#ifndef mgDetectorConstruction_h
#define mgDetectorConstruction_h 1

#include "globals.hh"
#include "G4VUserDetectorConstruction.hh"
#include "tls.hh"

class G4LogicalVolume;
class G4VPhysicalVolume;
class G4Material;

class mgDetectorConstruction : public G4VUserDetectorConstruction
{
  public: 
    mgDetectorConstruction();
    virtual ~mgDetectorConstruction();

  public:
    virtual G4VPhysicalVolume* Construct();
    
  //Set Methods
    void SetSphereMaterial(G4String );
    void SetCheckOverlaps(G4bool );

    G4LogicalVolume* GetShellVolume() const { return fLogicShell; }
    G4Material* GetSphereMaterial() const { return fSphereMaterial; }

  private:
  //methods
    void DefineMaterials();
    G4VPhysicalVolume* DefineVolumes();

  //data members
  G4LogicalVolume* fLogicSphere; //pointer to Logical Orb
  G4LogicalVolume* fLogicShell;  //pointer to the logical boundary shell

  G4Material* fSphereMaterial; //pointer to sphere material
  G4Material* fShellMaterial;  //pointer to shell material; probably won't be used.

  G4bool fCheckOverlaps; //Option to activate shecking of volume overlaps.
};

#endif