/* -*- c++ -*- ----------------------------------------------------------
   LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
   https://www.lammps.org/, Sandia National Laboratories
   LAMMPS development team: developers@lammps.org

   Copyright (2003) Sandia Corporation.  Under the terms of Contract
   DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
   certain rights in this software.  This software is distributed under
   the GNU General Public License.

   See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */

#ifdef GRAN_SUB_MOD_CLASS
// clang-format off
GranSubModStyle(none,GranSubModRollingNone,ROLLING);
GranSubModStyle(sds,GranSubModRollingSDS,ROLLING);
// clang-format on
#else

#ifndef GRAN_SUB_MOD_ROLLING_H
#define GRAN_SUB_MOD_ROLLING_H

#include "gran_sub_mod.h"

namespace LAMMPS_NS {
namespace Granular_NS {

  class GranSubModRolling : public GranSubMod {
   public:
    GranSubModRolling(class GranularModel *, class LAMMPS *);
    virtual void calculate_forces() = 0;
  };

  /* ---------------------------------------------------------------------- */

  class GranSubModRollingNone : public GranSubModRolling {
   public:
    GranSubModRollingNone(class GranularModel *, class LAMMPS *);
    void calculate_forces() override {};
  };

  /* ---------------------------------------------------------------------- */

  class GranSubModRollingSDS : public GranSubModRolling {
   public:
    GranSubModRollingSDS(class GranularModel *, class LAMMPS *);
    void coeffs_to_local() override;
    void calculate_forces() override;

   protected:
    double k, mu, gamma;
  };

}    // namespace Granular_NS
}    // namespace LAMMPS_NS

#endif /*GRAN_SUB_MOD_ROLLING_H */
#endif /*GRAN_SUB_MOD_CLASS_H */
