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#ifndef FastSimulation_Event_FSimTrack_H
#define FastSimulation_Event_FSimTrack_H

// HepPDT Headers
#include "SimGeneral/HepPDTRecord/interface/ParticleDataTable.h"

// CMSSW Headers
#include "SimDataFormats/Track/interface/SimTrack.h"

// FAMOS headers
#include "FastSimulation/Particle/interface/RawParticle.h"

#include <vector>

class FSimVertex;
class FBaseSimEvent;

namespace HepMC {
  class GenParticle;
  class GenVertex;
}

class FSimTrack : public SimTrack {

 public:
  FSimTrack();
  
  FSimTrack(const RawParticle* p, int iv, int ig, int id, FBaseSimEvent* mom, double dt=-1.);
  
  virtual ~FSimTrack();

  inline const HepPDT::ParticleData* particleInfo() const {
    return info_;
  }
  
  inline float charge() const { 
    return particleInfo()->charge();
  }
  

  inline const FSimVertex& vertex() const;

  inline const FSimVertex& endVertex() const;

  inline const FSimTrack& mother() const;

  inline const FSimTrack& daughter(int i) const;

  inline int nDaughters() const;

  inline const std::vector<int>& daughters() const;

  inline bool  noEndVertex() const;

  bool notYetToEndVertex(const XYZTLorentzVector& pos) const;

  inline bool  noMother() const; 

  inline bool  noDaughter() const;

  inline const HepMC::GenParticle* genParticle() const;
   
  inline int id() const { return id_; }

  inline int onLayer1() const { return layer1; }

  inline int onLayer2() const { return layer2; }

  inline int onEcal() const { return ecal; }

  inline int onHcal() const { return hcal; }

  inline int onVFcal() const { return vfcal; }

  inline bool propagated() const { return prop; }

  inline const RawParticle& layer1Entrance() const { return Layer1_Entrance; }

  inline const RawParticle& layer2Entrance() const { return Layer2_Entrance; }

  inline const RawParticle& ecalEntrance() const { return ECAL_Entrance; }

  inline const RawParticle& hcalEntrance() const { return HCAL_Entrance; }

  inline const RawParticle& vfcalEntrance() const { return VFCAL_Entrance; }

  inline void setEndVertex(int endv) { endv_ = endv; } 

  void setPropagate();

  void setLayer1(const RawParticle& pp, int success);

  void setLayer2(const RawParticle& pp, int success);

  void setEcal(const RawParticle& pp,int success);

  void setHcal(const RawParticle& pp, int success);

  void setVFcal(const RawParticle& pp, int success);

  //  void addRecHit(const FamosBasicRecHit* hit, unsigned layer);

  //  void addSimHit(const RawParticle& pp, unsigned layer);

  inline void addDaughter(int i) { daugh_.push_back(i); }

  inline void setClosestDaughterId(int id) { closestDaughterId_ = id; }

  inline int closestDaughterId() const { return closestDaughterId_; }

  const XYZTLorentzVector& momentum() const { return momentum_; }

  inline void setMomentum(const math::XYZTLorentzVector& newMomentum) {momentum_ = newMomentum; }

  inline const SimTrack& simTrack() const { return *this; }

  inline double decayTime() const { return properDecayTime; }

 private:

  //  HepMC::GenParticle* me_;

  FBaseSimEvent* mom_;
  //  int embd_;   // The index in the SimTrack vector
  int id_; // The index in the FSimTrackVector
  
  int endv_; // The index of the end vertex in FSimVertex

  int layer1;// 1 if the particle was propagated to preshower layer1
  int layer2;// 1 if the particle was propagated to preshower layer2
  int ecal;  // 1 if the particle was propagated to ECAL/HCAL barrel
  int hcal;  // 2 if the particle was propagated to ECAL/HCAL endcap 
  int vfcal; // 1 if the particle was propagated to VFCAL 

  bool prop;     // true if the propagation to the calorimeters was done

  RawParticle Layer1_Entrance; // the particle at preshower Layer1
  RawParticle Layer2_Entrance; // the particle at preshower Layer2
  RawParticle ECAL_Entrance;   // the particle at ECAL entrance
  RawParticle HCAL_Entrance;   // the particle at HCAL entrance
  RawParticle VFCAL_Entrance;  // the particle at VFCAL entrance

  std::vector<int> daugh_; // The indices of the daughters in FSimTrack
  int closestDaughterId_; // The index of the closest daughter id

  const HepPDT::ParticleData* info_; // The PDG info

  XYZTLorentzVector momentum_;

  double properDecayTime; // The proper decay time  (default is -1)

};

#include<iosfwd>
std::ostream& operator <<(std::ostream& o , const FSimTrack& t);

#include "FastSimulation/Event/interface/FSimTrack.icc"



#endif // FSimTrack_H