PaperMC/patches/server/0840-ExperienceOrb-should-call-EntitySpawnEvent.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

20 lines
1.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Golfing8 <atroo@me.com>
Date: Mon, 8 May 2023 09:18:17 -0400
Subject: [PATCH] ExperienceOrb should call EntitySpawnEvent
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 9b3023fdda9d08c0f5489542f644e2ea311af191..907ea60b647d529f133986632d00416269bc311e 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -746,7 +746,8 @@ public class CraftEventFactory {
// Spigot start - SPIGOT-7523: Merge after spawn event and only merge if the event was not cancelled (gets checked above)
if (entity instanceof net.minecraft.world.entity.ExperienceOrb xp) {
double radius = world.spigotConfig.expMerge;
- if (radius > 0) {
+ event = CraftEventFactory.callEntitySpawnEvent(entity); // Call spawn event for ExperienceOrb entities
+ if (radius > 0 && !event.isCancelled() && !entity.isRemoved()) {
// Paper start - Maximum exp value when merging; Whole section has been tweaked, see comments for specifics
final long maxValue = world.paperConfig().entities.behavior.experienceMergeMaxValue;
final boolean mergeUnconditionally = maxValue <= 0;