From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Aikar 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 6f6358b3b24686cd8995cd71b6f7209b4227fc48..fb0784c8a4950776bd270bec3c80a8c5856c2655 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 pair = (Pair) short2objectmap.computeIfAbsent(short0, (short1) -> { - BlockState iblockdata1 = world.getBlockState(blockposition2); + // Paper start - avoid loading chunks + Pair 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 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);