Games: Guessing Game

Mix.install([
  {:jason, "~> 1.4"},
  {:kino, "~> 0.8.0", override: true},
  {:youtube, github: "brooklinjazz/youtube"},
  {:hidden_cell, github: "brooklinjazz/hidden_cell"}
])

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Games: Guessing Game

In your existing Games project, you’re going to create a number guessing game which accepts user input through the command line.

You should be able to start your project by running the following from the game folder in the command line.

iex -S mix

Then you can start the game with the Games.GuessingGame module.

Games.GuessingGame should prompt the user to guess a number between 1 and 10.

iex> Games.GuessingGame.play()
Enter your guess:

If the guess is correct, return a winning message.

Enter your guess: 10
Correct!

if the guess is incorrect, return a failing message.

Enter your guess: 10
Incorrect!

Bonus: Re-Attempt

If the guess is incorrect, re-prompt the user to enter another guess until they succeed.

Enter your guess: 10
Incorrect!
Enter your guess: 5
Incorrect!
Enter your guess: 7
Correct!

Bonus: High Or Low!

If the guess is too high or low, prompt the user with informative feedback.

Enter your guess: 10
Too High!
Enter your guess: 5
Too Low!
Enter your guess: 7
Correct!

Mark As Completed

file_name = Path.basename(Regex.replace(~r/#.+/, __ENV__.file, ""), ".livemd")

save_name =
  case Path.basename(__DIR__) do
    "reading" -> "games_guessing_game_reading"
    "exercises" -> "games_guessing_game_exercise"
  end

progress_path = __DIR__ <> "/../progress.json"
existing_progress = File.read!(progress_path) |> Jason.decode!()

default = Map.get(existing_progress, save_name, false)

form =
  Kino.Control.form(
    [
      completed: input = Kino.Input.checkbox("Mark As Completed", default: default)
    ],
    report_changes: true
  )

Task.async(fn ->
  for %{data: %{completed: completed}} <- Kino.Control.stream(form) do
    File.write!(
      progress_path,
      Jason.encode!(Map.put(existing_progress, save_name, completed), pretty: true)
    )
  end
end)

form

Commit Your Progress

Run the following in your command line from the curriculum folder to track and save your progress in a Git commit. Ensure that you do not already have undesired or unrelated changes by running git status or by checking the source control tab in Visual Studio Code.

$ git checkout -b games-guessing-game-exercise
$ git add .
$ git commit -m "finish games guessing game exercise"
$ git push origin games-guessing-game-exercise

Create a pull request from your games-guessing-game-exercise branch to your solutions branch. Please do not create a pull request to the DockYard Academy repository as this will spam our PR tracker.

DockYard Academy Students Only:

Notify your teacher by including @BrooklinJazz in your PR description to get feedback. You (or your teacher) may merge your PR into your solutions branch after review.

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