TimedTyper

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Setup

Ensure you type the ea keyboard shortcut to evaluate all Elixir cells before starting. Alternatively you can evaluate the Elixir cells as you read.

TimedTyper

Create a new TimedTyper project with a supervisor.

$ mix new timed_typer --sup

Create a TimedTyper GenServer which starts as part of the application’s supervision tree.

When you start the application, the TimedTyper module should automatically prompt the user with a randomly generated word they need to type.

$ mix run --no-halt
Your word: red
You lose!

The player will lose if they incorrectly spell a word.

Your word: red
rde
You lose!

Prompt the player with another word if they correctly type the prompted word. Keep prompting the player until they lose.

You may use any random list of words. For example: ["red", "blue", "green", "orange", "yellow", "pink"].

Your word: red
red
Your word: blue
blue
Your word: green
green
Your word: yellow
yelow
You lose!

Bonus: End After 5 Seconds

If the user does not enter the word within five seconds, print “You lose!” then crash the game so that you restart.

Bonus: Score Tracker

Store the player score in memory. Increment the score every time they successfully type a word. Print the total score when they lose the game.

Your word: red
red
Your word: blue
You lose!
Score: 1

Bonus: Countdown

Count down from five in the console as the player enters their word.

Your word: red
5
4
3
2
red
Your word: red
5
4
3
2
1
You lose!
Score: 1
Your word: blue

Bonus: Stop

Stop the game and print the player score if the player types "stop".

Your word: red
red
Your word: blue
stop
Score: 1

Bonus: Try Again?

Ask the user if they would like to try again or not. Prompt the user with a new word if they say yes.

Your word: red
5
4
3
2
1
You Lose!
Score: 0
Try Again? Y/N: Y
Your word: blue

Print a thank you message and end the game if they say no.

Your word: red
5
4
3
2
1
You Lose!
Score: 0
Try Again? Y/N: N
Thanks for playing!

Bonus: Executable

Configure the project as an executable. You should be able to build and start the escript.

$ mix escript.build
$ ./timed_typer

Bonus: GitHub

Connect the project to a GitHub repository to build up your growing portfolio of projects.

Mark As Completed

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

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

default = Map.get(existing_progress, file_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, file_name, completed)))
  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 solutions
$ git checkout -b deprecated-timed-typer-exercise
$ git add .
$ git commit -m "finish deprecated timed typer exercise"
$ git push origin deprecated-timed-typer-exercise

Create a pull request from your deprecated-timed-typer-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 instructor by including @BrooklinJazz in your PR description to get feedback. You (or your instructor) may merge your PR into your solutions branch after review.

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