#ifndef _ENERGYDATA_HH_
#define _ENERGYDATA_HH_

#ifdef USE_CDFEDM2
//////////////////////////////////////////////////////////////////////////
//
// Component: EnergyData.hh
// Component: EnergyData.hh
// Purpose: This class contains the information necessary 
//          to make physics towers.  Energy data can be made from
//          input sources like SourceHEPG or SourceCalData.
//          
// Created: 18/06/99  Pierre Savard
// History: Aug 14, 2002 Jean-Francois Arguin: Add eta member
//                                             for allowing creation of PhysicsTower
//                                             from CdfTracks
//          Nov 24, 2002 Matthias Toennesmann: Replace eta member by 4-vector.
//
//////////////////////////////////////////////////////////////////////////

#include <iosfwd>
#include <iostream>
#include <cstddef>
#include "CalorGeometry/CalConstants.hh"
#include "CLHEP/Vector/LorentzVector.h"

// namespace calor {
  
  class EnergyData {
  public:
    
    //
    // Memory management
    //
        
    // Default constructor, also full initialization constructor.

    EnergyData(float emPhi = 0.0, float hadPhi = 0.0, 
	       float emEnergy = 0.0, float hadEnergy = 0.0, 
	       size_t iEta = 0, size_t iPhi = 0,
	       HepLorentzVector fourMomentum = HepLorentzVector());
    
    // Default copy constructor and assignment operator do the right thing.
    
    // default Destructor
    
    //
    // Testing
    //
    
    // Equality test

    bool operator==(const EnergyData& rhs) const;
    
    //
    // Manipulation and access
    //

    // Access methods 

    float emEnergy() const;
    float hadEnergy() const;

    float emPhi() const;
    float hadPhi() const;


    size_t iEta() const;
    size_t iPhi() const;

    HepLorentzVector fourMomentum() const;
    
    //
    // Printing
    //

    friend std::ostream& operator<<(std::ostream& os, const EnergyData& t);  
    
  private:

    float      _emPhi;	          // EM phi center-of-gravity		
    float      _hadPhi; 	  // HAD phi center-of-gravity	 
    float      _emEnergy;	 
    float      _hadEnergy; 	

    size_t _iEta;
    size_t _iPhi;
    
    HepLorentzVector _fourMomentum;
    
  };

  // Initialization constructor  
  
  inline EnergyData::EnergyData(float emPhi, float hadPhi, 
		  float emEnergy, float hadEnergy, size_t iEta, 
                  size_t iPhi, HepLorentzVector fourMomentum):
		 _emPhi(emPhi), _hadPhi(hadPhi), 
		 _emEnergy(emEnergy), _hadEnergy(hadEnergy), 
                 _iEta(iEta), _iPhi(iPhi), _fourMomentum(fourMomentum){ }

  inline float EnergyData::emEnergy() const {return _emEnergy;}
  inline float EnergyData::hadEnergy() const {return _hadEnergy;}
  inline float EnergyData::emPhi() const {return _emPhi;}
  inline float EnergyData::hadPhi() const {return _hadPhi;}
  inline size_t EnergyData::iEta() const {return _iEta;}
  inline size_t EnergyData::iPhi() const {return _iPhi;}
  inline HepLorentzVector EnergyData::fourMomentum() const {return _fourMomentum;}
    
// } // namespace calor

#endif  // USE_CDFEDM2
#endif // _ENERGYDATA_HH_