Paper/patches/server/0407-Expose-the-Entity-Counter-to-allow-plugins-to-use-va.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: MeFisto94 <MeFisto94@users.noreply.github.com>
Date: Fri, 28 Aug 2020 01:41:26 +0200
Subject: [PATCH] Expose the Entity Counter to allow plugins to use valid and
non-conflicting Entity Ids
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index e56ee4ee930bb788fb7b0e254798308571802ab4..8f103dc563110f04563487f90fe02de4288a99a7 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -4734,4 +4734,10 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
void accept(Entity entity, double x, double y, double z);
}
+
+ // Paper start - Expose entity id counter
+ public static int nextEntityId() {
+ return ENTITY_COUNTER.incrementAndGet();
+ }
+ // Paper end - Expose entity id counter
}
diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
index b50d1ddfd23bf1af16d86e5edcb72196b4674868..09a6a0c06580aea9e7be8de2189673d1a476f411 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
@@ -527,6 +527,11 @@ public final class CraftMagicNumbers implements UnsafeValues {
Preconditions.checkArgument(dataVersion <= getDataVersion(), "Newer version! Server downgrades are not supported!");
return compound;
}
+
+ @Override
+ public int nextEntityId() {
+ return net.minecraft.world.entity.Entity.nextEntityId();
+ }
// Paper end
/**