public void InitTargetPoints(Point _start, Point _end)
 {
     target.Init();
     target.points[0] = _start;
     target.points[1] = _end;
 }
 public void InitSourcePoints(Point _start, Point _end)
 {
     source.Init();
     source.points[0] = _start;
     source.points[1] = _end;
 }