Project uses node + Gulp for fast developing.
To install node: https://nodejs.org/en/
Then open your favorite Terminal and run these commands.
$ npm install --global gulp-cli
$ npm install
To run webserver (for running game):
$ gulp webserver
Then go to http://localhost:8000/game.html
To watch everything (js + scss):
$ gulp watch
To run code linting (js + scss):
$ gulp
To compile scss:
$ gulp scss