// Like the approach float function, but rotates current along the shortest path
// to the target, like an angle moving along a circle towards a different angle.
public Angle Approach(Angle target, Angle stepSize)
{
degrees = UtilPeriodic.Approach(degrees, target.GetDegrees(),
stepSize.GetDegrees(), INTERVAL_UNSIGNED_DEGREES);
return(this);
}