Paper/patches/server/0259-Prevent-chunk-loading-from-Fluid-Flowing.patch
Nassim Jahnke 928bcc8d3a
Updated Upstream (Bukkit/CraftBukkit) (#8430)
Upstream has released updates that appear 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:
09943450 Update SnakeYAML version
5515734f SPIGOT-7162: Incorrect description for Entity#getVehicle javadoc
6f82b381 PR-788: Add getHand() to all relevant events

CraftBukkit Changes:
aaf484f6f SPIGOT-7163: CraftMerchantRecipe doesn't copy demand and specialPrice from BukkitMerchantRecipe
5329dd6fd PR-1107: Add getHand() to all relevant events
93061706e SPIGOT-7045: Ocelots never spawn with babies with spawn reason OCELOT_BABY
2022-10-02 09:56:36 +02:00

77 lines
4.4 KiB
Diff

From 0000000000000000000000000000000000000000 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/world/level/material/FlowingFluid.java b/src/main/java/net/minecraft/world/level/material/FlowingFluid.java
index 89296667d2ad76a706a3f5b817f3ad8c207cac2d..02be7c3d104fe3b3a2772201f5ebdfb6d16e9b49 100644
--- a/src/main/java/net/minecraft/world/level/material/FlowingFluid.java
+++ b/src/main/java/net/minecraft/world/level/material/FlowingFluid.java
@@ -174,7 +174,8 @@ public abstract class FlowingFluid extends Fluid {
Direction enumdirection = (Direction) entry.getKey();
FluidState fluid1 = (FluidState) entry.getValue();
BlockPos blockposition1 = pos.relative(enumdirection);
- BlockState iblockdata1 = world.getBlockState(blockposition1);
+ BlockState iblockdata1 = world.getBlockStateIfLoaded(blockposition1); // Paper
+ if (iblockdata1 == null) continue; // Paper
if (this.canSpreadTo(world, pos, blockState, enumdirection, blockposition1, iblockdata1, world.getFluidState(blockposition1), fluid1.getType())) {
// CraftBukkit start
@@ -201,7 +202,9 @@ public abstract class FlowingFluid extends Fluid {
while (iterator.hasNext()) {
Direction enumdirection = (Direction) iterator.next();
BlockPos blockposition1 = pos.relative(enumdirection);
- BlockState iblockdata1 = world.getBlockState(blockposition1);
+
+ BlockState iblockdata1 = world.getBlockStateIfLoaded(blockposition1); // Paper
+ if (iblockdata1 == null) continue; // Paper
FluidState fluid = iblockdata1.getFluidState();
if (fluid.getType().isSame(this) && this.canPassThroughWall(enumdirection, world, pos, state, blockposition1, iblockdata1)) {
@@ -318,11 +321,18 @@ public abstract class FlowingFluid extends Fluid {
if (enumdirection1 != enumdirection) {
BlockPos blockposition2 = blockposition.relative(enumdirection1);
short short0 = FlowingFluid.getCacheKey(blockposition1, blockposition2);
- Pair<BlockState, FluidState> pair = (Pair) short2objectmap.computeIfAbsent(short0, (short1) -> {
- BlockState iblockdata1 = world.getBlockState(blockposition2);
+ // Paper start - avoid loading chunks
+ Pair<BlockState, FluidState> pair = short2objectmap.get(short0);
+ if (pair == null) {
+ BlockState iblockdatax = world.getBlockStateIfLoaded(blockposition2);
+ if (iblockdatax == null) {
+ continue;
+ }
- return Pair.of(iblockdata1, iblockdata1.getFluidState());
- });
+ pair = Pair.of(iblockdatax, iblockdatax.getFluidState());
+ short2objectmap.put(short0, pair);
+ }
+ // Paper end
BlockState iblockdata1 = (BlockState) pair.getFirst();
FluidState fluid = (FluidState) pair.getSecond();
@@ -394,11 +404,16 @@ public abstract class FlowingFluid extends Fluid {
Direction enumdirection = (Direction) iterator.next();
BlockPos blockposition1 = pos.relative(enumdirection);
short short0 = FlowingFluid.getCacheKey(pos, blockposition1);
- Pair<BlockState, FluidState> pair = (Pair) short2objectmap.computeIfAbsent(short0, (short1) -> {
- BlockState iblockdata1 = world.getBlockState(blockposition1);
-
- return Pair.of(iblockdata1, iblockdata1.getFluidState());
- });
+ // Paper start
+ Pair pair = (Pair) short2objectmap.get(short0);
+ if (pair == null) {
+ BlockState iblockdatax = world.getBlockStateIfLoaded(blockposition1);
+ if (iblockdatax == null) continue;
+
+ pair = Pair.of(iblockdatax, iblockdatax.getFluidState());
+ short2objectmap.put(short0, pair);
+ }
+ // Paper end
BlockState iblockdata1 = (BlockState) pair.getFirst();
FluidState fluid = (FluidState) pair.getSecond();
FluidState fluid1 = this.getNewLiquid(world, blockposition1, iblockdata1);