13
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geforkt von Mirrors/Paper
Paper/patches/server/0762-Add-PrePlayerAttackEntityEvent.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

31 Zeilen
1.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Sun, 18 Sep 2022 13:10:18 -0400
Subject: [PATCH] Add PrePlayerAttackEntityEvent
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index fab56040ecf496e74f583ec5d6c6c9861cfa4e13..ad334f149fe1b44d4ebe48489dcd2811ff1b5cd0 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -1257,8 +1257,17 @@ public abstract class Player extends LivingEntity {
}
public void attack(Entity target) {
- if (target.isAttackable()) {
- if (!target.skipAttackInteraction(this)) {
+ // Paper start - PlayerAttackEntityEvent
+ boolean willAttack = target.isAttackable() && !target.skipAttackInteraction(this); // Vanilla logic
+ io.papermc.paper.event.player.PrePlayerAttackEntityEvent playerAttackEntityEvent = new io.papermc.paper.event.player.PrePlayerAttackEntityEvent(
+ (org.bukkit.entity.Player) this.getBukkitEntity(),
+ target.getBukkitEntity(),
+ willAttack
+ );
+
+ if (playerAttackEntityEvent.callEvent() && willAttack) { // Logic moved to willAttack local variable.
+ {
+ // Paper end - PlayerAttackEntityEvent
float f = this.isAutoSpinAttack() ? this.autoSpinAttackDmg : (float) this.getAttributeValue(Attributes.ATTACK_DAMAGE);
ItemStack itemstack = this.getWeaponItem();
DamageSource damagesource = this.damageSources().playerAttack(this);