#ifndef ALIFMDSDIGIT_H
#define ALIFMDSDIGIT_H
/** @file    AliFMDSDigit.h
    @author  Christian Holm Christensen <cholm@nbi.dk>
    @date    Mon Mar 27 12:37:41 2006
    @brief   Digits for the FMD 
*/
//___________________________________________________________________
//
//  Digits classes for the FMD
//  AliFMDBaseDigit - base class 
//  AliFMDDigit     - Normal (smeared) digit             
//  AliFMDSDigit    - Summable (non-smeared) digit             
//
#ifndef ALIFMDBASEDIGIT_H
# include <AliFMDBaseDigit.h>
#endif
//____________________________________________________________________
/** @class AliFMDSDigit AliFMDDigit.h <FMD/AliFMDDigit.h>
    @brief class for summable digits 
    @ingroup FMD_base
 */
class AliFMDSDigit : public AliFMDBaseDigit
{
public:
  /** CTOR */
  AliFMDSDigit();
  /** Constrctor 
      @param detector Detector 
      @param ring     Ring
      @param sector   Sector
      @param strip    Strip 
      @param edep     Energy deposited 
      @param count    ADC (first sample)
      @param count2   ADC (second sample, or -1 if not used)
      @param count3   ADC (third sample, or -1 if not used) */
  AliFMDSDigit(UShort_t detector, 
	       Char_t   ring='\0', 
	       UShort_t sector=0, 
	       UShort_t strip=0, 
	       Float_t  edep=0,
	       UShort_t count=0, 
	       Short_t  count2=-1, 
	       Short_t  count3=-1,
	       Short_t  count4=-1);
  /** DTOR */
  virtual ~AliFMDSDigit() {}
  /** @return ADC count (first sample) */
  UShort_t Count1()                const { return fCount1;   }
  /** @return ADC count (second sample, or -1 if not used) */
  Short_t  Count2()                const { return fCount2;   }
  /** @return ADC count (third sample, or -1 if not used) */
  Short_t  Count3()                const { return fCount3;   }
  /** @return ADC count (third sample, or -1 if not used) */
  Short_t  Count4()                const { return fCount4;   }
  /** @return Canonical ADC counts */
  UShort_t Counts()                const;
  /** @return Energy deposited */
  Float_t  Edep()                  const { return fEdep;     }
  /** Print info 
      @param opt Not used */
  void     Print(Option_t* opt="") const;
protected:
  Float_t  fEdep;       // Energy deposited 
  UShort_t fCount1;     // Digital signal 
  Short_t  fCount2;     // Digital signal (-1 if not used)
  Short_t  fCount3;     // Digital signal (-1 if not used)
  Short_t  fCount4;     // Digital signal (-1 if not used)
  ClassDef(AliFMDSDigit,2)     // Summable FMD digit
};
  
inline UShort_t 
AliFMDSDigit::Counts() const 
{
  if (fCount4 >= 0) return fCount3;
  if (fCount3 >= 0) return fCount2;
  if (fCount2 >= 0) return fCount2;
  return fCount1;
}


#endif
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