我正在学习 python 和 pygame。在我的代码中找到问题时,我有点挣扎。当我按住一个键并同时按下另一个键,然后以我按下它们的相同顺序放开它们时,有时会使我的小角色朝相反的方向向后移动。
这是我正在努力解决的代码:
while running:
for event in pygame.event.get():
if event.type == KEYDOWN:
keystate = pygame.key.get_pressed()
if event.type == pygame.QUIT: # if user clicked close
running = False # flag done to exit this loop
# all game logic / controls should go below this comment
elif event.type == KEYDOWN:
if keystate[K_SPACE]:
print ('pressed space')
player.move_up = True
elif keystate[K_RIGHT]:
print ('pressed right')
player.move_right = True
elif keystate[K_LEFT]:
print ('pressed left')
player.move_left = True
elif event.type == KEYUP:
if keystate[K_SPACE]:
print ('released space')
player.move_up = False
elif keystate[K_RIGHT]:
print ('released right')
player.move_right = False
elif keystate[K_LEFT]:
print ('released left')
player.move_left = False
if player.move_up:
player.pos[1] -= 3
if player.move_up == False:
if player.pos[1] < ground_level:
player.pos[1] +=3
if player.move_right:
player.pos[0] += 5
if player.move_left:
player.pos[0] -= 5`
到目前为止,我还没有任何实际的物理知识,他只是飞来飞去。但没关系,我只是想解决我已经遇到的问题。