/*
 * Copyright (C) 2010-2022 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/>.
 */
#include "PidObservable.hpp"

#include "ParticleTraits.hpp"
#include "fetch_particles.hpp"

#include <functional>
#include <vector>

namespace Observables {
std::vector<double> PidObservable::operator()() const {
  std::vector<Particle> particles = fetch_particles(ids());

  std::vector<std::reference_wrapper<const Particle>> particle_refs(
      particles.begin(), particles.end());
  return this->evaluate(ParticleReferenceRange(particle_refs),
                        ParticleObservables::traits<Particle>{});
}
} // namespace Observables
