/// <summary>
/// Determine the proper stepping direction, and return a stepper
/// of appropriate type.
/// </summary>
/// <param name="vMap"></param>
/// <param name="p0"></param>
/// <param name="p1"></param>
/// <returns></returns>
public static Stepper Select(VirtualMap vMap, Vector3 p0, Vector3 p1)
{
bool xMajor = Math.Abs(p0.X - p1.X) > Math.Abs(p0.Y - p1.Y);
Stepper stepper = null;
if (xMajor)
{
stepper = stepperX;
}
else
{
stepper = stepperY;
}
stepper.Init(vMap, p0, p1);
return(stepper);
}