mcMd/potentials/external/ExternalPotential.h

#ifndef MCMD_EXTERNAL_POTENTIAL_H
#define MCMD_EXTERNAL_POTENTIAL_H

/*
* Simpatico - Simulation Package for Polymeric and Molecular Liquids
*
* Copyright 2010 - 2017, The Regents of the University of Minnesota
* Distributed under the terms of the GNU General Public License.
*/

#include <mcMd/potentials/misc/EnergyCalculator.h>   // base class
#include <util/param/ParamComposite.h>               // base class

#include <string>

namespace Util
{
   class Vector;
   class Tensor;
   class Random;
}

namespace McMd
{

   using namespace Util;

   class Atom;

   class ExternalPotential : public ParamComposite, public EnergyCalculator
   {

   public:

      ExternalPotential()
      {  setClassName("ExternalPotential"); }

      virtual ~ExternalPotential()
      {}



      virtual double energy(const Vector& position, int i) const = 0;

      virtual void getForce(const Vector& position, int type, Vector& force) const = 0;

      virtual std::string interactionClassName() const = 0;
   


      virtual void addForces() = 0;

      virtual double atomEnergy(const Atom& atom) const = 0;

      // Prevent hiding of inherited accessor function
      using EnergyCalculator::energy;


   };

}
#endif