Help needed on designing the structure of a flash game

Question

Hi,
I am studying the codes from http://www.emanueleferonato.com/2009/01/16/designing-the-structure-of-a-flash-game-as3-ver sion-part-3/. What I don't get is at level_selection.as. Where does main_menu_button come from? I can't find where it has been created. I only see main_menu, not main_menu_button.
Please help.

Answer 1

The codes in level_selection.as looks like this, but the problem is I cannot find main_menu_button anywhere, except for main_menu.
package {
    import flash.display.Sprite;
    import flash.events.MouseEvent;
    import flash.display.SimpleButton;
    public class level_selection extends Sprite {
        public var main_class:the_game;
        private var level_thumb:level_thumbnail;
        public function level_selection(passed_class:the_game) {
            main_class = passed_class;
            for (var i:int = 1; i<=5; i++) {
                level_thumb = new level_thumbnail(i,main_class);
                addChild(level_thumb);
            main_menu_button.addEventListener(MouseEvent.CLICK, on_main_menu_button_clicked);
        public function on_main_menu_button_clicked(event:MouseEvent) {
            main_class.show_splash();