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// $Id: B2PrimaryGeneratorAction.hh 68058 2013-03-13 14:47:43Z gcosmo $
//
/// \file B2PrimaryGeneratorAction.hh
/// \brief Definition of the B2PrimaryGeneratorAction class

#ifndef B2PrimaryGeneratorAction_h
#define B2PrimaryGeneratorAction_h 1

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

class G4ParticleGun;
class G4Event;

/// The primary generator action class with particle gum.
///
/// It defines a single particle which hits the Tracker 
/// perpendicular to the input face. The type of the particle
/// can be changed via the G4 build-in commands of G4ParticleGun class 
/// (see the macros provided with this example).

class B2PrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
{
  public:
    B2PrimaryGeneratorAction();    
    virtual ~B2PrimaryGeneratorAction();

    virtual void GeneratePrimaries(G4Event* );

    G4ParticleGun* GetParticleGun() {return fParticleGun;}
  
    // Set methods
    void SetRandomFlag(G4bool );

  private:
    G4ParticleGun*          fParticleGun; // G4 particle gun
};

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#endif