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diff --git a/src/server/game/AI/PassiveAI.h b/src/server/game/AI/PassiveAI.h
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+/*
+ * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
+ *
+ * Copyright (C) 2008-2010 Trinity <http://www.trinitycore.org/>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef TRINITY_PASSIVEAI_H
+#define TRINITY_PASSIVEAI_H
+
+#include "CreatureAI.h"
+//#include "CreatureAIImpl.h"
+
+class PassiveAI : public CreatureAI
+{
+    public:
+        explicit PassiveAI(Creature *c);
+
+        void MoveInLineOfSight(Unit *) {}
+        void AttackStart(Unit *) {}
+        void UpdateAI(const uint32);
+
+        static int Permissible(const Creature *) { return PERMIT_BASE_IDLE;  }
+};
+
+class PossessedAI : public CreatureAI
+{
+    public:
+        explicit PossessedAI(Creature *c);
+
+        void MoveInLineOfSight(Unit *) {}
+        void AttackStart(Unit *target);
+        void UpdateAI(const uint32);
+        void EnterEvadeMode() {}
+
+        void JustDied(Unit*);
+        void KilledUnit(Unit* victim);
+
+        static int Permissible(const Creature *) { return PERMIT_BASE_IDLE;  }
+};
+
+class NullCreatureAI : public CreatureAI
+{
+    public:
+        explicit NullCreatureAI(Creature *c);
+
+        void MoveInLineOfSight(Unit *) {}
+        void AttackStart(Unit *) {}
+        void UpdateAI(const uint32) {}
+        void EnterEvadeMode() {}
+        void OnCharmed(bool /*apply*/) {}
+
+        static int Permissible(const Creature *) { return PERMIT_BASE_IDLE;  }
+};
+
+class CritterAI : public PassiveAI
+{
+    public:
+        explicit CritterAI(Creature *c) : PassiveAI(c) {}
+
+        void DamageTaken(Unit *done_by, uint32 & /*damage*/);
+        void EnterEvadeMode();
+};
+
+class TriggerAI : public NullCreatureAI
+{
+    public:
+        explicit TriggerAI(Creature *c) : NullCreatureAI(c) {}
+        void IsSummonedBy(Unit *summoner);
+};
+
+#endif
+