Paper/patches/server/0616-Introduce-beacon-activation-deactivation-events.patch
Spottedleaf 01a13871de
Rewrite chunk system (#8177)
Patch documentation to come

Issues with the old system that are fixed now:
- World generation does not scale with cpu cores effectively.
- Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps.
- Unreliable prioritisation of chunk gen/load calls that block the main thread.
- Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved.
- Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal.
- Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles.

The above list is not complete. The patch documentation will complete it.

New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil.

Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft.

The old legacy chunk system patches have been moved to the removed folder in case we need them again.
2022-09-26 01:02:51 -07:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spyridon Pagkalos <spyridon@ender.gr>
Date: Thu, 25 Mar 2021 20:28:04 +0200
Subject: [PATCH] Introduce beacon activation/deactivation events
diff --git a/src/main/java/net/minecraft/world/level/block/entity/BeaconBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/BeaconBlockEntity.java
index 812d21393ed2ed0623b7445585f1b0b3dcefb55d..5f6eeb36f57bd342b18590c8f0ffb668d2bf273c 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/BeaconBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/BeaconBlockEntity.java
@@ -210,6 +210,15 @@ public class BeaconBlockEntity extends BlockEntity implements MenuProvider {
BeaconBlockEntity.playSound(world, pos, SoundEvents.BEACON_AMBIENT);
}
}
+ // Paper start - beacon activation/deactivation events
+ if (i1 <= 0 && blockEntity.levels > 0) {
+ org.bukkit.block.Block block = org.bukkit.craftbukkit.block.CraftBlock.at(world, pos);
+ new io.papermc.paper.event.block.BeaconActivatedEvent(block).callEvent();
+ } else if (i1 > 0 && blockEntity.levels <= 0) {
+ org.bukkit.block.Block block = org.bukkit.craftbukkit.block.CraftBlock.at(world, pos);
+ new io.papermc.paper.event.block.BeaconDeactivatedEvent(block).callEvent();
+ }
+ // Paper end
if (blockEntity.lastCheckY >= l) {
blockEntity.lastCheckY = world.getMinBuildHeight() - 1;
@@ -267,6 +276,10 @@ public class BeaconBlockEntity extends BlockEntity implements MenuProvider {
@Override
public void setRemoved() {
+ // Paper start - BeaconDeactivatedEvent
+ org.bukkit.block.Block block = org.bukkit.craftbukkit.block.CraftBlock.at(level, worldPosition);
+ new io.papermc.paper.event.block.BeaconDeactivatedEvent(block).callEvent();
+ // Paper end
BeaconBlockEntity.playSound(this.level, this.worldPosition, SoundEvents.BEACON_DEACTIVATE);
super.setRemoved();
}