papermc/Spigot-Server-Patches/0072-Optimize-isValidLocation-getType-and-getBlockData-fo.patch
Aikar 57dd397155
Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
b999860d SPIGOT-2304: Add LootGenerateEvent

CraftBukkit Changes:
77fd87e4 SPIGOT-2304: Implement LootGenerateEvent
a1a705ee SPIGOT-5566: Doused campfires & fires should call EntityChangeBlockEvent
41712edd SPIGOT-5707: PersistentDataHolder not Persistent on API dropped Item
2020-05-01 18:03:57 -04:00

99 lines
4.3 KiB
Diff

From 1e4ea523df36a1139d0fd88aefe3e9848c908748 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 3 Mar 2016 02:07:55 -0600
Subject: [PATCH] Optimize isValidLocation, getType and getBlockData for inling
Hot methods, so reduce # of instructions for the method.
Move is valid location test to the BlockPosition class so that it can access local variables.
Replace all calls to the new place to the unnecessary forward.
Optimize getType and getBlockData to manually inline and optimize the calls
diff --git a/src/main/java/net/minecraft/server/BaseBlockPosition.java b/src/main/java/net/minecraft/server/BaseBlockPosition.java
index a3b5793e48..71089442c1 100644
--- a/src/main/java/net/minecraft/server/BaseBlockPosition.java
+++ b/src/main/java/net/minecraft/server/BaseBlockPosition.java
@@ -13,6 +13,14 @@ public class BaseBlockPosition implements Comparable<BaseBlockPosition> {
private final int b;
@Deprecated
private final int c;
+ // Paper start
+ public boolean isValidLocation() {
+ return a >= -30000000 && c >= -30000000 && a < 30000000 && c < 30000000 && b >= 0 && b < 256;
+ }
+ public boolean isInvalidYLocation() {
+ return b < 0 || b >= 256;
+ }
+ // Paper end
public BaseBlockPosition(int i, int j, int k) {
this.a = i;
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 39e77f8248..7ddf6592f7 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -290,12 +290,24 @@ public class Chunk implements IChunkAccess {
return this.sections;
}
- @Override
+ // Paper start - Optimize getBlockData to reduce instructions
+ public final IBlockData getBlockData(BlockPosition pos) { return getBlockData(pos.getX(), pos.getY(), pos.getZ()); } // Paper
public IBlockData getType(BlockPosition blockposition) {
- int i = blockposition.getX();
- int j = blockposition.getY();
- int k = blockposition.getZ();
+ return this.getBlockData(blockposition.getX(), blockposition.getY(), blockposition.getZ());
+ }
+ public final IBlockData getBlockData(final int x, final int y, final int z) {
+ // Method body / logic copied from below
+ final int i = y >> 4;
+ if (y >= 0 && i < this.sections.length && this.sections[i] != null) {
+ // Inlined ChunkSection.getType() and DataPaletteBlock.a(int,int,int)
+ return this.sections[i].blockIds.a((y & 15) << 8 | (z & 15) << 4 | x & 15);
+ }
+ return Blocks.AIR.getBlockData();
+ }
+
+ public IBlockData getBlockData_unused(int i, int j, int k) {
+ // Paper end
if (this.world.P() == WorldType.DEBUG_ALL_BLOCK_STATES) {
IBlockData iblockdata = null;
diff --git a/src/main/java/net/minecraft/server/ChunkSection.java b/src/main/java/net/minecraft/server/ChunkSection.java
index 652067757a..0d5deee365 100644
--- a/src/main/java/net/minecraft/server/ChunkSection.java
+++ b/src/main/java/net/minecraft/server/ChunkSection.java
@@ -9,7 +9,7 @@ public class ChunkSection {
private short nonEmptyBlockCount;
private short tickingBlockCount;
private short e;
- private final DataPaletteBlock<IBlockData> blockIds;
+ final DataPaletteBlock<IBlockData> blockIds;
public ChunkSection(int i) {
this(i, (short) 0, (short) 0, (short) 0);
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index e7337fc368..6b1ff8f64f 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -171,11 +171,11 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
}
public static boolean isValidLocation(BlockPosition blockposition) {
- return !isOutsideWorld(blockposition) && blockposition.getX() >= -30000000 && blockposition.getZ() >= -30000000 && blockposition.getX() < 30000000 && blockposition.getZ() < 30000000;
+ return blockposition.isValidLocation();
}
public static boolean isOutsideWorld(BlockPosition blockposition) {
- return b(blockposition.getY());
+ return blockposition.isInvalidYLocation();
}
public static boolean b(int i) {
--
2.26.2