/*  This file is part of the OpenLB library
 *
 *  Copyright (C) 2013 Thomas Henn, Mathias J. Krause
 *  E-mail contact: info@openlb.net
 *  The most recent release of OpenLB can be downloaded at
 *  <http://www.openlb.net/>
 *
 *  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.
 */

#ifndef BUOYANCYFORCE3D_H_
#define BUOYANCYFORCE3D_H_

#include "particles/particleSystem3D.h"
#include "forces.h"
#include "core/unitConverter.h"
//#include "../../functors/superLatticeLocalF3D.h"


namespace olb {

template<typename T, template<typename U> class PARTICLETYPE>
class ParticleSystem3D;

template<typename T, template<typename U> class PARTICLETYPE, typename DESCRIPTOR>
class BuoyancyForce3D: public Force3D<T, PARTICLETYPE> {

public:
  BuoyancyForce3D(UnitConverter<T,DESCRIPTOR> const& converter, std::vector<T> direction,
                  T g = 9.81);
  ~BuoyancyForce3D() override { };
  void applyForce(typename std::deque<PARTICLETYPE<T> >::iterator p, int pInt,
                  ParticleSystem3D<T, PARTICLETYPE>& psSys) override;

//  void computeForce(int pInt, ParticleSystem3D<T, PARTICLETYPE>* psSys,
//                    T force[3]);
private:
  std::vector<T> _direction;
  T _g;
  T _physDensity;
};

}

#endif /* BUOYANCYFORCE3D_H_ */