3 files changed, 33 insertions, 0 deletions
diff --git a/src/game-server/monster.cpp b/src/game-server/monster.cpp
index 34920b91..ec9db792 100644
--- a/src/game-server/monster.cpp
+++ b/src/game-server/monster.cpp
@@ -430,6 +430,19 @@ int Monster::damage(Actor *source, const Damage &damage)
                          KILLSTEAL_PROTECTION_TIME);
         }
     }
+
+    if (mSpecy->getDamageCallback().isValid())
+    {
+        Script *script = ScriptManager::currentState();
+        script->setMap(getMap());
+        script->prepare(mSpecy->getDamageCallback());
+        script->push(this);
+        script->push(source);
+        script->push(HPLoss);
+        // TODO: add exact damage parameters as well
+        script->execute();
+    }
+
     return HPLoss;
 }
 
diff --git a/src/game-server/monster.h b/src/game-server/monster.h
index 3b58fa60..afa93e71 100644
--- a/src/game-server/monster.h
+++ b/src/game-server/monster.h
@@ -202,12 +202,18 @@ class MonsterClass
         void setUpdateCallback(Script *script)
         { script->assignCallback(mUpdateCallback); }
 
+        void setDamageCallback(Script *script)
+        { script->assignCallback(mDamageCallback); }
+
         void setEventCallback(const std::string &event, Script *script)
         { script->assignCallback(mEventCallbacks[event]); }
 
         Script::Ref getUpdateCallback() const
         { return mUpdateCallback; }
 
+        Script::Ref getDamageCallback() const
+        { return mDamageCallback; }
+
         Script::Ref getEventCallback(const std::string &event) const
         { return mEventCallbacks.value(event); }
 
@@ -237,6 +243,11 @@ class MonsterClass
         Script::Ref mUpdateCallback;
 
         /**
+         * A reference to the script that is called when a mob takes damage.
+         */
+        Script::Ref mDamageCallback;
+
+        /**
          * Named event callbacks. Currently only used for custom attack
          * callbacks.
          */
diff --git a/src/scripting/lua.cpp b/src/scripting/lua.cpp
index 1900f5ac..ca4a3272 100644
--- a/src/scripting/lua.cpp
+++ b/src/scripting/lua.cpp
@@ -1267,6 +1267,14 @@ static int monster_class_on_update(lua_State *s)
     return 0;
 }
 
+static int monster_class_on_damage(lua_State *s)
+{
+    MonsterClass *monsterClass = LuaMonsterClass::check(s, 1);
+    luaL_checktype(s, 2, LUA_TFUNCTION);
+    monsterClass->setDamageCallback(getScript(s));
+    return 0;
+}
+
 static int monster_class_on(lua_State *s)
 {
     MonsterClass *monsterClass = LuaMonsterClass::check(s, 1);
@@ -2492,6 +2500,7 @@ LuaScript::LuaScript():
 
     static luaL_Reg const members_MonsterClass[] = {
         { "on_update",                       &monster_class_on_update         },
+        { "on_damage",                       &monster_class_on_damage         },
         { "on",                              &monster_class_on                },
         { NULL, NULL }
     };