“module”对象没有属性“game\u display”

Question

错误：

Traceback (most recent call last):
      File "/home/hayden/Desktop/Platformer/platformer.py", line 65, in <module>
        game_loop()
      File "/home/hayden/Desktop/Platformer/platformer.py", line 58, in game_loop
        char(char_x,char_y)
      File "/home/hayden/Desktop/Platformer/platformer.py", line 23, in char
        pygame.game_display.blit(size,(x,y))
    AttributeError: 'module' object has no attribute 'game_display'
    >>> 

代码：

^{pr2}$

我不知道为什么我得到这个错误和黑屏。为了帮助您更好地理解代码，我试图创建一个二维平台。我是新的编程和游戏，所以请尽量不要给一个先进的解释。对于其他类似的错误，您似乎需要导入一些东西，但是pygame是导入的。在

Answer 1

这是修改过的代码。有更多的错误，但你必须试着自己去解决，只有当你不能独自完成时才去问。:) 当你调用一个函数时，你必须向它发送值和参数。函数不会自动执行此操作。看看我所做的改变。在

import pygame
from pygame import *

pygame.init()

display_width = 800
display_height = 600

char_width = 128
char_height = 99

char_sprite = pygame.image.load("test.png")

framerate = 30

gravity = 5

screen = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption("Platformer")
clock = pygame.time.Clock()

def char(x,y, screen):
    size = pygame.transform.scale(char_sprite,(128,99))
    screen.blit(size,(x,y))

def close():
    pygame.quit()
    quit()

def game_loop(screen, display_width, display_height):

    char_x = display_width/2
    char_y = display_height/2
    char_x_change = 0
    char_y_change = 0
    char_speed = 5

    game_exit = False
    while not game_exit:

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                close()
            if event.type == pygame.KEYDOWN:
                if event.type == pygame.K_W:
                    char_y_change -= char_speed
                if event.type == pygame.K_S:
                    char_y_change += char_speed
                if event.type == pygame.K_A:
                    char_x_change -= char_speed
                if event.type == pygame.K_D:
                    char_x_change += char_speed

        screen.fill((0,0,255))

        char_x += char_x_change
        char_y += char_y_change
        char_y -= gravity
        char(char_x,char_y, screen)

        char_y -= gravity

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

game_loop(screen, display_width, display_height)

希望这有帮助。在