[Golist] HydroTween direct method calls--not callbacks? + HydroSequence

Thu Jul 3 06:40:10 PDT 2008

Eric-Paul,

Adding custom cases to Seqeuncers and other utils is a dangerous game  
because it's a bottomless pit. You would have to loosen the typing on  
the inputs of the sequencer which reduces its value quite a bit, to  
pull off what you're suggesting.

I like Jud's thing, seq.addStep( new  
CallbackTrigger(myFunctionName) ); because it fits the paradigm. It  
plays by the one basic rule the sequence sets up: pass an IPlayable  
instance that dispatches a COMPLETE event. As a coder it shouldn't  
feel like a hassle to wrap the function in a new CallbackTrigger()  
because logically you know that you're creating a generically  
IPlayable wrapper that does a specific thing – that's how OO  
programming works. Function calls are just one of many many things  
people might want to do. (That said I will probably incorporate Jud's  
class into GoASAP because people seem to universally miss it.)

Later if you really crave a more stripped-down syntax, write a parser  
that deals with all the special cases in the world – that's the level  
where all rules can and should be bent and blurred.

That's just my two cents; you are of course free to modify SequenceCA  
to your heart's content!

m

On Jul 3, 2008, at 3:58 AM, Eric-Paul Lecluse wrote:

> Thx Jud,
>
> The default LinearGo will take one second to run (defaultDuration),  
> so now I’m doing this:
>
>                 var l : LinearGo = new LinearGo(0,  
> 0);                 
> l.addCallback(mAnimator.showBirdsEyeView);                 
> mSequence.addStep(l);
> And it does what I want it to do. The animation package I used to  
> use (ActionQueue from ASAPLibrary) has the ability to just do  
> something similar to:
>
>                 mSequence.addStep(mAnimator.showBirdsEyeView);
>
> It’s cleaner, but would require more coding in the SequenceCA. I’ll  
> stick to the working code for now, and then maybe after the current  
> project I’ll try to create a Go-package with the syntax I’m used to.
>
> Cheers,
> EP.
>
> On 7/2/08 19:12 , "Jud Holliday" <judh at ZAAZ.com> wrote:
>
>> Moses may be able to correct me, but I don’t think there’s a way to  
>> call a function directly from a sequence without setting up a tween  
>> of some sort with a callback.
>>
>> This is untested, but something like:
>>
>> var seq:SequenceCA = new SequenceCA();
>> var tween:LinearGo = new LinearGo();
>> tween.addCallback(myFunctionName, GoEvent.START);
>>
>> seq.addStep(tweeen);
>> seq.start();
>>
>> Maybe there is an easier way?
>>
>> If you want to try using some classes outside of the core Go  
>> source, one of the classes in the ZAAZ Go Library was created for  
>> the purpose of making function calls. It’s one I’ve mentioned in  
>> previous threads called CallbackTrigger. It would look something  
>> like this:
>>
>> var seq:SequenceCA = new SequenceCA();
>> seq.addStep( new CallbackTrigger(myFunctionName) );
>> seq.start();
>>
>> Of course in both examples you would have other steps in your  
>> sequence as well.
>>
>> If you’re interested in checking it out, it is available out on the  
>> Go Playground (as a zip or through SVN). Better examples are  
>> included.
>>
>> http://code.google.com/p/goplayground/
>>
>>
>>
>> -Jud
>>
>>
>> From: golist-bounces at goasap.org [mailto:golist-bounces at goasap.org]  
>> On Behalf Of Eric-Paul Lecluse
>> Sent: Monday, June 30, 2008 3:29 AM
>> To: Mailing list for the Go ActionScript Animation Platform
>> Subject: Re: [Golist] HydroTween direct method calls--not  
>> callbacks? + HydroSequence
>>
>> Hey list, I’m currently using GO’s SequenceCA (via an example by  
>> John Grden). In the sequence I’d like to insert a single direct  
>> functioncall, as you are doing with the fuse-named sequence below.  
>> Is that possible with a SequenceCA?
>>
>> Obviously I’m very new to Go, for I can’t even find the HydroTween  
>> class in the Go SVN repos.
>>
>> Who’ll give me a slap in the face and a kick in the right direction?
>> Cheers,
>> Eric-Paul.
>>
>> On 6/27/08 17:52 , "Donovan Adams" <donovan at hydrotik.com> wrote:
>> As a matter of fact there is.  I've been in the process of testing  
>> an update to HydroTween as well as a breakout for Fuse style  
>> sequencing which more easily extends the power of SequenceCA.  My  
>> continuing plan with HydroTween is to keep everything self  
>> contained, however this really made more sense in order to take  
>> advantage of Go's flexibility. SO with that said, I've added  
>> another companion class called HydroSequence.  Works like this:
>>
>> import com.hydrotik.go.HydroSequence;
>>
>> var fuse:HydroSequence = new HydroSequence();
>>
>>
>>             for (i = 0; i < _headArray.length - 1; i++) {
>>                 //HydroTween.go(_headArray[i].container, {alpha: 
>> 1}, .25, i/4, Quadratic.easeOut);
>>                 fuse.addItem({target:_headArray[i].container, alpha: 
>> 1, duration:.15, easing:Quadratic.easeOut});
>>             }
>>
>>
>>             fuse.addItem({target:_logo, alpha:1, duration:1,  
>> easing:Quadratic.easeOut});
>>             fuse.addItem({target:_headArray[_headArray.length -  
>> 1].container, delay:1,  alpha:1, duration:.1,  
>> easing:Quadratic.easeOut});
>>             fuse.addItem({func: triggerAudio});
>>             fuse.addItem({func: _scope.addEventListener, args: 
>> [Event.ENTER_FRAME, renderHeads]});
>>             fuse.addItem({func: drawNav});
>>
>>             fuse.start();
>>
>> HydroSequence internally generates instances of HydroTween to a  
>> sequence. All of the functionality of SequenceCA is accessble  
>> through HydroSequence now.
>>
>> If you are interested in testing out/playing with the new version  
>> of HydroTween and HydroSequence, contact me offlist and I'll send  
>> you the latest. So far it's working great, but wanted to make sure  
>> it gets a decent testing before formally posting the updates.  
>> Otherwise I should be releasing this soon.
>>
>>
>> Moses, forgive me for naming all my sequences "fuse". :) Habit I  
>> picked up from using Fuse AS2 and I copied and pasted this from the  
>> new scaretactics site.
>>
>> http://www.scifi.com/scaretactics/
>>
>>
>> *******
>> Are there any plans to allow HydroTween's sequencing to allow for  
>> direct method calls instead of callbacks? Something like:
>>
>> var seq1:SequenceCA = HydroTween.sequence(
>>         ,{target:my_mc, x:0, y:0, alpha:1, duration:3,  
>> easing:Sine.easeInOut}
>>         ,{scope:this, func:"myFunction", args["hi"]}
>> }
>>
>> I've been on an Flash hiatus, and must say I'm impressed with how  
>> far HydroTween's come :)
>>
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