https://github.com/wiringbits/scala-js-games

Simple games ported to Scala.js (Scala 3)
https://github.com/wiringbits/scala-js-games

hacktoberfest scala scala3 scalajs

Last synced: 5 days ago
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Simple games ported to Scala.js (Scala 3)

• Host: GitHub
• URL: https://github.com/wiringbits/scala-js-games
• Owner: wiringbits
• License: mit
• Created: 2022-06-26T04:23:01.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2023-02-05T22:31:35.000Z (almost 2 years ago)
• Last Synced: 2024-08-02T16:47:23.422Z (3 months ago)
• Topics: hacktoberfest, scala, scala3, scalajs
• Language: Scala
• Homepage: https://scalajs-games.wiringbits.net/
• Size: 80.1 KB
• Stars: 64
• Watchers: 4
• Forks: 4
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Scala.js Games (Scala 3)

This is a collection of games ported from Scala 2 to Scala.js (Scala 3): the [source](https://github.com/wiringbits/scala-js-games) for each game is written in Scala, and [Scala.js](https://scala-js.org) cross compiled to run in the browser targeting the [HTML5 Canvas](https://developer.mozilla.org/en-US/docs/HTML/Canvas). The original games can be found [here](https://github.com/lihaoyi/scala-js-games) and targeting Scala 2.

[Live demo](https://scalajs-games.wiringbits.net)

The games are, in order:



    


Asteroids: shoot down the asteroid swarms and avoid getting hit!

    


Astrolander: bring your lander to a a gentle landing on flat ground before you run out of fuel.

    


Snake: eat apples to grow long and don't crash into walls!

    


Pong: outsmart your AI opponent to get the ball past his paddle (right) to score points!

    


Brick: use your paddle to bounce the ball up, destroying all the bricks before you run out of balls.

    


Tetris: collect points by clearing rows and don't let the screen fill with blocks.





    The controls are generally up-down-left-right and spacebar; they

    aren't very complex games. Click on a game to start playing and click

    somewhere else to pause it.



## How to build

- Install [sdkman](https://sdkman.io) - or, make sure to pick the correct java version (see [.sdkmanrc](.sdkmanrc)).

- Install [nvm](https://github.com/nvm-sh/nvm) - or, make sure to pick the correct node version (see [.nvmrc](.nvmrc)).

- Install [sbt](https://www.scala-sbt.org/).

- Clone the repo.

- Run `sbt fastLinkJS` (just to make sure the app compiles).

- Run `npm install` to install the js dependencies.

- Run `npm run dev` to launch the dev server, then, open `http://localhost:3000` to load the app.

- Run `npm run build` to prepare the production build.

## Scala.js bundle size

The bundle size is ~600kb, ~100kb compressed:

![sjs-games-code-size](./docs/images/sjs-games-code-size.png)