Mario pygame code snippet returns None to 'pressed' disabling controls

[ccozort]

In the Mario game code snippet the run function currently passes None into 'pressed' dict. disabling controls. Revised run function below fixes. Per PG documentation, get_pressed() isn't the best way to get text entry from user: https://www.pygame.org/docs/ref/key.html#pygame.key.get_pressed

RUNNING = True def run(screen, images, mario, tiles): clock = pg.time.Clock() global RUNNING current_key = None while RUNNING: for event in pg.event.get(): if event.type == pg.QUIT: RUNNING = False keys = {pg.K_UP: D.n, pg.K_RIGHT: D.e, pg.K_DOWN: D.s, pg.K_LEFT: D.w} if event.type == pg.KEYDOWN: current_key = event.key else: current_key = None pressed = {keys.get(current_key)} update_speed(mario, tiles, pressed) update_position(mario, tiles) draw(screen, images, mario, tiles, pressed) clock.tick(28)

Old version:

def run(screen, images, mario, tiles):

clock = pg.time.Clock()

while all(event.type != pg.QUIT for event in pg.event.get()):

keys = {pg.K_UP: D.n, pg.K_RIGHT: D.e, pg.K_DOWN: D.s, pg.K_LEFT: D.w}

pressed = {keys.get(ch) for ch, is_prsd in enumerate(pg.key.get_pressed()) if is_prsd}

update_speed(mario, tiles, pressed)

update_position(mario, tiles)

draw(screen, images, mario, tiles, pressed)

clock.tick(28)