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LittleJS - Tiny and Fast HTML5 Game Engine

Package Exports

  • littlejsengine
  • littlejsengine/engine/engine.all.module.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (littlejsengine) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

LittleJS Logo LittleJS - The Tiny JavaScript Game Engine That Can

All aboard!

LittleJS is a super lightweight JavaScript game engine with a fast hybrid rendering system. It provides a comprehensive set of tools including rendering, physics, particles, sound effects, music, input handling, and debug tools. The code is very clean and well documented with a variety of examples to get you started. Choo-Choo! 🚂

LittleJS Screenshot

Examples

Hello World - Clean project with only a few things to get you started

Puzzle Game - Match 3 puzzle game with HD rendering and high score tracking

Platformer - Platformer/shooter with procedural generation and destruction

Breakout - Breakout game with post processing effect

Stress Test - Max sprite/object test and music system demo

Particle System Designer - Particle system editor and visualizer

Features

  • Very small footprint with no dependencies
  • Can update and render 10,000+ objects at 60fps, often many times more
  • Object oriented system with fast 2D physics and collision handling for axis aligned boxes
  • Positional audio effects with ZzFX and music with ZzFXM, mp3s, or wavs
  • Input processing system with keyboard, mouse, gamepad, and touch support
  • Particle effects system (particle editor/designer in progress)
  • Medal system tracks and displays achievements with Newgrounds and OS13k integration
  • Several easy to understand example projects you can build on
  • Apply Shadertoy compatible shaders for post processinge effects
  • Debug tools and debug rendering system
  • Full documentation automatically generated from the source code block tags with JSDoc
  • Build system automatically combines everything, minifies, and removes unused code
  • For size coding competitions like js13kGames, starter project builds to a 7KB zip file
  • Easily build a Windows executable with Electron for distribution on platforms like Steam
  • Open Source with the MIT license so it can be used for anything you want
  • Can be imported as a JavaScript module and includes an example module project

Builds

To easily include LittleJS in your game, you can use one of the 3 pre-built js files. These are also built automatically by the build scripts.

The hello world example includes a batch file build.bat that compresses everything into a tiny zip file using Google Closure, UglifyJS, Roadroller, and ECT. You must run buildSetup.bat to install the necessary npm dependencies.

Debugging

Debug builds of LittleJS have a special menu that can be opened by pressing ~, the tilde key.

  • ~: Debug Overlay
  • 1: Debug Physics
  • 2: Debug Particles
  • 3: Debug Gamepads
  • 4: God Mode
  • 5: Save Screenshot

Games Made With LittleJS

LittleJS Logo