Game Over

The end state

State machines often, but not always, have an end state. This is a state from which we can’t transition. In Islands, we have an end state called :game_over.

We won’t need any new check/2 clauses for the :game_over state because there are no new actions to add to the whitelist. The catchall clause returns an error no matter what we try to do when the state is :game_over.

At this point, we can see our state machine make it through all the states and try all the events.

New IEx session

Let’s start a new IEx session, get a new rules struct, and make sure it’s in the ...