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// This example is provided by the Geant4-DNA collaboration
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#ifndef CHEM5_PrimaryKiller_h
#define CHEM5_PrimaryKiller_h 1

#include <G4VPrimitiveScorer.hh>
#include <G4UImessenger.hh>
#include <G4THitsMap.hh>

class G4UIcmdWithADoubleAndUnit;

/** \file PrimaryKiller.hh*/

// Description:
//   Kill the primary particle:
//   - either after a given energy loss
//   - or after the primary particle has reached a given energy

class PrimaryKiller : public G4VPrimitiveScorer,
                      public G4UImessenger
{
private:
  double fELoss; // cumulated energy loss by the primary
  
  double fELossRange_Min; // fELoss from which the primary is killed
  double fELossRange_Max; // fELoss from which the event is aborted
  double fKineticE_Min; // kinetic energy below which the primary is killed

  G4UIcmdWithADoubleAndUnit* fpELossUI;
  G4UIcmdWithADoubleAndUnit* fpAbortEventIfELossUpperThan;
  G4UIcmdWithADoubleAndUnit* fpMinKineticE;
  
public:
  PrimaryKiller(G4String name, G4int depth=0);

  virtual ~PrimaryKiller();
  
  /** Set energy under which the particle should be
   killed*/
  inline void SetEnergyThreshold(double energy){
    fKineticE_Min = energy;
  }
  
  /** Set the energy loss from which the primary is
   killed*/
  inline void SetMinLossEnergyLimit(double energy){
    fELossRange_Min = energy;
  }
  
  /** Set the energy loss from which the event is
   aborted*/
  inline void SetMaxLossEnergyLimit(double energy){
    fELossRange_Max = energy;
  }

  /** Method related to G4UImessenger
      used to control energy cuts through macro file
   */
  virtual void SetNewValue(G4UIcommand * command,
                           G4String newValue);
  
protected:
  virtual G4bool ProcessHits(G4Step*,
                             G4TouchableHistory*);

public:
  virtual void Initialize(G4HCofThisEvent*);
  virtual void EndOfEvent(G4HCofThisEvent*);
  virtual void clear();
  virtual void DrawAll();
  virtual void PrintAll();
};
#endif
