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/// \file B3/B3a/include/PrimaryGeneratorAction.hh
/// \brief Definition of the B3::PrimaryGeneratorAction class

#ifndef B3PrimaryGeneratorAction_h
#define B3PrimaryGeneratorAction_h 1

#include "G4VUserPrimaryGeneratorAction.hh"
#include "G4ParticleGun.hh"
#include "globals.hh"

class G4ParticleGun;
class G4Event;

namespace B3
{

/// The primary generator action class with particle gum.
///
/// It defines an ion (F18), at rest, randomly distribued within a zone
/// in a patient defined in GeneratePrimaries(). Ion F18 can be changed
/// with the G4ParticleGun commands (see run2.mac).

class PrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
{
  public:
    PrimaryGeneratorAction();
    ~PrimaryGeneratorAction() override;

    void GeneratePrimaries(G4Event* event) override;

   // const G4ParticleGun* GetParticleGun() const { return fParticleGun; }
    
    // set methods
  void SetRandomFlag(G4bool value);

  private:
    G4ParticleGun* fParticleGun = nullptr; // pointer a to G4 gun class


    
  public:
  //const G4ParticleGun* GetParticleGun() const;
  const G4ParticleGun* GetParticleGun() const { return fParticleGun; }
    	

};

}

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#endif