//
// ********************************************************************
// * License and Disclaimer                                           *
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//
// This code implementation is the intellectual property of
// the RD44 GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//

// 1998 Dec 10, updated for geant4-00 , Hajime Yoshida
// 2002 March update for geant4.4.0

#include "MomoPrimaryGeneratorAction.hh"

#include "G4Event.hh"
#include "G4ParticleGun.hh"
#include "G4UImanager.hh"
#include "globals.hh"

MomoPrimaryGeneratorAction::MomoPrimaryGeneratorAction()
{
  G4int n_particle = 1;
  particleGun = new G4ParticleGun(n_particle);

  //  G4UImanager* UI = G4UImanager::GetUIpointer();
  //UI->ApplyCommand("/gun/particle geantino");
  //UI->ApplyCommand("/gun/energy 1.0 GeV");
  //UI->ApplyCommand("/gun/position -2.0 0.0 0.0 m");
}

MomoPrimaryGeneratorAction::~MomoPrimaryGeneratorAction()
{
  delete particleGun;
}

void MomoPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
{
  /*
  G4UImanager* UI = G4UImanager::GetUIpointer();
  G4int i = anEvent->GetEventID() % 3;
  switch(i)
  {
    case 0:
      UI->ApplyCommand("/gun/direction 1.0 0.0 0.0");
      break;
    case 1:
      UI->ApplyCommand("/gun/direction 1.0 0.1 0.0");
      break;
    case 2:
      UI->ApplyCommand("/gun/direction 1.0 0.0 0.1");
      break;
  }
  */
  particleGun->GeneratePrimaryVertex(anEvent);
}