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// $Id: G4Step.cc,v 1.11 2010/10/30 07:49:08 kurasige Exp $
// GEANT4 tag $Name: track-V09-03-09 $
//
//
//---------------------------------------------------------------
//
//  G4Step.cc
//
//  Description:
//    This class represents the Step of a particle tracked.
//    It includes information of 
//      1) List of Step points which compose the Step,
//      2) static information of particle which generated the 
//         Step, 
//      3) trackID and parent particle ID of the Step,
//      4) termination condition of the Step,
//
// Contact:
//   Questions and comments to this code should be sent to
//     Katsuya Amako  (e-mail: Katsuya.Amako@kek.jp)
//     Takashi Sasaki (e-mail: Takashi.Sasaki@kek.jp)
//
// ---------------------------------------------------------------

#include "G4Step.hh"

////////////////
G4Step::G4Step()
////////////////
  :  fTotalEnergyDeposit(0.0),fNonIonizingEnergyDeposit(0.0),
     fStepLength(0.), fpTrack(0), 
     fpSteppingControlFlag(NormalCondition),fSecondary(0),
     fpVectorOfAuxiliaryPointsPointer(0)
{
  fpPreStepPoint  = new G4StepPoint();
  fpPostStepPoint = new G4StepPoint();

  fFirstStepInVolume =false;
  fLastStepInVolume = false;
}

/////////////////
G4Step::~G4Step()
/////////////////
{
  delete fpPreStepPoint;
  delete fpPostStepPoint;
}


/////////////////
G4ThreeVector G4Step::GetDeltaMomentum() const
/////////////////
{ 
  static G4bool isFirstTime = true;
  if (isFirstTime) {
    isFirstTime = false;
#ifdef G4VERBOSE
    G4Exception( "G4Step::GetDeltaMomentum()","Warning", JustWarning, 
		 "This method is obsolete and will be removed soon");
#endif
  }

  return fpPostStepPoint->GetMomentum()
    - fpPreStepPoint->GetMomentum(); 
}

/////////////////
G4double G4Step::GetDeltaEnergy() const
  /////////////////
{ 
  static G4bool isFirstTime = true;
  if (isFirstTime) {
    isFirstTime = false;
#ifdef G4VERBOSE
    G4Exception( "G4Step::GetDeltaEnergy()","Warning", JustWarning, 
		 "This method is obsolete and will be removed soon");
#endif
  }

  return fpPostStepPoint->GetKineticEnergy()
    - fpPreStepPoint->GetKineticEnergy(); 
}