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Tag: cellular automata

Automata I

2008-09-23 John Winkelman

Cellular Automaton

Click here to run the automata.

Once upon a time I did something like this, maybe back in 2003 or 2004. I recently re-arranged my bookshelves and discovered my copy of A New Kind of Science by Stephen Wolfram. So now I have caught the CA bug.

Click the application to reset it. More interaction will be coming soon.

Posted in ProgrammingTagged cellular automata, Flash comment on Automata I

What Is It With the Ants?

2003-01-09 John Winkelman

I got the idea for the Langton’s Ants experiment from Kevin Lindsey’s experiment . The code is my own, but the results were carefully double-checked against the original.

The “ant” follows four rules:

The ant toggles the color of its current square
The ant advances in the direction it is facing
If the new square is off, then the ant turns to the right by 90 degrees
If the new square is on, then the ant turns to the left by 90 degrees

Possible future riffs on this idea include multiple ants, multiple colors, and a hex/octal grid.

Posted in ProgrammingTagged cellular automata, Flash comment on What Is It With the Ants?

Back to School

2003-01-06 John Winkelman

Play .

Hypothesis: Stability in a bounded environment requires a repeating pattern.

Watch .

Posted in ProgrammingTagged cellular automata, Flash comment on Back to School

More of the Same, Yet Different

2003-01-04 John Winkelman

Still another variation as I climb toward Cellular Apotheosis. This one elegantly captures the elusive beauty of the poetically named “Rule 149”. It shouldn’t beat up any computers too badly, but it will run faster on more powerful machines. Obviously.

Posted in ProgrammingTagged cellular automata, Flash comment on More of the Same, Yet Different

More CA

2003-01-03 John Winkelman

Scott played around with my code, then I played around with his code, and this is what we did . It should be much easier on the processor than was yesterday’s experiment. Just sit back, grab a beer, and enjoy.

Posted in ProgrammingTagged cellular automata, Flash comment on More CA

C A

2003-01-02 John Winkelman

I had a productive evening yesterday playing around with Cellular Automata, in response to Stephen Wolfram’s magnum opus A New Kind of Science . I put together a CA generator which calculates 90 generations of a 60-cell grid. That’s 5400 cells. So when you click this here link , wait for a few seconds (around four on my monster PC) for the thing to finish crunching. It shouldn’t crush your computer, although I have not looked at it on a Macintosh. The blank right half of the file is where the (self explanatory) controls will go in the next iteration of the thing. It still has a few bugs which won’t be obvious unless you know what the thing is doing.

I will post the code when I am happy with it.

This evening I got all set up to start playing in Java. I will maybe have a more powerful version of the CA demo up in a couple of months.

Posted in ProgrammingTagged cellular automata, Flash comment on C A

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