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BoxCar2D - neat little genetic algorithm demonstration

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Author Topic:   BoxCar2D - neat little genetic algorithm demonstration
Dr Jack
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From: Immigrant in the land of Deutsch
Joined: 07-14-2003
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Message 1 of 51 (604815)
02-15-2011 7:20 AM

www.boxcar2d.com
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Basically someone's hooked up a 2d physics library to a genetic algorithm to evolve little "cars" that race across a random 2d landscape. It's really quite a neat demonstration of the efficacy of evolution in a simply toy environment.
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Dr Jack
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Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.4

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Message 9 of 51 (605121)
02-17-2011 5:29 AM 		Reply to: Message 8 by Dr Adequate
02-17-2011 2:16 AM

I used the standard setup except that I changed the maximum wheel number to five.
​
Did you drop the wheel frequency as well? If not, that's probably why yours lagged behind. I presume it actually converged to a 2 wheel design?
​
Have you guys played with the different landscapes yet?
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Dr Jack
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Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.4

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Message 15 of 51 (605203)
02-17-2011 4:33 PM 		Reply to: Message 14 by Taq
02-17-2011 1:28 PM

Re: ID challenge?
Check the 'Best Cars' page and its comments...
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Dr Jack
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Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.4

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Message 25 of 51 (605261)
02-18-2011 3:40 AM 		Reply to: Message 19 by Dr Adequate
02-17-2011 11:03 PM

By now, I think you guys have more experience of what this will evolve than I do
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Dr Jack
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Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.4

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Message 47 of 51 (605603)
02-21-2011 4:29 AM 		Reply to: Message 46 by Minnemooseus
02-21-2011 4:20 AM

Re: I got to 1135.3 at 2:02 (and ran ~190 generations)
Minnemooseus writes:
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I plugged my best effort (evolved from the defaults) into a zero mutations, 2 population, default track setup. There are still some tiny variables in there, you get different results in different tries. I was only able to get these tries to a ~900 best. I couldn't repeat my 1135.3 at 2:02.
​
Are you running with the 'default' track option? In that case, each track is random so the peak fitness will be different.
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Dr Jack
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Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003
Member Rating: 8.4

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Message 49 of 51 (606187)
02-24-2011 4:12 AM

Version 3.0 posted
Ah! I see he has updated the software, it's now posting as version 3.0 - not sure what's new yet though.
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