easy actionscript movieclip switching

timeline.as

/*
Paste the code into the timeline. Set up your library so each clip has a class, and:

switchClip(Menu);
switchClip(Film);

It also returns the new clip, so you can chain methods like this:

switchClip(Film).addEventListener(Event.ENTER_FRAME, function(event:Event) {
  trace('The film is playing!');
})

Quick and dirty.
*/

var currentClip:DisplayObject;

// Switches the current clip, assumes a center point orientation,
// returns self for chaining
function switchClip(clip:Class):DisplayObject {
	if(currentClip) {
		if(currentClip is MovieClip) {
			(currentClip as MovieClip).stop();
		}
		removeChild(currentClip);
	}
	
	currentClip = new clip();
	
	// We don't get valid stage properties until the stage is initialised,
	// so into an event we go
	currentClip.addEventListener(Event.ADDED_TO_STAGE, function(event:Event) {
		currentClip.x = stage.width / 2;
		currentClip.y = stage.height / 2;
		event.target.removeEventListener(Event.ENTER_FRAME, arguments.callee);
	});
	
	addChild(currentClip);
	
	return currentClip;
}