#ifndef FCALPrimaryGeneratorAction_h
#define FCALPrimaryGeneratorAction_h 1

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

class G4ParticleGun;
class G4Event;
class FCALPrimaryGeneratorMessenger;

class FCALPrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
{
	public:
		FCALPrimaryGeneratorAction(G4double particle_Eng, G4double gun_Azim);
	  	~FCALPrimaryGeneratorAction();

		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:
		G4ThreeVector 	gun_Position;
		G4ThreeVector 	momentum_Direction;
		G4ThreeVector 	particle_Polarization;
		G4double 	particle_Energy;
                G4double        gun_Azimuthal;
		
		G4ParticleGun* particle_Gun;
		FCALPrimaryGeneratorMessenger* generator_Messenger;
};

#endif /*FCALPrimaryGeneratorAction_h*/