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40 lines
2 KiB
Diff
40 lines
2 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 92b630475ef7032c9cae6288b2a0370562e25f57..dfa44899529a7a9c32fe17fcb2091eab7d790f5a 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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@@ -322,6 +322,19 @@ public abstract class AbstractArrow extends Projectile {
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}
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}
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+ // Paper start - Fix cancelling ProjectileHitEvent for piercing arrows
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+ @Override
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+ public ProjectileDeflection preHitTargetOrDeflectSelf(HitResult 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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+ return super.preHitTargetOrDeflectSelf(hitResult);
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+ }
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+ // Paper end - Fix cancelling ProjectileHitEvent for piercing arrows
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+
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@Override
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protected double getDefaultGravity() {
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return 0.05D;
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