Maybe converting the actual time elapsed to a constant rate of motion could
help... who knows?
stage.align = "TL";
stage.scaleMode = "noScale";
function checkWrap ( o:DisplayObject ):void
{
if ( o.x > stage.stageWidth ) o.x = 0;
}
var speed:Number = 1;
var tick:Number = 30;
var lastTick2:Number = getTimer();
var lastTick3:Number = getTimer();
var t:Timer = new Timer(tick);
var t2:Timer = new Timer(tick);
t.addEventListener( TimerEvent.TIMER, onT );
t2.addEventListener( TimerEvent.TIMER, onT2 );
stage.addEventListener( Event.ENTER_FRAME, onT3 );
t.start();
t2.start();
function onT( e:TimerEvent ):void
{
// timer
mc.x += speed;
checkWrap ( mc );
}
function onT2( e:TimerEvent ):void
{
// timer + speed
mc2.x += (( getTimer() - lastTick2 ) / tick ) * speed;
lastTick2 = getTimer();
checkWrap ( mc2 );
}
function onT3( e:Event ):void
{
// enter frame + speed
mc3.x += (( getTimer() - lastTick3 ) / tick ) * speed;
lastTick3 = getTimer();
checkWrap ( mc3 );
}
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of jonathan
howe
Sent: Friday, May 23, 2008 3:53 AM
To: Flash Coders List
Subject: Re: [Flashcoders] Tweening text more smoothly - AS3
Apologies if this has already been mentioned... I discarded some of the
original posts.
If you are using a timer with a delay that does divide evenly to your frame
rate, it stands to reason that some screen updates the item will have
traveled more pixels than others.
Example: Frame rate 24 fps roughly equals .042 updates per second:
Frame 1 (.000) : Timer fires at .02, .04
Frame 2 (.042) : Timer fires at .06, .08
...
Frame 10 (.380) : Timer fires at .38, .40, .42
Frame 11 (.422) : Timer fires at .44, .46
So in this example, every ten frames/screen updates you're jumping an extra
pixel. Therefore either keeping framelength % updatedelay = 0, or forcing
screen update with updateAfterEvent() might solve the problem.
Again, sorry if someone already mentioned this.
-jonathan
On Fri, May 23, 2008 at 5:59 AM, EECOLOR <[EMAIL PROTECTED]> wrote:
> You could create a bitmap using BitmapData.draw. Add that to your display
> list, set cacheAsBitmap to true and things should run smootly.
>
> Not sure if it works, but it is just another suggestion.
>
>
> Greetz Erik
>
> On 5/22/08, Vayu Robins <[EMAIL PROTECTED]> wrote:
> >
> > Hej.
> >
> > I am wondering if there is anything that could be done to improve the
> > panning/scrolling/tweening of the news items at the bottom of the this
> > page:
> >
> > http://flashkompagniet.dk/flash/main.php
> >
> > I am running a timer at 20 milliseconds Timer(20, 0);
> >
> > And the news items are being moved a 1px everytime the timer event is
> > dispatched.
> >
> > I dont think they are runnning very smoothly. Is that just me or does
> > anyone else see that too.
> >
> > Can anything be done?
> >
> > Thanks
> > Vayu
> >
> >
> > _______________________________________________
> > Flashcoders mailing list
> > Flashcoders@chattyfig.figleaf.com
> > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
> >
> _______________________________________________
> Flashcoders mailing list
> Flashcoders@chattyfig.figleaf.com
> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
>
--
-jonathan howe :: 404.434.2321 :: 180 High St Apt 26 Portland, ME 04101
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