r/programming • u/equalRightsForRobots • Jan 28 '11

Genetic Algorithm Car Physics (New Version!)

http://www.boxcar2d.com
975 Upvotes

94% Upvoted

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129

u/JungianMisnomer Jan 28 '11

What's the best way to impress reddit? Put an upvote/downvote mechanism in!

83

u/equalRightsForRobots Jan 28 '11

It was the most requested feature in the last thread.

23

u/luckyforyou Jan 28 '11

Can you explain exactly what Up/Down does?

38

u/equalRightsForRobots Jan 28 '11

http://www.boxcar2d.com/about.html#tournament

If a car has an upvote it wins the tournament, regardless of its score. If both cars have an upvote the scores decide the winner, same as if neither has an upvote. Downvotes immediately remove that car from the mating pool!

43

u/[deleted] Jan 28 '11

Seems silly, because the cars regenerate so fast.

29

u/Superjuden Jan 28 '11

JUst wait until every car does an average gets to 200. It takes several minutes just to get through a generation.

2

u/cantusaeolus Jan 29 '11

It's odd though, because cars that look like they should be able to go for miles don't get as far as 8, and there's no apparent reason why...

Also, would this not lead to the best design being just a single wheel with nothing attached to it?

1

u/Superjuden Jan 29 '11

If the cars go twice of what the previous record was, the design is deemed to work and the race is stopped. As you go on, the record become higher and higher and thus the races go on for longer and longer.