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PaperMC/patches/server/0759-check-global-player-list-where-appropriate.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: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Tue, 22 Nov 2022 13:16:01 -0800
Subject: [PATCH] check global player list where appropriate
Makes certain entities check all players when searching for a player
instead of just checking players in their world.
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 6db3418d839c0f4cd75ad822e605dc2105c3df53..77c1ddc6fd14e0b033825909e5c814abd2306f8d 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -2358,4 +2358,12 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
entity.updateDynamicGameEventListener(DynamicGameEventListener::move);
}
}
+
+ // Paper start - check global player list where appropriate
+ @Override
+ @Nullable
+ public Player getGlobalPlayerByUUID(UUID uuid) {
+ return this.server.getPlayerList().getPlayer(uuid);
+ }
+ // Paper end - check global player list where appropriate
}
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 18c56cef30fca0174703e775b3bbbf6df4272585..d239108bd98fe885eba50a17855f2d62de02c70e 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3866,7 +3866,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
}
public void onItemPickup(ItemEntity item) {
- Entity entity = item.getOwner();
+ Entity entity = item.thrower != null ? this.level().getGlobalPlayerByUUID(item.thrower) : null; // Paper - check global player list where appropriate
if (entity instanceof ServerPlayer) {
CriteriaTriggers.THROWN_ITEM_PICKED_UP_BY_ENTITY.trigger((ServerPlayer) entity, item.getItem(), this);
diff --git a/src/main/java/net/minecraft/world/entity/monster/ZombieVillager.java b/src/main/java/net/minecraft/world/entity/monster/ZombieVillager.java
index 533cb2eff3d56e7e8a70aba5e1047250e192bf2c..18c19e4b675000aacb74344909fc104964231008 100644
--- a/src/main/java/net/minecraft/world/entity/monster/ZombieVillager.java
+++ b/src/main/java/net/minecraft/world/entity/monster/ZombieVillager.java
@@ -262,7 +262,7 @@ public class ZombieVillager extends Zombie implements VillagerDataHolder {
entityvillager.finalizeSpawn(world, world.getCurrentDifficultyAt(entityvillager.blockPosition()), EntitySpawnReason.CONVERSION, (SpawnGroupData) null);
entityvillager.refreshBrain(world);
if (this.conversionStarter != null) {
- Player entityhuman = world.getPlayerByUUID(this.conversionStarter);
+ Player entityhuman = world.getGlobalPlayerByUUID(this.conversionStarter); // Paper - check global player list where appropriate
if (entityhuman instanceof ServerPlayer) {
CriteriaTriggers.CURED_ZOMBIE_VILLAGER.trigger((ServerPlayer) entityhuman, this, entityvillager);
diff --git a/src/main/java/net/minecraft/world/level/EntityGetter.java b/src/main/java/net/minecraft/world/level/EntityGetter.java
index dac8305f1c897e6f82a2dde67c5b1b6b8b649b19..e185a33b5b1f8e8e0a0e666b24ba3e9186a8a7ff 100644
--- a/src/main/java/net/minecraft/world/level/EntityGetter.java
+++ b/src/main/java/net/minecraft/world/level/EntityGetter.java
@@ -165,4 +165,11 @@ public interface EntityGetter {
return null;
}
+
+ // Paper start - check global player list where appropriate
+ @Nullable
+ default Player getGlobalPlayerByUUID(UUID uuid) {
+ return this.getPlayerByUUID(uuid);
+ }
+ // Paper end - check global player list where appropriate
}
diff --git a/src/main/java/net/minecraft/world/level/block/entity/SculkShriekerBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/SculkShriekerBlockEntity.java
index ea53c25c350c0cf8e0360ea409cd1f69a62054a8..275721d8b3d653b38af505dde30396c0b7b6a3da 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/SculkShriekerBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/SculkShriekerBlockEntity.java
@@ -105,6 +105,13 @@ public class SculkShriekerBlockEntity extends BlockEntity implements GameEventLi
@Nullable
public static ServerPlayer tryGetPlayer(@Nullable Entity entity) {
+ // Paper start - check global player list where appropriate; ensure level is the same for sculk events
+ final ServerPlayer player = tryGetPlayer0(entity);
+ return player != null && player.level() == entity.level() ? player : null;
+ }
+ @Nullable
+ private static ServerPlayer tryGetPlayer0(@Nullable Entity entity) {
+ // Paper end - check global player list where appropriate
if (entity instanceof ServerPlayer) {
return (ServerPlayer)entity;
} else {