Paper/Spigot-Server-Patches/0073-Optimize-isValidLocation-getType-and-getBlockData-fo.patch
Zach Brown 70ce6ce831
Move version command update checking to the implementation
This makes it easier for downstream projects (forks) to replace the
version fetching system with their own. It is as simple as implementing
an interface and overriding the default implementation of
org.bukkit.UnsafeValues#getVersionFetcher()

It also makes it easier for us to organize things like the version
history feature.

Lastly I have updated the paper implementation to check against the site
API rather than against jenkins.
2019-05-27 04:13:41 -05:00

121 lines
5.2 KiB
Diff

From 4079f60167fbb6d4e223df14d2e925f6e3ab52f8 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 2852a17f2..7cb46d7a9 100644
--- a/src/main/java/net/minecraft/server/BaseBlockPosition.java
+++ b/src/main/java/net/minecraft/server/BaseBlockPosition.java
@@ -10,6 +10,14 @@ public class BaseBlockPosition implements Comparable<BaseBlockPosition> {
private final int a;
private final int b;
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/BlockPosition.java b/src/main/java/net/minecraft/server/BlockPosition.java
index c927d524a..64700b97c 100644
--- a/src/main/java/net/minecraft/server/BlockPosition.java
+++ b/src/main/java/net/minecraft/server/BlockPosition.java
@@ -339,6 +339,16 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
protected int b;
protected int c;
protected int d;
+ // Paper start
+ @Override
+ public boolean isValidLocation() {
+ return b >= -30000000 && d >= -30000000 && b < 30000000 && d < 30000000 && c >= 0 && c < 256;
+ }
+ @Override
+ public boolean isInvalidYLocation() {
+ return c < 0 || c >= 256;
+ }
+ // Paper end
public MutableBlockPosition() {
this(0, 0, 0);
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index d246970d3..c211f8a43 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -203,12 +203,24 @@ 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 30701fd7f..43f75fc83 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; // Paper - package
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 e43b1d27c..6e655d292 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -197,11 +197,11 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
}
public static boolean isValidLocation(BlockPosition blockposition) {
- return !isOutsideWorld(blockposition) && blockposition.getX() >= -30000000 && blockposition.getZ() >= -30000000 && blockposition.getX() < 30000000 && blockposition.getZ() < 30000000;
+ return blockposition.isValidLocation(); // Paper
}
public static boolean isOutsideWorld(BlockPosition blockposition) {
- return b(blockposition.getY());
+ return blockposition.isInvalidYLocation(); // Paper
}
public static boolean b(int i) {
--
2.21.0