Improve DynamicRegion

2026-03-22 22:00:34 +01:00
parent 9006a34a3b
commit 60a65a92c2
8 changed files with 568 additions and 57 deletions
@@ -1,5 +1,6 @@
 {
  "region_identifier": "SpawnRegion",
-  "tile_x": 0,
-  "tile_z": 0
+  "tiles": [
+    { "tile_x": 0, "tile_z": 0 }
+  ]
 }
@@ -306,7 +306,7 @@ public class DynamicRegionVisualizer implements SWPlayer.Component, Listener {
        }

        private void place() {
-            DynamicRegion dynamicRegion = DynamicRegionRepository.constructRegion(regionType, UUID.randomUUID(), sourceTile.getMinX(), sourceTile.getMinZ());
+            DynamicRegion dynamicRegion = DynamicRegionRepository.constructRegion(regionType, sourceTile);
            if (dynamicRegion == null) {
                // TODO: Give error to user
                return;
@@ -19,6 +19,10 @@

 package de.steamwar.bausystem.region.dynamic;

+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonPrimitive;
+import com.google.gson.stream.JsonWriter;
 import de.steamwar.bausystem.region.DynamicRegionSystem;
 import de.steamwar.bausystem.region.Point;
 import de.steamwar.bausystem.region.Region;
@@ -29,34 +33,121 @@ import lombok.Getter;
 import lombok.NonNull;
 import org.bukkit.Location;

-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-import java.util.UUID;
+import java.io.IOException;
+import java.util.*;

 public abstract class DynamicRegion implements Region {

    protected final UUID id;
-    protected final int minX;
-    protected final int minZ;

    @Getter
    protected RegionData regionData = null;

-    protected DynamicRegion(UUID id, int minX, int minZ) {
-        this.id = id;
-        this.minX = minX;
-        this.minZ = minZ;
+    /**
+     * This Constructor should be used if a Region is placed newly onto the world!
+     *
+     * @param tile this parameter is never used but forces the implementor to have it as a parameter
+     */
+    protected DynamicRegion(Tile tile) {
+        this.id = UUID.randomUUID();
    }

    /**
-     * This method must be called from the super constructor in a way that everything is already initialized.
+     * This constructor is used for loading the Region from a file
+     *
+     * @param id
+     * @param tileData this parameter is never used but forces the implementor to have it as a parameter
     */
-    protected final void finishInit() {
-        DynamicRegionSystem.INSTANCE.add(this);
+    protected DynamicRegion(UUID id, JsonArray tileData) {
+        this.id = id;
+    }
+
+    private static Tile readTile(JsonObject tileData, String prefix) {
+        JsonPrimitive xData = tileData.getAsJsonPrimitive(prefix + "_x");
+        JsonPrimitive zData = tileData.getAsJsonPrimitive(prefix + "_z");
+        if (xData == null || zData == null) return null;
+        return Tile.fromTile(xData.getAsInt(), zData.getAsInt())
+                .orElse(null);
+    }
+
+    protected static Tile readTile(JsonArray tileData) {
+        if (tileData.size() != 1) return null;
+        try {
+            return readTile(tileData.get(0).getAsJsonObject(), "tile");
+        } catch (IllegalStateException e) {
+            return null;
+        }
+    }
+
+    protected static List<Pair<Tile, Tile>> readQuantizedTiles(JsonArray tileData) {
+        List<Pair<Tile, Tile>> list = new ArrayList<>();
+        for (int i = 0; i < tileData.size(); i++) {
+            JsonObject tileObject;
+            try {
+                tileObject = tileData.get(i).getAsJsonObject();
+            } catch (IllegalArgumentException e) {
+                return Collections.emptyList();
+            }
+
+            Tile tile = readTile(tileObject, "tile");
+            if (tile != null) {
+                list.add(new Pair<>(tile, null));
+                continue;
+            }
+
+            Tile minTile = readTile(tileObject, "min");
+            Tile maxTile = readTile(tileObject, "max");
+            if (minTile == null || maxTile == null) {
+                return Collections.emptyList();
+            }
+            list.add(new Pair<>(minTile, maxTile));
+        }
+        return list;
+    }
+
+    private static void writeTile(JsonWriter writer, Tile tile, String prefix) throws IOException {
+        writer.name(prefix + "_x");
+        writer.value(tile.getTileX());
+        writer.name(prefix + "_z");
+        writer.value(tile.getTileZ());
+    }
+
+    protected static void writeTile(JsonWriter writer, Tile tile) throws IOException {
+        writer.beginObject();
+        writeTile(writer, tile, "tile");
+        writer.endObject();
+    }
+
+    protected static void writeQuantizedTiles(JsonWriter writer, List<Pair<Tile, Tile>> list) throws IOException {
+        for (Pair<Tile, Tile> pair : list) {
+            writer.beginObject();
+            if (pair.getValue() == null) {
+                writeTile(writer, pair.getKey(), "tile");
+            } else {
+                writeTile(writer, pair.getKey(), "min");
+                writeTile(writer, pair.getValue(), "max");
+            }
+            writer.endObject();
+        }
+    }
+
+    /**
+     * This method should be called when a Region is created and needs to be saved afterward
+     */
+    protected final void finishCreate() {
+        finishLoad();
        save();
    }

+    /**
+     * This method should be called when a Region is loaded from file!
+     */
+    protected final void finishLoad() {
+        DynamicRegionSystem.INSTANCE.add(this);
+    }
+
+    public abstract void writeData(JsonWriter writer) throws IOException;
+
    public final void updateNeighbours() {
        List<Pair<PathRegion, NeighbourDirection>> list = DynamicRegionSystem.INSTANCE.getNeighbours(this)
                .filter(data -> data.getKey() instanceof PathRegion)
@@ -19,10 +19,7 @@

 package de.steamwar.bausystem.region.dynamic;

-import com.google.gson.JsonIOException;
-import com.google.gson.JsonObject;
-import com.google.gson.JsonParser;
-import com.google.gson.JsonSyntaxException;
+import com.google.gson.*;
 import com.google.gson.stream.JsonWriter;
 import de.steamwar.bausystem.region.*;
 import de.steamwar.bausystem.region.dynamic.path.PathRegion;
@@ -31,7 +28,6 @@ import lombok.Cleanup;
 import lombok.SneakyThrows;
 import lombok.experimental.UtilityClass;
 import org.bukkit.Bukkit;
-import org.bukkit.Location;

 import java.io.*;
 import java.lang.reflect.Constructor;
@@ -71,8 +67,7 @@ public class DynamicRegionRepository {

    public static final String META_FILE_NAME = "meta.json";
    public static final String META_FILE_REGION_IDENTIFIER = "region_identifier";
-    public static final String META_FILE_TILE_X = "tile_x";
-    public static final String META_FILE_TILE_Z = "tile_z";
+    public static final String META_FILES_TILES = "tiles";

    public static final String FLAG_FILE_NAME = "flags.json";
    public static final String BACKUPS_DIR_NAME = "backups";
@@ -119,12 +114,8 @@ public class DynamicRegionRepository {
                continue;
            }

-            int tileX;
-            int tileZ;
            String identifier;
            try {
-                tileX = metaData.getAsJsonPrimitive(META_FILE_TILE_X).getAsInt();
-                tileZ = metaData.getAsJsonPrimitive(META_FILE_TILE_Z).getAsInt();
                identifier = metaData.getAsJsonPrimitive(META_FILE_REGION_IDENTIFIER).getAsString();
            } catch (ClassCastException | NumberFormatException e) {
                RegionSystem.LOGGER.log(Level.SEVERE, "Failed to read region metadata file (invalid json)");
@@ -138,13 +129,12 @@ public class DynamicRegionRepository {
                continue;
            }

-            Tile tile = Tile.fromTile(tileX, tileZ).orElse(null);
-            if (tile == null) {
+            JsonArray tileData = metaData.getAsJsonArray(META_FILES_TILES);
+            if (tileData == null) {
                RegionSystem.LOGGER.log(Level.SEVERE, "Failed to read region metadata file (tile is no longer in bounds)");
                continue;
            }
-            Location minTileLocation = tile.getMinLocation();
-            constructRegion(regionClass, regionUUID, minTileLocation.getBlockX(), minTileLocation.getBlockZ());
+            constructRegion(regionClass, regionUUID, tileData);
        }

        // Calculate Garden State for all PathRegions
@@ -154,17 +144,35 @@ public class DynamicRegionRepository {
                });
    }

-    public static DynamicRegion constructRegion(Class<? extends DynamicRegion> clazz, UUID uuid, int minX, int minZ) {
+    public static DynamicRegion constructRegion(Class<? extends DynamicRegion> clazz, Tile tile) {
        Constructor<? extends DynamicRegion> regionConstructor;
        try {
-            regionConstructor = clazz.getConstructor(UUID.class, int.class, int.class);
+            regionConstructor = clazz.getConstructor(Tile.class);
+        } catch (NoSuchMethodException e) {
+            RegionSystem.LOGGER.log(Level.SEVERE, "Failed to create region (region constructor not found)");
+            return null;
+        }
+
+        try {
+            return regionConstructor.newInstance(tile);
+        } catch (InstantiationException | IllegalAccessException | IllegalArgumentException |
+                 InvocationTargetException e) {
+            RegionSystem.LOGGER.log(Level.SEVERE, "Failed to create region (invalid data)");
+            return null;
+        }
+    }
+
+    public static DynamicRegion constructRegion(Class<? extends DynamicRegion> clazz, UUID uuid, JsonArray tileData) {
+        Constructor<? extends DynamicRegion> regionConstructor;
+        try {
+            regionConstructor = clazz.getConstructor(UUID.class, JsonArray.class);
        } catch (NoSuchMethodException e) {
            RegionSystem.LOGGER.log(Level.SEVERE, "Failed to read region metadata file (region constructor not found)");
            return null;
        }

        try {
-            return regionConstructor.newInstance(uuid, minX, minZ);
+            return regionConstructor.newInstance(uuid, tileData);
        } catch (InstantiationException | IllegalAccessException | IllegalArgumentException |
                 InvocationTargetException e) {
            RegionSystem.LOGGER.log(Level.SEVERE, "Failed to read region metadata file (invalid data)");
@@ -236,17 +244,18 @@ public class DynamicRegionRepository {
    }

    public static void saveRegion(Region region) {
+        if (!(region.getType().isGlobal() || region instanceof DynamicRegion)) {
+            throw new IllegalArgumentException();
+        }
+
        File regionDirectory = new File(REGION_DATA_FOLDER, region.getID().toString());
        if (!regionDirectory.exists()) {
            regionDirectory.mkdir();
        }

-        if (!region.getType().isGlobal()) {
+        if (region instanceof DynamicRegion dynamicRegion) {
            RegionConstructorData constructorData = DynamicRegionSystem.constructorDataMap.get(region.getClass());
-            Point point = region.getArea().getMinPoint(false);
-            Tile tile = Tile.fromPoint(point).get();
-
-            writeMetaFile(regionDirectory, constructorData, tile);
+            writeMetaFile(regionDirectory, constructorData, dynamicRegion);
        }

        writeFlagsFile(regionDirectory, region.getRegionData());
@@ -261,17 +270,17 @@ public class DynamicRegionRepository {
    }

    @SneakyThrows
-    private static void writeMetaFile(File regionDirectory, RegionConstructorData constructorData, Tile tile) {
+    private static void writeMetaFile(File regionDirectory, RegionConstructorData constructorData, DynamicRegion dynamicRegion) {
        @Cleanup
        JsonWriter jsonWriter = new JsonWriter(new FileWriter(new File(regionDirectory, META_FILE_NAME)));
        jsonWriter.setIndent("  ");
        jsonWriter.beginObject();
        jsonWriter.name(META_FILE_REGION_IDENTIFIER);
        jsonWriter.value(constructorData.identifier());
-        jsonWriter.name(META_FILE_TILE_X);
-        jsonWriter.value(tile.getTileX());
-        jsonWriter.name(META_FILE_TILE_Z);
-        jsonWriter.value(tile.getTileZ());
+        jsonWriter.name(META_FILES_TILES);
+        jsonWriter.beginArray();
+        dynamicRegion.writeData(jsonWriter);
+        jsonWriter.endArray();
        jsonWriter.endObject();
    }

@@ -29,31 +29,44 @@ import org.jetbrains.annotations.Nullable;

 import java.util.*;
 import java.util.function.BiConsumer;
+import java.util.logging.Logger;

 public abstract class MultiTileArea implements Region.Area {

+    private final Logger LOGGER = Logger.getLogger(this.getClass().getTypeName());
+
    protected final Set<Tile> tiles = new HashSet<>();

    protected MultiTileArea() {
    }

-    protected MultiTileArea(Set<Tile> initialTiles) {
-        tiles.addAll(initialTiles);
+    protected MultiTileArea(List<Pair<Tile, Tile>> list) {
+        for (Pair<Tile, Tile> pair : list) {
+            Tile from = pair.getKey();
+            Tile to = pair.getValue();
+            if (to == null) {
+                tiles.add(from);
+                continue;
            }

-    public boolean addTile(Tile tile) {
-        boolean result = tiles.add(tile);
-        quantize();
-        return result;
+            for (int x = from.getTileX(); x <= to.getTileX(); x++) {
+                for (int z = from.getTileZ(); z <= to.getTileZ(); z++) {
+                    tiles.add(Tile.fromTile(x, z).orElseThrow());
+                }
+            }
+        }
+    }
+
+    public void addTile(Tile tile) {
+        tiles.add(tile);
    }

    public boolean removeTile(Tile tile) {
-        boolean result = tiles.remove(tile);
-        quantize();
-        return result;
+        tiles.remove(tile);
+        return tiles.isEmpty();
    }

-    public void quantize() {
+    public List<Pair<Tile, Tile>> quantize() {
        long time = System.currentTimeMillis();
        Quantizer quantizer = new Quantizer(tiles);
        List<Pair<Tile, Tile>> results = new ArrayList<>();
@@ -62,9 +75,9 @@ public abstract class MultiTileArea implements Region.Area {
            if (pair == null) break;
            results.add(pair);
        }
-        // [{"min_tile_x":0,"min_tile_z":0,"max_tile_x":0,"max_tile_z":0}]
        time = System.currentTimeMillis() - time;
-        System.out.println(tiles.size() + ": " + results.size() + " in " + time + "ms");
+        LOGGER.info(tiles.size() + ": " + results.size() + " in " + time + "ms");
+        return results;
    }

    @Override
@@ -0,0 +1,203 @@
+/*
+ *   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.path_special;
+
+import de.steamwar.bausystem.BauSystem;
+import de.steamwar.bausystem.region.DynamicRegionSystem;
+import de.steamwar.bausystem.region.Point;
+import de.steamwar.bausystem.region.dynamic.MultiTileArea;
+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.region.dynamic.path.*;
+import de.steamwar.bausystem.shared.Pair;
+import de.steamwar.bausystem.utils.PasteBuilder;
+import lombok.NonNull;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+
+import java.io.File;
+import java.util.List;
+
+import static de.steamwar.bausystem.region.RegionType.ConnectionType.*;
+
+public class PathArea extends MultiTileArea {
+
+    private static final File PATH_DIR = new File(Bukkit.getWorlds().get(0).getWorldFolder(), "sections/path");
+    private static final File FALLBACK_SCHEM = new File(PATH_DIR, "Fallback.schem");
+
+    private static final VariantSelector CENTER_NORMAL = VariantSelector.Get(new File(PATH_DIR, "center/normal"));
+
+    private static final VariantSelector SIDE_GLOBAL = VariantSelector.Get(new File(PATH_DIR, "side/global"));
+    private static final VariantSelector CORNER_INNER_GLOBAL = VariantSelector.Get(new File(PATH_DIR, "cinner/global"));
+    private static final VariantSelector CORNER_OUTER_GLOBAL = VariantSelector.Get(new File(PATH_DIR, "couter/global"));
+
+    private static final VariantSelector SIDE_WATER = VariantSelector.Get(new File(PATH_DIR, "side/water"));
+    private static final VariantSelector CORNER_INNER_WATER = VariantSelector.Get(new File(PATH_DIR, "cinner/water"));
+    private static final VariantSelector CORNER_OUTER_WATER = VariantSelector.Get(new File(PATH_DIR, "couter/water"));
+
+    private static final VariantSelector SIDE_CLOSED = VariantSelector.Get(new File(PATH_DIR, "side/closed"));
+    private static final VariantSelector CORNER_INNER_CLOSED = VariantSelector.Get(new File(PATH_DIR, "cinner/closed"));
+    private static final VariantSelector CORNER_OUTER_CLOSED = VariantSelector.Get(new File(PATH_DIR, "couter/closed"));
+
+    private static final VariantSelector GARDEN = VariantSelector.Get(new File(PATH_DIR, "garden"));
+    private static final VariantSelector SIDE_GARDEN = VariantSelector.Get(new File(PATH_DIR, "side/garden"));
+    private static final VariantSelector SIDE_GARDEN_CONNECTED = VariantSelector.Get(new File(PATH_DIR, "side/garden_connected"));
+    private static final VariantSelector CORNER_INNER_GARDEN = VariantSelector.Get(new File(PATH_DIR, "cinner/garden"));
+    private static final VariantSelector CORNER_OUTER_GARDEN = VariantSelector.Get(new File(PATH_DIR, "couter/garden"));
+
+    private static final SelectorSide SELECTOR_SIDE = new SelectorSide()
+            .Case(Path, CENTER_NORMAL)
+            .Case(Global, SIDE_GLOBAL)
+            .Case(Water, SIDE_WATER)
+            .Case(Closed, SIDE_CLOSED)
+            .Case(Garden, SIDE_GARDEN_CONNECTED);
+
+    private static final SelectorCorner SELECTOR_CORNER = new SelectorCorner()
+            // Path to Path
+            .Case(Path, Path, Path, CENTER_NORMAL, RotationCorrection.UsingOrdinal)
+            // Path to Global
+            .Case(Path, Global, Global, SIDE_GLOBAL, RotationCorrection.WithCorrection)
+            .Case(Global, Path, Path, SIDE_GLOBAL)
+            .Case(Global, Path, Global, SIDE_GLOBAL)
+            .Case(Path, Global, Path, SIDE_GLOBAL, RotationCorrection.WithCorrection)
+            .Case(Global, Global, Global, CORNER_OUTER_GLOBAL, RotationCorrection.UsingOrdinal)
+            .Case(Global, Global, Path, CORNER_OUTER_GLOBAL, RotationCorrection.UsingOrdinal)
+            .Case(Path, Path, Global, CORNER_INNER_GLOBAL, RotationCorrection.UsingOrdinal)
+            // Path to Water
+            .Case(Path, Water, Water, SIDE_WATER, RotationCorrection.WithCorrection)
+            .Case(Water, Path, Path, SIDE_WATER)
+            .Case(Water, Path, Water, SIDE_WATER)
+            .Case(Path, Water, Path, SIDE_WATER, RotationCorrection.WithCorrection)
+            .Case(Water, Water, Water, CORNER_OUTER_WATER, RotationCorrection.UsingOrdinal)
+            .Case(Water, Water, Path, CORNER_OUTER_WATER, RotationCorrection.UsingOrdinal)
+            .Case(Path, Path, Water, CORNER_INNER_WATER, RotationCorrection.UsingOrdinal)
+            // Path to Closed
+            .Case(Path, Closed, Closed, SIDE_CLOSED, RotationCorrection.WithCorrection)
+            .Case(Closed, Path, Path, SIDE_CLOSED)
+            .Case(Closed, Path, Closed, SIDE_CLOSED)
+            .Case(Path, Closed, Path, SIDE_CLOSED, RotationCorrection.WithCorrection)
+            .Case(Closed, Closed, Closed, CORNER_OUTER_CLOSED, RotationCorrection.UsingOrdinal)
+            .Case(Closed, Closed, Path, CORNER_OUTER_CLOSED, RotationCorrection.UsingOrdinal)
+            .Case(Path, Path, Closed, CORNER_INNER_CLOSED, RotationCorrection.UsingOrdinal)
+            // Path to Garden
+            .Case(Path, Garden, Garden, SIDE_GARDEN, RotationCorrection.WithCorrection)
+            .Case(Garden, Path, Path, SIDE_GARDEN)
+            .Case(Garden, Path, Garden, SIDE_GARDEN)
+            .Case(Path, Garden, Path, SIDE_GARDEN, RotationCorrection.WithCorrection)
+            .Case(Garden, Garden, Garden, CORNER_OUTER_GARDEN, RotationCorrection.UsingOrdinal)
+            .Case(Garden, Garden, Path, CORNER_OUTER_GARDEN, RotationCorrection.UsingOrdinal)
+            .Case(Path, Path, Garden, CORNER_INNER_GARDEN, RotationCorrection.UsingOrdinal)
+            ;
+
+    public PathArea() {
+    }
+
+    public PathArea(List<Pair<Tile, Tile>> list) {
+        super(list);
+    }
+
+    public void reset(@NonNull Tile tile, PathSide side) {
+        if (!tiles.contains(tile)) return;
+        File resetFile = null;
+        VariantSelector selector = SELECTOR_SIDE.Select(tile, side);
+        if (selector != null) resetFile = selector.select().orElse(null);
+        if (selector == null || resetFile == null) {
+            if (!BauSystem.DEV_SERVER) return;
+            resetFile = FALLBACK_SCHEM;
+        }
+
+        Point minPoint = Point.fromLocation(tile.getMinLocation());
+        PasteUtils.paste(resetFile, minPoint.add(side.pasteOffsetX, 0, side.pasteOffsetZ), side.rotate);
+    }
+
+    public void reset(@NonNull Tile tile, PathCorner corner) {
+        if (!tiles.contains(tile)) return;
+        File resetFile = null;
+        Pair<VariantSelector, RotationCorrection> pair = SELECTOR_CORNER.Select(tile, corner);
+        VariantSelector selector = pair.getKey();
+        RotationCorrection rotationCorrection = pair.getValue();
+        if (selector != null) resetFile = selector.select().orElse(null);
+        if (selector == null || resetFile == null) {
+            if (!BauSystem.DEV_SERVER) return;
+            resetFile = FALLBACK_SCHEM;
+            rotationCorrection = RotationCorrection.Unchanged;
+        }
+
+        int rotate = corner.rotate;
+        switch (rotationCorrection) {
+            case Unchanged:
+                break;
+            case UsingOrdinal:
+                rotate = corner.ordinal() * 90;
+                break;
+            case WithCorrection:
+                rotate += corner.rotateCorrection;
+                break;
+        }
+
+        Point minPoint = Point.fromLocation(tile.getMinLocation());
+        PasteUtils.paste(resetFile, minPoint.add(corner.pasteOffsetX, 0, corner.pasteOffsetZ), rotate);
+    }
+
+    @Override
+    public void place(Location location, PasteBuilder pasteBuilder, boolean extension) {
+        Tile tile = Tile.fromLocation(location).orElse(null);
+        if (tile == null || !tiles.contains(tile)) return;
+        Point minPoint = Point.fromLocation(tile.getMinLocation());
+
+        if (isGarden(tile)) {
+            File resetFile = GARDEN.select().orElse(null);
+            if (resetFile != null) {
+                PasteUtils.paste(resetFile, minPoint, 0);
+            }
+            return;
+        }
+
+        File resetFile = CENTER_NORMAL.select().orElse(null);
+        if (resetFile != null) {
+            PasteUtils.paste(resetFile, minPoint.add(7, 0, 7), 0);
+        }
+
+        for (PathSide side : PathSide.values()) {
+            reset(tile, side);
+        }
+
+        for (PathCorner corner : PathCorner.values()) {
+            reset(tile, corner);
+        }
+    }
+
+    private boolean isGarden(Tile tile) {
+        for (int x = -1; x <= 1; x++) {
+            for (int z = -1; z <= 1; z++) {
+                if (x == 0 && z == 0) continue;
+                Tile t = tile.add(x, z).orElse(null);
+                if (t == null) {
+                    return false;
+                }
+                if (!DynamicRegionSystem.INSTANCE.get(t).getType().isPath()) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+}
@@ -0,0 +1,137 @@
+/*
+ *   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.path_special;
+
+import com.google.gson.JsonArray;
+import com.google.gson.stream.JsonWriter;
+import de.steamwar.bausystem.region.*;
+import de.steamwar.bausystem.region.dynamic.*;
+import de.steamwar.bausystem.region.dynamic.path.PathCorner;
+import de.steamwar.bausystem.region.dynamic.path.PathSide;
+import de.steamwar.sql.GameModeConfig;
+import lombok.NonNull;
+import org.bukkit.Location;
+import org.bukkit.Material;
+
+import java.io.IOException;
+import java.util.UUID;
+
+public class PathRegion extends DynamicRegion {
+
+    private final PathArea area;
+
+    public PathRegion(Tile minTile, PathArea area) {
+        super(minTile);
+        this.area = new PathArea();
+        regionData = new PathRegionData(this);
+        finishCreate();
+    }
+
+    public PathRegion(UUID id, JsonArray tileData) {
+        super(id, tileData);
+        area = new PathArea(readQuantizedTiles(tileData));
+        regionData = new PathRegionData(this);
+        finishLoad();
+    }
+
+    @Override
+    public void writeData(JsonWriter writer) throws IOException {
+        writeQuantizedTiles(writer, area.quantize());
+    }
+
+    public void add(Tile tile) {
+        area.addTile(tile);
+        save();
+    }
+
+    public void update(Tile toUpdate, NeighbourDirection toDirection) {
+        for (PathSide side : toDirection.getSideUpdates()) {
+            area.reset(toUpdate, side);
+        }
+        for (PathCorner corner : toDirection.getCornerUpdates()) {
+            area.reset(toUpdate, corner);
+        }
+    }
+
+    @Override
+    public @NonNull RegionType getType() {
+        return RegionType.PATH;
+    }
+
+    @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 save() {
+        DynamicRegionRepository.saveRegion(this);
+    }
+
+    @Override
+    public void load(RegionData regionData) {
+        DynamicRegionRepository.loadRegionData(this, regionData);
+    }
+
+    @Override
+    public void delete(Location location) {
+        Tile tile = Tile.fromLocation(location).orElse(null);
+        if (tile == null) return;
+        boolean delete = area.removeTile(tile);
+        if (delete) {
+            DynamicRegionSystem.INSTANCE.remove(this);
+            DynamicRegionRepository.deleteRegion(this);
+        }
+
+        Point minPoint = Point.fromLocation(tile.getMinLocation());
+        Point maxPoint = Point.fromLocation(tile.getMaxLocation());
+        PasteUtils.reset(minPoint, maxPoint);
+
+        this.updateNeighbours();
+        if (!delete) {
+            save();
+        }
+    }
+}
@@ -0,0 +1,57 @@
+/*
+ *   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.path_special;
+
+import de.steamwar.bausystem.region.RegionData;
+import de.steamwar.bausystem.region.RegionFlagPolicy;
+import de.steamwar.bausystem.region.flags.FireMode;
+import de.steamwar.bausystem.region.flags.Flag;
+import de.steamwar.bausystem.region.flags.ProtectMode;
+import de.steamwar.bausystem.region.flags.TNTMode;
+import de.steamwar.core.Core;
+import lombok.NonNull;
+
+public class PathRegionData extends RegionData {
+
+    public PathRegionData(PathRegion pathRegion) {
+        super(pathRegion);
+    }
+
+    @Override
+    protected void initialize() {
+        flagMap.put(Flag.TNT, TNTMode.DENY);
+        flagMap.put(Flag.FIRE, FireMode.DENY);
+        flagMap.put(Flag.PROTECT, ProtectMode.INACTIVE);
+    }
+
+    @Override
+    public @NonNull <T extends Enum<T> & Flag.Value<T>> RegionFlagPolicy has(@NonNull Flag<T> flag) {
+        if (flag.oneOf(Flag.TNT, Flag.FIRE, Flag.PROTECT)) {
+            return RegionFlagPolicy.READ_ONLY;
+        }
+        if (flag.oneOf(Flag.ITEMS) && Core.getVersion() >= 20) {
+            return RegionFlagPolicy.WRITABLE;
+        }
+        if (flag.oneOf(Flag.FREEZE)) {
+            return RegionFlagPolicy.WRITABLE;
+        }
+        return RegionFlagPolicy.NOT_APPLICABLE;
+    }
+}