box2d-events #

Box2D's collision event listeners only work (more or less) globally: you
create a listener and attach it to the world, which will get called every time
there's a collision.

To make things a little more managable, here's a module which can take a
box2dweb-commonjs world and give you
an EventEmitter in return. You can also listen to individual fixtures
for ease of use.

Installation ##

`` bash
npm install box2d-events
`

Usage ##

$3

Returns an EventEmitter which will emit the following events:

* begin(fixtureA, fixtureB, info) when a collision first occurs between
two objects.
* end(fixtureA, fixtureB, info) when a collision stops occurring between two
objects.

$3

Returns an EventEmitter` which will emit the same events as above, except only
when they involve that specific object. Note that the first fixture will
always be the one not belonging to the listener.