Clean entity.damage functions. Fixes BUKKIT-1822

src/main/java/org/bukkit/craftbukkit/entity/CraftComplexLivingEntity.java

@@ -1,11 +1,8 @@
 package org.bukkit.craftbukkit.entity;
 
-import net.minecraft.server.DamageSource;
 import net.minecraft.server.EntityComplex;
 import org.bukkit.craftbukkit.CraftServer;
 import org.bukkit.entity.ComplexLivingEntity;
-import org.bukkit.entity.HumanEntity;
-import org.bukkit.entity.LivingEntity;
 
 public abstract class CraftComplexLivingEntity extends CraftLivingEntity implements ComplexLivingEntity {
     public CraftComplexLivingEntity(CraftServer server, EntityComplex entity) {
@@ -21,21 +18,4 @@ public abstract class CraftComplexLivingEntity extends CraftLivingEntity impleme
     public String toString() {
         return "CraftComplexLivingEntity";
     }
-
-    @Override
-    public void damage(int amount, org.bukkit.entity.Entity source) {
-        DamageSource reason = DamageSource.GENERIC;
-
-        if (source instanceof HumanEntity) {
-            reason = DamageSource.playerAttack(((CraftHumanEntity) source).getHandle());
-        } else if (source instanceof LivingEntity) {
-            reason = DamageSource.mobAttack(((CraftLivingEntity) source).getHandle());
-        }
-
-        if (entity instanceof EntityComplex) {
-            ((EntityComplex) entity).dealDamage(reason, amount);
-        } else {
-            entity.damageEntity(reason, amount);
-        }
-    }
 }

src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java

@@ -8,6 +8,7 @@ import java.util.List;
 
 import net.minecraft.server.DamageSource;
 import net.minecraft.server.EntityArrow;
+import net.minecraft.server.EntityComplex;
 import net.minecraft.server.EntityEgg;
 import net.minecraft.server.EntityEnderPearl;
 import net.minecraft.server.EntityFireball;
@@ -147,7 +148,7 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
     }
 
     public void damage(int amount) {
-        entity.damageEntity(DamageSource.GENERIC, amount);
+        damage(amount, null);
     }
 
     public void damage(int amount, org.bukkit.entity.Entity source) {
@@ -159,7 +160,11 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
             reason = DamageSource.mobAttack(((CraftLivingEntity) source).getHandle());
         }
 
-        entity.damageEntity(reason, amount);
+        if (entity instanceof EntityComplex) {
+            ((EntityComplex) entity).dealDamage(reason, amount);
+        } else {
+            entity.damageEntity(reason, amount);
+        }
     }
 
     public Location getEyeLocation() {