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// $Id$
//
/// \file exampleB1.cc
/// \brief Main program of the B1 example
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#include "G4VUserDetectorConstruction.hh"
#include "G4Material.hh"
#include "G4Box.hh"
#include "G4LogicalVolume.hh"
#include "G4PVPlacement.hh"
#include "globals.hh"

class SimpleDetectorConstruction : public G4VUserDetectorConstruction
{
  public:
	SimpleDetectorConstruction(): G4VUserDetectorConstruction(){}
    virtual ~SimpleDetectorConstruction(){}

  public:
      virtual G4VPhysicalVolume* Construct(){
    	  G4Material* world_mat =
    	    new G4Material("ArgonGas", 18., 39.95*g/mole, 1.782*mg/cm3);
    	  G4Box* solidWorld =
    	    new G4Box("World", 1.0*m, 1.0*m, 1.0*m);
    	  G4LogicalVolume* logicWorld =
    	    new G4LogicalVolume(solidWorld, world_mat, "World");
    	  G4VPhysicalVolume* physWorld =
    	    new G4PVPlacement(0, G4ThreeVector(), logicWorld, "World", 0, false,0);
    	  return physWorld;
    	}
};
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#include "G4VUserPrimaryGeneratorAction.hh"
#include "G4ParticleGun.hh"

class SimplePrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
{
  public:
	SimplePrimaryGeneratorAction(): G4VUserPrimaryGeneratorAction(){
    	fParticleGun  = new G4ParticleGun();
    }
    virtual ~SimplePrimaryGeneratorAction(){delete fParticleGun;}

    virtual void GeneratePrimaries(G4Event* anEvent)
    {
      fParticleGun->GeneratePrimaryVertex(anEvent);
    }

  private:
    G4ParticleGun*  fParticleGun; // pointer a to G4 gun class
};
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#include "G4RunManager.hh"
#include "QGSP_BIC_EMY.hh"
#include "G4UIterminal.hh"
#include "G4UItcsh.hh"

int main(){
  G4RunManager * runManager = new G4RunManager;
  runManager->SetUserInitialization(new SimpleDetectorConstruction());
  runManager->SetUserInitialization(new QGSP_BIC_EMY);
  runManager->SetUserAction(new SimplePrimaryGeneratorAction());
  runManager->Initialize();

  G4UIterminal* settion = new G4UIterminal(new G4UItcsh);
  settion->SessionStart();
  delete settion;
  
  delete runManager;
  return 0;
}
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