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