Well, I generally ask myself two questions when I find myself writing a
recursive functioin: does using a recursive function actually simplify
things here? Do I actually need to use it?
I.e. don't use recursive functions for the sake of having a recursive
function -- you will find that you actually don't have to use them very
often, and if you find yourself using one you should question whether or not
it is really needed... a lot of times (as in this case) the answer will be
no.
But then again, you may have simplified your app for the sake of an example
and you might be doing more things where it would make sense for a recursive
function
- Taka
On Wed, Jan 14, 2009 at 12:29 PM, Merrill, Jason <
jason.merr...@bankofamerica.com> wrote:
> Right Taka, thinking the same thing, and I was just assuming he was doing
> something more (not shown) in the draw function other than just adding the
> child - otherwise, you're just adding blank things to the screen.
>
>
> Jason Merrill
> Bank of America Instructional Technology & Media ยท GCIB & Staff
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>
> -----Original Message-----
> From: flashcoders-boun...@chattyfig.figleaf.com [mailto:
> flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Taka Kojima
> Sent: Wednesday, January 14, 2009 3:09 PM
> To: Flash Coders List
> Subject: Re: [Flashcoders] recursive question?
>
> I would probably just do something like...
>
> private function renderAxis(which:String, doRemove:Boolean = true):void
>
> if(doRemove){removePrevious();}
> switch (which) {
> case ("X") :
> xAxis = new Sprite();
> addChild(xAxis);
> break;
> case ("Y") :
> yAxis = new Sprite();
> addChild(yAxis);
> break;
> case ("both") :
> renderAxis("X",false);
> renderAxis("Y",false);
> break;
> }
> }
>
>
> On Wed, Jan 14, 2009 at 11:27 AM, Mendelsohn, Michael <
> michael.mendels...@fmglobal.com> wrote:
>
> > Hi list...
> >
> > I have two functions, where either an X is rendered, a Y is rendered, or
> > both an X and a Y. removePrevious() is called before anything gets
> > rendered, so as to clear the stage. The problem is when "both" are
> > rendered, removePrevious() is called twice. It first clears the stage,
> > renders a new x, then renders a new y -- but not before removing that
> > newly just created X. How can I avoid this?
> >
> > Thanks,
> > - Michael M.
> >
> > private function removePrevious():void {
> > if (xAxis!=null) {
> > removeChild(xAxis);
> > xAxis = null;
> > }
> > if (yAxis!=null) {
> > removeChild(yAxis);
> > yAxis = null;
> > }
> > }
> > private function renderAxis(which:String):void
> > removePrevious();
> > switch (which) {
> > case ("X") :
> > xAxis = new Sprite();
> > addChild(xAxis);
> > break;
> > case ("Y") :
> > yAxis = new Sprite();
> > addChild(yAxis);
> > break;
> > case ("both") :
> > renderAxis("X");
> > renderAxis("Y");
> > break;
> > }
> > }
> >
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> >
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