From 20791ed88138dc2c598be6b7f9d6b98796fe1dde Mon Sep 17 00:00:00 2001
From: DmitriyMX <dimon550@gmail.com>
Date: Sun, 9 May 2021 18:43:57 +0300
Subject: [PATCH] VoidWorld, VoidChunk

---
 .../packets/server/ChunkDataPacket.java       | 41 ++++++++++++++++++-
 .../main/java/mc/server/world/VoidChunk.java  | 13 ++++++
 .../main/java/mc/server/world/VoidWorld.java  | 26 ++++++++++++
 3 files changed, 79 insertions(+), 1 deletion(-)
 create mode 100644 server/src/main/java/mc/server/world/VoidChunk.java
 create mode 100644 server/src/main/java/mc/server/world/VoidWorld.java

diff --git a/protocol/src/main/java/mc/protocol/packets/server/ChunkDataPacket.java b/protocol/src/main/java/mc/protocol/packets/server/ChunkDataPacket.java
index ca0eba2..cfcac8d 100644
--- a/protocol/src/main/java/mc/protocol/packets/server/ChunkDataPacket.java
+++ b/protocol/src/main/java/mc/protocol/packets/server/ChunkDataPacket.java
@@ -28,13 +28,17 @@ import mc.protocol.packets.ServerSidePacket;
 @Data
 public class ChunkDataPacket implements ServerSidePacket {
 
+	private static NetByteBuf voidData;
+
 	private int x;
 	private int z;
 
+	@SuppressWarnings("java:S125")
 	@Override
 	public void writeSelf(NetByteBuf netByteBuf) {
 		netByteBuf.writeInt(x);
 		netByteBuf.writeInt(z);
+		/* Временное отключение кода
 		netByteBuf.writeBoolean(true); // Is Full chunk
 		netByteBuf.writeVarInt(0b11111111); // Available Sections
 
@@ -64,6 +68,41 @@ public class ChunkDataPacket implements ServerSidePacket {
 		netByteBuf.writeVarInt(data.readableBytes()); // Size of Data
 		netByteBuf.writeBytes(data); // Data
 		netByteBuf.writeVarInt(0); // Number of block entities
-		/* write NBT's */
+		// write NBT's
+		 */
+
+		netByteBuf.writeBytes(voidData);
+
+		voidData.resetReaderIndex();
+		voidData.resetWriterIndex();
+	}
+
+	static {
+		voidData = new NetByteBuf(Unpooled.buffer());
+		voidData.writeBoolean(true); // Is Full chunk
+		voidData.writeVarInt(0b11111111); // Available Sections
+
+		NetByteBuf data = new NetByteBuf(Unpooled.buffer());
+		for (int i = 0; i < 16; i++) {
+			NetByteBuf dataBuff = new NetByteBuf(Unpooled.wrappedBuffer(new byte[4096]));
+			NetByteBuf blockLight = new NetByteBuf(Unpooled.wrappedBuffer(new byte[2048]));
+			NetByteBuf skyLight = new NetByteBuf(Unpooled.wrappedBuffer(new byte[2048]));
+			NetByteBuf biomes = new NetByteBuf(Unpooled.wrappedBuffer(new byte[256]));
+
+			data.writeUnsignedByte(13);
+			data.writeUnsignedByte(0);
+			data.writeVarInt(dataBuff.readableBytes());
+			data.writeBytes(dataBuff);
+			data.writeBytes(blockLight);
+			data.writeBytes(skyLight);
+			data.writeBytes(biomes);
+		}
+
+		voidData.writeVarInt(data.readableBytes());
+		voidData.writeBytes(data);
+		voidData.writeVarInt(0);
+
+		voidData.markReaderIndex();
+		voidData.markWriterIndex();
 	}
 }
diff --git a/server/src/main/java/mc/server/world/VoidChunk.java b/server/src/main/java/mc/server/world/VoidChunk.java
new file mode 100644
index 0000000..3ee5cb6
--- /dev/null
+++ b/server/src/main/java/mc/server/world/VoidChunk.java
@@ -0,0 +1,13 @@
+package mc.server.world;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import mc.protocol.world.Chunk;
+
+@RequiredArgsConstructor
+@Getter
+public class VoidChunk implements Chunk {
+
+	private final int x;
+	private final int z;
+}
diff --git a/server/src/main/java/mc/server/world/VoidWorld.java b/server/src/main/java/mc/server/world/VoidWorld.java
new file mode 100644
index 0000000..a2df89b
--- /dev/null
+++ b/server/src/main/java/mc/server/world/VoidWorld.java
@@ -0,0 +1,26 @@
+package mc.server.world;
+
+import mc.protocol.model.Location;
+import mc.protocol.utils.LevelType;
+import mc.protocol.world.Chunk;
+import mc.protocol.world.World;
+
+public class VoidWorld implements World {
+
+	private static final Location spawn = new Location(7d, 130d, 7d);
+
+	@Override
+	public LevelType getLevelType() {
+		return LevelType.FLAT;
+	}
+
+	@Override
+	public Location getSpawn() {
+		return VoidWorld.spawn;
+	}
+
+	@Override
+	public Chunk getChunk(int x, int z) {
+		return new VoidChunk(x, z);
+	}
+}