From e2ec9f0c84cf2f04982b3dfcf087845c8c203a9d Mon Sep 17 00:00:00 2001
From: Sen <sen@sen.gay>
Date: Sun, 25 May 2025 18:40:34 +0200
Subject: [PATCH] test chunk array perf

---
 client/src/client/world/ChunkClient.java | 3 +++
 common/src/common/world/Chunk.java       | 8 ++++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/client/src/client/world/ChunkClient.java b/client/src/client/world/ChunkClient.java
index 8f59b89..29bae3e 100644
--- a/client/src/client/world/ChunkClient.java
+++ b/client/src/client/world/ChunkClient.java
@@ -1,5 +1,7 @@
 package client.world;
 
+import java.util.Arrays;
+
 import common.biome.Biome;
 import common.block.Block;
 import common.init.Blocks;
@@ -16,6 +18,7 @@ public class ChunkClient extends Chunk {
 	}
 	
 	private void clearArrays() {
+		Arrays.fill(this.core, null);
 		this.blocks.clearMap();
 		this.blockList.clear();
 		this.bottom = Integer.MAX_VALUE;
diff --git a/common/src/common/world/Chunk.java b/common/src/common/world/Chunk.java
index c70a379..dc95a7d 100755
--- a/common/src/common/world/Chunk.java
+++ b/common/src/common/world/Chunk.java
@@ -29,6 +29,7 @@ public abstract class Chunk {
 	protected final World world;
 	protected final State filler;
 	protected final Block fillerBlock;
+	protected final BlockArray[] core = new BlockArray[32];
 	protected final IntHashMap<BlockArray> blocks = new IntHashMap();
 	protected final Set<BlockArray> blockList = Sets.newHashSet();
 	protected final byte[] biomes = new byte[256];
@@ -69,12 +70,15 @@ public abstract class Chunk {
 	}
 	
 	public BlockArray getArray(int y) {
-		return this.blocks.lookup(y);
+		return y >= -16 && y < 16 ? this.core[y + 16] : this.blocks.lookup(y);
 	}
 	
 	protected void setArray(BlockArray array) {
 		int y = array.getY() >> 4;
-		this.blocks.addKey(y, array);
+		if(y >= -16 && y < 16)
+			this.core[y + 16] = array;
+		else
+			this.blocks.addKey(y, array);
 		this.blockList.add(array);
 		y <<= 4;
 		this.bottom = y < this.bottom ? y : this.bottom;