KeyManager

package  libTF.interfaces
{
    import flash.display.Stage;
    import flash.events.KeyboardEvent;

    public class KeyManager
    {

        public static var keys:Vector.<Boolean>;

        public static function init(stage:Stage):void
        {
            keys = new Vector.<Boolean>(256);
            stage.addEventListener(KeyboardEvent.KEY_DOWN, pressed);
            stage.addEventListener(KeyboardEvent.KEY_UP, released);
        }

        private static function pressed(e:KeyboardEvent):void
        {
            keys[e.keyCode] = true;
        }

        private static function released(e:KeyboardEvent):void
        {
            keys[e.keyCode] = false;
        }

        public static function isPressed(val:int):Boolean
        {
            if (val > 255) { return false; }
            return keys[val];
        }

        public static function isPressedStr(val:String):Boolean
        {
            return isPressed(val.toUpperCase().charCodeAt(0));
        }

    }

}