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PaperMC/patches/server/0386-Fix-some-rails-connecting-improperly.patch
Spottedleaf 8c5b837e05 Rework async chunk api implementation
Firstly, the old methods all routed to the CompletableFuture method.
However, the CF method could not guarantee that if the caller
was off-main that the future would be "completed" on-main. Since
the callback methods used the CF one, this meant that the callback
methods did not guarantee that the callbacks were to be called on
the main thread.

Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb)
so that the methods with the callback are guaranteed to invoke
the callback on the main thread. The CF behavior remains unchanged;
it may still appear to complete on main if invoked off-main.

Secondly, remove the scheduleOnMain invocation in the async
chunk completion. This unnecessarily delays the callback
by 1 tick.

Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which
will load chunks within an area. This method is provided as a helper
as keeping all chunks loaded within an area can be complicated to
implement for plugins (due to the lacking ticket API), and is
already implemented internally anyways.

Fourthly, remove the ticket addition that occured with getChunkAt
and getChunkAtAsync. The ticket addition may delay the unloading
of the chunk unnecessarily. It also fixes a very rare timing bug
where the future/callback would be completed after the chunk
unloads.
2024-11-18 23:00:59 -08:00

84 lines
4.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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 4a5badc4bb1e2c29016735e9df93c7ac4d3f363d..f9a55f76fed8609bca167b2ea37464e8079de0c0 100644
--- a/src/main/java/net/minecraft/world/level/block/BaseRailBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/BaseRailBlock.java
@@ -71,6 +71,7 @@ public abstract class BaseRailBlock extends Block implements SimpleWaterloggedBl
state = this.updateDir(world, pos, state, true);
if (this.isStraight) {
world.neighborChanged(state, pos, this, null, 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 3de30845aae143e5be5db921004142792522607d..1e2f56b5c40c3dc72bc38354160f8e7de1f4f5cf 100644
--- a/src/main/java/net/minecraft/world/level/block/DetectorRailBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/DetectorRailBlock.java
@@ -78,6 +78,7 @@ 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
}
}