circuitpython/examples/conwaylife.py

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# do 1 iteration of Conway's Game of Life
def conway_step():
for x in range(128): # loop over x coordinates
for y in range(32): # loop over y coordinates
# count number of neigbours
num_neighbours = (lcd.get(x - 1, y - 1) +
lcd.get(x, y - 1) +
lcd.get(x + 1, y - 1) +
lcd.get(x - 1, y) +
lcd.get(x + 1, y) +
lcd.get(x + 1, y + 1) +
lcd.get(x, y + 1) +
lcd.get(x - 1, y + 1))
# check if the centre cell is alive or not
self = lcd.get(x, y)
# apply the rules of life
if self and not (2 <= num_neighbours <= 3):
lcd.reset(x, y) # not enough, or too many neighbours: cell dies
elif not self and num_neighbours == 3:
lcd.set(x, y) # exactly 3 neigbours around an empty cell: cell is born
# randomise the start
def conway_rand():
lcd.clear() # clear the LCD
for x in range(128): # loop over x coordinates
for y in range(32): # loop over y coordinates
if pyb.rand() & 1: # get a 1-bit random number
lcd.set(x, y) # set the pixel randomly
# loop for a certain number of frames, doing iterations of Conway's Game of Life
def conway_go(num_frames):
for i in range(num_frames):
conway_step() # do 1 iteration
lcd.show() # update the LCD
pyb.delay(300)
# PC testing
import lcd
import pyb
lcd = lcd.LCD(128, 32)
conway_rand()
conway_go(1000)