Paper/patches/server/0409-Entity-isTicking.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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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sat, 3 Oct 2020 21:39:16 -0500
Subject: [PATCH] Entity#isTicking
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 8f103dc563110f04563487f90fe02de4288a99a7..20289623062acd34afb0ca5fc7daaf032ec1f418 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -4739,5 +4739,9 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
public static int nextEntityId() {
return ENTITY_COUNTER.incrementAndGet();
}
+
+ public boolean isTicking() {
+ return ((net.minecraft.server.level.ServerLevel) this.level).isPositionEntityTicking(this.blockPosition());
+ }
// Paper end - Expose entity id counter
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index 609c768ba4d22e346acbc9422ce41e3b887fadb1..dbb1a52b1e5871bbb1ccbd300b8edb9aa0f56e49 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -1058,4 +1058,11 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
return getHandle().isInLava();
}
// Paper end - entity liquid API
+
+ // Paper start - isTicking API
+ @Override
+ public boolean isTicking() {
+ return getHandle().isTicking();
+ }
+ // Paper end - isTicking API
}