com.hpp

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/*
 * Copyright (C) 2025 The ESPResSo project
 *
 * This file is part of ESPResSo.
 *
 * ESPResSo 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.
 *
 * ESPResSo 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/>.
 */
 
#pragma once
 
#include <config/config.hpp>
 
#ifdef ESPRESSO_VIRTUAL_SITES_CENTER_OF_MASS
 
#include "BoxGeometry.hpp"
#include "cell_system/CellStructure.hpp"
 
#include <optional>
 
void vs_com_update_particles(CellStructure &cell_structure,
                             BoxGeometry const &box_geo);
void vs_com_back_transfer_forces_and_torques(CellStructure &cell_structure);
 
std::optional<int> get_pid_for_vs_com(CellStructure &cell_structure,
                                      int mol_id);
 
#endif // ESPRESSO_VIRTUAL_SITES_CENTER_OF_MASS