// $Id$
// Category: basic
//
// Class AliMpConstants
// --------------------
// Class for globally used constants definition.
//
// Authors: David Guez, Ivana Hrivnacova; IPN Orsay

#ifndef ALI_MP_CONSTANTS_H
#define ALI_MP_CONSTANTS_H

#include <TObject.h>

class TVector2;

class AliMpConstants : public TObject
{
 public:
  AliMpConstants();
  virtual ~AliMpConstants();

  // static compare methods
  static Bool_t  IsEqual(Double_t length1, Double_t length2);
  static Bool_t  IsEqual(const TVector2& v1, const TVector2& v2);

  // static get methods
  static Double_t LengthTolerance();
  static Double_t LengthStep();
  static Int_t    StartPadIndex();

 private:
  // unused derived functions
  virtual Bool_t  IsEqual(const TObject*) const { return true; }
 
  // static data members
  static const Double_t  fgkLengthTolerance;// the length precision for tests
  static const Double_t  fgkLengthStep;     // the step in length used to move from
                                            // a geometric border inside (pad, motif)
  static const Int_t     fgkStartPadIndex;  // global pad indices start value

  ClassDef(AliMpConstants,1) //Class for globally used constants definition
};

// inline functions

inline Double_t AliMpConstants::LengthTolerance() {return fgkLengthTolerance;}
inline Double_t AliMpConstants::LengthStep()      {return fgkLengthStep;}
inline Int_t    AliMpConstants::StartPadIndex()   {return fgkStartPadIndex;}

#endif //ALI_MP_CONSTANTS_H