source: code/branches/turretFS14/src/modules/objects/controllers/TurretController.cc @ 10049

/*
 *   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:
 *      Martin Mueller
 *   Co-authors:
 *      ...
 *
 */

#include "TurretController.h"
#include "worldentities/pawns/Pawn.h"
#include "Turret.h"

 namespace orxonox
 {
        RegisterClass(TurretController);

        TurretController::TurretController(Context* context) : ArtificialController(context)
        {
                RegisterObject(TurretController);

                this->once_ = false;

        }

        TurretController::~TurretController()
        {

        }

        void TurretController::searchTarget()
        {
        Turret* turret = orxonox_cast<Turret*>(this->getControllableEntity());
        if(target_ && turret->isInRange(target_->getWorldPosition()))
        {
                return;
        }
        else
        {
                this->forgetTarget();
                turret->setTarget(0);
        }


        ControllableEntity* parent = orxonox_cast<ControllableEntity*>(turret->getParent());
        if(parent)
        {
                Pawn* parenttarget = orxonox_cast<Pawn*>(parent->getTarget());
                if(parenttarget && turret->isInRange(parenttarget->getWorldPosition()))
                {
                        this->setTarget(parenttarget);
                        turret->setTarget(parenttarget);
                        return;
                }
        }

                for (ObjectList<Pawn>::iterator it = ObjectList<Pawn>::begin(); it != ObjectList<Pawn>::end(); ++it)
        {
                Pawn* entity = orxonox_cast<Pawn*>(*it);
            if (this->FormationController::sameTeam(this->getControllableEntity(), entity, this->getGametype()))
                continue;

            if(turret->isInRange(entity->getWorldPosition()))
            {
                this->setTarget(entity);
                turret->setTarget(entity);
                break;
            }
        }               
        }

    bool TurretController::isLookingAtTargetNew(float angle) const
    {
        return (getAngle(this->getControllableEntity()->getWorldPosition(), this->getControllableEntity()->getWorldOrientation() * WorldEntity::FRONT, this->target_->getWorldPosition()) < angle);
    }

        void TurretController::tick(float dt)
        {
            if (!this->isActive() || !this->getControllableEntity())
                return;


                if(!this->once_)
                {
                        if(this->getTeam() != -1)
                        {
                                orxout(internal_warning) << "Turret: Team already set, may result in undesired behaviour" << endl;
                        }
                        else
                        {
                    //Make sure the turret is in the same team as the parent
                    ControllableEntity* parent = orxonox_cast<ControllableEntity*> (this->getControllableEntity()->getParent());
                    if(parent)
                    {
                        Controller* parentcontroller = parent->getController();
                        if(parentcontroller)
                        {
                            this->setTeam(parentcontroller->getTeam());
                        }
                        else
                        {
                            this->setTeam(parent->getTeam());
                        }
                        this->getControllableEntity()->setTeam(parent->getTeam());
                    }
                }
            this->once_ = true;
        }

                this->searchTarget();
                if(target_)
                {
                        Turret* turret = orxonox_cast<Turret*> (this->getControllableEntity());
                        this->aimAtTarget();
                        turret->aimAtPosition(target_->getWorldPosition());
                        if(this->isLookingAtTargetNew(Degree(5).valueRadians()))
                        {
                                this->getControllableEntity()->fire(0);
                        }
                }
        }
 }