If you are extending a MovieClip - doesn't the MovieClip already have all those things "you are trying to recreate" at your disposal?
That is the whole point of extending a MovieClip - so you DON'T have to go through all the stuff you are going through right now. I am no guru at this stuff, but I write Class Files on a daily basis, and I NEVER have to deal with stuff like this. I create custom listeners, and dispatch events on a regular basis - and it works just beautifully. It just seems like you are reinventing the wheel, and defeating the whole purpose of why things were created this way in the first place. This is just my initial reaction to what I've seen, and I am sure some more experienced people will chime in on this thread. Mike -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Daniel Cardenas Sent: Wednesday, April 12, 2006 7:10 PM To: [email protected] Subject: [Flashcoders] Need help understanding EventDispatcher Hi, I'm trying to learn event handling using the EventDispatcher class and am having a hard time getting a test to work. I'm also fairly new to OOP, so I'm having a hard time finding the problem in my code. I've created a simple "Ball" class that creates an empty MC and then draws a circle in it. I've defined some event methods in the class and contained them within a "declareEventMethods" method. I don't know if that's the right way to do it or not - I modeled this test on various tutorials I've found online, but it's not working. What I'm trying to do is create a new instance of the "Ball" class called "myBall", then notify an event handler of events dispatched by myBall. The handler should then execute a trace command. The "Ball" class assigns the name "testBall" to the MC it creates, and I can trigger the event handler if I define a method directly on the MC that's created, ie: testBall.onPress = function () {myEventHandler(testBall);} but that's not what I'm trying to accomplish. I've pasted the code below - any help would be greatly appreciated. Thanks, Daniel Cardenas ------------------------------------------------------ Ball Class ------------------------------------------------------ class Ball extends MovieClip { public var addEventListener:Function; public var removeEventListener:Function; private var dispatchEvent:Function; public function Ball () { // initialize EventDispatcher mx.events.EventDispatcher.initialize(this); // create a ball MC var aBall:MovieClip = _level0.createEmptyMovieClip('testBall', getNextHighestDepth()); // draw ball aBall._x = 100; aBall._y = 100; aBall.lineStyle(20, 0xff0000, 100); aBall.lineTo(0,.2); } public function declareEventMethods():Void { onMouseDown = function() { dispatchEvent( {type: "mouseDown", target: this} ); } onMouseUp = function() { dispatchEvent( {type: "mouseUp", target: this} ); } onPress = function() { dispatchEvent( {type: "press", target: this} ); } onRelease = function() { dispatchEvent( {type: "release", target: this} ); } } } ------------------------------------------------------ Timeline Code ------------------------------------------------------ /* create object ----------------------------------*/ var myBall:Ball = new Ball(); myBall.declareEventMethods(); /* add listener ----------------------------------*/ myBall.addEventListener("mouseDown", myEventHandler); myBall.addEventListener("mouseUp", myEventHandler); myBall.addEventListener("press", myEventHandler); myBall.addEventListener("release", myEventHandler); /* define handler ----------------------------------*/ function myEventHandler(evt:Object):Void { trace('A ' + evt.type + ' event was dispatched by ' + evt.target); } // this works - but it's not what I'm trying to do... // testBall.onPress = function () {myEventHandler(testBall);} ------------------------------------------------------- [EMAIL PROTECTED] 917-750-6398 AIM: dcardena ------------------------------------------------------- _______________________________________________ [email protected] To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com _______________________________________________ [email protected] To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
