StPicoBbcHit.h

#ifndef StPicoBbcHit_h
#define StPicoBbcHit_h

// ROOT headers
#include "TObject.h"

//
// \class StPicoBbcHit
// \author Mike Lisa
// \date 6 March 2018
// \brief Holds signals for ***phototubes*** in INNER STAR
//   Beam-beam counter (BBC)

/*************************************************
 * Hit Class for the STAR Beam-Beam Counter (BBC)
 * There is one "hit" for each (good) *phototube* in the detector
 *   that has a nonzero ADC value
 * 
 * Total size of this object is 6 bytes
 * This object contains only
 *  1) the id of the PMT, compacted into a Short_t
 *  2) the QT information (ADC, TDC, TAC, hasTac flag, status flag)
 *     compacted into 32 bits (Int_t)
 * 
 *
 * The BBC is a painful detector, because it has 16 phototubes
 *  distributed to 18 tiles, per side.  This class stores the
 *  data by phototube (as it must).
 *
 * To access GEOMETRICAL information (e.g. location of a tile, etc)
 *  use the StBbcGeom class.  All you have to do is send StBbcGeom
 *  the StPicoBbcHit::id(), and you'll get all you want.
 *
 * - Mike Lisa March 2018
 ************************************************/

//_________________
class StPicoBbcHit : public TObject {

 public:

  StPicoBbcHit();
  StPicoBbcHit(Int_t PMTnumber, Int_t EW, Int_t ADC, Int_t TAC,
               Int_t TDC, Bool_t hasTAC, Bool_t statusIsGood);
  StPicoBbcHit(const StPicoBbcHit &hit);
  virtual ~StPicoBbcHit();
  // Print BBC hit information
  virtual void Print(const Char_t *option = "") const;

  Bool_t hasTac() const              { return (mQTdata >> 29) & 0x1; }
  Int_t  adc() const                 { return mQTdata & 0x0FFF; }
  Int_t  tac() const                 { return (mQTdata >> 12) & 0x0FFF; }
  Int_t  tdc() const                 { return (mQTdata >> 24) & 0x001F; }
  Short_t side() const               { return mId < 0 ? -1 : +1;}

  Short_t id() const                 { return mId; }
  Int_t qtData() const               { return mQTdata; }
  Bool_t isGood() const              { return (mQTdata >> 30) & 0x1; }


  void setQTdata(Int_t packedData)   { mQTdata=packedData; }
  void setId(Short_t id)             { mId = id; }

 protected:

  Short_t mId;

  Int_t mQTdata;

  ClassDef(StPicoBbcHit, 1)
};

#endif