GGSHEPEvtGeneratorAction.cpp

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/*
 * GGSHEPEvtGeneratorAction.cpp
 *
 *  Created on: 10 Oct 2013
 *      Author: Nicola Mori
 */

#include "montecarlo/generators/GGSHEPEvtGeneratorAction.h"
#include "montecarlo/pluginmanagers/GGSMCPluginMacros.h"

#include "G4HEPEvtInterface.hh"

RegisterGA(GGSHEPEvtGeneratorAction, hepEvt);

GGSHEPEvtGeneratorAction::GGSHEPEvtGeneratorAction()
    : _hepEvtGenerator(nullptr), _messenger(this, "/GGS/generatorActions/hepEvt/"), _hepEvtPos(0., 0., 0.),
      _hepEvtTime(0.) {

  _messenger.DeclareProperty("file", _hepEvtFile, "File containing the generated events in the HEPEvt format.")
      .SetStates(G4State_Idle);
  _messenger.DeclareProperty("position", _hepEvtPos, "Position of generation vertex.")
      .SetDefaultUnit("cm")
      .SetStates(G4State_Idle);
  _messenger.DeclareProperty("time", _hepEvtTime, "Time of event generation.")
      .SetDefaultUnit("ns")
      .SetStates(G4State_Idle);
}

void GGSHEPEvtGeneratorAction::GeneratePrimaries(G4Event *anEvent) {
  if (!_hepEvtGenerator) {
    _hepEvtGenerator = std::make_unique<G4HEPEvtInterface>(_hepEvtFile);
    _hepEvtGenerator->SetParticlePosition(_hepEvtPos);
    _hepEvtGenerator->SetParticleTime(_hepEvtTime);
  }
  _hepEvtGenerator->GeneratePrimaryVertex(anEvent);
}

GGSParameters GGSHEPEvtGeneratorAction::GetParameters() const {
  GGSParameters params;
  params.SetParam("generator", std::string("hepEvt"));
  return params;
}