Add DryRegion and WetRegion

Add SpecialArea
Add SpecialRegionData
Add RegionData.connectedRegions
Add PasteUtils

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

@@ -23,11 +23,9 @@ import de.steamwar.bausystem.region.flags.Flag;
 import de.steamwar.sql.SchematicNode;
 import lombok.NonNull;
 
-import java.util.ArrayList;
+import java.util.*;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
 import java.util.function.Function;
+import java.util.stream.Stream;
 
 public abstract class RegionData {
 
@@ -52,6 +50,13 @@ public abstract class RegionData {
     protected void initialize() {
     }
 
+    /**
+     * All connected Regions are required to have the same type as their RegionData.
+     */
+    protected Stream<Region> connectedRegions() {
+        return Stream.empty();
+    }
+
     @NonNull
     public abstract <T extends Enum<T> & Flag.Value<T>> RegionFlagPolicy has(@NonNull Flag<T> flag);
 
@@ -60,10 +65,15 @@ public abstract class RegionData {
      */
     public final <T extends Enum<T> & Flag.Value<T>> boolean set(@NonNull Flag<T> flag, @NonNull T value) {
         if (has(flag).isWritable()) {
-            if (flagMap.put(flag, value) != value) {
+            boolean needsSave = flagMap.put(flag, value) != value;
-                store.saveRegion();
+            if (needsSave) store.saveRegion();
-                return true;
+
-            }
+            connectedRegions().forEach(region -> {
+                if (region.getRegionData().flagMap.put(flag, value) != value) {
+                    region.saveRegion();
+                }
+            });
+            return needsSave;
         }
         return false;
     }
@@ -74,13 +84,21 @@ public abstract class RegionData {
     }
 
     public final void clear() {
+        Set<Flag> remove = new HashSet<>();
         for (Flag flag : Flag.getFlags()) {
             if (has(flag).isWritable()) {
                 flagMap.remove(flag);
+                remove.add(flag);
             }
         }
         properties.forEach(property -> property.set(null));
         store.saveRegion();
+
+        connectedRegions().forEach(region -> {
+            region.getRegionData().flagMap.keySet().removeAll(remove);
+            region.getRegionData().properties.forEach(property -> property.set(null));
+            region.saveRegion();
+        });
     }
 
     public final Map<Flag<?>, Flag.Value<?>> getBackedMap() {

BauSystem/BauSystem_RegionDynamic/src/de/steamwar/bausystem/region/dynamic/PasteUtils.java

@@ -0,0 +1,42 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bausystem.region.dynamic;
+
+import com.sk89q.worldedit.bukkit.BukkitAdapter;
+import com.sk89q.worldedit.extent.clipboard.Clipboard;
+import com.sk89q.worldedit.math.BlockVector3;
+import com.sk89q.worldedit.math.transform.AffineTransform;
+import de.steamwar.bausystem.region.Point;
+import de.steamwar.bausystem.utils.FlatteningWrapper;
+import lombok.experimental.UtilityClass;
+import org.bukkit.Bukkit;
+
+import java.io.File;
+
+@UtilityClass
+public class PasteUtils {
+
+    public static void paste(File file, Point minPoint, int rotate) {
+        Clipboard clipboard = FlatteningWrapper.impl.loadSchematic(file);
+        BlockVector3 offset = clipboard.getRegion().getMinimumPoint().subtract(clipboard.getOrigin());
+        BlockVector3 to = minPoint.toBlockVector3().subtract(offset);
+        clipboard.paste(BukkitAdapter.adapt(Bukkit.getWorlds().get(0)), to, false, true, new AffineTransform().rotateY(rotate));
+    }
+}

BauSystem/BauSystem_RegionDynamic/src/de/steamwar/bausystem/region/dynamic/path/PathArea.java

@@ -19,17 +19,13 @@
 
 package de.steamwar.bausystem.region.dynamic.path;
 
-import com.sk89q.worldedit.bukkit.BukkitAdapter;
-import com.sk89q.worldedit.extent.clipboard.Clipboard;
-import com.sk89q.worldedit.math.BlockVector3;
-import com.sk89q.worldedit.math.transform.AffineTransform;
 import de.steamwar.bausystem.region.DynamicRegionSystem;
 import de.steamwar.bausystem.region.Point;
 import de.steamwar.bausystem.region.Region;
 import de.steamwar.bausystem.region.RegionType;
+import de.steamwar.bausystem.region.dynamic.PasteUtils;
 import de.steamwar.bausystem.region.dynamic.Tile;
 import de.steamwar.bausystem.region.dynamic.VariantSelector;
-import de.steamwar.bausystem.utils.FlatteningWrapper;
 import de.steamwar.bausystem.utils.PasteBuilder;
 import lombok.NonNull;
 import lombok.RequiredArgsConstructor;
@@ -120,7 +116,7 @@ public class PathArea implements Region.Area {
 
         File resetFile = CENTER_NORMAL.select(regionIdentifier, 0).orElse(null);
         if (resetFile != null) {
-            paste(resetFile, minPoint.add(7, 0, 7), 0);
+            PasteUtils.paste(resetFile, minPoint.add(7, 0, 7), 0);
         }
 
         for (Side side : Side.values()) {
@@ -141,7 +137,7 @@ public class PathArea implements Region.Area {
                 continue;
             }
 
-            paste(resetFile, minPoint.add(side.pasteOffsetX, 0, side.pasteOffsetZ), side.rotate);
+            PasteUtils.paste(resetFile, minPoint.add(side.pasteOffsetX, 0, side.pasteOffsetZ), side.rotate);
         }
 
         for (Corner corner : Corner.values()) {
@@ -199,7 +195,7 @@ public class PathArea implements Region.Area {
                 continue;
             }
 
-            paste(resetFile, minPoint.add(corner.pasteOffsetX, 0, corner.pasteOffsetZ), rotate);
+            PasteUtils.paste(resetFile, minPoint.add(corner.pasteOffsetX, 0, corner.pasteOffsetZ), rotate);
         }
     }
 
@@ -228,11 +224,4 @@ public class PathArea implements Region.Area {
         }
         return DynamicRegionSystem.INSTANCE.get(tile).getType().getConnectionType();
     }
-
-    private void paste(File file, Point minPoint, int rotate) {
-        Clipboard clipboard = FlatteningWrapper.impl.loadSchematic(file);
-        BlockVector3 offset = clipboard.getRegion().getMinimumPoint().subtract(clipboard.getOrigin());
-        BlockVector3 to = minPoint.toBlockVector3().subtract(offset);
-        clipboard.paste(BukkitAdapter.adapt(Bukkit.getWorlds().get(0)), to, false, true, new AffineTransform().rotateY(rotate));
-    }
 }

BauSystem/BauSystem_RegionDynamic/src/de/steamwar/bausystem/region/dynamic/special/SpecialArea.java

@@ -0,0 +1,84 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bausystem.region.dynamic.special;
+
+import de.steamwar.bausystem.region.Point;
+import de.steamwar.bausystem.region.Region;
+import de.steamwar.bausystem.region.dynamic.DynamicRegion;
+import de.steamwar.bausystem.region.dynamic.PasteUtils;
+import de.steamwar.bausystem.region.dynamic.Tile;
+import de.steamwar.bausystem.region.dynamic.VariantSelector;
+import de.steamwar.bausystem.utils.PasteBuilder;
+import lombok.NonNull;
+import org.bukkit.Bukkit;
+import org.jetbrains.annotations.Nullable;
+
+import java.io.File;
+import java.util.UUID;
+
+public class SpecialArea implements Region.Area {
+
+    public static final File SPECIAL_PATH_DIR = new File(Bukkit.getWorlds().get(0).getWorldFolder(), "sections/special");
+
+    private final UUID regionIdentifier;
+    private final Tile tile;
+    private final Point minPoint;
+    private final Point maxPoint;
+    private final Point copyPoint;
+    private final VariantSelector resetFiles;
+
+    public SpecialArea(Tile tile, DynamicRegion region, VariantSelector resetFiles) {
+        this.regionIdentifier = region.getID();
+        this.tile = tile;
+
+        minPoint = Point.fromLocation(tile.getMinLocation()).setY(WORLD_MIN_Y);
+        maxPoint = Point.fromLocation(tile.getMaxLocation()).setY(WORLD_MAX_Y);
+        copyPoint = Point.fromLocation(tile.getCenterLocation());
+
+        this.resetFiles = resetFiles;
+    }
+
+    @Override
+    public @NonNull Point getMinPoint(boolean extension) {
+        return minPoint;
+    }
+
+    @Override
+    public @NonNull Point getMaxPoint(boolean extension) {
+        return maxPoint;
+    }
+
+    @Override
+    public @NonNull Point getCopyPoint() {
+        return copyPoint;
+    }
+
+    @Override
+    public @Nullable File getResetFile() {
+        return null;
+    }
+
+    @Override
+    public void reset(PasteBuilder pasteBuilder, boolean extension) {
+        File resetFile = resetFiles.select(regionIdentifier, 0).orElse(null);
+        if (resetFile == null) return;
+        PasteUtils.paste(resetFile, minPoint, 0);
+    }
+}

BauSystem/BauSystem_RegionDynamic/src/de/steamwar/bausystem/region/dynamic/special/SpecialRegionData.java

@@ -0,0 +1,63 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bausystem.region.dynamic.special;
+
+import de.steamwar.bausystem.region.DynamicRegionSystem;
+import de.steamwar.bausystem.region.Region;
+import de.steamwar.bausystem.region.RegionData;
+import de.steamwar.bausystem.region.RegionFlagPolicy;
+import de.steamwar.bausystem.region.dynamic.DynamicRegion;
+import de.steamwar.bausystem.region.flags.Flag;
+import de.steamwar.bausystem.region.flags.TNTMode;
+import de.steamwar.core.Core;
+import lombok.NonNull;
+
+import java.util.stream.Stream;
+
+public class SpecialRegionData extends RegionData {
+
+    private final DynamicRegion region;
+
+    public SpecialRegionData(DynamicRegion region) {
+        super(region);
+        this.region = region;
+    }
+
+    @Override
+    protected void initialize() {
+        flagMap.put(Flag.TNT, TNTMode.DENY);
+    }
+
+    @Override
+    protected Stream<Region> connectedRegions() {
+        return DynamicRegionSystem.INSTANCE.getConnectedRegions(region);
+    }
+
+    @Override
+    public @NonNull <T extends Enum<T> & Flag.Value<T>> RegionFlagPolicy has(@NonNull Flag<T> flag) {
+        if (flag.oneOf(Flag.TNT, Flag.FIRE, Flag.FREEZE, Flag.PROTECT, Flag.NO_GRAVITY, Flag.CHANGED)) {
+            return RegionFlagPolicy.WRITABLE;
+        }
+        if (flag.oneOf(Flag.ITEMS) && Core.getVersion() >= 20) {
+            return RegionFlagPolicy.WRITABLE;
+        }
+        return RegionFlagPolicy.NOT_APPLICABLE;
+    }
+}

BauSystem/BauSystem_RegionDynamic/src/de/steamwar/bausystem/region/dynamic/special/dry/DryRegion.java

@@ -0,0 +1,99 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bausystem.region.dynamic.special.dry;
+
+import de.steamwar.bausystem.region.RegionBackups;
+import de.steamwar.bausystem.region.RegionData;
+import de.steamwar.bausystem.region.RegionHistory;
+import de.steamwar.bausystem.region.RegionType;
+import de.steamwar.bausystem.region.dynamic.*;
+import de.steamwar.bausystem.region.dynamic.special.SpecialArea;
+import de.steamwar.bausystem.region.dynamic.special.SpecialRegionData;
+import de.steamwar.sql.GameModeConfig;
+import lombok.NonNull;
+import org.bukkit.Material;
+
+import java.io.File;
+import java.util.UUID;
+
+import static de.steamwar.bausystem.region.dynamic.special.SpecialArea.SPECIAL_PATH_DIR;
+
+@RegionConstructorData(
+        identifier = "special_dry",
+        widthX = Tile.tileSize,
+        widthZ = Tile.tileSize
+)
+public class DryRegion extends DynamicRegion {
+
+    private static final VariantSelector DRY = VariantSelector.Get(new File(SPECIAL_PATH_DIR, "dry"));
+
+    private final SpecialArea area;
+
+    public DryRegion(UUID id, int minX, int minZ) {
+        super(id, minX, minZ);
+        area = new SpecialArea(Tile.fromXZ(minX, minZ).valid().orElseThrow(), this, DRY);
+        regionData = new SpecialRegionData(this);
+    }
+
+    @Override
+    public @NonNull RegionType getType() {
+        return RegionType.DRY_SPECIAL;
+    }
+
+    @Override
+    public @NonNull Area getArea() {
+        return area;
+    }
+
+    @Override
+    public @NonNull Area getBuildArea() {
+        return Area.EMPTY;
+    }
+
+    @Override
+    public @NonNull Area getTestblockArea() {
+        return Area.EMPTY;
+    }
+
+    @Override
+    public @NonNull GameModeConfig<Material, String> getGameModeConfig() {
+        return GameModeConfig.getDefaults();
+    }
+
+    @Override
+    public @NonNull RegionHistory getHistory() {
+        return RegionHistory.EMPTY;
+    }
+
+    @Override
+    public @NonNull RegionBackups getBackups() {
+        return RegionBackups.EMPTY;
+    }
+
+    @Override
+    public void saveRegion() {
+        DynamicRegionRepository.saveRegion(this);
+    }
+
+    @Override
+    public void loadRegion(RegionData regionData) {
+        DynamicRegionRepository.loadRegionData(this, regionData);
+    }
+}

BauSystem/BauSystem_RegionDynamic/src/de/steamwar/bausystem/region/dynamic/special/wet/WetRegion.java

@@ -0,0 +1,99 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2026 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bausystem.region.dynamic.special.wet;
+
+import de.steamwar.bausystem.region.RegionBackups;
+import de.steamwar.bausystem.region.RegionData;
+import de.steamwar.bausystem.region.RegionHistory;
+import de.steamwar.bausystem.region.RegionType;
+import de.steamwar.bausystem.region.dynamic.*;
+import de.steamwar.bausystem.region.dynamic.special.SpecialArea;
+import de.steamwar.bausystem.region.dynamic.special.SpecialRegionData;
+import de.steamwar.sql.GameModeConfig;
+import lombok.NonNull;
+import org.bukkit.Material;
+
+import java.io.File;
+import java.util.UUID;
+
+import static de.steamwar.bausystem.region.dynamic.special.SpecialArea.SPECIAL_PATH_DIR;
+
+@RegionConstructorData(
+        identifier = "special_wet",
+        widthX = Tile.tileSize,
+        widthZ = Tile.tileSize
+)
+public class WetRegion extends DynamicRegion {
+
+    private static final VariantSelector WET = VariantSelector.Get(new File(SPECIAL_PATH_DIR, "wet"));
+
+    private final SpecialArea area;
+
+    public WetRegion(UUID id, int minX, int minZ) {
+        super(id, minX, minZ);
+        area = new SpecialArea(Tile.fromXZ(minX, minZ).valid().orElseThrow(), this, WET);
+        regionData = new SpecialRegionData(this);
+    }
+
+    @Override
+    public @NonNull RegionType getType() {
+        return RegionType.WET_SPECIAL;
+    }
+
+    @Override
+    public @NonNull Area getArea() {
+        return area;
+    }
+
+    @Override
+    public @NonNull Area getBuildArea() {
+        return Area.EMPTY;
+    }
+
+    @Override
+    public @NonNull Area getTestblockArea() {
+        return Area.EMPTY;
+    }
+
+    @Override
+    public @NonNull GameModeConfig<Material, String> getGameModeConfig() {
+        return GameModeConfig.getDefaults();
+    }
+
+    @Override
+    public @NonNull RegionHistory getHistory() {
+        return RegionHistory.EMPTY;
+    }
+
+    @Override
+    public @NonNull RegionBackups getBackups() {
+        return RegionBackups.EMPTY;
+    }
+
+    @Override
+    public void saveRegion() {
+        DynamicRegionRepository.saveRegion(this);
+    }
+
+    @Override
+    public void loadRegion(RegionData regionData) {
+        DynamicRegionRepository.loadRegionData(this, regionData);
+    }
+}