Paper/patches/server/0391-Fix-SpawnChangeEvent-not-firing-for-all-use-cases.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

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2.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Sat, 22 Aug 2020 23:36:21 +0200
Subject: [PATCH] Fix SpawnChangeEvent not firing for all use-cases
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 161b556e5c5f3719b5623e71876a2250abc7f391..9a6a9508673edcb2eda8b3e4802fd9502a7514d5 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1705,7 +1705,9 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
float f1 = this.levelData.getSpawnAngle();
if (!blockposition1.equals(pos) || f1 != angle) {
+ org.bukkit.Location prevSpawnLoc = this.getWorld().getSpawnLocation(); // Paper - Call SpawnChangeEvent
this.levelData.setSpawn(pos, angle);
+ new org.bukkit.event.world.SpawnChangeEvent(this.getWorld(), prevSpawnLoc).callEvent(); // Paper - Call SpawnChangeEvent
this.getServer().getPlayerList().broadcastAll(new ClientboundSetDefaultSpawnPositionPacket(pos, angle));
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index f3ebea4d228d53057e2480a59eda5774eba03bb4..2ad9c104c7a99882417f9662d657841636751223 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -242,12 +242,14 @@ public class CraftWorld extends CraftRegionAccessor implements World {
@Override
public boolean setSpawnLocation(int x, int y, int z, float angle) {
try {
- Location previousLocation = this.getSpawnLocation();
- this.world.levelData.setSpawn(new BlockPos(x, y, z), angle);
+ // Location previousLocation = this.getSpawnLocation(); // Paper - Call SpawnChangeEvent; moved to nms.ServerLevel
+ this.world.setDefaultSpawnPos(new BlockPos(x, y, z), angle); // Paper - use ServerLevel#setDefaultSpawnPos
+ // Paper start - Call SpawnChangeEvent; move to nms.ServerLevel
// Notify anyone who's listening.
- SpawnChangeEvent event = new SpawnChangeEvent(this, previousLocation);
- this.server.getPluginManager().callEvent(event);
+ // SpawnChangeEvent event = new SpawnChangeEvent(this, previousLocation);
+ // server.getPluginManager().callEvent(event);
+ // Paper end - Call SpawnChangeEvent
return true;
} catch (Exception e) {