mirror of https://github.com/PaperMC/Paper.git
41 lines
1.9 KiB
Diff
41 lines
1.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Sat, 19 Feb 2022 19:05:59 -0800
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Subject: [PATCH] Fix cancelling ProjectileHitEvent for piercing arrows
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Piercing arrows search for multiple entities inside a while
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loop that is checking the projectile entity's removed state.
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If the hit event is cancelled on the first entity, the event will
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be called over and over again inside that while loop until the event
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is not cancelled. The solution here, is to make use of an
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already-existing field on AbstractArrow for tracking entities hit by
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piercing arrows to avoid duplicate damage being applied.
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== AT ==
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protected net.minecraft.world.entity.projectile.Projectile hitCancelled
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diff --git a/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java b/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
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index 39136b9707221e4e4934ee0ef18fc2cb92723aa2..def3b3f8dac4b28eaaafdd9bc2e7f4b9ec9d6855 100644
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--- a/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
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+++ b/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
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@@ -300,6 +300,19 @@ public abstract class AbstractArrow extends Projectile {
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}
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}
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+ // Paper start
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+ @Override
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+ protected void preOnHit(HitResult hitResult) {
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+ super.preOnHit(hitResult);
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+ if (hitResult instanceof EntityHitResult entityHitResult && this.hitCancelled && this.getPierceLevel() > 0) {
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+ if (this.piercingIgnoreEntityIds == null) {
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+ this.piercingIgnoreEntityIds = new IntOpenHashSet(5);
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+ }
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+ this.piercingIgnoreEntityIds.add(entityHitResult.getEntity().getId());
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+ }
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+ }
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+ // Paper end
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+
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private boolean shouldFall() {
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return this.inGround && this.level.noCollision((new AABB(this.position(), this.position())).inflate(0.06D));
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}
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