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#ifndef G4Fancy3DNucleus_h
#define G4Fancy3DNucleus_h 1

// ------------------------------------------------------------
//      GEANT 4 class header file
//
//      ---------------- G4Fancy3DNucleus ----------------
//             by Gunter Folger, May 1998.
//       class for a 3D nucleus, arranging nucleons in space and momentum.
// ------------------------------------------------------------

#include "globals.hh"
#include "G4DynamicParticle.hh"
#include "G4V3DNucleus.hh"
#include "G4Nucleon.hh"
#include "G4VNuclearDensity.hh"
#include "G4FermiMomentum.hh"
#include <vector>

class G4Fancy3DNucleus : public G4V3DNucleus
{

  public:
      G4Fancy3DNucleus();
      ~G4Fancy3DNucleus();

  private:
      G4Fancy3DNucleus(const G4Fancy3DNucleus &right);
      const G4Fancy3DNucleus & operator=(const G4Fancy3DNucleus &right);
      int operator==(const G4Fancy3DNucleus &right) const;
      int operator!=(const G4Fancy3DNucleus &right) const;
      

//  Implementation 
      void ChooseNucleons();
      void ChoosePositions();
      void ChooseFermiMomenta();
      G4double BindingEnergy();
      G4bool ReduceSum(G4ThreeVector * momentum, G4double *);

  public:
      void Init(G4double theA, G4double theZ);
      G4bool StartLoop();
      G4Nucleon * GetNextNucleon();
      const std::vector<G4Nucleon *> & GetNucleons();
      G4int GetMassNumber();
      G4double GetMass();
      G4int GetCharge();
      G4double GetNuclearRadius();
      G4double GetNuclearRadius(const G4double maxRelativeDensity);
      G4double GetOuterRadius();
      G4double CoulombBarrier();
      void DoLorentzBoost(const G4LorentzVector & theBoost);
      void DoLorentzBoost(const G4ThreeVector & theBeta);
      void DoLorentzContraction(const G4LorentzVector & theBoost);
      void DoLorentzContraction(const G4ThreeVector & theBeta);
      void CenterNucleons();
      void DoTranslation(const G4ThreeVector & theShift);
      const G4VNuclearDensity * GetNuclearDensity() const;
      void SortNucleonsInZ();
      
  private:
  
  G4int myA;
  G4int myZ;
  G4Nucleon * theNucleons;
  std::vector<G4Nucleon *> theRWNucleons;  // should not have two...
  struct DeleteNucleon{ void operator()(G4Nucleon *aN){delete aN;} };
  G4int currentNucleon;
  G4VNuclearDensity * theDensity;
  G4FermiMomentum theFermi;  
  const G4double nucleondistance;
};

inline G4int G4Fancy3DNucleus::GetCharge()
{
	return myZ;
}

inline G4int G4Fancy3DNucleus::GetMassNumber()
{
	return myA;
}
#endif


