Return of the Key Class to Actionscript 3.0

This started out merely as a convenient class for handling keystrokes, and checking to see whether a particular key was being held down, mainly for arcade-type games.

As I started rewriting it for public release I wondered if I could emulate as closely as possible the functionality of the old AS1/AS2 Key Class I've spent the past seven years using. I had a play with some static methods and properties, and came up with this

You set it up like this:

import Key;
Key.listen(stage);

Now place it in your game loop and use it the same way you did before:

if (Key.isDown(Key.LEFT)){trace("Left cursor key is being pressed")}

Hit me up in the comments if you have any problems with it.