initial commit

java/src/game/worldgen/ChunkPrimer.java

@@ -0,0 +1,24 @@
+package game.worldgen;
+
+import game.init.BlockRegistry;
+import game.init.Blocks;
+import game.world.State;
+
+public class ChunkPrimer {
+	public final int height;
+	private final short[] data;
+	
+	public ChunkPrimer(int height) {
+		this.data = new short[Math.max(height, 256) * 256];
+		this.height = height;
+	}
+
+	public State get(int x, int y, int z) {
+		State state = BlockRegistry.STATEMAP.getByValue(this.data[x << 4 | z | y << 8]);
+		return state != null ? state : Blocks.air.getState();
+	}
+
+	public void set(int x, int y, int z, State state) {
+		this.data[x << 4 | z | y << 8] = (short)BlockRegistry.STATEMAP.get(state);
+	}
+}