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Prevent fluids from loading chunks - major performance boost

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Aikar 2018-09-10 23:38:16 -04:00
parent 2dd8623548
commit 87d59fdab4
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1 changed files with 79 additions and 0 deletions
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Spigot-Server-Patches/0366-Prevent-chunk-loading-from-Fluid-Flowing.patch Normal file
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@ -0,0 +1,79 @@
From cc6b3fdf5dfb4cc3f86348dc98fcebeb545621b2 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 10 Sep 2018 23:36:16 -0400
Subject: [PATCH] Prevent chunk loading from Fluid Flowing
diff --git a/src/main/java/net/minecraft/server/FluidTypeFlowing.java b/src/main/java/net/minecraft/server/FluidTypeFlowing.java
index 90ba7a346f..7f16dec688 100644
--- a/src/main/java/net/minecraft/server/FluidTypeFlowing.java
+++ b/src/main/java/net/minecraft/server/FluidTypeFlowing.java
@@ -186,7 +186,8 @@ public abstract class FluidTypeFlowing extends FluidType {
EnumDirection enumdirection = (EnumDirection) entry.getKey();
Fluid fluid1 = (Fluid) entry.getValue();
BlockPosition blockposition1 = blockposition.shift(enumdirection);
- IBlockData iblockdata1 = generatoraccess.getType(blockposition1);
+ IBlockData iblockdata1 = generatoraccess.getTypeIfLoaded(blockposition1); // Paper
+ if (iblockdata1 == null) continue; // Paper
if (this.a(generatoraccess, blockposition, iblockdata, enumdirection, blockposition1, iblockdata1, generatoraccess.b(blockposition1), fluid1.c())) {
// CraftBukkit start
@@ -213,7 +214,8 @@ public abstract class FluidTypeFlowing extends FluidType {
while (iterator.hasNext()) {
EnumDirection enumdirection = (EnumDirection) iterator.next();
BlockPosition blockposition1 = blockposition.shift(enumdirection);
- IBlockData iblockdata1 = iworldreader.getType(blockposition1);
+ IBlockData iblockdata1 = iworldreader.getTypeIfLoaded(blockposition1); // Paper
+ if (iblockdata1 == null) continue; // Paper
Fluid fluid = iblockdata1.s();
if (fluid.c().a((FluidType) this) && this.a(enumdirection, (IBlockAccess) iworldreader, blockposition, iblockdata, blockposition1, iblockdata1)) {
@@ -331,11 +333,19 @@ public abstract class FluidTypeFlowing extends FluidType {
BlockPosition blockposition2 = blockposition.shift(enumdirection1);
short short0 = a(blockposition1, blockposition2);
// CraftBukkit start - decompile errors
- Pair pair = (Pair) short2objectmap.computeIfAbsent(short0, (ix) -> {
- IBlockData iblockdatax = iworldreader.getType(blockposition2);
+ // Paper start - avoid loading chunks
+ Pair<IBlockData, Fluid> pair = short2objectmap.get(short0);
+ if (pair == null) {
+ IBlockData iblockdatax = iworldreader.getTypeIfLoaded(blockposition2);
+ if (iblockdatax == null) {
+ continue;
+ }
- return Pair.of(iblockdatax, iblockdatax.s());
- });
+ pair = Pair.of(iblockdatax, iblockdatax.s());
+ short2objectmap.put(short0, pair);
+
+ }
+ // Paper end
// CraftBukkit end
IBlockData iblockdata1 = (IBlockData) pair.getFirst();
Fluid fluid = (Fluid) pair.getSecond();
@@ -411,11 +421,16 @@ public abstract class FluidTypeFlowing extends FluidType {
BlockPosition blockposition1 = blockposition.shift(enumdirection);
short short0 = a(blockposition, blockposition1);
// CraftBukkit start - decompile errors
- Pair pair = (Pair) short2objectopenhashmap.computeIfAbsent(short0, (ix) -> {
- IBlockData iblockdatax = iworldreader.getType(blockposition1);
-
- return Pair.of(iblockdatax, iblockdatax.s());
- });
+ // Paper start
+ Pair pair = (Pair) short2objectopenhashmap.get(short0);
+ if (pair == null) {
+ IBlockData iblockdatax = iworldreader.getTypeIfLoaded(blockposition1);
+ if (iblockdatax == null) continue;
+
+ pair = Pair.of(iblockdatax, iblockdatax.s());
+ short2objectopenhashmap.put(short0, pair);
+ }
+ // Paper end
// CraftBukkit end
IBlockData iblockdata1 = (IBlockData) pair.getFirst();
Fluid fluid = (Fluid) pair.getSecond();
--
2.18.0