Paper/patches/server/0813-Fix-cancelling-ProjectileHitEvent-for-piercing-arrow.patch
Jake Potrebic 9147456fc9
Updated Upstream (CraftBukkit/Spigot) (#8815)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

CraftBukkit Changes:
ab8ace685 SPIGOT-7236: Bone meal doesn't increase use statistic
7dcb59b8e Avoid switch on material in previous commit

Spigot Changes:
19641c75 SPIGOT-7235: World.Spigot#strikeLightningEffect doesn't do anything
2023-01-27 12:52:04 -08:00

41 lines
1.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 19 Feb 2022 19:05:59 -0800
Subject: [PATCH] Fix cancelling ProjectileHitEvent for piercing arrows
Piercing arrows search for multiple entities inside a while
loop that is checking the projectile entity's removed state.
If the hit event is cancelled on the first entity, the event will
be called over and over again inside that while loop until the event
is not cancelled. The solution here, is to make use of an
already-existing field on AbstractArrow for tracking entities hit by
piercing arrows to avoid duplicate damage being applied.
== AT ==
protected net.minecraft.world.entity.projectile.Projectile hitCancelled
diff --git a/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java b/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
index 8c08e07ba78e2ed042d79b692221008f59e92593..9788e477ff1446ad2ea3669922cc7dfc09900ce8 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
@@ -290,6 +290,19 @@ public abstract class AbstractArrow extends Projectile {
}
}
+ // Paper start
+ @Override
+ protected void preOnHit(HitResult hitResult) {
+ super.preOnHit(hitResult);
+ if (hitResult instanceof EntityHitResult entityHitResult && this.hitCancelled && this.getPierceLevel() > 0) {
+ if (this.piercingIgnoreEntityIds == null) {
+ this.piercingIgnoreEntityIds = new IntOpenHashSet(5);
+ }
+ this.piercingIgnoreEntityIds.add(entityHitResult.getEntity().getId());
+ }
+ }
+ // Paper end
+
private boolean shouldFall() {
return this.inGround && this.level.noCollision((new AABB(this.position(), this.position())).inflate(0.06D));
}