Why is as3.0 running worse then 2.0

[dukes90]

I made a simple flash in 2.0 where you are using a custom cursor and click in the blank screen. Where ever you click, it places a bullet hole and plays a gunshot sound. It runs perfectly fine and smoothly, but when I convert it to 3.0 it lags a little bit and sometimes misses a click. Why is it doing this?

here's the code in 2.0

// Hide the mouse 
Mouse.hide(); 
// Set the Crosshair as your new mouse, set depth to 1 mill so the cursor will stay on top.
attachMovie("crosshair", "crosshair", 1000000); 
crosshair.onEnterFrame = function() { 
     this._x = _xmouse; 
     this._y = _ymouse; 
}; 

//attach the sound file
var snd = new Sound();
snd.attachSound("bang.wav");

var a=1; //a is the depth, increment with each click
// Place a bullet when the mouse is pressed as wel as play the sound
function onMouseDown() { 
     startx = _xmouse; 
     starty = _ymouse; 
     attachMovie("bullet", "bullet", a, {_x:startx, _y:starty} );
     snd.start(); 
     a++;
}

------------------------------------------------
and here's the code in 3.0

// Hide the mouse 
Mouse.hide(); 
// Set the Crosshair as your new mouse 
var crosshair:Crosshair = new Crosshair ();
addChild(crosshair);
stage.addEventListener(Event.ENTER_FRAME, enterFrameHandler);
function enterFrameHandler(event:Event):void 
{
crosshair.x = mouseX;
crosshair.y = mouseY;
}
var snd:Bang = new Bang();

//add a onclick event listener
stage.addEventListener(MouseEvent.CLICK, onClick);
// Place a bullet when the mouse is pressed 
function onClick(event:MouseEvent) : void  
{ 
     var bullet:Bullet = new Bullet();
	 addChild(bullet);
	 bullet.x=mouseX;
	 bullet.y=mouseY;
	 //play bang
	 snd.play();
	 //to keep the custom cursor on top
	 swapChildren(bullet, crosshair);

}

-----------------------
is there any other way to keep the custom cursor always at the top level other then using swapChildren()? I noticed that it ran slightly better with it commented out but still slower then the 2.0.

[Joe Meering]

Sorry buddy, the AS3 version worked fine for me! Maybe someone else can try it and see if they have a problem or not. It's a long shot, but maybe you had a browser open at the same time which has flash applications running. This machine I'm on uses XP, is 2.0Ghz, 1G ram. Maybe yours is an older computer....just trying to think of reasons. Nice code though!

[dukes90]

Thanks, I know the code works it's just that if you run the 2.0 version first then try the 3.0. I think you will notice that when you click multiple times quickly in the 3.0 the response is just a little bit slower. I'm running my on vista 2.2Ghz dual core with 2G ram, of course vista is a memory hog.

[Joe Meering]

Yes I see now. Ouch! That's surprising! Sorry I don't know.

[Oaf]

I think the problem is that you're adding a new child every time you click the mouse - eventually the whole thing will grind to a halt. You need some way of cleaning up redundant children once the bullet movie has finished.

[Joe Meering]

It don't think it'll be cos of too much memory use from using 'addChild', because even from the start the AS3 version is less quick and you can't click as often, compared to the AS2 version.

[dukes90]

exzactly Joe, I was just suprised because I thought that AS3 is supposed to be 10x faster. I'm just wondering if there's a better way to do this. Like i said a little bit of the lag is due to having to swap the child each time for the cursor to stay on top, but even with that commented out it's still slightly slower.

[dukes90]

ha this line of code fixed the lag

event.updateAfterEvent();