/*   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:
 *      remartin
 *   Co-authors:
 *      ...
 *
 */

/**

    @file 
    @author remartin
    @brief Asteroid field with lots of parameters. Derived from asteroidField.lua

    Generates a bunch of asteroids that may contain some stuff. 
    It is required to wait until all XML-arguments are set. That's why the actual 
    generation happens when tick() gets called for the first time. 
    
*/


#include "SpicedAsteroidField.h"
#include "AsteroidMinable.h"

#include <algorithm>

#include "core/CoreIncludes.h"
#include "core/XMLPort.h"
#include "util/Math.h"

#include "graphics/Billboard.h"


namespace orxonox{

    RegisterClass(SpicedAsteroidField);

    SpicedAsteroidField::SpicedAsteroidField(Context* context) : BaseObject(context) {

        RegisterObject(SpicedAsteroidField);

        // Default Values: 
        this->count = 30; 
        this->mDensity = 0.5;
        this->position = Vector3(0,0,0);
        this->maxSize = 40; 
        this->minSize = 1; 
        this->radius = 1000;
        this->foggy = true; 
        this->fogDensity = 0.5;
    }

    SpicedAsteroidField::~SpicedAsteroidField(){

    }

    void SpicedAsteroidField::create(){

        float size;
        float pX;
        float pY;
        float pZ;

        for(int gertrud = 0; gertrud<count; ++gertrud){

            AsteroidMinable* a = new AsteroidMinable(this->getContext());

            size = roundf(rnd(this->maxSize - this->minSize)) + this->minSize;
            a->setSize(size); 

            pX = roundf(rnd(2*this->radius)) - radius;
            pY = roundf(rnd(2*this->radius)) - radius;
            pZ = roundf(rnd(2*this->radius)) - radius;
            Vector3 relPos(pX, pY, pZ);
            a->setPosition(this->position + relPos);

            bool spiced = (rnd() < (this->mDensity)); // Whether the asteroid does drop pickups etc. 
            a->setDropStuff(spiced);
            
            // Fog is iplemented with billboards (as in asteroidField.lua, that bloke had the idea)
            if(this->foggy && mod(gertrud, 5) == 0){
                Billboard* bb = new Billboard(this->getContext());
                bb->setPosition(this->position + relPos);
                bb->setMaterial("Smoke/Smoke");
                bb->setScale(size);
                bb->setColour(ColourValue(this->fogDensity, this->fogDensity, this->fogDensity));    
            }
        }
    }

    void SpicedAsteroidField::XMLPort(Element& xmlelement, XMLPort::Mode mode){

        SUPER(SpicedAsteroidField, XMLPort, xmlelement, mode); 

        XMLPortParam(SpicedAsteroidField, "count", setCount, getCount, xmlelement, mode);
        XMLPortParam(SpicedAsteroidField, "mDensity", setMineralDensity, getMineralDensity, xmlelement, mode);
        XMLPortParam(SpicedAsteroidField, "position", setPosition, getPosition, xmlelement, mode);
        XMLPortParam(SpicedAsteroidField, "maxSize", setMaxSize, getMaxSize, xmlelement, mode);
        XMLPortParam(SpicedAsteroidField, "minSize", setMinSize, getMinSize, xmlelement, mode);
        XMLPortParam(SpicedAsteroidField, "radius", setRadius, getRadius, xmlelement, mode);
        XMLPortParam(SpicedAsteroidField, "foggy", setFog, isFoggy, xmlelement, mode);
        XMLPortParam(SpicedAsteroidField, "fogDensity", setFogDensity, getFogDensity, xmlelement, mode);

    }

    void SpicedAsteroidField::tick(float dt){

        this->create();
        this->destroyLater();
    }

}