Yeah, I'm gonna have to go the 50 sprites route-- but seriously-- 50 sprites
is the best way? 50? ok, then. I just thought I'd come up with a unique
way of doing things. oh well.
:-)
Cory
----- Original Message -----
From: "Bruce Epstein - Zeus Productions" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, May 17, 2001 10:51 AM
Subject: <lingo-l> Dynamically changing colors in a palette?
> At 8:26 AM -0400 05/17/01, Lingo-L Digest wrote:
> >Is there a way to change the color of a palette by palette index? In
other
> >words, I want to have a map of the 50 states. Each state has its own
color
> >& palette index (even though they will all have the same RGB values) So,
I
> >would want to click on a state, determine it's palette index, and then
> >change the color within the palette (say its index is 20, I would want to
> >change the color in the index position 20 to red from green)
> >
> >Does this make sense? I can't seem to control colors within a palette
using
> >lingo!
>
> Your approach is not the best way to change the color of an object. The
> easiest thing would be to have 50 separate sprites, one for each state,
> instead of trying to determine which state was clicked by virtue of the
> color of the pixel under the cursor.
>
> Once the sprite is clicked, you can change its color in many ways, such as
> by changing its ink effect or setting a custom color for the sprite.
>
> If you stick with one monolithic sprite (which I discourage), you might
> want to check into the Precision Xtra from Penworks. It might help
> determine what item was clicked.
>
> FWIW, there are some old Xtras that may alter palettes, but I wouldn't
> recommend that route. MediaLab, the makers of Photocaster, once had a
Color
> Genie Xobject that performed palette manipulations. I don't think they
ever
> created an Xtra.
>
> There is also a gamma Xtra as a I recall that might alter palettes.
>
> There was also an Xtra circa Director 5 called something like lizardtech
or
> planet something that optimized palettes. I don't know if it was ever
> updated for later releases of Director or if it can change palettes on the
> fly.
>
> Bruce
>
>
>
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>
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