From 086069acbe2c36b968bd5d853426ff8d38a8cd49 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 d55beb9..3806def 100644 --- a/src/main/java/net/minecraft/server/Chunk.java +++ b/src/main/java/net/minecraft/server/Chunk.java @@ -395,8 +395,15 @@ 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) { -- 2.8.2