Paper/patches/server/0811-Fix-cancelling-ProjectileHitEvent-for-piercing-arrow.patch
Jake Potrebic 03a4e7ac75
Updated Upstream (Bukkit/CraftBukkit) (#8832)
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

Bukkit Changes:
37262de8 PR-812: Add Registry#match(String)
d6b40162 SPIGOT-4569: Add more BlockData API
f9691891 PR-809: Throw a more clear error for BlockIterators with zero direction, add Vector#isZero()
91e79e19 PR-804: Added methods to get translation keys for materials, itemstacks and more
426b00d3 PR-795: Add new BiomeParameterPoint passed to BiomeProvider#getBiome
0e91ea52 SPIGOT-7224: Add events for brewing stands and campfires starting their actions

CraftBukkit Changes:
a50301aa5 Fix issues with fluid tag conversion and fluid #isTagged
6aeb5e4c3 SPIGOT-4569: Implement more BlockData API
7dbf862c2 PR-1131: Added methods to get translation keys for materials, itemstacks and more
7167588b1 PR-1117: Add new BiomeParameterPoint passed to BiomeProvider#getBiome
7c44152eb SPIGOT-7224: Add events for brewing stands and campfires starting their actions
2023-02-15 14:10:14 -08:00

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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 11e0601c08e66ff7fe4febc2c38b38fec8d48c91..c56bc341ebb1592af9285d5e044951e7ae2ae0b2 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
+ public 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));
}