77 lines
4.4 KiB
Diff
77 lines
4.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Mon, 10 Sep 2018 23:36:16 -0400
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Subject: [PATCH] Prevent chunk loading from Fluid Flowing
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diff --git a/src/main/java/net/minecraft/world/level/material/FlowingFluid.java b/src/main/java/net/minecraft/world/level/material/FlowingFluid.java
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index 89296667d2ad76a706a3f5b817f3ad8c207cac2d..02be7c3d104fe3b3a2772201f5ebdfb6d16e9b49 100644
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--- a/src/main/java/net/minecraft/world/level/material/FlowingFluid.java
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+++ b/src/main/java/net/minecraft/world/level/material/FlowingFluid.java
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@@ -174,7 +174,8 @@ public abstract class FlowingFluid extends Fluid {
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Direction enumdirection = (Direction) entry.getKey();
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FluidState fluid1 = (FluidState) entry.getValue();
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BlockPos blockposition1 = pos.relative(enumdirection);
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- BlockState iblockdata1 = world.getBlockState(blockposition1);
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+ BlockState iblockdata1 = world.getBlockStateIfLoaded(blockposition1); // Paper
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+ if (iblockdata1 == null) continue; // Paper
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if (this.canSpreadTo(world, pos, blockState, enumdirection, blockposition1, iblockdata1, world.getFluidState(blockposition1), fluid1.getType())) {
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// CraftBukkit start
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@@ -201,7 +202,9 @@ public abstract class FlowingFluid extends Fluid {
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while (iterator.hasNext()) {
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Direction enumdirection = (Direction) iterator.next();
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BlockPos blockposition1 = pos.relative(enumdirection);
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- BlockState iblockdata1 = world.getBlockState(blockposition1);
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+
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+ BlockState iblockdata1 = world.getBlockStateIfLoaded(blockposition1); // Paper
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+ if (iblockdata1 == null) continue; // Paper
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FluidState fluid = iblockdata1.getFluidState();
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if (fluid.getType().isSame(this) && this.canPassThroughWall(enumdirection, world, pos, state, blockposition1, iblockdata1)) {
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@@ -318,11 +321,18 @@ public abstract class FlowingFluid extends Fluid {
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if (enumdirection1 != enumdirection) {
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BlockPos blockposition2 = blockposition.relative(enumdirection1);
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short short0 = FlowingFluid.getCacheKey(blockposition1, blockposition2);
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- Pair<BlockState, FluidState> pair = (Pair) short2objectmap.computeIfAbsent(short0, (short1) -> {
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- BlockState iblockdata1 = world.getBlockState(blockposition2);
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+ // Paper start - avoid loading chunks
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+ Pair<BlockState, FluidState> pair = short2objectmap.get(short0);
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+ if (pair == null) {
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+ BlockState iblockdatax = world.getBlockStateIfLoaded(blockposition2);
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+ if (iblockdatax == null) {
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+ continue;
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+ }
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- return Pair.of(iblockdata1, iblockdata1.getFluidState());
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- });
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+ pair = Pair.of(iblockdatax, iblockdatax.getFluidState());
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+ short2objectmap.put(short0, pair);
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+ }
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+ // Paper end
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BlockState iblockdata1 = (BlockState) pair.getFirst();
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FluidState fluid = (FluidState) pair.getSecond();
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@@ -394,11 +404,16 @@ public abstract class FlowingFluid extends Fluid {
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Direction enumdirection = (Direction) iterator.next();
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BlockPos blockposition1 = pos.relative(enumdirection);
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short short0 = FlowingFluid.getCacheKey(pos, blockposition1);
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- Pair<BlockState, FluidState> pair = (Pair) short2objectmap.computeIfAbsent(short0, (short1) -> {
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- BlockState iblockdata1 = world.getBlockState(blockposition1);
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-
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- return Pair.of(iblockdata1, iblockdata1.getFluidState());
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- });
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+ // Paper start
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+ Pair pair = (Pair) short2objectmap.get(short0);
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+ if (pair == null) {
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+ BlockState iblockdatax = world.getBlockStateIfLoaded(blockposition1);
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+ if (iblockdatax == null) continue;
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+
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+ pair = Pair.of(iblockdatax, iblockdatax.getFluidState());
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+ short2objectmap.put(short0, pair);
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+ }
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+ // Paper end
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BlockState iblockdata1 = (BlockState) pair.getFirst();
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FluidState fluid = (FluidState) pair.getSecond();
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FluidState fluid1 = this.getNewLiquid(world, blockposition1, iblockdata1);
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