Snek Game

A gamedev rite of passage to be sure. Made with P5.js.

Demo

You can play the demo here!

Features

• Tight, responsive yet forgiving controls (keyboard or gamepad)
• Obstacles and puzzle-like rooms to escape
• 4 difficulty modes
• High score leaderboard
• Chiptune original soundtrack
• A level editor

Tools Used

• P5.js
• Web Audio API
• Web Gamepad API

Development

Start dev server:

npm start

In a separate tap, watch for JS file changes:

npm run watch

Deployment - GH

git subtree push --prefix dist origin gh-pages

If you need to force push subtree changes, see here.

Packaging for Native Builds (Steam, etc.)

SNEK uses nw-builder to bundle the application as an native executable binary for various platforms (linux, osx, windows).

Install jq (used to synchronize package.json versions):

homebrew install jq

Install nw-builder:

npm i nw-builder --save-dev

To build native binaries, run:

cd bin && ./package.sh

Convert WAV to MP3

bitrate=[128k|256k]

128k is a tad bit lossy for my taste. Loses some of the high-end.

brew install ffmpeg

cd /path/to/dir
BITRATE=256k
convertmp3() {
  ffmpeg -i "$1" -acodec mp3 -b:a $BITRATE "mp3/${1%.*}.mp3"
}
for i in *.wav; do convertmp3 $i; done

Sources:

• https://www.christopherlovell.co.uk/blog/2016/08/16/convert-wav-mp3.html
• https://trac.ffmpeg.org/wiki/Encode/MP3
• https://stackoverflow.com/a/33766147

Testing

Run all tests

npm test

Run a single test

npm test -- -g <grep_pattern>
// e.g.
npm test -- -g "editorUtils"
// verbose logging
DEBUG=true npm test -- -g "editorUtils"