simple_state_machine 0.1.0

A simple definition of a state machine
Documentation 
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/// The subunit for the state machine.
pub trait State {
    /// Runs code for this current state and updates necessary substates for use
    // in the `next` function.
    fn run(&mut self);
    /// Uses this state's current substates to determine the next state to
    /// traverse to, or returns itself.
    fn next(self: Box<Self>) -> Option<Box<dyn State>>;
}