Re: breveCreatures screensaver

Jon,

The screen saver is very pretty -- I've had it running for several days 
now.

I do have one suggestion: the creatures sometimes start their run 
flying through the air and the fitness test begins while they're still 
in the air (I think this happens when they are long and part of them 
starts in the floor and the physics rockets them out at high velocity, 
or perhaps an instability due to random join setting).  The result is 
evolution toward long, thin "fliers" that travel long distances simply 
because they started partially embedded in the floor (or whatever 
initial condition sends them sailing through the air).  (I'm aware that 
this may not be guaranteed to happen -- if a population starts out 
avoiding this condition, there may be a much lower probability of it 
occurring later, and so perhaps no one else has seen this yet.)  The 
fix would be to start the fitness test after they've landed stably on 
the ground.  Then the search would be over fitter walkers rather than 
projectiles.  (Not that I have anything against projectile locomotion, 
I just think evolving a walker would be more interesting...)

-Clay

On Oct 31, 2005, at 6:50 AM, jon klein wrote:

> Hi all,
> I'm pleased to announce the release of a new breve-based screensaver 
> for Mac OS X:
> breveCreatures.  The screensaver features virtual creatures evolving 
> realistic
> bodies and locomotion behaviors.
>
>     http://www.spiderland.org/breve/breveCreatures.html
>
> - jon klein
> _______________________________________________
> breve mailing list
> [email protected]
> http://lists.spiderland.org/mailman/listinfo/breve
>
>
Clayton T. Morrison
Postdoctoral Research Fellow
Center for Research on Unexpected Events (CRUE)
USC Information Sciences Institute
[email protected]
(310) 448-8430

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