Question

我正在尝试制作游戏，但你可以继续发送垃圾邮件＆＃34; w＆＃34; （跳跃）无限高度，当你试图制作一个平台游戏时非常糟糕。这是我的全部代码：

GRAVITY = .2

diedorgameover = False
while not diedorgameover:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            diedorgameover = True

        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_a:
                x_change = -5
            elif event.key == pygame.K_d:
                x_change = 5
            elif event.key == pygame.K_s:
                y_change = 5
            elif event.key == pygame.K_w:
                y_change = -5

        if event.type == pygame.KEYUP:
            if event.key == pygame.K_a or event.key == pygame.K_d:
                x_change = 0
            if event.key == pygame.K_s or event.key == pygame.K_w:
                y_change = 0

    #adding gravity to y_value
    y_change += GRAVITY 
    x += x_change
    y += y_change

    if y >= gameDisplay.get_height() - 68:
        y = gameDisplay.get_height() - 68
        y_change = 0

    #draw everything   
    gameDisplay.blit(background_image,(0,0))
    red(x,y)

    pygame.display.update()
    clock.tick(60)


pygame.quit()
quit()

如果您对此问题有任何见解，我将非常感激。

Answer 1

如果玩家触地，您可以定义设置为on_ground的{{1}}变量。当用户想要跳转时（按'w'），您首先检查True，然后更改if on_ground:并将y_change设置为on_ground。

False

同时删除这些行，否则如果释放该键，播放器可以在空中停止：

import pygame


pygame.init()

gameDisplay = pygame.display.set_mode((800, 600))
clock = pygame.time.Clock()

GRAVITY = .5

player_img = pygame.Surface((30, 50))
player_img.fill((40, 120, 200))
x = 100
y = 500
x_change = 0
y_change = 0
on_ground = False

diedorgameover = False
while not diedorgameover:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            diedorgameover = True
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_a:
                x_change = -5
            elif event.key == pygame.K_d:
                x_change = 5
            elif event.key == pygame.K_s:
                y_change = 5
            elif event.key == pygame.K_w:
                # Only jump if the player is on the ground.
                if on_ground:
                    y_change = -12
                    on_ground = False
        elif event.type == pygame.KEYUP:
            if event.key == pygame.K_a or event.key == pygame.K_d:
                x_change = 0

    y_change += GRAVITY
    x += x_change
    y += y_change

    # If the player is on the ground.
    if y >= gameDisplay.get_height() - 68:
        y = gameDisplay.get_height() - 68
        y_change = 0
        on_ground = True

    gameDisplay.fill((30, 30, 30))
    gameDisplay.blit(player_img, (x, y))

    pygame.display.update()
    clock.tick(60)


pygame.quit()

如何修复pygame中的无限跳转错误？

1 个答案: