在Pygame中按住键时如何使角色移动？

Question

Right now, I have this:

for event in pygame.event.get(): 
   if event.type == pygame.QUIT: 
        done = True 
    keys = pygame.key.get_pressed()
    # moves hero with key presses 
    if keys[pygame.K_LEFT] == 1:
        hero.goLeft()
    if keys[pygame.K_RIGHT] == 1:
        hero.goRight()
    elif keys[pygame.K_UP] == 1:
        hero.goUp()
    elif keys[pygame.K_DOWN] == 1:
        hero.goDown()

However, I'm still having to press the key multiple times to move the character. Does anyone know why or have a different solution?

Thanks!

Answer 1

keys = pygame.keys.get_pressed() and the following lines should not be inside of the event loop, otherwise it's called only once for each event that gets added to the event queue and you won't get continuous movement. Just dedent these lines.

for event in pygame.event.get():
    if event.type == pygame.QUIT:
        done = True

keys = pygame.key.get_pressed()
# moves hero with key presses
if keys[pygame.K_LEFT]:
    hero.goLeft()
elif keys[pygame.K_RIGHT]:
    hero.goRight()
if keys[pygame.K_UP]:
    hero.goUp()
elif keys[pygame.K_DOWN]:
    hero.goDown()

You can also just check if keys[pygame.K_LEFT]: instead of if keys[pygame.K_LEFT] == 1: .