Paper/patches/server/0520-Introduce-beacon-activation-deactivation-events.patch
Bjarne Koll c5a10665b8
Remove wall-time / unused skip tick protection (#11412)
Spigot still maintains some partial implementation of "tick skipping", a
practice in which the MinecraftServer.currentTick field is updated not
by an increment of one per actual tick, but instead set to
System.currentTimeMillis() / 50. This behaviour means that the tracked
tick may "skip" a tick value in case a previous tick took more than the
expected 50ms.

To compensate for this in important paths, spigot/craftbukkit
implements "wall-time". Instead of incrementing/decrementing ticks on
block entities/entities by one for each call to their tick() method,
they instead increment/decrement important values, like
an ItemEntity's age or pickupDelay, by the difference of
`currentTick - lastTick`, where `lastTick` is the value of
`currentTick` during the last tick() call.

These "fixes" however do not play nicely with minecraft's simulation
distance as entities/block entities implementing the above behaviour
would "catch up" their values when moving from a non-ticking chunk to a
ticking one as their `lastTick` value remains stuck on the last tick in
a ticking chunk and hence lead to a large "catch up" once ticked again.

Paper completely removes the "tick skipping" behaviour (See patch
"Further-improve-server-tick-loop"), making the above precautions
completely unnecessary, which also rids paper of the previous described
incompatibility with non-ticking chunks.
2024-09-19 16:36:07 +02:00

38 lines
2.1 KiB
Diff

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 52776ce9b7b4edd1eb474f14705d7fd83f5a66ca..e124f040386e130aebd7135434c4f06d130d28f6 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
@@ -225,6 +225,15 @@ public class BeaconBlockEntity extends BlockEntity implements MenuProvider, Name
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 - beacon activation/deactivation events
if (blockEntity.lastCheckY >= l) {
blockEntity.lastCheckY = world.getMinBuildHeight() - 1;
@@ -282,6 +291,10 @@ public class BeaconBlockEntity extends BlockEntity implements MenuProvider, Name
@Override
public void setRemoved() {
+ // Paper start - beacon activation/deactivation events
+ org.bukkit.block.Block block = org.bukkit.craftbukkit.block.CraftBlock.at(level, worldPosition);
+ new io.papermc.paper.event.block.BeaconDeactivatedEvent(block).callEvent();
+ // Paper end - beacon activation/deactivation events
BeaconBlockEntity.playSound(this.level, this.worldPosition, SoundEvents.BEACON_DEACTIVATE);
super.setRemoved();
}