#ifndef STNTUPLE_TCprCluster
#define STNTUPLE_TCprCluster

#ifdef __GNUG__
#pragma interface
#endif

#include <cmath>
#include "TObject.h"
#include "TMath.h"

class TStnDataBlock;
class AbsEvent;
class CprCluster;

class TCprCluster : public TObject {

  friend Int_t StntupleInitClusterBlock(TStnDataBlock* block, 
					AbsEvent*      event, 
					int            mode);
protected:
//------------------------------------------------------------------------------
//  data members
//------------------------------------------------------------------------------
  Int_t     fCode;
  Float_t   fCharge;
  Float_t   fX;
  Float_t   fSigmaX;

  const CprCluster* fCprp; //! for internal use, finding links

//------------------------------------------------------------------------------
//  functions
//------------------------------------------------------------------------------
public:
				// ****** constructors and destructor
  TCprCluster();
  virtual ~TCprCluster();
				// ****** initialization methods - the same as
				// constructors, but don't allocate memory

				// ****** accessors

  Int_t      Side     () const { return (fCode      ) &  0x1; }
  Int_t      Wedge    () const { return (fCode >>  1) & 0x1f; }
  Int_t      NWires   () const { return (fCode >>  6) & 0x3f; }
  Int_t      FirstWire() const { return (fCode >> 12) & 0x3f; }
  Float_t    Charge   () const { return fCharge; }
  Float_t    X        () const { return fX     ; }
  Float_t    SigmaX   () const { return fSigmaX; }

				// global CDF phi
  Float_t    Phi      () const { 
    float phi = (Wedge()+0.5)*(TMath::Pi()/12.0);
    return phi + TMath::ATan2(fX,168.29);
  }

  const CprCluster* GetCprCluster() { return fCprp; }

  void SetCode  (Int_t i)   { fCode = i; }
  void SetCharge(Float_t x) { fCharge = x; }
  void SetX     (Float_t x) { fX = x; }
  void SetSigmaX(Float_t x) { fSigmaX = x; }

  void SetCprCluster(const CprCluster* c) {fCprp = c;}

					// ****** overloaded methods of TObject

  void Print(const char* Option="") const;

  ClassDef(TCprCluster,1)
};

#endif