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//
// --------------------------------------------------------------
//   GEANT 4 - Underground Dark Matter Detector Advanced Example
//
//      For information related to this code contact: Alex Howard
//      e-mail: alexander.howard@cern.ch
// --------------------------------------------------------------
// Comments
//
//                  Underground Advanced
//               by A. Howard and H. Araujo 
//                    (27th November 2001)
//
//
// PrimaryGeneratorAction program
// --------------------------------------------------------------

#include "DMXPrimaryGeneratorAction.hh"

#ifdef DMXENV_GPS_USE
#include "G4GeneralParticleSource.hh"
#else
#include "DMXParticleSource.hh"
#endif

#ifdef G4ANALYSIS_USE
#include "DMXAnalysisManager.hh"
#endif

#include "G4Event.hh"

#include "Randomize.hh"

#include "globals.hh"


DMXPrimaryGeneratorAction::DMXPrimaryGeneratorAction() {
  
#ifdef DMXENV_GPS_USE
  particleGun = new G4GeneralParticleSource();
#else
  particleGun = new DMXParticleSource();
#endif

  energy_pri=0;
  //  seeds=NULL;
  seeds[0] =-1;
  seeds[1] =-1;

}


DMXPrimaryGeneratorAction::~DMXPrimaryGeneratorAction() {

  delete particleGun;
}


void DMXPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) {

  energy_pri = 0.;

  // seeds
  //  seeds = HepRandom::getTheSeeds();
  seeds[0] = *CLHEP::HepRandom::getTheSeeds();
  seeds[1] = *(CLHEP::HepRandom::getTheSeeds()+1);

  particleGun->GeneratePrimaryVertex(anEvent);

  energy_pri = particleGun->GetParticleEnergy();
#ifdef G4ANALYSIS_USE 
  DMXAnalysisManager* analysis =  DMXAnalysisManager::getInstance();
  analysis->analysePrimaryGenerator(energy_pri);
#endif

}