PaperMC/patches/server/0789-Add-CompostItemEvent-and-EntityCompostItemEvent.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: Noah van der Aa <ndvdaa@gmail.com>
Date: Sun, 8 Aug 2021 19:56:02 +0200
Subject: [PATCH] Add CompostItemEvent and EntityCompostItemEvent
diff --git a/src/main/java/net/minecraft/world/level/block/ComposterBlock.java b/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
index 05b2eab26e2dc8e143e9fff2dcec40cfe927a197..db837b250fc35af5b528bf973b3b07f63e79bc46 100644
--- a/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
@@ -340,7 +340,21 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
int i = (Integer) iblockdata.getValue(ComposterBlock.LEVEL);
float f = ComposterBlock.COMPOSTABLES.getFloat(itemstack.getItem());
- if ((i != 0 || f <= 0.0F) && rand >= (double) f) {
+ // Paper start - Add CompostItemEvent and EntityCompostItemEvent
+ boolean willRaiseLevel = !((i != 0 || f <= 0.0F) && rand >= (double) f);
+ final io.papermc.paper.event.block.CompostItemEvent event;
+ if (entity == null) {
+ event = new io.papermc.paper.event.block.CompostItemEvent(org.bukkit.craftbukkit.block.CraftBlock.at(generatoraccess, blockposition), itemstack.getBukkitStack(), willRaiseLevel);
+ } else {
+ event = new io.papermc.paper.event.entity.EntityCompostItemEvent(entity.getBukkitEntity(), org.bukkit.craftbukkit.block.CraftBlock.at(generatoraccess, blockposition), itemstack.getBukkitStack(), willRaiseLevel);
+ }
+ if (!event.callEvent()) { // check for cancellation of entity event (non entity event can't be cancelled cause of hoppers)
+ return null;
+ }
+ willRaiseLevel = event.willRaiseLevel();
+
+ if (!willRaiseLevel) {
+ // Paper end - Add CompostItemEvent and EntityCompostItemEvent
return iblockdata;
} else {
int j = i + 1;
@@ -489,6 +503,11 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
if (!itemstack.isEmpty()) {
this.changed = true;
BlockState iblockdata = ComposterBlock.addItem((Entity) null, this.state, this.level, this.pos, itemstack);
+ // Paper start - Add CompostItemEvent and EntityCompostItemEvent
+ if (iblockdata == null) {
+ return;
+ }
+ // Paper end - Add CompostItemEvent and EntityCompostItemEvent
this.level.levelEvent(1500, this.pos, iblockdata != this.state ? 1 : 0);
this.removeItemNoUpdate(0);