Merge pull request '1.21.6 Fightsystem' (#134) from 1.21.6/fightsystem into main

Reviewed-on: #134
Reviewed-by: YoyoNow <yoyonow@noreply.localhost>

BauSystem/BauSystem_Main/src/BauSystem.properties

@@ -25,7 +25,7 @@ PAGE_LIST=§e Page ({0}/{1}) »»
 LIST_PREVIOUS_PAGE=§ePrevious page
 LIST_NEXT_PAGE=§eNext page
 # Permissions
-NO_PERMISSION=You are not allowed to use that here
+NO_PERMISSION=§7You are not allowed to use that here
 SPECTATOR=§fSpectator
 # Scoreboard
 SCOREBOARD_TIME=Time
@@ -390,6 +390,12 @@ INVENTORY_FILL_HELP=§8/§einventoryfill §8- §7Toggles InventoryFill
 INVENTORY_FILL_INFO=§7Helps you fill containers by looking at them while sneaking and dropping the item. Or just scroll on a container to change the amount of the item inside.
 INVENTORY_FILL_ENABLE=§aInventoryFiller activated
 INVENTORY_FILL_DISABLE=§cInventoryFiller deactivated
+INVENTORY_FILL_GUI_NAME=Inventory Filler
+INVENTORY_FILL_GUI_POWER=§ePower§8:§7 {0}
+INVENTORY_FILL_GUI_TNT=§eTNT
+# Ray Visualizer
+RAY_VISUALIZER_ENABLE=§aRayVisualizer activated
+RAY_VISUALIZER_DISABLE=§aRayVisualizer deactivated
 # Killchecker
 KILLCHECKER_HELP_ENABLE=§8/§ekillchecker enable §8- §7Enables Killchecker / Recalculates kills
 KILLCHECKER_HELP_DISABLE=§8/§ekillchecker disable §8- §7Disables Killchecker

BauSystem/BauSystem_Main/src/BauSystem_de.properties

@@ -25,7 +25,7 @@ PAGE_LIST=§e Seite ({0}/{1}) »»
 LIST_PREVIOUS_PAGE=§eVorherige Seite
 LIST_NEXT_PAGE=§eNächste Seite
 # Permission
-NO_PERMISSION=Du darfst dies hier nicht nutzen
+NO_PERMISSION=§7Du darfst dies hier nicht nutzen
 SPECTATOR=§fZuschauer
 # Scoreboard
 SCOREBOARD_TIME=Uhrzeit
@@ -350,8 +350,11 @@ SMART_PLACE_DISABLE=§cSmartPlace deaktiviert
 # InventoryFiller
 INVENTORY_FILL_HELP=§8/§einventoryfill §8- §7Toggled InventoryFill
 INVENTORY_FILL_INFO=§7Hilft dir, Behälter zu füllen, indem du sie beim sneaken ansiehst und den Gegenstand fallen lässt. Oder scrolle einfach auf einen Behälter, um die Menge des gehaltenen Gegenstandes darin zu ändern.
-INVENTORY_FILL_ENABLE=§aInventoryFiller activated
-INVENTORY_FILL_DISABLE=§cInventoryFiller deactivated
+INVENTORY_FILL_ENABLE=§aInventoryFiller aktiviert
+INVENTORY_FILL_DISABLE=§cInventoryFiller deaktiviert
+# Ray Visualizer
+RAY_VISUALIZER_ENABLE=§aRayVisualizer aktiviert
+RAY_VISUALIZER_DISABLE=§aRayVisualizer deaktiviert
 # Killchecker
 KILLCHECKER_HELP_ENABLE=§8/§ekillchecker enable §8- §7Aktiviert Killchecker / Berechnet kills neu
 KILLCHECKER_HELP_DISABLE=§8/§ekillchecker disable §8- §7Deaktiviert Killchecker

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/inventoryfiller/InventoryFillerCommand.java

@@ -4,12 +4,45 @@ import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.SWUtils;
 import de.steamwar.bausystem.configplayer.Config;
 import de.steamwar.command.SWCommand;
+import de.steamwar.inventory.SWInventory;
+import de.steamwar.inventory.SWItem;
 import de.steamwar.linkage.Linked;
+import org.bukkit.Material;
+import org.bukkit.block.Barrel;
+import org.bukkit.block.BlockState;
+import org.bukkit.block.Chest;
+import org.bukkit.block.ShulkerBox;
 import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.BlockStateMeta;
+
+import java.util.HashMap;
+import java.util.Map;
 
 @Linked
 public class InventoryFillerCommand extends SWCommand {
 
+    private static final Map<Integer, Integer> POWER_TO_FILLLEVEL = new HashMap<>();
+
+    static {
+        POWER_TO_FILLLEVEL.put(0, 0);
+        POWER_TO_FILLLEVEL.put(1, 1);
+        POWER_TO_FILLLEVEL.put(2, 1 * 64 + 60);
+        POWER_TO_FILLLEVEL.put(3, 3 * 64 + 55);
+        POWER_TO_FILLLEVEL.put(4, 5 * 64 + 51);
+        POWER_TO_FILLLEVEL.put(5, 7 * 64 + 46);
+        POWER_TO_FILLLEVEL.put(6, 9 * 64 + 42);
+        POWER_TO_FILLLEVEL.put(7, 11 * 64 + 37);
+        POWER_TO_FILLLEVEL.put(8, 13 * 64 + 32);
+        POWER_TO_FILLLEVEL.put(9, 15 * 64 + 28);
+        POWER_TO_FILLLEVEL.put(10, 17 * 64 + 23);
+        POWER_TO_FILLLEVEL.put(11, 19 * 64 + 19);
+        POWER_TO_FILLLEVEL.put(12, 21 * 64 + 14);
+        POWER_TO_FILLLEVEL.put(13, 23 * 64 + 10);
+        POWER_TO_FILLLEVEL.put(14, 25 * 64 + 5);
+        POWER_TO_FILLLEVEL.put(15, 27 * 64 + 0);
+    }
+
     public InventoryFillerCommand() {
         super("inventoryfill");
     }
@@ -21,8 +54,116 @@ public class InventoryFillerCommand extends SWCommand {
         if (!inventoryFill) {
             SWUtils.sendToActionbar(player, BauSystem.MESSAGE.parse("INVENTORY_FILL_ENABLE", player));
             BauSystem.MESSAGE.send("INVENTORY_FILL_INFO", player);
-        }else {
+        } else {
             SWUtils.sendToActionbar(player, BauSystem.MESSAGE.parse("INVENTORY_FILL_DISABLE", player));
         }
     }
+
+    @Register("gui")
+    public void gui(Player player) {
+        SWInventory inventory = new SWInventory(player, 18, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_NAME", player));
+        inventory.setItem(0, new SWItem(Material.REDSTONE, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 0)).setAmount(1));
+        inventory.setItem(1, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 1)).setAmount(1));
+        inventory.setItem(2, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 2)).setAmount(2));
+        inventory.setItem(3, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 3)).setAmount(3));
+        inventory.setItem(4, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 4)).setAmount(4));
+        inventory.setItem(5, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 5)).setAmount(5));
+        inventory.setItem(6, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 6)).setAmount(6));
+        inventory.setItem(7, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 7)).setAmount(7));
+        inventory.setItem(8, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 8)).setAmount(8));
+        inventory.setItem(9, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 9)).setAmount(9));
+        inventory.setItem(10, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 10)).setAmount(10));
+        inventory.setItem(11, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 11)).setAmount(11));
+        inventory.setItem(12, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 12)).setAmount(12));
+        inventory.setItem(13, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 13)).setAmount(13));
+        inventory.setItem(14, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 14)).setAmount(14));
+        inventory.setItem(15, new SWItem(Material.REDSTONE_TORCH, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_POWER", player, 15)).setAmount(15));
+        inventory.setItem(17, new SWItem(Material.TNT, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_TNT", player)));
+
+        for (int i = 0; i < 16; i++) {
+            inventory.setEventCallback(i, inventoryClickEvent -> {
+                selectInventoryType(player, inventoryClickEvent.getCurrentItem().getItemMeta().getDisplayName(), Material.DANDELION, POWER_TO_FILLLEVEL.get(inventoryClickEvent.getCurrentItem().getAmount()));
+            });
+        }
+        inventory.setEventCallback(17, inventoryClickEvent -> {
+            selectInventoryType(player, inventoryClickEvent.getCurrentItem().getItemMeta().getDisplayName(), Material.TNT, POWER_TO_FILLLEVEL.get(15));
+        });
+
+        inventory.open();
+    }
+
+    private final Material[] SHULKER_BOX_MATERIALS = new Material[]{
+            Material.SHULKER_BOX,
+            Material.WHITE_SHULKER_BOX,
+            Material.LIGHT_GRAY_SHULKER_BOX,
+            Material.GRAY_SHULKER_BOX,
+            Material.BLACK_SHULKER_BOX,
+            Material.BROWN_SHULKER_BOX,
+            Material.RED_SHULKER_BOX,
+            Material.ORANGE_SHULKER_BOX,
+            Material.YELLOW_SHULKER_BOX,
+            Material.LIME_SHULKER_BOX,
+            Material.GREEN_SHULKER_BOX,
+            Material.CYAN_SHULKER_BOX,
+            Material.LIGHT_BLUE_SHULKER_BOX,
+            Material.BLUE_SHULKER_BOX,
+            Material.PURPLE_SHULKER_BOX,
+            Material.MAGENTA_SHULKER_BOX,
+            Material.PINK_SHULKER_BOX
+    };
+
+    private void selectInventoryType(Player player, String name, Material material, int count) {
+        ItemStack[] itemStacks = new ItemStack[27];
+        int index = 0;
+        int amount = count;
+        while (amount > 0) {
+            ItemStack stack;
+            if (amount > 64) {
+                stack = new ItemStack(material, 64);
+                amount -= 64;
+            } else {
+                stack = new ItemStack(material, amount);
+                amount = 0;
+            }
+            itemStacks[index++] = stack;
+        }
+
+        SWInventory inventory = new SWInventory(player, 27, BauSystem.MESSAGE.parse("INVENTORY_FILL_GUI_NAME", player));
+        int i = 0;
+        for (Material type : SHULKER_BOX_MATERIALS) {
+            inventory.setItemEvent(i++, generateFilledInventory(name, type, itemStacks), inventoryClickEvent -> {
+                SWUtils.giveItemToPlayer(player, inventoryClickEvent.getCurrentItem());
+            });
+        }
+        inventory.setItemEvent(27 - 6, generateFilledInventory(name, Material.CHEST, itemStacks), inventoryClickEvent -> {
+            SWUtils.giveItemToPlayer(player, inventoryClickEvent.getCurrentItem());
+        });
+        inventory.setItemEvent(27 - 4, generateFilledInventory(name, Material.BARREL, itemStacks), inventoryClickEvent -> {
+            SWUtils.giveItemToPlayer(player, inventoryClickEvent.getCurrentItem());
+        });
+        inventory.open();
+    }
+
+    private ItemStack generateFilledInventory(String name, Material material, ItemStack[] itemStacks) {
+        ItemStack itemStack = new ItemStack(material);
+        BlockStateMeta meta = (BlockStateMeta) itemStack.getItemMeta();
+        BlockState state = meta.getBlockState();
+
+        if (state instanceof ShulkerBox box) {
+            box.getInventory().setContents(itemStacks);
+            box.update();
+            meta.setBlockState(box);
+        } else if (state instanceof Chest chest) {
+            chest.getInventory().setContents(itemStacks);
+            chest.update();
+            meta.setBlockState(chest);
+        } else if (state instanceof Barrel barrel) {
+            barrel.getInventory().setContents(itemStacks);
+            barrel.update();
+            meta.setBlockState(barrel);
+        }
+        meta.setDisplayName(name);
+        itemStack.setItemMeta(meta);
+        return itemStack;
+    }
 }

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/loader/Loader.java

@@ -73,7 +73,7 @@ public class Loader implements Listener {
         Bukkit.getPluginManager().registerEvents(this, BauSystem.getInstance());
 
         BauSystem.runTaskTimer(BauSystem.getInstance(), () -> {
-            if (stage != Stage.RUNNING) return;
+            if (stage != Stage.RUNNING && stage != Stage.SINGLE) return;
             if(!Permission.BUILD.hasPermission(p)) return;
             if (waitTime > 0) {
                 waitTime--;
@@ -149,13 +149,16 @@ public class Loader implements Listener {
     }
 
     public boolean setTicksBetweenShots(int delay) {
-        if (elements.size() == 0) return false;
+        if (elements.isEmpty()) return false;
         LoaderElement loaderElement = elements.get(elements.size() - 1);
         if (loaderElement instanceof LoaderWait) {
             ((LoaderWait) loaderElement).setDelay(delay);
-            return true;
+        } else {
+            LoaderWait loaderWait = new LoaderWait(delay);
+            elements.add(loaderWait);
+            pause();
         }
-        return false;
+        return true;
     }
 
     public void setTicksBetweenBlocks(int delay) {

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/rayvisualizer/RayVisualizerCommand.java

@@ -0,0 +1,198 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2020  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bausystem.features.rayvisualizer;
+
+import de.steamwar.bausystem.BauSystem;
+import de.steamwar.bausystem.Permission;
+import de.steamwar.bausystem.SWUtils;
+import de.steamwar.bausystem.configplayer.Config;
+import de.steamwar.bausystem.utils.BauMemberUpdateEvent;
+import de.steamwar.command.SWCommand;
+import de.steamwar.entity.CRay;
+import de.steamwar.entity.REntityServer;
+import de.steamwar.linkage.Linked;
+import de.steamwar.linkage.MinVersion;
+import org.bukkit.*;
+import org.bukkit.entity.Player;
+import org.bukkit.entity.TNTPrimed;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+import org.bukkit.util.RayTraceResult;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+@Linked
+@MinVersion(20)
+public class RayVisualizerCommand extends SWCommand implements Listener {
+
+    private class CRayData {
+        private CRay[] rays = new CRay[27 * 400];
+        private boolean[] used = new boolean[27 * 400];
+
+        public void reset() {
+            for (int i = 0; i < 27 * 400; i++) {
+                if (!used[i] && rays[i] != null) {
+                    rays[i].die();
+                    rays[i] = null;
+                }
+                used[i] = false;
+            }
+        }
+
+        private boolean locEquals(Location loc1, Location loc2) {
+            if ((long)(loc1.getX() * 1000) != (long)(loc2.getX() * 1000)) return false;
+            if ((long)(loc1.getY() * 1000) != (long)(loc2.getY() * 1000)) return false;
+            if ((long)(loc1.getZ() * 1000) != (long)(loc2.getZ() * 1000)) return false;
+            return true;
+        }
+
+        public CRay get(Location from, Location to) {
+            for (int i = 0; i < rays.length; i++) {
+                if (rays[i] != null && locEquals(from, rays[i].getFrom()) && locEquals(to, rays[i].getTo())) {
+                    used[i] = true;
+                    return rays[i];
+                }
+            }
+            for (int i = 0; i < rays.length; i++) {
+                if (rays[i] != null && locEquals(from, rays[i].getFrom()) && !used[i]) {
+                    used[i] = true;
+                    return rays[i];
+                }
+            }
+            for (int i = 0; i < rays.length; i++) {
+                if (used[i]) continue;
+                CRay ray = rays[i];
+                if (ray != null) {
+                    return ray;
+                }
+                ray = new CRay(server);
+                ray.setBlock(Material.LIME_CONCRETE.createBlockData());
+                ray.setWidth(1 / 32f);
+                rays[i] = ray;
+                used[i] = true;
+                return ray;
+            }
+            return null;
+        }
+    }
+
+    private CRayData rayData = new CRayData();
+
+    private final REntityServer server = new REntityServer();
+    private final World WORLD = Bukkit.getWorlds().get(0);
+
+    public RayVisualizerCommand() {
+        super("rayvisualizer");
+
+        Bukkit.getScheduler().runTaskTimer(BauSystem.getInstance(), () -> {
+            if (server.getPlayers().isEmpty()) return;
+            Map<Integer, List<TNTPrimed>> primedList = WORLD.getEntitiesByClass(TNTPrimed.class)
+                    .stream()
+                    .collect(Collectors.groupingBy(TNTPrimed::getFuseTicks));
+            rayData.reset();
+            if (primedList.isEmpty()) return;
+
+            List<Integer> fuseTicks = primedList.keySet().stream().sorted().collect(Collectors.toList());
+            List<TNTPrimed> current = new ArrayList<>();
+            for (int i = 0; i < fuseTicks.size(); i++) {
+                List<TNTPrimed> tnts = primedList.get(fuseTicks.get(i));
+                calculateRays(current, tnts);
+                current.addAll(tnts);
+            }
+        }, 1, 1);
+    }
+
+    private void calculateRays(List<TNTPrimed> fromTNTs, List<TNTPrimed> toTNTs) {
+        for (TNTPrimed from : fromTNTs) {
+            if (!from.isInWater()) continue;
+            for (TNTPrimed to : toTNTs) {
+                if (from == to) continue;
+                if (to.getLocation().distanceSquared(from.getLocation()) > 25) continue;
+
+                Location fromLoc = from.getLocation();
+                Location toLoc = to.getLocation().clone().add(-0.49, 0, -0.49);
+
+                final double minX = 0.5 * (1 - Math.floor(2 * 0.98 + 1) / (2 * 0.98 + 1));
+                final double minZ = 0.5 * (1 - Math.floor(2 * 0.98 + 1) / (2 * 0.98 + 1));
+                final double spacing = 0.98 / (2 * 0.98 + 1);
+
+                for (int dx = 0; dx < 3; dx++) {
+                    for (int dy = 0; dy < 3; dy++) {
+                        for (int dz = 0; dz < 3; dz++) {
+                            Location end = toLoc.clone().add(minX + dx * spacing, 0 + dy * spacing, minZ + dz * spacing);
+                            RayTraceResult result = fromLoc.getWorld().rayTraceBlocks(fromLoc, end.clone().subtract(fromLoc).toVector(), end.distance(fromLoc), FluidCollisionMode.NEVER, true);
+                            if (result != null && result.getHitBlock() != null) {
+                                continue;
+                            }
+                            CRay cRay = rayData.get(fromLoc, end);
+                            if (cRay == null) continue;
+                            cRay.setFrom(fromLoc);
+                            cRay.setTo(end);
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    @EventHandler
+    public void onPlayerJoin(PlayerJoinEvent event) {
+        if (!Permission.BUILD.hasPermission(event.getPlayer())) return;
+        boolean rayvisualizer = Config.getInstance().get(event.getPlayer()).getPlainValueOrDefault("rayvisualizer", false);
+        if (rayvisualizer) server.addPlayer(event.getPlayer());
+    }
+
+    @EventHandler
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        server.removePlayer(event.getPlayer());
+    }
+
+    @EventHandler
+    public void onBauMemberUpdate(BauMemberUpdateEvent event) {
+        Bukkit.getScheduler().runTaskLater(BauSystem.getInstance(), () -> {
+            for (Player player : Bukkit.getOnlinePlayers()) {
+                if (Permission.BUILD.hasPermission(player)) {
+                    boolean rayvisualizer = Config.getInstance().get(player).getPlainValueOrDefault("rayvisualizer", false);
+                    if (rayvisualizer) server.addPlayer(player);
+                } else {
+                    server.removePlayer(player);
+                }
+            }
+        }, 1);
+    }
+
+    @Register
+    public void toggle(@Validator Player player) {
+        boolean rayvisualizer = Config.getInstance().get(player).getPlainValueOrDefault("rayvisualizer", false);
+        Config.getInstance().get(player).put("rayvisualizer", !rayvisualizer);
+        if (!rayvisualizer) {
+            SWUtils.sendToActionbar(player, BauSystem.MESSAGE.parse("RAY_VISUALIZER_ENABLE", player));
+            server.addPlayer(player);
+        } else {
+            SWUtils.sendToActionbar(player, BauSystem.MESSAGE.parse("RAY_VISUALIZER_DISABLE", player));
+            server.removePlayer(player);
+        }
+    }
+}

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

@@ -34,8 +34,6 @@ import de.steamwar.linkage.Linked;
 import de.steamwar.linkage.LinkedInstance;
 import org.bukkit.entity.Player;
 
-import java.io.IOException;
-
 @Linked
 public class ColorCommand extends SWCommand {
 
@@ -47,7 +45,7 @@ public class ColorCommand extends SWCommand {
     }
 
     @Register(description = "REGION_COLOR_HELP_COLOR")
-    public void genericColor(Player p, ColorMode color) {
+    public void genericColor(@Validator Player p, ColorMode color) {
         genericColorSet(p, color, ColorizationType.LOCAL);
     }
 
@@ -78,7 +76,7 @@ public class ColorCommand extends SWCommand {
     }
 
     @Register
-    public void genericColorSet(Player p, ColorizationType colorizationType, ColorMode color) {
+    public void genericColorSet(@Validator Player p, ColorizationType colorizationType, ColorMode color) {
         genericColorSet(p, color, colorizationType);
     }
 

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

@@ -21,13 +21,9 @@ package de.steamwar.bausystem.features.util;
 
 import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.Permission;
-import de.steamwar.entity.REntityServer;
-import de.steamwar.entity.RFallingBlockEntity;
+import de.steamwar.entity.*;
 import de.steamwar.linkage.Linked;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import lombok.ToString;
-import net.md_5.bungee.api.ChatMessageType;
+import de.steamwar.linkage.MinVersion;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.Material;
@@ -37,101 +33,320 @@ import org.bukkit.block.PistonMoveReaction;
 import org.bukkit.block.TileState;
 import org.bukkit.block.data.BlockData;
 import org.bukkit.block.data.type.Piston;
+import org.bukkit.entity.Display;
+import org.bukkit.entity.Player;
+import org.bukkit.entity.TextDisplay;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
-import org.bukkit.event.block.Action;
+import org.bukkit.event.block.*;
 import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
 
 import java.util.*;
-import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.stream.Collectors;
 
 @Linked
+@MinVersion(20)
 public class PistonCalculator implements Listener {
 
+    private final Map<Player, Long> DEBOUNCE = new HashMap<>();
+
     @EventHandler
     public void onPlayerInteract(PlayerInteractEvent event) {
         if (!Permission.BUILD.hasPermission(event.getPlayer())) return;
         if (event.getAction() != Action.RIGHT_CLICK_BLOCK) return;
-        if (!event.hasItem() || event.getItem().getType() != Material.SLIME_BALL) return;
+        if (event.getItem() == null) {}
+        else if (event.getItem() != null && event.getItem().getType() == Material.SLIME_BALL) {}
+        else if (!event.getItem().getType().isBlock()) {
+            DEBOUNCE.put(event.getPlayer(), System.currentTimeMillis());
+            return;
+        }
+        else return;
         if (event.getClickedBlock() == null) return;
         Block clickedBlock = event.getClickedBlock();
         Material blockType = clickedBlock.getType();
         if (!(blockType == Material.PISTON || blockType == Material.STICKY_PISTON)) return;
-        Piston piston = (Piston) clickedBlock.getBlockData();
+        if (System.currentTimeMillis() - DEBOUNCE.getOrDefault(event.getPlayer(), 0L) <= 200) return;
+        DEBOUNCE.put(event.getPlayer(), System.currentTimeMillis());
 
-        if (blockType == Material.PISTON && piston.isExtended()) {
-            BauSystem.MESSAGE.sendPrefixless("PISTON_INFO", event.getPlayer(), ChatMessageType.ACTION_BAR, "§a", 0);
+        Location location = event.getClickedBlock().getLocation();
+        if (pistOrders.containsKey(location)) {
+            PistOrder pistOrder = pistOrders.get(location);
+            if (pistOrder.server.getPlayers().contains(event.getPlayer())) {
+                pistOrder.server.removePlayer(event.getPlayer());
+            } else {
+                pistOrder.server.addPlayer(event.getPlayer());
+            }
+            if (pistOrder.server.getPlayers().isEmpty()) {
+                pistOrders.remove(location);
+                pistOrder.server.close();
+            }
             return;
         }
 
-        boolean pulling = blockType == Material.STICKY_PISTON && (clickedBlock.getRelative(piston.getFacing()).getType() == Material.AIR || piston.isExtended());
+        PistOrder pistOrder = new PistOrder(clickedBlock);
+        pistOrder.calculate();
+        pistOrder.server.addPlayer(event.getPlayer());
+        pistOrders.put(location, pistOrder);
+    }
 
-        CalculationResult result = calc(clickedBlock, piston.getFacing(), (pulling ? piston.getFacing().getOppositeFace() : piston.getFacing()));
-        result.entityServer.addPlayer(event.getPlayer());
-        BauSystem.MESSAGE.sendPrefixless("PISTON_INFO", event.getPlayer(), ChatMessageType.ACTION_BAR, result.unmovable ? "§c" : (result.tooMany ? "§e" : "§a"), result.amount);
+    @EventHandler
+    public void onBlockPistonExtend(BlockPistonExtendEvent event) {
+        Bukkit.getScheduler().runTaskLater(BauSystem.getInstance(), () -> {
+            movePistOrders(event.getDirection(), event.getBlocks());
+            pistOrders.values().forEach(PistOrder::calculate);
+        }, 3);
+    }
+
+    @EventHandler
+    public void onBlockPistonRetract(BlockPistonRetractEvent event) {
+        Bukkit.getScheduler().runTaskLater(BauSystem.getInstance(), () -> {
+            movePistOrders(event.getDirection(), event.getBlocks());
+            pistOrders.values().forEach(PistOrder::calculate);
+        }, 3);
+    }
+
+    private void movePistOrders(BlockFace direction, List<Block> blocks) {
+        Set<PistOrder> orders = new HashSet<>();
+        blocks.forEach(block -> {
+            PistOrder pistOrder = pistOrders.get(block.getLocation());
+            if (pistOrder == null) return;
+            pistOrders.remove(block.getLocation());
+            pistOrder.piston = pistOrder.piston.getRelative(direction);
+            orders.add(pistOrder);
+        });
+        orders.forEach(pistOrder -> {
+            pistOrders.put(pistOrder.piston.getLocation(), pistOrder);
+        });
+    }
+
+    @EventHandler
+    public void onBlockPlace(BlockPlaceEvent event) {
+        Bukkit.getScheduler().runTaskLater(BauSystem.getInstance(), () -> {
+            pistOrders.values().forEach(PistOrder::calculate);
+        }, 1);
+    }
+
+    @EventHandler
+    public void onBlockBreak(BlockBreakEvent event) {
+        if (pistOrders.containsKey(event.getBlock().getLocation())) {
+            PistOrder pistOrder = pistOrders.remove(event.getBlock().getLocation());
+            pistOrder.server.close();
+        }
+        Bukkit.getScheduler().runTaskLater(BauSystem.getInstance(), () -> {
+            pistOrders.values().forEach(PistOrder::calculate);
+        }, 1);
+    }
+
+    @EventHandler
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        DEBOUNCE.remove(event.getPlayer());
+
+        Set<Location> toRemove = new HashSet<>();
+        pistOrders.forEach((location, pistOrder) -> {
+            pistOrder.server.removePlayer(event.getPlayer());
+            if (pistOrder.server.getPlayers().isEmpty()) {
+                toRemove.add(location);
+                pistOrder.server.close();
+            }
+        });
+        toRemove.forEach(pistOrders::remove);
     }
 
     private final BlockFace[] FACES = new BlockFace[]{BlockFace.UP, BlockFace.DOWN, BlockFace.NORTH, BlockFace.SOUTH, BlockFace.EAST, BlockFace.WEST};
 
-    private CalculationResult calc(Block origin, BlockFace facing, BlockFace direction) {
-        Set<Block> blockSet = new HashSet<>();
-        Set<Location> unmovable = new HashSet<>();
+    private final Map<Location, PistOrder> pistOrders = new HashMap<>();
 
-        Block calcOrigin = origin;
-        if (facing != direction) calcOrigin = origin.getRelative(facing, 3);
+    private final class PistOrder {
+        private Block piston;
+        private REntityServer server = new REntityServer();
 
-        List<Block> toCalc = new LinkedList<>();
-        calcDirection(origin, null, calcOrigin, facing != direction ? origin.getRelative(facing) : null, facing, direction, blockSet, toCalc, unmovable);
+        private boolean pulling = false;
+        private List<Location> movedBlocks = new ArrayList<>();
+        private List<Location> brokenBlocks = new ArrayList<>();
+        private Set<Location> immovableBlocks = new HashSet<>();
 
-        while (!toCalc.isEmpty()) {
-            Block current = toCalc.remove(0);
-            blockSet.add(current);
+        public PistOrder(Block piston) {
+            this.piston = piston;
+        }
 
-            Material type = current.getType();
-            if (type != Material.SLIME_BLOCK && type != Material.HONEY_BLOCK) continue;
-            Material oppositeType = type == Material.SLIME_BLOCK ? Material.HONEY_BLOCK : Material.SLIME_BLOCK;
+        public void calculate() {
+            movedBlocks.clear();
+            brokenBlocks.clear();
+            immovableBlocks.clear();
 
-            for (BlockFace face : FACES) {
-                Block block = current.getRelative(face);
-                if (block.getType().isAir()) continue;
-                if (!isPiston(block) && (block.getPistonMoveReaction() == PistonMoveReaction.BLOCK || block.getPistonMoveReaction() == PistonMoveReaction.IGNORE || block.getPistonMoveReaction() == PistonMoveReaction.PUSH_ONLY || block.getState() instanceof TileState || block.getPistonMoveReaction() == PistonMoveReaction.BREAK)) continue;
-                if (block.getType() != oppositeType) {
-                    if (!blockSet.contains(block)) toCalc.add(block);
-                    calcDirection(null, origin, block, null, facing, direction, blockSet, toCalc, unmovable);
+            if (piston.isEmpty()) {
+                Bukkit.getScheduler().runTaskLater(BauSystem.getInstance(), () -> {
+                    server.close();
+                    pistOrders.remove(piston.getLocation());
+                }, 0);
+                return;
+            }
+
+            BlockData blockData = piston.getBlockData();
+            if (!(blockData instanceof Piston)) return;
+            Piston pistonData = (Piston) blockData;
+            if (piston.getType() == Material.PISTON && pistonData.isExtended()) {
+                visualize();
+                return;
+            }
+
+            pulling = piston.getType() == Material.STICKY_PISTON && (piston.getRelative(pistonData.getFacing()).getType() == Material.AIR || pistonData.isExtended());
+
+            calculate(piston, pistonData.getFacing(), (pulling ? pistonData.getFacing().getOppositeFace() : pistonData.getFacing()));
+
+            Collections.reverse(movedBlocks);
+            Collections.reverse(brokenBlocks);
+
+            visualize();
+        }
+
+        private void calculate(Block origin, BlockFace facing, BlockFace direction) {
+            Block calcOrigin = origin;
+            if (facing != direction) calcOrigin = origin.getRelative(facing, 3);
+
+            List<Block> toCalc = new LinkedList<>();
+            calcDirection(origin, null, calcOrigin, facing != direction ? origin.getRelative(facing) : null, facing, direction, toCalc);
+
+            while (!toCalc.isEmpty()) {
+                Block current = toCalc.remove(0);
+                if (!movedBlocks.contains(current.getLocation())) {
+                    movedBlocks.add(current.getLocation());
+                }
+
+                Material type = current.getType();
+                if (type != Material.SLIME_BLOCK && type != Material.HONEY_BLOCK) continue;
+                Material oppositeType = type == Material.SLIME_BLOCK ? Material.HONEY_BLOCK : Material.SLIME_BLOCK;
+
+                for (BlockFace face : FACES) {
+                    Block block = current.getRelative(face);
+                    if (block.getType().isAir()) continue;
+                    if (isImmovable(block) || block.getPistonMoveReaction() == PistonMoveReaction.BREAK) continue;
+                    if (block.getType() != oppositeType) {
+                        if (!movedBlocks.contains(block.getLocation())) toCalc.add(block);
+                        calcDirection(null, origin, block, null, facing, direction, toCalc);
+                    }
                 }
             }
+
+            movedBlocks.remove(origin.getLocation());
+            if (facing != direction) movedBlocks.remove(origin.getRelative(facing, 1).getLocation());
+            if (pulling) immovableBlocks.remove(origin.getRelative(facing).getLocation());
         }
 
-        blockSet.remove(origin);
-        if (facing != direction) blockSet.remove(origin.getRelative(facing, 1));
-
-        REntityServer entityServer = new REntityServer();
-        for (Location loc : unmovable) {
-            RFallingBlockEntity rFallingBlockEntity = new RFallingBlockEntity(entityServer, loc.clone().add(0.5, 0, 0.5), Material.RED_STAINED_GLASS);
-            rFallingBlockEntity.setGlowing(true);
-            rFallingBlockEntity.setNoGravity(true);
-            rFallingBlockEntity.setInvisible(true);
+        private void calcDirection(Block origin, Block blockOrigin, Block calcOrigin, Block ignore, BlockFace facing, BlockFace direction, List<Block> toCalc) {
+            for (int i = 1; i < 24; i++) {
+                Block block = calcOrigin.getRelative(direction, i);
+                if (block.equals(ignore)) return;
+                if (block.getPistonMoveReaction() == PistonMoveReaction.BREAK) {
+                    if (!brokenBlocks.contains(block.getLocation())) {
+                        brokenBlocks.add(block.getLocation());
+                    }
+                    return;
+                }
+                if (isImmovable(block)) {
+                    immovableBlocks.add(block.getLocation());
+                    return;
+                }
+                if (block.getType().isAir()) return;
+                if (facing == direction && block.equals(blockOrigin)) {
+                    immovableBlocks.add(block.getLocation());
+                    return;
+                }
+                if (facing != direction && (block.equals(origin) || block.getRelative(facing.getOppositeFace()).equals(origin))) return;
+                if (!movedBlocks.contains(block.getLocation())) toCalc.add(block);
+            }
+        }
+
+        private void visualize() {
+            server.getEntities().forEach(REntity::die);
+
+            for (int i = 0; i < movedBlocks.size(); i++) {
+                Location location = movedBlocks.get(i);
+                int order = i + 1;
+
+                CCubedTextDisplay display = new CCubedTextDisplay(server, location);
+                display.setText("§e" + order);
+                display.setBackgroundColor(0);
+                display.setShadowed(false);
+
+                Set<BlockFace> toHide = Arrays.stream(FACES).filter(blockFace -> {
+                    return movedBlocks.contains(location.clone().add(blockFace.getModX(), blockFace.getModY(), blockFace.getModZ()));
+                }).collect(Collectors.toSet());
+                display.hide(toHide);
+            }
+
+            for (int i = 0; i < brokenBlocks.size(); i++) {
+                Location location = brokenBlocks.get(i);
+                int order = i + 1;
+
+                RTextDisplay textDisplay = new RTextDisplay(server, location.clone().add(0.5, 0.4, 0.5));
+                textDisplay.setText("§c" + order);
+                textDisplay.setBillboard(Display.Billboard.CENTER);
+                textDisplay.setAlignment(TextDisplay.TextAlignment.CENTER);
+                textDisplay.setSeeThrough(true);
+                textDisplay.setBackgroundColor(0);
+                textDisplay.setShadowed(false);
+                textDisplay.setBrightness(new Display.Brightness(15, 15));
+            }
+
+            for (Location location : immovableBlocks) {
+                CWireframe wireframe = new CWireframe(server);
+                wireframe.setPos1(location);
+                wireframe.setPos2(location);
+                wireframe.setWidth(1 / 32f);
+                wireframe.setBlock(Material.RED_CONCRETE.createBlockData());
+            }
+
+            CWireframe wireframe = new CWireframe(server);
+            wireframe.setPos1(piston.getLocation());
+            wireframe.setPos2(piston.getLocation());
+            if (!immovableBlocks.isEmpty()) {
+                wireframe.setBlock(Material.RED_CONCRETE.createBlockData());
+            } else if (movedBlocks.size() > 12) {
+                wireframe.setBlock(Material.YELLOW_CONCRETE.createBlockData());
+            } else {
+                wireframe.setBlock(Material.LIME_CONCRETE.createBlockData());
+            }
+            wireframe.setWidth(1 / 32f);
+
+            RTextDisplay textDisplay = new RTextDisplay(server, piston.getLocation().clone().add(0.5, 0.3, 0.5));
+            StringBuilder text = new StringBuilder();
+            if (pulling) {
+                text.append("§ePull\n");
+            } else {
+                text.append("§ePush\n");
+            }
+            text.append("§f").append(movedBlocks.size()).append(" §eBlocks");
+            textDisplay.setText(text.toString());
+            textDisplay.setBillboard(Display.Billboard.CENTER);
+            textDisplay.setAlignment(TextDisplay.TextAlignment.CENTER);
+            textDisplay.setSeeThrough(true);
+            textDisplay.setBackgroundColor(0);
+            textDisplay.setShadowed(false);
+            textDisplay.setBrightness(new Display.Brightness(15, 15));
         }
-        Bukkit.getScheduler().runTaskLater(BauSystem.getInstance(), entityServer::close, 20);
-        return new CalculationResult(blockSet.size(), blockSet.size() > 12, !unmovable.isEmpty(), entityServer);
     }
 
-    private void calcDirection(Block origin, Block blockOrigin, Block calcOrigin, Block ignore, BlockFace facing, BlockFace direction, Set<Block> blockSet, List<Block> toCalc, Set<Location> unmovable) {
-        for (int i = 1; i < 24; i++) {
-            Block block = calcOrigin.getRelative(direction, i);
-            if (block.equals(ignore)) return;
-            if (block.getPistonMoveReaction() == PistonMoveReaction.BREAK) return;
-            if (!isPiston(block) && (block.getPistonMoveReaction() == PistonMoveReaction.BLOCK || block.getPistonMoveReaction() == PistonMoveReaction.IGNORE || block.getState() instanceof TileState)) {
-                unmovable.add(block.getLocation());
-                return;
-            }
-            if (block.getType().isAir()) return;
-            if (facing == direction && block.equals(blockOrigin)) {
-                unmovable.add(block.getLocation());
-                return;
-            }
-            if (facing != direction && (block.equals(origin) || block.getRelative(facing.getOppositeFace()).equals(origin))) return;
-            if (!blockSet.contains(block)) toCalc.add(block);
+    private boolean isImmovable(Block block) {
+        if (block.isEmpty() || block.isLiquid()) {
+            return false;
+        }
+        BlockData blockData = block.getBlockData();
+        if (blockData instanceof Piston) {
+            return ((Piston) blockData).isExtended();
+        }
+        if (block.getState() instanceof TileState) {
+            return true;
+        }
+        PistonMoveReaction reaction = block.getPistonMoveReaction();
+        if (reaction == PistonMoveReaction.IGNORE) return true;
+        if (reaction == PistonMoveReaction.BLOCK) return true;
+        switch (block.getType()) {
+            case OBSIDIAN:
+                return true;
+            default:
+                return false;
         }
     }
 
@@ -142,13 +357,4 @@ public class PistonCalculator implements Listener {
         }
         return false;
     }
-
-    @AllArgsConstructor
-    @Getter
-    private static class CalculationResult {
-        private int amount;
-        private boolean tooMany;
-        private boolean unmovable;
-        private REntityServer entityServer;
-    }
 }

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

@@ -22,9 +22,11 @@ package de.steamwar.bausystem.features.util;
 import de.steamwar.bausystem.BauSystem;
 import de.steamwar.command.SWCommand;
 import de.steamwar.linkage.Linked;
+import de.steamwar.linkage.MinVersion;
 import org.bukkit.entity.Player;
 
 @Linked
+@MinVersion(20)
 public class PistonCalculatorCommand extends SWCommand {
 
     public PistonCalculatorCommand() {

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/worldedit/SelectAdjacent.java

@@ -0,0 +1,180 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2020  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bausystem.features.worldedit;
+
+import de.steamwar.bausystem.BauSystem;
+import de.steamwar.bausystem.region.Point;
+import de.steamwar.bausystem.utils.FlatteningWrapper;
+import de.steamwar.core.WorldEditRenderer;
+import de.steamwar.linkage.Linked;
+import de.steamwar.linkage.MinVersion;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.Action;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+import org.bukkit.scheduler.BukkitTask;
+import org.bukkit.util.Vector;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Predicate;
+
+@Linked
+@MinVersion(20)
+public class SelectAdjacent implements Listener {
+
+    private Vector[] FACES = {
+            new Vector(1, 0, 0),
+            new Vector(-1, 0, 0),
+            new Vector(0, 1, 0),
+            new Vector(0, -1, 0),
+            new Vector(0, 0, 1),
+            new Vector(0, 0, -1),
+
+            new Vector(1, 1, 0),
+            new Vector(1, -1, 0),
+            new Vector(1, 0, 1),
+            new Vector(1, 0, -1),
+            new Vector(-1, 1, 0),
+            new Vector(-1, -1, 0),
+            new Vector(-1, 0, 1),
+            new Vector(-1, 0, -1),
+            new Vector(0, 1, 1),
+            new Vector(0, 1, -1),
+            new Vector(0, -1, 1),
+            new Vector(0, -1, -1),
+    };
+
+    private Map<Player, Selector> selectors = new HashMap<>();
+
+    @EventHandler
+    public void onPlayerInteract(PlayerInteractEvent event) {
+        if (!event.hasItem()) return;
+        if (event.getItem().getType() != Material.WOODEN_AXE) return;
+        if (!event.getPlayer().isSneaking()) return;
+        if (event.getAction() != Action.LEFT_CLICK_BLOCK) return;
+        Selector selector = selectors.get(event.getPlayer());
+        if (selector != null) selector.cancel();
+        Material material = event.getPlayer().getInventory().getItemInOffHand().getType();
+        if (material.isAir()) {
+            selector = new Selector(event.getClickedBlock(), event.getPlayer(), __ -> true);
+        } else {
+            selector = new Selector(event.getClickedBlock(), event.getPlayer(), type -> type == material);
+        }
+        selectors.put(event.getPlayer(), selector);
+    }
+
+    @EventHandler
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        Selector selector = selectors.remove(event.getPlayer());
+        if (selector != null) selector.cancel();
+    }
+
+    private class Selector {
+
+        private static final int MAX_BLOCKS = 500_000;
+
+        private int minX;
+        private int minY;
+        private int minZ;
+        private int maxX;
+        private int maxY;
+        private int maxZ;
+
+        private BukkitTask bukkitTask;
+        private Predicate<Material> predicate;
+        private Set<Location> seen = new HashSet<>();
+        private Set<Location> toCalc = new HashSet<>();
+
+        public Selector(Block block, Player player, Predicate<Material> predicate) {
+            this.predicate = predicate;
+            toCalc.add(block.getLocation());
+            minX = block.getX();
+            minY = block.getY();
+            minZ = block.getZ();
+            maxX = block.getX();
+            maxY = block.getY();
+            maxZ = block.getZ();
+
+            bukkitTask = Bukkit.getScheduler().runTaskTimer(BauSystem.getInstance(), () -> {
+                run();
+
+                long volume = (long)(maxX - minX + 1) * (long)(maxY - minY + 1) * (long)(maxZ - minZ + 1);
+                player.sendTitle("", "§e" + volume + " §7Blocks", 0, 5, 0);
+
+                Point minPoint = new Point(minX, minY, minZ);
+                Point maxPoint = new Point(maxX, maxY, maxZ);
+
+                FlatteningWrapper.impl.setSelection(player, minPoint, maxPoint);
+                WorldEditRenderer.renderPlayer(player);
+
+                // boolean finished = toCalc.stream().allMatch(location -> {
+                //     return location.getBlockX() >= minX && location.getBlockY() >= minY && location.getBlockZ() >= minZ &&
+                //             location.getBlockX() <= maxX && location.getBlockY() <= maxY && location.getBlockZ() <= maxZ;
+                // });
+
+                if (toCalc.isEmpty() || seen.size() > MAX_BLOCKS) {
+                    bukkitTask.cancel();
+                    player.sendTitle("§aDone", "§e" + volume + " §7Blocks", 0, 20, 5);
+                }
+            }, 1, 1);
+        }
+
+        private void cancel() {
+            bukkitTask.cancel();
+        }
+
+        private void run() {
+            Set<Location> current = toCalc;
+            toCalc = new HashSet<>();
+
+            for (Location location : current) {
+                Block block = location.getBlock();
+                if (block.isEmpty() || block.isLiquid()) continue;
+                if (!predicate.test(block.getType())) continue;
+                seen.add(location);
+
+                minX = Math.min(minX, location.getBlockX());
+                maxX = Math.max(maxX, location.getBlockX());
+                minY = Math.min(minY, location.getBlockY());
+                maxY = Math.max(maxY, location.getBlockY());
+                minZ = Math.min(minZ, location.getBlockZ());
+                maxZ = Math.max(maxZ, location.getBlockZ());
+
+                for (Vector face : FACES) {
+                    Block next = block.getRelative(face.getBlockX(), face.getBlockY(), face.getBlockZ());
+                    if (next.isEmpty() || next.isLiquid()) continue;
+                    if (!predicate.test(next.getType())) continue;
+                    Location loc = next.getLocation();
+                    if (seen.contains(loc)) continue;
+                    toCalc.add(loc);
+                }
+            }
+        }
+    }
+}

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

@@ -145,6 +145,13 @@ public class PasteBuilder {
     public PasteBuilder removeWater(boolean removeWater) {
         if (!removeWater) return this;
         BaseBlock water = Objects.requireNonNull(BlockTypes.get("water")).getDefaultState().toBaseBlock();
+        BlockType bubble_column_type = BlockTypes.get("bubble_column");
+        BaseBlock bubble_column;
+        if (bubble_column_type == null) {
+            bubble_column = null;
+        } else {
+            bubble_column = bubble_column_type.getDefaultState().toBaseBlock();
+        }
         BaseBlock air = Objects.requireNonNull(BlockTypes.get("air")).getDefaultState().toBaseBlock();
         WaterloggedRemover waterloggedRemover = new WaterloggedRemover(getClipboard());
 
@@ -154,6 +161,10 @@ public class PasteBuilder {
                 clipboard.setBlock(blockVector3, air);
                 return;
             }
+            if (bubble_column != null && baseBlock.equals(bubble_column)) {
+                clipboard.setBlock(blockVector3, air);
+                return;
+            }
             String blockName = clipboard.getFullBlock(blockVector3).getBlockType().getName();
             if (blockName.equals("Water")) {
                 clipboard.setBlock(blockVector3, air);

CommonCore/Network/src/de/steamwar/network/packets/client/AnvilAnswerPacket.java

@@ -0,0 +1,41 @@
+/*
+ *   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.network.packets.client;
+
+import de.steamwar.network.packets.NetworkPacket;
+import lombok.*;
+
+@EqualsAndHashCode(callSuper = true)
+@Getter
+@AllArgsConstructor
+@NoArgsConstructor
+@ToString
+@Builder(toBuilder = true)
+public class AnvilAnswerPacket extends NetworkPacket {
+    private int playerId;
+    private Action action;
+    private String text;
+
+    public enum Action {
+        CLOSE,
+        ANSWER,
+        LEFT_CLICK
+    }
+}

CommonCore/Network/src/de/steamwar/network/packets/server/AnvilInventoryPacket.java

@@ -0,0 +1,36 @@
+/*
+ *   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.network.packets.server;
+
+import de.steamwar.network.packets.NetworkPacket;
+import lombok.*;
+
+@EqualsAndHashCode(callSuper = true)
+@Getter
+@AllArgsConstructor
+@NoArgsConstructor
+@ToString
+public class AnvilInventoryPacket extends NetworkPacket {
+    private static final long serialVersionUID = -6004390311854048209L;
+    private int playerId;
+    private String title;
+    private String defaultText;
+    private String material;
+}

FightSystem/FightSystem_10/src/de/steamwar/fightsystem/utils/CraftbukkitWrapper10.java

@@ -55,4 +55,7 @@ public class CraftbukkitWrapper10 implements CraftbukkitWrapper {
     public Stream<?> entityIterator() {
         return ((CraftWorld) Config.world).getHandle().entityList.stream();
     }
+
+    @Override
+    public void setupGamerule() { }
 }

FightSystem/FightSystem_12/src/de/steamwar/fightsystem/utils/CraftbukkitWrapper12.java

@@ -55,4 +55,7 @@ public class CraftbukkitWrapper12 implements CraftbukkitWrapper {
     public Stream<?> entityIterator() {
         return ((CraftWorld) Config.world).getHandle().entityList.stream();
     }
+
+    @Override
+    public void setupGamerule() { }
 }

FightSystem/FightSystem_14/src/de/steamwar/fightsystem/utils/CraftbukkitWrapper14.java

@@ -56,4 +56,7 @@ public class CraftbukkitWrapper14 implements CraftbukkitWrapper {
     public Stream<?> entityIterator() {
         return ((CraftWorld) Config.world).getHandle().entitiesById.values().stream();
     }
+
+    @Override
+    public void setupGamerule() { }
 }

FightSystem/FightSystem_15/src/de/steamwar/fightsystem/utils/CraftbukkitWrapper15.java

@@ -56,4 +56,7 @@ public class CraftbukkitWrapper15 implements CraftbukkitWrapper {
     public Stream<?> entityIterator() {
         return ((CraftWorld) Config.world).getHandle().entitiesById.values().stream();
     }
+
+    @Override
+    public void setupGamerule() { }
 }

FightSystem/FightSystem_18/src/de/steamwar/fightsystem/utils/CraftbukkitWrapper18.java

@@ -62,4 +62,7 @@ public class CraftbukkitWrapper18 implements CraftbukkitWrapper {
     public Stream<?> entityIterator() {
         return StreamSupport.stream(((Iterable<?>) getIterable.invoke(getWorldEntities.invoke(getWorld.invoke(Config.world)))).spliterator(), false);
     }
+
+    @Override
+    public void setupGamerule() { }
 }

FightSystem/FightSystem_21/build.gradle.kts

@@ -24,6 +24,7 @@ plugins {
 dependencies {
     compileOnly(project(":FightSystem:FightSystem_Core", "default"))
     compileOnly(project(":FightSystem:FightSystem_18", "default"))
+    compileOnly(project(":SpigotCore", "default"))
 
     compileOnly(libs.paperapi21) {
         attributes {
@@ -40,4 +41,5 @@ dependencies {
     }
 
     compileOnly(libs.fastutil)
+    compileOnly(libs.authlib)
 }

FightSystem/FightSystem_21/src/de/steamwar/fightsystem/utils/BlockIdWrapper21.java

@@ -0,0 +1,77 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.fightsystem.utils;
+
+import com.comphenix.tinyprotocol.TinyProtocol;
+import com.mojang.authlib.GameProfile;
+import de.steamwar.core.ProtocolWrapper;
+import de.steamwar.fightsystem.FightSystem;
+import net.minecraft.core.BlockPos;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.level.block.state.BlockState;
+import org.bukkit.GameMode;
+import org.bukkit.Material;
+import org.bukkit.World;
+import org.bukkit.block.Block;
+import org.bukkit.craftbukkit.CraftWorld;
+import org.bukkit.craftbukkit.block.CraftBlockState;
+import org.bukkit.craftbukkit.util.CraftMagicNumbers;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+
+public class BlockIdWrapper21 implements BlockIdWrapper {
+
+    @Override
+    public Material idToMaterial(int blockState) {
+        return CraftMagicNumbers.getMaterial(net.minecraft.world.level.block.Block.stateById(blockState)).getItemType();
+    }
+
+    @Override
+    public int blockToId(Block block) {
+        return net.minecraft.world.level.block.Block.getId(((CraftBlockState) block.getState()).getHandle());
+    }
+
+    @Override
+    public void setBlock(World world, int x, int y, int z, int blockState) {
+        BlockState blockData = net.minecraft.world.level.block.Block.stateById(blockState);
+        ServerLevel level = ((CraftWorld) world).getHandle();
+        BlockPos pos = new BlockPos(x, y, z);
+
+        level.removeBlockEntity(pos);
+        level.setBlock(pos, blockData, blockState);
+        level.getChunkSource().blockChanged(pos);
+    }
+
+    @Override
+    public void trackEntity(Player player, Entity entity) {
+        if(entity instanceof Player)
+            TinyProtocol.instance.sendPacket(player, ProtocolWrapper.impl.playerInfoPacketConstructor(ProtocolWrapper.PlayerInfoAction.REMOVE, new GameProfile(entity.getUniqueId(), entity.getName()), GameMode.CREATIVE));
+
+        player.showEntity(FightSystem.getPlugin(), entity);
+    }
+
+    @Override
+    public void untrackEntity(Player player, Entity entity) {
+        player.hideEntity(FightSystem.getPlugin(), entity);
+
+        if(entity instanceof Player)
+            TinyProtocol.instance.sendPacket(player, ProtocolWrapper.impl.playerInfoPacketConstructor(ProtocolWrapper.PlayerInfoAction.ADD, new GameProfile(entity.getUniqueId(), entity.getName()), GameMode.CREATIVE));
+    }
+}

FightSystem/FightSystem_21/src/de/steamwar/fightsystem/utils/CraftbukkitWrapper21.java

@@ -19,12 +19,43 @@
 
 package de.steamwar.fightsystem.utils;
 
+import de.steamwar.fightsystem.Config;
+import net.minecraft.core.BlockPos;
+import net.minecraft.world.level.chunk.LevelChunk;
+import net.minecraft.world.level.chunk.LevelChunkSection;
+import org.bukkit.GameRule;
+import org.bukkit.World;
+import org.bukkit.craftbukkit.CraftWorld;
 import org.bukkit.entity.Entity;
 
+import java.util.HashSet;
+import java.util.Set;
+
 public class CraftbukkitWrapper21 extends CraftbukkitWrapper18 {
 
     @Override
     public float headRotation(Entity e) {
         return getEntity(e).getYHeadRot();
     }
+
+    @Override
+    public void setupGamerule() {
+        Config.world.setGameRule(GameRule.LOCATOR_BAR, false);
+    }
+
+    private LevelChunk getChunk(World world, int x, int z) {
+        return ((CraftWorld) world).getHandle().getChunk(x, z);
+    }
+
+    @Override
+    public void resetChunk(World world, World backup, int x, int z) {
+        LevelChunk worldChunk = getChunk(world, x, z);
+        LevelChunk backupChunk = getChunk(backup, x, z);
+        LevelChunkSection[] sections = worldChunk.getSections();
+        System.arraycopy(backupChunk.getSections(), 0, sections, 0, sections.length);
+        Set<BlockPos> blocks = new HashSet<>(worldChunk.blockEntities.keySet());
+        blocks.stream().filter(key -> !backupChunk.blockEntities.containsKey(key)).forEach(worldChunk::removeBlockEntity);
+        worldChunk.heightmaps.clear();
+        worldChunk.heightmaps.putAll(backupChunk.heightmaps);
+    }
 }

FightSystem/FightSystem_21/src/de/steamwar/fightsystem/utils/ReflectionWrapper21.java

@@ -0,0 +1,36 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.fightsystem.utils;
+
+import io.papermc.paper.datacomponent.DataComponentTypes;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+
+public class ReflectionWrapper21 implements ReflectionWrapper {
+    @Override
+    public Object explosionHider(Player player, Object packet, PacketHiderFunction packetHiderFunction) {
+        return packet;
+    }
+
+    @Override
+    public boolean hasItems(ItemStack stack) {
+        return stack.getDataTypes().stream().anyMatch(dataComponentType -> dataComponentType != DataComponentTypes.ENCHANTMENTS || dataComponentType != DataComponentTypes.DAMAGE);
+    }
+}

FightSystem/FightSystem_8/src/de/steamwar/fightsystem/utils/CraftbukkitWrapper8.java

@@ -52,4 +52,7 @@ public class CraftbukkitWrapper8 implements CraftbukkitWrapper {
     public Stream<?> entityIterator() {
         return ((CraftWorld) Config.world).getHandle().entityList.stream();
     }
+
+    @Override
+    public void setupGamerule() { }
 }

FightSystem/FightSystem_8/src/de/steamwar/fightsystem/utils/ReflectionWrapper8.java

@@ -0,0 +1,59 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.fightsystem.utils;
+
+import de.steamwar.Reflection;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.function.Function;
+
+public class ReflectionWrapper8 implements ReflectionWrapper {
+
+    private static final Class<?> packetPlayOutExplosion = Reflection.getClass("net.minecraft.network.protocol.game.ClientboundExplodePacket");
+    private static final Reflection.Field<List> explosionBlocks = Reflection.getField(packetPlayOutExplosion, List.class, 0);
+    private static final Function<Object, Location> explosionLocation = HullHider.posPacketToLocation(packetPlayOutExplosion, double.class, 1.0);
+
+    @Override
+    public Object explosionHider(Player player, Object packet, PacketHiderFunction packetHiderFunction) {
+        if(explosionBlocks.get(packet).isEmpty())
+            return packetHiderFunction.hide(player, packet, explosionLocation.apply(packet));
+
+        return packet;
+    }
+
+
+    private static final Class<?> itemStack = Reflection.getClass("net.minecraft.world.item.ItemStack");
+    private static final Reflection.Method asNMSCopy = Reflection.getTypedMethod(Reflection.getClass("org.bukkit.craftbukkit.inventory.CraftItemStack"), "asNMSCopy", itemStack, ItemStack.class);
+    private static final Class<?> nbtTagCompound = Reflection.getClass("net.minecraft.nbt.CompoundTag");
+    private static final Reflection.Method getTag = Reflection.getTypedMethod(itemStack, null, nbtTagCompound);
+    private static final Reflection.Method getKeys = Reflection.getTypedMethod(nbtTagCompound, null, Set.class);
+    @Override
+    public boolean hasItems(ItemStack stack) {
+        Set<String> keys = new HashSet<>((Set<String>) getKeys.invoke(getTag.invoke(asNMSCopy.invoke(null, stack))));
+        keys.remove("Enchantments");
+        keys.remove("Damage");
+        return !keys.isEmpty();
+    }
+}

FightSystem/FightSystem_9/src/de/steamwar/fightsystem/utils/CraftbukkitWrapper9.java

@@ -55,4 +55,7 @@ public class CraftbukkitWrapper9 implements CraftbukkitWrapper {
     public Stream<?> entityIterator() {
         return ((CraftWorld) Config.world).getHandle().entityList.stream();
     }
+
+    @Override
+    public void setupGamerule() { }
 }

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

@@ -188,6 +188,8 @@ public class FightSystem extends JavaPlugin {
         }else if(Config.mode == ArenaMode.PREPARE) {
             Fight.getUnrotated().setSchem(SchematicNode.getSchematicNode(Config.PrepareSchemID));
         }
+
+        CraftbukkitWrapper.impl.setupGamerule();
     }
 
     @Override

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

@@ -26,6 +26,7 @@ import de.steamwar.fightsystem.commands.Commands;
 import de.steamwar.fightsystem.commands.GUI;
 import de.steamwar.fightsystem.listener.PersonalKitCreator;
 import de.steamwar.fightsystem.utils.FlatteningWrapper;
+import de.steamwar.fightsystem.utils.ReflectionWrapper;
 import de.steamwar.inventory.SWInventory;
 import de.steamwar.inventory.SWItem;
 import de.steamwar.sql.PersonalKit;
@@ -214,17 +215,8 @@ public class Kit {
         assert normal != null;
         return !normal.isEnchantmentInKit(stack) && !stack.getEnchantments().isEmpty();
     }
-
-    private static final Class<?> itemStack = Reflection.getClass("net.minecraft.world.item.ItemStack");
-    private static final Reflection.Method asNMSCopy = Reflection.getTypedMethod(Reflection.getClass("org.bukkit.craftbukkit.inventory.CraftItemStack"), "asNMSCopy", itemStack, ItemStack.class);
-    private static final Class<?> nbtTagCompound = Reflection.getClass("net.minecraft.nbt.CompoundTag");
-    private static final Reflection.Method getTag = Reflection.getTypedMethod(itemStack, null, nbtTagCompound);
-    private static final Reflection.Method getKeys = Reflection.getTypedMethod(nbtTagCompound, null, Set.class);
     public static boolean hasItems(ItemStack stack) {
-        Set<String> keys = new HashSet<>((Set<String>) getKeys.invoke(getTag.invoke(asNMSCopy.invoke(null, stack))));
-        keys.remove("Enchantments");
-        keys.remove("Damage");
-        return !keys.isEmpty();
+        return ReflectionWrapper.impl.hasItems(stack);
     }
 
     private boolean isEnchantmentInKit(ItemStack stack){

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

@@ -33,4 +33,6 @@ public interface CraftbukkitWrapper {
     float headRotation(Entity e);
 
     Stream<?> entityIterator();
+
+    void setupGamerule();
 }

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

@@ -62,6 +62,7 @@ public class HullHider implements Listener {
     private final Hull[] hulls;
     private final Map<Class<?>, BiFunction<Player, Object, Object>> packetHiders = new HashMap<>();
 
+    private static final Class<?> packetPlayOutExplosion = Reflection.getClass("net.minecraft.network.protocol.game.ClientboundExplodePacket");
     public HullHider() {
         if(!TechHiderWrapper.ENABLED) {
             hulls = new Hull[0];
@@ -208,14 +209,8 @@ public class HullHider implements Listener {
         return packetHider(player, packet, new Location(Config.world, TechHider.blockPositionX.get(baseBlock), blockPositionY.get(baseBlock), TechHider.blockPositionZ.get(baseBlock)));
     }
 
-    private static final Class<?> packetPlayOutExplosion = Reflection.getClass("net.minecraft.network.protocol.game.ClientboundExplodePacket");
-    private static final Reflection.Field<List> explosionBlocks = Reflection.getField(packetPlayOutExplosion, List.class, 0);
-    private static final Function<Object, Location> explosionLocation = posPacketToLocation(packetPlayOutExplosion, double.class, 1.0);
     private Object explosionHider(Player player, Object packet) {
-        if(explosionBlocks.get(packet).isEmpty())
-            return packetHider(player, packet, explosionLocation.apply(packet));
-
-        return packet;
+        return ReflectionWrapper.impl.explosionHider(player, packet, this::packetHider);
     }
 
     private void posHiderGenerator(String typeName, Class<? extends Number> posType, double factor) {
@@ -224,7 +219,7 @@ public class HullHider implements Listener {
         packetHiders.put(type, (player, packet) -> packetHider(player, packet, location.apply(packet)));
     }
 
-    private static Function<Object, Location> posPacketToLocation(Class<?> type, Class<? extends Number> posType, double factor) {
+    public static Function<Object, Location> posPacketToLocation(Class<?> type, Class<? extends Number> posType, double factor) {
         Reflection.Field<? extends Number> x = Reflection.getField(type, posType, 0);
         Reflection.Field<? extends Number> y = Reflection.getField(type, posType, 1);
         Reflection.Field<? extends Number> z = Reflection.getField(type, posType, 2);

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

@@ -0,0 +1,37 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.fightsystem.utils;
+
+import de.steamwar.core.VersionDependent;
+import de.steamwar.fightsystem.FightSystem;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+
+public interface ReflectionWrapper {
+    ReflectionWrapper impl = VersionDependent.getVersionImpl(FightSystem.getPlugin());
+
+    Object explosionHider(Player player, Object packet, PacketHiderFunction packetHiderFunction);
+    boolean hasItems(ItemStack stack);
+
+    public interface PacketHiderFunction {
+        Object hide(Player player, Object packet, Location location);
+    }
+}

FightSystem/FightSystem_Core/src/plugin.yml

@@ -8,7 +8,7 @@ softdepend:
   - SpigotCore
 depend:
   - WorldEdit
-api-version: "1.13"
+api-version: "1.21.6"
 
 commands:
   ak:

FightSystem/build.gradle.kts

@@ -49,3 +49,24 @@ tasks.register<FightServer>("WarGear20") {
     worldName = "arenas/Pentraki"
     config = "WarGear20.yml"
 }
+
+tasks.register<FightServer>("WarGear21") {
+    group = "run"
+    description = "Run a WarGear 1.21 Fight Server"
+    dependsOn(":SpigotCore:shadowJar")
+    dependsOn(":FightSystem:shadowJar")
+    template = "WarGear21"
+    worldName = "arenas/Pentraki"
+    config = "WarGear20.yml"
+    jar = "/jars/paper-1.21.6.jar"
+}
+
+tasks.register<FightServer>("SpaceCraftDev20") {
+    group = "run"
+    description = "Run a SpaceCraftDev 1.20 Fight Server"
+    dependsOn(":SpigotCore:shadowJar")
+    dependsOn(":FightSystem:shadowJar")
+    template = "SpaceCraft20"
+    worldName = "arenas/AS_Horizon"
+    config = "SpaceCraftDev20.yml"
+}

SchematicSystem/SchematicSystem_Core/src/de/steamwar/schematicsystem/commands/schematiccommand/parts/SavePart.java

@@ -27,7 +27,6 @@ import de.steamwar.providers.BauServerInfo;
 import de.steamwar.schematicsystem.SchematicSystem;
 import de.steamwar.schematicsystem.commands.schematiccommand.SchematicCommand;
 import de.steamwar.sql.*;
-import net.md_5.bungee.api.chat.ClickEvent;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
 import org.bukkit.entity.Player;
@@ -44,7 +43,6 @@ public class SavePart extends SWCommand {
     }
 
     @Register("save")
-    @Register("s")
     public void saveSchem(Player player) {
         SchematicSelector selector = new SchematicSelector(player, SchematicSelector.selectSchematicNode(), schematicNode -> {
             if(schematicNode == null || schematicNode.isDir()) {
@@ -61,7 +59,6 @@ public class SavePart extends SWCommand {
     }
 
     @Register("save")
-    @Register("s")
     public void saveSchem(Player player, @AbstractSWCommand.Mapper("stringMapper") String name) {
         SteamwarUser user = getUser(player);
         if(BauServerInfo.isBauServer() && BauServerInfo.getOwnerId() != user.getId() &&

SpigotCore/CRIUDummy/src/org/eclipse/openj9/criu/CRIUSupport.java

@@ -31,19 +31,23 @@ public class CRIUSupport {
         throw new UnsupportedOperationException("This is a Dummy");
     }
 
-    public void setAutoDedup(boolean autoDedup) {
+    public CRIUSupport setGhostFileLimit(long limit) {
         throw new UnsupportedOperationException("This is a Dummy");
     }
 
-    public void setShellJob(boolean shellJob) {
+    public CRIUSupport setAutoDedup(boolean autoDedup) {
         throw new UnsupportedOperationException("This is a Dummy");
     }
 
-    public void setFileLocks(boolean fileLocks) {
+    public CRIUSupport setShellJob(boolean shellJob) {
         throw new UnsupportedOperationException("This is a Dummy");
     }
 
-    public void setLogFile(String logFile) {
+    public CRIUSupport setFileLocks(boolean fileLocks) {
+        throw new UnsupportedOperationException("This is a Dummy");
+    }
+
+    public CRIUSupport setLogFile(String logFile) {
         throw new UnsupportedOperationException("This is a Dummy");
     }
 

SpigotCore/CRIUDummy/src/org/eclipse/openj9/criu/JVMCRIUException.java

@@ -19,5 +19,8 @@
 
 package org.eclipse.openj9.criu;
 
+import lombok.experimental.StandardException;
+
+@StandardException
 public class JVMCRIUException extends Exception {
 }

SpigotCore/SpigotCore_21/build.gradle.kts

@@ -37,4 +37,7 @@ dependencies {
 
     compileOnly(libs.paperapi21)
     compileOnly(libs.nms21)
+    compileOnly(libs.datafixer)
+    compileOnly(libs.netty)
+    compileOnly(libs.authlib)
 }

SpigotCore/SpigotCore_21/src/de/steamwar/core/ProtocolWrapper21.java

@@ -0,0 +1,66 @@
+/*
+ *    This file is a part of the SteamWar software.
+ *
+ *    Copyright (C) 2022  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.core;
+
+import com.mojang.authlib.GameProfile;
+import com.mojang.datafixers.util.Pair;
+import de.steamwar.Reflection;
+import net.minecraft.Util;
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoRemovePacket;
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket;
+import net.minecraft.world.level.GameType;
+import org.bukkit.GameMode;
+
+import java.util.Collections;
+import java.util.EnumSet;
+import java.util.List;
+import java.util.function.LongSupplier;
+
+public class ProtocolWrapper21 implements ProtocolWrapper {
+
+    private static final Reflection.Field<List> equipmentStack = Reflection.getField(equipmentPacket, List.class, 0);
+    @Override
+    public void setEquipmentPacketStack(Object packet, Object slot, Object stack) {
+        equipmentStack.set(packet, Collections.singletonList(new Pair<>(slot, stack)));
+    }
+
+    private static final Reflection.Constructor removePacketConstructor = Reflection.getConstructor(ClientboundPlayerInfoRemovePacket.class, List.class);
+
+    @Override
+    @SuppressWarnings("deprecation")
+    public Object playerInfoPacketConstructor(PlayerInfoAction action, GameProfile profile, GameMode mode) {
+        if(action == PlayerInfoAction.REMOVE)
+            return removePacketConstructor.invoke(Collections.singletonList(profile.getId()));
+        return switch (action) {
+            case ADD -> new ClientboundPlayerInfoUpdatePacket(EnumSet.of(ClientboundPlayerInfoUpdatePacket.Action.ADD_PLAYER, ClientboundPlayerInfoUpdatePacket.Action.UPDATE_GAME_MODE), new ClientboundPlayerInfoUpdatePacket.Entry(
+                    profile.getId(), profile, true, 0, GameType.byId(mode.getValue()), null, true, 0, null
+            ));
+            case GAMEMODE -> new ClientboundPlayerInfoUpdatePacket(EnumSet.of(ClientboundPlayerInfoUpdatePacket.Action.UPDATE_GAME_MODE), new ClientboundPlayerInfoUpdatePacket.Entry(
+                    profile.getId(), profile, true, 0, GameType.byId(mode.getValue()), null, true, 0, null
+            ));
+            default -> null;
+        };
+    }
+
+    @Override
+    public void initTPSWarp(LongSupplier longSupplier) {
+        Util.timeSource = () -> System.nanoTime() + longSupplier.getAsLong();
+    }
+}

SpigotCore/SpigotCore_21/src/de/steamwar/techhider/ChunkHider21.java

@@ -0,0 +1,157 @@
+/*
+ *   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;
+
+import de.steamwar.Reflection;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData;
+import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
+import net.minecraft.util.SimpleBitStorage;
+import net.minecraft.world.level.block.entity.BlockEntityType;
+import org.bukkit.entity.Player;
+
+import java.util.List;
+import java.util.Set;
+import java.util.function.BiFunction;
+import java.util.function.UnaryOperator;
+import java.util.stream.Collectors;
+
+public class ChunkHider21 implements ChunkHider {
+    @Override
+    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);
+
+    @Override
+    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;
+        };
+    }
+
+    public static final Class<?> tileEntity = Reflection.getClass("net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData$BlockEntityInfo");
+    protected static final Reflection.Field<BlockEntityType> entityType = Reflection.getField(tileEntity, BlockEntityType.class, 0);
+    private static final Class<?> builtInRegestries = Reflection.getClass("net.minecraft.core.registries.BuiltInRegistries");
+    private static final Class<?> registry = Reflection.getClass("net.minecraft.core.Registry");
+    private static final Reflection.Field<?> nameField = Reflection.getField(builtInRegestries, "BLOCK_ENTITY_TYPE", registry);
+    private static final Class<?> resourceLocation = Reflection.getClass("net.minecraft.resources.ResourceLocation");
+    private static final Reflection.Method getKey = Reflection.getTypedMethod(registry, "getKey", resourceLocation, Object.class);
+    private static final Reflection.Method getName = Reflection.getTypedMethod(resourceLocation, "getPath", String.class);
+    protected boolean tileEntityVisible(Set<String> hiddenBlockEntities, Object tile) {
+        return !hiddenBlockEntities.contains(getName.invoke(getKey.invoke(nameField.get(null), entityType.get(tile))));
+    }
+
+    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 {
+            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);
+        }
+    }
+}

SpigotCore/SpigotCore_Main/src/de/steamwar/Reflection.java

@@ -157,7 +157,23 @@ public final class Reflection {
 			} else if(MAJOR_VERSION < 21 || MINOR_VERSION < 4) {
 				return Class.forName(spigotClassnames.getOrDefault(name, name));
 			} else {
-				return Class.forName(name);
+				Class<?> clazz = null;
+				try {
+					clazz = Class.forName(name);
+				} catch (ClassNotFoundException e) {}
+				if (clazz != null && clazz.getName().equals(name)) {
+					return clazz;
+				}
+
+				try {
+					return Core.class.getClassLoader().getParent().loadClass(name);
+				} catch (ClassNotFoundException e) {
+					if (clazz == null) {
+						throw e;
+					}
+
+					return clazz;
+				}
 			}
 		} catch (ClassNotFoundException e) {
 			throw new IllegalArgumentException("Cannot find " + name, e);

SpigotCore/SpigotCore_Main/src/de/steamwar/core/CheckpointUtilsJ9.java

@@ -19,8 +19,8 @@
 
 package de.steamwar.core;
 
-import de.steamwar.Reflection;
 import com.comphenix.tinyprotocol.TinyProtocol;
+import de.steamwar.Reflection;
 import de.steamwar.sql.internal.Statement;
 import io.netty.channel.ChannelFuture;
 import org.bukkit.Bukkit;
@@ -112,6 +112,7 @@ class CheckpointUtilsJ9 {
         // Do the checkpoint
         path.toFile().mkdirs();
         CRIUSupport criu = new CRIUSupport(path);
+        criu.setGhostFileLimit(10L * 1024L * 1024L);
         criu.setAutoDedup(true);
         criu.setFileLocks(true);
         criu.setShellJob(true);

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

@@ -39,11 +39,14 @@ import org.bukkit.util.Vector;
 
 public class WorldEditRenderer implements Listener {
 
+    private static WorldEditRenderer INSTANCE;
+
     private static final Material WAND = FlatteningWrapper.impl.getMaterial("WOOD_AXE");
 
     private final WorldEditPlugin we;
 
     public WorldEditRenderer() {
+        INSTANCE = this;
         we = WorldEditWrapper.getWorldEditPlugin();
         Bukkit.getPluginManager().registerEvents(this, Core.getInstance());
 
@@ -54,6 +57,10 @@ public class WorldEditRenderer implements Listener {
         }, 20, 20);
     }
 
+    public static void renderPlayer(Player player) {
+        WorldEditRenderer.INSTANCE.renderPlayer(player, false);
+    }
+
     private void renderPlayer(Player player, boolean scheduled) {
         LocalSession session = we.getSession(player);
         renderClipboard(player, session, scheduled);

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

@@ -0,0 +1,127 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2020  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.entity;
+
+import org.bukkit.Location;
+import org.bukkit.block.BlockFace;
+import org.bukkit.util.Transformation;
+import org.joml.Quaternionf;
+import org.joml.Vector3f;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+public class CCubedTextDisplay extends CEntity {
+
+    private Map<BlockFace, RTextDisplay> displays = new HashMap<>();
+
+    public CCubedTextDisplay(REntityServer server, Location loc) {
+        super(server);
+        {
+            Location location = loc.clone().add(0.5, 0.4, 1.01);
+            RTextDisplay display = new RTextDisplay(server, location);
+            entities.add(display);
+            displays.put(BlockFace.SOUTH, display);
+        }
+        {
+            Location location = loc.clone().add(0.5, 0.4, -0.01);
+            RTextDisplay display = new RTextDisplay(server, location);
+            display.setTransform(new Transformation(new Vector3f(0, 0, 0), new Quaternionf().rotateY((float) Math.toRadians(180)), new Vector3f(1, 1, 1), new Quaternionf()));
+            entities.add(display);
+            displays.put(BlockFace.NORTH, display);
+        }
+        {
+            Location location = loc.clone().add(1.01, 0.4, 0.5);
+            RTextDisplay display = new RTextDisplay(server, location);
+            display.setTransform(new Transformation(new Vector3f(0, 0, 0), new Quaternionf().rotateY((float) Math.toRadians(90)), new Vector3f(1, 1, 1), new Quaternionf()));
+            entities.add(display);
+            displays.put(BlockFace.EAST, display);
+        }
+        {
+            Location location = loc.clone().add(-0.01, 0.4, 0.5);
+            RTextDisplay display = new RTextDisplay(server, location);
+            display.setTransform(new Transformation(new Vector3f(0, 0, 0), new Quaternionf().rotateY((float) Math.toRadians(270)), new Vector3f(1, 1, 1), new Quaternionf()));
+            entities.add(display);
+            displays.put(BlockFace.WEST, display);
+        }
+        {
+            Location location = loc.clone().add(0.5, 1.01, 0.6);
+            RTextDisplay display = new RTextDisplay(server, location);
+            display.setTransform(new Transformation(new Vector3f(0, 0, 0), new Quaternionf().rotationX((float) Math.toRadians(270)), new Vector3f(1, 1, 1), new Quaternionf()));
+            entities.add(display);
+            displays.put(BlockFace.UP, display);
+        }
+        {
+            Location location = loc.clone().add(0.5, -0.01, 0.4);
+            RTextDisplay display = new RTextDisplay(server, location);
+            display.setTransform(new Transformation(new Vector3f(0, 0, 0), new Quaternionf().rotationX((float) Math.toRadians(90)), new Vector3f(1, 1, 1), new Quaternionf()));
+            entities.add(display);
+            displays.put(BlockFace.DOWN, display);
+        }
+    }
+
+    public void hide(Set<BlockFace> blockFaceSet) {
+        for (BlockFace blockFace : BlockFace.values()) {
+            RTextDisplay display = displays.get(blockFace);
+            if (display == null) continue;
+            display.hide(blockFaceSet.contains(blockFace));
+        }
+        if (displays.values().stream().allMatch(RTextDisplay::isHidden)) {
+            displays.values().forEach(rTextDisplay -> rTextDisplay.hide(false));
+        }
+    }
+
+    @Override
+    public void move(Location location) {
+    }
+
+    @Override
+    public void move(double locX, double locY, double locZ, float pitch, float yaw, byte headYaw) {
+    }
+
+    public void setText(String text) {
+        displays.values().forEach(rTextDisplay -> rTextDisplay.setText(text));
+    }
+
+    public void setLineWidth(int lineWidth) {
+        displays.values().forEach(rTextDisplay -> rTextDisplay.setLineWidth(lineWidth));
+    }
+
+    public void setTextOpacity(byte textOpacity) {
+        displays.values().forEach(rTextDisplay -> rTextDisplay.setTextOpacity(textOpacity));
+    }
+
+    public void setShadowed(boolean shadowed) {
+        displays.values().forEach(rTextDisplay -> rTextDisplay.setShadowed(shadowed));
+    }
+
+    public void setSeeThrough(boolean seeThrough) {
+        displays.values().forEach(rTextDisplay -> rTextDisplay.setSeeThrough(seeThrough));
+    }
+
+    public void setBackgroundColor(int color) {
+        displays.values().forEach(rTextDisplay -> rTextDisplay.setBackgroundColor(color));
+    }
+
+    public void setDefaultBackground(boolean defaultBackground) {
+        displays.values().forEach(rTextDisplay -> rTextDisplay.setDefaultBackground(defaultBackground));
+    }
+}

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

@@ -19,6 +19,7 @@
 
 package de.steamwar.entity;
 
+import lombok.Getter;
 import org.bukkit.Location;
 import org.bukkit.block.data.BlockData;
 import org.bukkit.entity.Display;
@@ -31,6 +32,10 @@ import org.joml.Vector3f;
 
 import java.util.Objects;
 
+/**
+ * Can be used for Axis Aligned Lines of near infinite length.
+ */
+@Getter
 public class CLine extends CEntity {
 
     public static final float DEFAULT_WIDTH = 1 / 16f;

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

@@ -0,0 +1,131 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2020  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 lombok.Getter;
+import org.bukkit.Location;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.entity.Display;
+import org.bukkit.util.Consumer;
+import org.bukkit.util.Transformation;
+import org.joml.Quaternionf;
+import org.joml.Vector3f;
+
+import java.util.Objects;
+
+/**
+ * Can be used for Lines of short length.
+ */
+@Getter
+public class CRay extends CEntity {
+
+    public static final float DEFAULT_WIDTH = 1 / 16f;
+
+    private Location from;
+    private Location to;
+    private float width = DEFAULT_WIDTH;
+    private BlockData blockData = RBlockDisplay.DEFAULT_BLOCK;
+    private boolean hide = false;
+
+    public CRay(REntityServer server) {
+        super(server);
+    }
+
+    private <T> CRay checkAndSet(T currentValue, T newValue, Consumer<T> setter) {
+        if (Objects.equals(currentValue, newValue)) return this;
+        setter.accept(newValue);
+        tick();
+        return this;
+    }
+
+    public CRay setFrom(Location from) {
+        return checkAndSet(this.from, from, location -> this.from = location);
+    }
+
+    public CRay setTo(Location to) {
+        return checkAndSet(this.to, to, location -> this.to = location);
+    }
+
+    public CRay setWidth(float width) {
+        return checkAndSet(this.width, width, location -> this.width = width);
+    }
+
+    public CRay setBlock(BlockData blockData) {
+        if (this.blockData.equals(blockData)) return this;
+        if (blockData == null) {
+            this.blockData = RBlockDisplay.DEFAULT_BLOCK;
+        } else {
+            this.blockData = blockData;
+        }
+        if (display != null) {
+            display.setBlock(blockData);
+        }
+        return this;
+    }
+
+    @Override
+    public void hide(boolean hide) {
+        if (hide == this.hide) return;
+        this.hide = hide;
+        if (hide) {
+            if (display != null) display.hide(true);
+        } else {
+            tick();
+        }
+    }
+
+    @Override
+    void tick() {
+        if (from == null || to == null) return;
+        if (hide) return;
+        updateDisplay();
+    }
+
+    private RBlockDisplay display;
+
+    private void updateDisplay() {
+        if (display == null) {
+            display = new RBlockDisplay(server, new Location(null, 0, 0, 0));
+            display.setBrightness(new Display.Brightness(15, 15));
+            display.setViewRange(560);
+            display.setBlock(blockData);
+            entities.add(display);
+        } else {
+            display.hide(false);
+        }
+
+        Vector3f pointA = new Vector3f((float) from.getX(), (float) from.getY(), (float) from.getZ());
+        Vector3f pointB = new Vector3f((float) to.getX(), (float) to.getY(), (float) to.getZ());
+        Vector3f direction = new Vector3f(pointB).sub(pointA);
+        float length = direction.length();
+
+        display.move(from);
+
+        Vector3f normalizedDir = new Vector3f(direction).normalize();
+
+        final Vector3f defaultAxis = new Vector3f(1, 0, 0);
+        Quaternionf rotation = new Quaternionf().rotationTo(defaultAxis, normalizedDir);
+
+        Vector3f scale = new Vector3f(length, width, width);
+
+        Transformation transformation = new Transformation(new Vector3f(0, 0, 0), rotation, scale, new Quaternionf());
+        display.setTransform(transformation);
+    }
+}

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

@@ -189,6 +189,7 @@ public class REntityServer implements Listener {
     private void removeEntityFromChunk(REntity entity) {
         long id = entityToId(entity);
         HashSet<REntity> entitiesInChunk = entities.get(id);
+        if (entitiesInChunk == null) return;
         entitiesInChunk.remove(entity);
         if(entitiesInChunk.isEmpty())
             entities.remove(id);

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

@@ -35,6 +35,7 @@ import org.bukkit.Location;
 import org.bukkit.entity.EntityType;
 import org.bukkit.inventory.ItemStack;
 
+import java.nio.charset.StandardCharsets;
 import java.util.Map;
 import java.util.UUID;
 import java.util.function.Consumer;
@@ -70,7 +71,7 @@ public class RPlayer extends REntity {
     private final String name;
 
     public RPlayer(REntityServer server, UUID uuid, String name, Location location) {
-        super(server, EntityType.PLAYER, UUID.randomUUID(), location,0);
+        super(server, EntityType.PLAYER, UUID.nameUUIDFromBytes(uuid.toString().getBytes(StandardCharsets.UTF_8)), location,0);
         this.actualUUID = uuid;
         this.name = name;
         server.addEntity(this);

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

@@ -47,7 +47,7 @@ public class RTextDisplay extends RDisplay {
 
     private boolean seeThrough;
 
-    private boolean defaultBackground;
+    private Integer backgroundColor;
 
     private TextDisplay.TextAlignment alignment;
 
@@ -58,7 +58,7 @@ public class RTextDisplay extends RDisplay {
         this.textOpacity = (byte) -1;
         this.shadowed = false;
         this.seeThrough = false;
-        this.defaultBackground = false;
+        this.backgroundColor = null;
         this.alignment = TextDisplay.TextAlignment.CENTER;
         server.addEntity(this);
     }
@@ -116,8 +116,22 @@ public class RTextDisplay extends RDisplay {
         sendPacket(updatePacketSink, this::getTextStatus);
     }
 
+    public void setBackgroundColor(int color) {
+        this.backgroundColor = color;
+        sendPacket(updatePacketSink, this::getTextStatus, this::getBackgroundColor);
+    }
+
+    private static final Object backgroundColorWatcher = BountifulWrapper.impl.getDataWatcherObject(Core.getVersion() >= 21 ? 25 : 24, Integer.class);
+    private void getBackgroundColor(boolean ignoreDefault, BiConsumer<Object, Object> packetSink) {
+        if (ignoreDefault || backgroundColor != null) {
+            packetSink.accept(backgroundColorWatcher, backgroundColor);
+        }
+    }
+
     public void setDefaultBackground(boolean defaultBackground) {
-        this.defaultBackground = defaultBackground;
+        if (defaultBackground) {
+            this.backgroundColor = null;
+        }
         sendPacket(updatePacketSink, this::getTextStatus);
     }
 
@@ -136,7 +150,7 @@ public class RTextDisplay extends RDisplay {
         if (seeThrough) {
             status |= 0x02;
         }
-        if (defaultBackground) {
+        if (backgroundColor == null) {
             status |= 0x04;
         }
         if (alignment == TextDisplay.TextAlignment.CENTER) {

SpigotCore/SpigotCore_Main/src/de/steamwar/inventory/SWInventory.java

@@ -86,6 +86,10 @@ public class SWInventory implements Listener {
         }
     }
 
+    public boolean hasItem(int pos) {
+        return inventory.getItem(pos) != null;
+    }
+
     public void setItem(int pos, SWItem item) {
         setItem(pos, item.getItemStack(), item.getCallback());
     }

SpigotCore/SpigotCore_Main/src/de/steamwar/inventory/SWItem.java

@@ -220,4 +220,9 @@ public class SWItem {
         itemStack.setItemMeta(itemMeta);
         return this;
     }
+
+    public SWItem setAmount(int count) {
+        itemStack.setAmount(count);
+        return this;
+    }
 }

SpigotCore/SpigotCore_Main/src/de/steamwar/network/CoreNetworkHandler.java

@@ -59,6 +59,11 @@ public class CoreNetworkHandler extends PacketHandler {
         InventoryHandler.handleInventoryPacket(packet);
     }
 
+    @Handler
+    public void handleAnvilPacket(AnvilInventoryPacket packet) {
+        InventoryHandler.handleAnvilInventoryPacket(packet);
+    }
+
     @Handler
     public void handlePingPacket(PingPacket packet) {
         UUID uuid = SteamwarUser.get(packet.getId()).getUUID();

SpigotCore/SpigotCore_Main/src/de/steamwar/network/handlers/InventoryHandler.java

@@ -20,11 +20,15 @@
 package de.steamwar.network.handlers;
 
 import com.google.gson.JsonParser;
+import de.steamwar.inventory.SWAnvilInv;
 import de.steamwar.inventory.SWInventory;
 import de.steamwar.inventory.SWItem;
 import de.steamwar.network.NetworkSender;
+import de.steamwar.network.packets.NetworkPacket;
 import de.steamwar.network.packets.PacketHandler;
+import de.steamwar.network.packets.client.AnvilAnswerPacket;
 import de.steamwar.network.packets.client.InventoryCallbackPacket;
+import de.steamwar.network.packets.server.AnvilInventoryPacket;
 import de.steamwar.network.packets.server.InventoryPacket;
 import de.steamwar.sql.SteamwarUser;
 import org.bukkit.Bukkit;
@@ -53,4 +57,20 @@ public class InventoryHandler extends PacketHandler {
         });
         inventory.open();
     }
+
+    @Handler
+    public static void handleAnvilInventoryPacket(AnvilInventoryPacket packet) {
+        Player player = Bukkit.getPlayer(SteamwarUser.get(packet.getPlayerId()).getUUID());
+
+        SWAnvilInv inv = new SWAnvilInv(player, packet.getTitle(), packet.getDefaultText());
+        if (packet.getMaterial() != null && !packet.getMaterial().isEmpty()) {
+            inv.setItem(SWItem.getMaterial(packet.getMaterial()));
+        }
+
+        inv.setCallback(s -> NetworkSender.send(AnvilAnswerPacket.builder().playerId(packet.getPlayerId()).action(AnvilAnswerPacket.Action.ANSWER).text(s).build()));
+        inv.addLeftCallback(() -> NetworkSender.send(AnvilAnswerPacket.builder().playerId(packet.getPlayerId()).action(AnvilAnswerPacket.Action.LEFT_CLICK).build()));
+        inv.addCloseCallback(() -> NetworkSender.send(AnvilAnswerPacket.builder().playerId(packet.getPlayerId()).action(AnvilAnswerPacket.Action.CLOSE).build()));
+
+        inv.open();
+    }
 }

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

@@ -53,6 +53,7 @@ public interface ChunkHider {
 
         private boolean paletted;
         private int bitsPerBlock;
+        private int blockCount;
         private int air;
         private int target;
         private Set<Integer> obfuscate;
@@ -86,7 +87,8 @@ public interface ChunkHider {
         }
 
         public void copyBlockCount() {
-            out.writeShort(in.readShort());
+            this.blockCount = in.readShort();
+            out.writeShort(blockCount);
         }
 
         public void copyBitsPerBlock() {
@@ -140,6 +142,16 @@ public interface ChunkHider {
             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++)
@@ -148,6 +160,20 @@ public interface ChunkHider {
             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/ProtocolUtils.java

@@ -58,6 +58,16 @@ public class ProtocolUtils {
         };
     }
 
+    public static <T> UnaryOperator<T> shallowTypedCloneGenerator(Class<T> clazz) {
+        BiConsumer<Object, Object> filler = shallowFill(clazz);
+
+        return source -> {
+            Object clone = Reflection.newInstance(clazz);
+            filler.accept(source, clone);
+            return (T) clone;
+        };
+    }
+
     private static BiConsumer<Object, Object> shallowFill(Class<?> clazz) {
         if(clazz == null)
             return (source, clone) -> {};

SpigotCore/SpigotCore_Main/src/plugin.yml

@@ -1,7 +1,7 @@
 name: SpigotCore
 version: "2.0"
 author: Lixfel
-api-version: "1.13"
+api-version: "1.21"
 load: STARTUP
 softdepend:
   - WorldEdit

Teamserver/src/de/steamwar/teamserver/Builder.java

@@ -19,12 +19,14 @@
 
 package de.steamwar.teamserver;
 
+import de.steamwar.core.Core;
 import de.steamwar.core.WorldEditRendererCUIEditor;
 import de.steamwar.message.Message;
 import de.steamwar.teamserver.command.*;
 import de.steamwar.teamserver.listener.AxiomHandshakeListener;
 import de.steamwar.teamserver.listener.FreezeListener;
 import de.steamwar.teamserver.listener.PlayerChange;
+import de.steamwar.teamserver.listener.SelectAdjacent;
 import org.bukkit.Bukkit;
 import org.bukkit.GameRule;
 import org.bukkit.plugin.java.JavaPlugin;
@@ -60,6 +62,10 @@ public final class Builder extends JavaPlugin {
 
         Bukkit.getWorlds().get(0).setGameRule(GameRule.REDUCED_DEBUG_INFO, false);
         new WorldEditRendererCUIEditor();
+
+        if (Core.getVersion() >= 20) {
+            Bukkit.getPluginManager().registerEvents(new SelectAdjacent(), this);
+        }
     }
 
     @Override

Teamserver/src/de/steamwar/teamserver/listener/SelectAdjacent.java

@@ -0,0 +1,177 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2020  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.teamserver.listener;
+
+import com.sk89q.worldedit.bukkit.BukkitWorld;
+import com.sk89q.worldedit.bukkit.WorldEditPlugin;
+import com.sk89q.worldedit.math.BlockVector3;
+import com.sk89q.worldedit.regions.selector.CuboidRegionSelector;
+import com.sk89q.worldedit.world.World;
+import de.steamwar.core.WorldEditRenderer;
+import de.steamwar.teamserver.Builder;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.block.BlockFace;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.Action;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+import org.bukkit.scheduler.BukkitTask;
+import org.bukkit.util.Vector;
+
+import java.util.*;
+import java.util.function.Predicate;
+
+public class SelectAdjacent implements Listener {
+
+    private Vector[] FACES = {
+            new Vector(1, 0, 0),
+            new Vector(-1, 0, 0),
+            new Vector(0, 1, 0),
+            new Vector(0, -1, 0),
+            new Vector(0, 0, 1),
+            new Vector(0, 0, -1),
+
+            new Vector(1, 1, 0),
+            new Vector(1, -1, 0),
+            new Vector(1, 0, 1),
+            new Vector(1, 0, -1),
+            new Vector(-1, 1, 0),
+            new Vector(-1, -1, 0),
+            new Vector(-1, 0, 1),
+            new Vector(-1, 0, -1),
+            new Vector(0, 1, 1),
+            new Vector(0, 1, -1),
+            new Vector(0, -1, 1),
+            new Vector(0, -1, -1),
+    };
+
+    private Map<Player, Selector> selectors = new HashMap<>();
+
+    @EventHandler
+    public void onPlayerInteract(PlayerInteractEvent event) {
+        if (!event.hasItem()) return;
+        if (event.getItem().getType() != Material.WOODEN_AXE) return;
+        if (!event.getPlayer().isSneaking()) return;
+        if (event.getAction() != Action.LEFT_CLICK_BLOCK) return;
+        Selector selector = selectors.get(event.getPlayer());
+        if (selector != null) selector.cancel();
+        Material material = event.getPlayer().getInventory().getItemInOffHand().getType();
+        if (material.isAir()) {
+            selector = new Selector(event.getClickedBlock(), event.getPlayer(), __ -> true);
+        } else {
+            selector = new Selector(event.getClickedBlock(), event.getPlayer(), type -> type == material);
+        }
+        selectors.put(event.getPlayer(), selector);
+    }
+
+    @EventHandler
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        Selector selector = selectors.remove(event.getPlayer());
+        if (selector != null) selector.cancel();
+    }
+
+    private static final WorldEditPlugin WORLDEDIT_PLUGIN = Objects.requireNonNull((WorldEditPlugin) Bukkit.getPluginManager().getPlugin("WorldEdit"));
+    private static final World BUKKITWORLD = new BukkitWorld(Bukkit.getWorlds().get(0));
+
+    private class Selector {
+
+        private static final int MAX_BLOCKS = 1_000_000;
+
+        private int minX;
+        private int minY;
+        private int minZ;
+        private int maxX;
+        private int maxY;
+        private int maxZ;
+
+        private BukkitTask bukkitTask;
+        private Predicate<Material> predicate;
+        private Set<Location> seen = new HashSet<>();
+        private Set<Location> toCalc = new HashSet<>();
+
+        public Selector(Block block, Player player, Predicate<Material> predicate) {
+            this.predicate = predicate;
+            toCalc.add(block.getLocation());
+            minX = block.getX();
+            minY = block.getY();
+            minZ = block.getZ();
+            maxX = block.getX();
+            maxY = block.getY();
+            maxZ = block.getZ();
+
+            bukkitTask = Bukkit.getScheduler().runTaskTimer(Builder.getInstance(), () -> {
+                run();
+
+                long volume = (long)(maxX - minX + 1) * (long)(maxY - minY + 1) * (long)(maxZ - minZ + 1);
+                player.sendTitle("", "§e" + volume + " §7Blocks", 0, 5, 0);
+
+                WORLDEDIT_PLUGIN.getSession(player).setRegionSelector(BUKKITWORLD, new CuboidRegionSelector(BUKKITWORLD, BlockVector3.at(minX, minY, minZ), BlockVector3.at(maxX, maxY, maxZ)));
+                WorldEditRenderer.renderPlayer(player);
+
+                // boolean finished = toCalc.stream().allMatch(location -> {
+                //     return location.getBlockX() >= minX && location.getBlockY() >= minY && location.getBlockZ() >= minZ &&
+                //             location.getBlockX() <= maxX && location.getBlockY() <= maxY && location.getBlockZ() <= maxZ;
+                // });
+
+                if (toCalc.isEmpty() || seen.size() > MAX_BLOCKS) {
+                    bukkitTask.cancel();
+                    player.sendTitle("§aDone", "§e" + volume + " §7Blocks", 0, 20, 5);
+                }
+            }, 1, 1);
+        }
+
+        private void cancel() {
+            bukkitTask.cancel();
+        }
+
+        private void run() {
+            Set<Location> current = toCalc;
+            toCalc = new HashSet<>();
+
+            for (Location location : current) {
+                Block block = location.getBlock();
+                if (block.isEmpty() || block.isLiquid()) continue;
+                if (!predicate.test(block.getType())) continue;
+                seen.add(location);
+
+                minX = Math.min(minX, location.getBlockX());
+                maxX = Math.max(maxX, location.getBlockX());
+                minY = Math.min(minY, location.getBlockY());
+                maxY = Math.max(maxY, location.getBlockY());
+                minZ = Math.min(minZ, location.getBlockZ());
+                maxZ = Math.max(maxZ, location.getBlockZ());
+
+                for (Vector face : FACES) {
+                    Block next = block.getRelative(face.getBlockX(), face.getBlockY(), face.getBlockZ());
+                    if (next.isEmpty() || next.isLiquid()) continue;
+                    if (!predicate.test(next.getType())) continue;
+                    Location loc = next.getLocation();
+                    if (seen.contains(loc)) continue;
+                    toCalc.add(loc);
+                }
+            }
+        }
+    }
+}

VelocityCore/Persistent/src/de/steamwar/persistent/Subserver.java

@@ -220,7 +220,8 @@ public class Subserver {
         try {
             if (checkpoint) {
                 start(process.getErrorStream(), line -> line.contains("Restore finished successfully."));
-                Thread.sleep(300);
+                start(process.getInputStream(), line -> line.contains("Checkpoint restored"));
+                Thread.sleep(100);
             } else {
                 start(process.getInputStream(), line -> {
                     if (line.contains("Loading libraries, please wait"))

VelocityCore/src/de/steamwar/command/TypeUtils.java

@@ -46,7 +46,9 @@ public class TypeUtils {
                 Player player = sender.getPlayer();
                 if (player != null && s.isEmpty()) {
                     ProtocolVersion version = player.getProtocolVersion();
-                    if (version.greaterThan(ProtocolVersion.MINECRAFT_1_19_4)) {
+                    if (version.greaterThan(ProtocolVersion.MINECRAFT_1_20_5)) {
+                        return ServerVersion.PAPER_21;
+                    } else if (version.greaterThan(ProtocolVersion.MINECRAFT_1_19_4)) {
                         return ServerVersion.PAPER_20;
                     } else if (version.greaterThan(ProtocolVersion.MINECRAFT_1_15_2)) {
                         return ServerVersion.PAPER_19;

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

@@ -61,7 +61,7 @@ public class ServerStarter {
     private String worldDir = null;
 
     private Node node = null;
-    private ServerVersion version = ServerVersion.PAPER_20;
+    private ServerVersion version = ServerVersion.PAPER_21;
     private Portrange portrange = BAU_PORTS;
     private Function<Integer, String> serverNameProvider = port -> node.getName() + port;
     private BooleanSupplier startCondition = () -> true;

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

@@ -224,7 +224,7 @@ public class VelocityCore implements ReloadablePlugin {
 
         for(PacketHandler handler : new PacketHandler[] {
                 new EloPlayerHandler(), new EloSchemHandler(), new ExecuteCommandHandler(), new FightInfoHandler(),
-                new ImALobbyHandler(), new InventoryCallbackHandler(), new PrepareSchemHandler(), new PlayerSkinHandler()
+                new ImALobbyHandler(), new InventoryCallbackHandler(), new PrepareSchemHandler(), new PlayerSkinHandler(), new AnvilAnswerHandler()
         })
             handler.register();
 

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

@@ -73,6 +73,14 @@ public class DevCommand extends SWCommand {
         sender.getPlayer().createConnectionRequest(server).fireAndForget();
     }
 
+    @Register(value = "reloadmodes")
+    public void reloadModes(Chatter sender) {
+        if(!sender.user().hasPerm(UserPerm.ADMINISTRATION))
+            return;
+
+        ArenaMode.init();
+    }
+
     @Register
     public void selectedCommand(@Validator PlayerChatter sender, @Mapper("dev") String name) {
         updateDevServers();
@@ -85,14 +93,6 @@ public class DevCommand extends SWCommand {
         sender.getPlayer().createConnectionRequest(server).fireAndForget();
     }
 
-    @Register(value = "reloadmodes")
-    public void reloadModes(Chatter sender) {
-        if(!sender.user().hasPerm(UserPerm.ADMINISTRATION))
-            return;
-
-        ArenaMode.init();
-    }
-
     @ClassValidator(value = PlayerChatter.class, local = true)
     public TypeValidator<PlayerChatter> punishmentGuardChecker() {
         return (sender, value, messageSender) -> {

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

@@ -41,7 +41,6 @@ import net.dv8tion.jda.api.entities.Role;
 import net.dv8tion.jda.api.entities.emoji.Emoji;
 import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
 import net.dv8tion.jda.api.exceptions.ErrorResponseException;
-import net.dv8tion.jda.api.interactions.commands.Command;
 import net.dv8tion.jda.api.interactions.commands.OptionType;
 import net.dv8tion.jda.api.interactions.commands.build.CommandData;
 import net.dv8tion.jda.api.interactions.commands.build.Commands;
@@ -49,13 +48,14 @@ import net.dv8tion.jda.api.interactions.commands.build.OptionData;
 import net.dv8tion.jda.api.interactions.components.ActionRow;
 import net.dv8tion.jda.api.interactions.components.buttons.Button;
 import net.dv8tion.jda.api.requests.GatewayIntent;
-import net.dv8tion.jda.api.requests.restaction.CommandListUpdateAction;
 import net.dv8tion.jda.api.utils.MemberCachePolicy;
 import net.dv8tion.jda.api.utils.messages.MessageCreateBuilder;
 
 import java.awt.*;
+import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
-import java.util.*;
+import java.util.Map;
 import java.util.concurrent.TimeUnit;
 import java.util.function.Consumer;
 
@@ -67,9 +67,10 @@ public class DiscordBot {
 
     @Getter
     private static final Map<String, SWCommand> commands = new HashMap<>();
+    private final OptionData commandArgument = new OptionData(OptionType.STRING, ARGUMENT_NAME, "Command arguments", false);
 
     public static void withBot(Consumer<DiscordBot> consumer) {
-        if(instance != null)
+        if (instance != null)
             consumer.accept(instance);
     }
 
@@ -130,6 +131,7 @@ public class DiscordBot {
                 reply.system("DC_ROLE_ADDED", role.getAsMention());
             }
         }));
+
         new StaticMessageChannel(config.channel("rules"), () -> new MessageCreateBuilder()
                 .setEmbeds(new EmbedBuilder()
                         .setDescription(String.join("\n", config.getRules()))
@@ -141,9 +143,10 @@ public class DiscordBot {
                         ActionRow.of(Button.link("https://steamwar.de", "Website"), Button.link("https://steamwar.de/youtube", "YouTube")),
                         ActionRow.of(Button.primary("auth", Emoji.fromUnicode("U+2705")).withLabel("Minecraft verknüpfen"))
                 ), event -> {
-            if(event.getComponentId().equals("auth"))
+            if (event.getComponentId().equals("auth"))
                 event.reply("Gebe innerhalb der nächsten 10 Minuten ``/verify " + AuthManager.createDiscordAuthToken(event.getUser()) + "`` auf dem Minecraft Server ein").setEphemeral(true).queue();
         });
+
         List<ActionRow> actionRows = new ArrayList<>();
         List<Button> list = new ArrayList<>();
         for (DiscordTicketType type : DiscordTicketType.values()) {
@@ -163,6 +166,7 @@ public class DiscordBot {
                         .setColor(Color.RED)
                         .build())
                 .setComponents(actionRows), DiscordTicketHandler::openTicket);
+
         eventChannel = new StaticMessageChannel(config.channel("events"), EventChannel::get);
         checklistChannel = new ChecklistChannel(config.channel("checklist"));
         config.getCouncilThread().forEach((roleId, threadId) -> new CouncilChannel(DiscordBot.getGuild().getRoleById(roleId), DiscordBot.getGuild().getThreadChannelById(threadId)));
@@ -193,45 +197,32 @@ public class DiscordBot {
 
         VelocityCore.schedule(CouncilChannel::updateAll).repeat(1, TimeUnit.HOURS).schedule();
 
+        VacationCommand vacationCommand = new VacationCommand();
         jda.addEventListener(
                 new DiscordTicketHandler(),
                 new DiscordTeamEvent(),
                 new ChannelListener(),
-                new DiscordSchemUpload()
+                new DiscordSchemUpload(),
+                vacationCommand
         );
 
-        commandSetup(jda.retrieveCommands().complete(), jda.updateCommands());
-    }
-
-    private final OptionData commandArgument = new OptionData(OptionType.STRING, ARGUMENT_NAME, "Command arguments", false);
-    private void commandSetup(List<Command> existing, CommandListUpdateAction updateCommands) {
-        Set<String> correctCommands = new HashSet<>();
-        for(Command command : existing) {
-            if(!commands.containsKey(command.getName())) {
-                command.delete().complete();
-                continue;
-            }
-
-            List<Command.Option> options = command.getOptions();
-            if(options.size() != 1 || options.get(0).getType() != OptionType.STRING)
-                command.editCommand().clearOptions().addOptions(commandArgument).complete();
-
-            correctCommands.add(command.getName());
-        }
-
-        updateCommands
-                .addCommands(commands
-                        .keySet().stream()
-                        .filter(command -> !correctCommands.contains(command))
+        jda.updateCommands()
+                .addCommands(commands.keySet()
+                        .stream()
                         .filter(command -> command.matches("^[\\w-]+$"))
                         .map(command -> Commands.slash(command, command).addOptions(commandArgument))
                         .toArray(CommandData[]::new))
                 .queue();
+
+        jda.getGuildById(1241489896909180998L)
+                .upsertCommand(vacationCommand.COMMAND)
+                .queue();
     }
 
     private boolean activityToggle = false;
+
     private void activity() {
-        if(activityToggle) {
+        if (activityToggle) {
             Event event = Event.get();
             jda.getPresence().setActivity(event != null ? Activity.competing("dem Event " + event.getEventName()) : Activity.playing("auf SteamWar.de"));
         } else {

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

@@ -0,0 +1,189 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2020  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.velocitycore.discord;
+
+import it.unimi.dsi.fastutil.Pair;
+import net.dv8tion.jda.api.entities.Guild;
+import net.dv8tion.jda.api.entities.ScheduledEvent;
+import net.dv8tion.jda.api.events.interaction.command.CommandAutoCompleteInteractionEvent;
+import net.dv8tion.jda.api.events.interaction.command.SlashCommandInteractionEvent;
+import net.dv8tion.jda.api.hooks.ListenerAdapter;
+import net.dv8tion.jda.api.interactions.InteractionHook;
+import net.dv8tion.jda.api.interactions.commands.Command;
+import net.dv8tion.jda.api.interactions.commands.OptionType;
+import net.dv8tion.jda.api.interactions.commands.build.OptionData;
+import net.dv8tion.jda.api.interactions.commands.build.SubcommandData;
+import net.dv8tion.jda.internal.interactions.CommandDataImpl;
+import org.jetbrains.annotations.NotNull;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.OffsetDateTime;
+import java.time.ZoneId;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+public class VacationCommand extends ListenerAdapter {
+
+    private final Guild guild = Objects.requireNonNull(DiscordBot.getInstance().getJda().getGuildById(1241489896909180998L));
+
+    public final CommandDataImpl COMMAND = new CommandDataImpl("vacation", "Verwalte deinen Urlaub");
+
+    public VacationCommand() {
+        COMMAND.addSubcommands(new SubcommandData("create", "Erstelle deinen Urlaub")
+                .addOptions(new OptionData(OptionType.STRING, "from", "Datum (TT.MM.JJJJ)", true),
+                        new OptionData(OptionType.STRING, "to", "Datum (TT.MM.JJJJ)", true)));
+        COMMAND.addSubcommands(new SubcommandData("delete", "Lösche deinen Urlaub")
+                .addOptions(new OptionData(OptionType.STRING, "vacation", "Dein Urlaub", true, true)));
+    }
+
+    @Override
+    public void onSlashCommandInteraction(@NotNull SlashCommandInteractionEvent event) {
+        if (!event.getName().equals("vacation")) return;
+        switch (event.getSubcommandName()) {
+            case "create":
+                createVacation(event);
+                break;
+            case "delete":
+                deleteVacation(event);
+                break;
+            default:
+                break;
+        }
+    }
+
+    public static final DateTimeFormatter PARSER = DateTimeFormatter.ofPattern("dd.MM.uuuu");
+
+    private void createVacation(SlashCommandInteractionEvent event) {
+        InteractionHook interactionHook = event.deferReply(true).complete();
+        String from = event.getOption("from").getAsString();
+        String to = event.getOption("to").getAsString();
+
+        LocalDateTime fromDate;
+        try {
+            fromDate = LocalDate.parse(from, PARSER).atStartOfDay();
+        } catch (DateTimeParseException e) {
+            interactionHook.editOriginal("Das Datumsformat ist falsch! Bitte verwenden Sie TT.MM.JJJJ für den ersten Tag deines Urlaubs").queue();
+            return;
+        }
+        if (fromDate == null) {
+            interactionHook.editOriginal("Das Datumsformat ist falsch! Bitte verwenden Sie TT.MM.JJJJ für den ersten Tag deines Urlaubs").queue();
+            return;
+        }
+        if (!fromDate.isAfter(LocalDateTime.now())) {
+            interactionHook.editOriginal("Bitte gib ein Datum in der Zukunft an!").queue();
+            return;
+        }
+
+        LocalDateTime toDate;
+        try {
+            toDate = LocalDate.parse(to, PARSER).atTime(23, 59, 59);
+        } catch (DateTimeParseException e) {
+            interactionHook.editOriginal("Das Datumsformat ist falsch! Bitte verwenden Sie TT.MM.JJJJ für den letzten Tag deines Urlaubs").queue();
+            return;
+        }
+        if (toDate == null) {
+            interactionHook.editOriginal("Das Datumsformat ist falsch! Bitte verwenden Sie TT.MM.JJJJ für den letzten Tag deines Urlaubs").queue();
+            return;
+        }
+        if (!toDate.isAfter(LocalDateTime.now())) {
+            interactionHook.editOriginal("Bitte gib ein Datum in der Zukunft an!").queue();
+            return;
+        }
+        if (!toDate.isAfter(fromDate)) {
+            interactionHook.editOriginal("Bitte gib ein Datum nach dem ersten Urlaubstag an!").queue();
+            return;
+        }
+
+        guild.createScheduledEvent(
+                        "Urlaub " + event.getMember().getEffectiveName(),
+                        event.getMember().getId(),
+                        OffsetDateTime.of(fromDate, ZoneId.of("Europe/Berlin").getRules().getOffset(fromDate)),
+                        OffsetDateTime.of(toDate, ZoneId.of("Europe/Berlin").getRules().getOffset(toDate))
+                ).onSuccess(scheduledEvent -> {
+                    interactionHook.editOriginal("Urlaub erstellt!").queue();
+                })
+                .onErrorMap(throwable -> {
+                    interactionHook.editOriginal("Urlaub konnte nicht erstellt werden!").queue();
+                    return null;
+                })
+                .queue();
+    }
+
+    private void deleteVacation(SlashCommandInteractionEvent event) {
+        InteractionHook interactionHook = event.deferReply(true).complete();
+        String eventId = event.getOption("vacation").getAsString();
+        ScheduledEvent scheduledEvent = guild.getScheduledEventById(eventId);
+        if (scheduledEvent == null) {
+            interactionHook.editOriginal("Konnte den Urlaub nicht finden!").queue();
+            return;
+        }
+        scheduledEvent.delete()
+                .onSuccess(unused -> {
+                    interactionHook.editOriginal("Urlaub gelöscht!").queue();
+                })
+                .onErrorMap(throwable -> {
+                    interactionHook.editOriginal("Urlaub konnte nicht gelöscht werden!").queue();
+                    return null;
+                })
+                .queue();
+    }
+
+    @Override
+    public void onCommandAutoCompleteInteraction(@NotNull CommandAutoCompleteInteractionEvent event) {
+        if (!event.getName().equals("vacation")) return;
+        switch (event.getFocusedOption().getName()) {
+            case "vacation":
+                listVacations(event);
+                break;
+            default:
+                break;
+        }
+    }
+
+    private void listVacations(CommandAutoCompleteInteractionEvent event) {
+        String vacation = event.getOption("vacation").getAsString();
+        List<Command.Choice> choices = guild.getScheduledEvents()
+                .stream()
+                .filter(scheduledEvent -> scheduledEvent.getLocation().equals(event.getMember().getId()))
+                .map(scheduledEvent -> {
+                    StringBuilder st = new StringBuilder();
+                    st.append(String.format("%02d", scheduledEvent.getStartTime().getDayOfMonth())).append(".");
+                    st.append(String.format("%02d", scheduledEvent.getStartTime().getMonthValue())).append(".");
+                    st.append(scheduledEvent.getStartTime().getYear());
+                    st.append(" - ");
+                    st.append(String.format("%02d", scheduledEvent.getEndTime().getDayOfMonth())).append(".");
+                    st.append(String.format("%02d", scheduledEvent.getEndTime().getMonthValue())).append(".");
+                    st.append(scheduledEvent.getEndTime().getYear());
+                    return Pair.of(scheduledEvent, st.toString());
+                })
+                .filter(pair -> pair.right().startsWith(vacation))
+                .limit(25)
+                .map(pair -> {
+                    return new Command.Choice(pair.right(), pair.left().getId());
+                })
+                .collect(Collectors.toList());
+        event.replyChoices(choices)
+                .queue();
+    }
+}

VelocityCore/src/de/steamwar/velocitycore/discord/listeners/ChannelListener.java

@@ -70,6 +70,7 @@ public class ChannelListener extends ListenerAdapter {
 
     @Override
     public void onSlashCommandInteraction(@NotNull SlashCommandInteractionEvent event) {
+        if (event.getGuild().getIdLong() == 1241489896909180998L) return;
         InteractionReply.reply(event, sender -> {
             if(sender.user().getDiscordId() == null)
                 return;

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

@@ -0,0 +1,69 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.velocitycore.inventory;
+
+import com.velocitypowered.api.proxy.Player;
+import de.steamwar.network.packets.client.AnvilAnswerPacket;
+import de.steamwar.network.packets.server.AnvilInventoryPacket;
+import de.steamwar.sql.SteamwarUser;
+import de.steamwar.velocitycore.network.NetworkSender;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+
+import java.util.HashMap;
+import java.util.function.Consumer;
+
+@AllArgsConstructor
+@Builder(toBuilder = true)
+public class SWAnvilInv {
+    private static final HashMap<Integer, SWAnvilInv> openInv = new HashMap<>();
+
+    public static void handleClick(AnvilAnswerPacket packet) {
+        try {
+            switch (packet.getAction()) {
+                case LEFT_CLICK:
+                    openInv.get(packet.getPlayerId()).leftClickCallback.run();
+                    break;
+                case CLOSE:
+                    openInv.remove(packet.getPlayerId()).closeCallback.run();
+                    break;
+                case ANSWER:
+                    openInv.get(packet.getPlayerId()).callback.accept(packet.getText());
+                    break;
+            }
+        } catch (NullPointerException ignored) { }
+    }
+
+    private final Player player;
+    private final String title;
+    private final String defaultText;
+    private final String material;
+
+    private final Consumer<String> callback;
+    private final Runnable closeCallback;
+    private final Runnable leftClickCallback;
+
+    public void open() {
+        SteamwarUser user = SteamwarUser.get(player.getUniqueId());
+
+        openInv.put(user.getId(), this);
+        NetworkSender.send(player, new AnvilInventoryPacket(user.getId(), title, defaultText, material));
+    }
+}

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

@@ -57,6 +57,7 @@ public class Hostname extends BasicListener {
         knownHostnames.add("78.31.71.136");
         knownHostnames.add("memewar.de"); // Chaoscaot
         knownHostnames.add("dampfkrieg.de"); // Chaoscaot
+        knownHostnames.add("steamshrimp.de"); // Chaoscaot
         knownHostnames.add("127.0.0.1"); // Geyser
 
         knownHostnames.add("@mat:matdoes.dev "); //https://github.com/mat-1/matscan

VelocityCore/src/de/steamwar/velocitycore/network/handlers/AnvilAnswerHandler.java

@@ -0,0 +1,32 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.velocitycore.network.handlers;
+
+import de.steamwar.network.packets.PacketHandler;
+import de.steamwar.network.packets.client.AnvilAnswerPacket;
+import de.steamwar.velocitycore.inventory.SWAnvilInv;
+
+public class AnvilAnswerHandler extends PacketHandler {
+
+    @Handler
+    public void handle(AnvilAnswerPacket packet) {
+        SWAnvilInv.handleClick(packet);
+    }
+}

buildSrc/src/steamwar.devserver.gradle

@@ -46,9 +46,15 @@ class DevServer extends DefaultTask {
     @Optional
     Map<String, String> dParams = new HashMap<>()
 
+    @Input
+    @Optional
+    String checkpointFolder = null
+
     DevServer() {
         super()
         doFirst {
+            if (checkpointFolder != null) dParams.put("checkpoint", checkpointFolder)
+
             List<Project> projects = []
             projects.add(project)
             while (projects.first.parent != null) {

settings.gradle.kts

@@ -126,7 +126,7 @@ dependencyResolutionManagement {
             library("nms18", "de.steamwar:spigot:1.18")
             library("nms19", "de.steamwar:spigot:1.19")
             library("nms20", "de.steamwar:spigot:1.20")
-            library("nms21", "de.steamwar:spigot:1.21.5")
+            library("nms21", "de.steamwar:spigot:1.21.6")
 
             library("axiom", "de.steamwar:axiompaper:RELEASE")
             library("worldedit12", "de.steamwar:worldedit:1.12")