python - 如何让游戏角色(用户) Action 流畅？

Question

在我的游戏中，我已将角色设置为移动。它的设置方式是:

if game_over_state == False:
    if event.type == pygame.KEYDOWN:
        if event.key == pygame.K_ESCAPE:
            pause = True
            game_paused()
        if event.key == pygame.K_LEFT:
            player_x_change = -2
        if event.key == pygame.K_RIGHT:
            player_x_change = 2
        if event.key == pygame.K_UP:
            player_y_change = -2
        if event.key == pygame.K_DOWN:
            player_y_change = 2

    if event.type == pygame.KEYUP:
        if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT
            player_x_change = 0
        if event.type == pygame.KEYUP:
            player_y_change = 0

是否可以将其更改为 while 函数或其他函数，以便在释放箭头键时角色不会停止移动(即使按住另一个箭头键)？

Answer 1

问题是 event.type == pygame.KEYUP 中的条件。

if event.type == pygame.KEYUP:
   # [...]    

   if event.type == pygame.KEYUP:
        player_y_change = 0

只需重置 player_x_change 或 player_y_change，具体取决于释放的按键:

if game_over_state == False:
    if event.type == pygame.KEYDOWN:
        if event.key == pygame.K_ESCAPE:
            pause = True
            game_paused()
        if event.key == pygame.K_LEFT:
            player_x_change = -2
        if event.key == pygame.K_RIGHT:
            player_x_change = 2
        if event.key == pygame.K_UP:
            player_y_change = -2
        if event.key == pygame.K_DOWN:
            player_y_change = 2

    if event.type == pygame.KEYUP:
        if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT
            player_x_change = 0
        if event.key == pygame.K_UP or event.key == pygame.K_DOWN:
            player_y_change = 0

<小时/>

如果你想同时处理按键，这意味着你想在按下 2 个键时移动玩家对角线，并且你不希望玩家在松开 1 个键时停止，那么我建议使用 pygame.key.get_pressed()而不是 KEYDOWN 事件:

for event in  in pygame.event.get():
    if game_over_state == False:
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE:
                pause = True
                game_paused()

if game_over_state == False:

    keys = pygame.key.get_pressed()

    player_x_change, player_y_change = 0, 0
    if keys[pygame.K_LEFT]:
        player_x_change -= 2
    if keys[pygame.K_RIGHT]:
        player_x_change += 2
    if keys[pygame.K_UP]:
        player_y_change -= 2
    if keys[pygame.K_DOWN]:
        player_y_change += 2