Impact Box2D Plugin

Box2D Physics Plugin for the Impact Game Engine

This plugin provides easy integration of Box2D into the Impact Game Engine.

Demo

Jetpack Physics Demo

Usage

Copy the box2d directory into your lib/plugins/ directory and require the plugins.box2d.entity and plugins.box2d.game files. Subclass your game from ig.Box2DGame and your entities from ig.Box2DEntity:

MyGame = ig.Box2DGame.extend({
	…
});


// Subclassing ig.Box2DEntity instead of ig.Entity inherits
// everything needed for the physics simulation
EntityCrate = ig.Box2DEntity.extend({
	size: {x: 8, y: 8},
	
	// Collision is already handled by Box2D!
	collides: ig.Entity.COLLIDES.NEVER,
	
	animSheet: new ig.AnimationSheet( 'media/crate.png', 8, 8 ),
	
	init: function( x, y, settings ) {
		this.addAnim( 'idle', 1, [0] );
		this.parent( x, y, settings );
	}
});

See the Physics with Box2D article for more info.