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- From: michaelr@spider.co.uk (Michael S. A. Robb)
- Newsgroups: comp.theory.cell-automata
- Subject: I saw these really colourful cellular automata - what are they?
- Message-ID: <1993Jan22.184410.18894@spider.co.uk>
- Date: 22 Jan 93 18:44:10 GMT
- Organization: Spider Systems Limited, Edinburgh, UK.
- Lines: 40
-
-
- While sorting out my collection of video-taped programmes, I came
- across one of those weekly science programmes (Equinox) which was
- covering Cellular Automata.
-
- Several guest-stars on the programme were Bill Joy (who was running
- genetic-algorithms on a Connection Machine) and some MIT researchers
- describing how they managed to decode the algorithm used by ants to
- decide which direction to move in.
-
- Of particular interest to my were several very colourful "life"-like
- algorithms which seemed to have cells with more than 2 states. The
- first algorithm seemed to have three different states and had cells
- which could move in the following pattern:
-
- 1 2 3 Generation
- ........ ........ ........
- ..*@.... ...*@... ....*@.. These shapes seemed to be able to move in
- ...*@... ....*@.. .....*@. any of four directions.
- ...*@... ....*@.. .....*@.
- ........ ........ .......
-
- Another algorithm seemed to be able to handle a universe with 256
- different states of cell, with the colony growing until the entire
- universe was occupied. Then the screen would seem to colour cycle in
- a swirling pattern.
-
- Does anyone know what algorithms are being used and/or any references
- I could check up?
-
- PS. Did MIT ever publish the algorithm that ants use to move around?
-
- Cheers,
-
- -- Michael
- --
- | Michael S. A. Robb | Tel: +44 31 554 9424 | "..The problem with bolt-on
- | Software Engineer | Fax: +44 31 554 0649 | software is making sure the
- | Spider Systems Limited | E-mail: | bolts are the right size.."
- | Edinburgh, EH6 5NG | michaelr@spider.co.uk | - Anonymous
-