// -------------------------------------------------------------------------
// -----                       FairStack header file                    -----
// -----           Created 10/08/04  by D. Bertini / V. Friese         -----
// -------------------------------------------------------------------------


/** FairStack.h
 *@author D.Bertini <d.bertini@gsi.de>
 *@author V.Friese <v.friese@gsi.de>
 **
 ** Version 14/06/07 by V. Friese
 **
 ** This class handles the particle stack for the transport simulation.
 ** For the stack FILO functunality, it uses the STL stack. To store
 ** the tracks during transport, a TParticle arry is used.
 ** At the end of the event, tracks satisfying the filter criteria
 ** are copied to a FairMCTrack array, which is stored in the output.
 **
 ** The filtering criteria for the output tracks are:
 ** - primary tracks are stored in any case.
 ** - secondary tracks are stored if they have a minimal number of
 **   points (sum of all detectors) and a minimal energy, or are the
 **
 ** The storage of secondaries can be switched off.
 ** The storage of all mothers can be switched off.
 ** By default, the minimal number of points is 1 and the energy cut is 0.
 **/


#ifndef FAIRSTACK_H
#define FAIRSTACK_H


#include "FairGenericStack.h"

#include "FairDetectorList.h"

class FairStack : public FairGenericStack
{

  public:

    /** Default constructor
     *param size  Estimated track number
     **/
    FairStack(Int_t size = 100);


    /** Destructor  **/
    virtual ~FairStack();

    /** Fill the MCTrack output array, applying filter criteria **/
    virtual void FillTrackArray();

    /** Update the track index in the MCTracks and MCPoints **/
    virtual void UpdateTrackIndex(TRefArray* detArray);

    /** Register the MCTrack array to the Root Manager  **/
    virtual void Register();

    /** Output to screen
     **@param iVerbose: 0=events summary, 1=track info
     **/
    virtual void Print(Int_t iVerbose=0) const;

    /** Increment number of points for the current track in a given detector
     *@param iDet  Detector unique identifier
     **/
    void AddPoint(DetectorId iDet);


    /** Increment number of points for an arbitrary track in a given detector
     *@param iDet    Detector unique identifier
     *@param iTrack  Track number
     **/
    void AddPoint(DetectorId iDet, Int_t iTrack);


  private:

    FairStack(const FairStack&);
    FairStack& operator=(const FairStack&);

    ClassDef(FairStack,1)


};






#endif