EmptyFrictionInteraction.h

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// This file is part of the MercuryDPM project (https://www.mercurydpm.org).
// Copyright (c), The MercuryDPM Developers Team. All rights reserved.
// License: BSD 3-Clause License; see the LICENSE file in the root directory.
 
#ifndef EMPTYTANGENTIALINTERACTION_H
#define EMPTYTANGENTIALINTERACTION_H
 
#include "Interactions/BaseInteraction.h"
#include "Math/Vector.h"
 
class BaseParticle;
 
class EmptyFrictionSpecies;
 
class BaseInteractable;
 
class EmptyFrictionInteraction : public virtual BaseInteraction
{
public:
    typedef EmptyFrictionSpecies SpeciesType;
    
    EmptyFrictionInteraction(BaseInteractable* P, BaseInteractable* I, unsigned timeStamp);
    
    //used for mpi
    EmptyFrictionInteraction();
    
    EmptyFrictionInteraction(const EmptyFrictionInteraction& p);
    
    ~EmptyFrictionInteraction() override;
    
    void computeFrictionForce();
    
    void computeFrictionInteraction();
    
    void read(std::istream& is) override;
    
    void write(std::ostream& os) const override;
    
    Mdouble getElasticEnergy() const override;
    
    const EmptyFrictionSpecies* getSpecies() const;
    
    std::string getBaseName() const;
 
// specific for tangential forces
    void integrate(Mdouble timeStep) override;
    
    Mdouble getTangentialOverlap() const override;
    
    const Vec3D getTangentialForce() const override;
};
 
#endif