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// $Id$
//
// Hadronic Process: Nuclear De-excitations
// by V. Lara


#ifndef G4VStatMFMacroCluster_h
#define G4VStatMFMacroCluster_h 1

#include "G4StatMFParameters.hh"
#include "G4HadronicException.hh"

class G4VStatMFMacroCluster {

public:
    // Constructor
    G4VStatMFMacroCluster(const G4int Size) : 
	theA(Size),
	_InvLevelDensity(0.0),
	_Entropy(0.0),
	theZARatio(0.0),
	_MeanMultiplicity(0.0),
	_Energy(0.0)
	{
	    if (theA <= 0) throw G4HadronicException(__FILE__, __LINE__, 
		"G4VStatMFMacroCluster::Constructor: Cluster's size must be >= 1");
	    _InvLevelDensity = CalcInvLevelDensity();
	}


    // Destructor
    virtual ~G4VStatMFMacroCluster() {};


private:

    // Default constructor
    G4VStatMFMacroCluster() {};

    // Copy constructor
    G4VStatMFMacroCluster(const G4VStatMFMacroCluster & right);

    // operators
    G4VStatMFMacroCluster & operator=(const G4VStatMFMacroCluster & right);

public:
    G4bool operator==(const G4VStatMFMacroCluster & right) const;
    G4bool operator!=(const G4VStatMFMacroCluster & right) const;

private:
    G4double CalcInvLevelDensity(void);
	
public:

    virtual G4double CalcMeanMultiplicity(const G4double FreeVol, const G4double mu, 
					  const G4double nu, const G4double T) = 0;
						
    virtual G4double CalcZARatio(const G4double nu) = 0;
	
    G4double GetMeanMultiplicity(void) const { return _MeanMultiplicity; }

    virtual G4double CalcEnergy(const G4double T) = 0;

    virtual G4double CalcEntropy(const G4double T, const G4double FreeVol) = 0;

protected:
    // Number of nucleons in the cluster
    G4int theA;
	
    // Inverse level density
    G4double _InvLevelDensity;
	
    // Entropy
    G4double _Entropy;
	
    // Z/A ratio
    G4double theZARatio;
	
    // Mean Multiplicity
    G4double _MeanMultiplicity;
	
    // Energy
    G4double _Energy;

// *************************************************************************
public:
	
    G4double GetInvLevelDensity(void) const
	{ return _InvLevelDensity; }
	 
    void SetZARatio(const G4double value)
	{ theZARatio = value; }
	
    G4double GetZARatio(void) const
	{ return theZARatio; }
	
	
    void SetSize(const G4double value)
	{ 
	    if (value <= 0.0) throw G4HadronicException(__FILE__, __LINE__, "G4VStatMFMacroCluster::SetSize: Cluster's size must be >= 1");
	    theA = G4int(value); 
	    _InvLevelDensity = CalcInvLevelDensity();
	}
	
    G4double GetSize(void) const
	{ return theA; }





};

#endif
