/*
 *   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:
 *      Dominik Solenicki
 *
 */

#include "SectionController.h"

namespace orxonox
{

    RegisterClass(SectionController);

    SectionController::SectionController(Context* context) : LeaderController(context)
    {
        RegisterObject(SectionController);
        this->setFormationMode(FormationMode::FINGER4);

        this->actionTimer_.setTimer(ACTION_INTERVAL, true, createExecutor(createFunctor(&SectionController::action, this)));
        this->myWingman_ = 0;
        this->myDivisionLeader_ = 0;
        this->rank_ = Rank::SECTIONLEADER;

        orxout(internal_error) << this << "Was created" << endl;

    }
   
    SectionController::~SectionController()
    {
       
    }

    void SectionController::tick(float dt)
    {
        if (!this->isActive())
            return;
        
        
        if (this->bHasTargetPosition_)
        {
            this->moveToTargetPosition();
        }
        if (this->bShooting_)
            doFire();
        
        SUPER(SectionController, tick, dt);
    }

    void SectionController::action()
    {
        //this->target_ = this->sectionTarget_;        
        if (!myDivisionLeader_)
        {
            LeaderController* newDivisionLeader = findNewDivisionLeader();
            this->myDivisionLeader_ = newDivisionLeader;
            if (newDivisionLeader)
                orxout(internal_error) << "new DivisionLeader set" << endl;
            else
            {
                
            }

        }
        setTargetPositionOfWingman();
        if (this->target_ && this->myWingman_)
            this->myWingman_->setTarget(this->target_);
        if (canFire())
           this->bShooting_ = true;
        else
            this->bShooting_ = false;
                

    }
    
    void SectionController::setTargetPositionOfWingman()
    {
        if (!this->myWingman_)
            return;
        Vector3* targetRelativePositionOfWingman;
        switch (this->formationMode_){
            case FormationMode::WALL:
            {
                targetRelativePositionOfWingman = new Vector3 (-400, 0, 0);  
                break;
            }
            case FormationMode::FINGER4: 
            {
                targetRelativePositionOfWingman = new Vector3 (-400, 0, -200);  
                break;
            }
            case FormationMode::VEE: 
            {
                break;
            }
            case FormationMode::DIAMOND: 
            {
                targetRelativePositionOfWingman = new Vector3 (400, -200, 0);                  
                break;
            }
        }
        Quaternion orient = this->getControllableEntity()->getWorldOrientation();
        
        Vector3 targetAbsolutePositionOfWingman = ((this->getControllableEntity()->getWorldPosition()) + 
        (this->getControllableEntity()->getWorldOrientation()* (*targetRelativePositionOfWingman)));
        
        myWingman_->setTargetOrientation(orient);
        myWingman_->setTargetPosition(targetAbsolutePositionOfWingman);
       
    }
    LeaderController* SectionController::findNewDivisionLeader()
    {

        if (!this->getControllableEntity())
            return 0;

        LeaderController* closestLeader = 0;
        float minDistance =  std::numeric_limits<float>::infinity();
        //go through all pawns
        for (ObjectList<LeaderController>::iterator it = ObjectList<LeaderController>::begin(); it; ++it)
        {
            //0ptr or not DivisionController?
            if (!(it) || !((it)->getRank() == Rank::DIVISIONLEADER) || !(it->getControllableEntity()))
                continue;
            //same team?
            if ((this->getControllableEntity()->getTeam() != (it)->getControllableEntity()->getTeam()))
                continue;

            //is equal to this?
            if (orxonox_cast<ControllableEntity*>(*it) == this->getControllableEntity())
                continue;


            float distance = ((it)->getControllableEntity()->getPosition() - this->getControllableEntity()->getPosition()).length();
            
            if (distance < minDistance && !(it->hasFollower()))
            {
                closestLeader = *it;
                minDistance = distance;
            }
          
        }
        if (closestLeader)
        {
            if (closestLeader->setFollower(this))
                return closestLeader;
        }
        return 0;

    }
    bool SectionController::setWingman(CommonController* cwingman)
    {
        WeakPtr<WingmanController> wingman = orxonox_cast<WingmanController*>(cwingman);

        if (!this->myWingman_)
        {
            this->myWingman_ = wingman;
            return true;
        }
        else
        {
            return false;
        }
    }
    
    bool SectionController::hasWingman()
    {
        if (this->myWingman_)
            return true;
        else
            return false;
    }

    void SectionController::XMLPort(Element& xmlelement, XMLPort::Mode mode)
    {
        SUPER(SectionController, XMLPort, xmlelement, mode);

        //XMLPortParam(SectionController, "target_", setTarget, getTarget, xmlelement, mode).defaultValues(100.0f);
    }

    
   

}