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-rw-r--r--patches/server/0399-Fix-some-rails-connecting-improperly.patch84
1 files changed, 84 insertions, 0 deletions
diff --git a/patches/server/0399-Fix-some-rails-connecting-improperly.patch b/patches/server/0399-Fix-some-rails-connecting-improperly.patch
new file mode 100644
index 0000000000..4f5cd86538
--- /dev/null
+++ b/patches/server/0399-Fix-some-rails-connecting-improperly.patch
@@ -0,0 +1,84 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <[email protected]>
+Date: Fri, 24 Jul 2020 15:56:05 -0700
+Subject: [PATCH] Fix some rails connecting improperly
+
+
+diff --git a/src/main/java/net/minecraft/world/level/block/BaseRailBlock.java b/src/main/java/net/minecraft/world/level/block/BaseRailBlock.java
+index f9b6db516fa0788a6d4d40fa7ea2039cd3282b24..0961f6f5e627debe0bf02670d922e6d3388ba631 100644
+--- a/src/main/java/net/minecraft/world/level/block/BaseRailBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/BaseRailBlock.java
+@@ -68,6 +68,7 @@ public abstract class BaseRailBlock extends Block implements SimpleWaterloggedBl
+ state = this.updateDir(world, pos, state, true);
+ if (this.isStraight) {
+ world.neighborChanged(state, pos, this, pos, notify);
++ state = world.getBlockState(pos); // Paper - Fix some rails connecting improperly
+ }
+
+ return state;
+diff --git a/src/main/java/net/minecraft/world/level/block/DetectorRailBlock.java b/src/main/java/net/minecraft/world/level/block/DetectorRailBlock.java
+index e5534fd35a8f9736cc25471e9f0feaa8da88c85d..55a97da8786ec0ae98abe56876c00f4678ba0007 100644
+--- a/src/main/java/net/minecraft/world/level/block/DetectorRailBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/DetectorRailBlock.java
+@@ -77,6 +77,7 @@ public class DetectorRailBlock extends BaseRailBlock {
+
+ private void checkPressed(Level world, BlockPos pos, BlockState state) {
+ if (this.canSurvive(state, world, pos)) {
++ if (state.getBlock() != this) { return; } // Paper - Fix some rails connecting improperly
+ boolean flag = (Boolean) state.getValue(DetectorRailBlock.POWERED);
+ boolean flag1 = false;
+ List<AbstractMinecart> list = this.getInteractingMinecartOfType(world, pos, AbstractMinecart.class, (entity) -> {
+diff --git a/src/main/java/net/minecraft/world/level/block/RailState.java b/src/main/java/net/minecraft/world/level/block/RailState.java
+index 6caafa73b03ed55c95303e49735eaf3dfd34903a..aa7ebaccad8dc555d9e1dee300e75fcd968a3608 100644
+--- a/src/main/java/net/minecraft/world/level/block/RailState.java
++++ b/src/main/java/net/minecraft/world/level/block/RailState.java
+@@ -17,6 +17,12 @@ public class RailState {
+ private final boolean isStraight;
+ private final List<BlockPos> connections = Lists.newArrayList();
+
++ // Paper start - Fix some rails connecting improperly
++ public boolean isValid() {
++ return this.level.getBlockState(this.pos).getBlock() == this.state.getBlock();
++ }
++ // Paper end - Fix some rails connecting improperly
++
+ public RailState(Level world, BlockPos pos, BlockState state) {
+ this.level = world;
+ this.pos = pos;
+@@ -141,6 +147,11 @@ public class RailState {
+ }
+
+ private void connectTo(RailState placementHelper) {
++ // Paper start - Fix some rails connecting improperly
++ if (!this.isValid() || !placementHelper.isValid()) {
++ return;
++ }
++ // Paper end - Fix some rails connecting improperly
+ this.connections.add(placementHelper.pos);
+ BlockPos blockPos = this.pos.north();
+ BlockPos blockPos2 = this.pos.south();
+@@ -331,10 +342,15 @@ public class RailState {
+ this.state = this.state.setValue(this.block.getShapeProperty(), railShape2);
+ if (forceUpdate || this.level.getBlockState(this.pos) != this.state) {
+ this.level.setBlock(this.pos, this.state, 3);
++ // Paper start - Fix some rails connecting improperly
++ if (!this.isValid()) {
++ return this;
++ }
++ // Paper end - Fix some rails connecting improperly
+
+ for (int i = 0; i < this.connections.size(); i++) {
+ RailState railState = this.getRail(this.connections.get(i));
+- if (railState != null) {
++ if (railState != null && railState.isValid()) { // Paper - Fix some rails connecting improperly
+ railState.removeSoftConnections();
+ if (railState.canConnectTo(this)) {
+ railState.connectTo(this);
+@@ -347,6 +363,6 @@ public class RailState {
+ }
+
+ public BlockState getState() {
+- return this.state;
++ return this.level.getBlockState(this.pos); // Paper - Fix some rails connecting improperly
+ }
+ }