RE: Colorunder and setc

["Gary McCallister" <mccallis@xxxx>]

I am too dumb to even think of checking the color! :-( Thanks for the help.

>>> wpetti@xxxx 11/20/01 10:36AM >>>
You are in luck! This is a case where the answer is
absurdly simple.
I too was puzzled until I dragged your turtle onto a yellow
rectangle and typed in the command center:

show colorunder

And what did the computer report????

44

So there's your problem. The poor cow is looking for color
45 and only finding color 44.

Do you want your cow to get cured after a certain amount of
time? You could modify the last lines of your code:

if colorunder =3D 44 [setc 25 resett]
if timer > 50 [setc 15]
graze
end

That way if the cow gets away from the parasites and stays
away for at least five seconds, he is restored to good
health. (Of course you would probably want to increase the
length of time if you use this idea.)

Wendy


> -----Original Message-----
> From: Gary McCallister [mailto:mccallis@xxxx]=20
> Sent: Tuesday, November 20, 2001 11:18 AM
> To: MWcybercourse@xxxxxxxxxxxxxxx=20
> Subject: Colorunder and setc
>
>
> I just began to try and develop a
> simulation, in Microworlds Pro for a grazing
> animal and how they might pick up ingestable
> parasites. I marked certain areas of the
> "pasture" to indicate parasite contamination then
> attempted to use color under to change the color
> of the "cow" from normal-red to infected-orange.
> However, the cow doesn't change color. I am not
> seeing what I am doing wrong on what I thought
> was a simple program. The first rough draft is attached.
>
>
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