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Paper/patches/server/0829-Only-set-despawnTimer-for-Wandering-Traders-spawned-.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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Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Fri, 19 Mar 2021 16:07:21 -0700
Subject: [PATCH] Only set despawnTimer for Wandering Traders spawned by
WanderingTraderSpawner
diff --git a/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java b/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
index a65fba5621c067c453858efb7fee64cbee1e7916..1e77cce428d9e53142aaa2cf780b7f862d536eca 100644
--- a/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
+++ b/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
@@ -69,7 +69,7 @@ public class WanderingTrader extends net.minecraft.world.entity.npc.AbstractVill
public WanderingTrader(EntityType<? extends WanderingTrader> type, Level world) {
super(type, world);
- this.setDespawnDelay(48000); // CraftBukkit - set default from MobSpawnerTrader
+ //this.setDespawnDelay(48000); // CraftBukkit - set default from MobSpawnerTrader // Paper - move back to MobSpawnerTrader - Vanilla behavior is that only traders spawned by it have this value set.
}
@Override
diff --git a/src/main/java/net/minecraft/world/entity/npc/WanderingTraderSpawner.java b/src/main/java/net/minecraft/world/entity/npc/WanderingTraderSpawner.java
index 08a3c7140867f339dd99a95094ed0fd8ff344fca..a728dcbf956f108f01c966c7531449a506a14a87 100644
--- a/src/main/java/net/minecraft/world/entity/npc/WanderingTraderSpawner.java
+++ b/src/main/java/net/minecraft/world/entity/npc/WanderingTraderSpawner.java
@@ -120,7 +120,7 @@ public class WanderingTraderSpawner implements CustomSpawner {
return false;
}
- WanderingTrader entityvillagertrader = (WanderingTrader) EntityType.WANDERING_TRADER.spawn(world, blockposition2, EntitySpawnReason.EVENT, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL); // CraftBukkit
+ WanderingTrader entityvillagertrader = (WanderingTrader) EntityType.WANDERING_TRADER.spawn(world, trader -> trader.setDespawnDelay(48000), blockposition2, EntitySpawnReason.EVENT, false, false, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL); // CraftBukkit // Paper - set despawnTimer before spawn events called
if (entityvillagertrader != null) {
for (int i = 0; i < 2; ++i) {