Paper/patches/server/0861-Fire-entity-death-event-for-ender-dragon.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

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1.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Trevor Bedson <78997566+Prorickey@users.noreply.github.com>
Date: Fri, 14 Jul 2023 20:47:02 -0400
Subject: [PATCH] Fire entity death event for ender dragon
diff --git a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
index 6306f7925ac4852d8eed7508a11764c636dd7d36..5868d2e9e05a698c77117cf87c79b636b50fe289 100644
--- a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
+++ b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
@@ -657,6 +657,15 @@ public class EnderDragon extends Mob implements Enemy {
@Override
public void kill() {
+ // Paper start - Fire entity death event
+ this.silentDeath = true;
+ org.bukkit.event.entity.EntityDeathEvent deathEvent = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDeathEvent(this, this.damageSources().genericKill());
+ if (deathEvent.isCancelled()) {
+ this.silentDeath = false; // Reset to default if event was cancelled
+ return;
+ }
+ // Paper end - Fire entity death event
+
this.remove(Entity.RemovalReason.KILLED, EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
this.gameEvent(GameEvent.ENTITY_DIE);
if (this.dragonFight != null) {