+            int blockZ = (int) pos.z;
+
+
+            return proccessPositionBasedPacket(p, blockX, blockY, blockZ, packet);
+        });
+
+        this.packetProcessors = processors;
+
+        TinyProtocol.instance.addGlobalClientboundFilter((player, rawPacket) -> {
+            try {
+                if (rawPacket instanceof ClientboundBundlePacket bundlePacket) {
+                    List<Packet<? super ClientGamePacketListener>> processedPackets = new ArrayList<>();
+
+                    for (Packet<? super ClientGamePacketListener> packet : bundlePacket.subPackets()) {
+                        Packet<? super ClientGamePacketListener> processedPacket = (Packet<? super ClientGamePacketListener>) processPacket(player, packet);
+
+                        if (processedPacket != null) {
+                            processedPackets.add(processedPacket);
+                        }
+                    }
+
+                    return new ClientboundBundlePacket(processedPackets);
+                } else {
+                    return processPacket(player, rawPacket);
                 }
-            case HIDE:
-                packet = blockChangeCloner.apply(packet);
-                blockChangeBlockData.set(packet, obfuscationTarget);
-                return packet;
-            case HIDE_AIR:
-            default:
-                packet = blockChangeCloner.apply(packet);
-                blockChangeBlockData.set(packet, AIR);
-                return packet;
-        }
-    }
-
-    private static final Class<?> blockActionPacket = ClientboundBlockEventPacket.class;
-    private static final Reflection.Field<?> blockActionPosition = Reflection.getField(blockActionPacket, blockPosition, 0);
-
-    private Object blockActionHider(Player p, Object packet) {
-        if (locationEvaluator.checkBlockPos(p, blockActionPosition.get(packet)) == State.SKIP) {
-            return packet;
-        }
-        return null;
-    }
-
-    public static final Class<?> tileEntityDataPacket = ClientboundBlockEntityDataPacket.class;
-    private static final Reflection.Field<?> tileEntityDataPosition = Reflection.getField(tileEntityDataPacket, blockPosition, 0);
-
-    private Object tileEntityDataHider(Player p, Object packet) {
-        switch (locationEvaluator.checkBlockPos(p, tileEntityDataPosition.get(packet))) {
-            case SKIP:
-                return packet;
-            case CHECK:
-                if (ProtocolWrapper.impl.unfilteredTileEntityDataAction(packet)) {
-                    return packet;
-                }
-            default:
+            } catch (Throwable t) {
+                t.printStackTrace();
                 return null;
+            }
+        });
+
+        TinyProtocol.instance.addFilter(ServerboundUseItemOnPacket.class, (p, packet) -> privilegeProvider.isPlayerPrivilegedToPerformAction(p) ? packet : null);
+        TinyProtocol.instance.addFilter(ServerboundInteractPacket.class, (p, packet) -> privilegeProvider.isPlayerPrivilegedToPerformAction(p) ? packet : null);
+    }
+
+    private Packet<?> processPacket(Player player, Packet<?> packet) {
+        if (bypassingPackets.contains(packet.getClass())) {
+            return packet;
+        } else if (packetProcessors.containsKey(packet.getClass())) {
+            return packetProcessors.get(packet.getClass()).apply(player, packet);
+        } else {
+            return null;
         }
     }
 
-    public enum State {
-        SKIP,
-        CHECK,
-        HIDE,
-        HIDE_AIR
+    private Packet<? extends PacketListener> processAddEntityPacket(Player player, ClientboundAddEntityPacket packet) {
+        if (privilegeProvider.isPlayerPrivilegedToAccessEntity(player, packet.getId()) && privilegeProvider.isPlayerPrivilegedToAccessPosition(player, (int) packet.getX(), (int) packet.getY(), (int) packet.getZ())) {
+            return packet;
+        } else {
+            return null;
+        }
     }
 
-    public interface LocationEvaluator {
-        default boolean suppressInteractions(Player player) {
-            return false;
+    private Packet<? extends PacketListener> processEntityPacket(Player player, int entityId, Packet<? extends PacketListener> packet) {
+        if (privilegeProvider.isPlayerPrivilegedToAccessEntity(player, entityId)) {
+            return packet;
+        } else {
+            return null;
+        }
+    }
+
+    private <TTargetPacket extends Packet<?>> BiFunction<Player, Packet<? extends PacketListener>, Packet<? extends PacketListener>> buildEntityPacketProcessor(ToIntFunction<TTargetPacket> entityIdExtractor) {
+        return (p, rawPacket) -> {
+            TTargetPacket packet = (TTargetPacket) rawPacket;
+            return processEntityPacket(p, entityIdExtractor.applyAsInt(packet), packet);
+        };
+    }
+
+    private final Reflection.Field<Integer> moveEntityPacketEntityIdField = Reflection.getField(ClientboundMoveEntityPacket.class, int.class, 0);
+
+    private Packet<?> processMoveEntityPacket(Player player, ClientboundMoveEntityPacket packet) {
+        int entityId = moveEntityPacketEntityIdField.get(packet);
+
+        if (privilegeProvider.isPlayerPrivilegedToAccessEntity(player, entityId)) {
+            return packet;
+        } else {
+            return null;
+        }
+    }
+
+    private final Reflection.Field<Integer> rotateHeadPacketEntityIdField = Reflection.getField(ClientboundRotateHeadPacket.class, int.class, 0);
+
+    private Packet<?> processRotateHeadPacket(Player player, ClientboundRotateHeadPacket packet) {
+        int entityId = rotateHeadPacketEntityIdField.get(packet);
+
+        if (privilegeProvider.isPlayerPrivilegedToAccessEntity(player, entityId)) {
+            return packet;
+        } else {
+            return null;
+        }
+    }
+
+    private Packet<?> processRemoveEntitiesPacket(Player player, ClientboundRemoveEntitiesPacket packet) {
+        IntList entityIdsToRemove = packet.getEntityIds();
+
+        IntList filteredEntitiesToRemove = entityIdsToRemove.intStream().filter((id) -> privilegeProvider.isPlayerPrivilegedToAccessEntity(player, id)).collect(IntArrayList::new, IntList::add, IntList::addAll);
+
+        return new ClientboundRemoveEntitiesPacket(filteredEntitiesToRemove);
+    }
+
+    public Packet<?> processSetEntityLinkPacket(Player player, ClientboundSetEntityLinkPacket packet) {
+        int fromEntityId = packet.getSourceId();
+        int toEntityId = packet.getDestId();
+
+        if (privilegeProvider.isPlayerPrivilegedToAccessEntity(player, fromEntityId) && privilegeProvider.isPlayerPrivilegedToAccessEntity(player, toEntityId)) {
+            return packet;
+        } else {
+            return null;
+        }
+    }
+
+    private Packet<?> processBlockEventPacket(Player player, ClientboundBlockEventPacket packet) {
+        BlockPos blockPos = packet.getPos();
+        Block block = packet.getBlock();
+        int blockX = blockPos.getX();
+        int blockY = blockPos.getY();
+        int blockZ = blockPos.getZ();
+
+        if (privilegeProvider.isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ) && privilegeProvider.isPlayerPrivilegedToAccessBlock(player, blockX, blockY, blockZ, block)) {
+            return packet;
+        } else {
+            return null;
+        }
+    }
+
+    private Packet<?> processBlockUpdatePacket(Player player, ClientboundBlockUpdatePacket packet) {
+        BlockPos blockPos = packet.getPos();
+        BlockState blockState = packet.getBlockState();
+        Block block = blockState.getBlock();
+        int blockX = blockPos.getX();
+        int blockY = blockPos.getY();
+        int blockZ = blockPos.getZ();
+
+        if (privilegeProvider.isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ) && privilegeProvider.isPlayerPrivilegedToAccessBlock(player, blockX, blockY, blockZ, block) && privilegeProvider.isPlayerPrivilegedToAccessBlockState(player, blockX, blockY, blockZ, blockState)) {
+            return packet;
+        } else if (privilegeProvider.isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ)) {
+            return new ClientboundBlockUpdatePacket(blockPos, blockStateUsedForObfuscation);
+        } else {
+            return null;
+        }
+    }
+
+    private Packet<?> processBlockEntityDataPacket(Player player, ClientboundBlockEntityDataPacket packet) {
+        BlockPos blockPos = packet.getPos();
+        BlockEntityType<?> blockEntityType = packet.getType();
+        int blockX = blockPos.getX();
+        int blockY = blockPos.getY();
+        int blockZ = blockPos.getZ();
+
+        if (privilegeProvider.isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ) && privilegeProvider.isPlayerPrivilegedToAccessBlockEntity(player, blockX, blockY, blockZ, blockEntityType)) {
+            return packet;
+        } else {
+            return null;
+        }
+    }
+
+    private Packet<?> proccessBlockDestructionPacket(Player player, ClientboundBlockDestructionPacket packet) {
+        BlockPos blockPos = packet.getPos();
+        int entityBreakingBlockId = packet.getId();
+
+        if (privilegeProvider.isPlayerPrivilegedToAccessEntity(player, entityBreakingBlockId) && privilegeProvider.isPlayerPrivilegedToAccessPosition(player, blockPos.getX(), blockPos.getY(), blockPos.getZ())) {
+            return packet;
+        } else {
+            return null;
+        }
+    }
+
+    private final Reflection.Field<SectionPos> sectionPosField = Reflection.getField(ClientboundSectionBlocksUpdatePacket.class, SectionPos.class, 0);
+    private final Reflection.Field<short[]> oldPosField = Reflection.getField(ClientboundSectionBlocksUpdatePacket.class, short[].class, 0);
+    private final Reflection.Field<BlockState[]> oldStatesField = Reflection.getField(ClientboundSectionBlocksUpdatePacket.class, BlockState[].class, 0);
+
+    private ClientboundSectionBlocksUpdatePacket processSectionUpdate(Player p, ClientboundSectionBlocksUpdatePacket packet) {
+        SectionPos sectionPos = sectionPosField.get(packet);
+        short[] oldPos = oldPosField.get(packet);
+        BlockState[] oldStates = oldStatesField.get(packet);
+
+        List<Short> filteredPos = new ArrayList<>(oldPos.length);
+        List<BlockState> filteredStates = new ArrayList<>(oldStates.length);
+
+        for (int i = 0; i < oldPos.length; i++) {
+            short posShort = oldPos[i];
+            BlockState state = oldStates[i];
+            Block block = state.getBlock();
+
+            int worldX = sectionPos.relativeToBlockX(posShort);
+            int worldY = sectionPos.relativeToBlockY(posShort);
+            int worldZ = sectionPos.relativeToBlockZ(posShort);
+
+            if (privilegeProvider.isPlayerPrivilegedToAccessPosition(p, worldX, worldY, worldZ) && privilegeProvider.isPlayerPrivilegedToAccessBlock(p, worldX, worldY, worldZ, block) && privilegeProvider.isPlayerPrivilegedToAccessBlockState(p, worldX, worldY, worldZ, state)) {
+                filteredPos.add(posShort);
+                filteredStates.add(state);
+            } else if (privilegeProvider.isPlayerPrivilegedToAccessPosition(p, worldX, worldY, worldZ)) {
+                filteredPos.add(posShort);
+                filteredStates.add(blockStateUsedForObfuscation);
+            }
         }
 
-        boolean skipChunk(Player player, int x, int z);
-
-        default boolean skipChunkSection(Player player, int x, int y, int z) {
-            return skipChunk(player, x, z);
+        if (filteredStates.isEmpty()) {
+            return null;
         }
 
-        default State check(Player player, int x, int y, int z) {
-            return skipChunkSection(player, ProtocolUtils.posToChunk(x), ProtocolUtils.posToChunk(y), ProtocolUtils.posToChunk(z)) ? State.SKIP : State.CHECK;
+        short[] newPos = new short[filteredPos.size()];
+        for (int i = 0; i < newPos.length; i++) {
+            newPos[i] = filteredPos.get(i);
         }
 
-        default State checkBlockPos(Player player, Object pos) {
-            return check(player, blockPositionX.get(pos), blockPositionY.get(pos), blockPositionZ.get(pos));
-        }
+        BlockState[] newStates = filteredStates.toArray(new BlockState[0]);
 
-        default boolean blockPrecise(Player player, int x, int y, int z) {
-            return false;
+        return new ClientboundSectionBlocksUpdatePacket(sectionPos, ShortSets.unmodifiable(new ShortArraySet(newPos)), newStates);
+    }
+
+    private Packet<?> processLevelParticlesPacket(Player player, ClientboundLevelParticlesPacket packet) {
+        int blockX = (int) packet.getX();
+        int blockY = (int) packet.getY();
+        int blockZ = (int) packet.getZ();
+
+        if (privilegeProvider.isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ)) {
+            return packet;
+        } else {
+            return null;
         }
     }
+
+    private ClientboundLevelChunkWithLightPacket processChunkWithLight(Player p, ClientboundLevelChunkWithLightPacket packet) {
+        if (privilegeProvider.isEveryonePrivilegedToAccessAllDataWithinChunk(packet.getX(), packet.getZ())) {
+            return packet;
+        } else {
+            return chunkHider.processLevelChunkWithLightPacket(p, packet);
+        }
+    }
+
+    private Packet<? extends PacketListener> proccessPositionBasedPacket(Player player, int blockX, int blockY, int blockZ, Packet<? extends PacketListener> packet) {
+        if (privilegeProvider.isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ)) {
+            return packet;
+        } else {
+            return null;
+        }
+    }
+
+    private <TTargetPacket extends Packet<?>> BiFunction<Player, Packet<?>, Packet<?>> buildPositionBasedPacketProcessor(Function<TTargetPacket, BlockPos> positionExtractor) {
+        return (p, rawPacket) -> {
+            TTargetPacket packet = (TTargetPacket) rawPacket;
+            BlockPos pos = positionExtractor.apply(packet);
+            int blockX = pos.getX();
+            int blockY = pos.getY();
+            int blockZ = pos.getZ();
+
+            return proccessPositionBasedPacket(p, blockX, blockY, blockZ, packet);
+        };
+    }
 }

SpigotCore/SpigotCore_Main/src/de/steamwar/techhider/legacy/ChunkHider.java

@@ -0,0 +1,319 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.techhider.legacy;
+
+import de.steamwar.Reflection;
+import de.steamwar.techhider.ProtocolUtils;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import lombok.Getter;
+import net.minecraft.core.Registry;
+import net.minecraft.core.registries.BuiltInRegistries;
+import net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData;
+import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.util.SimpleBitStorage;
+import net.minecraft.world.level.block.entity.BlockEntityType;
+import org.bukkit.entity.Player;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Set;
+import java.util.function.BiFunction;
+import java.util.function.UnaryOperator;
+import java.util.stream.Collectors;
+
+@Deprecated
+public class ChunkHider {
+    public static final ChunkHider impl = new ChunkHider();
+
+    public Class<?> mapChunkPacket() {
+        return ClientboundLevelChunkWithLightPacket.class;
+    }
+
+    private static final UnaryOperator<Object> chunkPacketCloner = ProtocolUtils.shallowCloneGenerator(ClientboundLevelChunkWithLightPacket.class);
+    private static final UnaryOperator<Object> chunkDataCloner = ProtocolUtils.shallowCloneGenerator(ClientboundLevelChunkPacketData.class);
+
+    private static final Reflection.Field<Integer> chunkXField = Reflection.getField(ClientboundLevelChunkWithLightPacket.class, int.class, 0);
+    private static final Reflection.Field<Integer> chunkZField = Reflection.getField(ClientboundLevelChunkWithLightPacket.class, int.class, 1);
+    private static final Reflection.Field<ClientboundLevelChunkPacketData> chunkData = Reflection.getField(ClientboundLevelChunkWithLightPacket.class, ClientboundLevelChunkPacketData.class, 0);
+
+    private static final Reflection.Field<byte[]> dataField = Reflection.getField(ClientboundLevelChunkPacketData.class, byte[].class, 0);
+    private static final Reflection.Field<List> tileEntities = Reflection.getField(ClientboundLevelChunkPacketData.class, List.class, 0);
+
+    public BiFunction<Player, Object, Object> chunkHiderGenerator(TechHider techHider) {
+        return (p, packet) -> {
+            int chunkX = chunkXField.get(packet);
+            int chunkZ = chunkZField.get(packet);
+            if (techHider.getLocationEvaluator().skipChunk(p, chunkX, chunkZ)) {
+                return packet;
+            }
+
+            packet = chunkPacketCloner.apply(packet);
+            Object dataWrapper = chunkDataCloner.apply(chunkData.get(packet));
+
+            Set<String> hiddenBlockEntities = techHider.getHiddenBlockEntities();
+            tileEntities.set(dataWrapper, ((List<?>) tileEntities.get(dataWrapper)).stream().filter(te -> tileEntityVisible(hiddenBlockEntities, te)).collect(Collectors.toList()));
+
+            ByteBuf in = Unpooled.wrappedBuffer(dataField.get(dataWrapper));
+            ByteBuf out = Unpooled.buffer(in.readableBytes() + 64);
+            for (int yOffset = p.getWorld().getMinHeight(); yOffset < p.getWorld().getMaxHeight(); yOffset += 16) {
+                SectionHider section = new SectionHider(p, techHider, in, out, chunkX, yOffset / 16, chunkZ);
+                section.copyBlockCount();
+
+                blocks(section);
+                biomes(section);
+            }
+
+            if (in.readableBytes() != 0) {
+                throw new IllegalStateException("ChunkHider21: Incomplete chunk data, " + in.readableBytes() + " bytes left");
+            }
+
+            byte[] data = new byte[out.readableBytes()];
+            out.readBytes(data);
+            dataField.set(dataWrapper, data);
+
+            chunkData.set(packet, dataWrapper);
+            return packet;
+        };
+    }
+
+    private static final Registry<BlockEntityType<?>> registry = Reflection.getField(BuiltInRegistries.class, "BLOCK_ENTITY_TYPE", Registry.class).get(null);
+    private static final Reflection.Method getKey = Reflection.getTypedMethod(Reflection.getClass("net.minecraft.core.Registry"), "getKey", ResourceLocation.class, Object.class);
+    public static final Class<?> tileEntity = Reflection.getClass("net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData$BlockEntityInfo");
+    protected static final Reflection.Field<BlockEntityType> entityType = Reflection.getField(tileEntity, BlockEntityType.class, 0);
+
+    protected boolean tileEntityVisible(Set<String> hiddenBlockEntities, Object tile) {
+        BlockEntityType type = entityType.get(tile);
+        String path = ((ResourceLocation) getKey.invoke(registry, type)).getPath();
+        return !hiddenBlockEntities.contains(path);
+    }
+
+    private void blocks(SectionHider section) {
+        section.copyBitsPerBlock();
+
+        boolean singleValued = section.getBitsPerBlock() == 0;
+        if (singleValued) {
+            int value = ProtocolUtils.readVarInt(section.getIn());
+            ProtocolUtils.writeVarInt(section.getOut(), !section.isSkipSection() && section.getObfuscate().contains(value) ? section.getTarget() : value);
+            return;
+        } else if (section.getBitsPerBlock() < 9) {
+            // Indirect (paletted) storage – only present when bitsPerBlock < 9 in 1.21+
+            section.processPalette();
+        }
+
+        if (section.isSkipSection() || (!section.blockPrecise() && section.isPaletted())) {
+            section.skipNewDataArray(4096);
+            return;
+        }
+
+        SimpleBitStorage values = new SimpleBitStorage(section.getBitsPerBlock(), 4096, section.readNewDataArray(4096));
+
+        for (int y = 0; y < 16; y++) {
+            for (int z = 0; z < 16; z++) {
+                for (int x = 0; x < 16; x++) {
+                    int pos = (((y * 16) + z) * 16) + x;
+
+                    TechHider.State test = section.test(x, y, z);
+
+                    switch (test) {
+                        case SKIP:
+                            break;
+                        case CHECK:
+                            if (!section.getObfuscate().contains(values.get(pos))) {
+                                break;
+                            }
+                        case HIDE:
+                            values.set(pos, section.getTarget());
+                            break;
+                        case HIDE_AIR:
+                        default:
+                            values.set(pos, section.getAir());
+                    }
+                }
+            }
+        }
+
+        section.writeDataArray(values.getRaw());
+    }
+
+    private void biomes(SectionHider section) {
+        section.copyBitsPerBlock();
+        if (section.getBitsPerBlock() == 0) {
+            section.copyVarInt();
+        } else if (section.getBitsPerBlock() < 6) {
+            section.skipPalette();
+            section.skipNewDataArray(64);
+        } else {
+            // Direct (global) biome IDs – no palette present
+            section.skipNewDataArray(64);
+        }
+    }
+
+    @Getter
+    class SectionHider {
+        private final Player player;
+        private final TechHider techHider;
+        private final ByteBuf in;
+        private final ByteBuf out;
+
+        private final int chunkX;
+        private final int chunkY;
+        private final int chunkZ;
+        private final int offsetX;
+        private final int offsetY;
+        private final int offsetZ;
+
+        private final boolean skipSection;
+
+        private boolean paletted;
+        private int bitsPerBlock;
+        private int blockCount;
+        private int air;
+        private int target;
+        private Set<Integer> obfuscate;
+
+        public SectionHider(Player player, TechHider techHider, ByteBuf in, ByteBuf out, int chunkX, int chunkY, int chunkZ) {
+            this.player = player;
+            this.techHider = techHider;
+            this.in = in;
+            this.out = out;
+            this.chunkX = chunkX;
+            this.chunkY = chunkY;
+            this.chunkZ = chunkZ;
+            this.offsetX = 16 * chunkX;
+            this.offsetY = 16 * chunkY;
+            this.offsetZ = 16 * chunkZ;
+            this.skipSection = techHider.getLocationEvaluator().skipChunkSection(player, chunkX, chunkY, chunkZ);
+
+            this.paletted = false;
+            this.bitsPerBlock = 0;
+            this.air = TechHider.AIR_ID;
+            this.target = techHider.getObfuscationTargetId();
+            this.obfuscate = techHider.getObfuscateIds();
+        }
+
+        public boolean blockPrecise() {
+            return techHider.getLocationEvaluator().blockPrecise(player, chunkX, chunkY, chunkZ);
+        }
+
+        public TechHider.State test(int x, int y, int z) {
+            return techHider.getLocationEvaluator().check(player, offsetX + x, offsetY + y, offsetZ + z);
+        }
+
+        public void copyBlockCount() {
+            this.blockCount = in.readShort();
+            out.writeShort(blockCount);
+        }
+
+        public void copyBitsPerBlock() {
+            bitsPerBlock = in.readByte();
+            out.writeByte(bitsPerBlock);
+        }
+
+        public int copyVarInt() {
+            int value = ProtocolUtils.readVarInt(in);
+            ProtocolUtils.writeVarInt(out, value);
+            return value;
+        }
+
+        public void skipPalette() {
+            int paletteLength = copyVarInt();
+            for (int i = 0; i < paletteLength; i++) {
+                copyVarInt();
+            }
+        }
+
+        public void processPalette() {
+            if (skipSection) {
+                skipPalette();
+                return;
+            }
+
+            int paletteLength = copyVarInt();
+            if (paletteLength == 0) return;
+
+            paletted = true;
+            air = 0;
+            target = 0;
+
+            for (int i = 0; i < paletteLength; i++) {
+                int entry = ProtocolUtils.readVarInt(in);
+                if (obfuscate.contains(entry)) {
+                    entry = techHider.getObfuscationTargetId();
+                }
+
+                if (entry == TechHider.AIR_ID) {
+                    air = i;
+                } else if (entry == techHider.getObfuscationTargetId()) {
+                    target = i;
+                }
+
+                ProtocolUtils.writeVarInt(out, entry);
+            }
+            obfuscate = Collections.emptySet();
+        }
+
+        public void skipDataArray() {
+            int dataArrayLength = copyVarInt();
+            out.writeBytes(in, dataArrayLength * 8);
+        }
+
+        public void skipNewDataArray(int entries) {
+            if (bitsPerBlock == 0) {
+                return;
+            }
+
+            char valuesPerLong = (char) (64 / bitsPerBlock);
+            int i1 = (entries + valuesPerLong - 1) / valuesPerLong;
+            out.writeBytes(in, i1 * Long.BYTES);
+        }
+
+        public long[] readDataArray() {
+            long[] array = new long[copyVarInt()];
+            for (int i = 0; i < array.length; i++) {
+                array[i] = in.readLong();
+            }
+
+            return array;
+        }
+
+        public long[] readNewDataArray(int entries) {
+            if (bitsPerBlock == 0) {
+                return new long[entries];
+            }
+
+            char valuesPerLong = (char) (64 / bitsPerBlock);
+            int i1 = (entries + valuesPerLong - 1) / valuesPerLong;
+            long[] array = new long[i1];
+            for (int i = 0; i < i1; i++) {
+                array[i] = in.readLong();
+            }
+
+            return array;
+        }
+
+        public void writeDataArray(long[] array) {
+            for (long l : array) {
+                out.writeLong(l);
+            }
+        }
+    }
+}

SpigotCore/SpigotCore_Main/src/de/steamwar/techhider/legacy/ProtocolWrapper.java

@@ -17,7 +17,7 @@
  *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package de.steamwar.techhider;
+package de.steamwar.techhider.legacy;
 
 import de.steamwar.Reflection;
 import net.minecraft.core.SectionPos;
@@ -29,6 +29,7 @@ import org.bukkit.entity.Player;
 import java.util.ArrayList;
 import java.util.function.BiFunction;
 
+@Deprecated
 public class ProtocolWrapper {
     public static final ProtocolWrapper impl = new ProtocolWrapper();
 
@@ -88,8 +89,4 @@ public class ProtocolWrapper {
     public boolean unfilteredTileEntityDataAction(Object packet) {
         return tileEntityType.get(packet) != signType;
     }
-
-    public BiFunction<Player, Object, Object> blockBreakHiderGenerator(Class<?> blockBreakPacket, TechHider techHider) {
-        return null;
-    }
 }

SpigotCore/SpigotCore_Main/src/de/steamwar/techhider/legacy/TechHider.java

@@ -0,0 +1,184 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.techhider.legacy;
+
+import com.comphenix.tinyprotocol.TinyProtocol;
+import de.steamwar.Reflection;
+import de.steamwar.techhider.BlockIds;
+import de.steamwar.techhider.ProtocolUtils;
+import lombok.Getter;
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.Vec3i;
+import net.minecraft.network.protocol.game.*;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.state.BlockState;
+import org.bukkit.Material;
+import org.bukkit.craftbukkit.util.CraftMagicNumbers;
+import org.bukkit.entity.Player;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.BiFunction;
+import java.util.function.Function;
+import java.util.function.UnaryOperator;
+import java.util.stream.Collectors;
+
+@Deprecated
+public class TechHider {
+
+    public static final Class<?> blockPosition = BlockPos.class;
+    private static final Class<?> baseBlockPosition = Vec3i.class;
+    public static final Reflection.Field<Integer> blockPositionX = Reflection.getField(baseBlockPosition, int.class, 0);
+    public static final Reflection.Field<Integer> blockPositionY = Reflection.getField(baseBlockPosition, int.class, 1);
+    public static final Reflection.Field<Integer> blockPositionZ = Reflection.getField(baseBlockPosition, int.class, 2);
+
+    public static final Class<?> iBlockData = BlockState.class;
+    public static final Class<?> block = Block.class;
+
+    public boolean iBlockDataHidden(BlockState iBlockData) {
+        return obfuscateIds.contains(BlockIds.impl.getCombinedId(iBlockData));
+    }
+
+    public static final Object AIR = CraftMagicNumbers.getBlock(Material.AIR).defaultBlockState();
+    public static final int AIR_ID = BlockIds.impl.materialToId(Material.AIR);
+
+    private final Map<Class<?>, BiFunction<Player, Object, Object>> techhiders = new HashMap<>();
+    @Getter
+    private final LocationEvaluator locationEvaluator;
+    @Getter
+    private final Object obfuscationTarget;
+    @Getter
+    private final int obfuscationTargetId;
+    @Getter
+    private final Set<Integer> obfuscateIds;
+    @Getter
+    private final Set<String> hiddenBlockEntities;
+
+    public TechHider(LocationEvaluator locationEvaluator, Material obfuscationTarget, Set<Material> obfuscate, Set<String> hiddenBlockEntities) {
+        this.locationEvaluator = locationEvaluator;
+        this.obfuscateIds = obfuscate.stream().flatMap(m -> BlockIds.impl.materialToAllIds(m).stream()).collect(Collectors.toSet());
+        this.hiddenBlockEntities = hiddenBlockEntities;
+        this.obfuscationTarget = CraftMagicNumbers.getBlock(obfuscationTarget).defaultBlockState();
+        this.obfuscationTargetId = BlockIds.impl.materialToId(obfuscationTarget);
+
+        techhiders.put(blockActionPacket, this::blockActionHider);
+        techhiders.put(blockChangePacket, this::blockChangeHider);
+        techhiders.put(tileEntityDataPacket, this::tileEntityDataHider);
+        techhiders.put(multiBlockChangePacket, ProtocolWrapper.impl.multiBlockChangeGenerator(this));
+        techhiders.put(ChunkHider.impl.mapChunkPacket(), ChunkHider.impl.chunkHiderGenerator(this));
+        techhiders.put(ServerboundUseItemOnPacket.class, (p, packet) -> locationEvaluator.suppressInteractions(p) ? null : packet);
+        techhiders.put(ServerboundInteractPacket.class, (p, packet) -> locationEvaluator.suppressInteractions(p) ? null : packet);
+
+    }
+
+    public void enable() {
+        techhiders.forEach((type, playerObjectBiFunction) -> TinyProtocol.instance.addFilter((Class) type, playerObjectBiFunction));
+    }
+
+    public void disable() {
+        techhiders.forEach(TinyProtocol.instance::removeFilter);
+    }
+
+    public static final Class<?> multiBlockChangePacket = ClientboundSectionBlocksUpdatePacket.class;
+    public static final UnaryOperator<Object> multiBlockChangeCloner = ProtocolUtils.shallowCloneGenerator(TechHider.multiBlockChangePacket);
+
+    private static final Class<?> blockChangePacket = ClientboundBlockUpdatePacket.class;
+    private static final Function<Object, Object> blockChangeCloner = ProtocolUtils.shallowCloneGenerator(blockChangePacket);
+    private static final Reflection.Field<?> blockChangePosition = Reflection.getField(blockChangePacket, blockPosition, 0);
+    private static final Reflection.Field<?> blockChangeBlockData = Reflection.getField(blockChangePacket, iBlockData, 0);
+
+    private Object blockChangeHider(Player p, Object packet) {
+        switch (locationEvaluator.checkBlockPos(p, blockChangePosition.get(packet))) {
+            case SKIP:
+                return packet;
+            case CHECK:
+                if (!iBlockDataHidden((BlockState) blockChangeBlockData.get(packet))) {
+                    return packet;
+                }
+            case HIDE:
+                packet = blockChangeCloner.apply(packet);
+                blockChangeBlockData.set(packet, obfuscationTarget);
+                return packet;
+            case HIDE_AIR:
+            default:
+                packet = blockChangeCloner.apply(packet);
+                blockChangeBlockData.set(packet, AIR);
+                return packet;
+        }
+    }
+
+    private static final Class<?> blockActionPacket = ClientboundBlockEventPacket.class;
+    private static final Reflection.Field<?> blockActionPosition = Reflection.getField(blockActionPacket, blockPosition, 0);
+
+    private Object blockActionHider(Player p, Object packet) {
+        if (locationEvaluator.checkBlockPos(p, blockActionPosition.get(packet)) == State.SKIP) {
+            return packet;
+        }
+        return null;
+    }
+
+    public static final Class<?> tileEntityDataPacket = ClientboundBlockEntityDataPacket.class;
+    private static final Reflection.Field<?> tileEntityDataPosition = Reflection.getField(tileEntityDataPacket, blockPosition, 0);
+
+    private Object tileEntityDataHider(Player p, Object packet) {
+        switch (locationEvaluator.checkBlockPos(p, tileEntityDataPosition.get(packet))) {
+            case SKIP:
+                return packet;
+            case CHECK:
+                if (ProtocolWrapper.impl.unfilteredTileEntityDataAction(packet)) {
+                    return packet;
+                }
+            default:
+                return null;
+        }
+    }
+
+    public enum State {
+        SKIP,
+        CHECK,
+        HIDE,
+        HIDE_AIR
+    }
+
+    public interface LocationEvaluator {
+        default boolean suppressInteractions(Player player) {
+            return false;
+        }
+
+        boolean skipChunk(Player player, int x, int z);
+
+        default boolean skipChunkSection(Player player, int x, int y, int z) {
+            return skipChunk(player, x, z);
+        }
+
+        default State check(Player player, int x, int y, int z) {
+            return skipChunkSection(player, ProtocolUtils.posToChunk(x), ProtocolUtils.posToChunk(y), ProtocolUtils.posToChunk(z)) ? State.SKIP : State.CHECK;
+        }
+
+        default State checkBlockPos(Player player, Object pos) {
+            return check(player, blockPositionX.get(pos), blockPositionY.get(pos), blockPositionZ.get(pos));
+        }
+
+        default boolean blockPrecise(Player player, int x, int y, int z) {
+            return false;
+        }
+    }
+}

TNTLeague/src/de/steamwar/tntleague/command/InviteCommand.kt

@@ -28,6 +28,9 @@ import net.md_5.bungee.api.chat.ClickEvent
 import org.bukkit.entity.Player
 
 object InviteCommand : SWCommand("invite") {
+    init {
+        message = de.steamwar.tntleague.message
+    }
 
     @Register
     fun invitePlayer(@Validator("isLeader") sender: Player, target: Player) {

VelocityCore/Dependencies/build.gradle.kts

@@ -37,12 +37,7 @@ tasks.build {
 }
 
 kotlin {
-    jvmToolchain(17)
-}
-
-java {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    jvmToolchain(21)
 }
 
 dependencies {

VelocityCore/Persistent/build.gradle.kts

@@ -21,11 +21,6 @@ plugins {
     steamwar.java
 }
 
-java {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
-}
-
 dependencies {
     compileOnly(libs.velocity)
     annotationProcessor(libs.velocityapi)

VelocityCore/build.gradle.kts

@@ -42,11 +42,12 @@ dependencies {
     implementation(project(":CommandFramework"))
 }
 
-tasks.register<DevServer>("DevVelocity") {
+tasks.register<VelocityServer>("DevVelocity") {
     group = "run"
     description = "Run a Dev Velocity"
     dependsOn(":VelocityCore:shadowJar")
     dependsOn(":VelocityCore:Persistent:jar")
     dependsOn(":VelocityCore:Dependencies:shadowJar")
     template = "DevVelocity"
+    packetDecodeLogging=true
 }

VelocityCore/src/de/steamwar/messages/BungeeCore.properties

@@ -493,6 +493,16 @@ TEAM_INFO_TEAM = §7Team §e{0} §8[§{1}{2}§8]
 TEAM_INFO_LEADER = §7Leader ({0})§8: {1}
 TEAM_INFO_MEMBER = §7Member ({0})§8: {1}
 TEAM_INFO_EVENTS = §7Events ({0})§8: §e{1}
+#Server Team
+TEAM_INFO_SW_USAGE = §8/§7team info §8[§eSW§8|§eSteamWar§8]
+TEAM_INFO_SW_HEADER = §7Server Team §eSteam§8War §8[§eS§8W]
+TEAM_INFO_SW_RANK = {0} §7({1})§8: {2}
+
+#TEAM Prefix
+TEAM_PREFIX_USAGE = §8/§7team prefix §8[§eteam§8|§eSW§8]
+TEAM_PREFIX_CURRENT = §7Current chat prefix§8: §e{0}
+TEAM_PREFIX_SET = §7Your chat prefix is now your §e{0} prefix§7.
+TEAM_PREFIX_TEAM = Team
 
 #Team List
 TEAM_LIST_NOT_PAGE = §cNo page number entered
@@ -586,8 +596,8 @@ JOIN_STREAMING = §5Streaming Mode§7 is still active§8.§7 Keep in mind that y
 EVENTMODE_KICK = §cYou are not an event participant.
 
 #TablistManager
-TABLIST_PHASE_WEBSITE = §8Website: https://§eSteam§8War.de
-TABLIST_PHASE_DISCORD = §8Discord: https://§eSteam§8War.de/discord
+TABLIST_PHASE_WEBSITE = §7Website§8: §7https://§eSteam§8War§7.de
+TABLIST_PHASE_DISCORD = §7Discord§8: §7https://§eSteam§8War§7.de/discord
 TABLIST_FOOTER = §e{0} {1}§8ms   §ePlayers§8: §7{2}
 TABLIST_BAU = §7§lBuild
 LIST_COMMAND = §e{0}§8 [{1}]: §7{2}

VelocityCore/src/de/steamwar/messages/BungeeCore_de.properties

@@ -466,6 +466,11 @@ TEAM_INFO_LEADER = §7Leader ({0})§8: {1}
 TEAM_INFO_MEMBER = §7Member ({0})§8: {1}
 TEAM_INFO_EVENTS = §7Events ({0})§8: §e{1}
 
+#Team Prefix
+TEAM_PREFIX_USAGE = §8/§7team prefix §8[§eteam§8|§eSW§8]
+TEAM_PREFIX_CURRENT = §7Aktueller Chatprefix§8: §e{0}
+TEAM_PREFIX_SET = §7Dein Chatprefix ist jetzt dein §e{0}prefix§7.
+
 #Team List
 TEAM_LIST_NOT_PAGE = §cKeine Seitenzahl angegeben
 TEAM_LIST_UNKNOWN_PAGE = §cUngültige Seitenzahl angegeben

VelocityCore/src/de/steamwar/velocitycore/Config.java

@@ -21,6 +21,7 @@ package de.steamwar.velocitycore;
 
 import com.velocitypowered.api.proxy.server.RegisteredServer;
 import lombok.Getter;
+import org.yaml.snakeyaml.DumperOptions;
 import org.yaml.snakeyaml.LoaderOptions;
 import org.yaml.snakeyaml.TypeDescription;
 import org.yaml.snakeyaml.Yaml;
@@ -46,7 +47,7 @@ public class Config {
         Constructor constructor = new Constructor(clazz, new LoaderOptions());
         constructor.addTypeDescription(typeDescription);
 
-        Representer representer = new Representer();
+        Representer representer = new Representer(new DumperOptions());
         representer.getPropertyUtils().setSkipMissingProperties(true);
 
         Yaml yaml = new Yaml(constructor, representer);

VelocityCore/src/de/steamwar/velocitycore/ServerStarter.java

@@ -106,7 +106,7 @@ public class ServerStarter {
     public ServerStarter event(EventFight eventFight) {
         arena(ArenaMode.getByInternal(eventFight.getSpielmodus()), eventFight.getMap());
         node = VelocityCore.local;
-        worldDir = EVENT_PATH;
+        worldDir = EVENT_PATH + "/" + serverToWorldName(Event.byId(eventFight.getEventID()).getEventName()) + "/" + eventFight.getStartTime().toLocalDateTime().format(DateTimeFormatter.ISO_LOCAL_DATE);
         worldCleanup = () -> {
         };
         arguments.put("fightID", String.valueOf(eventFight.getFightID()));
@@ -351,7 +351,7 @@ public class ServerStarter {
     }
 
     public static String serverToWorldName(String serverName) {
-        return serverName.replace(' ', '_').replace("[", "").replace("]", "");
+        return serverName.replace(' ', '_').replace("[", "").replace("]", "").replace(".", "");
     }
 
     public static void copyWorld(Node node, String template, String target) {

VelocityCore/src/de/steamwar/velocitycore/VelocityCore.java

@@ -45,6 +45,7 @@ import de.steamwar.velocitycore.commands.TeamCommand;
 import de.steamwar.velocitycore.discord.DiscordBot;
 import de.steamwar.velocitycore.discord.DiscordConfig;
 import de.steamwar.velocitycore.listeners.BasicListener;
+import de.steamwar.velocitycore.util.SteamwarPrefix;
 import lombok.Getter;
 import lombok.NonNull;
 
@@ -185,6 +186,7 @@ public class VelocityCore implements ReloadablePlugin {
         schedule(() -> {
             SteamwarUser.clear();
             Team.clear();
+            SteamwarPrefix.clearCache();
         }).repeat(1, TimeUnit.HOURS).schedule();
 
         DiscordConfig discordConfig = DiscordConfig.load();

VelocityCore/src/de/steamwar/velocitycore/commands/CheckCommand.java

@@ -307,6 +307,13 @@ public class CheckCommand extends SWCommand {
                     return;
                 }
 
+                // Remove any added players from the schematic in the folder
+                for (SchematicNode schematicNode : SchematicNode.getSchematicNodeInNode(teamFolder.getNodeId())) {
+                    for (NodeMember nodeMember : NodeMember.getNodeMembers(schematicNode.getNodeId())) {
+                        nodeMember.delete();
+                    }
+                }
+
                 // Copy Schem into team folder of -1 user
                 String name = DateTimeFormatter.ofPattern("yyyy.MM.dd_HH:mm:ss").format(schematic.getLastUpdate().toLocalDateTime());
                 NodeData data = NodeData.getLatest(schematic);
@@ -316,14 +323,8 @@ public class CheckCommand extends SWCommand {
                 // Accept the team folder schematic and set other to Normal as well as adding the original owner on the schematic
                 node.setSchemtype(GameModeConfig.getBySchematicType(schematic.getSchemtype()).Schematic.Type);
                 NodeMember.createNodeMember(node.getNodeId(), schematic.getOwner());
-
-                // Remove any added players from the schematic in the folder
-                for (SchematicNode schematicNode : SchematicNode.getSchematicNodeInNode(teamFolder.getNodeId())) {
-                    if (schematicNode.getNodeId() == node.getNodeId()) continue;
-                    for (NodeMember nodeMember : NodeMember.getNodeMembers(schematicNode.getNodeId())) {
-                        NodeMember.createNodeMember(node.getNodeId(), nodeMember.getMember());
-                        nodeMember.delete();
-                    }
+                for (NodeMember nodeMember : NodeMember.getNodeMembers(schematic.getId())) {
+                    NodeMember.createNodeMember(node.getNodeId(), nodeMember.getMember());
                 }
 
                 // Conclude by setting send in schematic to normal and broadcast

VelocityCore/src/de/steamwar/velocitycore/commands/ReplayCommand.java

@@ -42,6 +42,13 @@ public class ReplayCommand extends SWCommand {
         super("replay");
     }
 
+    @Register
+    public void genericCommand(PlayerChatter sender) {
+        sender.system("REPLAY_UNAVAILABLE");
+        return;
+    }
+
+    /*
     @Register
     public void genericCommand(PlayerChatter sender, int replayId, @StaticValue(value = {"", "-a"}, allowISE = true) @OptionalValue("") boolean isAdmin, @OptionalValue("") String optionalMap) {
         Fight fight = Fight.getById(replayId);
@@ -109,4 +116,5 @@ public class ReplayCommand extends SWCommand {
     private Message parseLeader(SteamwarUser leader, int players, boolean winner) {
         return new Message("REPLAY_" + (players > 1 ? "" : "SOLO_") + (winner ? "WINNER" : "LOSER"), leader.getUserName(), players - 1);
     }
+    */
 }

VelocityCore/src/de/steamwar/velocitycore/commands/TeamCommand.java

@@ -27,14 +27,12 @@ import de.steamwar.linkage.Linked;
 import de.steamwar.messages.Chatter;
 import de.steamwar.messages.Message;
 import de.steamwar.messages.PlayerChatter;
-import de.steamwar.sql.Event;
-import de.steamwar.sql.SteamwarUser;
-import de.steamwar.sql.Team;
-import de.steamwar.sql.TeamTeilnahme;
+import de.steamwar.sql.*;
 import de.steamwar.velocitycore.VelocityCore;
 import de.steamwar.velocitycore.discord.DiscordBot;
 import de.steamwar.velocitycore.inventory.SWItem;
 import de.steamwar.velocitycore.inventory.SWListInv;
+import de.steamwar.velocitycore.util.SteamwarPrefix;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.event.ClickEvent;
 import net.kyori.adventure.text.event.HoverEvent;
@@ -51,6 +49,9 @@ import static de.steamwar.persistent.Storage.teamInvitations;
 @Linked
 public class TeamCommand extends SWCommand {
 
+    public static final String STEAM_WAR = "SteamWar";
+    public static final String SW = "SW";
+
     public TeamCommand() {
         super("team");
     }
@@ -324,26 +325,63 @@ public class TeamCommand extends SWCommand {
         }
     }
 
+    @Register(value = "info", description = "TEAM_INFO_SW_USAGE")
+    public void infoServerTeam(Chatter sender, @StaticValue({SW, STEAM_WAR}) String __) {
+        sender.system("TEAM_INFO_SW_HEADER");
+
+        UserPerm.prefixes.entrySet().stream()
+                .filter(entry -> entry.getValue().getTeamPrefix())
+                .sorted(Map.Entry.<UserPerm, UserPerm.Prefix>comparingByKey().reversed())
+                .map(entry -> Map.entry(SteamwarUser.getUsersWithPerm(entry.getKey()), entry.getValue()))
+                .filter(entry -> !entry.getKey().isEmpty())
+                .forEach(entry -> {
+                    UserPerm.Prefix prefix = entry.getValue();
+                    String memberList = getMemberList(entry.getKey().stream());
+                    sender.prefixless("TEAM_INFO_SW_RANK",
+                            prefix.getColorCode() + prefix.getChatPrefix(),
+                            entry.getKey().size(), memberList);
+                });
+    }
+
     private String getMemberList(List<SteamwarUser> users, boolean leaders) {
-        return users.stream()
-                .filter(user -> user.isLeader() == leaders)
-                .map(user -> {
-                    StringBuilder st = new StringBuilder();
-                    if (VelocityCore.getProxy().getPlayer(user.getUUID()).isPresent()) {
-                        if (!StreamingCommand.isNotStreaming(user)) {
-                            st.append("§5");
-                        } else {
-                            st.append("§a");
-                        }
-                    } else {
-                        st.append("§e");
-                    }
-                    st.append(user.getUserName());
-                    return st.toString();
-                })
+        return getMemberList(users.stream().filter(u -> u.isLeader() == leaders));
+    }
+
+    private String getMemberList(Stream<SteamwarUser> users) {
+        return users.map(user -> getUserColor(user) + user.getUserName())
                 .collect(Collectors.joining("§8,§r "));
     }
 
+    private String getUserColor(SteamwarUser user) {
+        if (VelocityCore.getProxy().getPlayer(user.getUUID()).isPresent()) {
+            return StreamingCommand.isNotStreaming(user) ? /* Not Streaming */ "§a" : /* Streaming */ "§5";
+        }
+        return "§e"; // Offline
+    }
+
+    @Register(value = "prefix", description = "TEAM_PREFIX_USAGE")
+    public void prefix(@Validator("canUseTeamPrefix") Chatter sender) {
+        boolean swPrefix = SteamwarPrefix.usesSWPrefix(sender.user());
+        sender.system("TEAM_PREFIX_CURRENT", swPrefix ? STEAM_WAR : sender.parseToPlain("TEAM_PREFIX_TEAM"));
+    }
+
+    @Register(value = "prefix", description = "TEAM_PREFIX_USAGE")
+    public void prefix(@Validator("canUseTeamPrefix") Chatter sender, @StaticValue(value = {SW, STEAM_WAR, "Team"}, falseValues = {2}, allowISE = true) boolean useSWTeamTag) {
+        SteamwarPrefix.setSWPrefix(sender.user(), useSWTeamTag);
+        sender.system("TEAM_PREFIX_SET", useSWTeamTag ? STEAM_WAR : sender.parseToPlain("TEAM_PREFIX_TEAM"));
+    }
+
+    @Validator(value = "canUseTeamPrefix", local = true)
+    public TypeValidator<Chatter> canUseTeamPrefixValidator() {
+        return (sender, value, messageSender) -> {
+            SteamwarUser user = value.user();
+
+            return user.hasPerm(UserPerm.TEAM)
+                    && user.getTeam() != 0
+                    && user.prefix() != UserPerm.emptyPrefix;
+        };
+    }
+
     @Register("list")
     public void list(Chatter sender, @Min(intValue = 1) @OptionalValue("1") @ErrorMessage("TEAM_LIST_NOT_PAGE") int page) {
         final int TEAMS_PER_PAGE = 10;
@@ -532,6 +570,9 @@ public class TeamCommand extends SWCommand {
         return new TypeMapper<Team>() {
             @Override
             public Team map(Chatter sender, PreviousArguments previousArguments, String s) {
+                if ((s.equalsIgnoreCase(SW) || s.equalsIgnoreCase(STEAM_WAR))) {
+                    return null;
+                }
                 return Team.get(s);
             }
 

VelocityCore/src/de/steamwar/velocitycore/discord/DiscordBot.java

@@ -22,6 +22,7 @@ package de.steamwar.velocitycore.discord;
 import de.steamwar.command.SWCommand;
 import de.steamwar.messages.Chatter;
 import de.steamwar.sql.Event;
+import de.steamwar.sql.SteamwarUser;
 import de.steamwar.velocitycore.VelocityCore;
 import de.steamwar.velocitycore.discord.channels.*;
 import de.steamwar.velocitycore.discord.listeners.ChannelListener;
@@ -52,12 +53,12 @@ import net.dv8tion.jda.api.utils.MemberCachePolicy;
 import net.dv8tion.jda.api.utils.messages.MessageCreateBuilder;
 
 import java.awt.*;
-import java.util.ArrayList;
-import java.util.HashMap;
+import java.util.*;
 import java.util.List;
-import java.util.Map;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.function.Consumer;
+import java.util.stream.Collectors;
 
 public class DiscordBot {
     public static final String ARGUMENT_NAME = "arguments";
@@ -169,7 +170,7 @@ public class DiscordBot {
 
         eventChannel = new StaticMessageChannel(config.channel("events"), EventChannel::get);
         checklistChannel = new ChecklistChannel(config.channel("checklist"));
-        config.getCouncilThread().forEach((roleId, threadId) -> new CouncilChannel(DiscordBot.getGuild().getRoleById(roleId), DiscordBot.getGuild().getThreadChannelById(threadId)));
+        CouncilChannel.initCouncilChannels();
 
         announcementChannel = new DiscordChannel(config.channel("announcement"), 0) {
             @Override

VelocityCore/src/de/steamwar/velocitycore/discord/channels/CouncilChannel.java

@@ -20,9 +20,7 @@
 package de.steamwar.velocitycore.discord.channels;
 
 import de.steamwar.sql.SteamwarUser;
-import de.steamwar.velocitycore.VelocityCore;
 import de.steamwar.velocitycore.discord.DiscordBot;
-import it.unimi.dsi.fastutil.Pair;
 import net.dv8tion.jda.api.EmbedBuilder;
 import net.dv8tion.jda.api.entities.Member;
 import net.dv8tion.jda.api.entities.Role;
@@ -30,45 +28,90 @@ import net.dv8tion.jda.api.entities.channel.concrete.ThreadChannel;
 import net.dv8tion.jda.api.utils.messages.MessageCreateBuilder;
 
 import java.util.*;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.stream.Collectors;
 
 public class CouncilChannel extends StaticMessageChannel {
 
     private static final Set<CouncilChannel> channels = new HashSet<>();
 
+    private static final Set<Role> roleSet = DiscordBot.getInstance()
+            .getConfig()
+            .getCouncilThread()
+            .keySet()
+            .stream()
+            .map(roleId -> DiscordBot.getGuild().getRoleById(roleId))
+            .collect(Collectors.toSet());
+
+    private static final Map<Role, List<Member>> membersByRole = new HashMap<>();
+
+    private static void initRolesAndMembers(Runnable loaded) {
+        List<Long> discordIds = SteamwarUser.getUsersWithDiscordId().stream()
+                .map(SteamwarUser::getDiscordId)
+                .collect(Collectors.toList());
+
+        membersByRole.clear();
+        AtomicInteger countdown = new AtomicInteger(0);
+        for (int i = 0; i < discordIds.size(); i += 100) {
+            countdown.incrementAndGet();
+
+            List<Long> retrieveIds = discordIds.subList(i, Math.min(discordIds.size(), i + 100));
+
+            DiscordBot.getGuild().retrieveMembersByIds(retrieveIds)
+                    .onSuccess(members -> {
+                        members.forEach(member -> {
+                            for (Role role : roleSet) {
+                                if (member.getUnsortedRoles().contains(role)) {
+                                    membersByRole.computeIfAbsent(role, __ -> new ArrayList<>()).add(member);
+                                }
+                            }
+                        });
+
+                        if (countdown.decrementAndGet() == 0) {
+                            loaded.run();
+                        }
+                    });
+        }
+    }
+
+    public static void initCouncilChannels() {
+        initRolesAndMembers(() -> {
+            DiscordBot.getInstance()
+                    .getConfig()
+                    .getCouncilThread()
+                    .forEach((roleId, threadId) -> {
+                        new CouncilChannel(DiscordBot.getGuild().getRoleById(roleId), DiscordBot.getGuild().getThreadChannelById(threadId));
+                    });
+        });
+    }
+
     public static void updateAll() {
-        channels.forEach(StaticMessageChannel::update);
+        initRolesAndMembers(() -> {
+            channels.forEach(StaticMessageChannel::update);
+        });
     }
 
     public CouncilChannel(Role role, ThreadChannel threadChannel) {
         super(threadChannel, () -> {
             MessageCreateBuilder messageCreateBuilder = new MessageCreateBuilder();
             messageCreateBuilder.setContent("# Ratsmitglieder");
-
-            List<Member> members;
-            try {
-                members = DiscordBot.getGuild().findMembersWithRoles(role).onError(throwable -> {
-                    // Ignore
-                }).get();
-            } catch (Exception e) {
-                VelocityCore.getLogger().warning("Could not get members for " + role.getName());
-                return messageCreateBuilder;
-            }
-
-            members.stream()
+            Set<String> uniqueNames = new HashSet<>();
+            membersByRole.get(role)
+                    .stream()
                     .map(member -> {
                         SteamwarUser steamwarUser = SteamwarUser.get(member.getIdLong());
                         String name = steamwarUser == null ? member.getEffectiveName() : steamwarUser.getUserName();
                         UUID uuid = steamwarUser == null ? null : steamwarUser.getUUID();
-                        return Pair.of(name, uuid);
+                        return Map.entry(name, uuid);
                     })
-                    .sorted(Comparator.comparing(Pair::key))
-                    .forEach(pair -> {
+                    .sorted(Map.Entry.comparingByKey())
+                    .forEach(entry -> {
+                        if (!uniqueNames.add(entry.getKey())) return;
                         messageCreateBuilder.addEmbeds(new EmbedBuilder()
-                                .setTitle(pair.key())
-                                .setImage(pair.value() == null ? null : "https://api.steamwar.de/data/skin/" + pair.value().toString())
+                                .setTitle(entry.getKey())
+                                .setImage(entry.getValue() == null ? null : "https://api.steamwar.de/data/skin/" + entry.getValue())
                                 .build());
                     });
-
             return messageCreateBuilder;
         }, event -> {
         });

VelocityCore/src/de/steamwar/velocitycore/listeners/ChatListener.java

@@ -42,6 +42,7 @@ import de.steamwar.velocitycore.VelocityCore;
 import de.steamwar.velocitycore.commands.PunishmentCommand;
 import de.steamwar.velocitycore.discord.DiscordBot;
 import de.steamwar.velocitycore.network.NetworkSender;
+import de.steamwar.velocitycore.util.SteamwarPrefix;
 
 import java.util.Arrays;
 import java.util.List;
@@ -176,19 +177,21 @@ public class ChatListener extends BasicListener {
         final String coloredMessage = user.hasPerm(UserPerm.COLOR_CHAT) ? message.replace('&', '§') : message;
         if (chatFilter(sender, coloredMessage)) return;
 
+        boolean useSwPrefix = useSwPrefix(user);
+
         boolean noReceiver = true;
         for (Chatter player : receivers.getChatters()) {
             if (player.chatShown()) {
-                chatToReciever(player, msgReceiver, user, format, coloredMessage);
+                chatToReciever(player, msgReceiver, user, format, coloredMessage, useSwPrefix);
                 if (sender.user().getId() != player.user().getId()) noReceiver = false;
             }
 
         }
 
         if (format.equals("CHAT_GLOBAL")) {
-            DiscordBot.withBot(bot -> chatToReciever(bot.getIngameChat(), msgReceiver, user, format, coloredMessage));
+            DiscordBot.withBot(bot -> chatToReciever(bot.getIngameChat(), msgReceiver, user, format, coloredMessage, useSwPrefix));
         } else if (format.equals("CHAT_SERVERTEAM")) {
-            DiscordBot.withBot(bot -> chatToReciever(bot.getServerTeamChat(), msgReceiver, user, "CHAT_GLOBAL", coloredMessage));
+            DiscordBot.withBot(bot -> chatToReciever(bot.getServerTeamChat(), msgReceiver, user, "CHAT_GLOBAL", coloredMessage, useSwPrefix));
         } else if (noReceiver) {
             sender.system("CHAT_NO_RECEIVER");
         }
@@ -239,20 +242,45 @@ public class ChatListener extends BasicListener {
         return false;
     }
 
-    private static void chatToReciever(Chatter receiver, Chatter msgReceiver, SteamwarUser sender, String format, String message) {
+    private static void chatToReciever(Chatter receiver, Chatter msgReceiver, SteamwarUser sender, String format, String message, boolean useSwPrefix) {
         UserPerm.Prefix prefix = sender.prefix();
+
+        String teamPrefix = "";
+        if (sender.hasPerm(UserPerm.TEAM) && useSwPrefix) {
+            teamPrefix = "§eS§8W ";
+        } else if (sender.getTeam() != 0) {
+            Team team = Team.byId(sender.getTeam());
+            teamPrefix = "§" + team.getTeamColor() + team.getTeamKuerzel() + " ";
+        }
+
         String chatColorCode = sender.hasPerm(UserPerm.TEAM) ? "§f" : "§7";
         receiver.prefixless(format,
                 sender,
                 msgReceiver == null ? receiver : msgReceiver,
                 highlightMentions(message, chatColorCode, receiver),
-                sender.getTeam() == 0 ? "" : "§" + Team.byId(sender.getTeam()).getTeamColor() + Team.byId(sender.getTeam()).getTeamKuerzel() + " ",
+                teamPrefix,
                 "",
-                prefix.getColorCode(),
+                prefix == UserPerm.emptyPrefix ? "§f" : prefix.getColorCode(),
                 prefix.getChatPrefix().length() == 0 ? "§f" : prefix.getChatPrefix() + " ",
                 chatColorCode);
     }
 
+    private static boolean useSwPrefix(SteamwarUser user) {
+        if (!user.hasPerm(UserPerm.TEAM)) {
+            return false;
+        }
+
+        UserPerm.Prefix prefix = user.prefix();
+
+        boolean hasTeamPrefix = user.getTeam() != 0;
+        boolean hasSwPrefix = prefix != UserPerm.emptyPrefix;
+
+        if (!hasSwPrefix) return false;
+        if (!hasTeamPrefix) return true;
+
+        return SteamwarPrefix.usesSWPrefix(user);
+    }
+
     private static boolean filteredCommand(Chatter sender, String message) {
         String command = message.split(" ", 2)[0];
         if (command.startsWith("/") && command.contains(":")) {

VelocityCore/src/de/steamwar/velocitycore/tablist/Tablist.java

@@ -51,7 +51,7 @@ public class Tablist extends ChannelInboundHandlerAdapter {
 
     private static final UUID[] swUuids = IntStream.range(0, 80).mapToObj(i -> UUID.randomUUID()).toArray(UUID[]::new);
     private static final String[] swNames = IntStream.range(0, 80).mapToObj(i -> " »SW« " + String.format("%02d", i)).toArray(String[]::new);
-    public static final UpdateTeamsPacket createTeamPacket = new UpdateTeamsPacket21("zzzzzsw-tab", UpdateTeamsPacket.Mode.CREATE, Component.empty(), Component.empty(), Component.empty(), UpdateTeamsPacket.NameTagVisibility.NEVER, UpdateTeamsPacket.CollisionRule.ALWAYS, 21, (byte) 0x00, Arrays.stream(Tablist.swNames).toList());
+    public static final UpdateTeamsPacket createTeamPacket = new UpdateTeamsPacketImpl("zzzzzsw-tab", UpdateTeamsPacket.Mode.CREATE, Component.empty(), Component.empty(), Component.empty(), UpdateTeamsPacket.NameTagVisibility.NEVER, UpdateTeamsPacket.CollisionRule.ALWAYS, 21, (byte) 0x00, Arrays.stream(Tablist.swNames).toList());
 
     private final Map<UUID, UpsertPlayerInfoPacket.Entry> directTabItems;
     private final List<UpsertPlayerInfoPacket.Entry> current = new ArrayList<>();

VelocityCore/src/de/steamwar/velocitycore/tablist/UpdateTeamsPacket21.java

@@ -1,103 +0,0 @@
-/*
- *   This file is a part of the SteamWar software.
- *
- *   Copyright (C) 2025 SteamWar.de-Serverteam
- *
- *   This program is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU Affero General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *   GNU Affero General Public License for more details.
- *
- *   You should have received a copy of the GNU Affero General Public License
- *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.velocitycore.tablist;
-
-import com.velocitypowered.api.network.ProtocolVersion;
-import com.velocitypowered.proxy.protocol.ProtocolUtils;
-import com.velocitypowered.proxy.protocol.packet.UpdateTeamsPacket;
-import com.velocitypowered.proxy.protocol.packet.chat.ComponentHolder;
-import io.netty.buffer.ByteBuf;
-import net.kyori.adventure.text.Component;
-
-import java.util.List;
-
-public class UpdateTeamsPacket21 extends UpdateTeamsPacket {
-
-    private String name;
-    private Mode mode;
-    private Component displayName;
-    private Component prefix;
-    private Component suffix;
-    private NameTagVisibility nameTagVisibility;
-    private CollisionRule collisionRule;
-    private int color;
-    private byte friendlyFlags;
-    private List<String> players;
-
-    public UpdateTeamsPacket21(String name, Mode mode, Component displayName, Component prefix, Component suffix, NameTagVisibility nameTagVisibility, CollisionRule collisionRule, int color, byte friendlyFlags, List<String> players) {
-        super(name, mode, displayName, prefix, suffix, nameTagVisibility, collisionRule, color, friendlyFlags, players);
-        this.name = name;
-        this.mode = mode;
-        this.displayName = displayName;
-        this.prefix = prefix;
-        this.suffix = suffix;
-        this.nameTagVisibility = nameTagVisibility;
-        this.collisionRule = collisionRule;
-        this.color = color;
-        this.friendlyFlags = friendlyFlags;
-        this.players = players;
-    }
-
-    @Override
-    public void encode(ByteBuf byteBuf, ProtocolUtils.Direction direction, ProtocolVersion protocolVersion) {
-        ProtocolUtils.writeString(byteBuf, this.name);
-        byteBuf.writeByte(this.mode.ordinal());
-        switch (this.mode) {
-            case CREATE:
-            case UPDATE:
-                (new ComponentHolder(protocolVersion, this.displayName)).write(byteBuf);
-                if (protocolVersion.lessThan(ProtocolVersion.MINECRAFT_1_13)) {
-                    (new ComponentHolder(protocolVersion, this.prefix)).write(byteBuf);
-                    (new ComponentHolder(protocolVersion, this.suffix)).write(byteBuf);
-                }
-
-                byteBuf.writeByte(this.friendlyFlags);
-                if (protocolVersion.noLessThan(ProtocolVersion.MINECRAFT_1_21_5)) {
-                    ProtocolUtils.writeVarInt(byteBuf, this.nameTagVisibility.ordinal());
-                    ProtocolUtils.writeVarInt(byteBuf, this.collisionRule.ordinal());
-                } else {
-                    ProtocolUtils.writeString(byteBuf, this.nameTagVisibility.getValue());
-                    ProtocolUtils.writeString(byteBuf, this.collisionRule.getValue());
-                }
-                if (protocolVersion.greaterThan(ProtocolVersion.MINECRAFT_1_12_2)) {
-                    ProtocolUtils.writeVarInt(byteBuf, this.color);
-                    (new ComponentHolder(protocolVersion, this.prefix)).write(byteBuf);
-                    (new ComponentHolder(protocolVersion, this.suffix)).write(byteBuf);
-                } else {
-                    byteBuf.writeByte((byte) this.color);
-                }
-
-                ProtocolUtils.writeVarInt(byteBuf, this.players.size());
-
-                for (String player : this.players) {
-                    ProtocolUtils.writeString(byteBuf, player);
-                }
-                break;
-            case ADD_PLAYER:
-            case REMOVE_PLAYER:
-                ProtocolUtils.writeVarInt(byteBuf, this.players.size());
-
-                for (String player : this.players) {
-                    ProtocolUtils.writeString(byteBuf, player);
-                }
-            case REMOVE:
-        }
-    }
-}

VelocityCore/src/de/steamwar/velocitycore/tablist/UpdateTeamsPacketImpl.java

@@ -0,0 +1,76 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.velocitycore.tablist;
+
+import com.velocitypowered.api.network.ProtocolVersion;
+import com.velocitypowered.proxy.protocol.ProtocolUtils;
+import com.velocitypowered.proxy.protocol.packet.UpdateTeamsPacket;
+import com.velocitypowered.proxy.protocol.packet.chat.ComponentHolder;
+import io.netty.buffer.ByteBuf;
+import net.kyori.adventure.text.Component;
+
+import java.util.List;
+
+public class UpdateTeamsPacketImpl extends UpdateTeamsPacket {
+
+    public UpdateTeamsPacketImpl(String name, Mode mode, Component displayName, Component prefix, Component suffix, NameTagVisibility nameTagVisibility, CollisionRule collisionRule, int color, byte friendlyFlags, List<String> players) {
+        super(name, mode, displayName, prefix, suffix, nameTagVisibility, collisionRule, color, friendlyFlags, players);
+    }
+
+    @Override
+    public void encode(ByteBuf byteBuf, ProtocolUtils.Direction direction, ProtocolVersion protocolVersion) {
+        ProtocolUtils.writeString(byteBuf, name);
+        byteBuf.writeByte(mode.ordinal());
+
+        switch (mode) {
+            case CREATE, UPDATE:
+                new ComponentHolder(protocolVersion, displayName).write(byteBuf);
+                if (protocolVersion.lessThan(ProtocolVersion.MINECRAFT_1_13)) {
+                    new ComponentHolder(protocolVersion, prefix).write(byteBuf);
+                    new ComponentHolder(protocolVersion, suffix).write(byteBuf);
+                }
+
+                byteBuf.writeByte(friendlyFlags);
+                if (protocolVersion.noLessThan(ProtocolVersion.MINECRAFT_1_21_5)) {
+                    ProtocolUtils.writeVarInt(byteBuf, nameTagVisibility.ordinal());
+                    ProtocolUtils.writeVarInt(byteBuf, collisionRule.ordinal());
+                } else {
+                    ProtocolUtils.writeString(byteBuf, nameTagVisibility.getValue());
+                    ProtocolUtils.writeString(byteBuf, collisionRule.getValue());
+                }
+                if (protocolVersion.greaterThan(ProtocolVersion.MINECRAFT_1_12_2)) {
+                    ProtocolUtils.writeVarInt(byteBuf, color);
+                    new ComponentHolder(protocolVersion, prefix).write(byteBuf);
+                    new ComponentHolder(protocolVersion, suffix).write(byteBuf);
+                } else {
+                    byteBuf.writeByte((byte) color);
+                }
+                // Fallthrough since players are at the end of the packet!
+            case ADD_PLAYER, REMOVE_PLAYER:
+                ProtocolUtils.writeVarInt(byteBuf, players.size());
+                for (String player : players) {
+                    ProtocolUtils.writeString(byteBuf, player);
+                }
+                break;
+            case REMOVE:
+                break;
+        }
+    }
+}

VelocityCore/src/de/steamwar/velocitycore/util/SteamwarPrefix.java

@@ -0,0 +1,48 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.velocitycore.util;
+
+import de.steamwar.sql.SteamwarUser;
+import de.steamwar.sql.UserConfig;
+import lombok.experimental.UtilityClass;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@UtilityClass
+public class SteamwarPrefix {
+    private static final String PREFIX_MODE_CONFIG = "chatprefix";
+    private static final String PREFIX_MODE_SW = "SW";
+
+    private static final Map<SteamwarUser, Boolean> usesSwPrefix = new HashMap<>();
+
+    public static boolean usesSWPrefix(SteamwarUser user) {
+        return usesSwPrefix.computeIfAbsent(user, u -> PREFIX_MODE_SW.equals(UserConfig.getConfig(u.getId(), PREFIX_MODE_CONFIG)));
+    }
+
+    public static void setSWPrefix(SteamwarUser user, boolean preferSW) {
+        UserConfig.updatePlayerConfig(user.getId(), PREFIX_MODE_CONFIG, preferSW ? PREFIX_MODE_SW : null);
+        usesSwPrefix.put(user, preferSW);
+    }
+
+    public static void clearCache() {
+        usesSwPrefix.clear();
+    }
+}

buildSrc/src/steamwar.devserver.gradle

@@ -49,6 +49,10 @@ class DevServer extends DefaultTask {
     @Optional
     Map<String, String> dParams = new HashMap<>()
 
+    @Input
+    @Optional
+    String jvmArgs = null
+
     @Input
     @Optional
     String checkpointFolder = null
@@ -82,6 +86,7 @@ class DevServer extends DefaultTask {
 
             if (worldName == null) worldName = properties.get("worldName")
             host = properties.get("host")
+            debugPort = new Random().nextInt(5001, 10000)
 
             if (host == null) {
                 throw new GradleException("Please supply the 'host' in a 'steamwar.properties' files either in this project dir or any parent project!")
@@ -90,6 +95,7 @@ class DevServer extends DefaultTask {
         doLast {
             setupTemplate(template)
             uploadDependencies()
+            startDebugPort()
             startDevServer()
         }
         finalizedBy(new Finalizer())
@@ -101,6 +107,9 @@ class DevServer extends DefaultTask {
     @Internal
     String host
 
+    @Internal
+    int debugPort
+
     @Internal
     Boolean running = true
 
@@ -209,6 +218,17 @@ class DevServer extends DefaultTask {
         }
     }
 
+    void startDebugPort() {
+        def process = new ProcessBuilder("ssh", host, "-L", "5005:localhost:$debugPort").start()
+        def processOutput = new BufferedReader(new InputStreamReader(process.inputStream))
+        new Thread({
+            while (running) {
+            }
+            processOutput.close()
+            process.errorStream.close()
+        }).start()
+    }
+
     void startDevServer() {
         def devPy = new StringBuilder().append("dev.py")
         if (port != null) devPy.append(" --port $port")
@@ -221,6 +241,8 @@ class DevServer extends DefaultTask {
             devPy.append(" -D${dParam.key}=${dParam.value}")
         }
         devPy.append(" $template")
+        devPy.append(" -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:$debugPort")
+        if (jvmArgs != null) devPy.append(" $jvmArgs")
         println("Starting $template with command ${devPy.toString()}")
 
         def process = new ProcessBuilder("ssh", host, "-T", devPy.toString()).start()
@@ -256,6 +278,19 @@ class DevServer extends DefaultTask {
     }
 }
 
+class VelocityServer extends DevServer {
+    @Input
+    @Optional
+    Boolean packetDecodeLogging = false
+
+    VelocityServer() {
+        super()
+        doFirst {
+            if(packetDecodeLogging) dParams.put("velocity.packet-decode-logging", "true")
+        }
+    }
+}
+
 class FightServer extends DevServer {
 
     @Input