Question

我一直在学习如何使用pythonprogramming.net中的PyGame。我目前正在窗口上移动图像：

https://pythonprogramming.net/pygame-tutorial-moving-images-key-input/?completed=/displaying-images-pygame/

这是我正在运行的代码，以防您在检查时网站关闭。出于某种原因，我不知道为什么，汽车图像不动。当我关注视频时，我已经输入了所有内容，当我发现它不起作用时，我复制并粘贴了仍然无法获得预测的性能。我打印出要调试的事件（这是我添加的唯一一行，而不是从网站复制的代码）。

import pygame

pygame.init()

display_width = 800
display_height = 600

gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption('A bit Racey')

black = (0,0,0)
white = (255,255,255)

clock = pygame.time.Clock()
crashed = False
carImg = pygame.image.load('racecar.png')

def car(x,y):
    gameDisplay.blit(carImg, (x,y))

x =  (display_width * 0.45)
y = (display_height * 0.8)
x_change = 0
car_speed = 0

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

        ############################
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                x_change = -5
            elif event.key == pygame.K_RIGHT:
                x_change = 5
        if event.type == pygame.KEYUP:
            if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
                x_change = 0
        ######################
    ##
    x += x_change
   ##         
    gameDisplay.fill(white)
    car(x,y)

    print(event) # added for debugging

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

pygame.quit()
quit()

我使用了Spyder，但是我的窗户突然冻结了，我不得不在我的Mac上退出Spyder。我切换到PyCharm和终端，发现两者都没有冻结，但仍然没有移动。

终端上打印出来的是：

libpng warning: iCCP: known incorrect sRGB profile
<Event(4-MouseMotion {'pos': (364, 569), 'rel': (364, 569), 'buttons': (0, 0, 0)})>
<Event(5-MouseButtonDown {'pos': (364, 569), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (364, 569), 'button': 1})>
<Event(4-MouseMotion {'pos': (491, 27), 'rel': (127, -542), 'buttons': (0, 0, 0)})>
^[[D^[[D^[[D^[[D^[[D^[[D^[[D^[[D<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
^[[D^[[D^[[D<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
^[[D^[[D^[[D^[[C^[[C<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(6-MouseButtonUp {'pos': (491, 27), 'button': 1})>
<Event(5-MouseButtonDown {'pos': (491, 27), 'button': 1})>
<Event(12-Quit {})>

我理解代码的第一行是来自How do I disable the libpng warning? (python, pygame)的警告，不应以这种方式影响代码。

Answer 1

抱歉已经有一段时间了，我猜他们现在已经改变了一些东西，因为我正在阅读文档。它改变了很多我彻底的倾诉。我想指出的一件事是在比赛开始前填写背景是一个好习惯。我会更多地了解这一点，我将自己进行测试。

编辑：我刚测试过，对我来说它完全正常。它可能是你的键盘布局，但我唯一想到的是，你选择了窗口吗？

Pygame：图像不动

1 个答案: