A short script to generate stuff based on binary cellular automata.

Binary cellular automata consist of a binary start vector, i.e. a vector in which some bits are 1 and others are 0, and a set of rules by which the vector evolves over time.

Rules are created by converting a simple integer number to an 8-bit vector. For example, the binary representation of the number 30 in 8 bits is '01111000'.

The binary automaton evolves by converting the current vector into trigrams, and converting each of these trigrams into a 3-bit integer representation.

For example, given the rule '01111000' above, the trigram '000' would produce a '0' in the position below the middle position of the trigram, while '010' would produce a '1' below the middle position.

from ruly import rule

# Create wolfram's classic rule 30 automaton.
result = rule(150, 75, [75], 30)

from matplotlib import pyplot as plt
plt.imshow(result)
plt.show()