def test_count_neighbors(rules, world, world_single):
gl = GameOfLife(rules, world_single)
neighbors = gl.get_neighbors((1, 1))
count = gl.count_neighbors(neighbors)
assert count == 3
gl.world = world
neighbors = gl.get_neighbors((0, 0))
count = gl.count_neighbors(neighbors)
assert count == 2
def birth(gl: GameOfLife, value: int, index: Tuple[int, int]):
neighbors = gl.get_neighbors(index)
count = gl.count_neighbors(neighbors)
if count == 3:
return 1
return value
def underpopulation(gl: GameOfLife, value: int, index: Tuple[int, int]):
neighbors = gl.get_neighbors(index)
count = gl.count_neighbors(neighbors)
if count <= 2:
return 0
return value
def overpopulation(gl: GameOfLife, value: int, index: Tuple[int, int]):
neighbors = gl.get_neighbors(index)
count = gl.count_neighbors(neighbors)
if count > 3:
return 0 if value <= 0 else value - 1
return value
