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/// \file runAndEvent/RE02/include/RE02PrimaryGeneratorAction.hh
/// \brief Definition of the RE02PrimaryGeneratorAction class
//
//
//
 
#ifndef RE02PrimaryGeneratorAction_h
#define RE02PrimaryGeneratorAction_h 1

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

class RE02DetectorConstruction;
class G4ParticleGun;
class G4Event;

//
/// User primary particle generator class
///
/// - void GeneratePrimaries(G4Event*)
///     an incident particle is proton with 150 MeV energy at the position 
///     (x,y,-100 cm) toward the (0,0,1) direction. The x and y positions are
///     uniformly varied from -5 mm to 5 mm, respectively.
//
class RE02PrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
{
  public:
    RE02PrimaryGeneratorAction();    
   ~RE02PrimaryGeneratorAction();

  public:
    virtual void GeneratePrimaries(G4Event*);

  private:
    G4double fSigmaPosition; // Initial beam spot size in x-y plane.
    G4ParticleGun* fParticleGun;
};

//

#endif