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//
// G4GeometryCell
//
// Class description:
//
// This class is used by scoring and importance sampling.
// It serves to address a "cell". A "cell" is somewhat related to a
// touchable. It is identified by a reference to a G4VPhysicalVolume
// and a number (replica number). Only simple replicas are supported.

// Author: Michael Dressel (CERN), 2002
// ----------------------------------------------------------------------
#ifndef G4GEOMETRYCELL_HH
#define G4GEOMETRYCELL_HH 1

#include "globals.hh"

class G4VPhysicalVolume;

class G4GeometryCell
{
  public:  // with description

    G4GeometryCell(const G4VPhysicalVolume& aVolume, G4int RepNum);
      // initialise volume and replica number

    G4GeometryCell(const G4GeometryCell& rhs);
    G4GeometryCell& operator=(const G4GeometryCell& rhs);
      // copy constructor and assignment operator

    ~G4GeometryCell();
      // simple destruction
  
    const G4VPhysicalVolume& GetPhysicalVolume() const;
      // return the physical volume of the cell

    G4int GetReplicaNumber() const;
      // returns the replica number of the cell
 
  private:

    const G4VPhysicalVolume* fVPhysicalVolume = nullptr;
      // pointer to the G4VPhysicalVolume of the "cell"; treated as identifyer 

    G4int fRepNum = 0;
      // replica number of the "cell"
};

G4bool operator==(const G4GeometryCell& k1, const G4GeometryCell& k2);
G4bool operator!=(const G4GeometryCell& k1, const G4GeometryCell& k2);

#endif