Slugger

A small browser platformer: guide a slug across the level, collect the strawberries, dodge the salt, and reach the pipe to win.

Originally written in 2011 in plain JavaScript; modernised in 2026 to ES modules, classes, and a requestAnimationFrame game loop, built with Vite.

Controls

• Left / Right arrow keys — move
• Space — jump
• S — shoot slime

Development

npm install
npm run dev      # start the dev server with hot reload
npm run build    # production build into dist/
npm run preview  # serve the production build locally
npm run lint     # eslint
npm run format   # prettier

Project layout

index.html        Entry HTML (loads src/main.js as a module)
src/
  main.js         Bootstraps the menu and game
  menu.js         Title screen
  game.js         Game state, update + render loop
  entity.js       Drawable, collidable game object
  effects.js      Particles and slime-ball projectiles
  input.js        Keyboard handling (KeyboardEvent.code)
  level.js        Level layout as coordinate data
  assets.js       Promise-based image/sound loading
  constants.js    Gameplay tuning values
  style.css       Page styling
public/           Shipped game assets (IMAGES, SOUNDS)
art-source/       Source art (.pyxel, .wav, .fw.png) — not shipped