[Squeakland] spiral

Shashank Date sdate at everestkc.net
Sat Dec 11 06:15:22 PST 2004

Phil Firsenbaum wrote:

> If you looked at the script, I have a test which looks to see when 
> Birdie's y coordinate is < 100. 

I did not get the attachment and so could not look at the script. Is the 
script available somwhere on the web?

> When it is the script is paused and the drawing of the spiral stops.
> In the running of the project Birdie begins in the center of the 
> screen where its y coordinate is 390. As it moves out from the center 
> y gets larger when it moves towards the top of the screen and smaller 
> when it moves towards the bottom. I arbitrarily chose to look at the 
> value of y when it's approaching the bottom of the screen.

Oh, I see. I get the idea, but am still not sure how to "arbitrarily" 
choose to look at the value. Are you using the "random" number?

> Of course, there are other approaches one could take to stop the 
> spiral...

Yes, and the one I am interested in, is the one which allows us to 
control the number of times a certain script gets executed... a looping 
mechanism if you will.

> Phil

-- Shashank

> On Dec 9, 2004, at 6:06 PM, Shashank Date wrote:
>> Hello,
>> Phil Firsenbaum wrote:
>>> Randy,
>>> I was playing with polygons and spirals last year and created the 
>>> attached scripts. They use a variable (size1) for the length of the 
>>> sides and I start Birdie in the center of the screen.
>> Is there a way to limit the loops of the spiral to some finite number,
>> in eToys?
>> Something like "repeat 10 times" (as in Logo)?
>> Thanks,
>> -- Shashank

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