conway

__author__ = 'rebecca'

# Literal version of the game of life.

import itertools as it


def next_round(the_world, updated_world):
    the_world.update(updated_world)


def togglecell(x, y):

    if the_world[x, y] == False:
        the_world[x, y] = True
    else:
        the_world[x, y] = False


def neighbors(x, y):

    neighbors = []
    for i, j in it.product(range(x - 1, x + 2), range(y - 1, y + 2)):
        if i >= 0 & i <= (wide - 1):
            if j >= 0 & j <= (high - 1):
                if (i, j) != (x, y):
                    try:
                        neighbors.append(the_world[(i,j)])
                    except KeyError:
                        pass # if the_world[(i, j)] does not exist, skip it.
    return neighbors


def checkneighbors(x, y):

    live_neighbors = neighbors(x, y).count(True)

    if live_neighbors < 2:
        updated_world.update({(x, y): False})
    elif live_neighbors > 3:
        updated_world.update({(x, y): False})
    elif live_neighbors == 2:
        updated_world.update({(x, y): True})
    elif live_neighbors == 3:
        updated_world.update({(x, y): True})
    else:
        print "Something went wrong!"

# Initialize.
wide = int(raw_input("How wide?\n>"))
high = int(raw_input("How high?\n>"))

the_world = {}
updated_world = {}

for i, j in it.product(range(wide), range(high)):
    the_world.update({(i,j): False})

for i, j in it.product(range(wide), range(high)):
    checkneighbors(i, j)

print the_world

next_round(the_world, updated_world)

print the_world