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circuitpython/examples/conwaylife.py

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#import essential libraries
import pyb
lcd = pyb.LCD('x')
lcd.light(1)
# 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 neighbours
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.pixel(x, y, 0) # not enough, or too many neighbours: cell dies
elif not self and num_neighbours == 3:
lcd.pixel(x, y, 1) # exactly 3 neighbours around an empty cell: cell is born
# randomise the start
def conway_rand():
lcd.fill(0) # clear the LCD
for x in range(128): # loop over x coordinates
for y in range(32): # loop over y coordinates
lcd.pixel(x, y, pyb.rng() & 1) # 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(50)
# testing
conway_rand()
conway_go(100)