Ped. Run

package
{
    import flash.display.Bitmap;
    import flash.display.Graphics;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.events.KeyboardEvent;
    import flash.text.TextField;
    import flash.text.TextFieldAutoSize;
    import flash.text.TextFormat;
    import flash.ui.Keyboard;
    import flash.utils.*;

    /**
     * ...
     * @author DogeGames Studios
     */

    public class Main extends Sprite
    {
        public var inair:int = 1;
        [Embed(source = 'img/char.png')]
        var charClass:Class;
        var char:Bitmap = new charClass();
        [Embed(source = 'img/rock.png')]
        var rockClass:Class;
        var rock:Bitmap = new rockClass();
        public function Main():void
        {

            if (stage) init();
            else addEventListener(Event.ADDED_TO_STAGE, init);
            stage.addEventListener(KeyboardEvent.KEY_DOWN, detectKey);
            stage.addEventListener(Event.ENTER_FRAME, moveRock);
        }

        private function init(e:Event = null):void
        {
            addChild(rock);
            removeEventListener(Event.ADDED_TO_STAGE, init);
            // entry point
            var text:TextField = new TextField();
            text.text = "Pedestrian Run";
            char.x = 50;
            char.y = 482;
            rock.x = 850;
            rock.y = 520;
            var format:TextFormat = new TextFormat();
            format.size = 24;
            format.font = "Comic Sans MS";
            text.setTextFormat(format);
            text.autoSize = TextFieldAutoSize.LEFT;
            addChild(text);
            addChild(char);
            drawLine();
        }

        function detectKey(event:KeyboardEvent):void {
            var key:uint = event.keyCode;
            var step:uint = 5;

            switch (key) {
                case Keyboard.SPACE :
                    spacePressed();
            }
        }

        public function spacePressed():void {
            char.y = char.y - 50;
            inair = 0;
            setTimeout(down, 500);
        }

        function down():void {
            inair = 1;
            char.y = 482;
        }

        function drawLine():void {
            var g:Graphics = graphics;

            g.lineStyle(5, 0, 100);
            g.moveTo(0, 550);
            g.lineTo(850, 550);
        }

        private var speed:Number = 15;

        function moveRock(event:Event):void {
            rock.x -= speed;
            if (rock.x == 0) {
                stage.removeEventListener(Event.ENTER_FRAME, moveRock);
                rock.x = 850;
                rock.y = 520;
                stage.addEventListener(Event.ENTER_FRAME, moveRock);
            }
        }

    }

}