public static Railway.Point GetTail(Railway.Point point)
{
if (point == null)
{
return(null);
}
while (true)
{
Railway.Point nextPoint = point.GetNextPoint();
if (nextPoint == null)
{
return(point);
}
else
{
point = nextPoint;
}
}
}
public static void Travel(Railway.Point point, System.Action <Railway.Point> action)
{
if (point == null)
{
return;
}
while (true)
{
action(point);
Railway.Point nextPoint = point.GetNextPoint();
if (nextPoint == null)
{
break;
}
else
{
point = nextPoint;
}
}
}