Paper/Spigot-Server-Patches/0065-Optimize-getBlockData.patch

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From 5a12cc3597b9adaa7c33ca1a9a31da1b61e3ac4c Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
2016-03-01 00:09:49 +01:00
Date: Thu, 3 Mar 2016 02:07:55 -0600
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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
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--- 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 {
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return this.a(i, j, k).c();
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}
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+ // Paper - Optimize getBlockData
public IBlockData getBlockData(BlockPosition blockposition) {
- return this.a(blockposition.getX(), blockposition.getY(), blockposition.getZ());
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+ 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();
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}
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public IBlockData a(final int i, final int j, final int k) {
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--
2.7.4
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