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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.
85 lines
4.4 KiB
Diff
85 lines
4.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Fri, 24 Jul 2020 15:56:05 -0700
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Subject: [PATCH] Fix some rails connecting improperly
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diff --git a/src/main/java/net/minecraft/world/level/block/BaseRailBlock.java b/src/main/java/net/minecraft/world/level/block/BaseRailBlock.java
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index d8dd9f26fe4344541d0544e35bbc66c5d567a80b..6bd4e4d173f34e0234f4474e49ce2d897f85386f 100644
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--- a/src/main/java/net/minecraft/world/level/block/BaseRailBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/BaseRailBlock.java
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@@ -68,6 +68,7 @@ public abstract class BaseRailBlock extends Block implements SimpleWaterloggedBl
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state = this.updateDir(world, pos, state, true);
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if (this.isStraight) {
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world.neighborChanged(state, pos, this, pos, notify);
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+ state = world.getBlockState(pos); // Paper - Fix some rails connecting improperly
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}
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return state;
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diff --git a/src/main/java/net/minecraft/world/level/block/DetectorRailBlock.java b/src/main/java/net/minecraft/world/level/block/DetectorRailBlock.java
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index 41452abc7b761858ff2f3ff6a833b09c16fded4f..17242c24d73c9ffb1c976a45925f85d1aa9e96b3 100644
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--- a/src/main/java/net/minecraft/world/level/block/DetectorRailBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/DetectorRailBlock.java
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@@ -77,6 +77,7 @@ public class DetectorRailBlock extends BaseRailBlock {
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private void checkPressed(Level world, BlockPos pos, BlockState state) {
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if (this.canSurvive(state, world, pos)) {
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+ if (state.getBlock() != this) { return; } // Paper - Fix some rails connecting improperly
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boolean flag = (Boolean) state.getValue(DetectorRailBlock.POWERED);
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boolean flag1 = false;
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List<AbstractMinecart> list = this.getInteractingMinecartOfType(world, pos, AbstractMinecart.class, (entity) -> {
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diff --git a/src/main/java/net/minecraft/world/level/block/RailState.java b/src/main/java/net/minecraft/world/level/block/RailState.java
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index 0cbfad97371b59de95963a09aa16f3dad7a37222..939665cbe4cce36cd64c299908a738a4d1c2140e 100644
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--- a/src/main/java/net/minecraft/world/level/block/RailState.java
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+++ b/src/main/java/net/minecraft/world/level/block/RailState.java
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@@ -17,6 +17,12 @@ public class RailState {
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private final boolean isStraight;
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private final List<BlockPos> connections = Lists.newArrayList();
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+ // Paper start - Fix some rails connecting improperly
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+ public boolean isValid() {
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+ return this.level.getBlockState(this.pos).getBlock() == this.state.getBlock();
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+ }
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+ // Paper end - Fix some rails connecting improperly
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+
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public RailState(Level world, BlockPos pos, BlockState state) {
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this.level = world;
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this.pos = pos;
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@@ -143,6 +149,11 @@ public class RailState {
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}
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private void connectTo(RailState placementHelper) {
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+ // Paper start - Fix some rails connecting improperly
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+ if (!this.isValid() || !placementHelper.isValid()) {
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+ return;
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+ }
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+ // Paper end - Fix some rails connecting improperly
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this.connections.add(placementHelper.pos);
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BlockPos blockPos = this.pos.north();
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BlockPos blockPos2 = this.pos.south();
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@@ -333,10 +344,15 @@ public class RailState {
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this.state = this.state.setValue(this.block.getShapeProperty(), railShape2);
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if (forceUpdate || this.level.getBlockState(this.pos) != this.state) {
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this.level.setBlock(this.pos, this.state, 3);
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+ // Paper start - Fix some rails connecting improperly
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+ if (!this.isValid()) {
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+ return this;
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+ }
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+ // Paper end - Fix some rails connecting improperly
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for(int i = 0; i < this.connections.size(); ++i) {
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RailState railState = this.getRail(this.connections.get(i));
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- if (railState != null) {
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+ if (railState != null && railState.isValid()) { // Paper - Fix some rails connecting improperly
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railState.removeSoftConnections();
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if (railState.canConnectTo(this)) {
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railState.connectTo(this);
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@@ -349,6 +365,6 @@ public class RailState {
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}
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public BlockState getState() {
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- return this.state;
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+ return this.level.getBlockState(this.pos); // Paper - Fix some rails connecting improperly
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}
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}
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