From 5a12cc3597b9adaa7c33ca1a9a31da1b61e3ac4c Mon Sep 17 00:00:00 2001 From: Aikar Date: Thu, 3 Mar 2016 02:07:55 -0600 Subject: [PATCH] Optimize getBlockData Hot method, so reduce # of instructions for the method. diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java index 3b5e8c2..42fedb7 100644 --- a/src/main/java/net/minecraft/server/Chunk.java +++ b/src/main/java/net/minecraft/server/Chunk.java @@ -403,8 +403,15 @@ public class Chunk { return this.a(i, j, k).c(); } + // Paper - Optimize getBlockData public IBlockData getBlockData(BlockPosition blockposition) { - return this.a(blockposition.getX(), blockposition.getY(), blockposition.getZ()); + if (blockposition.getY() >= 0 && blockposition.getY() >> 4 < this.sections.length) { + ChunkSection chunksection = this.sections[blockposition.getY() >> 4]; + if (chunksection != null) { + return chunksection.getType(blockposition.getX() & 15, blockposition.getY() & 15, blockposition.getZ() & 15); + } + } + return Blocks.AIR.getBlockData(); } public IBlockData a(final int i, final int j, final int k) { -- 2.7.4