ContactManager.h

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// SPDX-License-Identifier: MIT
// Copyright (c) 2021-2025 MPM-Geomechanics Development Team
 
#ifndef CONTACT_MANAGER_H_
#define CONTACT_MANAGER_H_
 
#include "Eigen/Core"
using Eigen::Vector3d;
 
#include "Mesh/Node.h"
#include "Mesh/Mesh.h"
#include "Body/Body.h"
#include "Contact.h"
 
#include <unordered_map>
#include <vector>
using std::vector;
 
class ContactManager {
public:
    ContactManager(vector<Contact*> contact_List, double real_distance_correction_coefficient);
 
    void computeContactForces(Mesh* mesh, double time_step);
 
    void nodalUnitNormal(Mesh* mesh, vector<Body*>* bodies);
 
    void contactNodalDetection(Mesh* mesh, vector<Body*>* bodies);
 
    void realDistanceCorrection(Mesh* mesh, vector<Body*>* bodies);
 
    void nodalMomentumContactUpdate(Mesh* mesh, double time_step);
 
    inline bool getRealDistanceCorrectionFlag() const { return this->realDistanceCorrectionActive; }
 
    inline bool getContactDetectionFlag() const { return this->contactDetection; };
 
    void applyVelocityContactCorrection(Mesh* mesh, vector<Body*>* bodies, double dt);
 
    private:
 
    bool contactDetection = false; 
    vector<Contact*> contactList; 
    double realDistanceCorrectionCoefficient = 0.0; 
    bool realDistanceCorrectionActive = false; 
};
 
#endif /* CONTACT_MANAGER_H_ */