Time to wrap up the app.
We'll need to do a few things. First, we'll add supervision.
For this app, we have a dictionary, and we'll have a dynamic pool of worker processes running the GameServer module. This means we'll need two supervisors.
The top level supervisor will be written in the file lib/hangman.ex,
inside the start/2 function. It will start the dictionary worker and
a second supervisor, Hangman.GameSupervisor.
You'll need to write a module for this second supervisor. It will use
the simple_one_for_one strategy to create and control a pool of
GameServers. Your supervisor module will provide a start_link
function to get itself started, and a new_game function that will
call the supervisor to ask it to spawn a new worked.
Once this part is done, you'll be able to use iex to get it running:
iex> Hangman.start(nil, nil)
iex> pid = Hangman.GameSupervisor.new_game
iex> Hangman.GameServer.make_move("a") # ...
Finally, add the mod: section to the application function in
mix.exs.
mod: { Hangman, [] },
Now when you run iex -S mix, everything should start automatically.
Verify that the game can still be played:
$ mix run -e Hangman.HumanPlayer.play
$ mix run -e Hangman.ComputerPlayer.play