#ifndef LGPrimaryGeneratorAction_h
#define LGPrimaryGeneratorAction_h 1

#include "G4VUserPrimaryGeneratorAction.hh"
#include "globals.hh"
#include "G4ThreeVector.hh"
#include "Randomize.hh"

class G4ParticleGun;
class G4Event;
class LGPrimaryGeneratorMessenger;

class LGPrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
{
public:
  LGPrimaryGeneratorAction(G4int);
  ~LGPrimaryGeneratorAction();
  
  void GeneratePrimaries(G4Event* anEvent);
  G4ParticleGun* getGunPtr() 	{ return particle_Gun; }
  
  G4double getParticleEnergy() { return particle_Energy; }
  G4double getPositionX() { return gun_Position.x(); }
  G4double getPositionY() { return gun_Position.y(); }
  
  void setParticleEnergy(G4double new_Value); 
  void setGunPosition(G4ThreeVector new_Value);
  
private:
  CLHEP::HepRandom      RandGen;

  G4int                 RandomDir;
  G4ThreeVector 	gun_Position;
  G4ThreeVector 	momentum_Direction;
  G4ThreeVector 	particle_Polarization;
  G4double 	particle_Energy;
  
  G4ParticleGun* particle_Gun;
  LGPrimaryGeneratorMessenger* generator_Messenger;
};

#endif /*LGPrimaryGeneratorAction_h*/