ParticleCollision.h

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/*******************************************************************************
 * Copyright (C) 2017-2023 Theodore Chang
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
#ifndef PARTICLECOLLISION_H
#define PARTICLECOLLISION_H
 
#include "Constraint.h"
 
class Node;
 
class ParticleCollision : public Constraint {
    const unsigned num_dof;
 
    std::mutex resistance_mutex;
 
    [[nodiscard]] virtual double compute_f(double) const = 0;
    [[nodiscard]] virtual double compute_df(double) const = 0;
 
protected:
    [[nodiscard]] vec get_position(const shared_ptr<Node>&) const;
 
    void apply_contact(const shared_ptr<DomainBase>&, const shared_ptr<Node>&, const shared_ptr<Node>&, bool);
 
    virtual int process_meta(const shared_ptr<DomainBase>&, bool) = 0;
 
public:
    ParticleCollision(unsigned, unsigned, unsigned);
 
    int initialize(const shared_ptr<DomainBase>&) override;
 
    int process(const shared_ptr<DomainBase>&) override;
    int process_resistance(const shared_ptr<DomainBase>&) override;
};
 
#endif