1 files changed, 67 insertions, 0 deletions
diff --git a/src/game/ScriptedFollowerAI.h b/src/game/ScriptedFollowerAI.h
new file mode 100644
index 00000000000..3ec47ee663a
--- /dev/null
+++ b/src/game/ScriptedFollowerAI.h
@@ -0,0 +1,67 @@
+/* Copyright (C) 2006 - 2009 ScriptDev2 <https://scriptdev2.svn.sourceforge.net/>
+ * This program is free software licensed under GPL version 2
+ * Please see the included DOCS/LICENSE.TXT for more information */
+
+#ifndef SC_FOLLOWERAI_H
+#define SC_FOLLOWERAI_H
+
+#include "ScriptSystem.h"
+
+enum eFollowState
+{
+    STATE_FOLLOW_NONE       = 0x000,
+    STATE_FOLLOW_INPROGRESS = 0x001,                        //must always have this state for any follow
+    STATE_FOLLOW_RETURNING  = 0x002,                        //when returning to combat start after being in combat
+    STATE_FOLLOW_PAUSED     = 0x004,                        //disables following
+    STATE_FOLLOW_COMPLETE   = 0x008,                        //follow is completed and may end
+    STATE_FOLLOW_PREEVENT   = 0x010,                        //not implemented (allow pre event to run, before follow is initiated)
+    STATE_FOLLOW_POSTEVENT  = 0x020                         //can be set at complete and allow post event to run
+};
+
+class TRINITY_DLL_DECL FollowerAI : public ScriptedAI
+{
+    public:
+        explicit FollowerAI(Creature* pCreature);
+        ~FollowerAI() {}
+
+        //virtual void WaypointReached(uint32 uiPointId) = 0;
+
+        void MovementInform(uint32 uiMotionType, uint32 uiPointId);
+
+        void AttackStart(Unit*);
+
+        void MoveInLineOfSight(Unit*);
+
+        void EnterEvadeMode();
+
+        void JustDied(Unit*);
+
+        void JustRespawned();
+
+        void UpdateAI(const uint32);                        //the "internal" update, calls UpdateFollowerAI()
+        virtual void UpdateFollowerAI(const uint32);        //used when it's needed to add code in update (abilities, scripted events, etc)
+
+        void StartFollow(Player* pPlayer, uint32 uiFactionForFollower = 0, const Quest* pQuest = NULL);
+
+        void SetFollowPaused(bool bPaused);                 //if special event require follow mode to hold/resume during the follow
+        void SetFollowComplete(bool bWithEndEvent = false);
+
+        bool HasFollowState(uint32 uiFollowState) { return (m_uiFollowState & uiFollowState); }
+
+    protected:
+        Player* GetLeaderForFollower();
+
+    private:
+        void AddFollowState(uint32 uiFollowState) { m_uiFollowState |= uiFollowState; }
+        void RemoveFollowState(uint32 uiFollowState) { m_uiFollowState &= ~uiFollowState; }
+
+        bool AssistPlayerInCombat(Unit* pWho);
+
+        uint64 m_uiLeaderGUID;
+        uint32 m_uiUpdateFollowTimer;
+        uint32 m_uiFollowState;
+
+        const Quest* m_pQuestForFollow;                     //normally we have a quest
+};
+
+#endif