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geforkt von Mirrors/Paper
Paper/patches/server/0380-Improve-fix-EntityTargetLivingEntityEvent.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

36 Zeilen
2.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Fri, 9 Dec 2022 03:10:23 -0800
Subject: [PATCH] Improve/fix EntityTargetLivingEntityEvent
diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/StopAttackingIfTargetInvalid.java b/src/main/java/net/minecraft/world/entity/ai/behavior/StopAttackingIfTargetInvalid.java
index cc7d161b53a2295fa1745254eafb8a70c7b6c7b2..508d4f391fe563453d7bf6782b3082741c358006 100644
--- a/src/main/java/net/minecraft/world/entity/ai/behavior/StopAttackingIfTargetInvalid.java
+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/StopAttackingIfTargetInvalid.java
@@ -47,9 +47,22 @@ public class StopAttackingIfTargetInvalid {
if (entityinsentient.canAttack(entityliving) && (!shouldForgetIfTargetUnreachable || !StopAttackingIfTargetInvalid.isTiredOfTryingToReachTarget(entityinsentient, behaviorbuilder_b.tryGet(memoryaccessor1))) && entityliving.isAlive() && entityliving.level() == entityinsentient.level() && !alternativeCondition.test(entityliving)) {
return true;
} else {
+ // Paper start - better track target change reason
+ final EntityTargetEvent.TargetReason reason;
+ if (!entityinsentient.canAttack(entityliving)) {
+ reason = EntityTargetEvent.TargetReason.TARGET_INVALID;
+ } else if (shouldForgetIfTargetUnreachable && StopAttackingIfTargetInvalid.isTiredOfTryingToReachTarget(entityinsentient, behaviorbuilder_b.tryGet(memoryaccessor1))) {
+ reason = EntityTargetEvent.TargetReason.FORGOT_TARGET;
+ } else if (!entityliving.isAlive()) {
+ reason = EntityTargetEvent.TargetReason.TARGET_DIED;
+ } else if (entityliving.level() != entityinsentient.level()) {
+ reason = EntityTargetEvent.TargetReason.TARGET_OTHER_LEVEL;
+ } else {
+ reason = EntityTargetEvent.TargetReason.TARGET_INVALID;
+ }
+ // Paper end
// CraftBukkit start
- LivingEntity old = entityinsentient.getBrain().getMemory(MemoryModuleType.ATTACK_TARGET).orElse(null);
- EntityTargetEvent event = CraftEventFactory.callEntityTargetLivingEvent(entityinsentient, null, (old != null && !old.isAlive()) ? EntityTargetEvent.TargetReason.TARGET_DIED : EntityTargetEvent.TargetReason.FORGOT_TARGET);
+ EntityTargetEvent event = CraftEventFactory.callEntityTargetLivingEvent(entityinsentient, null, reason); // Paper
if (event.isCancelled()) {
return false;
}