mcMd/potentials/bond/BondPotential.h

#ifndef MCMD_BOND_POTENTIAL_H
#define MCMD_BOND_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 <util/param/ParamComposite.h>               // base class
#include <mcMd/potentials/misc/EnergyCalculator.h>   // base class
#include <mcMd/potentials/misc/StressCalculator.h>   // base class

#include <string>

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

namespace McMd
{

   using namespace Util;

   class Atom;

   class BondPotential : public ParamComposite, 
                         public EnergyCalculator, public StressCalculator
   {

   public:

      BondPotential();

      virtual ~BondPotential();



      virtual double energy(double rSq, int type) const = 0;
   
      virtual double forceOverR(double rSq, int type) const = 0;

      virtual 
      double randomBondLength(Util::Random* random, double beta, int type) 
             const = 0;

      virtual void set(std::string name, int type, double value) = 0;

      virtual double get(std::string name, int type) const = 0;

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



      virtual void addForces() = 0;

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

      // Prevent hiding of inherited function energy();
      using EnergyCalculator::energy;
    

   };

} 
#endif