/*
 *   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:
 *      ...
 *
 */

/**
    @file ParticleProjectile.h
    @brief Implementation of the ParticleProjectile class.
*/

#include "ParticleProjectile.h"

#include <OgreParticleEmitter.h>
#include "core/CoreIncludes.h"
#include "tools/ParticleInterface.h"
#include "Scene.h"

namespace orxonox
{
    RegisterClass(ParticleProjectile);

    ParticleProjectile::ParticleProjectile(Context* context) : Projectile(context)
    {
        RegisterObject(ParticleProjectile);

        this->particles_ = nullptr;

        //setEffect("Orxonox/sparks2");
    }

    ParticleProjectile::~ParticleProjectile()
    {
        if (this->isInitialized() && this->particles_)
        {
            this->detachOgreObject(this->particles_->getParticleSystem());
            delete this->particles_;
        }
    }

    /**
    @brief
        Is called when the visibility of the ParticleProjectile has changed.
    */
    void ParticleProjectile::changedVisibility()
    {
        SUPER(ParticleProjectile, changedVisibility);

        // Change the visibility of the particles.
        if (this->particles_)
            this->particles_->setEnabled(this->isVisible());
    }

    void ParticleProjectile::setEffect(const std::string& effect)
    {
        // If we already have a particle interface, delete it
        if (this->particles_)
        {
            this->detachOgreObject(this->particles_->getParticleSystem());
            delete this->particles_;
            this->particles_ = nullptr;
        }

        if (GameMode::showsGraphics())
        {
            // Create the particles.
            this->particles_ = new ParticleInterface(this->getScene()->getSceneManager(), effect, LODParticle::Normal);
            this->attachOgreObject(this->particles_->getParticleSystem());
            this->particles_->setKeepParticlesInLocalSpace(0);

            for (unsigned int i = 0; i < this->particles_->getNumEmitters(); ++i)
                this->particles_->getEmitter(i)->setDirection(-WorldEntity::FRONT);
        }
        else
        {
            this->particles_ = nullptr;
        }
    }
}