To expand on my earlier post about enumerations I'm going to look at Finite State Machines in a relatively general sense. Let's start with breaking down what exactly a Finite State Machine is. We can look at the descriptive words to see that it is a machine, or system, that consists of a finite number of states. Great, but what does that mean? In a sense it is a way to package your code so only the desired pieces run at the desired time, this makes them very useful for succinct organization. In the rest of the article we'll look at different ways to implement the system, as well as the pros and cons of each.