Revert "Remove deprecated world management commands and associated SQL logic"

This reverts commit a7adfe37

Signed-off-by: Chaoscaot <max@maxsp.de>

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

@@ -133,7 +133,12 @@ public class BauSystem extends JavaPlugin implements Listener {
 
         Bukkit.getWorlds().get(0).setGameRule(GameRule.SEND_COMMAND_FEEDBACK, false);
 
-        String identifier = BauServerInfo.getOwnerUser().getUUID().toString().replace("-", "");
+        String identifier;
+        if (BauServerInfo.getWorldId() != null) {
+            identifier = BauServerInfo.getWorldId().toString().replace("-", "");
+        } else {
+            identifier = BauServerInfo.getOwnerUser().getUUID().toString().replace("-", "");
+        }
         WorldIdentifier.set("bau/" + Core.getVersion() + "/" + identifier);
     }
 
@@ -224,4 +229,4 @@ public class BauSystem extends JavaPlugin implements Listener {
         AtomicReference<BukkitTask> task = new AtomicReference<>();
         task.set(runTaskTimer(plugin, () -> consumer.accept(task.get()), delay, period));
     }
-}
+}

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/Permission.java

@@ -60,11 +60,16 @@ public enum Permission {
     }
 
     public boolean hasPermission(Player member) {
-        if (SteamwarUser.get(member.getUniqueId()).getId() == BauServer.getInstance().getOwnerID()) {
+        SteamwarUser steamwarUser = SteamwarUser.get(member.getUniqueId());
+        BauServer server = BauServer.getInstance();
+        if (!server.isTeamWorld() && steamwarUser.getId() == server.getOwnerID()) {
             return this != SPECTATOR;
         }
-        BauweltMember bauweltMember = BauweltMember.getBauMember(BauServer.getInstance().getOwner(), member.getUniqueId());
+        if (server.isTeamWorld() && steamwarUser.getTeam() == server.getTeamID()) {
+            return this != SPECTATOR;
+        }
+        BauweltMember bauweltMember = BauweltMember.getBauMember(server.getWorldID(), steamwarUser.getId());
         if (bauweltMember == null) return this == SPECTATOR;
         return permissionPredicate.test(bauweltMember);
     }
-}
+}

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/config/BauServer.java

@@ -34,16 +34,41 @@ public class BauServer {
     }
 
     private Integer owner;
+    private UUID world;
+    private Integer team;
 
     public UUID getOwner() {
-        return SteamwarUser.byId(getOwnerID()).getUUID();
+        Integer ownerId = getOwnerID();
+        return ownerId == null ? null : SteamwarUser.byId(ownerId).getUUID();
     }
 
-    public int getOwnerID() {
+    public Integer getOwnerID() {
         //Lazy loading to improve startup time of the server in 1.15
         if (owner == null) {
             owner = BauServerInfo.getOwnerId();
         }
         return owner;
     }
-}
+
+    public boolean hasOwner() {
+        return getOwnerID() != null;
+    }
+
+    public UUID getWorldID() {
+        if (world == null) {
+            world = BauServerInfo.getWorldId();
+        }
+        return world;
+    }
+
+    public Integer getTeamID() {
+        if (team == null) {
+            team = BauServerInfo.getTeamId();
+        }
+        return team;
+    }
+
+    public boolean isTeamWorld() {
+        return getTeamID() != null;
+    }
+}

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/bau/BauInfoBauGuiItem.java

@@ -47,7 +47,7 @@ public class BauInfoBauGuiItem extends BauGuiItem {
     @Override
     public ItemStack getItem(Player player) {
         SWItem itemStack;
-        if (!player.getName().endsWith("⍇")) {
+        if (!player.getName().endsWith("⍇") && !BauServer.getInstance().isTeamWorld()) {
             itemStack = SWItem.getPlayerSkull(SteamwarUser.get(BauServer.getInstance().getOwner()).getUserName());
         } else {
             itemStack = new SWItem(Material.PLAYER_HEAD, "");

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/bau/InfoCommand.java

@@ -47,7 +47,9 @@ public class InfoCommand extends SWCommand {
 
     @Register(description = "BAU_INFO_COMMAND_HELP")
     public void genericCommand(Player p) {
-        BauSystem.MESSAGE.send("BAU_INFO_COMMAND_OWNER", p, SteamwarUser.byId(bauServer.getOwnerID()).getUserName());
+        if (!bauServer.isTeamWorld()) {
+            BauSystem.MESSAGE.send("BAU_INFO_COMMAND_OWNER", p, SteamwarUser.byId(bauServer.getOwnerID()).getUserName());
+        }
         Region region = Region.getRegion(p.getLocation());
         for (Flag flag : Flag.getFlags()) {
             if (!region.getRegionData().has(flag).isApplicable()) continue;
@@ -58,7 +60,7 @@ public class InfoCommand extends SWCommand {
         }
 
         if (Permission.BUILD.hasPermission(p)) {
-            List<BauweltMember> members = BauweltMember.getMembers(bauServer.getOwnerID());
+            List<BauweltMember> members = BauweltMember.getWorldMembers(bauServer.getWorldID());
             Map<Permission, List<BauweltMember>> memberByPermission = new HashMap<>();
             members.forEach(member -> {
                 if (Permission.SUPERVISOR.hasPermission(member)) {

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/region/ColorCommand.java

@@ -20,6 +20,7 @@
 package de.steamwar.bausystem.features.region;
 
 import de.steamwar.bausystem.BauSystem;
+import de.steamwar.bausystem.Permission;
 import de.steamwar.bausystem.config.BauServer;
 import de.steamwar.bausystem.region.Region;
 import de.steamwar.bausystem.region.RegionUtils;
@@ -83,6 +84,9 @@ public class ColorCommand extends SWCommand {
     @ClassValidator(value = Player.class, local = true)
     public TypeValidator<Player> validator() {
         return (commandSender, player, messageSender) -> {
+            if (bauServer.isTeamWorld()) {
+                return !messageSender.send(!Permission.SUPERVISOR.hasPermission(player), "NO_PERMISSION");
+            }
             return !messageSender.send(!bauServer.getOwner().equals(player.getUniqueId()), "NO_PERMISSION");
         };
     }

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/region/ResetCommand.java

@@ -68,7 +68,7 @@ public class ResetCommand extends SWCommand {
         Region region = regionCheck(p);
         if (region == null) return;
 
-        if (!p.getUniqueId().equals(bauServer.getOwner())) {
+        if (bauServer.hasOwner() && !p.getUniqueId().equals(bauServer.getOwner())) {
             if (Punishment.isPunished(SteamwarUser.get(bauServer.getOwner()), Punishment.PunishmentType.NoSchemReceiving, punishment -> BauSystem.MESSAGE.send("REGION_TB_NO_SCHEMRECEIVING", p, punishment.getEndTime()))) {
                 return;
             }

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/region/TestblockCommand.java

@@ -91,7 +91,7 @@ public class TestblockCommand extends SWCommand {
             }
         }
 
-        if (!p.getUniqueId().equals(bauServer.getOwner())) {
+        if (bauServer.hasOwner() && !p.getUniqueId().equals(bauServer.getOwner())) {
             if (Punishment.isPunished(SteamwarUser.get(bauServer.getOwner()), Punishment.PunishmentType.NoSchemReceiving, punishment -> BauSystem.MESSAGE.send("REGION_TB_NO_SCHEMRECEIVING", p, punishment.getEndTime()))) {
                 return;
             }

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

@@ -38,6 +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/world/AntiBauAddMemberFix.java

@@ -20,6 +20,7 @@
 package de.steamwar.bausystem.features.world;
 
 import de.steamwar.bausystem.BauSystem;
+import de.steamwar.bausystem.Permission;
 import de.steamwar.bausystem.config.BauServer;
 import de.steamwar.core.CRIUWakeupEvent;
 import de.steamwar.linkage.Linked;
@@ -36,12 +37,13 @@ public class AntiBauAddMemberFix implements Listener {
     @EventHandler(priority = EventPriority.LOW)
     public void onPlayerJoin(PlayerJoinEvent event) {
         if (BauSystem.DEV_SERVER) return;
-        if (event.getPlayer().getUniqueId().equals(BauServer.getInstance().getOwner())) {
+        if (Permission.SUPERVISOR.hasPermission(event.getPlayer())) {
             return;
         }
-        if (BauweltMember.getBauMember(BauServer.getInstance().getOwner(), event.getPlayer().getUniqueId()) == null) {
+        if (BauweltMember.getBauMember(BauServer.getInstance().getWorldID(), event.getPlayer().getUniqueId()) == null) {
             event.getPlayer().kickPlayer("");
-            throw new SecurityException("The player " + event.getPlayer().getName() + " joined on the server of " + SteamwarUser.byId(BauServer.getInstance().getOwnerID()).getUserName() + " without being added!");
+            String owner = BauServer.getInstance().isTeamWorld() ? "team " + BauServer.getInstance().getTeamID() : SteamwarUser.byId(BauServer.getInstance().getOwnerID()).getUserName();
+            throw new SecurityException("The player " + event.getPlayer().getName() + " joined on the server of " + owner + " without being added!");
         }
     }
 

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

@@ -33,7 +33,7 @@ public class AxiomPermissionCheck implements Listener {
 
     @EventHandler
     public void onAxiomHandshake(AxiomHandshakeEvent event) {
-        if (Permission.SUPERVISOR.hasPermission(event.getPlayer()) || BauServer.getInstance().getOwner().equals(event.getPlayer().getUniqueId())) {
+        if (Permission.SUPERVISOR.hasPermission(event.getPlayer()) || (BauServer.getInstance().hasOwner() && BauServer.getInstance().getOwner().equals(event.getPlayer().getUniqueId()))) {
             event.setMaxBufferSize(Short.MAX_VALUE);
             return;
         }

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

@@ -28,7 +28,7 @@ import de.steamwar.data.BauLockState;
 import de.steamwar.linkage.Linked;
 import de.steamwar.network.packets.PacketHandler;
 import de.steamwar.network.packets.server.BaulockUpdatePacket;
-import de.steamwar.sql.UserConfig;
+import de.steamwar.sql.SteamwarWorld;
 import lombok.Getter;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
@@ -37,13 +37,13 @@ import org.bukkit.event.Listener;
 @Linked
 public class BauLockStateScoreboard extends PacketHandler implements ScoreboardElement, Listener {
 
-    private static final String BAU_LOCK_CONFIG_NAME = "baulockstate";
-
     @Getter
     private BauLockState lockState = loadLockState();
 
     private BauLockState loadLockState() {
-        String state = UserConfig.getConfig(BauServer.getInstance().getOwner(), BAU_LOCK_CONFIG_NAME);
+        if (BauServer.getInstance().isTeamWorld()) return BauLockState.OPEN;
+        SteamwarWorld world = SteamwarWorld.getWorld(BauServer.getInstance().getWorldID());
+        String state = world == null ? null : world.getLockState();
         return state == null ? BauLockState.OPEN : BauLockState.valueOf(state);
     }
 
@@ -69,6 +69,7 @@ public class BauLockStateScoreboard extends PacketHandler implements ScoreboardE
 
     @Override
     public String get(Region region, Player p) {
+        if (BauServer.getInstance().isTeamWorld()) return null;
         if (!BauServer.getInstance().getOwner().equals(p.getUniqueId())) {
             return null;
         }

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/KickallCommand.java

@@ -42,7 +42,11 @@ public class KickallCommand extends SWCommand {
         if (!Permission.OWNER.hasPermission(player)) return;
 
         Bukkit.getOnlinePlayers().forEach(p -> {
-            if (!bauServer.getOwner().equals(p.getUniqueId())) p.kickPlayer("");
+            if (bauServer.isTeamWorld()) {
+                if (!Permission.SUPERVISOR.hasPermission(p)) p.kickPlayer("");
+            } else if (!bauServer.getOwner().equals(p.getUniqueId())) {
+                p.kickPlayer("");
+            }
         });
     }
 }

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

@@ -39,6 +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;
@@ -142,17 +143,14 @@ public class SpectatorListener implements Listener {
     public void onPlayerJoin(PlayerJoinEvent event) {
         enableOrDisableTechhider();
         if (BauSystem.DEV_SERVER) return;
-        if (event.getPlayer().getUniqueId().equals(BauServer.getInstance().getOwner())) {
+        if (Permission.SUPERVISOR.hasPermission(event.getPlayer())) {
             return;
         }
-        BauweltMember bauweltMember = BauweltMember.getBauMember(BauServer.getInstance().getOwner(), event.getPlayer().getUniqueId());
+        BauweltMember bauweltMember = BauweltMember.getBauMember(BauServer.getInstance().getWorldID(), event.getPlayer().getUniqueId());
         if (bauweltMember == null) {
             event.getPlayer().kickPlayer("");
             return;
         }
-        if (Permission.SUPERVISOR.hasPermission(event.getPlayer())) {
-            return;
-        }
         if (!anySupervisorOnline(null)) {
             Bukkit.getScheduler().runTaskLater(BauSystem.getInstance(), () -> {
                 event.getPlayer().kickPlayer("");

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

@@ -40,6 +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;

CLI/src/Main.kt

@@ -11,13 +11,23 @@ import de.steamwar.commands.profiler.ProfilerCommand
 import de.steamwar.commands.user.UserCommand
 import de.steamwar.commands.user.UserInfoCommand
 import de.steamwar.commands.user.UserSearchCommand
+import de.steamwar.commands.world.MigrationCommand
+import de.steamwar.commands.world.SaveToStorageCommand
+import de.steamwar.commands.world.TemplateCommand
+import de.steamwar.commands.world.TemplateCreateCommand
+import de.steamwar.commands.world.WorldCommand
 
 fun main(args: Array<String>) =
     SteamWar()
         .subcommands(
             DatabaseCommand().subcommands(InfoCommand(), ResetCommand()),
             UserCommand().subcommands(UserInfoCommand(), UserSearchCommand()),
+            WorldCommand().subcommands(
+                MigrationCommand(),
+                SaveToStorageCommand(),
+                TemplateCommand().subcommands(TemplateCreateCommand())
+            ),
             DevCommand(),
             ProfilerCommand()
         )
-        .main(args)
+        .main(args)

CLI/src/commands/world/MigrationCommand.kt

@@ -0,0 +1,243 @@
+package de.steamwar.commands.world
+
+import com.github.ajalt.clikt.core.CliktCommand
+import de.steamwar.db.Database
+import de.steamwar.sql.SteamwarUser
+import de.steamwar.sql.SteamwarWorld
+import de.steamwar.sql.UserConfig
+import org.jetbrains.exposed.v1.jdbc.transactions.transaction
+import java.io.File
+import java.sql.SQLException
+import java.util.UUID
+
+class MigrationCommand : CliktCommand(name = "migrate") {
+    private val userWorldPattern = Regex("""userworlds(\d+)""")
+    private val builderWorldPattern = Regex("""builder(\d+)""")
+    private val trailingVersionPattern = Regex("""(\d+)$""")
+
+    override fun run() {
+        Database.ensureConnected()
+
+        val bau = migrateBauWorlds()
+        val builder = migrateBuilderWorlds()
+        val arena = migrateArenaWorlds()
+        migrateBauLockConfig()
+        migrateBauweltMembers()
+
+        echo("Imported ${bau.imported} build worlds, skipped ${bau.skipped}, missing users ${bau.missingOwner}.")
+        echo("Imported ${builder.imported} builder worlds, skipped ${builder.skipped}.")
+        echo("Imported ${arena.imported} arena worlds, skipped ${arena.skipped}.")
+        echo("World migration completed.")
+    }
+
+    private fun migrateBauWorlds(): MigrationStats {
+        val stats = MigrationStats()
+        val worldsRoot = File("/worlds")
+        worldsRoot.listFiles { file -> file.isDirectory && userWorldPattern.matches(file.name) }
+            ?.forEach { versionFolder ->
+                val version = userWorldPattern.matchEntire(versionFolder.name)!!.groupValues[1].toInt()
+                versionFolder.listFiles { file -> file.isDirectory && isWorldDirectory(file) }
+                    ?.sortedBy { it.name }
+                    ?.forEach { legacyWorld ->
+                        val owner = legacyWorld.ownerUser()
+                        if (owner == null) {
+                            stats.missingOwner++
+                            echo("Skipped build world ${legacyWorld.path}: no matching user.")
+                            return@forEach
+                        }
+
+                        val lockState = UserConfig.getConfig(owner.id.value, BAU_LOCK_CONFIG_NAME)
+                        val world = SteamwarWorld.getOrCreateBauWorld(owner, owner.userName, version, legacyWorld)
+                        if (world.lockState == null && lockState != null) {
+                            world.changeLockState(lockState)
+                        }
+                        stats.imported++
+                    }
+            } ?: run {
+            stats.skipped++
+            echo("Skipped build worlds: /worlds does not exist.")
+        }
+        return stats
+    }
+
+    private fun migrateBuilderWorlds(): MigrationStats {
+        val stats = MigrationStats()
+        val worldsRoot = File("/worlds")
+        worldsRoot.listFiles { file -> file.isDirectory && builderWorldPattern.matches(file.name) }
+            ?.forEach { versionFolder ->
+                val version = builderWorldPattern.matchEntire(versionFolder.name)!!.groupValues[1].toInt()
+                versionFolder.listFiles { file -> file.isDirectory && isWorldDirectory(file) }
+                    ?.sortedBy { it.name }
+                    ?.forEach { legacyWorld ->
+                        SteamwarWorld.getOrCreateBuilderWorld(legacyWorld.name, version, legacyWorld)
+                        stats.imported++
+                    }
+            } ?: run {
+            stats.skipped++
+            echo("Skipped builder worlds: /worlds does not exist.")
+        }
+        return stats
+    }
+
+    private fun migrateArenaWorlds(): MigrationStats {
+        val stats = MigrationStats()
+        val configs = parseGameModeConfigs(File("/configs/GameModes"))
+        if (configs.isEmpty()) {
+            stats.skipped++
+            echo("Skipped arena worlds: no game mode configs found in /configs/GameModes.")
+            return stats
+        }
+
+        for (config in configs) {
+            val version = trailingVersionPattern.find(config.serverFolder)?.value?.toIntOrNull()
+            if (version == null) {
+                stats.skipped++
+                echo("Skipped arena mode ${config.modeName}: server folder '${config.serverFolder}' has no version suffix.")
+                continue
+            }
+
+            val arenaRoot = File("/servers/${config.serverFolder}/arenas")
+            for (map in config.maps) {
+                val legacyWorld = File(arenaRoot, map)
+                if (!isWorldDirectory(legacyWorld)) {
+                    stats.skipped++
+                    continue
+                }
+
+                SteamwarWorld.getOrCreateArenaWorld(config.modeName, map, version, legacyWorld)
+                stats.imported++
+            }
+        }
+
+        return stats
+    }
+
+    private fun migrateBauLockConfig() {
+        transaction(Database.db) {
+            exec(
+                """
+                UPDATE `world` w
+                JOIN `UserConfig` uc ON uc.`User` = w.`Owner` AND uc.`Config` = 'baulockstate'
+                SET w.`LockState` = uc.`Value`
+                WHERE w.`Owner` IS NOT NULL AND w.`LockState` IS NULL
+                """.trimIndent()
+            )
+        }
+    }
+
+    private fun migrateBauweltMembers() {
+        if (!columnExists("BauweltMember", "WorldID") || !columnExists("BauweltMember", "BauweltID")) {
+            echo("Skipped BauweltMember data migration: expected WorldID and BauweltID columns are not both present.")
+            return
+        }
+
+        execIgnore(
+            """
+            INSERT IGNORE INTO `BauweltMember` (`WorldID`, `MemberID`, `Build`, `WorldEdit`, `World`)
+            SELECT w.`id`, bm.`MemberID`, bm.`Build`, bm.`WorldEdit`, bm.`World`
+            FROM `BauweltMember` bm
+            JOIN `world` w ON w.`Owner` = bm.`BauweltID` AND w.`Deleted` = 0
+            """.trimIndent(),
+            "Skipped BauweltMember data migration"
+        )
+    }
+
+    private fun parseGameModeConfigs(configRoot: File): List<ArenaMigrationConfig> {
+        if (!configRoot.isDirectory) return emptyList()
+
+        return configRoot.listFiles { file -> file.isFile && file.extension == "yml" && !file.name.endsWith(".kits.yml") }
+            ?.mapNotNull { file ->
+                val server = parseServerBlock(file)
+                val folder = server.folder ?: return@mapNotNull null
+                ArenaMigrationConfig(file.nameWithoutExtension, folder, server.maps)
+            }
+            ?: emptyList()
+    }
+
+    private fun parseServerBlock(file: File): ParsedServerBlock {
+        var inServer = false
+        var inMaps = false
+        var folder: String? = null
+        val maps = mutableListOf<String>()
+
+        file.readLines().forEach { line ->
+            val trimmed = line.trim()
+            if (trimmed.isEmpty() || trimmed.startsWith("#")) return@forEach
+
+            val indent = line.indexOfFirst { !it.isWhitespace() }.let { if (it == -1) 0 else it }
+            if (indent == 0) {
+                inServer = trimmed == "Server:"
+                inMaps = false
+                return@forEach
+            }
+
+            if (!inServer) return@forEach
+
+            when {
+                indent <= 2 && trimmed.startsWith("Folder:") -> folder = trimmed.substringAfter(":").cleanYamlValue()
+                indent <= 2 && trimmed.startsWith("Maps:") -> {
+                    val value = trimmed.substringAfter(":").trim()
+                    inMaps = true
+                    if (value.startsWith("[") && value.endsWith("]")) {
+                        maps += value.removePrefix("[").removeSuffix("]")
+                            .split(",")
+                            .map { it.cleanYamlValue() }
+                            .filter { it.isNotEmpty() }
+                        inMaps = false
+                    }
+                }
+                inMaps && trimmed.startsWith("-") -> maps += trimmed.removePrefix("-").cleanYamlValue()
+                inMaps && indent <= 2 -> inMaps = false
+            }
+        }
+
+        return ParsedServerBlock(folder, maps)
+    }
+
+    private fun File.ownerUser(): SteamwarUser? {
+        name.toIntOrNull()?.let { return SteamwarUser.byId(it) }
+        return runCatching { SteamwarUser.get(UUID.fromString(name)) }.getOrNull()
+    }
+
+    private fun isWorldDirectory(file: File): Boolean =
+        file.isDirectory && (File(file, "level.dat").isFile || File(file, "region").isDirectory)
+
+    private fun String.cleanYamlValue(): String =
+        trim().trim('"').trim('\'')
+
+    private fun columnExists(table: String, column: String): Boolean =
+        transaction(Database.db) {
+            exec("SHOW COLUMNS FROM `$table` LIKE '$column'") { result -> result.next() } ?: false
+        }
+
+    private fun execIgnore(sql: String, prefix: String) {
+        try {
+            transaction(Database.db) {
+                exec(sql)
+            }
+        } catch (e: SQLException) {
+            echo("$prefix: ${e.message}")
+        }
+    }
+
+    private data class MigrationStats(
+        var imported: Int = 0,
+        var skipped: Int = 0,
+        var missingOwner: Int = 0,
+    )
+
+    private data class ArenaMigrationConfig(
+        val modeName: String,
+        val serverFolder: String,
+        val maps: List<String>,
+    )
+
+    private data class ParsedServerBlock(
+        val folder: String?,
+        val maps: List<String>,
+    )
+
+    private companion object {
+        private const val BAU_LOCK_CONFIG_NAME = "baulockstate"
+    }
+}

CLI/src/commands/world/SaveToStorageCommand.kt

@@ -0,0 +1,30 @@
+package de.steamwar.commands.world
+
+import com.github.ajalt.clikt.core.CliktCommand
+import de.steamwar.db.Database
+import de.steamwar.sql.SteamwarWorld
+import java.time.LocalTime
+
+class SaveToStorageCommand : CliktCommand(name = "saveToStorage") {
+    override fun run() {
+        Database.ensureConnected()
+
+        var archived = 0
+        for (world in SteamwarWorld.getWorldsToArchive()) {
+            if (!beforeCutoff()) {
+                echo("Stopping before 04:00. Archived $archived worlds.")
+                return
+            }
+
+            if (world.archiveIfNeeded()) {
+                archived++
+                echo("Archived ${world.uuid} (${world.type}/${world.name}).")
+            }
+        }
+
+        echo("Storage save completed. Archived $archived worlds.")
+    }
+
+    private fun beforeCutoff(): Boolean =
+        LocalTime.now().isBefore(LocalTime.of(4, 0))
+}

CLI/src/commands/world/TemplateCommand.kt

@@ -0,0 +1,24 @@
+package de.steamwar.commands.world
+
+import com.github.ajalt.clikt.core.CliktCommand
+import com.github.ajalt.clikt.parameters.arguments.argument
+import com.github.ajalt.clikt.parameters.types.int
+import com.github.ajalt.clikt.parameters.types.path
+import de.steamwar.db.Database
+import de.steamwar.sql.SteamwarWorld
+
+class TemplateCommand : CliktCommand(name = "template") {
+    override fun run() = Unit
+}
+
+class TemplateCreateCommand : CliktCommand(name = "create") {
+    private val name by argument()
+    private val version by argument().int()
+    private val source by argument().path(canBeFile = false, mustExist = true)
+
+    override fun run() {
+        Database.ensureConnected()
+        SteamwarWorld.getOrCreateTemplateWorld(name, version, source.toFile())
+        echo("Template world '$name' created.")
+    }
+}

CLI/src/commands/world/WorldCommand.kt

@@ -0,0 +1,7 @@
+package de.steamwar.commands.world
+
+import com.github.ajalt.clikt.core.CliktCommand
+
+class WorldCommand : CliktCommand(name = "world") {
+    override fun run() = Unit
+}

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

@@ -19,7 +19,6 @@
 
 package de.steamwar.sql
 
-import de.steamwar.sql.BauweltMemberTable.bauweltId
 import de.steamwar.sql.internal.useDb
 import org.jetbrains.exposed.v1.core.and
 import org.jetbrains.exposed.v1.core.dao.id.CompositeID
@@ -32,45 +31,37 @@ import org.jetbrains.exposed.v1.jdbc.insertIgnore
 import java.util.*
 
 object BauweltMemberTable : CompositeIdTable("BauweltMember") {
-    val bauweltId = reference("BauweltID", SteamwarUserTable).index()
+    val worldId = reference("WorldID", WorldTable).index()
     val memberId = reference("MemberID", SteamwarUserTable).index()
     val build = bool("Build")
     val worldEdit = bool("WorldEdit")
     val world = bool("World")
 
-    override val primaryKey = PrimaryKey(bauweltId, memberId)
+    override val primaryKey = PrimaryKey(worldId, memberId)
 
     init {
-        addIdColumn(bauweltId)
+        addIdColumn(worldId)
         addIdColumn(memberId)
     }
 }
 
 class BauweltMember(id: EntityID<CompositeID>) : CompositeEntity(id) {
     companion object : CompositeEntityClass<BauweltMember>(BauweltMemberTable) {
-        private val cache = mutableMapOf<Int, BauweltMember>()
+        private val cache = mutableMapOf<Pair<UUID, Int>, BauweltMember>()
 
         private fun cache(member: BauweltMember) =
-            cache.put(member.memberID, member)
+            cache.put(member.worldID to member.memberID, member)
 
         @JvmStatic
         fun clear() =
             cache.clear()
 
         @JvmStatic
-        @Deprecated("Use addMember(ownerId: Int, newMemberId: Int)")
-        fun addMember(ownerId: UUID, newMemberId: UUID) =
-            addMember(SteamwarUser.get(ownerId)!!.id, SteamwarUser.get(newMemberId)!!.id)
-
-        @JvmStatic
-        fun addMember(ownerId: Int, newMemberId: Int) =
-            addMember(EntityID(ownerId, SteamwarUserTable), EntityID(newMemberId, SteamwarUserTable))
-
-        fun addMember(ownerId: EntityID<Int>, newMemberId: EntityID<Int>) =
+        fun addMember(worldId: UUID, newMemberId: Int) =
             useDb {
                 BauweltMemberTable.insertIgnore {
-                    it[bauweltId] = ownerId
-                    it[memberId] = newMemberId
+                    it[BauweltMemberTable.worldId] = EntityID(worldId, WorldTable)
+                    it[memberId] = EntityID(newMemberId, SteamwarUserTable)
                     it[build] = false
                     it[worldEdit] = false
                     it[world] = false
@@ -78,31 +69,32 @@ class BauweltMember(id: EntityID<CompositeID>) : CompositeEntity(id) {
             }
 
         @JvmStatic
-        @Deprecated("Use getBauMember(bauwelt: Int, member: Int)")
-        fun getBauMember(bauwelt: UUID, member: UUID) =
+        fun addMember(worldId: UUID, newMemberId: UUID) =
+            addMember(worldId, SteamwarUser.get(newMemberId)!!.id.value)
+
+        @JvmStatic
+        fun getBauMember(world: UUID, member: Int) =
+            cache[world to member]
+                ?: useDb {
+                    find { (BauweltMemberTable.worldId eq world) and (BauweltMemberTable.memberId eq member) }.firstOrNull()?.also { cache(it) }
+                }
+
+        @JvmStatic
+        fun getBauMember(world: UUID, member: UUID) =
+            getBauMember(world, SteamwarUser.get(member)!!.id.value)
+
+        @JvmStatic
+        fun getWorldMembers(world: UUID) =
             useDb {
-                find { (bauweltId eq SteamwarUser.get(bauwelt)!!.id) and (BauweltMemberTable.memberId eq SteamwarUser.get(member)!!.id) }.firstOrNull()?.also { cache(it) }
+                find { BauweltMemberTable.worldId eq world }.toList().also { it.forEach { cache(it) } }
             }
 
         @JvmStatic
-        fun getBauMember(bauwelt: Int, member: Int) =
-            useDb {
-                find { (bauweltId eq bauwelt) and (BauweltMemberTable.memberId eq member) }.firstOrNull()?.also { cache(it) }
-            }
-
-        @JvmStatic
-        @Deprecated("Use getMembers(bauwelt: Int)")
-        fun getMembers(bauwelt: UUID) =
-            getMembers(SteamwarUser.get(bauwelt)!!.id.value)
-
-        @JvmStatic
-        fun getMembers(bauwelt: Int) =
-            useDb {
-                find { bauweltId eq bauwelt }.toList().also { it.forEach { cache(it) } }
-            }
+        fun getMembers(world: UUID) =
+            getWorldMembers(world)
     }
 
-    val bauweltID by BauweltMemberTable.bauweltId.transform({ EntityID(it, SteamwarUserTable) }, { it.value })
+    val worldID by BauweltMemberTable.worldId.transform({ EntityID(it, WorldTable) }, { it.value })
     val memberID by BauweltMemberTable.memberId.transform({ EntityID(it, SteamwarUserTable) }, { it.value })
     private var worldEditInternal by BauweltMemberTable.worldEdit
     var worldEdit: Boolean
@@ -144,4 +136,4 @@ class BauweltMember(id: EntityID<CompositeID>) : CompositeEntity(id) {
         useDb {
             delete()
         }
-}
+}

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

@@ -50,6 +50,8 @@ enum class UserPerm {
     PUNISHMENTS,
     TICKET_LOG,
     BUILD,
+    BUILD_EXTRA_WORLDS,
+    BUILD_UNLIMITED_WORLDS,
     CHECK,
     MODERATION,
     ADMINISTRATION;
@@ -95,4 +97,4 @@ enum class UserPerm {
     }
 
     data class Prefix(val colorCode: String, val chatPrefix: String, val teamPrefix: Boolean = false)
-}
+}

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

@@ -0,0 +1,345 @@
+/*
+ *   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.sql
+
+import de.steamwar.sql.internal.useDb
+import org.jetbrains.exposed.v1.core.and
+import org.jetbrains.exposed.v1.core.dao.id.EntityID
+import org.jetbrains.exposed.v1.core.dao.id.java.UUIDTable
+import org.jetbrains.exposed.v1.core.eq
+import org.jetbrains.exposed.v1.core.not
+import org.jetbrains.exposed.v1.core.or
+import org.jetbrains.exposed.v1.core.SortOrder
+import org.jetbrains.exposed.v1.dao.Entity
+import org.jetbrains.exposed.v1.dao.EntityClass
+import org.jetbrains.exposed.v1.javatime.CurrentTimestamp
+import org.jetbrains.exposed.v1.javatime.timestamp
+import java.io.File
+import java.time.Instant
+import java.time.temporal.ChronoUnit
+import java.util.UUID
+
+object WorldTable : UUIDTable("world") {
+    val name = varchar("Name", 512)
+    val version = integer("Version")
+    val type = enumeration<WorldType>("Type")
+    val owner = reference("Owner", SteamwarUserTable).nullable()
+    val team = reference("Team", TeamTable).nullable()
+    val lockState = varchar("LockState", 32).nullable()
+    val deleted = bool("Deleted").default(false)
+    val created = timestamp("Created").defaultExpression(CurrentTimestamp)
+    val lastUsed = timestamp("LastUsed").defaultExpression(CurrentTimestamp)
+}
+
+enum class WorldType {
+    BAU,
+    BUILDER,
+    TEAM,
+    ARENA,
+    TEMPLATE,
+}
+
+class SteamwarWorld(id: EntityID<UUID>) : Entity<UUID>(id) {
+    var name by WorldTable.name
+        private set
+    var version by WorldTable.version
+        private set
+    var type by WorldTable.type
+        private set
+    var owner by WorldTable.owner
+        private set
+    var team by WorldTable.team
+        private set
+    var lockState by WorldTable.lockState
+        private set
+    var deleted by WorldTable.deleted
+        private set
+    val created by WorldTable.created
+    var lastUsed by WorldTable.lastUsed
+        private set
+
+    val archived: Boolean
+        get() = !storageDirectory.exists() && archiveFile.exists()
+
+    val shouldArchive: Boolean
+        get() = !archived && (deleted || lastUsed.plus(7, ChronoUnit.DAYS).isBefore(Instant.now()))
+
+    val uuid: UUID
+        get() = id.value
+
+    val storageDirectory: File
+        get() = File(WORLD_STORAGE, id.value.toString())
+
+    private val archiveFile: File
+        get() = File(ARCHIVE_WORLD_STORAGE, "${id.value}.zip")
+
+    @JvmOverloads
+    fun setupAndGetStoragePath(prototype: File? = null): String {
+        if (archived) {
+            loadFromArchive()
+        }
+
+        val needsInitialization = !storageDirectory.exists() || storageDirectory.list()?.isEmpty() == true
+        if (needsInitialization) {
+            if (prototype != null && prototype.exists()) {
+                prototype.copyRecursively(storageDirectory, overwrite = true)
+            } else {
+                storageDirectory.mkdirs()
+            }
+        }
+
+        useDb {
+            lastUsed = Instant.now()
+        }
+
+        return storageDirectory.path
+    }
+
+    fun markDeleted() = useDb {
+        deleted = true
+    }
+
+    fun rename(newName: String) = useDb {
+        name = newName
+    }
+
+    fun archiveIfNeeded(): Boolean {
+        if (!shouldArchive) return false
+
+        File(ARCHIVE_WORLD_STORAGE).mkdirs()
+        return archiveWorld() == 0
+    }
+
+    fun changeVersion(newVersion: Int) = useDb {
+        version = newVersion
+    }
+
+    fun changeLockState(newLockState: String?) = useDb {
+        lockState = newLockState
+    }
+
+    private fun archiveWorld() = ProcessBuilder("zip", "-u9oymrqq", "$ARCHIVE_WORLD_STORAGE/${id.value}.zip", id.value.toString())
+        .directory(File(WORLD_STORAGE))
+        .inheritIO()
+        .start()
+        .waitFor()
+
+
+    private fun loadFromArchive() = ProcessBuilder("unzip", "-qq", "-o", "$ARCHIVE_WORLD_STORAGE/${id.value}.zip", "-d", WORLD_STORAGE)
+        .inheritIO()
+        .start()
+        .waitFor()
+
+    companion object : EntityClass<UUID, SteamwarWorld>(WorldTable) {
+        const val WORLD_STORAGE = "/worlds/storage"
+        const val ARCHIVE_WORLD_STORAGE = "/mnt/storage/worlds/storage"
+        const val DEFAULT_BAU_WORLD_LIMIT = 3
+        const val EXTRA_BAU_WORLD_LIMIT = 10
+        const val TEAM_WORLD_LIMIT = 2
+
+        @JvmStatic
+        fun getWorld(uuid: UUID) = useDb {
+            findById(uuid)
+        }
+
+        @JvmStatic
+        fun getBauWorld(user: SteamwarUser, version: Int) = useDb {
+            find {
+                (WorldTable.owner eq user.id) and
+                        (WorldTable.version eq version) and
+                        (WorldTable.type eq WorldType.BAU) and
+                        not(WorldTable.deleted)
+            }.firstOrNull()
+        }
+
+        @JvmStatic
+        fun getBauWorld(user: SteamwarUser, name: String, version: Int) = useDb {
+            find {
+                (WorldTable.owner eq user.id) and
+                        (WorldTable.name eq name) and
+                        (WorldTable.version eq version) and
+                        (WorldTable.type eq WorldType.BAU) and
+                        not(WorldTable.deleted)
+            }.firstOrNull()
+        }
+
+        @JvmStatic
+        fun getBauWorlds(user: SteamwarUser) = useDb {
+            find {
+                (WorldTable.owner eq user.id) and
+                        (WorldTable.type eq WorldType.BAU) and
+                        not(WorldTable.deleted)
+            }.orderBy(WorldTable.created to SortOrder.ASC).toList()
+        }
+
+        @JvmStatic
+        fun countBauWorlds(user: SteamwarUser) = useDb {
+            find {
+                (WorldTable.owner eq user.id) and
+                        (WorldTable.type eq WorldType.BAU) and
+                        not(WorldTable.deleted)
+            }.count()
+        }
+
+        @JvmStatic
+        @JvmOverloads
+        fun getOrCreateBauWorld(user: SteamwarUser, version: Int, prototype: File? = null): SteamwarWorld =
+            getBauWorld(user, version) ?: createWorld(user, user.userName, version, WorldType.BAU, prototype)
+
+        @JvmStatic
+        @JvmOverloads
+        fun getOrCreateBauWorld(user: SteamwarUser, name: String, version: Int, prototype: File? = null): SteamwarWorld =
+            getBauWorld(user, name, version) ?: createWorld(user, name, version, WorldType.BAU, prototype)
+
+        @JvmStatic
+        fun getBuilderWorld(name: String, version: Int) = useDb {
+            find {
+                (WorldTable.name eq name) and
+                        (WorldTable.version eq version) and
+                        (WorldTable.type eq WorldType.BUILDER) and
+                        not(WorldTable.deleted)
+            }.firstOrNull()
+        }
+
+        @JvmStatic
+        fun getBuilderWorlds(version: Int) = useDb {
+            find {
+                (WorldTable.version eq version) and
+                        (WorldTable.type eq WorldType.BUILDER) and
+                        not(WorldTable.deleted)
+            }.toList()
+        }
+
+        @JvmStatic
+        @JvmOverloads
+        fun getOrCreateBuilderWorld(name: String, version: Int, prototype: File? = null): SteamwarWorld =
+            getBuilderWorld(name, version) ?: createWorld(null, name, version, WorldType.BUILDER, prototype)
+
+        @JvmStatic
+        fun getTeamWorld(team: Team, name: String, version: Int) = useDb {
+            find {
+                (WorldTable.team eq team.id) and
+                        (WorldTable.name eq name) and
+                        (WorldTable.version eq version) and
+                        (WorldTable.type eq WorldType.TEAM) and
+                        not(WorldTable.deleted)
+            }.firstOrNull()
+        }
+
+        @JvmStatic
+        fun getTeamWorlds(team: Team) = useDb {
+            find {
+                (WorldTable.team eq team.id) and
+                        (WorldTable.type eq WorldType.TEAM) and
+                        not(WorldTable.deleted)
+            }.orderBy(WorldTable.created to SortOrder.ASC).toList()
+        }
+
+        @JvmStatic
+        @JvmOverloads
+        fun getOrCreateTeamWorld(team: Team, name: String, version: Int, prototype: File? = null): SteamwarWorld =
+            getTeamWorld(team, name, version) ?: createWorld(null, name, version, WorldType.TEAM, prototype, team)
+
+        @JvmStatic
+        fun countTeamWorlds(team: Team) = useDb {
+            find {
+                (WorldTable.team eq team.id) and
+                        (WorldTable.type eq WorldType.TEAM) and
+                        not(WorldTable.deleted)
+            }.count()
+        }
+
+        @JvmStatic
+        fun getArenaWorld(mode: String, map: String, version: Int) = useDb {
+            find {
+                (WorldTable.name eq arenaWorldName(mode, map)) and
+                        (WorldTable.version eq version) and
+                        (WorldTable.type eq WorldType.ARENA) and
+                        not(WorldTable.deleted)
+            }.firstOrNull()
+        }
+
+        @JvmStatic
+        @JvmOverloads
+        fun getOrCreateArenaWorld(mode: String, map: String, version: Int, prototype: File? = null): SteamwarWorld =
+            getArenaWorld(mode, map, version) ?: createWorld(null, arenaWorldName(mode, map), version, WorldType.ARENA, prototype)
+
+        @JvmStatic
+        fun getTemplateWorld(name: String, version: Int) = useDb {
+            find {
+                (WorldTable.name eq name) and
+                        (WorldTable.version eq version) and
+                        (WorldTable.type eq WorldType.TEMPLATE) and
+                        not(WorldTable.deleted)
+            }.firstOrNull()
+        }
+
+        @JvmStatic
+        fun getTemplateWorlds() = useDb {
+            find {
+                (WorldTable.type eq WorldType.TEMPLATE) and
+                        not(WorldTable.deleted)
+            }.orderBy(WorldTable.name to SortOrder.ASC).toList()
+        }
+
+        @JvmStatic
+        fun getTemplateWorlds(version: Int) = useDb {
+            find {
+                (WorldTable.version eq version) and
+                        (WorldTable.type eq WorldType.TEMPLATE) and
+                        not(WorldTable.deleted)
+            }.orderBy(WorldTable.name to SortOrder.ASC).toList()
+        }
+
+        @JvmStatic
+        @JvmOverloads
+        fun getOrCreateTemplateWorld(name: String, version: Int, prototype: File? = null): SteamwarWorld =
+            getTemplateWorld(name, version) ?: createWorld(null, name, version, WorldType.TEMPLATE, prototype)
+
+        @JvmStatic
+        fun getAllActiveWorlds() = useDb {
+            find { not(WorldTable.deleted) }.toList()
+        }
+
+        @JvmStatic
+        fun getWorldsToArchive() = useDb {
+            find {
+                not(WorldTable.deleted) or (WorldTable.deleted eq true)
+            }.toList().filter { it.shouldArchive }
+        }
+
+        private fun arenaWorldName(mode: String, map: String) = "$mode/$map"
+
+        @JvmStatic
+        @JvmOverloads
+        fun createWorld(user: SteamwarUser?, name: String, version: Int, type: WorldType, prototype: File? = null, team: Team? = null): SteamwarWorld {
+            val world = useDb { new {
+                this.name = name
+                this.version = version
+                this.type = type
+                this.owner = user?.id
+                this.team = team?.id
+            } }
+
+            world.setupAndGetStoragePath(prototype)
+            return world
+        }
+    }
+}

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

@@ -110,6 +110,7 @@ public class FightSystem extends JavaPlugin {
 
         hullHider = new HullHider();
         techHider = new TechHiderWrapper(hullHider);
+        FightSystem.getHullHider().getHullMap().values().forEach(hull -> hull.fill(true));
 
 
         FileSource.startReplay();

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/FightWorld.java

@@ -68,6 +68,13 @@ public class FightWorld extends StateDependent {
     }
 
     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()))) {
@@ -77,14 +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/listener/ArrowStopper.java

@@ -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());

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/Recording.java

@@ -37,6 +37,7 @@ import de.steamwar.fightsystem.states.StateDependentListener;
 import de.steamwar.fightsystem.states.StateDependentTask;
 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;
@@ -124,7 +125,7 @@ public class Recording implements Listener {
 
             @Override
             public void disable() {
-                TinyProtocol.instance.removeFilter(blockPlacePacket, place);
+                TinyProtocol.instance.removeFilter(ServerboundUseItemPacket.class, place);
                 TinyProtocol.instance.removeFilter(blockDigPacket, dig);
             }
         }.register();
@@ -142,7 +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];
@@ -154,8 +155,6 @@ public class Recording implements Listener {
         return packet;
     }
 
-    public static final Class<?> blockPlacePacket = ServerboundUseItemPacket.class;
-
     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) {

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

@@ -165,6 +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();

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;
@@ -28,17 +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 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;
@@ -54,8 +44,6 @@ 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 {
 
@@ -79,10 +67,13 @@ public class HullHider implements Listener {
 
     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) {

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

@@ -22,7 +22,6 @@ 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;
@@ -31,6 +30,7 @@ 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.techhider.AccessPrivilegeProvider;
 import de.steamwar.techhider.TechHider;
 import lombok.Getter;
 import net.minecraft.core.Holder;
@@ -38,6 +38,11 @@ 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;
@@ -45,10 +50,12 @@ import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerQuitEvent;
 
+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 Listener {
 
@@ -56,11 +63,21 @@ public class TechHiderWrapper extends StateDependent implements Listener {
 
     @Getter
     private final ConcurrentHashMap<Player, Region> hiddenRegion = new ConcurrentHashMap<>();
-    private final TechHider techHider;
-
+    private final HullHider hullHider;
 
     public TechHiderWrapper(HullHider hullHider) {
-        super(ENABLED, FightState.Schem);
+        super(ENABLED, FightState.All);
+
+        this.hullHider = hullHider;
+
+        new StateDependentListener(ENABLED, FightState.All, this);
+        register();
+    }
+
+    @Override
+    public void enable() {
+        Set<BlockState> blockStatesToObfuscate = getBlockStatesToHideFromMaterials(Config.GameModeConfig.Techhider.HiddenBlocks);
+
         Set<Block> blocksToObfuscate = Config.GameModeConfig.Techhider.HiddenBlocks.stream()
                 .map(CraftMagicNumbers::getBlock)
                 .collect(Collectors.toUnmodifiableSet());
@@ -72,14 +89,19 @@ public class TechHiderWrapper extends StateDependent implements Listener {
             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()
+        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());
 
-        techHider = new TechHider(CraftMagicNumbers.getBlock(Config.GameModeConfig.Techhider.ObfuscateWith)) {
+        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);
@@ -87,41 +109,36 @@ public class TechHiderWrapper extends StateDependent implements Listener {
 
             @Override
             public boolean isPlayerPrivilegedToAccessBlock(Player p, int blockX, int blockY, int blockZ, Block block) {
-                Region hiddenRegion = getHiddenRegion(p);
-                return !hiddenRegion.inRegion(blockX, blockY, blockZ) || !blocksToObfuscate.contains(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$getEntityLookup().get(entityId);
+                net.minecraft.world.entity.Entity nmsEntity = ((CraftWorld) p.getWorld()).getHandle().moonrise$getEntityLookup().get(entityId);
 
-                if(nmsEntity != null) {
+                if (nmsEntity != null) {
                     return !hullHider.isBlockHidden(p, nmsEntity.getBlockX(), nmsEntity.getBlockY(), nmsEntity.getBlockZ());
-                }
-                else {
-                    return false;
+                } else {
+                    return true;
                 }
             }
 
             @Override
-            public boolean isPlayerPrivilegedToAccessBlocEntity(Player p, int blockX, int blockY, int blockZ, BlockEntityType<?> type) {
-                Region hiddenRegion = getHiddenRegion(p);
-                return !hiddenRegion.inRegion(blockX, blockY, blockZ) || !blockEntityTypeToObfuscate.contains(type);
+            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 isEveryonePrivilegedToAccessAllDataWithinChunk(int chunkX, int chunkZ) {
-                return getHiddenRegions().stream().allMatch(region -> region.chunkOutside(chunkX, chunkZ));
+            public boolean isPlayerPrivilegedToPerformAction(Player p) {
+                return p.getGameMode() != GameMode.SPECTATOR;
             }
-        };
-
-        new StateDependentListener(ENABLED, FightState.Schem, this);
-        register();
-    }
-
-    @Override
-    public void enable() {
-
+        });
     }
 
     @Override
@@ -164,10 +181,6 @@ public class TechHiderWrapper extends StateDependent implements Listener {
         });
     }
 
-    private Set<Region> getHiddenRegions() {
-        return Fight.teams().stream().map(FightTeam::getExtendRegion).collect(Collectors.toSet());
-    }
-
     private Region getHiddenRegion(Player player) {
         if (Config.isReferee(player)) return Region.EMPTY;
 
@@ -178,4 +191,27 @@ public class TechHiderWrapper extends StateDependent implements Listener {
 
         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/build.gradle.kts

@@ -60,7 +60,7 @@ tasks.register<FightServer>("WarGear21") {
     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

@@ -227,7 +227,7 @@ public class TinyProtocol {
         }
     }
 
-    public <T> void addFilter(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);
     }
 
@@ -235,8 +235,8 @@ public class TinyProtocol {
         packetFilters.getOrDefault(packetType, Collections.emptyList()).remove(filter);
     }
 
-    public void addGlobalClientboundFilter(BiFunction<Player, Object, Object> filter) {
-        globalClientboundFilters.add(filter);
+    public void addGlobalClientboundFilter(BiFunction<Player, Packet<?>, Object> filter) {
+        globalClientboundFilters.add((BiFunction) filter);
     }
 
     /**
@@ -453,7 +453,7 @@ public class TinyProtocol {
             try {
                 msg = filterPacket(player, msg);
 
-                if(msg instanceof Packet<?>) {
+                if (msg instanceof Packet<?>) {
                     for (BiFunction<Player, Object, Object> filter : globalClientboundFilters) {
                         msg = filter.apply(player, msg);
                         if (msg == null) break;

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.addFilter(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

@@ -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
@@ -17,18 +17,18 @@
  *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package de.steamwar.techhider;
+package de.steamwar.entity;
 
-import de.steamwar.Reflection;
-import net.minecraft.core.SectionPos;
-import net.minecraft.world.level.block.entity.BlockEntityType;
-import net.minecraft.world.level.block.entity.SignBlockEntity;
-import net.minecraft.world.level.block.state.BlockState;
 import org.bukkit.entity.Player;
 
-import java.util.ArrayList;
-import java.util.function.BiFunction;
+import java.util.function.BiConsumer;
 
-public class ProtocolWrapper {
-    public static final ProtocolWrapper impl = new ProtocolWrapper();
+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/providers/BauServerInfo.java

@@ -20,14 +20,54 @@
 package de.steamwar.providers;
 
 import de.steamwar.sql.SteamwarUser;
+import de.steamwar.sql.WorldType;
 import org.bukkit.Bukkit;
 
+import java.util.UUID;
+
 public class BauServerInfo {
     private static Integer bauOwner = null;
+    private static Integer bauTeam = null;
+    private static UUID bauWorld = null;
+    private static WorldType bauType = null;
 
     static {
+        String ownerProperty = System.getProperty("bauOwner");
+        if (ownerProperty != null && !ownerProperty.isBlank()) {
+            try {
+                bauOwner = Integer.parseInt(ownerProperty);
+            } catch (NumberFormatException ignored) {
+            }
+        }
+
+        String teamProperty = System.getProperty("bauTeam");
+        if (teamProperty != null && !teamProperty.isBlank()) {
+            try {
+                bauTeam = Integer.parseInt(teamProperty);
+            } catch (NumberFormatException ignored) {
+            }
+        }
+
+        String worldProperty = System.getProperty("bauWorld");
+        if (worldProperty != null && !worldProperty.isBlank()) {
+            try {
+                bauWorld = UUID.fromString(worldProperty);
+            } catch (IllegalArgumentException ignored) {
+            }
+        }
+
+        String typeProperty = System.getProperty("bauType");
+        if (typeProperty != null && !typeProperty.isBlank()) {
+            try {
+                bauType = WorldType.valueOf(typeProperty);
+            } catch (IllegalArgumentException ignored) {
+            }
+        }
+
         try {
-            bauOwner = Integer.parseInt(Bukkit.getWorlds().get(0).getName());
+            if (bauOwner == null) {
+                bauOwner = Integer.parseInt(Bukkit.getWorlds().get(0).getName());
+            }
         } catch (NumberFormatException ignored) {
         }
     }
@@ -37,11 +77,23 @@ public class BauServerInfo {
     }
 
     public static boolean isBauServer() {
-        return bauOwner != null;
+        return bauOwner != null || bauWorld != null || bauTeam != null;
     }
 
     public static SteamwarUser getOwnerUser() {
         if (bauOwner == null) return null;
         return SteamwarUser.byId(bauOwner);
     }
+
+    public static UUID getWorldId() {
+        return bauWorld;
+    }
+
+    public static Integer getTeamId() {
+        return bauTeam;
+    }
+
+    public static WorldType getWorldType() {
+        return bauType;
+    }
 }

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

@@ -19,17 +19,12 @@
 
 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;
 import net.minecraft.world.level.material.Fluids;
 import org.bukkit.Material;
-import org.bukkit.Registry;
-import org.bukkit.block.data.BlockData;
-import org.bukkit.block.data.Waterlogged;
 import org.bukkit.craftbukkit.util.CraftMagicNumbers;
 
 import java.util.HashSet;

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

@@ -22,9 +22,6 @@ package de.steamwar.techhider;
 import de.steamwar.Reflection;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
-import it.unimi.dsi.fastutil.ints.Int2IntMap;
-import it.unimi.dsi.fastutil.ints.Int2IntOpenHashMap;
-import it.unimi.dsi.fastutil.ints.IntArrayList;
 import net.minecraft.core.SectionPos;
 import net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData;
 import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
@@ -34,11 +31,10 @@ import net.minecraft.world.level.block.entity.BlockEntityType;
 import net.minecraft.world.level.block.state.BlockState;
 import org.bukkit.entity.Player;
 
-import java.util.*;
+import java.util.List;
 import java.util.function.UnaryOperator;
 
-
-public abstract class ChunkHider {
+public class ChunkHider {
     private static final UnaryOperator<Object> chunkPacketShallowCloner = ProtocolUtils.shallowCloneGenerator(ClientboundLevelChunkWithLightPacket.class);
     private static final UnaryOperator<Object> chunkDataShallowCloner = ProtocolUtils.shallowCloneGenerator(ClientboundLevelChunkPacketData.class);
 
@@ -54,16 +50,16 @@ public abstract class ChunkHider {
     private final int BLOCKS_PER_SECTION = 4096;
     private final int BIOMES_PER_SECTION = 64;
 
-    private final byte BITS_PER_LONG = 64;
-
     private final int blockIdUsedForHiding;
+    private final AccessPrivilegeProvider accessPrivilegeProvider;
 
-    public ChunkHider(Block blockUsedForObfuscation) {
-        blockIdUsedForHiding =  Block.BLOCK_STATE_REGISTRY.getId(blockUsedForObfuscation.defaultBlockState());
+    public ChunkHider(Block blockUsedForObfuscation, AccessPrivilegeProvider accessPrivilegeProvider) {
+        blockIdUsedForHiding = Block.BLOCK_STATE_REGISTRY.getId(blockUsedForObfuscation.defaultBlockState());
+        this.accessPrivilegeProvider = accessPrivilegeProvider;
     }
 
     private int getLongsRequiredToEncodeEntries(int bitsPerEntry, int entryCount) {
-        int entriesPerLong =  BITS_PER_LONG / bitsPerEntry;
+        int entriesPerLong = Long.SIZE / bitsPerEntry;
         int dataLengthAsLongCount = (entryCount + entriesPerLong - 1) / entriesPerLong;
 
         return dataLengthAsLongCount;
@@ -73,7 +69,7 @@ public abstract class ChunkHider {
         int dataLengthAsLongCount = getLongsRequiredToEncodeEntries(bitsPerEntry, entryCount);
         long[] dataArray = new long[dataLengthAsLongCount];
 
-        for(int i = 0; i < dataLengthAsLongCount; i++){
+        for (int i = 0; i < dataLengthAsLongCount; i++) {
             dataArray[i] = dataSource.readLong();
         }
 
@@ -96,22 +92,21 @@ public abstract class ChunkHider {
 
             byte bitsPerBlock = in.readByte();
 
-            if(bitsPerBlock == 0) {
+            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) {
+            } 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);
+                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++){
+                for (int i = 0; i < BLOCKS_PER_SECTION; i++) {
                     int palletReference = data.get(i);
                     resolvedData[i] = pallet[palletReference];
                 }
@@ -123,7 +118,7 @@ public abstract class ChunkHider {
 
                 out.writeShort(blockCount);
                 out.writeByte(15);
-                for(long rawDataSegment : reEncodedData) {
+                for (long rawDataSegment : reEncodedData) {
                     out.writeLong(rawDataSegment);
                 }
                 /*
@@ -156,9 +151,8 @@ public abstract class ChunkHider {
                     out.writeLong(rawDataSegment);
                 }*/
 
-            }
-            else {
-                long[] rawData = readSectionDataFromBuffer(in, bitsPerBlock,  BLOCKS_PER_SECTION);
+            } else {
+                long[] rawData = readSectionDataFromBuffer(in, bitsPerBlock, BLOCKS_PER_SECTION);
 
                 int[] blockData = resolveDirectBlockDataArray(rawData, bitsPerBlock);
 
@@ -169,7 +163,7 @@ public abstract class ChunkHider {
 
                 out.writeShort(blockCount);
                 out.writeByte(15);
-                for(long rawDataSegment : reEncodedData) {
+                for (long rawDataSegment : reEncodedData) {
                     out.writeLong(rawDataSegment);
                 }
             }
@@ -185,7 +179,7 @@ public abstract class ChunkHider {
         out.readBytes(data);
 
         List<Object> blockEntities = chunkBlockEntitiesDataField.get(chunkData);
-        List<Object> filteredBlockEntities = filterBlockEntities(player, blockEntities);
+        List<Object> filteredBlockEntities = filterBlockEntities(player, blockEntities, chunkX, chunkZ);
 
         return buildNewChunkPacket(packet, data, filteredBlockEntities);
 
@@ -203,15 +197,13 @@ public abstract class ChunkHider {
                     int worldZ = sectionZ + (SECTION_SPAN_SIZE * chunkZ);
 
                     int blockId = blockDataArray[blockDataIndex];
-                    BlockState blockState =  Block.BLOCK_STATE_REGISTRY.byId(blockId);
+                    BlockState blockState = Block.BLOCK_STATE_REGISTRY.byId(blockId);
                     Block block = blockState.getBlock();
 
 
-
-                    if(isPlayerPrivilegedToAccessPosition(player, worldX, worldY, worldZ) && isPlayerPrivilegedToAccessBlock(player, worldX, worldY, worldZ, block)) {
+                    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 {
+                    } else {
                         obfuscatedData[blockDataIndex] = blockIdUsedForHiding;
                     }
                 }
@@ -225,7 +217,7 @@ public abstract class ChunkHider {
         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++){
+        for (int i = 0; i < BLOCKS_PER_SECTION; i++) {
             resolvedData[i] = data.get(i);
         }
 
@@ -236,7 +228,7 @@ public abstract class ChunkHider {
         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++) {
+        for (int i = 0; i < blockDataArray.length; i++) {
             int blockId = blockDataArray[i];
 
             reEncodedData.set(i, blockId);
@@ -245,10 +237,6 @@ public abstract class ChunkHider {
         return reEncodedData.getRaw();
     }
 
-    public abstract boolean isPlayerPrivilegedToAccessPosition(Player p, int blockX, int blockY, int blockZ);
-    public abstract boolean isPlayerPrivilegedToAccessBlock(Player p, int blockX, int blockY, int blockZ, Block block);
-    public abstract boolean isPlayerPrivilegedToAccessBlockEntity(Player p, int blockX, int blockY, int blockZ, BlockEntityType<?> type);
-
     private ClientboundLevelChunkWithLightPacket buildNewChunkPacket(ClientboundLevelChunkWithLightPacket originalPacket, byte[] newBlockDataBuffer, List<Object> newBlockEntities) {
         ClientboundLevelChunkWithLightPacket clonedPacket = (ClientboundLevelChunkWithLightPacket) chunkPacketShallowCloner.apply(originalPacket);
         ClientboundLevelChunkPacketData clonedPacketChunkData = (ClientboundLevelChunkPacketData) chunkDataShallowCloner.apply(originalPacket.getChunkData());
@@ -258,7 +246,7 @@ public abstract class ChunkHider {
 
         levelChunkPacketDataField.set(clonedPacket, clonedPacketChunkData);
 
-        return  clonedPacket;
+        return clonedPacket;
     }
 
 
@@ -267,48 +255,52 @@ public abstract class ChunkHider {
     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) {
+
+    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 y = yField.get(blockEntityInfo);
-                    int x = SectionPos.sectionRelativeX((short) packedXZ);
-                    int z = SectionPos.sectionRelativeZ((short) packedXZ);
+                    int localX = (packedXZ >> 4) & fourBitBitmask;
+                    int localZ = packedXZ & fourBitBitmask;
 
-                    return isPlayerPrivilegedToAccessPosition(player, x, y, z) && isPlayerPrivilegedToAccessBlockEntity(player, x, y, z, type);
+                    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){
+    private void copyOverSectionBiomeData(ByteBuf oldData, ByteBuf newData) {
         short bitsPerBiome = oldData.readByte();
         newData.writeByte(bitsPerBiome);
-        if(bitsPerBiome == 0) {
+        if (bitsPerBiome == 0) {
             int sectionBiomeId = ProtocolUtils.readVarInt(oldData);
             ProtocolUtils.writeVarInt(newData, sectionBiomeId);
-        }
-        else if(bitsPerBiome <= BIT_PER_BIOME_INDIRECTION_LIMIT) {
+        } else if (bitsPerBiome <= BIT_PER_BIOME_INDIRECTION_LIMIT) {
             int palletLength = ProtocolUtils.readVarInt(oldData);
             ProtocolUtils.writeVarInt(newData, palletLength);
 
-            for(int i = 0; i < palletLength; i++) {
+            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 ) {
+            long[] rawData = readSectionDataFromBuffer(oldData, bitsPerBiome, BIOMES_PER_SECTION);
+            for (long rawDataSegment : rawData) {
+                newData.writeLong(rawDataSegment);
+            }
+        } else {
+            long[] rawData = readSectionDataFromBuffer(oldData, bitsPerBiome, BIOMES_PER_SECTION);
+            for (long rawDataSegment : rawData) {
                 newData.writeLong(rawDataSegment);
             }
         }
-        else {
-            long[] rawData = readSectionDataFromBuffer(oldData, bitsPerBiome,  BIOMES_PER_SECTION);
-            for(long rawDataSegment : rawData ) {
-                newData.writeLong(rawDataSegment);
-            }
-        }
-
     }
 }

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

@@ -143,7 +143,7 @@ public class ProtocolUtils {
     public static int[] readVarIntArray(ByteBuf buffer, int length) {
         int[] array = new int[length];
 
-        for(int i = 0; i < length; i++) {
+        for (int i = 0; i < length; i++) {
             array[i] = readVarInt(buffer);
         }
 
@@ -162,8 +162,8 @@ public class ProtocolUtils {
         } while (value != 0);
     }
 
-    public static void writeVarIntArray(ByteBuf buf, int[] values){
-        for(int varInt : values) {
+    public static void writeVarIntArray(ByteBuf buf, int[] values) {
+        for (int varInt : values) {
             writeVarInt(buf, varInt);
         }
     }

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

@@ -1,3 +1,22 @@
+/*
+ *   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 com.comphenix.tinyprotocol.TinyProtocol;
@@ -6,11 +25,6 @@ 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.network.protocol.game.*;
-import net.minecraft.resources.ResourceLocation;
-import net.minecraft.world.level.block.entity.BlockEntityType;
-import net.minecraft.world.phys.Vec3;
-import org.bukkit.entity.Player;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.SectionPos;
 import net.minecraft.network.PacketListener;
@@ -23,13 +37,11 @@ import net.minecraft.network.protocol.configuration.ClientboundUpdateEnabledFeat
 import net.minecraft.network.protocol.cookie.ClientboundCookieRequestPacket;
 import net.minecraft.network.protocol.game.*;
 import net.minecraft.network.protocol.login.*;
-import net.minecraft.network.protocol.login.ClientboundCustomQueryPacket;
-import net.minecraft.network.protocol.login.ClientboundHelloPacket;
-import net.minecraft.network.protocol.login.ClientboundLoginCompressionPacket;
-import net.minecraft.network.protocol.login.ClientboundLoginDisconnectPacket;
-import net.minecraft.network.protocol.login.ClientboundLoginFinishedPacket;
 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.phys.Vec3;
+import org.bukkit.entity.Player;
 
 import java.util.*;
 import java.util.function.BiFunction;
@@ -41,35 +53,21 @@ import java.util.function.ToIntFunction;
  * any packet must be explicitly whitelisted or processed in a
  * way that is also compliant with the principle of default-deny.
  */
-public abstract class TechHider {
+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;
 
-    private final Block blockUsedForObfuscation;
     private final BlockState blockStateUsedForObfuscation;
-    private ChunkHider chunkHider;
+    private final ChunkHider chunkHider;
+
+    private final AccessPrivilegeProvider privilegeProvider;
 
     // TODO handle packet bundle
-    public TechHider(Block blockUsedForObfuscation) {
-        this.blockUsedForObfuscation = blockUsedForObfuscation;
+    public TechHider(Block blockUsedForObfuscation, AccessPrivilegeProvider privilegeProvider) {
         this.blockStateUsedForObfuscation = blockUsedForObfuscation.defaultBlockState();
 
-        this.chunkHider = new ChunkHider(blockUsedForObfuscation) {
-            @Override
-            public boolean isPlayerPrivilegedToAccessBlock(Player p, int blockX, int blockY, int blockZ, Block block) {
-                return TechHider.this.isPlayerPrivilegedToAccessBlock(p, blockX, blockY, blockZ, block);
-            }
-
-            @Override
-            public boolean isPlayerPrivilegedToAccessBlockEntity(Player p, int blockX, int blockY, int blockZ, BlockEntityType<?> type) {
-                return TechHider.this.isPlayerPrivilegedToAccessBlocEntity(p, blockX, blockY, blockZ, type);
-            }
-
-            @Override
-            public boolean isPlayerPrivilegedToAccessPosition(Player p, int blockX, int blockY, int blockZ) {
-                return TechHider.this.isPlayerPrivilegedToAccessPosition(p, blockX, blockY, blockZ);
-            }
-        };
+        this.chunkHider = new ChunkHider(blockUsedForObfuscation, privilegeProvider);
+        this.privilegeProvider = privilegeProvider;
 
         this.bypassingPackets = new HashSet<>(List.of(
                 // --- 5.1.x Login Protocol ---
@@ -81,8 +79,7 @@ public abstract class TechHider {
                 ClientboundCookieRequestPacket.class, // 5.1.6 Cookie Request
 
                 // --- 6.1.x Configuration Protocol ---
-                ClientboundSelectKnownPacks.class,
-                ClientboundCustomPayloadPacket.class, // 6.1.2 Clientbound Plugin Message
+                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
@@ -95,7 +92,7 @@ public abstract class TechHider {
                 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
+                // Payloads
                 ClientboundServerDataPacket.class, // 6.1.20 Code of Conduct is usually in Server Data
 
                 // --- 7.1.x Play Protocol ---
@@ -190,6 +187,8 @@ public abstract class TechHider {
                 ClientboundMoveVehiclePacket.class, // 7.1.56 Move Vehicle (vehicle the player is in)
                 ClientboundStopSoundPacket.class, // 7.1.118 Stop Sound: sound state side channel
 
+                ClientboundLightUpdatePacket.class, // 7.1.48 Update Light
+
                 ClientboundContainerSetContentPacket.class, // 7.1.19 Set Container Content
                 ClientboundContainerSetDataPacket.class, // 7.1.20 Set Container Property
                 ClientboundContainerSetSlotPacket.class // 7.1.21 Set Container Slot
@@ -232,7 +231,7 @@ public abstract class TechHider {
         // 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));
+        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.
@@ -274,10 +273,6 @@ public abstract class TechHider {
         // 7.1.47 Particle: particle type and position can reveal hidden machinery.
         processors.put(ClientboundLevelParticlesPacket.class, (p, packet) -> processLevelParticlesPacket(p, (ClientboundLevelParticlesPacket) packet));
 
-        // --- Lighting packets ---
-        // 7.1.48 Update Light: lighting can reveal hidden blocks/operations.
-        processors.put(ClientboundLightUpdatePacket.class, tossPacket);
-
         // --- Sound packets ---
         // 7.1.115 Entity Sound Effect: entity id and sound.
         processors.put(ClientboundSoundEntityPacket.class, this.buildEntityPacketProcessor(ClientboundSoundEntityPacket::getId));
@@ -304,48 +299,50 @@ public abstract class TechHider {
             int blockZ = (int) pos.z;
 
 
-            return  proccessPositionBasedPacket(p, blockX, blockY, blockZ, packet);
+            return proccessPositionBasedPacket(p, blockX, blockY, blockZ, packet);
         });
 
         this.packetProcessors = processors;
 
         TinyProtocol.instance.addGlobalClientboundFilter((player, rawPacket) -> {
-            if(rawPacket instanceof ClientboundBundlePacket bundlePacket) {
-                List<Packet<? super ClientGamePacketListener>> processedPackets = new ArrayList<>();
+            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);
+                    for (Packet<? super ClientGamePacketListener> packet : bundlePacket.subPackets()) {
+                        Packet<? super ClientGamePacketListener> processedPacket = (Packet<? super ClientGamePacketListener>) processPacket(player, packet);
 
-                    if(processedPacket != null) {
-                        processedPackets.add(processedPacket);
+                        if (processedPacket != null) {
+                            processedPackets.add(processedPacket);
+                        }
                     }
-                }
 
-                return new ClientboundBundlePacket(processedPackets);
-            }
-            else if(rawPacket instanceof Packet) {
-                return processPacket(player, (Packet<?>) rawPacket);
-            }
-            else {
+                    return new ClientboundBundlePacket(processedPackets);
+                } else {
+                    return processPacket(player, rawPacket);
+                }
+            } 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())) {
+        if (bypassingPackets.contains(packet.getClass())) {
             return packet;
-        }
-        else if(packetProcessors.containsKey(packet.getClass())) {
-            return packetProcessors.get(packet.getClass()).apply(player, (Packet<? extends PacketListener>) packet);
-        }
-        else {
+        } else if (packetProcessors.containsKey(packet.getClass())) {
+            return packetProcessors.get(packet.getClass()).apply(player, packet);
+        } else {
             return null;
         }
     }
 
     private Packet<? extends PacketListener> processAddEntityPacket(Player player, ClientboundAddEntityPacket packet) {
-        if(isPlayerPrivilegedToAccessEntity(player, packet.getId()) && isPlayerPrivilegedToAccessPosition(player, (int) packet.getX(), (int) packet.getY(), (int) packet.getZ())) {
+        if (privilegeProvider.isPlayerPrivilegedToAccessEntity(player, packet.getId()) && privilegeProvider.isPlayerPrivilegedToAccessPosition(player, (int) packet.getX(), (int) packet.getY(), (int) packet.getZ())) {
             return packet;
         } else {
             return null;
@@ -353,13 +350,14 @@ public abstract class TechHider {
     }
 
     private Packet<? extends PacketListener> processEntityPacket(Player player, int entityId, Packet<? extends PacketListener> packet) {
-        if(isPlayerPrivilegedToAccessEntity(player, entityId)) {
+        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) {
+
+    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);
@@ -367,25 +365,25 @@ public abstract class TechHider {
     }
 
     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(isPlayerPrivilegedToAccessEntity(player, entityId)) {
+        if (privilegeProvider.isPlayerPrivilegedToAccessEntity(player, entityId)) {
             return packet;
-        }
-        else {
+        } else {
             return null;
         }
     }
 
-    private  final Reflection.Field<Integer> rotateHeadPacketEntityIdField = Reflection.getField(ClientboundRotateHeadPacket.class, int.class, 0);
+    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(isPlayerPrivilegedToAccessEntity(player, entityId)) {
+        if (privilegeProvider.isPlayerPrivilegedToAccessEntity(player, entityId)) {
             return packet;
-        }
-        else {
+        } else {
             return null;
         }
     }
@@ -393,9 +391,7 @@ public abstract class TechHider {
     private Packet<?> processRemoveEntitiesPacket(Player player, ClientboundRemoveEntitiesPacket packet) {
         IntList entityIdsToRemove = packet.getEntityIds();
 
-        IntList filteredEntitiesToRemove = entityIdsToRemove.intStream()
-                .filter((id) -> isPlayerPrivilegedToAccessEntity(player, id))
-                .collect(IntArrayList::new, IntList::add, IntList::addAll);
+        IntList filteredEntitiesToRemove = entityIdsToRemove.intStream().filter((id) -> privilegeProvider.isPlayerPrivilegedToAccessEntity(player, id)).collect(IntArrayList::new, IntList::add, IntList::addAll);
 
         return new ClientboundRemoveEntitiesPacket(filteredEntitiesToRemove);
     }
@@ -404,10 +400,9 @@ public abstract class TechHider {
         int fromEntityId = packet.getSourceId();
         int toEntityId = packet.getDestId();
 
-        if(isPlayerPrivilegedToAccessEntity(player, fromEntityId) && isPlayerPrivilegedToAccessEntity(player, toEntityId)) {
+        if (privilegeProvider.isPlayerPrivilegedToAccessEntity(player, fromEntityId) && privilegeProvider.isPlayerPrivilegedToAccessEntity(player, toEntityId)) {
             return packet;
-        }
-        else {
+        } else {
             return null;
         }
     }
@@ -419,7 +414,7 @@ public abstract class TechHider {
         int blockY = blockPos.getY();
         int blockZ = blockPos.getZ();
 
-        if (isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ) && isPlayerPrivilegedToAccessBlock(player, blockX, blockY, blockZ, block)) {
+        if (privilegeProvider.isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ) && privilegeProvider.isPlayerPrivilegedToAccessBlock(player, blockX, blockY, blockZ, block)) {
             return packet;
         } else {
             return null;
@@ -428,14 +423,15 @@ public abstract class TechHider {
 
     private Packet<?> processBlockUpdatePacket(Player player, ClientboundBlockUpdatePacket packet) {
         BlockPos blockPos = packet.getPos();
-        Block block = packet.getBlockState().getBlock();
+        BlockState blockState = packet.getBlockState();
+        Block block = blockState.getBlock();
         int blockX = blockPos.getX();
         int blockY = blockPos.getY();
         int blockZ = blockPos.getZ();
 
-        if (isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ) && isPlayerPrivilegedToAccessBlock(player, blockX, blockY, blockZ, block)) {
+        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(isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ)) {
+        } else if (privilegeProvider.isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ)) {
             return new ClientboundBlockUpdatePacket(blockPos, blockStateUsedForObfuscation);
         } else {
             return null;
@@ -449,7 +445,7 @@ public abstract class TechHider {
         int blockY = blockPos.getY();
         int blockZ = blockPos.getZ();
 
-        if (isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ) && isPlayerPrivilegedToAccessBlocEntity(player, blockX, blockY, blockZ, blockEntityType)) {
+        if (privilegeProvider.isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ) && privilegeProvider.isPlayerPrivilegedToAccessBlockEntity(player, blockX, blockY, blockZ, blockEntityType)) {
             return packet;
         } else {
             return null;
@@ -460,10 +456,9 @@ public abstract class TechHider {
         BlockPos blockPos = packet.getPos();
         int entityBreakingBlockId = packet.getId();
 
-        if(isPlayerPrivilegedToAccessEntity(player, entityBreakingBlockId) && isPlayerPrivilegedToAccessPosition(player, blockPos.getX(), blockPos.getY(), blockPos.getZ())) {
+        if (privilegeProvider.isPlayerPrivilegedToAccessEntity(player, entityBreakingBlockId) && privilegeProvider.isPlayerPrivilegedToAccessPosition(player, blockPos.getX(), blockPos.getY(), blockPos.getZ())) {
             return packet;
-        }
-        else {
+        } else {
             return null;
         }
     }
@@ -471,12 +466,12 @@ public abstract class TechHider {
     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);
 
-        boolean modified = false;
         List<Short> filteredPos = new ArrayList<>(oldPos.length);
         List<BlockState> filteredStates = new ArrayList<>(oldStates.length);
 
@@ -489,12 +484,10 @@ public abstract class TechHider {
             int worldY = sectionPos.relativeToBlockY(posShort);
             int worldZ = sectionPos.relativeToBlockZ(posShort);
 
-            if (isPlayerPrivilegedToAccessPosition(p, worldX, worldY, worldZ) && isPlayerPrivilegedToAccessBlock(p, worldX, worldY, worldZ, block)) {
-                // TODO statefull !!!
+            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(isPlayerPrivilegedToAccessPosition(p, worldX, worldY, worldZ)){
-                modified = true;
+            } else if (privilegeProvider.isPlayerPrivilegedToAccessPosition(p, worldX, worldY, worldZ)) {
                 filteredPos.add(posShort);
                 filteredStates.add(blockStateUsedForObfuscation);
             }
@@ -503,9 +496,6 @@ public abstract class TechHider {
         if (filteredStates.isEmpty()) {
             return null;
         }
-        if (!modified) {
-            return packet;
-        }
 
         short[] newPos = new short[filteredPos.size()];
         for (int i = 0; i < newPos.length; i++) {
@@ -514,11 +504,7 @@ public abstract class TechHider {
 
         BlockState[] newStates = filteredStates.toArray(new BlockState[0]);
 
-        return new ClientboundSectionBlocksUpdatePacket(
-                sectionPos,
-                ShortSets.unmodifiable(new ShortArraySet(newPos)),
-                newStates
-        );
+        return new ClientboundSectionBlocksUpdatePacket(sectionPos, ShortSets.unmodifiable(new ShortArraySet(newPos)), newStates);
     }
 
     private Packet<?> processLevelParticlesPacket(Player player, ClientboundLevelParticlesPacket packet) {
@@ -526,30 +512,29 @@ public abstract class TechHider {
         int blockY = (int) packet.getY();
         int blockZ = (int) packet.getZ();
 
-        if(isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ)) {
-            return packet;
-        }
-        else {
-            return null;
-        }
-    }
-
-    private ClientboundLevelChunkWithLightPacket processChunkWithLight(Player p, ClientboundLevelChunkWithLightPacket packet) {
-        if(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(isPlayerPrivilegedToAccessPosition(player, blockX, blockY, blockZ)) {
+        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;
@@ -561,10 +546,4 @@ public abstract class TechHider {
             return proccessPositionBasedPacket(p, blockX, blockY, blockZ, packet);
         };
     }
-
-    public abstract boolean isPlayerPrivilegedToAccessPosition(Player p, int blockX, int blockY, int blockZ);
-    public abstract boolean isPlayerPrivilegedToAccessBlock(Player p, int blockX, int blockY, int blockZ, Block block);
-    public abstract boolean isPlayerPrivilegedToAccessEntity(Player p, int entityId);
-    public abstract boolean isPlayerPrivilegedToAccessBlocEntity(Player p, int blockX, int blockY, int blockZ, BlockEntityType<?> type);
-    public abstract boolean isEveryonePrivilegedToAccessAllDataWithinChunk(int chunkX, int chunkZ);
 }

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

@@ -0,0 +1,92 @@
+/*
+ *   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 net.minecraft.core.SectionPos;
+import net.minecraft.world.level.block.entity.BlockEntityType;
+import net.minecraft.world.level.block.entity.SignBlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
+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();
+
+    private static final Reflection.Field<SectionPos> multiBlockChangeChunk = Reflection.getField(TechHider.multiBlockChangePacket, SectionPos.class, 0);
+    private static final Reflection.Field<short[]> multiBlockChangePos = Reflection.getField(TechHider.multiBlockChangePacket, short[].class, 0);
+    private static final Reflection.Field<BlockState[]> multiBlockChangeBlocks = Reflection.getField(TechHider.multiBlockChangePacket, BlockState[].class, 0);
+
+    public BiFunction<Player, Object, Object> multiBlockChangeGenerator(TechHider techHider) {
+        return (p, packet) -> {
+            TechHider.LocationEvaluator locationEvaluator = techHider.getLocationEvaluator();
+            Object chunkCoords = multiBlockChangeChunk.get(packet);
+            int chunkX = TechHider.blockPositionX.get(chunkCoords);
+            int chunkY = TechHider.blockPositionY.get(chunkCoords);
+            int chunkZ = TechHider.blockPositionZ.get(chunkCoords);
+            if (locationEvaluator.skipChunkSection(p, chunkX, chunkY, chunkZ)) {
+                return packet;
+            }
+
+            packet = TechHider.multiBlockChangeCloner.apply(packet);
+            final short[] oldPos = multiBlockChangePos.get(packet);
+            final BlockState[] oldBlocks = multiBlockChangeBlocks.get(packet);
+            ArrayList<Short> poss = new ArrayList<>(oldPos.length);
+            ArrayList<BlockState> blocks = new ArrayList<>(oldPos.length);
+            for (int i = 0; i < oldPos.length; i++) {
+                short pos = oldPos[i];
+                BlockState block = oldBlocks[i];
+                switch (locationEvaluator.check(p, 16 * chunkX + (pos >> 8 & 0xF), 16 * chunkY + (pos & 0xF), 16 * chunkZ + (pos >> 4 & 0xF))) {
+                    case SKIP:
+                        poss.add(pos);
+                        blocks.add(block);
+                        break;
+                    case CHECK:
+                        poss.add(pos);
+                        blocks.add(techHider.iBlockDataHidden(block) ? (BlockState) techHider.getObfuscationTarget() : block);
+                        break;
+                    default:
+                        break;
+                }
+            }
+
+            if (blocks.isEmpty()) return null;
+
+            short[] newPos = new short[poss.size()];
+            for (int i = 0; i < newPos.length; i++) {
+                newPos[i] = poss.get(i);
+            }
+
+            multiBlockChangePos.set(packet, newPos);
+            multiBlockChangeBlocks.set(packet, blocks.toArray(new BlockState[0]));
+            return packet;
+        };
+    }
+
+    private static final Reflection.Field<BlockEntityType> tileEntityType = Reflection.getField(TechHider.tileEntityDataPacket, BlockEntityType.class, 0);
+    private static final BlockEntityType<?> signType = Reflection.getField(BlockEntityType.class, BlockEntityType.class, 0, SignBlockEntity.class).get(null);
+
+    public boolean unfilteredTileEntityDataAction(Object packet) {
+        return tileEntityType.get(packet) != signType;
+    }
+}

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/Persistent/src/de/steamwar/persistent/Bauserver.java

@@ -29,6 +29,7 @@ import java.util.function.Consumer;
 @Getter
 public class Bauserver extends Subserver {
     private static final Map<UUID, Bauserver> servers = new HashMap<>();
+    private static final Map<UUID, Bauserver> serversByWorld = new HashMap<>();
 
     public static Bauserver get(UUID owner) {
         synchronized (servers) {
@@ -36,25 +37,43 @@ public class Bauserver extends Subserver {
         }
     }
 
+    public static Bauserver getByWorld(UUID world) {
+        synchronized (serversByWorld) {
+            return serversByWorld.get(world);
+        }
+    }
+
     private final UUID owner;
+    private final UUID world;
 
     public Bauserver(String serverName, UUID owner, int port, ProcessBuilder processBuilder, Runnable shutdownCallback) {
-        this(serverName, owner, port, processBuilder, shutdownCallback, null);
+        this(serverName, owner, owner, port, processBuilder, shutdownCallback, null);
     }
 
     public Bauserver(String serverName, UUID owner, int port, ProcessBuilder processBuilder, Runnable shutdownCallback, Consumer<Exception> failureCallback) {
+        this(serverName, owner, owner, port, processBuilder, shutdownCallback, failureCallback);
+    }
+
+    public Bauserver(String serverName, UUID owner, UUID world, int port, ProcessBuilder processBuilder, Runnable shutdownCallback, Consumer<Exception> failureCallback) {
         super(serverName, port, processBuilder, shutdownCallback, failureCallback);
         this.owner = owner;
+        this.world = world;
 
         synchronized (servers) {
-            servers.put(owner, this);
+            servers.putIfAbsent(owner, this);
+        }
+        synchronized (serversByWorld) {
+            serversByWorld.put(world, this);
         }
     }
 
     @Override
     protected void unregister() {
         synchronized (servers) {
-            servers.remove(owner);
+            servers.remove(owner, this);
+        }
+        synchronized (serversByWorld) {
+            serversByWorld.remove(world);
         }
         super.unregister();
     }

VelocityCore/deployarena.py

@@ -37,8 +37,8 @@ if __name__ == "__main__":
     with open(configfile, 'r') as file:
         gamemode = yaml.load(file)
 
-    builderworld = path.expanduser(f'/worlds/builder{version}/{worldname}')
-    arenaworld = f'/servers/{gamemode["Server"]["Folder"]}/arenas/{worldname}'
+    builderworld = sys.argv[4] if len(sys.argv) > 4 else path.expanduser(f'/worlds/builder{version}/{worldname}')
+    arenaworld = sys.argv[5] if len(sys.argv) > 5 else f'/servers/{gamemode["Server"]["Folder"]}/arenas/{worldname}'
 
     if path.exists(arenaworld):
         backupworld = path.expanduser(f'/mnt/storage/backup/arenas/{datetime.datetime.now()}-{worldname}-{version}.tar.xz')
@@ -91,7 +91,7 @@ if __name__ == "__main__":
     if path.exists(arenaworld):
         shutil.rmtree(arenaworld)
 
-    os.makedirs(f'{arenaworld}/backup')
+    os.makedirs(f'{arenaworld}/backup', exist_ok=True)
     shutil.copy2(f'{builderworld}/level.dat', f'{arenaworld}/backup/level.dat')
     shutil.copytree(f'{builderworld}/region', f'{arenaworld}/backup/region')
 

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

@@ -219,22 +219,22 @@ IGNORE_ALREADY = §cYou are already ignoring this player.
 IGNORE_MESSAGE = §7You are now ignoring §e{0}§8.
 
 #BauCommand
-BAU_ADDMEMBER_USAGE = §8/§7build addmember §8[§eplayer§8]
+BAU_ADDMEMBER_USAGE = §8/§7build addmember §8[§eworld/all§8] §8[§eplayer§8]
 BAU_ADDMEMBER_SELFADD = §cYou don't have to add yourself!
 BAU_ADDMEMBER_ISADDED = §cThis player is already a member of your world.
 BAU_ADDMEMBER_ADDED = §aThe player was added to your world.
 BAU_ADDMEMBER_ADDED_TARGET = §aYou have been added to the world of §e{0}§a.
-BAU_TP_USAGE = §8/§7build tp §8[§eplayer§8]
+BAU_TP_USAGE = §8/§7build tp §8[§eplayer§8] §8<§eworld§8>
 BAU_TP_NOALLOWED = §cYou are not allowed to teleport to this player's world.
 BAU_LOCKED_NOALLOWED = §cThe build server is currently locked.
 BAU_LOCK_BLOCKED = §cYour build lock has prevented §e{0} §cfrom joining.
-BAU_LOCKED_OPTIONS = §7Build server lock options§8: §cnobody§8, §eserverteam§8, §eteam_and_serverteam§8, §eteam§8, §aopen
+BAU_LOCKED_OPTIONS = §8/§7build lock §8[§eworld§8] §8[§eoption§8] §7Options§8: §cnobody§8, §eserverteam§8, §eteam_and_serverteam§8, §eteam§8, §aopen
 BAU_LOCKED_NOBODY = §7You have locked your build server for all players.
 BAU_LOCKED_SERVERTEAM = §7You have locked your build server for all players except added server team members.
 BAU_LOCKED_TEAM_AND_SERVERTEAM = §7You have locked your build server for all players except added team members and server team members.
 BAU_LOCKED_TEAM = §7You have locked your build server for all players except added team members.
 BAU_LOCKED_OPEN = §7You have opened your build server for all added players.
-BAU_DELMEMBER_USAGE = §8/§7build delmember §8[§eplayer§8]
+BAU_DELMEMBER_USAGE = §8/§7build delmember §8[§eworld/all§8] §8[§eplayer§8]
 BAU_DELMEMBER_SELFDEL = §cYou cannot remove yourself!
 BAU_DELMEMBER_DELETED = §cPlayer was removed.
 BAU_DELMEMBER_DELETED_TARGET = §cYou were removed from the world of §e{0}.
@@ -244,9 +244,23 @@ BAU_DELETE_DELETED = §aYour world is being reset.
 BAU_DELETE_GUI_NAME = §eDo you really want to delete the world?
 BAU_DELETE_GUI_CANCEL = §cCancel
 BAU_DELETE_GUI_DELETE = §aDelete
+BAU_WORLD_GUI_TITLE = §eYour worlds
+BAU_WORLD_CREATE_USAGE = §8/§7build world create §8[§ename§8] §8[§eversion§8] §8[§etemplate§8]
+BAU_WORLD_START_USAGE = §8/§7build world start §8[§eworld§8]
+BAU_WORLD_RENAME_USAGE = §8/§7build world rename §8[§eworld§8] §8[§enew name§8]
+BAU_WORLD_DELETE_USAGE = §8/§7build world delete §8[§eworld§8]
+BAU_WORLD_UPGRADE_USAGE = §8/§7build world upgrade §8[§eworld§8] §8[§eversion§8]
+BAU_WORLD_VERSION = §cUnknown version.
+BAU_WORLD_UNKNOWN = §cUnknown world.
+BAU_WORLD_EXISTS = §cA world with this name already exists for this version.
+BAU_WORLD_LIMIT = §cYou have reached your build world limit of §e{0}§c. Delete one first.
+BAU_WORLD_OVER_LIMIT_DELETE = §cYou currently have more than your allowed §e{0}§c build worlds. Delete one before creating, renaming, or upgrading worlds.
+BAU_WORLD_CREATED = §aWorld created.
+BAU_WORLD_RENAMED = §aWorld renamed.
+BAU_WORLD_UPGRADED = §aWorld version updated.
 BAU_START_ALREADY = §cThis server is already starting.
 BAU_MEMBER_NOMEMBER = §cThis player is no member of your world!
-BAU_MEMBER_SET_USAGE = §8/§7build {0} §8[§eplayer§8]
+BAU_MEMBER_SET_USAGE = §8/§7build {0} §8[§eworld/all§8] §8[§eplayer§8]
 BAU_MEMBER_SET_TARGET = §7You are now a §e{1}§7 on the world of §e{0}§7.
 BAU_MEMBER_SET = §7The player is now a §e{0}§7.
 BAU_MEMBER_SET_SPECTATOR = spectator
@@ -524,6 +538,20 @@ TEAM_EVENT_LEFT = §7Your team no longer takes part in this event
 TEAM_EVENT_JOINED = §7Your team now takes part in the event §e{0}§7!
 TEAM_EVENT_HOW_TO_LEAVE = §7To cancel the participation repeat the command.
 
+#Team Worlds
+TEAM_WORLD_GUI_TITLE = §eTeam worlds
+TEAM_WORLD_CREATE_USAGE = §8/§7team world create §8[§ename§8] §8[§eversion§8] §8[§etemplate§8]
+TEAM_WORLD_RENAME_USAGE = §8/§7team world rename §8[§eworld§8] §8[§enew name§8]
+TEAM_WORLD_UPGRADE_USAGE = §8/§7team world upgrade §8[§eworld§8] §8[§eversion§8]
+TEAM_WORLD_DELETE_USAGE = §8/§7team world delete §8[§eworld§8]
+TEAM_WORLD_EXISTS = §cA team world with this name already exists for this version.
+TEAM_WORLD_LIMIT = §cYour team already has the maximum of §e{0}§c worlds. Delete one first.
+TEAM_WORLD_OVER_LIMIT_DELETE = §cYour team currently has more than the allowed §e{0}§c worlds. Delete one before creating, renaming, or upgrading worlds.
+TEAM_WORLD_CREATED = §aTeam world created.
+TEAM_WORLD_RENAMED = §aTeam world renamed.
+TEAM_WORLD_UPGRADED = §aTeam world version updated.
+TEAM_WORLD_DELETED = §aTeam world deleted.
+
 #Team Color
 TEAM_COLOR_TITLE = Choose color
 
@@ -682,7 +710,7 @@ LOCK_LOCALE_CHANGED = §aLanguage saved
 
 #Builder Cloud
 BUILDERCLOUD_USAGE = §8/§7buildercloud §8[§eversion§8] §8[§emap§8]
-BUILDERCLOUD_CREATE_USAGE = §8/§7buildercloud create §8[§eversion§8] §8[§emap§8] §8<§7generator§8>
+BUILDERCLOUD_CREATE_USAGE = §8/§7buildercloud create §8[§eversion§8] §8[§emap§8] §8[§etemplate§8]
 BUILDERCLOUD_RENAME_USAGE = §8/§7buildercloud rename §8[§eversion§8] §8[§emap§8] §8[§enew name§8]
 BUILDERCLOUD_DEPLOY_USAGE = §8/§7deployarena §8[§egamemode§8] §8[§eversion§8] §8[§emap§8]
 BUILDERCLOUD_DEPLOY_FINISHED = §7Map deployment finished.

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

@@ -201,22 +201,22 @@ IGNORE_ALREADY = §cDu ignorierst diesen Spieler bereits.
 IGNORE_MESSAGE = §7Du ignorierst nun §e{0}§8.
 
 #BauCommand
-BAU_ADDMEMBER_USAGE = §8/§7bau addmember §8[§eSpieler§8]
+BAU_ADDMEMBER_USAGE = §8/§7bau addmember §8[§eWelt/all§8] §8[§eSpieler§8]
 BAU_ADDMEMBER_SELFADD = §cDu brauchst dich nicht selbst hinzufügen!
 BAU_ADDMEMBER_ISADDED = §cDieser Spieler ist bereits Mitglied auf deiner Welt.
 BAU_ADDMEMBER_ADDED = §aDer Spieler wurde zu deiner Welt hinzugefügt.
 BAU_ADDMEMBER_ADDED_TARGET = §aDu wurdest zu der Welt von §e{0} §ahinzugefügt.
-BAU_TP_USAGE = §8/§7bau tp §8[§eSpieler§8]
+BAU_TP_USAGE = §8/§7bau tp §8[§eSpieler§8] §8<§eWelt§8>
 BAU_TP_NOALLOWED = §cDu darfst dich nicht auf diese Welt teleportieren.
 BAU_LOCKED_NOALLOWED = §cDer Bauserver ist momentan gesperrt.
 BAU_LOCK_BLOCKED = §cDeine Bausperre hat den Beitritt von §e{0} §cverhindert.
-BAU_LOCKED_OPTIONS = §7Bauserver-Sperroptionen§8: §cnobody§8, §eserverteam§8, §eteam_and_serverteam§8, §eteam§8, §aopen
+BAU_LOCKED_OPTIONS = §8/§7bau lock §8[§eWelt§8] §8[§eOption§8] §7Optionen§8: §cnobody§8, §eserverteam§8, §eteam_and_serverteam§8, §eteam§8, §aopen
 BAU_LOCKED_NOBODY = §7Du hast deinen Bau für alle Spieler geschlossen.
 BAU_LOCKED_SERVERTEAM = §7Du hast deinen Bau für alle außer hinzugefügte Serverteammitglieder gesperrt.
 BAU_LOCKED_TEAM_AND_SERVERTEAM = §7Du hast deinen Bau für alle außer hinzugefügte Teammitglieder und Serverteammitglieder gesperrt.
 BAU_LOCKED_TEAM = §7Du hast deinen Bau für alle außer hinzugefügte Teammitglieder gesperrt.
 BAU_LOCKED_OPEN = §7Du hast deinen Bau für alle hinzugefügten Spieler geöffnet.
-BAU_DELMEMBER_USAGE = §8/§7bau delmember §8[§eSpieler§8]
+BAU_DELMEMBER_USAGE = §8/§7bau delmember §8[§eWelt/all§8] §8[§eSpieler§8]
 BAU_DELMEMBER_SELFDEL = §cDu kannst dich nicht selbst entfernen!
 BAU_DELMEMBER_DELETED = §cDer Spieler wurde entfernt.
 BAU_DELMEMBER_DELETED_TARGET = §cDu wurdest von der Welt von §e{0} §centfernt.
@@ -226,9 +226,23 @@ BAU_DELETE_DELETED = §aDeine Welt wird zurückgesetzt.
 BAU_DELETE_GUI_NAME = §eWirklich Welt löschen?
 BAU_DELETE_GUI_CANCEL = §cAbbrechen
 BAU_DELETE_GUI_DELETE = §aLöschen
+BAU_WORLD_GUI_TITLE = §eDeine Welten
+BAU_WORLD_CREATE_USAGE = §8/§7bau world create §8[§eName§8] §8[§eVersion§8] §8[§eTemplate§8]
+BAU_WORLD_START_USAGE = §8/§7bau world start §8[§eWelt§8]
+BAU_WORLD_RENAME_USAGE = §8/§7bau world rename §8[§eWelt§8] §8[§eNeuer Name§8]
+BAU_WORLD_DELETE_USAGE = §8/§7bau world delete §8[§eWelt§8]
+BAU_WORLD_UPGRADE_USAGE = §8/§7bau world upgrade §8[§eWelt§8] §8[§eVersion§8]
+BAU_WORLD_VERSION = §cUnbekannte Version.
+BAU_WORLD_UNKNOWN = §cUnbekannte Welt.
+BAU_WORLD_EXISTS = §cEine Welt mit diesem Namen existiert bereits in dieser Version.
+BAU_WORLD_LIMIT = §cDu hast dein Bauwelt-Limit von §e{0}§c erreicht. Lösche zuerst eine Welt.
+BAU_WORLD_OVER_LIMIT_DELETE = §cDu hast aktuell mehr als die erlaubten §e{0}§c Bauwelten. Lösche eine Welt, bevor du Welten erstellst, umbenennst oder upgradest.
+BAU_WORLD_CREATED = §aWelt erstellt.
+BAU_WORLD_RENAMED = §aWelt umbenannt.
+BAU_WORLD_UPGRADED = §aWelt-Version aktualisiert.
 BAU_START_ALREADY = §cDer Server startet bereits.
 BAU_MEMBER_NOMEMBER = §cDer Spieler ist kein Mitglied deiner Welt!
-BAU_MEMBER_SET_USAGE = §8/§7bau {0} §8[§eSpieler§8]
+BAU_MEMBER_SET_USAGE = §8/§7bau {0} §8[§eWelt/all§8] §8[§eSpieler§8]
 BAU_MEMBER_SET_TARGET = §7Du bist nun ein §e{1}§7 auf der Welt von §e{0}§7.
 BAU_MEMBER_SET = §7Der Spieler ist nun §e{0}§7.
 BAU_MEMBER_SET_SPECTATOR = Zuschauer
@@ -491,6 +505,20 @@ TEAM_EVENT_LEFT = §7Dein Team nimmt nicht mehr am Event teil
 TEAM_EVENT_JOINED = §7Dein Team nimmt nun am Event §e{0} §7 teil!
 TEAM_EVENT_HOW_TO_LEAVE = §7Um die Teilnahme abzusagen, wiederhole den Befehl.
 
+#Team Worlds
+TEAM_WORLD_GUI_TITLE = §eTeamwelten
+TEAM_WORLD_CREATE_USAGE = §8/§7team world create §8[§eName§8] §8[§eVersion§8] §8[§eTemplate§8]
+TEAM_WORLD_RENAME_USAGE = §8/§7team world rename §8[§eWelt§8] §8[§eNeuer Name§8]
+TEAM_WORLD_UPGRADE_USAGE = §8/§7team world upgrade §8[§eWelt§8] §8[§eVersion§8]
+TEAM_WORLD_DELETE_USAGE = §8/§7team world delete §8[§eWelt§8]
+TEAM_WORLD_EXISTS = §cEine Teamwelt mit diesem Namen existiert bereits in dieser Version.
+TEAM_WORLD_LIMIT = §cDein Team hat bereits das Maximum von §e{0}§c Welten. Lösche zuerst eine Welt.
+TEAM_WORLD_OVER_LIMIT_DELETE = §cDein Team hat aktuell mehr als die erlaubten §e{0}§c Welten. Lösche eine Welt, bevor du Welten erstellst, umbenennst oder upgradest.
+TEAM_WORLD_CREATED = §aTeamwelt erstellt.
+TEAM_WORLD_RENAMED = §aTeamwelt umbenannt.
+TEAM_WORLD_UPGRADED = §aTeamwelt-Version aktualisiert.
+TEAM_WORLD_DELETED = §aTeamwelt gelöscht.
+
 #Team Color
 TEAM_COLOR_TITLE = Farbe wählen
 
@@ -644,7 +672,7 @@ LOCK_LOCALE_CHANGED = §aSprache gespeichert
 
 #Builder Cloud
 BUILDERCLOUD_USAGE = §8/§7buildercloud §8[§eVersion§8] §8[§eWelt§8]
-BUILDERCLOUD_CREATE_USAGE = §8/§7buildercloud create §8[§eVersion§8] §8[§eWelt§8] §8<§7Generator§8>
+BUILDERCLOUD_CREATE_USAGE = §8/§7buildercloud create §8[§eVersion§8] §8[§eWelt§8] §8[§eTemplate§8]
 BUILDERCLOUD_RENAME_USAGE = §8/§7buildercloud rename §8[§eVersion§8] §8[§eWElt§8] §8[§eNeuer Name§8]
 BUILDERCLOUD_VERSION = §cUnbekannte Version.
 BUILDERCLOUD_EXISTING_MAP = §cWelt existiert bereits.

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

@@ -51,11 +51,9 @@ public class ServerStarter {
     private static final String EVENT_PATH = TMP_DATA + "event/";
     public static final String TEMP_WORLD_PATH = TMP_DATA + "arenaserver/";
 
-    private static final String WORLDS_FOLDER = "/worlds";
-    public static final String WORLDS_BASE_PATH = WORLDS_FOLDER + "/userworlds";
-    public static final String BUILDER_BASE_PATH = WORLDS_FOLDER + "/builder";
-
-    private static final String WORLDS_STORAGE_BASE_PATH = "/mnt/storage/worlds/userworlds";
+    public static final String WORLDS_BASE_PATH = SteamwarWorld.WORLD_STORAGE + "/";
+    public static final String LEGACY_WORLDS_BASE_PATH = "/worlds/userworlds";
+    public static final String LEGACY_BUILDER_BASE_PATH = "/worlds/builder";
 
     private File directory = null;
     private String worldDir = null;
@@ -91,7 +89,8 @@ public class ServerStarter {
         gameMode = mode.configFile.getName().replace(".yml", "");
         directory = new File(SERVER_PATH, mode.Server.Folder);
         arguments.put("config", mode.configFile.getName());
-        tempWorld(SERVER_PATH + mode.Server.Folder + "/arenas/" + map);
+        SteamwarWorld arenaWorld = SteamwarWorld.getOrCreateArenaWorld(gameMode, map, version.getVersionSuffix());
+        tempWorld(arenaWorld.setupAndGetStoragePath());
         startCondition = () -> {
             if (playersToSend.stream().anyMatch(player -> Subserver.isArena(Subserver.getSubserver(player)))) {
                 playersToSend.forEach(player -> Chatter.of(player).system("FIGHT_IN_ARENA"));
@@ -106,7 +105,7 @@ 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()));
@@ -153,30 +152,36 @@ public class ServerStarter {
     }
 
     public ServerStarter build(ServerVersion version, UUID owner) {
+        this.version = version;
+        SteamwarUser user = SteamwarUser.get(owner);
+        return build(version, SteamwarWorld.getOrCreateBauWorld(user, version.getVersionSuffix()));
+    }
+
+    public ServerStarter build(ServerVersion version, SteamwarWorld world) {
         this.version = version;
         directory = version.getServerDirectory("Bau");
-        worldDir = version.getWorldFolder(WORLDS_BASE_PATH);
-        worldName = String.valueOf(SteamwarUser.get(owner).getId());
+        SteamwarUser user = world.getOwner() == null ? null : SteamwarUser.byId(world.getOwner().getValue());
+        worldDir = WORLDS_BASE_PATH;
+        worldName = world.getUuid().toString();
         checkpoint = true;
 
-        build(owner);
+        if (world.getType() == WorldType.TEAM) {
+            build(world.getUuid());
+            Team team = Team.byId(world.getTeam().getValue());
+            serverNameProvider = port -> team.getTeamKuerzel() + "s Bau";
+            arguments.put("bauTeam", String.valueOf(world.getTeam().getValue()));
+        } else {
+            build(user.getUUID(), world.getUuid());
+            arguments.put("bauOwner", String.valueOf(user.getId()));
+        }
+        arguments.put("bauWorld", world.getUuid().toString());
+        arguments.put("bauType", world.getType().name());
 
-        worldSetup = () -> {
-            File world = new File(worldDir, worldName);
-            if (!world.exists()) {
-                File storage = new File(version.getWorldFolder(WORLDS_STORAGE_BASE_PATH), worldName);
-
-                if (storage.exists()) {
-                    node.execute("mv", storage.getPath(), world.getPath());
-                } else {
-                    copyWorld(node, new File(directory, "Bauwelt").getPath(), world.getPath());
-                }
-            }
-        };
+        worldSetup = () -> world.setupAndGetStoragePath(new File(directory, "Bauwelt"));
 
         // Send players to existing server
         startCondition = () -> {
-            Bauserver subserver = Bauserver.get(owner);
+            Bauserver subserver = Bauserver.getByWorld(world.getUuid());
             if (subserver != null) {
                 for (Player p : playersToSend) {
                     SubserverSystem.sendPlayer(subserver, p);
@@ -184,9 +189,13 @@ public class ServerStarter {
                 return false;
             }
             boolean atLeastOneSupervisor = playersToSend.stream().anyMatch(player -> {
-                if (player.getUniqueId().equals(owner)) return true;
-                BauweltMember bauweltMember = BauweltMember.getBauMember(owner, player.getUniqueId());
-                return bauweltMember.isSupervisor();
+                SteamwarUser playerUser = SteamwarUser.get(player.getUniqueId());
+                if (world.getType() == WorldType.TEAM) {
+                    return playerUser.getTeam() == world.getTeam().getValue();
+                }
+                if (user != null && playerUser.getId() == user.getId()) return true;
+                BauweltMember bauweltMember = BauweltMember.getBauMember(world.getUuid(), playerUser.getId());
+                return bauweltMember != null && bauweltMember.isSupervisor();
             });
             if (!atLeastOneSupervisor) {
                 for (Player p : playersToSend) {
@@ -220,15 +229,20 @@ public class ServerStarter {
     }
 
     private void build(UUID owner) {
-        constructor = (serverName, port, builder, shutdownCallback, failureCallback) -> new Bauserver(serverName, owner, port, builder, shutdownCallback, failureCallback);
+        build(owner, owner);
+    }
+
+    private void build(UUID owner, UUID world) {
+        constructor = (serverName, port, builder, shutdownCallback, failureCallback) -> new Bauserver(serverName, owner, world, port, builder, shutdownCallback, failureCallback);
         serverNameProvider = port -> bauServerName(SteamwarUser.get(owner));
     }
 
-    public ServerStarter builder(ServerVersion version, String map, File generator) {
+    public ServerStarter builder(ServerVersion version, String map, File prototype) {
         this.version = version;
         directory = version.getServerDirectory("Builder");
-        worldDir = version.getWorldFolder(BUILDER_BASE_PATH);
-        worldName = map;
+        SteamwarWorld world = SteamwarWorld.getOrCreateBuilderWorld(map, version.getVersionSuffix());
+        worldDir = WORLDS_BASE_PATH;
+        worldName = world.getUuid().toString();
         serverNameProvider = port -> "*" + map;
         checkpoint = true;
         constructor = (serverName, port, builder, shutdownCallback, failureCallback) -> new Builderserver(serverName, worldName, port, builder, shutdownCallback, failureCallback);
@@ -245,16 +259,7 @@ public class ServerStarter {
             return true;
         };
 
-        if (generator != null) {
-            worldSetup = () -> {
-                File leveldat = new File(new File(worldDir, worldName), "level.dat");
-                try {
-                    Files.copy(generator.toPath(), leveldat.toPath());
-                } catch (IOException e) {
-                    throw new SecurityException(e);
-                }
-            };
-        }
+        worldSetup = () -> world.setupAndGetStoragePath(prototype != null ? prototype : legacyBuilderWorld(version, map));
 
         return this;
     }
@@ -351,13 +356,29 @@ 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) {
         node.execute("cp", "-r", template, target);
     }
 
+    private static File legacyBauWorld(ServerVersion version, SteamwarUser user) {
+        File legacyIdWorld = new File(version.getWorldFolder(LEGACY_WORLDS_BASE_PATH), String.valueOf(user.getId()));
+        if(legacyIdWorld.exists())
+            return legacyIdWorld;
+
+        File legacyUuidWorld = new File(version.getWorldFolder(LEGACY_WORLDS_BASE_PATH), user.getUUID().toString());
+        if(legacyUuidWorld.exists())
+            return legacyUuidWorld;
+
+        return new File(version.getServerDirectory("Bau"), "Bauwelt");
+    }
+
+    public static File legacyBuilderWorld(ServerVersion version, String map) {
+        return new File(version.getWorldFolder(LEGACY_BUILDER_BASE_PATH), map);
+    }
+
     private interface ServerConstructor {
         Subserver construct(String serverName, int port, ProcessBuilder builder, Runnable shutdownCallback, Consumer<Exception> failureCallback);
     }
@@ -396,4 +417,4 @@ public class ServerStarter {
         }
     }
 
-}
+}

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

@@ -35,16 +35,19 @@ import de.steamwar.persistent.Bauserver;
 import de.steamwar.sql.BauweltMember;
 import de.steamwar.sql.GameModeConfig;
 import de.steamwar.sql.SteamwarUser;
-import de.steamwar.velocitycore.ServerStarter;
-import de.steamwar.velocitycore.ServerVersion;
-import de.steamwar.velocitycore.SubserverSystem;
-import de.steamwar.velocitycore.VelocityCore;
+import de.steamwar.sql.SteamwarWorld;
+import de.steamwar.sql.UserPerm;
+import de.steamwar.velocitycore.*;
 import de.steamwar.velocitycore.inventory.SWInventory;
 import de.steamwar.velocitycore.inventory.SWItem;
+import de.steamwar.velocitycore.inventory.SWListInv;
 import de.steamwar.velocitycore.network.NetworkSender;
 import de.steamwar.velocitycore.util.BauLock;
 
+import java.util.ArrayList;
 import java.util.Collection;
+import java.util.List;
+import java.util.Locale;
 import java.util.function.Consumer;
 
 @Linked
@@ -64,13 +67,13 @@ public class BauCommand extends SWCommand {
     }
 
     @Register
-    public void toBau(PlayerChatter sender, @OptionalValue(value = "", onlyUINIG = true) ServerVersion version) {
-        new ServerStarter().build(version, sender.user().getUUID()).send(sender.getPlayer()).start();
+    public void toBau(PlayerChatter sender, @Mapper("ownBauWorld") @OptionalValue(value = "", onlyUINIG = true) @AllowNull SteamwarWorld world) {
+        startPersonalWorld(sender, world);
     }
 
     @Register(value = "addmember", description = "BAU_ADDMEMBER_USAGE")
-    public void addmember(Chatter sender, @Validator("addMemberTarget") SteamwarUser target) {
-        BauweltMember.addMember(sender.user().getUUID(), target.getUUID());
+    public void addmember(Chatter sender, @Mapper("bauWorldSelector") String world, @Validator("addMemberTarget") SteamwarUser target) {
+        if (!forEachSelectedWorld(sender, world, bauworld -> BauweltMember.addMember(bauworld.getUuid(), target.getId()))) return;
         sender.system("BAU_ADDMEMBER_ADDED");
         Chatter.of(target.getUUID()).system("BAU_ADDMEMBER_ADDED_TARGET", sender);
     }
@@ -86,18 +89,31 @@ public class BauCommand extends SWCommand {
                 messageSender.send("BAU_ADDMEMBER_SELFADD");
                 return false;
             }
-            if (BauweltMember.getBauMember(sender.user().getId(), value.getId()) != null) {
-                messageSender.send("BAU_ADDMEMBER_ISADDED");
-                return false;
-            }
             return true;
         };
     }
 
     @Register(value = "tp", description = "BAU_TP_USAGE")
     @Register("teleport")
-    public void teleport(PlayerChatter sender, @Validator("teleportTarget") SteamwarUser worldOwner, @OptionalValue(value = "", onlyUINIG = true) ServerVersion version) {
-        new ServerStarter().build(version, worldOwner.getUUID()).send(sender.getPlayer()).start();
+    public void teleport(PlayerChatter sender, @Validator("teleportTarget") SteamwarUser worldOwner, @Mapper("targetBauWorld") @OptionalValue(value = "", onlyUINIG = true) @AllowNull SteamwarWorld world) {
+        if (world == null) {
+            world = defaultPersonalWorld(worldOwner);
+        }
+        if (world == null) {
+            sender.system("BAU_WORLD_UNKNOWN");
+            return;
+        }
+        if (sender.user().getId() != worldOwner.getId() && BauLock.isLocked(world, sender.user())) {
+            sender.system("BAU_LOCKED_NOALLOWED");
+            Chatter.of(worldOwner.getUUID()).system("BAU_LOCK_BLOCKED", sender);
+            return;
+        }
+        if (sender.user().getId() != worldOwner.getId() && BauweltMember.getBauMember(world.getUuid(), sender.user().getId()) == null) {
+            SubserverSystem.sendDeniedMessage(sender, worldOwner.getUUID());
+            sender.system("BAU_TP_NOALLOWED");
+            return;
+        }
+        new ServerStarter().build(ServerVersion.get(world.getVersion()), world).send(sender.getPlayer()).start();
     }
 
     @Validator(value = "teleportTarget", local = true)
@@ -107,17 +123,6 @@ public class BauCommand extends SWCommand {
                 messageSender.send("UNKNOWN_PLAYER");
                 return false;
             }
-            if (sender.user().getId() != owner.getId() && BauweltMember.getBauMember(owner.getId(), sender.user().getId()) == null) {
-                SubserverSystem.sendDeniedMessage(sender, owner.getUUID());
-                messageSender.send("BAU_TP_NOALLOWED");
-                return false;
-            }
-
-            if (BauLock.isLocked(owner, sender.user())) {
-                messageSender.send("BAU_LOCKED_NOALLOWED");
-                Chatter.of(owner.getUUID()).system("BAU_LOCK_BLOCKED", sender);
-                return false;
-            }
             return true;
         };
     }
@@ -128,39 +133,39 @@ public class BauCommand extends SWCommand {
     }
 
     @Register("setspectator")
-    public void setSpectator(Chatter sender, @Mapper("addedUsers") @AllowNull @OptionalValue("") SteamwarUser user) {
-        setPerms(sender, user, "setspectator", "BAU_MEMBER_SET_SPECTATOR", member -> {
+    public void setSpectator(Chatter sender, @Mapper("bauWorldSelector") String world, @Mapper("addedUsers") @AllowNull @OptionalValue("") SteamwarUser user) {
+        setPerms(sender, world, user, "setspectator", "BAU_MEMBER_SET_SPECTATOR", member -> {
             member.setBuild(false);
             member.setSupervisor(false);
         });
     }
 
     @Register("setbuilder")
-    public void setBuilder(Chatter sender, @Mapper("addedUsers") @AllowNull @OptionalValue("") SteamwarUser user) {
-        setPerms(sender, user, "setbuild", "BAU_MEMBER_SET_BUILDER", member -> {
+    public void setBuilder(Chatter sender, @Mapper("bauWorldSelector") String world, @Mapper("addedUsers") @AllowNull @OptionalValue("") SteamwarUser user) {
+        setPerms(sender, world, user, "setbuild", "BAU_MEMBER_SET_BUILDER", member -> {
             member.setBuild(true);
             member.setSupervisor(false);
         });
     }
 
     @Register("setsupervisor")
-    public void setSupervisor(Chatter sender, @Mapper("addedUsers") @AllowNull @OptionalValue("") SteamwarUser user) {
-        setPerms(sender, user, "setsupervisor", "BAU_MEMBER_SET_SUPERVISOR", member -> {
+    public void setSupervisor(Chatter sender, @Mapper("bauWorldSelector") String world, @Mapper("addedUsers") @AllowNull @OptionalValue("") SteamwarUser user) {
+        setPerms(sender, world, user, "setsupervisor", "BAU_MEMBER_SET_SUPERVISOR", member -> {
             member.setBuild(true);
             member.setSupervisor(true);
         });
     }
 
-    private void setPerms(Chatter owner, SteamwarUser user, String name, String permName, Consumer<BauweltMember> setter) {
+    private void setPerms(Chatter owner, String world, SteamwarUser user, String name, String permName, Consumer<BauweltMember> setter) {
         if (user == null) {
             owner.system("BAU_MEMBER_SET_USAGE", name);
             return;
         }
 
-        withMember(owner, user, target -> {
+        withMembers(owner, world, user, target -> {
             setter.accept(target);
 
-            Bauserver bauserver = Bauserver.get(owner.user().getUUID());
+            Bauserver bauserver = Bauserver.getByWorld(target.getWorldID());
             if (bauserver != null) {
                 bauserver.getRegisteredServer().getPlayersConnected().stream().findAny().ifPresent(player -> NetworkSender.send(player, new BaumemberUpdatePacket()));
             }
@@ -171,11 +176,11 @@ public class BauCommand extends SWCommand {
     }
 
     @Register(value = "delmember", description = "BAU_DELMEMBER_USAGE")
-    public void delmember(Chatter owner, @Mapper("addedUsers") SteamwarUser user) {
-        withMember(owner, user, target -> {
+    public void delmember(Chatter owner, @Mapper("bauWorldSelector") String world, @Mapper("addedUsers") SteamwarUser user) {
+        withMembers(owner, world, user, target -> {
             target.remove();
 
-            Bauserver bauserver = Bauserver.get(owner.user().getUUID());
+            Bauserver bauserver = Bauserver.getByWorld(target.getWorldID());
             Chatter member = Chatter.of(user.getUUID());
             member.withPlayer(player -> {
                 if (bauserver != null && bauserver.getRegisteredServer().getPlayersConnected().contains(player)) {
@@ -192,6 +197,29 @@ public class BauCommand extends SWCommand {
         });
     }
 
+    @Mapper(value = "bauWorldSelector", local = true)
+    public TypeMapper<String> bauWorldSelector() {
+        return new TypeMapper<>() {
+            @Override
+            public String map(Chatter sender, PreviousArguments previousArguments, String s) {
+                if ("all".equalsIgnoreCase(s)) return "all";
+                return SteamwarWorld.getBauWorlds(sender.user()).stream()
+                        .map(SteamwarWorld::getName)
+                        .filter(name -> name.equalsIgnoreCase(s))
+                        .findFirst()
+                        .orElse(null);
+            }
+
+            @Override
+            public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
+                List<String> worlds = new ArrayList<>();
+                worlds.add("all");
+                SteamwarWorld.getBauWorlds(sender.user()).stream().map(SteamwarWorld::getName).forEach(worlds::add);
+                return worlds;
+            }
+        };
+    }
+
     @Mapper(value = "addedUsers", local = true)
     public TypeMapper<SteamwarUser> addedUsers() {
         return new TypeMapper<SteamwarUser>() {
@@ -202,8 +230,10 @@ public class BauCommand extends SWCommand {
 
             @Override
             public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
-                return BauweltMember.getMembers(sender.user().getId()).stream()
+                return selectedWorlds(sender, previousArguments.userArgs.length == 0 ? "all" : previousArguments.userArgs[previousArguments.userArgs.length - 1]).stream()
+                        .flatMap(world -> BauweltMember.getWorldMembers(world.getUuid()).stream())
                         .map(bauweltMember -> SteamwarUser.byId(bauweltMember.getMemberID()).getUserName())
+                        .distinct()
                         .toList();
             }
         };
@@ -213,9 +243,11 @@ public class BauCommand extends SWCommand {
     public void stop(PlayerChatter sender) {
         VelocityCore.schedule(() -> {
             sender.system("BAU_STOPPING");
-            Bauserver subserver = Bauserver.get(sender.user().getUUID());
-            if (subserver != null) {
-                subserver.stop();
+            for (SteamwarWorld world : SteamwarWorld.getBauWorlds(sender.user())) {
+                Bauserver subserver = Bauserver.getByWorld(world.getUuid());
+                if (subserver != null) {
+                    subserver.stop();
+                }
             }
 
             sender.system("BAU_STOPPED");
@@ -224,25 +256,50 @@ public class BauCommand extends SWCommand {
 
     @Register("resetall")
     @Register("delete")
-    public void delete(PlayerChatter sender, ServerVersion version) {
-        SWInventory inventory = new SWInventory(sender, 9, new Message("BAU_DELETE_GUI_NAME"));
-        inventory.addItem(0, new SWItem("LIME_DYE", new Message("BAU_DELETE_GUI_DELETE")), click -> {
-            String world = version.getWorldFolder(ServerStarter.WORLDS_BASE_PATH) + sender.user().getId();
+    public void delete(PlayerChatter sender, @Mapper("ownBauWorld") SteamwarWorld world) {
+        openDeleteWorld(sender, world);
+    }
 
-            VelocityCore.schedule(() -> {
-                Bauserver subserver = Bauserver.get(sender.user().getUUID());
-                if (subserver != null) {
-                    subserver.stop();
-                }
+    @Register("worlds")
+    @Register("world")
+    public void worlds(PlayerChatter sender) {
+        openWorldList(sender);
+    }
 
-                SubserverSystem.deleteFolder(VelocityCore.local, world);
-                sender.system("BAU_DELETE_DELETED");
-            }).schedule();
+    @Register(value = "world create", description = "BAU_WORLD_CREATE_USAGE")
+    public void createWorld(PlayerChatter sender, String name, @ErrorMessage("BAU_WORLD_VERSION") ServerVersion version, @Mapper("templateWorld") SteamwarWorld template) {
+        SteamwarWorld world = createPersonalWorld(sender, name, version, template);
+        if (world != null) {
+            sender.system("BAU_WORLD_CREATED");
+        }
+    }
 
-            inventory.close();
-        });
-        inventory.addItem(8, new SWItem("RED_DYE", new Message("BAU_DELETE_GUI_CANCEL")), click -> inventory.close());
-        inventory.open();
+    @Register(value = "world start", description = "BAU_WORLD_START_USAGE")
+    public void startWorld(PlayerChatter sender, @Mapper("ownBauWorld") SteamwarWorld world) {
+        new ServerStarter().build(ServerVersion.get(world.getVersion()), world).send(sender.getPlayer()).start();
+    }
+
+    @Register(value = "world rename", description = "BAU_WORLD_RENAME_USAGE")
+    public void renameWorld(Chatter sender, @Mapper("ownBauWorld") SteamwarWorld world, String newName) {
+        if (hasTooManyPersonalWorlds(sender)) return;
+        if (SteamwarWorld.getBauWorld(sender.user(), newName, world.getVersion()) != null) {
+            sender.system("BAU_WORLD_EXISTS");
+            return;
+        }
+        world.rename(newName);
+        sender.system("BAU_WORLD_RENAMED");
+    }
+
+    @Register(value = "world delete", description = "BAU_WORLD_DELETE_USAGE")
+    public void deleteWorld(PlayerChatter sender, @Mapper("ownBauWorld") SteamwarWorld world) {
+        openDeleteWorld(sender, world);
+    }
+
+    @Register(value = "world upgrade", description = "BAU_WORLD_UPGRADE_USAGE")
+    public void upgradeWorld(Chatter sender, @Mapper("ownBauWorld") SteamwarWorld world, @ErrorMessage("BAU_WORLD_VERSION") ServerVersion version) {
+        if (hasTooManyPersonalWorlds(sender)) return;
+        world.changeVersion(version.getVersionSuffix());
+        sender.system("BAU_WORLD_UPGRADED");
     }
 
     @Register("test")
@@ -254,27 +311,244 @@ public class BauCommand extends SWCommand {
     }
 
     @Register(value = "lock", description = "BAU_LOCKED_OPTIONS")
-    public void lock(Chatter sender, BauLockState bauLockState) {
-        BauLock.setLocked(sender, bauLockState);
+    public void lock(Chatter sender, @Mapper("ownBauWorld") SteamwarWorld world, BauLockState bauLockState) {
+        BauLock.setLocked(sender, world, bauLockState);
     }
 
     @Register("unlock")
-    public void unlock(Chatter sender) {
-        BauLock.setLocked(sender, BauLockState.OPEN);
+    public void unlock(Chatter sender, @Mapper("ownBauWorld") SteamwarWorld world) {
+        BauLock.setLocked(sender, world, BauLockState.OPEN);
     }
 
-    private static void withMember(Chatter owner, SteamwarUser member, Consumer<BauweltMember> function) {
+    private static void withMembers(Chatter owner, String worldSelector, SteamwarUser member, Consumer<BauweltMember> function) {
         if (member == null) {
             owner.system("UNKNOWN_PLAYER");
             return;
         }
 
-        BauweltMember target = BauweltMember.getBauMember(owner.user().getId(), member.getId());
-        if (target == null) {
-            owner.system("BAU_MEMBER_NOMEMBER");
+        List<SteamwarWorld> worlds = selectedWorlds(owner, worldSelector);
+        if (worlds.isEmpty()) {
+            owner.system("BAU_WORLD_UNKNOWN");
             return;
         }
 
-        function.accept(target);
+        boolean found = false;
+        for (SteamwarWorld world : worlds) {
+            BauweltMember target = BauweltMember.getBauMember(world.getUuid(), member.getId());
+            if (target == null) continue;
+            found = true;
+            function.accept(target);
+        }
+
+        if (!found) {
+            owner.system("BAU_MEMBER_NOMEMBER");
+        }
+    }
+
+    @Mapper(value = "ownBauWorld", local = true)
+    private TypeMapper<SteamwarWorld> ownBauWorldMapper() {
+        return new TypeMapper<SteamwarWorld>() {
+            @Override
+            public SteamwarWorld map(Chatter sender, PreviousArguments previousArguments, String s) {
+                if (s == null || s.isEmpty()) return defaultPersonalWorld(sender);
+                return SteamwarWorld.getBauWorlds(sender.user()).stream()
+                        .filter(world -> world.getName().equalsIgnoreCase(s) || world.getUuid().toString().equalsIgnoreCase(s))
+                        .findFirst()
+                        .orElse(null);
+            }
+
+            @Override
+            public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
+                return SteamwarWorld.getBauWorlds(sender.user()).stream().map(SteamwarWorld::getName).toList();
+            }
+        };
+    }
+
+    @Mapper(value = "targetBauWorld", local = true)
+    private TypeMapper<SteamwarWorld> targetBauWorldMapper() {
+        return new TypeMapper<>() {
+            @Override
+            public SteamwarWorld map(Chatter sender, PreviousArguments previousArguments, String s) {
+                SteamwarUser owner = previousArguments.getAll(SteamwarUser.class).stream().findFirst().orElse(null);
+                if (owner == null) return null;
+                if (s == null || s.isEmpty()) return defaultPersonalWorld(owner);
+                return SteamwarWorld.getBauWorlds(owner).stream()
+                        .filter(world -> world.getName().equalsIgnoreCase(s) || world.getUuid().toString().equalsIgnoreCase(s))
+                        .findFirst()
+                        .orElse(null);
+            }
+
+            @Override
+            public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
+                SteamwarUser owner = previousArguments.getAll(SteamwarUser.class).stream().findFirst().orElse(null);
+                if (owner == null) return List.of();
+                return SteamwarWorld.getBauWorlds(owner).stream().map(SteamwarWorld::getName).toList();
+            }
+        };
+    }
+
+    @Mapper(value = "templateWorld", local = true)
+    private TypeMapper<SteamwarWorld> templateWorldMapper() {
+        return new TypeMapper<>() {
+            @Override
+            public SteamwarWorld map(Chatter sender, PreviousArguments previousArguments, String s) {
+                ServerVersion version = previousArguments.getAll(ServerVersion.class).stream().findFirst().orElse(null);
+                if (version == null) return null;
+                return SteamwarWorld.getTemplateWorld(s, version.getVersionSuffix());
+            }
+
+            @Override
+            public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
+                ServerVersion version = previousArguments.getAll(ServerVersion.class).stream().findFirst().orElse(null);
+                if (version == null) return List.of();
+                return SteamwarWorld.getTemplateWorlds(version.getVersionSuffix()).stream().map(SteamwarWorld::getName).toList();
+            }
+        };
+    }
+
+    private void openWorldList(PlayerChatter sender) {
+        List<SWListInv.SWListEntry<SteamwarWorld>> entries = new ArrayList<>();
+        for (SteamwarWorld world : SteamwarWorld.getBauWorlds(sender.user())) {
+            SWItem item = new SWItem("GRASS_BLOCK", new Message("PLAIN_STRING", "§e" + world.getName()))
+                    .addLore(new Message("PLAIN_STRING", "§7Version: §e" + world.getVersion()))
+                    .addLore(new Message("PLAIN_STRING", "§7Left: start, right: manage"));
+            entries.add(new SWListInv.SWListEntry<>(item, world));
+        }
+        SWListInv<SteamwarWorld> inventory = new SWListInv<>(sender, new Message("BAU_WORLD_GUI_TITLE"), entries, (click, world) -> {
+            if (click.isRightClick()) {
+                openWorldManagement(sender, world);
+            } else {
+                new ServerStarter().build(ServerVersion.get(world.getVersion()), world).send(sender.getPlayer()).start();
+            }
+        });
+        inventory.open();
+    }
+
+    private void openWorldManagement(PlayerChatter sender, SteamwarWorld world) {
+        SWInventory inventory = new SWInventory(sender, 9, new Message("PLAIN_STRING", "§e" + world.getName()));
+        inventory.addItem(0, new SWItem("ENDER_PEARL", new Message("PLAIN_STRING", "§aStart")), click -> {
+            inventory.close();
+            new ServerStarter().build(ServerVersion.get(world.getVersion()), world).send(sender.getPlayer()).start();
+        });
+        inventory.addItem(3, new SWItem("EXPERIENCE_BOTTLE", new Message("PLAIN_STRING", "§eUpgrade to latest")), click -> {
+            if (hasTooManyPersonalWorlds(sender)) {
+                inventory.close();
+                return;
+            }
+            world.changeVersion(ServerVersion.PAPER_21.getVersionSuffix());
+            sender.system("BAU_WORLD_UPGRADED");
+            inventory.close();
+        });
+        inventory.addItem(8, new SWItem("BARRIER", new Message("PLAIN_STRING", "§cDelete")), click -> openDeleteWorld(sender, world));
+        inventory.open();
+    }
+
+    private void openDeleteWorld(PlayerChatter sender, SteamwarWorld world) {
+        SWInventory inventory = new SWInventory(sender, 9, new Message("BAU_DELETE_GUI_NAME"));
+        inventory.addItem(0, new SWItem("LIME_DYE", new Message("BAU_DELETE_GUI_DELETE")), click -> {
+            VelocityCore.schedule(() -> {
+                Bauserver subserver = Bauserver.getByWorld(world.getUuid());
+                if (subserver != null) {
+                    subserver.stop();
+                }
+                world.markDeleted();
+                SubserverSystem.deleteFolder(VelocityCore.local, world.getStorageDirectory().getPath());
+                sender.system("BAU_DELETE_DELETED");
+            }).schedule();
+            inventory.close();
+        });
+        inventory.addItem(8, new SWItem("RED_DYE", new Message("BAU_DELETE_GUI_CANCEL")), click -> inventory.close());
+        inventory.open();
+    }
+
+    private void startPersonalWorld(PlayerChatter sender, SteamwarWorld world) {
+        if (world == null) {
+            world = defaultPersonalWorld(sender);
+        }
+        if (world == null) {
+            sender.system("BAU_WORLD_UNKNOWN");
+            return;
+        }
+        new ServerStarter().build(ServerVersion.get(world.getVersion()), world).send(sender.getPlayer()).start();
+    }
+
+    private static SteamwarWorld defaultPersonalWorld(Chatter sender) {
+        return defaultPersonalWorld(sender.user());
+    }
+
+    private static SteamwarWorld defaultPersonalWorld(SteamwarUser user) {
+        return SteamwarWorld.getBauWorlds(user).stream().findFirst().orElse(null);
+    }
+
+    private static List<SteamwarWorld> selectedWorlds(Chatter sender, String selector) {
+        List<SteamwarWorld> worlds = SteamwarWorld.getBauWorlds(sender.user());
+        if ("all".equalsIgnoreCase(selector)) {
+            return worlds;
+        }
+        String normalized = selector.toLowerCase(Locale.ROOT);
+        return worlds.stream()
+                .filter(world -> world.getName().toLowerCase(Locale.ROOT).equals(normalized))
+                .toList();
+    }
+
+    private static boolean forEachSelectedWorld(Chatter sender, String selector, Consumer<SteamwarWorld> consumer) {
+        List<SteamwarWorld> worlds = selectedWorlds(sender, selector);
+        if (worlds.isEmpty()) {
+            sender.system("BAU_WORLD_UNKNOWN");
+            return false;
+        }
+        worlds.forEach(consumer);
+        return true;
+    }
+
+    private SteamwarWorld createPersonalWorld(Chatter sender, String name, ServerVersion version, SteamwarWorld template) {
+        if (template == null || template.getVersion() != version.getVersionSuffix()) {
+            sender.system("BAU_WORLD_UNKNOWN");
+            return null;
+        }
+
+        if (sender.user().hasPerm(UserPerm.BUILD_UNLIMITED_WORLDS)) {
+            if (SteamwarWorld.getBauWorld(sender.user(), name, version.getVersionSuffix()) != null) {
+                sender.system("BAU_WORLD_EXISTS");
+                return null;
+            }
+            return SteamwarWorld.getOrCreateBauWorld(sender.user(), name, version.getVersionSuffix(), template.getStorageDirectory());
+        }
+
+        long limit = personalWorldLimit(sender);
+        long count = SteamwarWorld.countBauWorlds(sender.user());
+        if (count > limit) {
+            sender.system("BAU_WORLD_OVER_LIMIT_DELETE", limit);
+            return null;
+        }
+        if (count >= limit) {
+            sender.system("BAU_WORLD_LIMIT", limit);
+            return null;
+        }
+
+        if (SteamwarWorld.getBauWorld(sender.user(), name, version.getVersionSuffix()) != null) {
+            sender.system("BAU_WORLD_EXISTS");
+            return null;
+        }
+
+        return SteamwarWorld.getOrCreateBauWorld(sender.user(), name, version.getVersionSuffix(), template.getStorageDirectory());
+    }
+
+    private boolean hasTooManyPersonalWorlds(Chatter sender) {
+        if (sender.user().hasPerm(UserPerm.BUILD_UNLIMITED_WORLDS)) {
+            return false;
+        }
+
+        long limit = personalWorldLimit(sender);
+        if (SteamwarWorld.countBauWorlds(sender.user()) <= limit) {
+            return false;
+        }
+
+        sender.system("BAU_WORLD_OVER_LIMIT_DELETE", limit);
+        return true;
+    }
+
+    private long personalWorldLimit(Chatter sender) {
+        return sender.user().hasPerm(UserPerm.BUILD_EXTRA_WORLDS) ? SteamwarWorld.EXTRA_BAU_WORLD_LIMIT : SteamwarWorld.DEFAULT_BAU_WORLD_LIMIT;
     }
 }

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

@@ -26,6 +26,7 @@ import de.steamwar.linkage.Linked;
 import de.steamwar.messages.Chatter;
 import de.steamwar.messages.PlayerChatter;
 import de.steamwar.sql.GameModeConfig;
+import de.steamwar.sql.SteamwarWorld;
 import de.steamwar.sql.UserPerm;
 import de.steamwar.velocitycore.ArenaMode;
 import de.steamwar.velocitycore.ServerStarter;
@@ -33,11 +34,11 @@ import de.steamwar.velocitycore.ServerVersion;
 import de.steamwar.velocitycore.VelocityCore;
 
 import java.io.File;
-import java.io.IOException;
-import java.nio.file.Files;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.LinkedHashSet;
+import java.util.Set;
 
 @Linked
 public class BuilderCloudCommand extends SWCommand {
@@ -47,14 +48,23 @@ public class BuilderCloudCommand extends SWCommand {
     }
 
     @Register(value = "create", description = "BUILDERCLOUD_CREATE_USAGE")
-    public void create(Chatter sender, @ErrorMessage("BUILDERCLOUD_VERSION") ServerVersion version, @Mapper("map") String map, @OptionalValue("") @Mapper("generator") @AllowNull File generator) {
-        mapFile(version, map).mkdir();
-        sender.withPlayer(p -> new ServerStarter().builder(version, map, generator).send(p).start());
+    public void create(Chatter sender, @ErrorMessage("BUILDERCLOUD_VERSION") ServerVersion version, @Mapper("map") String map, @Mapper("templateWorld") SteamwarWorld template) {
+        if(mapExists(version, map)) {
+            sender.system("BUILDERCLOUD_EXISTING_MAP");
+            return;
+        }
+        if (template == null || template.getVersion() != version.getVersionSuffix()) {
+            sender.system("BAU_WORLD_UNKNOWN");
+            return;
+        }
+
+        SteamwarWorld.getOrCreateBuilderWorld(map, version.getVersionSuffix(), template.getStorageDirectory());
+        sender.withPlayer(p -> new ServerStarter().builder(version, map, template.getStorageDirectory()).send(p).start());
     }
 
     @Register(description = "BUILDERCLOUD_USAGE")
     public void start(PlayerChatter sender, @ErrorMessage("BUILDERCLOUD_VERSION") ServerVersion version, @Mapper("map") String map) {
-        if (!mapFile(version, map).exists()) {
+        if (!mapExists(version, map)) {
             sender.system("BUILDERCLOUD_UNKNOWN_MAP");
             return;
         }
@@ -64,36 +74,34 @@ public class BuilderCloudCommand extends SWCommand {
 
     @Register(value = "rename", description = "BUILDERCLOUD_RENAME_USAGE")
     public void rename(Chatter sender, @ErrorMessage("BUILDERCLOUD_VERSION") ServerVersion version, @Mapper("map") String oldName, String newName) {
-        File oldMap = mapFile(version, oldName);
-        if (!oldMap.exists()) {
+        SteamwarWorld oldMap = builderWorld(version, oldName);
+        if (oldMap == null) {
             sender.system("BUILDERCLOUD_UNKNOWN_MAP");
             return;
         }
 
-        File newMap = mapFile(version, newName);
-        if (newMap.exists()) {
+        if (mapExists(version, newName)) {
             sender.system("BUILDERCLOUD_EXISTING_MAP");
             return;
         }
 
-        try {
-            Files.move(oldMap.toPath(), newMap.toPath());
-        } catch (IOException e) {
-            throw new SecurityException(e);
-        }
+        oldMap.rename(newName);
 
         sender.system("BUILDERCLOUD_RENAMED");
     }
 
     @Register(value = "deploy", description = "BUILDERCLOUD_DEPLOY_USAGE")
     public void deploy(Chatter sender, @Mapper("nonHistoricArenaMode") GameModeConfig<String, String> arenaMode, @ErrorMessage("BUILDERCLOUD_VERSION") ServerVersion version, @Mapper("map") String map) {
-        if (!mapFile(version, map).exists()) {
+        SteamwarWorld builderWorld = builderWorld(version, map);
+        if (builderWorld == null) {
             sender.system("BUILDERCLOUD_UNKNOWN_MAP");
             return;
         }
 
         VelocityCore.schedule(() -> {
-            VelocityCore.local.execute("deployarena.py", arenaMode.configFile.getName(), Integer.toString(version.getVersionSuffix()), map);
+            String modeName = arenaMode.configFile.getName().replace(".yml", "");
+            SteamwarWorld arenaWorld = SteamwarWorld.getOrCreateArenaWorld(modeName, map, version.getVersionSuffix());
+            VelocityCore.local.execute("deployarena.py", arenaMode.configFile.getName(), Integer.toString(version.getVersionSuffix()), map, builderWorld.setupAndGetStoragePath(), arenaWorld.setupAndGetStoragePath());
             ArenaMode.init();
             sender.system("BUILDERCLOUD_DEPLOY_FINISHED");
         }).schedule();
@@ -111,60 +119,78 @@ public class BuilderCloudCommand extends SWCommand {
 
             @Override
             public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
-                File folder = getWorldFolder(previousArguments, 1);
-
-                String[] files;
-                if (folder == null || (files = folder.list()) == null) {
+                ServerVersion version = getVersion(previousArguments, 1);
+                if (version == null) {
                     return Collections.emptyList();
                 }
 
-                return Arrays.stream(files).filter(file -> new File(folder, file).isDirectory()).filter(file -> s.startsWith(".") || !file.startsWith(".")).toList();
+                Set<String> maps = new LinkedHashSet<>();
+                SteamwarWorld.getBuilderWorlds(version.getVersionSuffix()).stream()
+                        .map(SteamwarWorld::getName)
+                        .forEach(maps::add);
+
+                File legacyFolder = new File(version.getWorldFolder(ServerStarter.LEGACY_BUILDER_BASE_PATH));
+                String[] files = legacyFolder.list();
+                if(files != null)
+                    Arrays.stream(files).filter(file -> new File(legacyFolder, file).isDirectory()).forEach(maps::add);
+
+                return maps.stream()
+                        .filter(file -> s.startsWith(".") || !file.startsWith("."))
+                        .toList();
             }
         };
     }
 
     @Cached(global = true)
-    @Mapper(value = "generator", local = true)
-    private TypeMapper<File> generatorTypeMapper() {
+    @Mapper(value = "templateWorld", local = true)
+    private TypeMapper<SteamwarWorld> templateWorldMapper() {
 
-        return new TypeMapper<File>() {
+        return new TypeMapper<>() {
             @Override
-            public File map(Chatter sender, PreviousArguments previousArguments, String s) {
-                if (s.isEmpty()) return null;
-
-                File folder = getWorldFolder(previousArguments, 2);
-
-                if (folder == null) throw new SecurityException();
-
-                File generator = new File(folder, s + ".dat");
-                if (!generator.exists() || !generator.isFile()) {
-                    throw new SecurityException();
-                }
-
-                return generator;
+            public SteamwarWorld map(Chatter sender, PreviousArguments previousArguments, String s) {
+                ServerVersion version = previousArguments.getAll(ServerVersion.class).stream().findFirst().orElse(null);
+                if (version == null) return null;
+                return SteamwarWorld.getTemplateWorld(s, version.getVersionSuffix());
             }
 
             @Override
             public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
-                File folder = getWorldFolder(previousArguments, 2);
-
-                String[] files;
-                if (folder == null || (files = folder.list()) == null) {
+                ServerVersion version = previousArguments.getAll(ServerVersion.class).stream().findFirst().orElse(null);
+                if (version == null) {
                     return Collections.emptyList();
                 }
 
-                return Arrays.stream(files).filter(file -> new File(folder, file).isFile()).filter(file -> file.endsWith(".dat")).map(file -> file.substring(0, file.length() - 4)).toList();
+                return SteamwarWorld.getTemplateWorlds(version.getVersionSuffix()).stream()
+                        .map(SteamwarWorld::getName)
+                        .toList();
             }
         };
     }
 
-    private File mapFile(ServerVersion version, String map) {
-        return new File(version.getWorldFolder(ServerStarter.BUILDER_BASE_PATH), map);
+    private SteamwarWorld builderWorld(ServerVersion version, String map) {
+        SteamwarWorld world = SteamwarWorld.getBuilderWorld(map, version.getVersionSuffix());
+        if(world != null)
+            return world;
+
+        File legacyWorld = mapFile(version, map);
+        if(!legacyWorld.exists())
+            return null;
+
+        return SteamwarWorld.getOrCreateBuilderWorld(map, version.getVersionSuffix(), legacyWorld);
     }
 
-    private File getWorldFolder(PreviousArguments previousArguments, int offset) {
-        ServerVersion v = ServerVersion.get(previousArguments.userArgs[previousArguments.userArgs.length - offset]);
-        if (v == null) return null;
-        return new File(v.getWorldFolder(ServerStarter.BUILDER_BASE_PATH));
+    private boolean mapExists(ServerVersion version, String map) {
+        return SteamwarWorld.getBuilderWorld(map, version.getVersionSuffix()) != null || mapFile(version, map).exists();
+    }
+
+    private File mapFile(ServerVersion version, String map) {
+        return new File(version.getWorldFolder(ServerStarter.LEGACY_BUILDER_BASE_PATH), map);
+    }
+
+    private ServerVersion getVersion(PreviousArguments previousArguments, int offset) {
+        if (previousArguments.userArgs.length < offset) {
+            return null;
+        }
+        return ServerVersion.get(previousArguments.userArgs[previousArguments.userArgs.length - offset]);
     }
 }

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/GDPRQuery.java

@@ -24,11 +24,16 @@ import de.steamwar.linkage.Linked;
 import de.steamwar.messages.Chatter;
 import de.steamwar.messages.PlayerChatter;
 import de.steamwar.sql.SteamwarUser;
+import de.steamwar.sql.SteamwarWorld;
 import de.steamwar.sql.UserPerm;
 import de.steamwar.sql.internal.Statement;
+import de.steamwar.velocitycore.ServerStarter;
+import de.steamwar.velocitycore.ServerVersion;
 import de.steamwar.velocitycore.VelocityCore;
 
 import java.io.*;
+import java.util.LinkedHashSet;
+import java.util.Set;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
@@ -64,12 +69,21 @@ public class GDPRQuery extends SWCommand {
         copy(getClass().getClassLoader().getResourceAsStream("GDPRQueryREADME.md"), out, "README.txt");
 
         sender.system("GDPR_STATUS_WORLD");
-        copyBauwelt(user, out, "/home/minecraft/userworlds/" + user.getUUID().toString(), "BuildWorld12");
-        copyBauwelt(user, out, "/home/minecraft/userworlds15/" + user.getId(), "BuildWorld15");
+        Set<Integer> exportedVersions = new LinkedHashSet<>();
+        for(ServerVersion version : ServerVersion.values()) {
+            int versionSuffix = version.getVersionSuffix();
+            if(!exportedVersions.add(versionSuffix))
+                continue;
+
+            SteamwarWorld world = SteamwarWorld.getBauWorld(user, versionSuffix);
+            if(world != null)
+                copyBauwelt(user, out, world.setupAndGetStoragePath(), "BuildWorld" + versionSuffix);
+            else
+                copyLegacyBauwelt(user, out, version);
+        }
 
         sender.system("GDPR_STATUS_INVENTORIES");
-        copyPlayerdata(user, out, "/home/minecraft/userworlds", "BuildInventories12");
-        copyPlayerdata(user, out, "/home/minecraft/userworlds15", "BuildInventories15");
+        copyPlayerdata(user, out, SteamwarWorld.WORLD_STORAGE, "BuildInventories");
 
         sender.system("GDPR_STATUS_DATABASE");
         sqlCSV(user, out, bannedIPs, "BannedIPs.csv");
@@ -99,8 +113,8 @@ public class GDPRQuery extends SWCommand {
     }
 
     private static final Statement bannedIPs = new Statement("SELECT Timestamp, IP FROM BannedUserIPs WHERE UserID = ?");
-    private static final Statement bauweltMember = new Statement("SELECT BauweltID AS Bauwelt, WorldEdit, World FROM BauweltMember WHERE MemberID = ?");
-    private static final Statement bauweltMembers = new Statement("SELECT u.UserName AS 'User', m.WorldEdit AS WorldEdit, m.World AS World FROM BauweltMember m INNER JOIN UserData u ON m.MemberID = u.id WHERE m.BauweltID = ?");
+    private static final Statement bauweltMember = new Statement("SELECT WorldID AS Bauwelt, WorldEdit, World FROM BauweltMember WHERE MemberID = ?");
+    private static final Statement bauweltMembers = new Statement("SELECT w.Name AS World, u.UserName AS 'User', m.WorldEdit AS WorldEdit, m.World AS World FROM BauweltMember m INNER JOIN UserData u ON m.MemberID = u.id INNER JOIN world w ON m.WorldID = w.id WHERE w.Owner = ?");
     private static final Statement checkedSchems = new Statement("SELECT NodeName AS Schematic, StartTime, EndTime, DeclineReason AS Result FROM CheckedSchematic WHERE NodeOwner = ? ORDER BY StartTime ASC");
     private static final Statement fights = new Statement("SELECT p.Team AS Team, p.Kit AS Kit, p.Kills AS Kills, p.IsOut AS Died, f.GameMode AS GameMode, f.Server AS Server, f.StartTime AS StartTime, f.Duration AS Duration, (f.BlueLeader = p.UserID) AS IsBlueLeader, (f.RedLeader = p.UserID) AS IsRedLeader, f.Win AS Winner, f.WinCondition AS WinCondition FROM Fight f INNER JOIN FightPlayer p ON f.FightID = p.FightID WHERE p.UserID = ? ORDER BY StartTime ASC");
     private static final Statement ignoredPlayers = new Statement("SELECT u.UserName AS IgnoredPlayer FROM IgnoredPlayers i INNER JOIN UserData u ON i.Ignored = u.id WHERE Ignorer = ?");
@@ -230,6 +244,18 @@ public class GDPRQuery extends SWCommand {
         }
     }
 
+    private void copyLegacyBauwelt(SteamwarUser user, ZipOutputStream out, ServerVersion version) throws IOException {
+        File legacyIdWorld = new File(version.getWorldFolder(ServerStarter.LEGACY_WORLDS_BASE_PATH), String.valueOf(user.getId()));
+        if(legacyIdWorld.exists()) {
+            copyBauwelt(user, out, legacyIdWorld.getPath(), "BuildWorld" + version.getVersionSuffix());
+            return;
+        }
+
+        File legacyUuidWorld = new File(version.getWorldFolder(ServerStarter.LEGACY_WORLDS_BASE_PATH), user.getUUID().toString());
+        if(legacyUuidWorld.exists())
+            copyBauwelt(user, out, legacyUuidWorld.getPath(), "BuildWorld" + version.getVersionSuffix());
+    }
+
     private void copyPlayerdata(SteamwarUser user, ZipOutputStream out, String inDir, String outDir) throws IOException {
         File worlds = new File(inDir);
         String path = "playerdata/" + user.getUUID().toString() + ".dat";

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

@@ -30,6 +30,7 @@ import de.steamwar.messages.PlayerChatter;
 import de.steamwar.sql.*;
 import de.steamwar.velocitycore.VelocityCore;
 import de.steamwar.velocitycore.discord.DiscordBot;
+import de.steamwar.velocitycore.inventory.SWInventory;
 import de.steamwar.velocitycore.inventory.SWItem;
 import de.steamwar.velocitycore.inventory.SWListInv;
 import de.steamwar.velocitycore.util.SteamwarPrefix;
@@ -437,6 +438,117 @@ public class TeamCommand extends SWCommand {
         }
     }
 
+    @Register("worlds")
+    @Register("world")
+    public void worlds(@Validator("isInTeam") PlayerChatter sender) {
+        List<SWListInv.SWListEntry<SteamwarWorld>> entries = SteamwarWorld.getTeamWorlds(Team.byId(sender.user().getTeam())).stream()
+                .map(world -> new SWListInv.SWListEntry<>(
+                        new SWItem("GRASS_BLOCK", new Message("PLAIN_STRING", "§e" + world.getName()))
+                                .addLore(new Message("PLAIN_STRING", "§7Version: §e" + world.getVersion()))
+                                .addLore(new Message("PLAIN_STRING", "§7Left: start, right: manage")),
+                        world
+                ))
+                .toList();
+        SWListInv<SteamwarWorld> inv = new SWListInv<>(sender, new Message("TEAM_WORLD_GUI_TITLE"), entries, (click, world) -> {
+            if (click.isRightClick() && sender.user().isLeader()) {
+                openTeamWorldManagement(sender, world);
+            } else {
+                startTeamWorld(sender, world);
+            }
+        });
+        inv.open();
+    }
+
+    @Register("world")
+    public void world(@Validator("isInTeam") PlayerChatter sender, @Mapper("teamWorld") SteamwarWorld world) {
+        startTeamWorld(sender, world);
+    }
+
+    @Register(value = "world create", description = "TEAM_WORLD_CREATE_USAGE")
+    public void createWorld(@Validator("isLeader") Chatter sender, String name, @ErrorMessage("BAU_WORLD_VERSION") ServerVersion version, @Mapper("templateWorld") SteamwarWorld template) {
+        Team team = Team.byId(sender.user().getTeam());
+        if (template == null || template.getVersion() != version.getVersionSuffix()) {
+            sender.system("BAU_WORLD_UNKNOWN");
+            return;
+        }
+        if (SteamwarWorld.getTeamWorld(team, name, version.getVersionSuffix()) != null) {
+            sender.system("TEAM_WORLD_EXISTS");
+            return;
+        }
+        long count = SteamwarWorld.countTeamWorlds(team);
+        if (count > SteamwarWorld.TEAM_WORLD_LIMIT) {
+            sender.system("TEAM_WORLD_OVER_LIMIT_DELETE", SteamwarWorld.TEAM_WORLD_LIMIT);
+            return;
+        }
+        if (count >= SteamwarWorld.TEAM_WORLD_LIMIT) {
+            sender.system("TEAM_WORLD_LIMIT", SteamwarWorld.TEAM_WORLD_LIMIT);
+            return;
+        }
+        SteamwarWorld.getOrCreateTeamWorld(team, name, version.getVersionSuffix(), template.getStorageDirectory());
+        sender.system("TEAM_WORLD_CREATED");
+    }
+
+    @Register(value = "world rename", description = "TEAM_WORLD_RENAME_USAGE")
+    public void renameWorld(@Validator("isLeader") Chatter sender, @Mapper("teamWorld") SteamwarWorld world, String newName) {
+        Team team = Team.byId(sender.user().getTeam());
+        if (hasTooManyTeamWorlds(sender, team)) return;
+        if (SteamwarWorld.getTeamWorld(team, newName, world.getVersion()) != null) {
+            sender.system("TEAM_WORLD_EXISTS");
+            return;
+        }
+        world.rename(newName);
+        sender.system("TEAM_WORLD_RENAMED");
+    }
+
+    @Register(value = "world upgrade", description = "TEAM_WORLD_UPGRADE_USAGE")
+    public void upgradeWorld(@Validator("isLeader") Chatter sender, @Mapper("teamWorld") SteamwarWorld world, @ErrorMessage("BAU_WORLD_VERSION") ServerVersion version) {
+        if (hasTooManyTeamWorlds(sender, Team.byId(sender.user().getTeam()))) return;
+        world.changeVersion(version.getVersionSuffix());
+        sender.system("TEAM_WORLD_UPGRADED");
+    }
+
+    @Register(value = "world delete", description = "TEAM_WORLD_DELETE_USAGE")
+    public void deleteWorld(@Validator("isLeader") PlayerChatter sender, @Mapper("teamWorld") SteamwarWorld world) {
+        SWInventory inventory = new SWInventory(sender, 9, new Message("BAU_DELETE_GUI_NAME"));
+        inventory.addItem(0, new SWItem("LIME_DYE", new Message("BAU_DELETE_GUI_DELETE")), click -> {
+            VelocityCore.schedule(() -> {
+                Bauserver subserver = Bauserver.getByWorld(world.getUuid());
+                if (subserver != null) {
+                    subserver.stop();
+                }
+                world.markDeleted();
+                SubserverSystem.deleteFolder(VelocityCore.local, world.getStorageDirectory().getPath());
+                sender.system("TEAM_WORLD_DELETED");
+            }).schedule();
+            inventory.close();
+        });
+        inventory.addItem(8, new SWItem("RED_DYE", new Message("BAU_DELETE_GUI_CANCEL")), click -> inventory.close());
+        inventory.open();
+    }
+
+    private void startTeamWorld(PlayerChatter sender, SteamwarWorld world) {
+        new ServerStarter().build(ServerVersion.get(world.getVersion()), world).send(sender.getPlayer()).start();
+    }
+
+    private void openTeamWorldManagement(PlayerChatter sender, SteamwarWorld world) {
+        SWInventory inventory = new SWInventory(sender, 9, new Message("PLAIN_STRING", "§e" + world.getName()));
+        inventory.addItem(0, new SWItem("ENDER_PEARL", new Message("PLAIN_STRING", "§aStart")), click -> {
+            inventory.close();
+            startTeamWorld(sender, world);
+        });
+        inventory.addItem(3, new SWItem("EXPERIENCE_BOTTLE", new Message("PLAIN_STRING", "§eUpgrade to latest")), click -> {
+            if (hasTooManyTeamWorlds(sender, Team.byId(sender.user().getTeam()))) {
+                inventory.close();
+                return;
+            }
+            world.changeVersion(ServerVersion.PAPER_21.getVersionSuffix());
+            sender.system("TEAM_WORLD_UPGRADED");
+            inventory.close();
+        });
+        inventory.addItem(8, new SWItem("BARRIER", new Message("PLAIN_STRING", "§cDelete")), click -> deleteWorld(sender, world));
+        inventory.open();
+    }
+
     @Register("event")
     public void event(@Validator("isLeader") Chatter sender, Event event) {
         Team team = Team.byId(sender.user().getTeam());
@@ -585,6 +697,56 @@ public class TeamCommand extends SWCommand {
         };
     }
 
+    @Mapper(value = "teamWorld", local = true)
+    public TypeMapper<SteamwarWorld> teamWorldMapper() {
+        return new TypeMapper<>() {
+            @Override
+            public SteamwarWorld map(Chatter sender, PreviousArguments previousArguments, String s) {
+                Team team = Team.byId(sender.user().getTeam());
+                return SteamwarWorld.getTeamWorlds(team).stream()
+                        .filter(world -> world.getName().equalsIgnoreCase(s) || world.getUuid().toString().equalsIgnoreCase(s))
+                        .findFirst()
+                        .orElse(null);
+            }
+
+            @Override
+            public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
+                if (sender.user().getTeam() == 0) return List.of();
+                return SteamwarWorld.getTeamWorlds(Team.byId(sender.user().getTeam())).stream()
+                        .map(SteamwarWorld::getName)
+                        .toList();
+            }
+        };
+    }
+
+    @Mapper(value = "templateWorld", local = true)
+    public TypeMapper<SteamwarWorld> templateWorldMapper() {
+        return new TypeMapper<>() {
+            @Override
+            public SteamwarWorld map(Chatter sender, PreviousArguments previousArguments, String s) {
+                ServerVersion version = previousArguments.getAll(ServerVersion.class).stream().findFirst().orElse(null);
+                if (version == null) return null;
+                return SteamwarWorld.getTemplateWorld(s, version.getVersionSuffix());
+            }
+
+            @Override
+            public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
+                ServerVersion version = previousArguments.getAll(ServerVersion.class).stream().findFirst().orElse(null);
+                if (version == null) return List.of();
+                return SteamwarWorld.getTemplateWorlds(version.getVersionSuffix()).stream().map(SteamwarWorld::getName).toList();
+            }
+        };
+    }
+
+    private boolean hasTooManyTeamWorlds(Chatter sender, Team team) {
+        if (SteamwarWorld.countTeamWorlds(team) <= SteamwarWorld.TEAM_WORLD_LIMIT) {
+            return false;
+        }
+
+        sender.system("TEAM_WORLD_OVER_LIMIT_DELETE", SteamwarWorld.TEAM_WORLD_LIMIT);
+        return true;
+    }
+
     private boolean checkTeamName(Chatter sender, Team team, String arg) {
         Team t = Team.get(arg);
         if (t != null && t.getTeamId() != team.getTeamId()) {

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

@@ -120,17 +120,26 @@ public class TpCommand extends SWCommand {
             }
         } else if (Subserver.isBuild(subserver)) {
             Bauserver bauserver = (Bauserver) subserver;
+            SteamwarWorld world = SteamwarWorld.getWorld(bauserver.getWorld());
+            if (world != null && world.getType() == WorldType.TEAM) {
+                if (sender.user().getTeam() != world.getTeam().getValue()) {
+                    sender.system("JOIN_PLAYER_BLOCK");
+                    return;
+                }
+                SubserverSystem.sendPlayer(subserver, sender.getPlayer());
+                return;
+            }
             Player checker = VelocityCore.getProxy().getPlayer(bauserver.getOwner()).orElse(null);
             if (checker != null && CheckCommand.isChecking(checker)) {
                 if (!sender.user().hasPerm(UserPerm.CHECK) && CheckCommand.getCheckingSchem(checker).getOwner() != sender.user().getId()) {
                     sender.system("JOIN_PLAYER_BLOCK");
                     return;
                 }
-            } else if (BauLock.isLocked(SteamwarUser.get(bauserver.getOwner()), sender.user())) {
+            } else if (world != null && BauLock.isLocked(world, sender.user())) {
                 sender.system("BAU_LOCKED_NOALLOWED");
                 Chatter.of(bauserver.getOwner()).system("BAU_LOCK_BLOCKED", sender);
                 return;
-            } else if (!bauserver.getOwner().equals(sender.user().getUUID()) && BauweltMember.getBauMember(bauserver.getOwner(), sender.user().getUUID()) == null) {
+            } else if (!bauserver.getOwner().equals(sender.user().getUUID()) && BauweltMember.getBauMember(bauserver.getWorld(), sender.user().getUUID()) == null) {
                 SubserverSystem.sendDeniedMessage(sender, bauserver.getOwner());
                 sender.system("JOIN_PLAYER_BLOCK");
                 return;

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

@@ -95,6 +95,7 @@ public class CouncilChannel extends StaticMessageChannel {
         super(threadChannel, () -> {
             MessageCreateBuilder messageCreateBuilder = new MessageCreateBuilder();
             messageCreateBuilder.setContent("# Ratsmitglieder");
+            Set<String> uniqueNames = new HashSet<>();
             membersByRole.get(role)
                     .stream()
                     .map(member -> {
@@ -105,6 +106,7 @@ public class CouncilChannel extends StaticMessageChannel {
                     })
                     .sorted(Map.Entry.comparingByKey())
                     .forEach(entry -> {
+                        if (!uniqueNames.add(entry.getKey())) return;
                         messageCreateBuilder.addEmbeds(new EmbedBuilder()
                                 .setTitle(entry.getKey())
                                 .setImage(entry.getValue() == null ? null : "https://api.steamwar.de/data/skin/" + entry.getValue())

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

@@ -25,37 +25,39 @@ import de.steamwar.network.packets.server.BaulockUpdatePacket;
 import de.steamwar.persistent.Bauserver;
 import de.steamwar.sql.BauweltMember;
 import de.steamwar.sql.SteamwarUser;
-import de.steamwar.sql.UserConfig;
+import de.steamwar.sql.SteamwarWorld;
 import de.steamwar.sql.UserPerm;
+import de.steamwar.sql.WorldType;
 import de.steamwar.velocitycore.network.NetworkSender;
 import lombok.experimental.UtilityClass;
 
 @UtilityClass
 public class BauLock {
 
-    private static final String BAU_LOCK_CONFIG_NAME = "baulockstate";
-
-    public static void setLocked(Chatter owner, BauLockState state) {
-        UserConfig.updatePlayerConfig(owner.user().getId(), BAU_LOCK_CONFIG_NAME, state == BauLockState.OPEN ? null : state.name());
+    public static void setLocked(Chatter owner, SteamwarWorld world, BauLockState state) {
+        world.changeLockState(state == BauLockState.OPEN ? null : state.name());
         owner.system("BAU_LOCKED_" + state.name());
 
-        Bauserver bauserver = Bauserver.get(owner.user().getUUID());
+        Bauserver bauserver = Bauserver.getByWorld(world.getUuid());
         if (bauserver != null) {
             bauserver.getRegisteredServer().getPlayersConnected().stream().findAny().ifPresent(player -> NetworkSender.send(player, new BaulockUpdatePacket()));
         }
     }
 
-    public static boolean isLocked(SteamwarUser owner, SteamwarUser target) {
-        if (owner.getId() == target.getId()) return false;
+    public static boolean isLocked(SteamwarWorld world, SteamwarUser target) {
+        if (world.getType() != WorldType.BAU || world.getOwner() == null) return false;
+
+        SteamwarUser owner = SteamwarUser.byId(world.getOwner().getValue());
+        if (owner == null || owner.getId() == target.getId()) return false;
 
         boolean locked;
-        String state = UserConfig.getConfig(owner.getId(), BAU_LOCK_CONFIG_NAME);
+        String state = world.getLockState();
         switch (state == null ? BauLockState.OPEN : BauLockState.valueOf(state)) {
             case NOBODY:
                 locked = true;
                 break;
             case SUPERVISOR:
-                BauweltMember member = BauweltMember.getBauMember(owner.getId(), target.getId());
+                BauweltMember member = BauweltMember.getBauMember(world.getUuid(), target.getId());
                 locked = member == null || !member.isSupervisor();
                 break;
             case SERVERTEAM: