More refactoring of GenericChunk and pals

- Genericized TileReference
- Unified template arguments

src/main/java/ru/windcorp/progressia/client/world/ChunkRender.java

@@ -27,6 +27,7 @@ import ru.windcorp.progressia.client.graphics.model.ShapeRenderHelper;
 import ru.windcorp.progressia.client.world.block.BlockRender;
 import ru.windcorp.progressia.client.world.block.BlockRenderRegistry;
 import ru.windcorp.progressia.client.world.tile.TileRender;
+import ru.windcorp.progressia.client.world.tile.TileRenderReference;
 import ru.windcorp.progressia.client.world.tile.TileRenderRegistry;
 import ru.windcorp.progressia.client.world.tile.TileRenderStack;
 import ru.windcorp.progressia.common.world.ChunkData;
@@ -34,10 +35,11 @@ import ru.windcorp.progressia.common.world.generic.GenericChunk;
 import ru.windcorp.progressia.common.world.rels.AbsFace;
 import ru.windcorp.progressia.common.world.rels.BlockFace;
 import ru.windcorp.progressia.common.world.rels.RelFace;
+import ru.windcorp.progressia.common.world.tile.TileDataReference;
 import ru.windcorp.progressia.common.world.tile.TileDataStack;
 
 public class ChunkRender
-	implements GenericChunk<ChunkRender, BlockRender, TileRender, TileRenderStack> {
+	implements GenericChunk<BlockRender, TileRender, TileRenderStack, TileRenderReference, ChunkRender> {
 
 	private final WorldRender world;
 	private final ChunkData data;
@@ -108,6 +110,28 @@ public class ChunkRender
 	}
 
 	private class TileRenderStackImpl extends TileRenderStack {
+		private class TileRenderReferenceImpl implements TileRenderReference {
+			private final TileDataReference parent;
+
+			public TileRenderReferenceImpl(TileDataReference parent) {
+				this.parent = parent;
+			}
+
+			@Override
+			public TileRender get() {
+				return TileRenderRegistry.getInstance().get(parent.get().getId());
+			}
+
+			@Override
+			public int getIndex() {
+				return parent.getIndex();
+			}
+
+			@Override
+			public TileRenderStack getStack() {
+				return TileRenderStackImpl.this;
+			}
+		}
 
 		private final TileDataStack parent;
 
@@ -130,6 +154,21 @@ public class ChunkRender
 			return parent.getFace();
 		}
 		
+		@Override
+		public TileRenderReference getReference(int index) {
+			return new TileRenderReferenceImpl(parent.getReference(index));
+		}
+
+		@Override
+		public int getIndexByTag(int tag) {
+			return parent.getIndexByTag(tag);
+		}
+
+		@Override
+		public int getTagByIndex(int index) {
+			return parent.getTagByIndex(index);
+		}
+
 		@Override
 		public TileRender get(int index) {
 			return TileRenderRegistry.getInstance().get(parent.get(index).getId());

src/main/java/ru/windcorp/progressia/client/world/WorldRender.java

@@ -34,6 +34,7 @@ import ru.windcorp.progressia.client.world.block.BlockRender;
 import ru.windcorp.progressia.client.world.entity.EntityRenderRegistry;
 import ru.windcorp.progressia.client.world.entity.EntityRenderable;
 import ru.windcorp.progressia.client.world.tile.TileRender;
+import ru.windcorp.progressia.client.world.tile.TileRenderReference;
 import ru.windcorp.progressia.client.world.tile.TileRenderStack;
 import ru.windcorp.progressia.common.util.VectorUtil;
 import ru.windcorp.progressia.common.util.Vectors;
@@ -47,7 +48,7 @@ import ru.windcorp.progressia.common.world.generic.ChunkSets;
 import ru.windcorp.progressia.common.world.generic.GenericWorld;
 
 public class WorldRender
-	implements GenericWorld<BlockRender, TileRender, TileRenderStack, ChunkRender, EntityRenderable> {
+	implements GenericWorld<BlockRender, TileRender, TileRenderStack, TileRenderReference, ChunkRender, EntityRenderable> {
 
 	private final WorldData data;
 	private final Client client;

src/main/java/ru/windcorp/progressia/client/world/tile/TileRenderReference.java

@@ -0,0 +1,27 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.client.world.tile;
+
+import ru.windcorp.progressia.client.world.ChunkRender;
+import ru.windcorp.progressia.client.world.block.BlockRender;
+import ru.windcorp.progressia.common.world.generic.GenericTileReference;
+
+public interface TileRenderReference
+	extends GenericTileReference<BlockRender, TileRender, TileRenderStack, TileRenderReference, ChunkRender> {
+
+}

src/main/java/ru/windcorp/progressia/client/world/tile/TileRenderStack.java

@@ -19,11 +19,12 @@
 package ru.windcorp.progressia.client.world.tile;
 
 import ru.windcorp.progressia.client.world.ChunkRender;
+import ru.windcorp.progressia.client.world.block.BlockRender;
 import ru.windcorp.progressia.common.world.generic.GenericTileStack;
 import ru.windcorp.progressia.common.world.tile.TileDataStack;
 
 public abstract class TileRenderStack
-	extends GenericTileStack<TileRenderStack, TileRender, ChunkRender> {
+	extends GenericTileStack<BlockRender, TileRender, TileRenderStack, TileRenderReference, ChunkRender> {
 
 	public abstract TileDataStack getData();
 

src/main/java/ru/windcorp/progressia/common/world/ChunkData.java

@@ -36,12 +36,12 @@ import ru.windcorp.progressia.common.world.rels.AbsFace;
 import ru.windcorp.progressia.common.world.rels.BlockFace;
 import ru.windcorp.progressia.common.world.rels.RelFace;
 import ru.windcorp.progressia.common.world.tile.TileData;
+import ru.windcorp.progressia.common.world.tile.TileDataReference;
 import ru.windcorp.progressia.common.world.tile.TileDataStack;
-import ru.windcorp.progressia.common.world.tile.TileReference;
 import ru.windcorp.progressia.common.world.tile.TileStackIsFullException;
 
 public class ChunkData
-	implements GenericWritableChunk<ChunkData, BlockData, TileData, TileDataStack> {
+	implements GenericWritableChunk<BlockData, TileData, TileDataStack, TileDataReference, ChunkData> {
 
 	public static final int BLOCKS_PER_CHUNK = Coordinates.CHUNK_SIZE;
 	public static final int CHUNK_RADIUS = BLOCKS_PER_CHUNK / 2;
@@ -219,10 +219,10 @@ public class ChunkData
 	 * @author javapony
 	 */
 	private class TileDataStackImpl extends TileDataStack {
-		private class TileReferenceImpl implements TileReference {
+		private class TileDataReferenceImpl implements TileDataReference {
 			private int index;
 
-			public TileReferenceImpl(int index) {
+			public TileDataReferenceImpl(int index) {
 				this.index = index;
 			}
 
@@ -264,7 +264,7 @@ public class ChunkData
 		private final TileData[] tiles = new TileData[TILES_PER_FACE];
 		private int size = 0;
 
-		private final TileReferenceImpl[] references = new TileReferenceImpl[tiles.length];
+		private final TileDataReferenceImpl[] references = new TileDataReferenceImpl[tiles.length];
 		private final int[] indicesByTag = new int[tiles.length];
 		private final int[] tagsByIndex = new int[tiles.length];
 
@@ -437,11 +437,11 @@ public class ChunkData
 		}
 
 		@Override
-		public TileReference getReference(int index) {
+		public TileDataReference getReference(int index) {
 			checkIndex(index, false);
 
 			if (references[index] == null) {
-				references[index] = new TileReferenceImpl(index);
+				references[index] = new TileDataReferenceImpl(index);
 			}
 
 			return references[index];
@@ -500,7 +500,7 @@ public class ChunkData
 					throw new AssertionError("get(index) is null");
 
 				if (references[index] != null) {
-					TileReference ref = getReference(index);
+					TileDataReference ref = getReference(index);
 					if (ref == null)
 						throw new AssertionError("references[index] is not null but getReference(index) is");
 					if (!ref.isValid())

src/main/java/ru/windcorp/progressia/common/world/WorldData.java

@@ -38,9 +38,10 @@ import ru.windcorp.progressia.common.world.generic.GenericWorld;
 import ru.windcorp.progressia.common.world.generic.LongBasedChunkMap;
 import ru.windcorp.progressia.common.world.tile.TileData;
 import ru.windcorp.progressia.common.world.tile.TileDataStack;
+import ru.windcorp.progressia.common.world.tile.TileDataReference;
 
 public class WorldData
-	implements GenericWorld<BlockData, TileData, TileDataStack, ChunkData, EntityData> {
+	implements GenericWorld<BlockData, TileData, TileDataStack, TileDataReference, ChunkData, EntityData> {
 
 	private final ChunkMap<ChunkData> chunksByPos = new LongBasedChunkMap<>(
 		TCollections.synchronizedMap(new TLongObjectHashMap<>())

src/main/java/ru/windcorp/progressia/common/world/generic/ChunkMap.java

@@ -77,27 +77,27 @@ public interface ChunkMap<V> {
 	// TODO implement (int, int, int) and GenericChunk versions of all of the
 	// above
 
-	default boolean containsChunk(GenericChunk<?, ?, ?, ?> chunk) {
+	default boolean containsChunk(GenericChunk<?, ?, ?, ?, ?> chunk) {
 		return containsKey(chunk.getPosition());
 	}
 
-	default V get(GenericChunk<?, ?, ?, ?> chunk) {
+	default V get(GenericChunk<?, ?, ?, ?, ?> chunk) {
 		return get(chunk.getPosition());
 	}
 
-	default V put(GenericChunk<?, ?, ?, ?> chunk, V obj) {
+	default V put(GenericChunk<?, ?, ?, ?, ?> chunk, V obj) {
 		return put(chunk.getPosition(), obj);
 	}
 
-	default V remove(GenericChunk<?, ?, ?, ?> chunk) {
+	default V remove(GenericChunk<?, ?, ?, ?, ?> chunk) {
 		return remove(chunk.getPosition());
 	}
 
-	default V getOrDefault(GenericChunk<?, ?, ?, ?> chunk, V def) {
+	default V getOrDefault(GenericChunk<?, ?, ?, ?, ?> chunk, V def) {
 		return containsChunk(chunk) ? def : get(chunk);
 	}
 
-	default <C extends GenericChunk<C, ?, ?, ?>> V compute(
+	default <C extends GenericChunk<?, ?, ?, ?, C>> V compute(
 		C chunk,
 		BiFunction<? super C, ? super V, ? extends V> remappingFunction
 	) {
@@ -128,8 +128,8 @@ public interface ChunkMap<V> {
 
 	void forEach(BiConsumer<? super Vec3i, ? super V> action);
 
-	default <C extends GenericChunk<C, ?, ?, ?>> void forEachIn(
+	default <C extends GenericChunk<?, ?, ?, ?, C>> void forEachIn(
-		GenericWorld<?, ?, ?, C, ?> world,
+		GenericWorld<?, ?, ?, ?, C, ?> world,
 		BiConsumer<? super C, ? super V> action
 	) {
 		forEach((pos, value) -> {

src/main/java/ru/windcorp/progressia/common/world/generic/ChunkMaps.java

@@ -174,42 +174,42 @@ public class ChunkMaps {
 		}
 
 		@Override
-		public boolean containsChunk(GenericChunk<?, ?, ?, ?> chunk) {
+		public boolean containsChunk(GenericChunk<?, ?, ?, ?, ?> chunk) {
 			synchronized (mutex) {
 				return parent.containsChunk(chunk);
 			}
 		}
 
 		@Override
-		public V get(GenericChunk<?, ?, ?, ?> chunk) {
+		public V get(GenericChunk<?, ?, ?, ?, ?> chunk) {
 			synchronized (mutex) {
 				return parent.get(chunk);
 			}
 		}
 
 		@Override
-		public V put(GenericChunk<?, ?, ?, ?> chunk, V obj) {
+		public V put(GenericChunk<?, ?, ?, ?, ?> chunk, V obj) {
 			synchronized (mutex) {
 				return parent.put(chunk, obj);
 			}
 		}
 
 		@Override
-		public V remove(GenericChunk<?, ?, ?, ?> chunk) {
+		public V remove(GenericChunk<?, ?, ?, ?, ?> chunk) {
 			synchronized (mutex) {
 				return parent.remove(chunk);
 			}
 		}
 
 		@Override
-		public V getOrDefault(GenericChunk<?, ?, ?, ?> chunk, V def) {
+		public V getOrDefault(GenericChunk<?, ?, ?, ?, ?> chunk, V def) {
 			synchronized (mutex) {
 				return parent.getOrDefault(chunk, def);
 			}
 		}
 
 		@Override
-		public <C extends GenericChunk<C, ?, ?, ?>> V compute(
+		public <C extends GenericChunk<?, ?, ?, ?, C>> V compute(
 			C chunk,
 			BiFunction<? super C, ? super V, ? extends V> remappingFunction
 		) {
@@ -247,8 +247,8 @@ public class ChunkMaps {
 		}
 
 		@Override
-		public <C extends GenericChunk<C, ?, ?, ?>> void forEachIn(
+		public <C extends GenericChunk<?, ?, ?, ?, C>> void forEachIn(
-			GenericWorld<?, ?, ?, C, ?> world,
+			GenericWorld<?, ?, ?, ?, C, ?> world,
 			BiConsumer<? super C, ? super V> action
 		) {
 			synchronized (mutex) {

src/main/java/ru/windcorp/progressia/common/world/generic/ChunkSet.java

@@ -75,20 +75,20 @@ public interface ChunkSet extends Iterable<Vec3i> {
 		return result;
 	}
 
-	default boolean contains(GenericChunk<?, ?, ?, ?> chunk) {
+	default boolean contains(GenericChunk<?, ?, ?, ?, ?> chunk) {
 		return contains(chunk.getPosition());
 	}
 
-	default boolean add(GenericChunk<?, ?, ?, ?> chunk) {
+	default boolean add(GenericChunk<?, ?, ?, ?, ?> chunk) {
 		return add(chunk.getPosition());
 	}
 
-	default boolean remove(GenericChunk<?, ?, ?, ?> chunk) {
+	default boolean remove(GenericChunk<?, ?, ?, ?, ?> chunk) {
 		return remove(chunk.getPosition());
 	}
 
-	default <C extends GenericChunk<C, ?, ?, ?>> void forEachIn(
+	default <C extends GenericChunk<?, ?, ?, ?, C>> void forEachIn(
-		GenericWorld<?, ?, ?, C, ?> world,
+		GenericWorld<?, ?, ?, ?, C, ?> world,
 		Consumer<? super C> action
 	) {
 		forEach(position -> {
@@ -207,7 +207,7 @@ public interface ChunkSet extends Iterable<Vec3i> {
 		}
 	}
 
-	default boolean containsAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?>> chunks) {
+	default boolean containsAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?, ?>> chunks) {
 		boolean[] hasMissing = new boolean[] { false };
 
 		chunks.forEach(c -> {
@@ -219,7 +219,7 @@ public interface ChunkSet extends Iterable<Vec3i> {
 		return hasMissing[0];
 	}
 
-	default boolean containsAnyChunks(Iterable<? extends GenericChunk<?, ?, ?, ?>> chunks) {
+	default boolean containsAnyChunks(Iterable<? extends GenericChunk<?, ?, ?, ?, ?>> chunks) {
 		boolean[] hasPresent = new boolean[] { false };
 
 		chunks.forEach(c -> {
@@ -231,11 +231,11 @@ public interface ChunkSet extends Iterable<Vec3i> {
 		return hasPresent[0];
 	}
 
-	default void addAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?>> chunks) {
+	default void addAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?, ?>> chunks) {
 		chunks.forEach(this::add);
 	}
 
-	default void removeAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?>> chunks) {
+	default void removeAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?, ?>> chunks) {
 		chunks.forEach(this::remove);
 	}
 

src/main/java/ru/windcorp/progressia/common/world/generic/ChunkSets.java

@@ -198,29 +198,29 @@ public class ChunkSets {
 		}
 
 		@Override
-		public boolean contains(GenericChunk<?, ?, ?, ?> chunk) {
+		public boolean contains(GenericChunk<?, ?, ?, ?, ?> chunk) {
 			synchronized (mutex) {
 				return parent.contains(chunk);
 			}
 		}
 
 		@Override
-		public boolean add(GenericChunk<?, ?, ?, ?> chunk) {
+		public boolean add(GenericChunk<?, ?, ?, ?, ?> chunk) {
 			synchronized (mutex) {
 				return parent.add(chunk);
 			}
 		}
 
 		@Override
-		public boolean remove(GenericChunk<?, ?, ?, ?> chunk) {
+		public boolean remove(GenericChunk<?, ?, ?, ?, ?> chunk) {
 			synchronized (mutex) {
 				return parent.remove(chunk);
 			}
 		}
 
 		@Override
-		public <C extends GenericChunk<C, ?, ?, ?>> void forEachIn(
+		public <C extends GenericChunk<?, ?, ?, ?, C>> void forEachIn(
-			GenericWorld<?, ?, ?, C, ?> world,
+			GenericWorld<?, ?, ?, ?, C, ?> world,
 			Consumer<? super C> action
 		) {
 			synchronized (mutex) {
@@ -320,28 +320,28 @@ public class ChunkSets {
 		}
 
 		@Override
-		public boolean containsAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?>> chunks) {
+		public boolean containsAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?, ?>> chunks) {
 			synchronized (mutex) {
 				return parent.containsAllChunks(chunks);
 			}
 		}
 
 		@Override
-		public boolean containsAnyChunks(Iterable<? extends GenericChunk<?, ?, ?, ?>> chunks) {
+		public boolean containsAnyChunks(Iterable<? extends GenericChunk<?, ?, ?, ?, ?>> chunks) {
 			synchronized (mutex) {
 				return parent.containsAnyChunks(chunks);
 			}
 		}
 
 		@Override
-		public void addAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?>> chunks) {
+		public void addAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?, ?>> chunks) {
 			synchronized (mutex) {
 				parent.addAllChunks(chunks);
 			}
 		}
 
 		@Override
-		public void removeAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?>> chunks) {
+		public void removeAllChunks(Iterable<? extends GenericChunk<?, ?, ?, ?, ?>> chunks) {
 			synchronized (mutex) {
 				parent.removeAllChunks(chunks);
 			}

src/main/java/ru/windcorp/progressia/common/world/generic/GenericChunk.java

@@ -56,7 +56,15 @@ import ru.windcorp.progressia.common.world.rels.BlockFace;
  * @param <TS>   tile stack type
  * @author javapony
  */
-public interface GenericChunk<Self extends GenericChunk<Self, B, T, TS>, B extends GenericBlock, T extends GenericTile, TS extends GenericTileStack<TS, T, Self>> {
+// @formatter:off
+public interface GenericChunk<
+	B  extends GenericBlock,
+	T  extends GenericTile,
+	TS extends GenericTileStack     <B, T, TS, TR, C>,
+	TR extends GenericTileReference <B, T, TS, TR, C>,
+	C  extends GenericChunk         <B, T, TS, TR, C>
+> {
+// @formatter:on
 
 	/**
 	 * The count of blocks in a side of a chunk. This is guaranteed to be a

src/main/java/ru/windcorp/progressia/common/world/generic/GenericTileReference.java

@@ -0,0 +1,41 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package ru.windcorp.progressia.common.world.generic;
+
+// @formatter:off
+public interface GenericTileReference<
+	B  extends GenericBlock,
+	T  extends GenericTile,
+	TS extends GenericTileStack     <B, T, TS, TR, C>,
+	TR extends GenericTileReference <B, T, TS, TR, C>,
+	C  extends GenericChunk         <B, T, TS, TR, C>
+> {
+// @formatter:on
+
+	T get();
+
+	int getIndex();
+
+	TS getStack();
+
+	default boolean isValid() {
+		return get() != null;
+	}
+
+}

src/main/java/ru/windcorp/progressia/common/world/generic/GenericTileStack.java

@@ -27,9 +27,15 @@ import glm.vec._3.i.Vec3i;
 import ru.windcorp.progressia.common.world.Coordinates;
 import ru.windcorp.progressia.common.world.rels.RelFace;
 
-public abstract class GenericTileStack<Self extends GenericTileStack<Self, T, C>, T extends GenericTile, C extends GenericChunk<C, ?, T, Self>>
+// @formatter:off
-	extends AbstractList<T>
+public abstract class GenericTileStack<
-	implements RandomAccess {
+	B  extends GenericBlock,
+	T  extends GenericTile,
+	TS extends GenericTileStack     <B, T, TS, TR, C>,
+	TR extends GenericTileReference <B, T, TS, TR, C>,
+	C  extends GenericChunk         <B, T, TS, TR, C>
+> extends AbstractList<T> implements RandomAccess {
+// @formatter:on
 
 	public static interface TSConsumer<T> {
 		void accept(int layer, T tile);
@@ -43,6 +49,12 @@ public abstract class GenericTileStack<Self extends GenericTileStack<Self, T, C>
 
 	public abstract RelFace getFace();
 
+	public abstract TR getReference(int index);
+
+	public abstract int getIndexByTag(int tag);
+
+	public abstract int getTagByIndex(int index);
+
 	public Vec3i getBlockInWorld(Vec3i output) {
 		// This is safe
 		return Coordinates.getInWorld(getChunk().getPosition(), getBlockInChunk(output), output);
@@ -105,4 +117,8 @@ public abstract class GenericTileStack<Self extends GenericTileStack<Self, T, C>
 		return findClosest(id) != null;
 	}
 
+	public B getHost() {
+		return getChunk().getBlock(getBlockInChunk(null));
+	}
+
 }

src/main/java/ru/windcorp/progressia/common/world/generic/GenericWorld.java

@@ -29,7 +29,16 @@ import ru.windcorp.progressia.common.world.Coordinates;
 import ru.windcorp.progressia.common.world.rels.AbsFace;
 import ru.windcorp.progressia.common.world.rels.BlockFace;
 
-public interface GenericWorld<B extends GenericBlock, T extends GenericTile, TS extends GenericTileStack<TS, T, C>, C extends GenericChunk<C, B, T, TS>, E extends GenericEntity> {
+// @formatter:off
+public interface GenericWorld<
+	B  extends GenericBlock,
+	T  extends GenericTile,
+	TS extends GenericTileStack     <B, T, TS, TR, C>,
+	TR extends GenericTileReference <B, T, TS, TR, C>,
+	C  extends GenericChunk         <B, T, TS, TR, C>,
+	E  extends GenericEntity
+> {
+// @formatter:on	
 
 	Collection<C> getChunks();
 

src/main/java/ru/windcorp/progressia/common/world/generic/GenericWritableChunk.java

@@ -19,12 +19,18 @@ package ru.windcorp.progressia.common.world.generic;
 
 import glm.vec._3.i.Vec3i;
 
-import ru.windcorp.progressia.common.world.block.BlockData;
+// @formatter:off
+public interface GenericWritableChunk<
+	B  extends GenericBlock,
+	T  extends GenericTile,
+	TS extends GenericWritableTileStack <B, T, TS, TR, C>,
+	TR extends GenericTileReference     <B, T, TS, TR, C>,
+	C  extends GenericWritableChunk     <B, T, TS, TR, C>
+>
+	extends GenericChunk<B, T, TS, TR, C> {
+// @formatter:on
 
-public interface GenericWritableChunk<Self extends GenericWritableChunk<Self, B, T, TS>, B extends GenericBlock, T extends GenericTile, TS extends GenericTileStack<TS, T, Self>>
+	void setBlock(Vec3i posInChunk, B block, boolean notify);
-	extends GenericChunk<Self, B, T, TS> {
-
-	void setBlock(Vec3i posInChunk, BlockData block, boolean notify);
 
 	void setBlockRel(Vec3i relativeBlockInChunk, B block, boolean notify);
 

src/main/java/ru/windcorp/progressia/common/world/generic/GenericWritableTileStack.java

@@ -0,0 +1,160 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package ru.windcorp.progressia.common.world.generic;
+
+// @formatter:off
+public abstract class GenericWritableTileStack<
+	B  extends GenericBlock,
+	T  extends GenericTile,
+	TS extends GenericWritableTileStack<B, T, TS, TR, C>,
+	TR extends GenericTileReference<B, T, TS, TR, C>,
+	C  extends GenericWritableChunk<B, T, TS, TR, C>
+>
+	extends GenericTileStack<B, T, TS, TR, C> {
+// @formatter:on
+
+	/**
+	 * Inserts the specified tile at the specified position in this stack.
+	 * Shifts the tile currently at that position (if any) and any tiles above
+	 * to
+	 * the top (adds one to their indices).
+	 * 
+	 * @param index index at which the specified tile is to be inserted
+	 * @param tile  tile to be inserted
+	 * @throws TileStackIsFullException if this stack is {@linkplain #isFull()
+	 *                                  full}
+	 */
+	/*
+	 * Impl note: AbstractList provides a useless implementation of this method,
+	 * make sure to override it in subclass
+	 */
+	@Override
+	public abstract void add(int index, T tile);
+
+	/**
+	 * Adds the specified tile at the end of this stack assigning it the
+	 * provided tag.
+	 * This method is useful for copying stacks when preserving tags is
+	 * necessary.
+	 * 
+	 * @param tile the tile to add
+	 * @param tag  the tag to assign the new tile
+	 * @throws IllegalArgumentException if this stack already contains a tile
+	 *                                  with the
+	 *                                  provided tag
+	 */
+	public abstract void load(T tile, int tag);
+
+	/**
+	 * Replaces the tile at the specified position in this stack with the
+	 * specified tile.
+	 * 
+	 * @param index index of the tile to replace
+	 * @param tile  tile to be stored at the specified position
+	 * @return the tile previously at the specified position
+	 */
+	/*
+	 * Impl note: AbstractList provides a useless implementation of this method,
+	 * make sure to override it in subclass
+	 */
+	@Override
+	public abstract T set(int index, T tile);
+
+	/**
+	 * Removes the tile at the specified position in this list. Shifts any
+	 * subsequent tiles
+	 * to the left (subtracts one from their indices). Returns the tile that was
+	 * removed
+	 * from the list.
+	 * 
+	 * @param index the index of the tile to be removed
+	 * @return the tile previously at the specified position
+	 */
+	/*
+	 * Impl note: AbstractList provides a useless implementation of this method,
+	 * make sure to override it in subclass
+	 */
+	@Override
+	public abstract T remove(int index);
+
+	/*
+	 * Aliases and overloads
+	 */
+
+	public void addClosest(T tile) {
+		add(0, tile);
+	}
+
+	public void addFarthest(T tile) {
+		add(size(), tile);
+	}
+
+	/**
+	 * Attempts to {@link #add(int, TileData) add} the provided {@code tile}
+	 * at {@code index}. If the stack is {@linkplain #isFull() full}, does
+	 * nothing.
+	 * 
+	 * @param index the index to insert the tile at
+	 * @param tile  the tile to try to add
+	 * @return {@code true} iff this stack has changed
+	 */
+	public boolean offer(int index, T tile) {
+		if (isFull())
+			return false;
+		add(index, tile);
+		return true;
+	}
+
+	public boolean offerClosest(T tile) {
+		return offer(0, tile);
+	}
+
+	public boolean offerFarthest(T tile) {
+		return offer(size(), tile);
+	}
+
+	public T removeClosest() {
+		return remove(0);
+	}
+
+	public T removeFarthest() {
+		return remove(size() - 1);
+	}
+
+	public T poll(int index) {
+		if (size() <= index)
+			return null;
+		return remove(index);
+	}
+
+	public T pollClosest() {
+		return poll(0);
+	}
+
+	public T pollFarthest() {
+		return poll(size() - 1);
+	}
+
+	@Override
+	public boolean add(T tile) {
+		addFarthest(tile);
+		return true;
+	}
+
+}

src/main/java/ru/windcorp/progressia/common/world/generic/LongBasedChunkSet.java

@@ -45,7 +45,7 @@ public class LongBasedChunkSet implements ChunkSet {
 		addAll(copyFrom);
 	}
 
-	public LongBasedChunkSet(TLongSet impl, GenericWorld<?, ?, ?, ?, ?> copyFrom) {
+	public LongBasedChunkSet(TLongSet impl, GenericWorld<?, ?, ?, ?, ?, ?> copyFrom) {
 		this(impl);
 		addAllChunks(copyFrom.getChunks());
 	}

src/main/java/ru/windcorp/progressia/common/world/generic/Util.java

@@ -35,7 +35,7 @@ class Util {
 		return hits;
 	}
 	
-	public static boolean testBiC(Vec3i blockInWorld, GenericChunk<?, ?, ?, ?> chunk, Predicate<Vec3i> test) {
+	public static boolean testBiC(Vec3i blockInWorld, GenericChunk<?, ?, ?, ?, ?> chunk, Predicate<Vec3i> test) {
 		Vec3i v = Vectors.grab3i();
 
 		v = Coordinates.getInWorld(chunk.getPosition(), Vectors.ZERO_3i, v);

src/main/java/ru/windcorp/progressia/common/world/tile/TileDataReference.java

@@ -18,16 +18,10 @@
  
 package ru.windcorp.progressia.common.world.tile;
 
-public interface TileReference {
+import ru.windcorp.progressia.common.world.ChunkData;
+import ru.windcorp.progressia.common.world.block.BlockData;
+import ru.windcorp.progressia.common.world.generic.GenericTileReference;
 
-	TileData get();
+public interface TileDataReference extends GenericTileReference<BlockData, TileData, TileDataStack, TileDataReference, ChunkData> {
-
-	int getIndex();
-
-	TileDataStack getStack();
-
-	default boolean isValid() {
-		return get() != null;
-	}
 
 }

src/main/java/ru/windcorp/progressia/common/world/tile/TileDataStack.java

@@ -20,147 +20,9 @@ package ru.windcorp.progressia.common.world.tile;
 
 import ru.windcorp.progressia.common.world.ChunkData;
 import ru.windcorp.progressia.common.world.block.BlockData;
-import ru.windcorp.progressia.common.world.generic.GenericTileStack;
+import ru.windcorp.progressia.common.world.generic.GenericWritableTileStack;
 
 public abstract class TileDataStack
-	extends GenericTileStack<TileDataStack, TileData, ChunkData> {
+	extends GenericWritableTileStack<BlockData, TileData, TileDataStack, TileDataReference, ChunkData> {
-
-	/**
-	 * Inserts the specified tile at the specified position in this stack.
-	 * Shifts the tile currently at that position (if any) and any tiles above
-	 * to
-	 * the top (adds one to their indices).
-	 * 
-	 * @param index index at which the specified tile is to be inserted
-	 * @param tile  tile to be inserted
-	 * @throws TileStackIsFullException if this stack is {@linkplain #isFull()
-	 *                                  full}
-	 */
-	/*
-	 * Impl note: AbstractList provides a useless implementation of this method,
-	 * make sure to override it in subclass
-	 */
-	@Override
-	public abstract void add(int index, TileData tile);
-
-	/**
-	 * Adds the specified tile at the end of this stack assigning it the
-	 * provided tag.
-	 * This method is useful for copying stacks when preserving tags is
-	 * necessary.
-	 * 
-	 * @param tile the tile to add
-	 * @param tag  the tag to assign the new tile
-	 * @throws IllegalArgumentException if this stack already contains a tile
-	 *                                  with the
-	 *                                  provided tag
-	 */
-	public abstract void load(TileData tile, int tag);
-
-	/**
-	 * Replaces the tile at the specified position in this stack with the
-	 * specified tile.
-	 * 
-	 * @param index index of the tile to replace
-	 * @param tile  tile to be stored at the specified position
-	 * @return the tile previously at the specified position
-	 */
-	/*
-	 * Impl note: AbstractList provides a useless implementation of this method,
-	 * make sure to override it in subclass
-	 */
-	@Override
-	public abstract TileData set(int index, TileData tile);
-
-	/**
-	 * Removes the tile at the specified position in this list. Shifts any
-	 * subsequent tiles
-	 * to the left (subtracts one from their indices). Returns the tile that was
-	 * removed
-	 * from the list.
-	 * 
-	 * @param index the index of the tile to be removed
-	 * @return the tile previously at the specified position
-	 */
-	/*
-	 * Impl note: AbstractList provides a useless implementation of this method,
-	 * make sure to override it in subclass
-	 */
-	@Override
-	public abstract TileData remove(int index);
-
-	public abstract TileReference getReference(int index);
-
-	public abstract int getIndexByTag(int tag);
-
-	public abstract int getTagByIndex(int index);
-
-	/*
-	 * Aliases and overloads
-	 */
-
-	public void addClosest(TileData tile) {
-		add(0, tile);
-	}
-
-	public void addFarthest(TileData tile) {
-		add(size(), tile);
-	}
-
-	/**
-	 * Attempts to {@link #add(int, TileData) add} the provided {@code tile}
-	 * at {@code index}. If the stack is {@linkplain #isFull() full}, does
-	 * nothing.
-	 * 
-	 * @param index the index to insert the tile at
-	 * @param tile  the tile to try to add
-	 * @return {@code true} iff this stack has changed
-	 */
-	public boolean offer(int index, TileData tile) {
-		if (isFull())
-			return false;
-		add(index, tile);
-		return true;
-	}
-
-	public boolean offerClosest(TileData tile) {
-		return offer(0, tile);
-	}
-
-	public boolean offerFarthest(TileData tile) {
-		return offer(size(), tile);
-	}
-
-	public TileData removeClosest() {
-		return remove(0);
-	}
-
-	public TileData removeFarthest() {
-		return remove(size() - 1);
-	}
-
-	public TileData poll(int index) {
-		if (size() <= index)
-			return null;
-		return remove(index);
-	}
-
-	public TileData pollClosest() {
-		return poll(0);
-	}
-
-	public TileData pollFarthest() {
-		return poll(size() - 1);
-	}
-
-	@Override
-	public boolean add(TileData tile) {
-		addFarthest(tile);
-		return true;
-	}
-
-	public BlockData getHost() {
-		return getChunk().getBlock(getBlockInChunk(null));
-	}
 
 }

src/main/java/ru/windcorp/progressia/server/world/ChunkLogic.java

@@ -33,7 +33,7 @@ import ru.windcorp.progressia.common.world.rels.AbsFace;
 import ru.windcorp.progressia.common.world.rels.BlockFace;
 import ru.windcorp.progressia.common.world.rels.RelFace;
 import ru.windcorp.progressia.common.world.tile.TileDataStack;
-import ru.windcorp.progressia.common.world.tile.TileReference;
+import ru.windcorp.progressia.common.world.tile.TileDataReference;
 import ru.windcorp.progressia.server.world.block.BlockLogic;
 import ru.windcorp.progressia.server.world.block.BlockLogicRegistry;
 import ru.windcorp.progressia.server.world.block.TickableBlock;
@@ -41,16 +41,17 @@ import ru.windcorp.progressia.server.world.tasks.TickChunk;
 import ru.windcorp.progressia.server.world.ticking.TickingPolicy;
 import ru.windcorp.progressia.server.world.tile.TickableTile;
 import ru.windcorp.progressia.server.world.tile.TileLogic;
+import ru.windcorp.progressia.server.world.tile.TileLogicReference;
 import ru.windcorp.progressia.server.world.tile.TileLogicRegistry;
 import ru.windcorp.progressia.server.world.tile.TileLogicStack;
 
-public class ChunkLogic implements GenericChunk<ChunkLogic, BlockLogic, TileLogic, TileLogicStack> {
+public class ChunkLogic implements GenericChunk<BlockLogic, TileLogic, TileLogicStack, TileLogicReference, ChunkLogic> {
 
 	private final WorldLogic world;
 	private final ChunkData data;
 
 	private final Collection<Vec3i> tickingBlocks = new ArrayList<>();
-	private final Collection<TileReference> tickingTiles = new ArrayList<>();
+	private final Collection<TileDataReference> tickingTiles = new ArrayList<>();
 
 	private final TickChunk tickTask = new TickChunk(this);
 
@@ -124,7 +125,7 @@ public class ChunkLogic implements GenericChunk<ChunkLogic, BlockLogic, TileLogi
 		});
 	}
 
-	public void forEachTickingTile(BiConsumer<TileReference, TileLogic> action) {
+	public void forEachTickingTile(BiConsumer<TileDataReference, TileLogic> action) {
 		tickingTiles.forEach(ref -> {
 			action.accept(
 				ref,
@@ -138,6 +139,28 @@ public class ChunkLogic implements GenericChunk<ChunkLogic, BlockLogic, TileLogi
 	}
 
 	private class TileLogicStackImpl extends TileLogicStack {
+		private class TileLogicReferenceImpl implements TileLogicReference {
+			private final TileDataReference parent;
+
+			public TileLogicReferenceImpl (TileDataReference parent) {
+				this.parent = parent;
+			}
+
+			@Override
+			public TileLogic get() {
+				return TileLogicRegistry.getInstance().get(parent.get().getId());
+			}
+
+			@Override
+			public int getIndex() {
+				return parent.getIndex();
+			}
+
+			@Override
+			public TileLogicStack getStack() {
+				return TileLogicStackImpl.this;
+			}
+		}
 		
 		private final TileDataStack parent;
 
@@ -160,6 +183,21 @@ public class ChunkLogic implements GenericChunk<ChunkLogic, BlockLogic, TileLogi
 			return parent.getFace();
 		}
 		
+		@Override
+		public TileLogicReference getReference(int index) {
+			return new TileLogicReferenceImpl(parent.getReference(index));
+		}
+
+		@Override
+		public int getIndexByTag(int tag) {
+			return parent.getIndexByTag(tag);
+		}
+
+		@Override
+		public int getTagByIndex(int index) {
+			return parent.getTagByIndex(index);
+		}
+
 		@Override
 		public TileLogic get(int index) {
 			return TileLogicRegistry.getInstance().get(parent.get(index).getId());

src/main/java/ru/windcorp/progressia/server/world/TickContextMutable.java

@@ -29,7 +29,7 @@ import ru.windcorp.progressia.common.world.generic.GenericTileStack;
 import ru.windcorp.progressia.common.world.rels.BlockFace;
 import ru.windcorp.progressia.common.world.rels.RelFace;
 import ru.windcorp.progressia.common.world.tile.TileDataStack;
-import ru.windcorp.progressia.common.world.tile.TileReference;
+import ru.windcorp.progressia.common.world.tile.TileDataReference;
 import ru.windcorp.progressia.server.Server;
 import ru.windcorp.progressia.server.world.block.BlockTickContext;
 import ru.windcorp.progressia.server.world.tile.TSTickContext;
@@ -109,14 +109,14 @@ public abstract class TickContextMutable implements BlockTickContext, TSTickCont
 
 			Block withBlock(Vec3i blockInWorld);
 
-			TileStack withTS(GenericTileStack<?, ?, ?> tileStack);
+			TileStack withTS(GenericTileStack<?, ?, ?, ?, ?> tileStack);
 
 			default Builder.Chunk withChunk(ChunkData chunk) {
 				Objects.requireNonNull(chunk, "chunk");
 				return withChunk(chunk.getPosition());
 			}
 
-			default TileTickContext withTile(TileReference ref) {
+			default TileTickContext withTile(TileDataReference ref) {
 				Objects.requireNonNull(ref, "ref");
 				return withTS(ref.getStack()).withLayer(ref.getIndex());
 			}
@@ -259,7 +259,7 @@ public abstract class TickContextMutable implements BlockTickContext, TSTickCont
 		}
 
 		@Override
-		public TileStack withTS(GenericTileStack<?, ?, ?> tileStack) {
+		public TileStack withTS(GenericTileStack<?, ?, ?, ?, ?> tileStack) {
 			Objects.requireNonNull(tileStack, "tileStack");
 
 			return withBlock(

src/main/java/ru/windcorp/progressia/server/world/WorldLogic.java

@@ -37,10 +37,11 @@ import ru.windcorp.progressia.server.world.generation.WorldGenerator;
 import ru.windcorp.progressia.server.world.tasks.TickEntitiesTask;
 import ru.windcorp.progressia.server.world.ticking.Evaluation;
 import ru.windcorp.progressia.server.world.tile.TileLogic;
+import ru.windcorp.progressia.server.world.tile.TileLogicReference;
 import ru.windcorp.progressia.server.world.tile.TileLogicStack;
 
 public class WorldLogic
-	implements GenericWorld<BlockLogic, TileLogic, TileLogicStack, ChunkLogic, EntityData
+	implements GenericWorld<BlockLogic, TileLogic, TileLogicStack, TileLogicReference, ChunkLogic, EntityData
 	// not using EntityLogic because it is stateless
 > {
 

src/main/java/ru/windcorp/progressia/server/world/tile/TileLogicReference.java

@@ -0,0 +1,27 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.server.world.tile;
+
+import ru.windcorp.progressia.common.world.generic.GenericTileReference;
+import ru.windcorp.progressia.server.world.ChunkLogic;
+import ru.windcorp.progressia.server.world.block.BlockLogic;
+
+public interface TileLogicReference
+	extends GenericTileReference<BlockLogic, TileLogic, TileLogicStack, TileLogicReference, ChunkLogic> {
+
+}

src/main/java/ru/windcorp/progressia/server/world/tile/TileLogicStack.java

@@ -21,9 +21,10 @@ package ru.windcorp.progressia.server.world.tile;
 import ru.windcorp.progressia.common.world.generic.GenericTileStack;
 import ru.windcorp.progressia.common.world.tile.TileDataStack;
 import ru.windcorp.progressia.server.world.ChunkLogic;
+import ru.windcorp.progressia.server.world.block.BlockLogic;
 
 public abstract class TileLogicStack
-	extends GenericTileStack<TileLogicStack, TileLogic, ChunkLogic> {
+	extends GenericTileStack<BlockLogic, TileLogic, TileLogicStack, TileLogicReference, ChunkLogic> {
 
 	public abstract TileDataStack getData();
 

src/main/java/ru/windcorp/progressia/server/world/tile/TileTickContext.java

@@ -20,7 +20,7 @@ package ru.windcorp.progressia.server.world.tile;
 
 import ru.windcorp.progressia.common.world.tile.TileData;
 import ru.windcorp.progressia.common.world.tile.TileDataStack;
-import ru.windcorp.progressia.common.world.tile.TileReference;
+import ru.windcorp.progressia.common.world.tile.TileDataReference;
 
 public interface TileTickContext extends TSTickContext {
 
@@ -53,7 +53,7 @@ public interface TileTickContext extends TSTickContext {
 		return stack.get(getLayer());
 	}
 
-	default TileReference getReference() {
+	default TileDataReference getReference() {
 		return getTDS().getReference(getLayer());
 	}