Paper/patches/server/0149-LivingEntity-setKiller.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
Date: Mon, 31 Jul 2017 01:49:48 -0500
Subject: [PATCH] LivingEntity#setKiller

== AT ==
public net.minecraft.world.entity.LivingEntity lastHurtByPlayerTime

diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index afbf6af7198bc69053882ac200892b5b695a4d36..1d5b84449fb91dba87de040c1c37ad77e0741320 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -366,6 +366,16 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
         return this.getHandle().lastHurtByPlayer == null ? null : (Player) this.getHandle().lastHurtByPlayer.getBukkitEntity();
     }
 
+    // Paper start
+    @Override
+    public void setKiller(Player killer) {
+        net.minecraft.server.level.ServerPlayer entityPlayer = killer == null ? null : ((CraftPlayer) killer).getHandle();
+        getHandle().lastHurtByPlayer = entityPlayer;
+        getHandle().lastHurtByMob = entityPlayer;
+        getHandle().lastHurtByPlayerTime = entityPlayer == null ? 0 : 100; // 100 value taken from EntityLiving#damageEntity
+    }
+    // Paper end
+
     @Override
     public boolean addPotionEffect(PotionEffect effect) {
         return this.addPotionEffect(effect, false);