Added generic implementations of of Chunk and World classes

Also fixed a whole bunch of missing Override annotations

src/main/java/ru/windcorp/progressia/client/graphics/backend/VertexBufferObject.java

@@ -192,6 +192,7 @@ public class VertexBufferObject implements OpenGLDeletable {
 		return usage;
 	}
 	
+	@Override
 	public int getHandle() {
 		return handle;
 	}

src/main/java/ru/windcorp/progressia/client/graphics/backend/shaders/Shader.java

@@ -91,6 +91,7 @@ public class Shader implements OpenGLDeletable {
 		);
 	}
 
+	@Override
 	public int getHandle() {
 		return handle;
 	}

src/main/java/ru/windcorp/progressia/client/graphics/gui/GUILayer.java

@@ -24,6 +24,7 @@ import ru.windcorp.progressia.client.graphics.input.bus.Input;
 public abstract class GUILayer extends AssembledFlatLayer {
 	
 	private final Component root = new Component("Root") {
+		@Override
 		protected void handleReassemblyRequest() {
 			GUILayer.this.invalidate();
 		}

src/main/java/ru/windcorp/progressia/client/graphics/model/ShapeRenderProgram.java

@@ -264,6 +264,7 @@ public class ShapeRenderProgram extends Program {
 		
 		private final List<Vertex> vertices = new ArrayList<>();
 		
+		@Override
 		public VertexBuilder addVertex(
 				float x, float y, float z,
 				float r, float g, float b,
@@ -278,6 +279,7 @@ public class ShapeRenderProgram extends Program {
 			return this;
 		}
 		
+		@Override
 		public VertexBuilder addVertex(
 				Vec3 position,
 				Vec3 colorMultiplier,
@@ -292,6 +294,7 @@ public class ShapeRenderProgram extends Program {
 			return this;
 		}
 		
+		@Override
 		public ByteBuffer assemble() {
 			ByteBuffer result = BufferUtils.createByteBuffer(
 					DEFAULT_BYTES_PER_VERTEX * vertices.size()

src/main/java/ru/windcorp/progressia/client/localization/MutableString.java

@@ -55,6 +55,7 @@ public abstract class MutableString {
 		return data;
 	}
 
+	@Override
 	public String toString() {
 		return get();
 	}

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

@@ -18,8 +18,11 @@
 package ru.windcorp.progressia.client.world;
 
 import java.util.Collection;
+import java.util.Collections;
 import java.util.List;
+import java.util.Map;
 import java.util.Objects;
+import java.util.WeakHashMap;
 import java.util.stream.Collectors;
 
 import glm.mat._4.Mat4;
@@ -38,11 +41,20 @@ import ru.windcorp.progressia.client.world.cro.ChunkRenderOptimizerSupplier;
 import ru.windcorp.progressia.client.world.cro.ChunkRenderOptimizers;
 import ru.windcorp.progressia.client.world.tile.TileRender;
 import ru.windcorp.progressia.client.world.tile.TileRenderRegistry;
+import ru.windcorp.progressia.client.world.tile.TileRenderStack;
 import ru.windcorp.progressia.common.world.ChunkData;
 import ru.windcorp.progressia.common.world.block.BlockFace;
+import ru.windcorp.progressia.common.world.generic.GenericChunk;
 import ru.windcorp.progressia.common.world.tile.TileData;
+import ru.windcorp.progressia.common.world.tile.TileDataStack;
 
-public class ChunkRender {
+public class ChunkRender
+implements GenericChunk<
+	ChunkRender,
+	BlockRender,
+	TileRender,
+	TileRenderStack
+> {
 
 	private final WorldRender world;
 	private final ChunkData data;
@@ -50,11 +62,43 @@ public class ChunkRender {
 	private boolean needsUpdate;
 	private Model model = null;
 	
+	private final Map<TileDataStack, TileRenderStackImpl> tileRenderLists =
+			Collections.synchronizedMap(new WeakHashMap<>());
+	
 	public ChunkRender(WorldRender world, ChunkData data) {
 		this.world = world;
 		this.data = data;
 	}
 	
+	@Override
+	public Vec3i getPosition() {
+		return getData().getPosition();
+	}
+	
+	@Override
+	public BlockRender getBlock(Vec3i posInChunk) {
+		return BlockRenderRegistry.getInstance().get(
+				getData().getBlock(posInChunk).getId()
+		);
+	}
+	
+	@Override
+	public TileRenderStack getTiles(Vec3i blockInChunk, BlockFace face) {
+		return getTileStackWrapper(getData().getTiles(blockInChunk, face));
+	}
+	
+	@Override
+	public boolean hasTiles(Vec3i blockInChunk, BlockFace face) {
+		return getData().hasTiles(blockInChunk, face);
+	}
+	
+	private TileRenderStack getTileStackWrapper(TileDataStack tileDataList) {
+		return tileRenderLists.computeIfAbsent(
+				tileDataList,
+				TileRenderStackImpl::new
+		);
+	}
+	
 	public WorldRender getWorld() {
 		return world;
 	}
@@ -71,12 +115,6 @@ public class ChunkRender {
 		return needsUpdate;
 	}
 	
-	public BlockRender getBlock(Vec3i posInChunk) {
-		return BlockRenderRegistry.getInstance().get(
-				getData().getBlock(posInChunk).getId()
-		);
-	}
-	
 	public void render(ShapeRenderHelper renderer) {
 		if (model == null || needsUpdate()) {
 			buildModel();
@@ -233,4 +271,44 @@ public class ChunkRender {
 		);
 	}
 	
+	private class TileRenderStackImpl extends TileRenderStack {
+		
+		private final TileDataStack parent;
+
+		public TileRenderStackImpl(TileDataStack parent) {
+			this.parent = parent;
+		}
+
+		@Override
+		public Vec3i getBlockInChunk(Vec3i output) {
+			return parent.getBlockInChunk(output);
+		}
+
+		@Override
+		public ChunkRender getChunk() {
+			return ChunkRender.this;
+		}
+
+		@Override
+		public BlockFace getFace() {
+			return parent.getFace();
+		}
+
+		@Override
+		public TileRender get(int index) {
+			return TileRenderRegistry.getInstance().get(parent.get(index).getId());
+		}
+
+		@Override
+		public int size() {
+			return parent.size();
+		}
+		
+		@Override
+		public TileDataStack getData() {
+			return parent;
+		}
+		
+	}
+
 }

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

@@ -26,15 +26,26 @@ import java.util.WeakHashMap;
 import glm.vec._3.i.Vec3i;
 import ru.windcorp.progressia.client.graphics.backend.FaceCulling;
 import ru.windcorp.progressia.client.graphics.model.ShapeRenderHelper;
+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.TileRenderStack;
 import ru.windcorp.progressia.common.world.ChunkData;
 import ru.windcorp.progressia.common.world.ChunkDataListeners;
 import ru.windcorp.progressia.common.world.WorldData;
 import ru.windcorp.progressia.common.world.WorldDataListener;
 import ru.windcorp.progressia.common.world.entity.EntityData;
+import ru.windcorp.progressia.common.world.generic.GenericWorld;
 
-public class WorldRender {
+public class WorldRender
+implements GenericWorld<
+	BlockRender,
+	TileRender,
+	TileRenderStack,
+	ChunkRender,
+	EntityRenderable
+> {
 	
 	private final WorldData data;
 	
@@ -67,14 +78,21 @@ public class WorldRender {
 		return chunks.get(chunkData);
 	}
 	
+	@Override
 	public ChunkRender getChunk(Vec3i pos) {
 		return chunks.get(getData().getChunk(pos));
 	}
 	
+	@Override
 	public Collection<ChunkRender> getChunks() {
 		return chunks.values();
 	}
 	
+	@Override
+	public Collection<EntityRenderable> getEntities() {
+		return entityModels.values();
+	}
+	
 	public void render(ShapeRenderHelper renderer) {
 		for (ChunkRender chunk : getChunks()) {
 			chunk.render(renderer);

src/main/java/ru/windcorp/progressia/client/world/block/BlockRender.java

@@ -19,9 +19,10 @@ package ru.windcorp.progressia.client.world.block;
 
 import ru.windcorp.progressia.client.graphics.model.ShapeRenderHelper;
 import ru.windcorp.progressia.common.util.namespaces.Namespaced;
+import ru.windcorp.progressia.common.world.generic.GenericBlock;
 import ru.windcorp.progressia.client.graphics.model.Renderable;
 
-public abstract class BlockRender extends Namespaced {
+public abstract class BlockRender extends Namespaced implements GenericBlock {
 	
 	public BlockRender(String id) {
 		super(id);

src/main/java/ru/windcorp/progressia/client/world/cro/ChunkRenderOptimizerCube.java

@@ -18,8 +18,8 @@
 package ru.windcorp.progressia.client.world.cro;
 
 import static ru.windcorp.progressia.common.world.ChunkData.BLOCKS_PER_CHUNK;
-import static ru.windcorp.progressia.common.world.tile.GenericTileStack.TILES_PER_FACE;
 import static ru.windcorp.progressia.common.world.block.BlockFace.BLOCK_FACE_COUNT;
+import static ru.windcorp.progressia.common.world.generic.GenericTileStack.TILES_PER_FACE;
 
 import java.util.ArrayList;
 import java.util.Collection;

src/main/java/ru/windcorp/progressia/client/world/entity/EntityRenderable.java

@@ -3,8 +3,9 @@ package ru.windcorp.progressia.client.world.entity;
 import glm.vec._3.Vec3;
 import ru.windcorp.progressia.client.graphics.model.Renderable;
 import ru.windcorp.progressia.common.world.entity.EntityData;
+import ru.windcorp.progressia.common.world.generic.GenericEntity;
 
-public abstract class EntityRenderable implements Renderable {
+public abstract class EntityRenderable implements Renderable, GenericEntity {
 	
 	private final EntityData data;
 	
@@ -16,6 +17,16 @@ public abstract class EntityRenderable implements Renderable {
 		return data;
 	}
 	
+	@Override
+	public Vec3 getPosition() {
+		return getData().getPosition();
+	}
+	
+	@Override
+	public String getId() {
+		return getData().getId();
+	}
+	
 	public void getViewPoint(Vec3 output) {
 		output.set(0, 0, 0);
 	}

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

@@ -5,8 +5,9 @@ import ru.windcorp.progressia.client.graphics.model.Renderable;
 import ru.windcorp.progressia.client.world.cro.ChunkRenderOptimizer;
 import ru.windcorp.progressia.common.util.namespaces.Namespaced;
 import ru.windcorp.progressia.common.world.block.BlockFace;
+import ru.windcorp.progressia.common.world.generic.GenericTile;
 
-public class TileRender extends Namespaced {
+public class TileRender extends Namespaced implements GenericTile {
 
 	public TileRender(String id) {
 		super(id);

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

@@ -0,0 +1,16 @@
+package ru.windcorp.progressia.client.world.tile;
+
+import ru.windcorp.progressia.client.world.ChunkRender;
+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
+> {
+	
+	public abstract TileDataStack getData();
+	
+}

src/main/java/ru/windcorp/progressia/common/state/OptimizedStateStorage.java

@@ -8,10 +8,12 @@ public class OptimizedStateStorage extends StateStorage {
 		this.ints = new int[sizes.getInts()];
 	}
 
+	@Override
 	public int getInt(int index) {
 		return ints[index];
 	}
 
+	@Override
 	public void setInt(int index, int value) {
 		ints[index] = value;
 	}

src/main/java/ru/windcorp/progressia/common/util/ByteBufferInputStream.java

@@ -32,6 +32,7 @@ public class ByteBufferInputStream extends InputStream {
 		this.buffer = buffer;
 	}
 
+	@Override
 	public int read() {
 		if (!buffer.hasRemaining()) {
 			return -1;
@@ -39,6 +40,7 @@ public class ByteBufferInputStream extends InputStream {
 		return buffer.get() & 0xFF;
 	}
 
+	@Override
 	public int read(byte[] bytes, int off, int len) {
 		if (!buffer.hasRemaining()) {
 			return -1;

src/main/java/ru/windcorp/progressia/common/util/ByteBufferOutputStream.java

@@ -30,6 +30,7 @@ public class ByteBufferOutputStream extends OutputStream {
 		this.buffer = buffer;
 	}
 
+	@Override
 	public void write(int b) throws IOException {
 		try {
 			buffer.put((byte) b);
@@ -38,6 +39,7 @@ public class ByteBufferOutputStream extends OutputStream {
 		}
 	}
 
+	@Override
 	public void write(byte[] bytes, int off, int len) throws IOException {
 		try {
 			buffer.put(bytes, off, len);

src/main/java/ru/windcorp/progressia/common/util/SizeLimitedList.java

@@ -44,6 +44,7 @@ public class SizeLimitedList<E> extends ForwardingList<E> {
 		return standardAddAll(index, elements);
 	}
 
+	@Override
 	public boolean add(E e) {
 		checkMaxSize();
 		return delegate().add(e);

src/main/java/ru/windcorp/progressia/common/util/VectorUtil.java

@@ -22,7 +22,7 @@ public class VectorUtil {
 	public static void forEachVectorInCuboid(
 			int x0, int y0, int z0,
 			int x1, int y1, int z1,
-			Consumer<Vec3i> action
+			Consumer<? super Vec3i> action
 	) {
 		Vec3i cursor = Vectors.grab3i();
 		

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

@@ -33,12 +33,19 @@ import ru.windcorp.progressia.common.util.VectorUtil;
 import ru.windcorp.progressia.common.world.block.BlockData;
 import ru.windcorp.progressia.common.world.block.BlockFace;
 import ru.windcorp.progressia.common.world.entity.EntityData;
+import ru.windcorp.progressia.common.world.generic.GenericChunk;
 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.TileStackIsFullException;
 
-public class ChunkData {
+public class ChunkData
+implements GenericChunk<
+	ChunkData,
+	BlockData,
+	TileData,
+	TileDataStack
+> {
 	
 	public static final int BLOCKS_PER_CHUNK = Coordinates.CHUNK_SIZE;
 	
@@ -65,6 +72,12 @@ public class ChunkData {
 		this.world = world;
 	}
 	
+	@Override
+	public Vec3i getPosition() {
+		return position;
+	}
+	
+	@Override
 	public BlockData getBlock(Vec3i posInChunk) {
 		return blocks[getBlockIndex(posInChunk)];
 	}
@@ -81,6 +94,7 @@ public class ChunkData {
 		}
 	}
 	
+	@Override
 	public TileDataStack getTilesOrNull(Vec3i blockInChunk, BlockFace face) {
 		return tiles[getTileIndex(blockInChunk, face)];
 	}
@@ -98,10 +112,12 @@ public class ChunkData {
 		this.tiles[getTileIndex(blockInChunk, face)] = tiles;
 	}
 	
+	@Override
 	public boolean hasTiles(Vec3i blockInChunk, BlockFace face) {
 		return getTilesOrNull(blockInChunk, face) != null;
 	}
 	
+	@Override
 	public TileDataStack getTiles(Vec3i blockInChunk, BlockFace face) {
 		int index = getTileIndex(blockInChunk, face);
 		
@@ -207,22 +223,6 @@ public class ChunkData {
 		getEntities().forEach(action);
 	}
 	
-	public int getX() {
-		return position.x;
-	}
-	
-	public int getY() {
-		return position.y;
-	}
-	
-	public int getZ() {
-		return position.z;
-	}
-	
-	public Vec3i getPosition() {
-		return position;
-	}
-	
 	public WorldData getWorld() {
 		return world;
 	}

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

@@ -30,9 +30,19 @@ import ru.windcorp.progressia.common.collision.CollisionModel;
 import ru.windcorp.progressia.common.util.CoordinatePacker;
 import ru.windcorp.progressia.common.world.block.BlockData;
 import ru.windcorp.progressia.common.world.entity.EntityData;
+import ru.windcorp.progressia.common.world.generic.GenericWorld;
+import ru.windcorp.progressia.common.world.tile.TileData;
+import ru.windcorp.progressia.common.world.tile.TileDataStack;
 import ru.windcorp.progressia.test.TestContent;
 
-public class WorldData {
+public class WorldData
+implements GenericWorld<
+	BlockData,
+	TileData,
+	TileDataStack,
+	ChunkData,
+	EntityData
+>{
 
 	private final TLongObjectMap<ChunkData> chunksByPos =
 			new TSynchronizedLongObjectMap<>(new TLongObjectHashMap<>(), this);
@@ -55,6 +65,21 @@ public class WorldData {
 		
 	}
 	
+	@Override
+	public ChunkData getChunk(Vec3i pos) {
+		return chunksByPos.get(CoordinatePacker.pack3IntsIntoLong(pos));
+	}
+	
+	@Override
+	public Collection<ChunkData> getChunks() {
+		return chunks;
+	}
+	
+	@Override
+	public Collection<EntityData> getEntities() {
+		return entities;
+	}
+	
 	public void tmp_generate() {
 		final int size = 10;
 		Vec3i cursor = new Vec3i(0, 0, 0);
@@ -112,21 +137,6 @@ public class WorldData {
 		return CoordinatePacker.pack3IntsIntoLong(chunk.getPosition());
 	}
 	
-	public ChunkData getChunk(Vec3i pos) {
-		return chunksByPos.get(CoordinatePacker.pack3IntsIntoLong(pos));
-	}
-	
-	public ChunkData getChunkByBlock(Vec3i blockInWorld) {
-		return getChunk(Coordinates.convertInWorldToChunk(blockInWorld, null));
-	}
-	
-	public BlockData getBlock(Vec3i blockInWorld) {
-		ChunkData chunk = getChunkByBlock(blockInWorld);
-		if (chunk == null) return null;
-		
-		return chunk.getBlock(Coordinates.convertInWorldToInChunk(blockInWorld, null));
-	}
-	
 	public void setBlock(Vec3i blockInWorld, BlockData block, boolean notify) {
 		ChunkData chunk = getChunkByBlock(blockInWorld);
 		if (chunk == null)
@@ -139,10 +149,6 @@ public class WorldData {
 		chunk.setBlock(Coordinates.convertInWorldToInChunk(blockInWorld, null), block, notify);
 	}
 	
-	public Collection<ChunkData> getChunks() {
-		return chunks;
-	}
-	
 	public TLongSet getChunkKeys() {
 		return chunksByPos.keySet();
 	}
@@ -151,10 +157,6 @@ public class WorldData {
 		return entitiesById.get(entityId);
 	}
 	
-	public Collection<EntityData> getEntities() {
-		return entities;
-	}
-	
 	public float getTime() {
 		return time;
 	}

src/main/java/ru/windcorp/progressia/common/world/block/BlockData.java

@@ -20,8 +20,9 @@ package ru.windcorp.progressia.common.world.block;
 import ru.windcorp.progressia.common.collision.AABB;
 import ru.windcorp.progressia.common.collision.CollisionModel;
 import ru.windcorp.progressia.common.util.namespaces.Namespaced;
+import ru.windcorp.progressia.common.world.generic.GenericBlock;
 
-public class BlockData extends Namespaced {
+public class BlockData extends Namespaced implements GenericBlock {
 
 	public BlockData(String id) {
 		super(id);

src/main/java/ru/windcorp/progressia/common/world/entity/EntityData.java

@@ -2,13 +2,12 @@ package ru.windcorp.progressia.common.world.entity;
 
 import glm.vec._2.Vec2;
 import glm.vec._3.Vec3;
-import glm.vec._3.i.Vec3i;
 import ru.windcorp.progressia.common.collision.Collideable;
 import ru.windcorp.progressia.common.collision.CollisionModel;
 import ru.windcorp.progressia.common.state.StatefulObject;
-import ru.windcorp.progressia.common.world.Coordinates;
+import ru.windcorp.progressia.common.world.generic.GenericEntity;
 
-public class EntityData extends StatefulObject implements Collideable {
+public class EntityData extends StatefulObject implements Collideable, GenericEntity {
 	
 	private final Vec3 position = new Vec3();
 	private final Vec3 velocity = new Vec3();
@@ -25,20 +24,11 @@ public class EntityData extends StatefulObject implements Collideable {
 		super(EntityDataRegistry.getInstance(), id);
 	}
 	
+	@Override
 	public Vec3 getPosition() {
 		return position;
 	}
 	
-	public Vec3i getBlockInWorld(Vec3i output) {
-		if (output == null) output = new Vec3i();
-		return position.round(output);
-	}
-	
-	public Vec3i getChunkCoords(Vec3i output) {
-		output = getBlockInWorld(output);
-		return Coordinates.convertInWorldToChunk(output, output);
-	}
-	
 	public void setPosition(Vec3 position) {
 		move(position.sub_(getPosition()));
 	}

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

@@ -0,0 +1,7 @@
+package ru.windcorp.progressia.common.world.generic;
+
+public interface GenericBlock {
+	
+	String getId();
+
+}

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

@@ -0,0 +1,85 @@
+package ru.windcorp.progressia.common.world.generic;
+
+import java.util.function.Consumer;
+
+import glm.vec._3.i.Vec3i;
+import ru.windcorp.progressia.common.util.VectorUtil;
+import ru.windcorp.progressia.common.util.Vectors;
+import ru.windcorp.progressia.common.world.Coordinates;
+import ru.windcorp.progressia.common.world.block.BlockFace;
+
+public interface GenericChunk<
+	Self extends GenericChunk<Self, B, T, TS>,
+	B    extends GenericBlock,
+	T    extends GenericTile,
+	TS   extends GenericTileStack<TS, T, Self>
+> {
+	
+	public static final int BLOCKS_PER_CHUNK = Coordinates.CHUNK_SIZE;
+
+	Vec3i getPosition();
+	
+	B getBlock(Vec3i blockInChunk);
+	TS getTiles(Vec3i blockInChunk, BlockFace face);
+	boolean hasTiles(Vec3i blockInChunk, BlockFace face);
+	
+	default int getX() {
+		return getPosition().x;
+	}
+	
+	default int getY() {
+		return getPosition().y;
+	}
+	
+	default int getZ() {
+		return getPosition().z;
+	}
+	
+	default boolean containsBiC(Vec3i blockInChunk) {
+		return
+				blockInChunk.x >= 0 && blockInChunk.x < BLOCKS_PER_CHUNK &&
+				blockInChunk.y >= 0 && blockInChunk.y < BLOCKS_PER_CHUNK &&
+				blockInChunk.z >= 0 && blockInChunk.z < BLOCKS_PER_CHUNK;
+	}
+	
+	default boolean containsBiW(Vec3i blockInWorld) {
+		Vec3i v = Vectors.grab3i();
+		
+		v = Coordinates.getInWorld(getPosition(), Vectors.ZERO_3i, v);
+		v = blockInWorld.sub(v, v);
+		
+		boolean result = containsBiC(v);
+		
+		Vectors.release(v);
+		return result;
+	}
+	
+	default void forEachBiC(Consumer<? super Vec3i> action) {
+		VectorUtil.forEachVectorInCuboid(
+				0,                0,                0,
+				BLOCKS_PER_CHUNK, BLOCKS_PER_CHUNK, BLOCKS_PER_CHUNK,
+				action
+		);
+	}
+	
+	default void forEachBiW(Consumer<? super Vec3i> action) {
+		VectorUtil.forEachVectorInCuboid(
+				Coordinates.getInWorld(getX(), 0),
+				Coordinates.getInWorld(getY(), 0),
+				Coordinates.getInWorld(getZ(), 0),
+				BLOCKS_PER_CHUNK,
+				BLOCKS_PER_CHUNK,
+				BLOCKS_PER_CHUNK,
+				action
+		);
+	}
+	
+	default TS getTilesOrNull(Vec3i blockInChunk, BlockFace face) {
+		if (hasTiles(blockInChunk, face)) {
+			return getTiles(blockInChunk, face);
+		}
+		
+		return null;
+	}
+	
+}

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

@@ -0,0 +1,22 @@
+package ru.windcorp.progressia.common.world.generic;
+
+import glm.vec._3.Vec3;
+import glm.vec._3.i.Vec3i;
+import ru.windcorp.progressia.common.world.Coordinates;
+
+public interface GenericEntity {
+	
+	String getId();
+	Vec3 getPosition();
+	
+	default Vec3i getBlockInWorld(Vec3i output) {
+		if (output == null) output = new Vec3i();
+		return getPosition().round(output);
+	}
+	
+	default Vec3i getChunkCoords(Vec3i output) {
+		output = getBlockInWorld(output);
+		return Coordinates.convertInWorldToChunk(output, output);
+	}
+
+}

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

@@ -0,0 +1,7 @@
+package ru.windcorp.progressia.common.world.generic;
+
+public interface GenericTile {
+	
+	String getId();
+
+}

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

@@ -1,4 +1,4 @@
-package ru.windcorp.progressia.common.world.tile;
+package ru.windcorp.progressia.common.world.generic;
 
 import java.util.AbstractList;
 import java.util.Objects;
@@ -6,11 +6,14 @@ import java.util.RandomAccess;
 import java.util.function.Consumer;
 
 import glm.vec._3.i.Vec3i;
-import ru.windcorp.progressia.common.util.namespaces.Namespaced;
 import ru.windcorp.progressia.common.world.Coordinates;
 import ru.windcorp.progressia.common.world.block.BlockFace;
 
-public abstract class GenericTileStack<T extends Namespaced, C>
+public abstract class GenericTileStack<
+	Self extends GenericTileStack<Self, T, C>,
+	T    extends GenericTile,
+	C    extends GenericChunk<C, ?, T, Self>
+>
 extends AbstractList<T>
 implements RandomAccess {
 	
@@ -21,13 +24,12 @@ implements RandomAccess {
 	public static final int TILES_PER_FACE = 8;
 	
 	public abstract Vec3i getBlockInChunk(Vec3i output);
-	protected abstract Vec3i getChunkPos();
 	public abstract C getChunk();
 	public abstract BlockFace getFace();
 	
 	public Vec3i getBlockInWorld(Vec3i output) {
 		// This is safe
-		return Coordinates.getInWorld(getChunkPos(), getBlockInChunk(output), output);
+		return Coordinates.getInWorld(getChunk().getPosition(), getBlockInChunk(output), output);
 	}
 	
 	public boolean isFull() {

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

@@ -0,0 +1,176 @@
+package ru.windcorp.progressia.common.world.generic;
+
+import java.util.Collection;
+import java.util.function.Consumer;
+
+import glm.Glm;
+import glm.vec._3.Vec3;
+import glm.vec._3.i.Vec3i;
+import ru.windcorp.progressia.common.util.Vectors;
+import ru.windcorp.progressia.common.world.Coordinates;
+import ru.windcorp.progressia.common.world.block.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
+> {
+
+	Collection<C> getChunks();
+	C getChunk(Vec3i pos);
+	
+	Collection<E> getEntities();
+	
+	/*
+	 * Chunks
+	 */
+	
+	default C getChunkByBlock(Vec3i blockInWorld) {
+		Vec3i chunkCoords = Vectors.grab3i();
+		chunkCoords = Coordinates.convertInWorldToChunk(blockInWorld, chunkCoords);
+		C result = getChunk(chunkCoords);
+		Vectors.release(chunkCoords);
+		return result;
+	}
+	
+	default B getBlock(Vec3i blockInWorld) {
+		Vec3i v = Vectors.grab3i();
+		B result;
+		
+		C chunk = getChunk(Coordinates.convertInWorldToChunk(blockInWorld, v));
+		if (chunk == null) {
+			result = null;
+		} else {
+			result = chunk.getBlock(Coordinates.convertInWorldToInChunk(blockInWorld, v));
+		}
+		
+		Vectors.release(v);
+		return result;
+	}
+	
+	default TS getTiles(Vec3i blockInWorld, BlockFace face) {
+		Vec3i v = Vectors.grab3i();
+		TS result;
+		
+		C chunk = getChunk(Coordinates.convertInWorldToChunk(blockInWorld, v));
+		if (chunk == null) {
+			result = null;
+		} else {
+			result = chunk.getTiles(Coordinates.convertInWorldToInChunk(blockInWorld, v), face);
+		}
+		
+		Vectors.release(v);
+		return result;
+	}
+	
+	default TS getTilesOrNull(Vec3i blockInWorld, BlockFace face) {
+		Vec3i v = Vectors.grab3i();
+		TS result;
+		
+		C chunk = getChunk(Coordinates.convertInWorldToChunk(blockInWorld, v));
+		if (chunk == null) {
+			result = null;
+		} else {
+			result = chunk.getTilesOrNull(Coordinates.convertInWorldToInChunk(blockInWorld, v), face);
+		}
+		
+		Vectors.release(v);
+		return result;
+	}
+	
+	default boolean hasTiles(Vec3i blockInWorld, BlockFace face) {
+		Vec3i v = Vectors.grab3i();
+		boolean result;
+		
+		C chunk = getChunk(Coordinates.convertInWorldToChunk(blockInWorld, v));
+		if (chunk == null) {
+			result = false;
+		} else {
+			result = chunk.hasTiles(Coordinates.convertInWorldToInChunk(blockInWorld, v), face);
+		}
+		
+		Vectors.release(v);
+		return result;
+	}
+	
+	default T getTile(Vec3i blockInWorld, BlockFace face, int layer) {
+		TS stack = getTilesOrNull(blockInWorld, face);
+		if (stack == null || stack.size() <= layer) return null;
+		return stack.get(layer);
+	}
+	
+	default boolean isChunkLoaded(Vec3i pos) {
+		return getChunk(pos) != null;
+	}
+	
+	default boolean isBlockLoaded(Vec3i blockInWorld) {
+		return getChunkByBlock(blockInWorld) != null;
+	}
+	
+	default void forEachChunk(Consumer<? super C> action) {
+		getChunks().forEach(action);
+	}
+	
+	/*
+	 * Entities
+	 */
+	
+	default void forEachEntity(Consumer<? super E> action) {
+		getEntities().forEach(action);
+	}
+	
+	default void forEachEntityIn(Vec3i min, Vec3i max, Consumer<? super E> action) {
+		forEachEntity(e -> {
+			Vec3 pos = e.getPosition();
+			if (pos.x < min.x || pos.y < min.y || pos.z < min.z || pos.x > max.x || pos.y > max.y || pos.z > max.z) {
+				action.accept(e);
+			}
+		});
+	}
+	
+	default void forEachEntityIn(Vec3 min, Vec3 max, Consumer<? super E> action) {
+		forEachEntity(e -> {
+			Vec3 pos = e.getPosition();
+			if (pos.x < min.x || pos.y < min.y || pos.z < min.z || pos.x > max.x || pos.y > max.y || pos.z > max.z) {
+				action.accept(e);
+			}
+		});
+	}
+	
+	default void forEachEntityInChunk(Vec3i pos, Consumer<? super E> action) {
+		Vec3i v = Vectors.grab3i();
+		
+		forEachEntity(e -> {
+			e.getChunkCoords(v);
+			if (Glm.equals(v, pos)) {
+				action.accept(e);
+			}
+		});
+		
+		Vectors.release(v);
+	}
+	
+	default void forEachEntityInChunk(C chunk, Consumer<? super E> action) {
+		Vec3i v = Vectors.grab3i();
+		
+		forEachEntity(e -> {
+			e.getChunkCoords(v);
+			if (Glm.equals(v, chunk.getPosition())) {
+				action.accept(e);
+			}
+		});
+		
+		Vectors.release(v);
+	}
+	
+	default void forEachEntityWithId(String id, Consumer<? super E> action) {
+		forEachEntity(e -> {
+			if (id.equals(e.getId())) {
+				action.accept(e);
+			}
+		});
+	}
+	
+}

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

@@ -18,8 +18,9 @@
 package ru.windcorp.progressia.common.world.tile;
 
 import ru.windcorp.progressia.common.util.namespaces.Namespaced;
+import ru.windcorp.progressia.common.world.generic.GenericTile;
 
-public class TileData extends Namespaced {
+public class TileData extends Namespaced implements GenericTile {
 
 	public TileData(String id) {
 		super(id);

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

@@ -1,10 +1,15 @@
 package ru.windcorp.progressia.common.world.tile;
 
-import glm.vec._3.i.Vec3i;
 import ru.windcorp.progressia.common.world.ChunkData;
 import ru.windcorp.progressia.common.world.block.BlockData;
+import ru.windcorp.progressia.common.world.generic.GenericTileStack;
 
-public abstract class TileDataStack extends GenericTileStack<TileData, ChunkData> {
+public abstract class TileDataStack
+extends GenericTileStack<
+	TileDataStack,
+	TileData,
+	ChunkData
+> {
 	
 	/**
 	 * Inserts the specified tile at the specified position in this stack.
@@ -54,15 +59,6 @@ public abstract class TileDataStack extends GenericTileStack<TileData, ChunkData
 	
 	public abstract int getTagByIndex(int index);
 	
-	/*
-	 * Implementation
-	 */
-	
-	@Override
-	public Vec3i getChunkPos() {
-		return getChunk().getPosition();
-	}
-	
 	/*
 	 * Aliases and overloads
 	 */

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

@@ -12,6 +12,7 @@ import ru.windcorp.progressia.common.world.ChunkData;
 import ru.windcorp.progressia.common.world.Coordinates;
 import ru.windcorp.progressia.common.world.block.BlockFace;
 import ru.windcorp.progressia.common.world.entity.EntityData;
+import ru.windcorp.progressia.common.world.generic.GenericChunk;
 import ru.windcorp.progressia.common.world.tile.TileDataStack;
 import ru.windcorp.progressia.common.world.tile.TileReference;
 import ru.windcorp.progressia.server.world.block.BlockLogic;
@@ -26,7 +27,12 @@ import ru.windcorp.progressia.server.world.tile.TileLogic;
 import ru.windcorp.progressia.server.world.tile.TileLogicRegistry;
 import ru.windcorp.progressia.server.world.tile.TileLogicStack;
 
-public class ChunkLogic {
+public class ChunkLogic implements GenericChunk<
+	ChunkLogic,
+	BlockLogic,
+	TileLogic,
+	TileLogicStack
+> {
 	
 	private final WorldLogic world;
 	private final ChunkData data;
@@ -43,31 +49,36 @@ public class ChunkLogic {
 		this.world = world;
 		this.data = data;
 		
-		generateTickLists();
+		tmp_generateTickLists();
 	}
 	
-	private void generateTickLists() {
+	@Override
-		ChunkTickContext context = TickContextMutable.start().withChunk(this).build();
+	public Vec3i getPosition() {
-		
+		return getData().getPosition();
-		context.forEachBlock(bctxt -> {
-			BlockLogic block = bctxt.getBlock();
-			
-			if (!(block instanceof TickableBlock)) return;
-			
-			if (((TickableBlock) block).getTickingPolicy(bctxt) == TickingPolicy.REGULAR) {
-				tickingBlocks.add(Coordinates.convertInWorldToInChunk(bctxt.getBlockInWorld(), null));
 	}
 	
-			bctxt.forEachFace(fctxt -> fctxt.forEachTile(tctxt -> {
+	@Override
-				TileLogic tile = tctxt.getTile();
+	public BlockLogic getBlock(Vec3i blockInChunk) {
-				
+		return BlockLogicRegistry.getInstance().get(
-				if (!(tile instanceof TickableTile)) return;
+				getData().getBlock(blockInChunk).getId()
-				
+		);
-				if (((TickableTile) tile).getTickingPolicy(tctxt) == TickingPolicy.REGULAR) {
-					tickingTiles.add(tctxt.getReference());
 	}
-			}));
+	
-		});
+	@Override
+	public TileLogicStack getTiles(Vec3i blockInChunk, BlockFace face) {
+		return getTileStackWrapper(getData().getTiles(blockInChunk, face));
+	}
+	
+	@Override
+	public boolean hasTiles(Vec3i blockInChunk, BlockFace face) {
+		return getData().hasTiles(blockInChunk, face);
+	}
+	
+	private TileLogicStack getTileStackWrapper(TileDataStack tileDataList) {
+		return tileLogicLists.computeIfAbsent(
+				tileDataList,
+				TileLogicStackImpl::new
+		);
 	}
 
 	public WorldLogic getWorld() {
@@ -78,10 +89,6 @@ public class ChunkLogic {
 		return data;
 	}
 	
-	public Vec3i getPosition() {
-		return getData().getPosition();
-	}
-	
 	public boolean hasTickingBlocks() {
 		return !tickingBlocks.isEmpty();
 	}
@@ -114,29 +121,6 @@ public class ChunkLogic {
 		});
 	}
 	
-	public BlockLogic getBlock(Vec3i blockInChunk) {
-		return BlockLogicRegistry.getInstance().get(
-				getData().getBlock(blockInChunk).getId()
-		);
-	}
-	
-	public TileLogicStack getTiles(Vec3i blockInChunk, BlockFace face) {
-		return getTileStackWrapper(getData().getTiles(blockInChunk, face));
-	}
-	
-	public TileLogicStack getTilesOrNull(Vec3i blockInChunk, BlockFace face) {
-		TileDataStack tiles = getData().getTilesOrNull(blockInChunk, face);
-		if (tiles == null) return null;
-		return getTileStackWrapper(tiles);
-	}
-	
-	private TileLogicStack getTileStackWrapper(TileDataStack tileDataList) {
-		return tileLogicLists.computeIfAbsent(
-				tileDataList,
-				TileLogicStackImpl::new
-		);
-	}
-	
 	public TickChunk getTickTask() {
 		return tickTask;
 	}
@@ -154,11 +138,6 @@ public class ChunkLogic {
 			return parent.getBlockInChunk(output);
 		}
 
-		@Override
-		public Vec3i getChunkPos() {
-			return ChunkLogic.this.getPosition();
-		}
-
 		@Override
 		public ChunkLogic getChunk() {
 			return ChunkLogic.this;
@@ -186,4 +165,28 @@ public class ChunkLogic {
 		
 	}
 	
+	private void tmp_generateTickLists() {
+		ChunkTickContext context = TickContextMutable.start().withChunk(this).build();
+		
+		context.forEachBlock(bctxt -> {
+			BlockLogic block = bctxt.getBlock();
+			
+			if (!(block instanceof TickableBlock)) return;
+			
+			if (((TickableBlock) block).getTickingPolicy(bctxt) == TickingPolicy.REGULAR) {
+				tickingBlocks.add(Coordinates.convertInWorldToInChunk(bctxt.getBlockInWorld(), null));
+			}
+			
+			bctxt.forEachFace(fctxt -> fctxt.forEachTile(tctxt -> {
+				TileLogic tile = tctxt.getTile();
+				
+				if (!(tile instanceof TickableTile)) return;
+				
+				if (((TickableTile) tile).getTickingPolicy(tctxt) == TickingPolicy.REGULAR) {
+					tickingTiles.add(tctxt.getReference());
+				}
+			}));
+		});
+	}
+
 }

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

@@ -8,7 +8,7 @@ import glm.vec._3.i.Vec3i;
 import ru.windcorp.progressia.common.world.ChunkData;
 import ru.windcorp.progressia.common.world.Coordinates;
 import ru.windcorp.progressia.common.world.block.BlockFace;
-import ru.windcorp.progressia.common.world.tile.GenericTileStack;
+import ru.windcorp.progressia.common.world.generic.GenericTileStack;
 import ru.windcorp.progressia.common.world.tile.TileDataStack;
 import ru.windcorp.progressia.common.world.tile.TileReference;
 import ru.windcorp.progressia.server.Server;
@@ -87,7 +87,7 @@ public abstract class TickContextMutable implements BlockTickContext, TSTickCont
 		public static interface World extends Builder {
 			Chunk withChunk(Vec3i chunk);
 			Block withBlock(Vec3i blockInWorld);
-			TileStack withTS(GenericTileStack<?, ?> tileStack);
+			TileStack withTS(GenericTileStack<?, ?, ?> tileStack);
 			
 			default Builder.Chunk withChunk(ChunkData chunk) {
 				Objects.requireNonNull(chunk, "chunk");
@@ -237,7 +237,7 @@ public abstract class TickContextMutable implements BlockTickContext, TSTickCont
 		}
 		
 		@Override
-		public TileStack withTS(GenericTileStack<?, ?> tileStack) {
+		public TileStack withTS(GenericTileStack<?, ?, ?> tileStack) {
 			Objects.requireNonNull(tileStack, "tileStack");
 			
 			return withBlock(tileStack.getBlockInWorld(this.blockInWorld)).withFace(tileStack.getFace());

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

@@ -2,22 +2,29 @@ package ru.windcorp.progressia.server.world;
 
 import java.util.Collection;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
 import glm.vec._3.i.Vec3i;
 import ru.windcorp.progressia.common.world.ChunkData;
 import ru.windcorp.progressia.common.world.ChunkDataListeners;
-import ru.windcorp.progressia.common.world.Coordinates;
 import ru.windcorp.progressia.common.world.WorldData;
 import ru.windcorp.progressia.common.world.WorldDataListener;
-import ru.windcorp.progressia.common.world.block.BlockFace;
+import ru.windcorp.progressia.common.world.entity.EntityData;
+import ru.windcorp.progressia.common.world.generic.GenericWorld;
 import ru.windcorp.progressia.server.Server;
 import ru.windcorp.progressia.server.world.block.BlockLogic;
 import ru.windcorp.progressia.server.world.tile.TileLogic;
+import ru.windcorp.progressia.server.world.tile.TileLogicStack;
 import ru.windcorp.progressia.test.TestChunkSender;
 
-public class WorldLogic {
+public class WorldLogic
+implements GenericWorld<
+	BlockLogic,
+	TileLogic,
+	TileLogicStack,
+	ChunkLogic,
+	EntityData // not using EntityLogic because it is stateless
+> {
 	
 	private final WorldData data;
 	private final Server server;
@@ -44,6 +51,21 @@ public class WorldLogic {
 		data.addListener(new TestChunkSender(server));
 	}
 	
+	@Override
+	public ChunkLogic getChunk(Vec3i pos) {
+		return chunks.get(getData().getChunk(pos));
+	}
+	
+	@Override
+	public Collection<ChunkLogic> getChunks() {
+		return chunks.values();
+	}
+	
+	@Override
+	public Collection<EntityData> getEntities() {
+		return getData().getEntities();
+	}
+	
 	public Server getServer() {
 		return server;
 	}
@@ -56,52 +78,4 @@ public class WorldLogic {
 		return chunks.get(chunkData);
 	}
 
-	public ChunkLogic getChunk(Vec3i pos) {
-		return chunks.get(getData().getChunk(pos));
-	}
-	
-	public ChunkLogic getChunkByBlock(Vec3i blockInWorld) {
-		return getChunk(Coordinates.convertInWorldToChunk(blockInWorld, null));
-	}
-	
-	public BlockLogic getBlock(Vec3i blockInWorld) {
-		ChunkLogic chunk = getChunkByBlock(blockInWorld);
-		if (chunk == null) return null;
-		
-		return chunk.getBlock(Coordinates.convertInWorldToInChunk(blockInWorld, null));
-	}
-	
-	public List<TileLogic> getTiles(Vec3i blockInWorld, BlockFace face) {
-		return getTilesImpl(blockInWorld, face, true);
-	}
-	
-	public List<TileLogic> getTilesOrNull(Vec3i blockInWorld, BlockFace face) {
-		return getTilesImpl(blockInWorld, face, false);
-	}
-	
-	private List<TileLogic> getTilesImpl(Vec3i blockInWorld, BlockFace face, boolean createIfMissing) {
-		ChunkLogic chunk = getChunkByBlock(blockInWorld);
-		if (chunk == null) return null;
-		
-		Vec3i blockInChunk = Coordinates.convertInWorldToInChunk(blockInWorld, null);
-		
-		List<TileLogic> result =
-				createIfMissing
-				? chunk.getTiles(blockInChunk, face)
-				: chunk.getTilesOrNull(blockInChunk, face);
-		
-		return result;
-	}
-	
-	public TileLogic getTile(Vec3i blockInWorld, BlockFace face, int layer) {
-		List<TileLogic> tiles = getTilesOrNull(blockInWorld, face);
-		if (tiles == null || tiles.size() <= layer) return null;
-		
-		return tiles.get(layer);
-	}
-	
-	public Collection<ChunkLogic> getChunks() {
-		return chunks.values();
-	}
-
 }

src/main/java/ru/windcorp/progressia/server/world/block/BlockLogic.java

@@ -2,8 +2,9 @@ package ru.windcorp.progressia.server.world.block;
 
 import ru.windcorp.progressia.common.util.namespaces.Namespaced;
 import ru.windcorp.progressia.common.world.block.BlockFace;
+import ru.windcorp.progressia.common.world.generic.GenericBlock;
 
-public class BlockLogic extends Namespaced {
+public class BlockLogic extends Namespaced implements GenericBlock {
 
 	public BlockLogic(String id) {
 		super(id);

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

@@ -2,8 +2,9 @@ package ru.windcorp.progressia.server.world.tile;
 
 import ru.windcorp.progressia.common.util.namespaces.Namespaced;
 import ru.windcorp.progressia.common.world.block.BlockFace;
+import ru.windcorp.progressia.common.world.generic.GenericTile;
 
-public class TileLogic extends Namespaced {
+public class TileLogic extends Namespaced implements GenericTile {
 
 	public TileLogic(String id) {
 		super(id);

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

@@ -1,12 +1,15 @@
 package ru.windcorp.progressia.server.world.tile;
 
-import ru.windcorp.progressia.common.world.tile.GenericTileStack;
+import ru.windcorp.progressia.common.world.generic.GenericTileStack;
 import ru.windcorp.progressia.common.world.tile.TileDataStack;
 import ru.windcorp.progressia.server.world.ChunkLogic;
 
-public abstract class TileLogicStack extends GenericTileStack<TileLogic, ChunkLogic> {
+public abstract class TileLogicStack
-	
+extends GenericTileStack<
-	// TODO add @Deprecated or smth similar to all modification methods
+	TileLogicStack,
+	TileLogic,
+	ChunkLogic
+> {
 	
 	public abstract TileDataStack getData();