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Assembly Line by subatomicsushi Assembly Line by subatomicsushi
This is a cellular automaton which I designed, which I call Assembly Line. It's good at making repetitive grids of structures. The most common structure that results from a randomized seed area is the trunk, visible at the top. The trunk produces conveyor belts, and those fill with period-three oscillators which I call sewing machines. A handful of other patterns (not shown) also emerge from time to time. There are a few spaceships and various puffers.

The automaton works in a similar way to Conway's Game of Life, in which the value of a cell is determined by its previous state and the sum of its eight neighbours. However, Assembly Line has not two but four states (represented by integer values 0-3). In this image, the states are black (0), green (1), dark green (2) and red (3). (Never mind the gray cells, that just shows what the optimization is doing in the program I made to run this.)

The rules for this automaton are:
----- 0 ------------------------------------------------------ 24
[0] {0,0,0,0,1,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
[1] {0,0,0,0,0,2,1,1,1,1,1,1,0,1,1,1,3,1,1,1,1,1,0,0,0}
[2] {0,0,0,0,0,3,2,2,2,2,2,2,1,2,0,2,2,2,2,2,2,2,2,0,0}
[3] {0,0,0,0,0,3,3,3,3,3,3,3,2,3,3,3,1,3,3,3,3,3,2,1,0}
where [x] is the current value of a cell, and 0 - 24 is the sum of the cell's neighbours.
:iconbluefish01:
bluefish01 Featured By Owner Feb 24, 2013
...It DOES look like a sewing machine!
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:iconsubatomicsushi:
subatomicsushi Featured By Owner Feb 25, 2013  Hobbyist Digital Artist
(I emailed you a sample program.)
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:iconsubatomicsushi:
subatomicsushi Featured By Owner Feb 24, 2013  Hobbyist Digital Artist
Even more so when you see it running. There's a little thing on the end of each one that goes JUG JUG JUG up and down.
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February 24, 2013
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