#ifndef STNTUPLE_TStnSiHit
#define STNTUPLE_TStnSiHit
//-----------------------------------------------------------------------------
//  This definition of the STNTUPLE silicon hit is a subset of the
//  information contained in TrackingObjects/SiData/SiHit.hh.
//  These objects are contained in a TClonesArray in the
//  TSvxDataBlock.  Since there are many silicon hits in an event, you
//  might not want to make this block during a normal job.
//
//  Author:    Aaron Dominguez (CDF/LBNL)
//  Date:      Apr 17 2001
//-----------------------------------------------------------------------------
#include "TObject.h"
#include "TVector3.h"
#include "Stntuple/obj/TStnSiDigiCode.hh"

class SiHit;

class TStnSiHit: public TObject {

public:
//------------------------------------------------------------------------------
//  data members
//------------------------------------------------------------------------------
  // For the TVector3 points, the value of the coordinate most closely
  // parallel to the strip direction is set to the center of the
  // half-ladder (local origin).
  // For hits attached to tracks, the global position is corrected for wafer
  // level alignments based on the 3D track intersection with the wafer.
  TVector3 fGlobal;     // Position of hit in global CDF coordinates

  Float_t fStripNum;    // Position in strip units
  Float_t fLocal;       // Position in local coordinates

  Float_t fError;       // Error of hit in local coordinates (?)

  Float_t fQtotal;      // Total amount of charge in cluster in
                        // pedestal-subtracted-ADC-counts
  Float_t fNoise;       // Total noise in cluster from strips
  Int_t fNstrip;        // Number of strips in cluster

  Char_t fStatus;       // Bits 0: Has bad strips; 1: Neighbor(s) are bad strips

  TStnSiDigiCode fDigiCode; // The (repacked) SiDigiCode of the detector element

  SiHit* fCdfSiHit;    //! Pointer to parent SiHit for internal use

//------------------------------------------------------------------------------
//  functions
//------------------------------------------------------------------------------
					// ****** constructors and destructor
  TStnSiHit();
  virtual ~TStnSiHit();
					// ****** accessors
  TVector3* Global() {return &fGlobal;}
  Float_t   StripNum() const {return fStripNum;}
  Float_t   Local() const {return fLocal;}
  Float_t   LocalError() const {return fError;}
  Float_t   Qtot()   const {return fQtotal;}
  Float_t   Noise()  const {return fNoise;}
  Int_t     Nstrip() const {return fNstrip;}
  TStnSiDigiCode* DigiCode() {return &fDigiCode;}
  Int_t     NObsp() const;    // Number of particles that produced hit
  Int_t     Obsp(int i) const; // OBSP id of i-th particle (counting from 0)
  Bool_t    Good()  const {return (fStatus & 0x1)==0;}
  Bool_t    HasBadNeighbor() const {return ((fStatus>>1) & 0x1)==1;}
                                        // ****** modifiers
  void      SetObsp(int i, int id);

  void Print(Option_t* option = "") const;

  SiHit* GetCdfSiHit()    {return fCdfSiHit;}

  ClassDef(TStnSiHit,5)
};

#endif