update chunk data types

src/main/java/de/bixilon/minosoft/game/datatypes/BlockPosition.java

@@ -33,4 +33,8 @@ public class BlockPosition {
         BlockPosition pos = (BlockPosition) obj;
         return pos.getX() == getX() && pos.getY() == getY() && pos.getZ() == getZ();
     }
+
+    public ChunkLocation getChunkLocation() {
+        return new ChunkLocation(getX() / 16, getZ() / 16);
+    }
 }

src/main/java/de/bixilon/minosoft/game/datatypes/Chunk.java

@@ -1,22 +1,33 @@
 package de.bixilon.minosoft.game.datatypes;
 
+import de.bixilon.minosoft.game.datatypes.blocks.Block;
+
 import java.util.HashMap;
 
 /**
- * Collection of 16x16x16 blocks
+ * Collection of 16 chunks
  */
 public class Chunk {
-    private final HashMap<ChunkLocation, WorldBlock> blocks;
+    private final HashMap<Byte, ChunkNibble> chunks;
 
-    public Chunk(HashMap<ChunkLocation, WorldBlock> blocks) {
-        this.blocks = blocks;
+    public Chunk(HashMap<Byte, ChunkNibble> chunks) {
+        this.chunks = chunks;
     }
 
-    public WorldBlock getWorldBlock(ChunkLocation loc) {
-        return blocks.get(loc);
+    public Block getBlock(int x, int y, int z) {
+        if (x > 16 || y > 255 || z > 16 || x < 0 || y < 0 || z < 0) {
+            throw new IllegalArgumentException(String.format("Invalid chunk location %s %s %s", x, y, z));
+        }
+        byte section = (byte) (y / 16);
+        if (section == 0) {
+            return Block.COBBLESTONE;
+        } else if (section == 1) {
+            return Block.DIRT;
+        } else {
+            return Block.AIR;
+        }
+        //ToDo
+        //return chunks.get(section).getBlock(x, y % 16,z);
     }
 
-    public WorldBlock getWorldBlock(byte x, byte y, byte z) {
-        return getWorldBlock(new ChunkLocation(x, y, z));
-    }
 }

src/main/java/de/bixilon/minosoft/game/datatypes/ChunkColumn.java

@@ -1,36 +0,0 @@
-package de.bixilon.minosoft.game.datatypes;
-
-import de.bixilon.minosoft.game.datatypes.blocks.Blocks;
-
-import java.util.HashMap;
-
-/**
- * Collection of 16 chunks
- */
-public class ChunkColumn {
-    private final HashMap<Byte, Chunk> chunks;
-    final int x;
-    final int z;
-
-    public ChunkColumn(int x, int z) {
-        chunks = new HashMap<>();
-        this.x = x;
-        this.z = z;
-    }
-
-    public WorldBlock getWorldBlock(byte x, short y, byte z) {
-        if (x > 16 || y > 255 || z > 16 || x < 0 || y < 0 || z < 0) {
-            throw new IllegalArgumentException(String.format("Invalid chunk location %s %s %s", x, y, z));
-        }
-        byte heightNumber = (byte) (y / 16);
-        BlockPosition pos = new BlockPosition(this.x * 16 + x, y, this.z * 16 + z);
-        if (heightNumber == 0) {
-            return Blocks.getBlockInstance(Blocks.DIRT, pos);
-        } else {
-            return Blocks.getBlockInstance(Blocks.AIR, pos);
-        }
-        //ToDo
-        //return chunks.get(heightNumber).getWorldBlock(x, (byte) (y - (heightNumber * 16)), z);
-    }
-
-}

src/main/java/de/bixilon/minosoft/game/datatypes/ChunkColumnLocation.java

@@ -1,31 +0,0 @@
-package de.bixilon.minosoft.game.datatypes;
-
-/**
- * Chunk X and Z location (block position / 16, rounded down)
- */
-public class ChunkColumnLocation {
-    int x;
-    int z;
-
-    public ChunkColumnLocation(int x, int z) {
-        this.x = x;
-        this.z = z;
-    }
-
-    public int getX() {
-        return x;
-    }
-
-    public int getZ() {
-        return z;
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (super.equals(obj)) {
-            return true;
-        }
-        ChunkColumnLocation that = (ChunkColumnLocation) obj;
-        return getX() == that.getX() && getZ() == that.getZ();
-    }
-}

src/main/java/de/bixilon/minosoft/game/datatypes/ChunkLocation.java

@@ -1,28 +1,22 @@
 package de.bixilon.minosoft.game.datatypes;
 
 /**
- * Chunk X, Y and Z location (max 16x16x16)
+ * Chunk X and Z location (block position / 16, rounded down)
  */
 public class ChunkLocation {
-    byte x;
-    byte y;
-    byte z;
+    int x;
+    int z;
 
-    public ChunkLocation(byte x, byte y, byte z) {
+    public ChunkLocation(int x, int z) {
         this.x = x;
-        this.y = y;
         this.z = z;
     }
 
-    public byte getX() {
+    public int getX() {
         return x;
     }
 
-    public byte getY() {
-        return y;
-    }
-
-    public byte getZ() {
+    public int getZ() {
         return z;
     }
 
@@ -32,6 +26,6 @@ public class ChunkLocation {
             return true;
         }
         ChunkLocation that = (ChunkLocation) obj;
-        return getX() == that.getX() && getY() == that.getY() && getZ() == that.getZ();
+        return getX() == that.getX() && getZ() == that.getZ();
     }
 }

src/main/java/de/bixilon/minosoft/game/datatypes/ChunkNibble.java

@@ -0,0 +1,24 @@
+package de.bixilon.minosoft.game.datatypes;
+
+import de.bixilon.minosoft.game.datatypes.blocks.Block;
+
+import java.util.HashMap;
+
+/**
+ * Collection of 16x16x16 blocks
+ */
+public class ChunkNibble {
+    private final HashMap<ChunkNibbleLocation, Block> blocks;
+
+    public ChunkNibble(HashMap<ChunkNibbleLocation, Block> blocks) {
+        this.blocks = blocks;
+    }
+
+    public Block getBlock(ChunkNibbleLocation loc) {
+        return blocks.get(loc);
+    }
+
+    public Block getBlock(int x, int y, int z) {
+        return getBlock(new ChunkNibbleLocation(x, y, z));
+    }
+}

src/main/java/de/bixilon/minosoft/game/datatypes/ChunkNibbleLocation.java

@@ -0,0 +1,37 @@
+package de.bixilon.minosoft.game.datatypes;
+
+/**
+ * Chunk X, Y and Z location (max 16x16x16)
+ */
+public class ChunkNibbleLocation {
+    int x;
+    int y;
+    int z;
+
+    public ChunkNibbleLocation(int x, int y, int z) {
+        this.x = x;
+        this.y = y;
+        this.z = z;
+    }
+
+    public int getX() {
+        return x;
+    }
+
+    public int getY() {
+        return y;
+    }
+
+    public int getZ() {
+        return z;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (super.equals(obj)) {
+            return true;
+        }
+        ChunkNibbleLocation that = (ChunkNibbleLocation) obj;
+        return getX() == that.getX() && getY() == that.getY() && getZ() == that.getZ();
+    }
+}

src/main/java/de/bixilon/minosoft/game/datatypes/Identifier.java

@@ -0,0 +1,35 @@
+package de.bixilon.minosoft.game.datatypes;
+
+public class Identifier {
+    final String legacy;
+    String mod = "minecraft"; // by default minecraft
+    String water;
+
+    public Identifier(String mod, String legacy, String water) { // water for water update name (post 1.13.x)
+        this.mod = mod;
+        this.legacy = legacy;
+        this.water = water;
+    }
+
+    public Identifier(String legacy, String water) {
+        this.legacy = legacy;
+        this.water = water;
+    }
+
+    public Identifier(String name) {
+        // legacy and water are the same
+        this.legacy = name;
+    }
+
+    public String getMod() {
+        return mod;
+    }
+
+    public String getLegacy() {
+        return legacy;
+    }
+
+    public String getWaterUpdateName() {
+        return ((water == null) ? legacy : water);
+    }
+}

src/main/java/de/bixilon/minosoft/game/datatypes/World.java

@@ -1,12 +1,14 @@
 package de.bixilon.minosoft.game.datatypes;
 
+import de.bixilon.minosoft.game.datatypes.blocks.Block;
+
 import java.util.HashMap;
 
 /**
  * Collection of ChunkColumns
  */
 public class World {
-    public final HashMap<ChunkColumnLocation, ChunkColumn> chunks;
+    public final HashMap<ChunkLocation, Chunk> chunks;
     final String name;
 
     public World(String name) {
@@ -18,9 +20,16 @@ public class World {
         return name;
     }
 
-    public ChunkColumn getChunkColumn(ChunkColumnLocation loc) {
-        return new ChunkColumn(loc.getX(), loc.getZ());
+    public Chunk getChunk(ChunkLocation loc) {
+        return chunks.get(loc);
+    }
+
+    public Block getBlock(BlockPosition pos) {
         //ToDo
-        //return chunks.get(loc);
+        ChunkLocation loc = pos.getChunkLocation();
+        if (getChunk(loc) != null) {
+            return getChunk(loc).getBlock(pos.getX() % 16, pos.getX(), pos.getZ() % 16);
+        }
+        return Block.AIR;
     }
 }

src/main/java/de/bixilon/minosoft/game/datatypes/WorldBlock.java

@@ -1,8 +0,0 @@
-package de.bixilon.minosoft.game.datatypes;
-
-/**
- * Basically raw chunk stuff. This is not a block like dirt (it can be). Can be dirt, a flower, fire, torch, sapling, fluid (water/lava), nether wart, banner, ...
- */
-public interface WorldBlock {
-    BlockPosition getBlockPosition();
-}

src/main/java/de/bixilon/minosoft/game/datatypes/blocks/Air.java

@@ -1,26 +0,0 @@
-package de.bixilon.minosoft.game.datatypes.blocks;
-
-import de.bixilon.minosoft.game.datatypes.BlockPosition;
-
-public class Air implements Block {
-    final BlockPosition position;
-
-    public Air(BlockPosition position) {
-        this.position = position;
-    }
-
-    @Override
-    public BlockPosition getBlockPosition() {
-        return position;
-    }
-
-    @Override
-    public int getLegacyId() {
-        return 0;
-    }
-
-    @Override
-    public String getLegacyIdentifier() {
-        return "minecraft:air";
-    }
-}

src/main/java/de/bixilon/minosoft/game/datatypes/blocks/Block.java

@@ -1,11 +1,52 @@
 package de.bixilon.minosoft.game.datatypes.blocks;
 
-import de.bixilon.minosoft.game.datatypes.WorldBlock;
+import de.bixilon.minosoft.game.datatypes.Identifier;
 
-public interface Block extends WorldBlock {
+public enum Block {
+    AIR(new Identifier("air"), 0),
+    DIRT(new Identifier("stone"), 1),
+    GRASS(new Identifier("grass"), 2),
+    COBBLESTONE(new Identifier("stone"), 4),
+    WHITE_WOOL(new Identifier("wool"), 35, 0),
+    RED_WOOL(new Identifier("wool", "red_wool"), 35, 14),
+    DROPPER(new Identifier("dropper", "dropper"), 158, BlockRotation.RotationType.NORMAL);
 
-    String getLegacyIdentifier();
+    Identifier identifier;
+    int legacyId;
+    int legacyData;
+    BlockRotation.RotationType rotationType;
 
-    int getLegacyId();
+    Block(Identifier identifier, int legacyId, BlockRotation.RotationType rotationType) {
+        this.identifier = identifier;
+        this.legacyId = legacyId;
+        this.rotationType = rotationType;
+    }
 
-}
+    Block(Identifier identifier, int legacyId, int legacyData) {
+        this.identifier = identifier;
+        this.legacyId = legacyId;
+        this.legacyData = legacyData;
+    }
+
+    Block(Identifier identifier, int legacyId) {
+        this.identifier = identifier;
+        this.legacyId = legacyId;
+    }
+
+    public Identifier getIdentifier() {
+        return identifier;
+    }
+
+
+    public int getLegacyId() {
+        return legacyId;
+    }
+
+    public int getLegacyData() {
+        return legacyData;
+    }
+
+    public BlockRotation.RotationType getRotationType() {
+        return rotationType;
+    }
+}

src/main/java/de/bixilon/minosoft/game/datatypes/blocks/BlockRotation.java

@@ -0,0 +1,104 @@
+package de.bixilon.minosoft.game.datatypes.blocks;
+
+public interface BlockRotation {
+
+    int getId();
+
+    enum RotationType {
+        BARELY,
+        NORMAL,
+        EXTENDED
+    }
+
+    enum Barely implements BlockRotation {
+        EAST(0),
+        NORTH(1),
+        SOUTH(2),
+        WEST(3);
+
+        int id;
+
+        Barely(int id) {
+            this.id = id;
+        }
+
+        public static Barely byId(int id) {
+            for (Barely b : values()) {
+                if (b.getId() == id) {
+                    return b;
+                }
+            }
+            return null;
+        }
+
+        public int getId() {
+            return id;
+        }
+    }
+
+    enum Normal implements BlockRotation {
+        DOWN(0),
+        EAST(1),
+        NORTH(2),
+        SOUTH(3),
+        UP(4),
+        WEST(5);
+
+        int id;
+
+        Normal(int id) {
+            this.id = id;
+        }
+
+        public static Normal byId(int id) {
+            for (Normal n : values()) {
+                if (n.getId() == id) {
+                    return n;
+                }
+            }
+            return null;
+        }
+
+        public int getId() {
+            return id;
+        }
+    }
+
+    enum Extended implements BlockRotation {
+        SOUTH(0),
+        SOUTH_SOUTH_WEST(1),
+        SOUTH_WEST(2),
+        WEST_SOUTH_WEST(3),
+        WEST(4),
+        WEST_NORTH_WEST(5),
+        NORTH_WEST(6),
+        NORTH_NORTH_WEST(7),
+        NORTH(8),
+        NORTH_NORTH_EAST(9),
+        NORTH_EAST(10),
+        EAST_NORTH_EAST(11),
+        EAST(12),
+        EAST_SOUTH_EAST(13),
+        SOUTH_EAST(14),
+        SOUTH_SOUTH_EAST(15);
+
+        int id;
+
+        Extended(int id) {
+            this.id = id;
+        }
+
+        public static Extended byId(int id) {
+            for (Extended e : values()) {
+                if (e.getId() == id) {
+                    return e;
+                }
+            }
+            return null;
+        }
+
+        public int getId() {
+            return id;
+        }
+    }
+}

src/main/java/de/bixilon/minosoft/game/datatypes/blocks/Blocks.java

@@ -1,33 +0,0 @@
-package de.bixilon.minosoft.game.datatypes.blocks;
-
-import de.bixilon.minosoft.game.datatypes.BlockPosition;
-
-import java.lang.reflect.InvocationTargetException;
-
-public enum Blocks {
-    DIRT(Dirt.class),
-    AIR(Air.class);
-
-    private final Class<? extends Block> clazz;
-
-    Blocks(Class<? extends Block> clazz) {
-        this.clazz = clazz;
-    }
-
-    public static Block getBlockInstance(Class<? extends Block> clazz, BlockPosition pos) {
-        try {
-            return clazz.getConstructor(BlockPosition.class).newInstance(pos);
-        } catch (InstantiationException | IllegalAccessException | InvocationTargetException | NoSuchMethodException e) {
-            e.printStackTrace();
-            throw new RuntimeException("Invalid block constructor!");
-        }
-    }
-
-    public static Block getBlockInstance(Blocks b, BlockPosition pos) {
-        return getBlockInstance(b.getClazz(), pos);
-    }
-
-    public Class<? extends Block> getClazz() {
-        return clazz;
-    }
-}

src/main/java/de/bixilon/minosoft/game/datatypes/blocks/Dirt.java

@@ -1,26 +0,0 @@
-package de.bixilon.minosoft.game.datatypes.blocks;
-
-import de.bixilon.minosoft.game.datatypes.BlockPosition;
-
-public class Dirt implements Block {
-    final BlockPosition position;
-
-    public Dirt(BlockPosition position) {
-        this.position = position;
-    }
-
-    @Override
-    public BlockPosition getBlockPosition() {
-        return position;
-    }
-
-    @Override
-    public int getLegacyId() {
-        return 0;
-    }
-
-    @Override
-    public String getLegacyIdentifier() {
-        return "minecraft:dirt";
-    }
-}

src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PlayChunkBulk.java

@@ -0,0 +1,93 @@
+package de.bixilon.minosoft.protocol.packets.clientbound.play;
+
+import de.bixilon.minosoft.logging.Log;
+import de.bixilon.minosoft.protocol.packets.ClientboundPacket;
+import de.bixilon.minosoft.protocol.protocol.InByteBuffer;
+import de.bixilon.minosoft.protocol.protocol.InPacketBuffer;
+import de.bixilon.minosoft.protocol.protocol.PacketHandler;
+import de.bixilon.minosoft.protocol.protocol.ProtocolVersion;
+import de.bixilon.minosoft.util.BitByte;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.zip.DataFormatException;
+import java.util.zip.Inflater;
+
+public class PlayChunkBulk implements ClientboundPacket {
+    short chunkColumnCount;
+
+
+    @Override
+    public void read(InPacketBuffer buffer, ProtocolVersion v) {
+        switch (v) {
+            case VERSION_1_7_10:
+                // ToDo only implement once, not twice (chunk data and chunk bulk)
+                this.chunkColumnCount = buffer.readShort();
+                int dataLen = buffer.readInteger();
+                boolean containsSkyLight = buffer.readBoolean();
+                byte[] data = buffer.readBytes(dataLen);
+
+                // decompressing chunk data
+                Inflater inflater = new Inflater();
+                inflater.setInput(data, 0, dataLen);
+                byte[] result = new byte[4096];
+                ByteArrayOutputStream stream = new ByteArrayOutputStream(dataLen);
+                try {
+                    while (!inflater.finished()) {
+                        stream.write(result, 0, inflater.inflate(result));
+                    }
+                } catch (DataFormatException e) {
+                    e.printStackTrace();
+                } finally {
+                    try {
+                        stream.close();
+                    } catch (IOException e) {
+                        e.printStackTrace();
+                    }
+                }
+
+                InByteBuffer decompressed = new InByteBuffer(stream.toByteArray());
+
+                // chunk meta data
+                for (int i = 0; i < chunkColumnCount; i++) {
+                    int x = buffer.readInteger();
+                    int y = buffer.readInteger();
+                    short primaryBitMask = buffer.readShort();
+                    short addBitMask = buffer.readShort();
+                    System.out.println(String.format("Meta data: %s %s", x, y));
+
+                    for (int c = 0; c < 16; c++) { // max sections per chunks in chunk column
+                        if (BitByte.isBitSet(primaryBitMask, c)) {
+                            short[] blockType = BitByte.byteArrayToShortArray(decompressed.readBytes(4096)); // 16 * 16 * 16
+                            byte[] metadata = decompressed.readBytes(2048); // 16 * 16 * 16 / 2 (only half bit per block)
+                            byte[] light;
+                            if (containsSkyLight) {
+                                light = decompressed.readBytes(2048);
+                            }
+                            byte[] addBlockType;
+                            if (BitByte.isBitSet(addBitMask, c)) {
+                                addBlockType = decompressed.readBytes(2048);
+                            }
+                            byte[] biome = decompressed.readBytes(256);
+
+
+                        }
+
+                    }
+                }
+
+                break;
+        }
+        log();
+    }
+
+    @Override
+    public void log() {
+        Log.protocol(String.format("Chunk bulk packet received (chunks: %s)", chunkColumnCount));
+    }
+
+    @Override
+    public void handle(PacketHandler h) {
+        h.handle(this);
+    }
+}

src/main/java/de/bixilon/minosoft/protocol/protocol/PacketHandler.java

@@ -5,10 +5,7 @@ import de.bixilon.minosoft.protocol.network.Connection;
 import de.bixilon.minosoft.protocol.packets.clientbound.login.PacketEncryptionKeyRequest;
 import de.bixilon.minosoft.protocol.packets.clientbound.login.PacketLoginDisconnect;
 import de.bixilon.minosoft.protocol.packets.clientbound.login.PacketLoginSuccess;
-import de.bixilon.minosoft.protocol.packets.clientbound.play.PacketJoinGame;
-import de.bixilon.minosoft.protocol.packets.clientbound.play.PacketKeepAlive;
-import de.bixilon.minosoft.protocol.packets.clientbound.play.PacketPlayerInfo;
-import de.bixilon.minosoft.protocol.packets.clientbound.play.PacketTimeUpdate;
+import de.bixilon.minosoft.protocol.packets.clientbound.play.*;
 import de.bixilon.minosoft.protocol.packets.clientbound.status.PacketStatusPong;
 import de.bixilon.minosoft.protocol.packets.clientbound.status.PacketStatusResponse;
 import de.bixilon.minosoft.protocol.packets.serverbound.login.PacketEncryptionResponse;
@@ -68,4 +65,7 @@ public class PacketHandler {
     public void handle(PacketKeepAlive pkg) {
         connection.sendPacket(new PacketKeepAliveResponse(pkg.getId()));
     }
+
+    public void handle(PlayChunkBulk pkg) {
+    }
 }

src/main/java/de/bixilon/minosoft/protocol/protocol/Protocol.java

@@ -4,10 +4,7 @@ import de.bixilon.minosoft.protocol.packets.ClientboundPacket;
 import de.bixilon.minosoft.protocol.packets.clientbound.login.PacketEncryptionKeyRequest;
 import de.bixilon.minosoft.protocol.packets.clientbound.login.PacketLoginDisconnect;
 import de.bixilon.minosoft.protocol.packets.clientbound.login.PacketLoginSuccess;
-import de.bixilon.minosoft.protocol.packets.clientbound.play.PacketJoinGame;
-import de.bixilon.minosoft.protocol.packets.clientbound.play.PacketKeepAlive;
-import de.bixilon.minosoft.protocol.packets.clientbound.play.PacketPlayerInfo;
-import de.bixilon.minosoft.protocol.packets.clientbound.play.PacketTimeUpdate;
+import de.bixilon.minosoft.protocol.packets.clientbound.play.*;
 import de.bixilon.minosoft.protocol.packets.clientbound.status.PacketStatusPong;
 import de.bixilon.minosoft.protocol.packets.clientbound.status.PacketStatusResponse;
 
@@ -41,5 +38,6 @@ public interface Protocol {
         packetClassMapping.put(Packets.Clientbound.PLAY_PLAYER_INFO, PacketPlayerInfo.class);
         packetClassMapping.put(Packets.Clientbound.PLAY_TIME_UPDATE, PacketTimeUpdate.class);
         packetClassMapping.put(Packets.Clientbound.PLAY_KEEP_ALIVE, PacketKeepAlive.class);
+        packetClassMapping.put(Packets.Clientbound.PLAY_CHUNK_BULK, PlayChunkBulk.class);
     }
 }

src/main/java/de/bixilon/minosoft/util/BitByte.java

@@ -1,10 +1,18 @@
 package de.bixilon.minosoft.util;
 
 public class BitByte {
-    public static boolean isBitSet(byte in, int pos) {
+    public static boolean isBitSet(int in, int pos) {
         boolean bitSet;
         int mask = 1 << pos;
         bitSet = ((in & mask) == mask);
         return bitSet;
     }
+
+    public static short[] byteArrayToShortArray(byte[] readBytes) {
+        short[] ret = new short[readBytes.length];
+        for (int i = 0; i < readBytes.length; i++) {
+            ret[0] = readBytes[0];
+        }
+        return ret;
+    }
 }