PetAI.h

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/*
 * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
 * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef TRINITY_PETAI_H
#define TRINITY_PETAI_H

#include "CreatureAI.h"
#include "Timer.h"

class Creature;
class Spell;

class TC_GAME_API PetAI : public CreatureAI
{
 public:

 explicit PetAI(Creature* c);

 void UpdateAI(uint32) override;
 static int Permissible(const Creature*);

 void KilledUnit(Unit* /*victim*/) override;
 void AttackStart(Unit* target) override;
 void MovementInform(uint32 moveType, uint32 data) override;
 void OwnerAttackedBy(Unit* attacker) override;
 void OwnerAttacked(Unit* target) override;
 void AttackedBy(Unit* attacker) override;
 void ReceiveEmote(Player* player, uint32 textEmote) override;

 // The following aren't used by the PetAI but need to be defined to override
 // default CreatureAI functions which interfere with the PetAI
 //
 void MoveInLineOfSight(Unit* /*who*/) override { } // CreatureAI interferes with returning pets
 void MoveInLineOfSight_Safe(Unit* /*who*/) { } // CreatureAI interferes with returning pets
 void EnterEvadeMode(EvadeReason /*why*/) override { } // For fleeing, pets don't use this type of Evade mechanic

 private:
 bool _isVisible(Unit*) const;
 bool _needToStop(void);
 void _stopAttack(void);

 void UpdateAllies();

 TimeTracker i_tracker;
 GuidSet m_AllySet;
 uint32 m_updateAlliesTimer;

 Unit* SelectNextTarget(bool allowAutoSelect) const;
 void HandleReturnMovement();
 void DoAttack(Unit* target, bool chase);
 bool CanAttack(Unit* target);
 void ClearCharmInfoFlags();
};
#endif