// This function goes through the room objects

// and pulls back their info and creates the XML

private function createXML(e:Event) : void {

        // Create a <map /> node

        var map:XML = new XML(<map />);

        // Create a <rooms /> node to be added to the map XML

        var rooms:XML = new XML(<rooms />);

        // Add the <rooms> to the <map> node

        map.appendChild(rooms);

        // aRooms is an array of Room Objects

        var len:int = aRoomTiles.length;                

        for (var i:int = 0; i < len; i++) {

                // Create a <room /> node

                var room:XML = new XML(<room />);

                // Create a bitmap from the bitmapData stored in the room object

                var tempImage:Bitmap = new Bitmap(aRooms[i].backgroundImageData);

                // Convert the image to a byte array

                var bytes:ByteArray = tempImage.bitmapData.getPixels(tempImage.bitmapData.rect);

                // This is the Base64 encoded string of the image

                var imageString:String = Base64.encode(bytes, false);

 

                // Create a <roomBG /> node

                var roomBG:XML = new XML( < bg > { imageString } </bg>);

                // Add the roomBG node to the room node

                room.appendChild(roomBG);

                // Add the room node onto the rooms node

                rooms.appendChild(room);

        }

}