implementing a state machine using the “yield” keyword

Question

Is it feasible to use the yield keyword to implement a simple state machine as shown here. To me it looks like the C# compiler has done the hard work for you as it internall

Answer 1

While this is not a state machine in the classical sense, the article about Iterator-based Micro Threading uses yield creatively for state-based actions.

IEnumerable Patrol ()
{
    while (alive){
        if (CanSeeTarget ()) {
            yield return Attack ();
        } else if (InReloadStation){
            Signal signal = AnimateReload ();
            yield return signal;
        } else {
            MoveTowardsNextWayPoint ();
            yield return TimeSpan.FromSeconds (1);
        };
    }
    yield break;
}