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automata

It was only a matter of time before I made some

hashart based on Elementary cellular automata. This piece seeds the canvas to make things interesting, and reuses a lot of the code from

turing to draw the bits. I opted to not show a legend on the page because I felt it to be distracting.

An automata piece on my e-ink screen with a 1” paper border and a wooden frame

seed

rule

seed

5f5bdb76

size

d078

unused

c43b8ac0064e4a0164612b1fce77c869345bfc94c75894edd3

source

Description

Begin with an empty row of 0's and populate the center with a bitstring taken from seed. Build a table by converting rule to binary, and pairing each bit with a number starting from 7 and decreasing to 0. For our above seed, rule 49 will generate the following table:

seq	111	110	101	100	011	010	001	000
val	0	0	1	1	0	0	0	1

For each bit in the row, generate a three-bit string using the bit to its left, the bit itself, and the bit to its right. Look up this value in the table above, and assign val as the new bit. Finally draw the resulting row on the next line of the canvas.