mirror of
https://github.com/PaperMC/Paper.git
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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
88 lines
5.7 KiB
Diff
88 lines
5.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Nassim Jahnke <nassim@njahnke.dev>
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Date: Sun, 19 Dec 2021 21:11:20 +0100
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Subject: [PATCH] Fix tripwire state inconsistency
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This patch prevents updating and re-setting the tripwire when being removed in certain conditions
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diff --git a/src/main/java/net/minecraft/world/level/block/TripWireBlock.java b/src/main/java/net/minecraft/world/level/block/TripWireBlock.java
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index bdb99b799d1a97f1340c3d388d2901f7cb1c3527..3cb1db27dba902678a5848a1fb5e2c6ec6241e60 100644
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--- a/src/main/java/net/minecraft/world/level/block/TripWireBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/TripWireBlock.java
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@@ -91,7 +91,7 @@ public class TripWireBlock extends Block {
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public void onRemove(BlockState state, Level world, BlockPos pos, BlockState newState, boolean moved) {
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if (io.papermc.paper.configuration.GlobalConfiguration.get().blockUpdates.disableTripwireUpdates) return; // Paper - prevent adjacent tripwires from updating
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if (!moved && !state.is(newState.getBlock())) {
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- this.updateSource(world, pos, (BlockState) state.setValue(TripWireBlock.POWERED, true));
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+ this.updateSource(world, pos, (BlockState) state.setValue(TripWireBlock.POWERED, true), true); // Paper - fix tripwire state inconsistency
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}
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}
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@@ -108,6 +108,12 @@ public class TripWireBlock extends Block {
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private void updateSource(Level world, BlockPos pos, BlockState state) {
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if (io.papermc.paper.configuration.GlobalConfiguration.get().blockUpdates.disableTripwireUpdates) return; // Paper - prevent adjacent tripwires from updating
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+ // Paper start - fix tripwire state inconsistency
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+ this.updateSource(world, pos, state, false);
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+ }
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+
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+ private void updateSource(Level world, BlockPos pos, BlockState state, boolean beingRemoved) {
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+ // Paper end - fix tripwire state inconsistency
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Direction[] aenumdirection = new Direction[]{Direction.SOUTH, Direction.WEST};
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int i = aenumdirection.length;
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int j = 0;
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@@ -123,7 +129,7 @@ public class TripWireBlock extends Block {
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if (iblockdata1.is(this.hook)) {
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if (iblockdata1.getValue(TripWireHookBlock.FACING) == enumdirection.getOpposite()) {
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- TripWireHookBlock.calculateState(world, blockposition1, iblockdata1, false, true, k, state);
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+ TripWireHookBlock.calculateState(world, blockposition1, iblockdata1, false, true, k, state, beingRemoved); // Paper - fix tripwire state inconsistency
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}
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} else if (iblockdata1.is((Block) this)) {
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++k;
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diff --git a/src/main/java/net/minecraft/world/level/block/TripWireHookBlock.java b/src/main/java/net/minecraft/world/level/block/TripWireHookBlock.java
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index d9b3877257b31ca1b5acc4a47fbf5b993de69ae0..7f2dcf6a9e69779e6f898284b58fb1e32902000c 100644
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--- a/src/main/java/net/minecraft/world/level/block/TripWireHookBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/TripWireHookBlock.java
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@@ -118,7 +118,13 @@ public class TripWireHookBlock extends Block {
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TripWireHookBlock.calculateState(world, pos, state, false, false, -1, (BlockState) null);
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}
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- public static void calculateState(Level world, BlockPos pos, BlockState state, boolean flag, boolean flag1, int i, @Nullable BlockState iblockdata1) {
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+ public static void calculateState(Level world, BlockPos pos, BlockState state, boolean beingRemoved, boolean flag1, int i, @Nullable BlockState iblockdata1) {
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+ // Paper start - fix tripwire state inconsistency
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+ calculateState(world, pos, state, beingRemoved, flag1, i, iblockdata1, false);
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+ }
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+
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+ public static void calculateState(Level world, BlockPos pos, BlockState state, boolean beingRemoved, boolean flag1, int i, @Nullable BlockState iblockdata1, boolean tripWireBeingRemoved) {
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+ // Paper end - fix tripwire state inconsistency
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Optional<Direction> optional = state.getOptionalValue(TripWireHookBlock.FACING);
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if (optional.isPresent()) {
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@@ -126,7 +132,7 @@ public class TripWireHookBlock extends Block {
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boolean flag2 = (Boolean) state.getOptionalValue(TripWireHookBlock.ATTACHED).orElse(false);
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boolean flag3 = (Boolean) state.getOptionalValue(TripWireHookBlock.POWERED).orElse(false);
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Block block = state.getBlock();
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- boolean flag4 = !flag;
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+ boolean flag4 = !beingRemoved; // Paper - fix tripwire state inconsistency
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boolean flag5 = false;
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int j = 0;
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BlockState[] aiblockdata = new BlockState[42];
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@@ -156,6 +162,7 @@ public class TripWireHookBlock extends Block {
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boolean flag7 = (Boolean) iblockdata2.getValue(TripWireBlock.POWERED);
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flag5 |= flag6 && flag7;
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+ if (k != i || !tripWireBeingRemoved || !flag6) // Paper - fix tripwire state inconsistency; don't update the tripwire again if being removed and not disarmed
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aiblockdata[k] = iblockdata2;
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if (k == i) {
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world.scheduleTick(pos, block, 10);
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@@ -187,7 +194,7 @@ public class TripWireHookBlock extends Block {
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// CraftBukkit end
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TripWireHookBlock.emitState(world, pos, flag4, flag5, flag2, flag3);
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- if (!flag) {
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+ if (!beingRemoved) { // Paper - fix tripwire state inconsistency
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if (world.getBlockState(pos).getBlock() == Blocks.TRIPWIRE_HOOK) // Paper - Validate tripwire hook placement before update
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world.setBlock(pos, (BlockState) iblockdata3.setValue(TripWireHookBlock.FACING, enumdirection), 3);
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if (flag1) {
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