/*
 *   ORXONOX - the hottest 3D action shooter ever to exist
 *                    > www.orxonox.net <
 *
 *
 *   License notice:
 *
 *   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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 *   Author:
 *      Fabian 'x3n' Landau
 *   Co-authors:
 *      ...
 *
 */

#ifndef _CommonController_H__
#define _CommonController_H__


#include "controllers/Controller.h"
#include "worldentities/ControllableEntity.h"
#include "worldentities/pawns/Pawn.h"
#include "util/Math.h"

#include "tools/Timer.h"
#include "tools/interfaces/Tickable.h"
#include <limits>
#include "worldentities/Actionpoint.h"

namespace orxonox
{

    namespace FormationMode
    {
        enum Value
        {
            FINGER4, DIAMOND, WALL
        };
    }
    namespace Rank
    {
        enum Value 
        { 
            NONE, SECTIONLEADER, DIVISIONLEADER, WINGMAN 
        };

    }
    namespace Action
    {  
        enum Value
        {
            NONE, FLY, FIGHT, PROTECT, FIGHTALL, ATTACK
        };
        
    }
    
    struct Point {
        Action::Value action;
        std::string name;
        Vector3 position;
    } ;


    
 

    class _OrxonoxExport CommonController : public Controller, public Tickable
    {

        public:
            static const float hardcoded_projectile_speed = 750;
            static const float ACTION_INTERVAL = 1.0f;

            CommonController(Context* context);
            virtual ~CommonController();

            virtual void tick(float dt); 

            //----[XML data]----
                virtual void XMLPort(Element& xmlelement, XMLPort::Mode mode);
                //----[Action data]----
                    Action::Value getAction ();
                    void setAction (Action::Value action);
                    void setAction (Action::Value action, ControllableEntity* target);
                    void setAction (Action::Value action, const Vector3& target);
                    void setAction (Action::Value action, const Vector3& target,  const Quaternion& orient );
                    void setActionXML( std::string val);
                    std::string getActionXML();
                //----[/Action data]----
                //----[Formation data]----
                    virtual void setFormationModeXML(std::string val);
                    virtual std::string getFormationModeXML();
                    virtual void setFormationMode(FormationMode::Value val)
                        { this->formationMode_ = val; }
                    inline FormationMode::Value getFormationMode() const
                        { return this->formationMode_; }
                //----[/Formation data]----
                //----[Rank data]----
                    virtual void setRank(Rank::Value val)
                        { this->rank_ = val; }
                    inline Rank::Value getRank() const
                        { return this->rank_; }
                //----[/Rank data]----
                //----[Protect data]----
                    void setProtectXML( std::string val );
                    std::string getProtectXML ();
                    void setProtect (ControllableEntity* protect);
                    ControllableEntity* getProtect ();
                //----[/Protect data]----
                //----[Actionpoint data]----
                    void addActionpoint(WorldEntity* waypoint);
                    WorldEntity* getActionpoint(unsigned int index) const;
                //----[/Actionpoint data]----
            //----[/XML data]----

            //----[Interaction with other Controllers]----
                virtual bool setWingman(CommonController* wingman);
                virtual bool hasWingman();        

                void setPositionOfTarget(const Vector3& target);
                void setOrientationOfTarget(const Quaternion& orient);

                void setTarget(ControllableEntity* target);
                ControllableEntity* getTarget();
                bool hasTarget();

                void setTargetPosition(const Vector3& target);
                void setTargetOrientation(const Quaternion& orient);
                void setTargetOrientation(ControllableEntity* target);
            //----[/Interaction with other Controllers]----

            //----[Helper functions]----
                float randomInRange(float a, float b);
                static float distance(ControllableEntity* entity1, ControllableEntity* entity2);
                static bool sameTeam (ControllableEntity* entity1, ControllableEntity* entity2, Gametype* gt);
                static bool isLooking( ControllableEntity* entityThatLooks, ControllableEntity* entityBeingLookedAt, float angle ) ;
                static std::string getName( Pawn* entity ) ;

                float squaredDistanceToTarget() const;
                bool isLookingAtTarget(float angle) const;
            //----[/Helper functions]----

        protected:
            //----[Flying functionality]----
                void stopMoving();

                void moveToPoint(const Vector3& relativeTargetPosition, float angleRoll);
                bool moveAndRoll(float dt);

                void moveToPosition(const Vector3& target, float dt);
                void moveToTargetPosition(float dt);

                void copyOrientation(const Quaternion& orient, float dt);
                void copyTargetOrientation(float dt);

                void lookAtTarget(float dt);
                void stopLookingAtTarget();
                void startLookingAtTarget();

                bool bLookAtTarget_;        
            //----[/Flying functionality]----
            
            //----[Fighting functionality]----
                void maneuver();
                void dodge(Vector3& thisPosition, Vector3& diffUnit);
                void aimAtTarget();           
                bool canFire();
                void doFire();
                void setClosestTarget();
                Pawn* closestTarget();

                bool bShooting_;
                int maneuverCounter_;         
            //----[/Fighting functionality]----            
            
            //----[where-to-fly information]----
                bool bHasTargetPosition_;
                Vector3 targetPosition_;
                bool bHasTargetOrientation_;
                Quaternion targetOrientation_;
                
               
            //----[/where-to-fly information]----
            //----[protect information]----
                WeakPtr<ControllableEntity> protect_;
            //----[/protect information]----
            //----[who-to-kill information]----
                WeakPtr<ControllableEntity> target_;
               
                bool bHasPositionOfTarget_;
                Vector3 positionOfTarget_;
                bool bHasOrientationOfTarget_;
                Quaternion orientationOfTarget_;
            //----[/who-to-kill information]----

            //----[Actionpoint information]----
                std::vector<WeakPtr<WorldEntity> > actionpoints_;
                float squaredaccuracy_;
                Point  currentActionpoint_;
                std::vector<Point > parsedActionpoints_;
                void executeActionpoint();
                void nextActionpoint();
            //----[/Actionpoint information]----
            //----["Private" variables]----
                FormationMode::Value formationMode_;
                Rank::Value rank_;
                std::string protectName_;
                std::string targetName_;
                Action::Value action_;
                int attackRange_;
                
            //----[/"Private" variables]----               
    };
}

#endif /* _CommonController_H__ */