 | | | Help with timeline controller (simple maths?) | Help with timeline controller (simple maths?) 2005-10-29 - By Jonathan E
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hey santinilox,
i'm not too good at maths also, but here's something.
i think you can just "Math.round" the value of
(percent*totalIntervals), then add 1 to the result.
so if say you have 3 checkpoints like this:
|-- ---- ----|-- ---- ----|
0 1 2
This makes for 2 intervals. if the user clicks at 20%,
calculate it like this:
Math.round(percent*2)
which will return 0.4, which will be rounded to 0 by
Flash, and to which you would add 1, bringing you to
frame 1.
and if we try another scenario, and the user clicks at
40%, Math.round(percent*2) will return 0.8, which will
be rounded to 1 by Flash, to which you would add 1,
bringing you to frame 2.
so the code would be:
gotoAndStop (Math.round(percent*totalIntervals)+1);
totalIntervals being the number of checkpoints minus
1. This is kind of simplistic, but i hope it helps!
(and i hope it still works if you "scale the thing
up")
jonathan.
--- elusive <elu@(protected)> wrote:
> hi santinilox,
>
> you say you can measure the position of the user's
> click by percent.
> and you got the number of frames, right?
> Math.round(percent/(100/frames))+1
> something like that shoud do the job but it's
> untested.
>
> e
>
> santinilox wrote:
>
> >Hi all!
> >
> >I have a little bar for the _root timeline (such as
> the one you can find in
> >any kind of audio/video player). Eg:
> >
> >|----o-- ---- ---- ---- --|
> >
> >If, for example, I have three frames in the _root
> movie, it would be three
> >"checkpoints". Eg:
> >
> >|-- ---- ----|-- ---- ----|
> >
> >When the user clicks in the 40% of the bar:
> >
> >|-- ------x--|-- ---- ----|
> >
> >I would like the little-ball go to the second
> "checkpoint" (ie, the second
> >frame in the _root movie):
> >
> >|-- ---- ----o-- ---- ----|
> >
> >If the user clicks in the 20%:
> >
> >|---x-- -----|-- ---- ----|
> >
> >The ball (and also the _root movie) would travel to
> the first "checkpoint":
> >
> >o-- ---- ---- ---- ---- --|
> >
> >Actually, I know all the values. Eg:
> >
> >User clicked at = 40%
> >_root's _totalframes = 3
> >
> >I know this is a very stupid question, but I've
> spent 3 hours with this
> >issue. When all works fine with my 3-frames test
> movie, it won't work with
> >my 7-frames test movie, and so on...
> >
> >Help, please ;-)
> >
> >
> >~s
> >
> >
> >
> >
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