ActionScript DynamicEvent, RemoteClass, and RemoteClassSamples

DynamicEvent.as

// a simple pure-AS3 DynamicEvent class
package com.thefifthcircuit.utils {
	import flash.events.Event;
	
	public dynamic class DynamicEvent extends Event {
		public function DynamicEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = false) {
			super(type, bubbles, cancelable)
		}
	}
}

RemoteClass.as

// load a class from a remote swf
package com.thefifthcircuit.utils {
	import flash.display.Loader;
	import flash.events.EventDispatcher;
	import flash.events.Event;
	import flash.net.URLRequest;
	import com.trustnode.bikegame.DynamicEvent;
	
	public class RemoteClass extends EventDispatcher {
		private var loader:Loader;
		private var url:String, klassName:String;
		public var loaded:Boolean = false;
		public var remoteClass:*;
		
		public function RemoteClass(url:String, klassName:String):void {
			loader = new Loader();
			this.url = url, this.klassName = klassName;
			
			loader.contentLoaderInfo.addEventListener(Event.COMPLETE, klassLoaded);
			loader.load(new URLRequest(url));
		}
		public function complete(callback:Function):void {
			if(!loaded) {
				addEventListener("loaded", callback);
			} else {
				var event:DynamicEvent = new DynamicEvent("loaded");
				event.remoteClass = klass;
				
				callback(event);
			}
		}
		private function klassLoaded(e:Event):void {
			loaded = true;
			klass = loader.contentLoaderInfo.applicationDomain.getDefinition(klassName);
			
			var event:DynamicEvent = new DynamicEvent("loaded");
			event.remoteClass = klass;
			
			dispatchEvent(event);
		}
	}
}

RemoteClassSample.as

var url:String = "DisplaySampleTest.swf";
var klassName:String = "com.thefifthcircuit.displaySampleTest.DisplaySample";
var util:RemoteClass = new RemoteClass(url, klassName);

util.complete(function(e:*):void {
	var displaySample:* = new e.klass();
	
	trace(displaySample.foo);
});