#ifndef CBML1TRDTRACKLET4_H
#define CBML1TRDTRACKLET4_H 1

#include <TObject.h>
#include <vector>
using namespace std;

class CbmL1TrdTracklet4 : public TObject
{

 public:

  /** Default constructor **/
  CbmL1TrdTracklet4();

  //CbmL1TrdTracklet(Int_t indLeft, Int_t indRight) {fIndLeft=indLeft; fIndRight=indRight;};

  /** Destructor **/
  virtual ~CbmL1TrdTracklet4();

  //get a given hit hit index
  inline  Int_t GetInd1()    { return fInd1; };
  inline  Int_t GetInd2()    { return fInd2; };
  inline  Int_t GetInd3()    { return fInd3; };
  inline  Int_t GetInd4()    { return fInd4; };

  //gets the appropriate coordinate values
  inline  Double_t GetCoord1()      { return fCoord1;   };
  inline  Double_t GetCoord2()      { return fCoord2;   };
  inline  Double_t GetCoord3()      { return fCoord3;   };
  inline  Double_t GetCoord4()      { return fCoord4;   };

  //value of the tracklet used in tagging
  inline  Int_t GetVal()     { return fVal;     }; 
  
  //says if this tracklet has any left-side neighbours
  inline  Int_t GetIsAlone() { return fIsAlone; }; 

  
  inline  Int_t GetIndex()   { return fIndex;   };


  //sets the index of a given hit
  inline  void SetInd1(Int_t ind1)      { fInd1 = ind1; };
  inline  void SetInd2(Int_t ind2)      { fInd2 = ind2; };
  inline  void SetInd3(Int_t ind3)      { fInd3 = ind3; };
  inline  void SetInd4(Int_t ind4)      { fInd4 = ind4; };

  //sets the appropriate coordinate values
  //Coord1 usually = Y
  inline  void SetCoord1(Double_t a)      { fCoord1 = a;   };
  //Coord2 usually = X
  inline  void SetCoord2(Double_t a)      { fCoord2 = a;   };
  //Coord3 usually = Y
  inline  void SetCoord3(Double_t a)      { fCoord3 = a;   };
  //Coord4 usually = X
  inline  void SetCoord4(Double_t a)      { fCoord4 = a;   };

  //set value of the tracklet used in tagging
  inline  void SetVal(Int_t segVal)        { fVal = segVal;      }; 

  //sets flag if this tracklet has any left-side neighbours
  inline  void SetIsAlone(Bool_t isAlone)  { fIsAlone = isAlone; }; 

  inline  void SetIndex(Int_t index)       { fIndex = index;     }; 

  
  //get extrapolated value of the precise coordinate of the 1st layer
  inline Double_t GetExt1() { return fExt1; };
  //get extrapolated value of the precise coordinate of the 2nd layer
  inline Double_t GetExt2() { return fExt2; };

  
  //set extrapolated value of the precise coordinate of the 1st layer
  inline void SetExt1(Double_t a) { fExt1 = a; };
  //set extrapolated value of the precise coordinate of the 2nd layer
  inline void SetExt2(Double_t a) { fExt2 = a; };

  vector<Int_t> vAccostTracklet; //position of next tracklets in vector 
  vector<Int_t> vAccostLeft;     //position of next tracklets in vector 
  vector<Int_t> vAccostRight;    //position of next tracklets in vector 

  //compares two first (or two second) coordinates of two tracklets
  inline static Bool_t compare1(CbmL1TrdTracklet4 *tr1, 
				CbmL1TrdTracklet4 *tr2) {
    return (tr1->GetCoord1() < tr2->GetCoord1()); 
  };
  
  inline static Bool_t compare2(CbmL1TrdTracklet4 *tr1, 
				CbmL1TrdTracklet4 *tr2) {
    return (tr1->GetCoord2() < tr2->GetCoord2()); 
  };
  
  inline static Bool_t Compare3S(CbmL1TrdTracklet4 *tr1, 
				 CbmL1TrdTracklet4 *tr2) {
    return (tr1->GetVal() > tr2->GetVal()); 
  };

  //to store 4 Z value 
  Double_t M[4];

 private:
  


  //indexes of the four consistuent hits
  Int_t fInd1;
  Int_t fInd2;
  Int_t fInd3;
  Int_t fInd4;

  //tracklet tag value
  Int_t fVal;

  
  Int_t fY;

  //says if a tracklet has any left-sede neighbours
  Bool_t fIsAlone;
  Int_t fIndex;

  Double_t fExt1; //coordinates extrapolated to the next station (X or Y)
  Double_t fExt2;


  Double_t fCoord1; //more precisely determined coordinate from the leftmost hit
  Double_t fCoord2; //more precisely determined coordinate from the middle-left hit

  Double_t fCoord3; //more precisely determined coordinate from the middle-right hit
  Double_t fCoord4; //more precisely determined coordinate from the rightmost hit


  ClassDef(CbmL1TrdTracklet4,1);

};


#endif