PaperMC/paper-server/nms-patches/net/minecraft/world/entity/Interaction.patch

--- a/net/minecraft/world/entity/Interaction.java
+++ b/net/minecraft/world/entity/Interaction.java
@@ -24,6 +24,12 @@
 import net.minecraft.world.phys.AxisAlignedBB;
 import org.slf4j.Logger;
 
+// CraftBukkit start
+import net.minecraft.world.damagesource.DamageSource;
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.event.entity.EntityDamageEvent;
+// CraftBukkit end
+
 public class Interaction extends Entity implements Attackable, Targeting {
 
     private static final Logger LOGGER = LogUtils.getLogger();
@@ -62,7 +68,7 @@
             this.setHeight(nbttagcompound.getFloat("height"));
         }
 
-        DataResult dataresult;
+        DataResult<com.mojang.datafixers.util.Pair<Interaction.PlayerAction, net.minecraft.nbt.NBTBase>> dataresult; // CraftBukkit - decompile error
         Logger logger;
 
         if (nbttagcompound.contains("attack")) {
@@ -143,12 +149,19 @@
     public boolean skipAttackInteraction(Entity entity) {
         if (entity instanceof EntityHuman) {
             EntityHuman entityhuman = (EntityHuman) entity;
+            // CraftBukkit start
+            DamageSource source = entityhuman.damageSources().playerAttack(entityhuman);
+            EntityDamageEvent event = CraftEventFactory.callNonLivingEntityDamageEvent(this, source, 1.0F, false);
+            if (event.isCancelled()) {
+                return true;
+            }
+            // CraftBukkit end
 
             this.attack = new Interaction.PlayerAction(entityhuman.getUUID(), this.level().getGameTime());
             if (entityhuman instanceof EntityPlayer) {
                 EntityPlayer entityplayer = (EntityPlayer) entityhuman;
 
-                CriterionTriggers.PLAYER_HURT_ENTITY.trigger(entityplayer, this, entityhuman.damageSources().generic(), 1.0F, 1.0F, false);
+                CriterionTriggers.PLAYER_HURT_ENTITY.trigger(entityplayer, this, source, (float) event.getFinalDamage(), 1.0F, false); // CraftBukkit
             }
 
             return !this.getResponse();