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// G4PSSphereSurfaceCurrent3D
#include "G4PSSphereSurfaceCurrent3D.hh"

////////////////////////////////////////////////////////////////////////////////
// (Description)
//   This is a primitive scorer class for scoring Surface Current.
//  Current version assumes only for G4Sphere shape, and the surface
//  is defined at the inside of the sphere.
//   The current is given in the unit of area.
//    e.g.  (Number of tracks)/mm2.
//
// Surface is defined  at the inside of sphere.
// Direction                  -Rmin   +Rmax
//   0  IN || OUT            ->|<-     |      fCurrent_InOut
//   1  IN                   ->|       |      fCurrent_In
//   2  OUT                    |<-     |      fCurrent_Out
//
// Created: 2007-08-14  Tsukasa ASO
// 2010-07-22   Introduce Unit specification.
//
///////////////////////////////////////////////////////////////////////////////

G4PSSphereSurfaceCurrent3D::G4PSSphereSurfaceCurrent3D(const G4String& name,
                                                       G4int direction,
                                                       G4int ni, G4int nj,
                                                       G4int nk, G4int depi,
                                                       G4int depj, G4int depk)
  : G4PSSphereSurfaceCurrent(name, direction)
  , fDepthi(depi)
  , fDepthj(depj)
  , fDepthk(depk)
{
  SetNijk(ni, nj, nk);
}

G4PSSphereSurfaceCurrent3D::G4PSSphereSurfaceCurrent3D(
  const G4String& name, G4int direction, const G4String& unit, G4int ni, G4int nj,
  G4int nk, G4int depi, G4int depj, G4int depk)
  : G4PSSphereSurfaceCurrent3D(name, direction, ni, nj, nk, depi, depj, depk) 
{
  SetUnit(unit);
}

G4int G4PSSphereSurfaceCurrent3D::GetIndex(G4Step* aStep)
{
  const G4VTouchable* touchable = aStep->GetPreStepPoint()->GetTouchable();
  G4int i                       = touchable->GetReplicaNumber(fDepthi);
  G4int j                       = touchable->GetReplicaNumber(fDepthj);
  G4int k                       = touchable->GetReplicaNumber(fDepthk);

  return i * fNj * fNk + j * fNk + k;
}
