//-----------------------------------------------------------
// File and Version Information:
// $Id$
//
// Description:
//      TPC digitization: avalanche 
//      Models a cloud of charge produced by a gas amplification
//      process in the TPC-GEMs
//
// Environment:
//      Software developed for the PANDA Detector at FAIR.
//
// Author List:
//      Sebastian Neubert    TUM            (original author)
//      Cristoforo Simonetto TUM
//
//
//-----------------------------------------------------------

#ifndef TPCAVALANCHE_HH
#define TPCAVALANCHE_HH

// Base Class Headers ----------------
#include <TObject.h>

// Collaborating Class Headers -------
#include <ostream>

// Collaborating Class Declarations --
class TpcDriftedElectron;

class TpcAvalanche : public TObject {
public:

  // Constructors/Destructors ---------
  TpcAvalanche();
  TpcAvalanche(const double X, 
	       const double Y,
	       const double T,
	       const double Amp,
	       TpcDriftedElectron* tpcDElectronp);

  ~TpcAvalanche(){;}

  // Operators
  friend bool operator== (const TpcAvalanche&, const TpcAvalanche&);
  friend bool operator<  (const TpcAvalanche& lhs,const TpcAvalanche& rhs)
  {return lhs.ft < rhs.ft;}

  friend std::ostream& operator<< (std::ostream& s, const TpcAvalanche& me);


  // Accessors -----------------------
  double x() const {return fx;}
  double y() const {return fy;}
  double t() const {return ft;}
  double amp() const {return famp;}
  unsigned int mcTrackId() const {return fmcTrackId;}
  unsigned int mcSecId() const {return fmcSecId;}
  unsigned int mcHitId() const {return fmcHitId;}
  unsigned int index() const {return findex;}

  
  // Modifiers -----------------------
  void addAmp(double a){famp+=a;}
  void setIndex(unsigned int caindex){findex=caindex;}
private:

  // Private Data Members ------------
  double fx;
  double fy;
  double ft;
  double famp;
  //duplication of information, but needed for easy acces when removing pointer
  unsigned int fmcTrackId;      // internal mc id if GEANT is not used
  unsigned int fmcSecId;   // 0 if primary track, else >0
  unsigned int fmcHitId;
  unsigned int fDriftedElectronId; // id of primary cluster in TClonesArray
  unsigned int findex;

  
  // Private Methods -----------------

public:
  ClassDef(TpcAvalanche,3)

};

#endif

//--------------------------------------------------------------
// $Log$
//--------------------------------------------------------------