How to Tween A Variable with Flash and TweenLite

Wow, I feel like I'm lost in an unlit labyrinth when all of a sudden you appear from thin air and while showing me my way out you point your flashlight in dark creepy corners revealing the treasures lie there and chattily explain their history and magical nature.
var snorkl_TV:MagicalTreasure = new MagicalTreasure; // hope this makes sense

@Laszlo, it is my pleasure to shine my flashlight into those creepy corners for you. It is great to have you on the tour!

dig it man! I never thought to tween vars like that. You learn something new everyday! Thanks for the info!
- P

thx for dropping in Patrick. Yeah, I didn't know much about doing this myself until recently.

Hello! Thanks a lot for your effort and sharing. I have one question though.
According to your script above, following should work:

var score:Number = 1.1234567890;

score_txt.text = int(score);
//'score_txt would be dynamic textfield on the stage.

But when I test it, following error pops up.
Error:1067: Implicit coercion of a value of type int to an unrelated type String.

Why is your script working but example above doesn't?
Thanks.

Greetings Bailiwick,

I have a saying when I come across situations like you described… “Flash

is a Jerk”.

I have seen the error you described for myself many times and it makes me

scratch my head. There are plenty of times when I don't see it as well.

First to solve your problem do this:

score_txt.text = String(int(score));

This will force the number you put into the textfield to be a String and

not a Number.

It seems the textfield wants to have a String value as its text property.

This really annoyed me when switching to AS3.

Here's the kicker, how come I don't need to use this method in my

example???? Honestly I don't know. In fact the first time I recorded this

tutorial I was befuddled as to why I didn't have to do the String()

conversion.

I just messed around and tried to force the error you were getting and here

is the deal.

The error goes away and you don't need to force the String() conversion IF

THE TEXTFIELD IS INSIDE A MOVIECLIP…?!?!!

So in my example my textfield is inside of score_mc.

I will need an AS3 heavyweight to offer some sound reasoning for WHY this is

the case.

I will probably do a quick tutorial on this as it is super annoying.

Thanks SO MUCH for trying to work through this example and posting your

troubles.

Carl

Hi!
Thanks again. Very thorough explanation. I will remember your tips because they are very useful.
There's one more thing that can be done to not see the error pop up. Turn off Strict and Warning mode in AS3 publish settings.
But this is not recommended I guess, even thou this particular script would work.

Keep up the good work.

This doesn't work when using the Document class. Do you know how to make it work with the Document class?

Hi Gimp,

You will have to provide a bit more information. What doesn't work? What errors are you getting? Are you importing all the necessary classes?

if youre calling this from inside a class, you need to make sure its a public property that you’re tweening. otherwise it throws a compiletime error.

regards.robin

thanks Robin. I’m sure that will help some folks out of a jam.

best,

Carl

Any chance you have this in AS2? I tried converting it and have it mostly working but I’m obviously not porting something over correctly.

try this: http://www.snorkl.tv/dev/tweenVariable/tweenVariableAS2.zip
(fla only)

the big thing is making your button function look like this:

addTen_mc.onRelease = function(){

targetScore+=10;
TweenMax.fromTo(score_mc, 1.2, {_alpha:0, _yscale:0, _xscale:0},{_alpha:1, _xscale:2.1, _yscale:2.1, ease:Back.easeOut});

TweenLite.to(_root, 1, {score:targetScore, onUpdate:showScore, ease:Linear.easeNone}); }