Paper/Spigot-Server-Patches/0357-Prevent-chunk-loading-from-Fluid-Flowing.patch
Zach Brown a2ad49b22f
Update upstream BD/B/CB/S
Note to other developers: This commit may require you to wipe your
workspace as a result of the changes to BD.

--- work/BuildData
Submodule work/BuildData f527a8ff..d56672db:
  > Mappings Update

--- work/Bukkit
Submodule work/Bukkit 0c1d258bb..db06c80d7:
  > Add list of entities to EntityTransformEvent
  > SPIGOT-4347: Add API to allow storing arbitrary values on ItemStacks

---work/CraftBukkit
Submodule work/CraftBukkit 6a398ac44..068dab5be:
  > Enable optional source JAR shading via profile shadeSourcesJar
  > Use ImmutableList rather than AbstractList for CraftMetaBook
  > Fix setRecipes(List) not setting Knowledge Book recipes.
  > Mappings Update
  > Add list of entities to EntityTransformEvent & move die calls
  > SPIGOT-4347: Add API to allow storing arbitrary values on ItemStacks
  > Add Vanilla help to default permissions

--- work/Spigot
Submodule work/Spigot a1f2566f6..e769fe4d9:
  > Mappings Update
  > Rebuild patches
2018-12-08 05:09:55 -05:00

80 lines
4.2 KiB
Diff

From ab6ded29658de4a666f701be4a17dc2c70571b88 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 8a6f79908..c1ed05d9e 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.getFluid(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();
--
2.19.2