// PosGen_Line.cc
// Contact person:Matthew Mottram <m.mottram@qmul.ac.uk>
// See PosGen_Line.hh for more details
//———————————————————————//
#include <Randomize.hh>

#include <RAT/PosGen_Line.hh>
#include <RAT/GLG4StringUtil.hh>
#include <RAT/Log.hh>
using namespace RAT;

#include <sstream>

void PosGen_Line::GeneratePosition( G4ThreeVector &argResult )
{
  G4ThreeVector diff = fPoint2 - fPoint1;
  G4double scale = G4UniformRand();

  argResult = fPoint1 + scale * diff;
}

void PosGen_Line::SetState( G4String newValues )
{
  newValues = util_strip_default(newValues);
  if (newValues.length() == 0) {
    // print help and current state
    G4cout << "Current state of this GLG4PosGen_Line:\n"
	   << " \"" << GetState() << "\"\n" << G4endl;
    G4cout << "Format of argument to PosGen_Line::SetState: \n"
      " \"x1_mm y1_mm z1_mm x2_mm y2_mm z2_mm\""
	   << G4endl;
    return;
  }

  std::istringstream is(newValues.c_str());

  // set position
  G4double x1,y1,z1, x2,y2,z2;
  is >> x1 >> y1 >> z1 >> x2 >> y2 >> z2;
  if (is.fail())
    Log::Die( "PosGen_Line::SetState: Could not parse six floats from input string" );
  fPoint1 = G4ThreeVector(x1,y1,z1);
  fPoint2 = G4ThreeVector(x2,y2,z2);
}

G4String PosGen_Line::GetState() const
{
  return util_dformat("%ld\t%ld\t%ld -> %ld\t%ld\t%ld",
		      fPoint1.x(), fPoint1.y(), fPoint1.z(),
		      fPoint2.x(), fPoint2.y(), fPoint2.z());
}