EventInterface.h

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/*
 *  CepGen: a central exclusive processes event generator
 *  Copyright (C) 2013-2024  Laurent Forthomme
 *
 *  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
 *  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 CepGenAddOns_Pythia6Wrapper_EventInterface_h
#define CepGenAddOns_Pythia6Wrapper_EventInterface_h
 
#include <vector>
 
#include "CepGen/Physics/Modes.h"
 
namespace cepgen {
  class Event;
  namespace utils {
    class RandomGenerator;
  }
  namespace pythia6 {
    class EventInterface {
    public:
      explicit EventInterface(Event&, mode::Kinematics, utils::RandomGenerator*);
 
      void prepareHadronisation();
      size_t numStrings() const { return evt_strings_.size(); }
      void run();
 
    private:
      void fillEventBlock();
 
      Event& evt_;                   // NOT owning
      utils::RandomGenerator* rnd_;  
      std::vector<Particle::Role> roles_;
 
      std::pair<short, short> pickPartonsContent();
 
      using string_t = std::vector<int>;
      std::vector<string_t> evt_strings_;
    };
  }  // namespace pythia6
}  // namespace cepgen
 
#endif