Region filter

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/beta/BukkitChunkHolder.java

@@ -349,11 +349,4 @@ public class BukkitChunkHolder<T extends Future<T>> extends ChunkHolder {
             return null;
         }
     }
-
-    @Override
-    public void set(final Filter filter) {
-        // for each block
-        // filter.applyBlock(block)
-        throw new UnsupportedOperationException("Not implemented");
-    }
 }

worldedit-core/src/main/java/com/boydti/fawe/beta/CharFilterBlock.java

@@ -2,6 +2,8 @@ package com.boydti.fawe.beta;
 
 import com.boydti.fawe.beta.implementation.blocks.CharGetBlocks;
 import com.sk89q.jnbt.CompoundTag;
+import com.sk89q.worldedit.math.BlockVector3;
+import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockTypes;
@@ -40,7 +42,7 @@ public class CharFilterBlock implements FilterBlock {
     }
 
     @Override
-    public final void filter(final IGetBlocks iget, final ISetBlocks iset, final int layer, final Filter filter) {
+    public final void filter(final IGetBlocks iget, final ISetBlocks iset, final int layer, final Filter filter, final @Nullable Region region, BlockVector3 min, BlockVector3 max) {
         this.layer = layer;
         final CharGetBlocks get = (CharGetBlocks) iget;
         if (!get.hasSection(layer)) return;
@@ -54,7 +56,81 @@ public class CharFilterBlock implements FilterBlock {
             setArr = null;
         }
         this.yy = layer << 4;
+        if (region == null) {
+            if (min != null && max != null) {
+                iterate(min, max, layer, filter);
+            } else {
+                iterate(filter);
+            }
+        } else {
+            if (min != null && max != null) {
+                iterate(region, min, max, layer, filter);
+            } else {
+                iterate(region, filter);
+            }
+        }
+    }
 
+    private void iterate(final Region region, final Filter filter) {
+        for (y = 0, index = 0; y < 16; y++) {
+            int absY = yy + y;
+            for (z = 0; z < 16; z++) {
+                int absZ = zz + z;
+                for (x = 0; x < 16; x++, index++) {
+                    int absX = xx + x;
+                    if (region.contains(absX, absY, absZ)) {
+                        filter.applyBlock(this);
+                    }
+                }
+            }
+        }
+    }
+
+    private void iterate(final Region region, BlockVector3 min, BlockVector3 max, int layer, final Filter filter) {
+        int by = Math.max(min.getY(), layer << 4) & 15;
+        int ty = Math.min(max.getY(), 15 + (layer << 4)) & 15;
+        int bx = min.getX();
+        int bz = min.getZ();
+        int tx = max.getX();
+        int tz = max.getZ();
+        for (y = by; y <= ty; y++) {
+            int yIndex = (y << 8);
+            int absY = yy + y;
+            for (z = bz; z <= tz; z++) {
+                int zIndex = yIndex + ((z) << 4);
+                int absZ = zz + z;
+                for (x = bx; x <= tx; x++) {
+                    index = zIndex + x;
+                    int absX = xx + x;
+                    if (region.contains(absX, absY, absZ)) {
+                        filter.applyBlock(this);
+                    }
+
+                }
+            }
+        }
+    }
+
+    private void iterate(BlockVector3 min, BlockVector3 max, int layer, final Filter filter) {
+        int by = Math.max(min.getY(), layer << 4) & 15;
+        int ty = Math.min(max.getY(), 15 + (layer << 4)) & 15;
+        int bx = min.getX();
+        int bz = min.getZ();
+        int tx = max.getX();
+        int tz = max.getZ();
+        for (y = by; y <= ty; y++) {
+            int yIndex = (y << 8);
+            for (z = bz; z <= tz; z++) {
+                int zIndex = yIndex + ((z) << 4);
+                for (x = bx; x <= tx; x++) {
+                    index = zIndex + x;
+                    filter.applyBlock(this);
+                }
+            }
+        }
+    }
+
+    private final void iterate(final Filter filter) {
         for (y = 0, index = 0; y < 16; y++) {
             for (z = 0; z < 16; z++) {
                 for (x = 0; x < 16; x++, index++) {

worldedit-core/src/main/java/com/boydti/fawe/beta/Filter.java

@@ -16,8 +16,8 @@ public interface Filter  {
      * @param cz
      * @return
      */
-    default Filter appliesChunk(final int cx, final int cz) {
+    default boolean appliesChunk(final int cx, final int cz) {
-        return this;
+        return true;
     }
 
     /**
@@ -32,8 +32,8 @@ public interface Filter  {
         return chunk;
     }
 
-    default Filter appliesLayer(IChunk chunk, int layer) {
+    default boolean appliesLayer(IChunk chunk, int layer) {
-        return this;
+        return true;
     }
 
     /**

worldedit-core/src/main/java/com/boydti/fawe/beta/FilterBlock.java

@@ -1,6 +1,7 @@
 package com.boydti.fawe.beta;
 
 import com.sk89q.jnbt.CompoundTag;
+import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
@@ -12,7 +13,7 @@ public interface FilterBlock {
 
     FilterBlock init(int X, int Z, IGetBlocks chunk);
 
-    void filter(IGetBlocks get, ISetBlocks set, int layer, Filter filter, @Nullable Region region);
+    void filter(IGetBlocks get, ISetBlocks set, int layer, Filter filter, @Nullable Region region, BlockVector3 min, BlockVector3 max);
 
     void setOrdinal(int ordinal);
 

worldedit-core/src/main/java/com/boydti/fawe/beta/IChunk.java

@@ -1,10 +1,13 @@
 package com.boydti.fawe.beta;
 
+import com.sk89q.worldedit.math.MutableBlockVector3;
+import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 
+import javax.annotation.Nullable;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
@@ -61,23 +64,25 @@ public interface IChunk<T extends Future<T>> extends Trimable, Callable<T> {
         return;
     }
 
+    /**
+     * Filter
+     * @param filter the filter
+     * @param block The filter block
+     * @param region The region allowed to filter (may be null)
+     * @param unitialized a mutable block vector (buffer)
+     * @param unitialized2 a mutable block vector (buffer)
+     */
+    void filter(Filter filter, FilterBlock block, @Nullable Region region, MutableBlockVector3 unitialized, MutableBlockVector3 unitialized2);
+
     /* set - queues a change */
     boolean setBiome(int x, int y, int z, BiomeType biome);
 
     boolean setBlock(int x, int y, int z, BlockStateHolder block);
 
-    /**
-     * Set using the filter
-     * @param filter
-     */
-    void set(Filter filter);
-
     /* get - from the world */
     BiomeType getBiome(int x, int z);
 
     BlockState getBlock(int x, int y, int z);
 
     BaseBlock getFullBlock(int x, int y, int z);
-
-    void filter(Filter filter, FilterBlock mutable);
 }

worldedit-core/src/main/java/com/boydti/fawe/beta/IDelegateChunk.java

@@ -1,10 +1,13 @@
 package com.boydti.fawe.beta;
 
+import com.sk89q.worldedit.math.MutableBlockVector3;
+import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 
+import javax.annotation.Nullable;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 
@@ -80,8 +83,8 @@ public interface IDelegateChunk<U extends IChunk> extends IChunk {
     }
 
     @Override
-    default void filter(final Filter filter, final FilterBlock mutable) {
+    default void filter(Filter filter, FilterBlock block, @Nullable Region region, MutableBlockVector3 unitialized, MutableBlockVector3 unitialized2) {
-        getParent().filter(filter, mutable);
+        getParent().filter(filter, block, region, unitialized, unitialized2);
     }
 
     @Override
@@ -98,9 +101,4 @@ public interface IDelegateChunk<U extends IChunk> extends IChunk {
         }
         return null;
     }
-
-    @Override
-    default void set(final Filter filter) {
-        getParent().set(filter);
-    }
 }

worldedit-core/src/main/java/com/boydti/fawe/beta/IDelegateFilter.java

@@ -1,33 +1,25 @@
 package com.boydti.fawe.beta;
 
+import com.sk89q.worldedit.regions.Region;
+
+import javax.annotation.Nullable;
+
 public interface IDelegateFilter extends Filter {
     Filter getParent();
 
     @Override
-    default Filter appliesChunk(int cx, int cz) {
+    default boolean appliesChunk(int cx, int cz) {
-        Filter copy = getParent().appliesChunk(cx, cz);
+        return getParent().appliesChunk(cx, cz);
-        if (copy == null) return null;
-        if (copy != getParent()) {
-            return newInstance(copy);
-        } else {
-            return this;
-        }
     }
 
     @Override
-    default IChunk applyChunk(IChunk chunk) {
+    default IChunk applyChunk(IChunk chunk, @Nullable Region region) {
-        return getParent().applyChunk(chunk);
+        return getParent().applyChunk(chunk, region);
     }
 
     @Override
-    default Filter appliesLayer(IChunk chunk, int layer) {
+    default boolean appliesLayer(IChunk chunk, int layer) {
-        Filter copy = getParent().appliesLayer(chunk, layer);
+        return getParent().appliesLayer(chunk, layer);
-        if (copy == null) return null;
-        if (copy != getParent()) {
-            return newInstance(copy);
-        } else {
-            return this;
-        }
     }
 
     @Override

worldedit-core/src/main/java/com/boydti/fawe/beta/RegionFilter.java

@@ -1,37 +0,0 @@
-package com.boydti.fawe.beta;
-
-import com.sk89q.worldedit.regions.Region;
-
-public class RegionFilter extends DelegateFilter {
-    private final Region region;
-
-    public RegionFilter(Filter parent, Region region) {
-        super(parent);
-        this.region = region;
-    }
-
-    @Override
-    public Filter appliesChunk(int cx, int cz) {
-        return getParent().appliesChunk(cx, cz);
-    }
-
-    @Override
-    public Filter appliesLayer(IChunk chunk, int layer) {
-        return getParent().appliesLayer(chunk, layer);
-    }
-
-    @Override
-    public void applyBlock(FilterBlock block) {
-        getParent().applyBlock(block);
-    }
-
-    @Override
-    public void finishChunk(IChunk chunk) {
-        getParent().finishChunk(chunk);
-    }
-
-    @Override
-    public Filter newInstance(Filter other) {
-        return new RegionFilter(other, region);
-    }
-}

worldedit-core/src/main/java/com/boydti/fawe/beta/implementation/QueueHandler.java

@@ -13,6 +13,7 @@ import com.boydti.fawe.util.MemUtil;
 import com.boydti.fawe.util.TaskManager;
 import com.boydti.fawe.wrappers.WorldWrapper;
 import com.sk89q.worldedit.math.BlockVector2;
+import com.sk89q.worldedit.math.MutableBlockVector3;
 import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.world.World;
 
@@ -155,6 +156,9 @@ public abstract class QueueHandler implements Trimable, Runnable {
             tasks[i] = forkJoinPoolPrimary.submit(new Runnable() {
                 @Override
                 public void run() {
+                    MutableBlockVector3 mbv1 = new MutableBlockVector3();
+                    MutableBlockVector3 mbv2 = new MutableBlockVector3();
+
                     final Filter newFilter = filter.fork();
                     // Create a chunk that we will reuse/reset for each operation
                     final IQueueExtent queue = getQueue(world);
@@ -162,7 +166,7 @@ public abstract class QueueHandler implements Trimable, Runnable {
                         FilterBlock block = null;
 
                         while (true) {
-                            // Get the next chunk pos
+                            // Get the next chunk posWeakChunk
                             final int X, Z;
                             synchronized (chunksIter) {
                                 if (!chunksIter.hasNext()) break;
@@ -177,12 +181,12 @@ public abstract class QueueHandler implements Trimable, Runnable {
                             // Initialize
                             chunk.init(queue, X, Z);
 
-                            chunk = newFilter.applyChunk(chunk);
+                            chunk = newFilter.applyChunk(chunk, region);
 
                             if (chunk == null) continue;
 
                             if (block == null) block = queue.initFilterBlock();
-                            chunk.filter(newFilter, block);
+                            chunk.filter(newFilter, block, region, mbv1, mbv2);
 
                             queue.submit(chunk);
                         }

worldedit-core/src/main/java/com/boydti/fawe/beta/implementation/holder/ChunkHolder.java

@@ -10,11 +10,14 @@ import com.boydti.fawe.beta.ISetBlocks;
 import com.boydti.fawe.beta.implementation.SingleThreadQueueExtent;
 import com.boydti.fawe.beta.implementation.WorldChunkCache;
 import com.boydti.fawe.util.MathMan;
+import com.sk89q.worldedit.math.MutableBlockVector3;
+import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 
+import javax.annotation.Nullable;
 import java.util.function.Supplier;
 
 /**
@@ -36,15 +39,44 @@ public abstract class ChunkHolder implements IChunk, Supplier<IGetBlocks> {
     }
 
     @Override
-    public void filter(final Filter filter, FilterBlock block) {
+    public void filter(final Filter filter, FilterBlock block, @Nullable Region region, final MutableBlockVector3 min, final MutableBlockVector3 max) {
         final IGetBlocks get = getOrCreateGet();
         final ISetBlocks set = getOrCreateSet();
-        block = block.init(X, Z, get);
+        try {
-        for (int layer = 0; layer < 16; layer++) {
+            if (region != null) {
-            if (!get.hasSection(layer) || !filter.appliesLayer(this, layer)) continue;
+                switch (region.getChunkBounds(X, Z, min, max)) {
-            block.filter(get, set, layer, filter);
+                    case NONE:
+                        System.out.println("NONE");
+                        return;
+                    case FULL:
+                        if (min.getY() == 0 && max.getY() == 255) {
+                            break;
+                        }
+                    case PARTIAL:
+                        region = null;
+                    case CHECKED:
+                    default: {
+                        int minLayer = min.getY() >> 4;
+                        int maxLayer = max.getY() >> 4;
+                        System.out.println("Layers " + minLayer + " | " + maxLayer);
+                        block = block.init(X, Z, get);
+                        for (int layer = minLayer; layer < maxLayer; layer++) {
+                            if (!get.hasSection(layer) || !filter.appliesLayer(this, layer)) continue;
+                            block.filter(get, set, layer, filter, region, min, max);
+                        }
+                        return;
+                    }
+                }
+            }
+
+            block = block.init(X, Z, get);
+            for (int layer = 0; layer < 16; layer++) {
+                if (!get.hasSection(layer) || !filter.appliesLayer(this, layer)) continue;
+                block.filter(get, set, layer, filter, region, null, null);
+            }
+        } finally {
+            filter.finishChunk(this);
         }
-        filter.finishChunk(this);
     }
 
     @Override

worldedit-core/src/main/java/com/sk89q/worldedit/regions/CuboidRegion.java

@@ -41,6 +41,7 @@ import java.util.Set;
 
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
+import static com.sk89q.worldedit.regions.Region.Contains.*;
 
 /**
  * An axis-aligned cuboid. It can be defined using two corners of the cuboid.
@@ -627,5 +628,36 @@ public class CuboidRegion extends AbstractRegion implements FlatRegion {
         return new CuboidRegion(origin.subtract(size), origin.add(size));
     }
 
+    @Override
+    public Contains getChunkBounds(int X, int Z, MutableBlockVector3 min, MutableBlockVector3 max) {
+        int minChunkX = minX >> 4;
+        if (minChunkX <= X) {
+            int maxChunkX = maxX >> 4;
+            if (maxChunkX >= X) {
+                int minChunkZ = minZ >> 4;
+                if (minChunkZ <= X) {
+                    int maxChunkZ = maxZ >> 4;
+                    if (maxChunkZ >= Z) {
+                        int cx1 = X << 4;
+                        int cx2 = cx1 + 15;
+                        int cz1 = Z << 4;
+                        int cz2 = cz1 + 15;
 
+                        int bx = Math.max(cx1, minX);
+                        int bz = Math.max(cz1, minZ);
+                        int tx = Math.min(cx2, maxX);
+                        int tz = Math.min(cz2, maxZ);
+
+                        min.setComponents(bx & 15, minY, bz & 15);
+                        max.setComponents(tx & 15, maxY, tz & 15);
+                        if (min.getX() == 0 && min.getZ() == 0 && max.getX() == 15 && max.getZ() == 15) {
+                            return FULL;
+                        }
+                        return PARTIAL;
+                    }
+                }
+            }
+        }
+        return NONE;
+    }
 }

worldedit-core/src/main/java/com/sk89q/worldedit/regions/Region.java

@@ -21,6 +21,7 @@ package com.sk89q.worldedit.regions;
 
 import com.sk89q.worldedit.math.BlockVector2;
 import com.sk89q.worldedit.math.BlockVector3;
+import com.sk89q.worldedit.math.MutableBlockVector3;
 import com.sk89q.worldedit.math.Vector3;
 import com.sk89q.worldedit.world.World;
 
@@ -28,6 +29,9 @@ import javax.annotation.Nullable;
 import java.util.List;
 import java.util.Set;
 
+import static com.sk89q.worldedit.regions.Region.Contains.CHECKED;
+import static com.sk89q.worldedit.regions.Region.Contains.NONE;
+
 /**
  * Represents a physical shape.
  */
@@ -178,4 +182,33 @@ public interface Region extends Iterable<BlockVector3>, Cloneable {
      * @return the points.
      */
     List<BlockVector2> polygonize(int maxPoints);
+
+    default Contains getChunkBounds(int X, int Z, MutableBlockVector3 min, MutableBlockVector3 max) {
+        BlockVector3 pos1 = getMinimumPoint();
+        BlockVector3 pos2 = getMaximumPoint();
+        int cx1 = X << 4;
+        int cx2 = cx1 + 15;
+        int cz1 = Z << 4;
+        int cz2 = cz1 + 15;
+
+        int bx = Math.max(cx1, pos1.getX());
+        int bz = Math.max(cz1, pos1.getZ());
+        int tx = Math.min(cx2, pos2.getX());
+        int tz = Math.min(cz2, pos2.getZ());
+
+        min.setComponents(bx & 15, pos1.getY(), bz & 15);
+        max.setComponents(tx & 15, pos2.getY(), tz & 15);
+
+        if (bx > cx2 || bz > cz2 || tx < cx1 || tz < cz1) {
+            return NONE;
+        }
+        return CHECKED;
+    }
+
+    enum Contains {
+        FULL,
+        PARTIAL,
+        CHECKED,
+        NONE;
+    }
 }

worldedit-core/src/main/java/com/sk89q/worldedit/regions/RegionIntersection.java

@@ -21,9 +21,14 @@ package com.sk89q.worldedit.regions;
 
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
+import static com.sk89q.worldedit.regions.Region.Contains.CHECKED;
+import static com.sk89q.worldedit.regions.Region.Contains.FULL;
+import static com.sk89q.worldedit.regions.Region.Contains.NONE;
+import static com.sk89q.worldedit.regions.Region.Contains.PARTIAL;
 
 import com.google.common.collect.Iterators;
 import com.sk89q.worldedit.math.BlockVector3;
+import com.sk89q.worldedit.math.MutableBlockVector3;
 import com.sk89q.worldedit.world.World;
 
 import java.util.ArrayList;

worldedit-core/src/main/java/com/sk89q/worldedit/regions/TransformRegion.java

@@ -1,191 +0,0 @@
-/*
- * WorldEdit, a Minecraft world manipulation toolkit
- * Copyright (C) sk89q <http://www.sk89q.com>
- * Copyright (C) WorldEdit team and contributors
- *
- * This program is free software: you can redistribute it and/or modify it
- * under the terms of the GNU Lesser 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 Lesser General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.sk89q.worldedit.regions;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-
-import com.sk89q.worldedit.math.BlockVector2;
-import com.sk89q.worldedit.math.BlockVector3;
-import com.sk89q.worldedit.math.Vector3;
-import com.sk89q.worldedit.math.transform.Identity;
-import com.sk89q.worldedit.math.transform.Transform;
-import com.sk89q.worldedit.world.World;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-
-import javax.annotation.Nullable;
-
-/**
- * Transforms another region according to a provided vector {@code Transform}.
- *
- * @see Transform
- */
-public class TransformRegion extends AbstractRegion {
-
-    private final Region region;
-    private Transform transform = new Identity();
-
-    /**
-     * Create a new instance.
-     *
-     * @param region the region
-     * @param transform the transform
-     */
-    public TransformRegion(Region region, Transform transform) {
-        this(null, region, transform);
-    }
-
-    /**
-     * Create a new instance.
-     *
-     * @param world the world, which may be null
-     * @param region the region
-     * @param transform the transform
-     */
-    public TransformRegion(@Nullable World world, Region region, Transform transform) {
-        super(world);
-        checkNotNull(region);
-        checkNotNull(transform);
-        this.region = region;
-        this.transform = transform;
-    }
-
-    /**
-     * Get the untransformed, base region.
-     *
-     * @return the base region
-     */
-    public Region getRegion() {
-        return region;
-    }
-
-    /**
-     * Get the transform that is applied.
-     *
-     * @return the transform
-     */
-    public Transform getTransform() {
-        return transform;
-    }
-
-    /**
-     * Set the transform that is applied.
-     *
-     * @param transform the transform
-     */
-    public void setTransform(Transform transform) {
-        checkNotNull(transform);
-        this.transform = transform;
-    }
-
-    @Override
-    public BlockVector3 getMinimumPoint() {
-        return transform.apply(region.getMinimumPoint().toVector3()).toBlockPoint();
-    }
-
-    @Override
-    public BlockVector3 getMaximumPoint() {
-        return transform.apply(region.getMaximumPoint().toVector3()).toBlockPoint();
-    }
-
-    @Override
-    public Vector3 getCenter() {
-        return transform.apply(region.getCenter());
-    }
-
-    @Override
-    public int getArea() {
-        return region.getArea(); // Cannot transform this
-    }
-
-    @Override
-    public int getWidth() {
-        return getMaximumPoint().subtract(getMinimumPoint()).getBlockX() + 1;
-    }
-
-    @Override
-    public int getHeight() {
-        return getMaximumPoint().subtract(getMinimumPoint()).getBlockY() + 1;
-    }
-
-    @Override
-    public int getLength() {
-        return getMaximumPoint().subtract(getMinimumPoint()).getBlockZ() + 1;
-    }
-
-    @Override
-    public void expand(BlockVector3... changes) throws RegionOperationException {
-        throw new RegionOperationException("Can't expand a TransformedRegion");
-    }
-
-    @Override
-    public void contract(BlockVector3... changes) throws RegionOperationException {
-        throw new RegionOperationException("Can't contract a TransformedRegion");
-    }
-
-    @Override
-    public void shift(BlockVector3 change) throws RegionOperationException {
-        throw new RegionOperationException("Can't change a TransformedRegion");
-    }
-
-    @Override
-    public boolean contains(BlockVector3 position) {
-        return region.contains(transform.inverse().apply(position.toVector3()).toBlockPoint());
-    }
-
-    @Override
-    public List<BlockVector2> polygonize(int maxPoints) {
-        List<BlockVector2> origPoints = region.polygonize(maxPoints);
-        List<BlockVector2> transformedPoints = new ArrayList<>();
-        for (BlockVector2 vector : origPoints) {
-            transformedPoints.add(transform.apply(vector.toVector3(0)).toVector2().toBlockPoint());
-        }
-        return transformedPoints;
-    }
-
-    @Override
-    public Iterator<BlockVector3> iterator() {
-        final Iterator<BlockVector3> it = region.iterator();
-
-        return new Iterator<BlockVector3>() {
-            @Override
-            public boolean hasNext() {
-                return it.hasNext();
-            }
-
-            @Override
-            public BlockVector3 next() {
-                BlockVector3 next = it.next();
-                if (next != null) {
-                    return transform.apply(next.toVector3()).toBlockPoint();
-                } else {
-                    return null;
-                }
-            }
-
-            @Override
-            public void remove() {
-                it.remove();
-            }
-        };
-    }
-}

worldedit-core/src/main/java/com/sk89q/worldedit/session/request/RequestSelection.java

@@ -23,6 +23,7 @@ import com.sk89q.worldedit.IncompleteRegionException;
 import com.sk89q.worldedit.LocalSession;
 import com.sk89q.worldedit.math.BlockVector2;
 import com.sk89q.worldedit.math.BlockVector3;
+import com.sk89q.worldedit.math.MutableBlockVector3;
 import com.sk89q.worldedit.math.Vector3;
 import com.sk89q.worldedit.regions.NullRegion;
 import com.sk89q.worldedit.regions.Region;
@@ -147,6 +148,11 @@ public class RequestSelection implements Region {
         return getRegion().polygonize(maxPoints);
     }
 
+    @Override
+    public Contains getChunkBounds(int X, int Z, MutableBlockVector3 min, MutableBlockVector3 max) {
+        return getRegion().getChunkBounds(X, Z, min, max);
+    }
+
     @Override
     public Iterator<BlockVector3> iterator() {
         return getRegion().iterator();