def demo_path(puzzle, path):
print("Enter speed (ms):")
ms = util.read_number()
sleep_time = ms / 1000
print(puzzle_to_str(puzzle))
path_len = len(path)
while path:
if sleep_time < 0:
util.hit_enter()
else:
time.sleep(sleep_time)
util.clear_screen()
puzzle = puz.apply_action(puzzle, path[0])
path = path[1:]
print(puzzle_to_str(puzzle))
print()
print(path_len - len(path), "/", path_len)
solved_tiles = puz.solved_tiles(puzzle)
print(len(solved_tiles), solved_tiles)
def expand(self):
return [Node(puzzle.apply_action(self.p, a),
self.hist + [a], self.heuristic)
for a in self.useful_actions()]