How to preload the main movie with levels all at the same.

Step 1

Put a stop(); action in the first Keyframe of the movie(s) being loaded and nothing else. No movie clip, no graphic, no music or picture but just an empty Keyframe and a stop(); action. Then you load the movies you want. You can load all the movies at once or just a few.

Step 2

This  is the code to preload the movie(s), put this code on your preloader:

onClipEvent (load) {
// Load Three movies
loadMovieNum (“Music.swf”, 1);
loadMovieNum (“Music.swf”, 2);
loadMovieNum (“Music.swf”, 3);
}

onClipEvent (enterFrame) {
// We devide it by 1000 to get rid of the decimal numbers
Total = Math.floor(_level1.getBytesTotal()/1000)+(_level2.getBytesTotal()/1000)+(_level3.getBytesTotal()/1000)+(_root.getBytesTotal()/1000);
Loaded = Math.floor(_level1.getBytesLoaded()/1000)+(_level2.getBytesLoaded()/1000)+(_level3.getBytesLoaded()/1000)+(_root.getBytesLoaded()/1000);
Percent = Math.floor((Loaded/Total)*100);
_root.PercentDisplayTwo = int(Loaded)+” KB “+”  |  “+(Total)+” KB”+”  |  “+(Percent)+” %”;
if (Percent == 100) {
// Have a frame lable inside the loaded movie so you can park it
// and call it when ever you want
_level1.gotoAndStop(“One”);
_level2.gotoAndStop(“One”);
_level3.gotoAndStop(“One”);
_root.play();
}
}

Today if your flash exceed 700 KB (the size of a larger picture), is if you put a Preloader.

Actionscript 3 is very simple in the first frame put the code

this.loaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgress);
this.loaderInfo.addEventListener(Event.COMPLETE, onComplete);

function onProgress(e:ProgressEvent):void{
	var loaded:Number = e.target.bytesLoaded;
	var total:Number = e.target.bytesTotal;
	var pct:Number = loaded/total;
	loaderMc.barMc.scaleX = pct;
}

function onComplete(e:Event){
	play();
}

Where “loaderMc is a MovieClip that contains another MovieClip” barMc. To make things interesting, “barMc” you put on a mask layer in which you can draw like you want to show your progress bar.

Circular Dynamic Preloader Tutorial – Flash ActionScript 3.0 Website Content Loader