Paper/Spigot-Server-Patches/0306-Prevent-chunk-loading-from-Fluid-Flowing.patch
Spottedleaf 2f782a6652 Updated Upstream (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

CraftBukkit Changes:
17543ecf SPIGOT-5035: Error Using Virtual Merchant GUI
0fc6922b SPIGOT-5028: Villager#setVillagerExperience() doesn't work
bdbdbe44 SPIGOT-5024: Fox error - Unknown target reason
2019-06-06 16:56:51 +01:00

80 lines
4.3 KiB
Diff

From ec1a1b6e0fa26d95ea26b9438505f5193487447a 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 c76fa0b4bf..5f15143603 100644
--- a/src/main/java/net/minecraft/server/FluidTypeFlowing.java
+++ b/src/main/java/net/minecraft/server/FluidTypeFlowing.java
@@ -178,7 +178,8 @@ 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.getFluid(blockposition1), fluid1.getType())) {
// CraftBukkit start
@@ -205,7 +206,8 @@ 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.p();
if (fluid.getType().a((FluidType) this) && this.a(enumdirection, (IBlockAccess) iworldreader, blockposition, iblockdata, blockposition1, iblockdata1)) {
@@ -322,11 +324,19 @@ public abstract class FluidTypeFlowing extends FluidType {
if (enumdirection1 != enumdirection) {
BlockPosition blockposition2 = blockposition.shift(enumdirection1);
short short0 = a(blockposition1, blockposition2);
- Pair<IBlockData, Fluid> pair = (Pair) short2objectmap.computeIfAbsent(short0, (k) -> {
- IBlockData iblockdata1 = 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(iblockdata1, iblockdata1.p());
- });
+ pair = Pair.of(iblockdatax, iblockdatax.p());
+ short2objectmap.put(short0, pair);
+
+ }
+ // Paper end
IBlockData iblockdata1 = (IBlockData) pair.getFirst();
Fluid fluid = (Fluid) pair.getSecond();
@@ -398,11 +408,16 @@ public abstract class FluidTypeFlowing extends FluidType {
EnumDirection enumdirection = (EnumDirection) iterator.next();
BlockPosition blockposition1 = blockposition.shift(enumdirection);
short short0 = a(blockposition, blockposition1);
- Pair<IBlockData, Fluid> pair = (Pair) short2objectmap.computeIfAbsent(short0, (j) -> {
- IBlockData iblockdata1 = iworldreader.getType(blockposition1);
-
- return Pair.of(iblockdata1, iblockdata1.p());
- });
+ // Paper start
+ Pair pair = (Pair) short2objectmap.get(short0);
+ if (pair == null) {
+ IBlockData iblockdatax = iworldreader.getTypeIfLoaded(blockposition1);
+ if (iblockdatax == null) continue;
+
+ pair = Pair.of(iblockdatax, iblockdatax.p());
+ short2objectmap.put(short0, pair);
+ }
+ // Paper end
IBlockData iblockdata1 = (IBlockData) pair.getFirst();
Fluid fluid = (Fluid) pair.getSecond();
Fluid fluid1 = this.a(iworldreader, blockposition1, iblockdata1);
--
2.21.0