pygame: self.screen AttributeError：...没有属性'screen‘
pygame: self.screen AttributeError：...没有属性'screen‘
提问于 2015-05-16 03:51:43
我正在尝试学习一些pygame编程，所以我找到了pivader项目，这应该是学习python/pygame的一个很好的开始。这里的链接是：pivaders
所以我现在不想做整个游戏。我只是想完成游戏菜单:这意味着我想要开始屏幕，在按下空格键后，我想进入游戏屏幕。
这里是我的代码
import pygame, random
RES = (800, 600)
class GameState:
pass
class Game(object):
def __init__(self):
pygame.init()
pygame.font.init()
self_screen = pygame.display.set_mode([RES[0], RES[1]])
self.intro_font = pygame.font.Font(
'data/Orbitracer.ttf', 72)
self.intro_screen = pygame.image.load(
'/home/pi/pivaders/data/graphics/start_screen.jpg')
self.background = pygame.image.load(
'/home/pi/pivaders/data/graphics/Space-Background.jpg')
GameState.end_game = False
GameState.start_screen = True
def control(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
GameState.start_screen = False
GameState.end_game = True
if event.type == pygame.KEYDOWN \
and event.key == pygame.K_ESCAPE:
if GameState.start_screen:
GameState.start_screen = False
GameState.end_game = True
else:
GameState.start_screen = True
self.keys = pygame.key.get_pressed()
if self.keys[pygame.K_SPACE]:
if GameState.start_screen:
GameState.start_screen = False
def splash_screen(self):
while GameState.start_screen:
self.screen.blit(self.intro_screen, [0, 0])
self.screen.blit(self.intro_font.render(
"PIVADERS", 1, WHITE), (265, 128))
self.screen.blit(self.intro_font.render(
"PRESS SPACE TO PLAY", 1, WHITE), (284, 191))
pygame.display.flip()
self.control()
def refresh_screen(self):
self.all_sprite_list.draw(self.screen)
self.screen.blit(self.background, [0, 0])
self.clock.tick(self.refresh_rate)
def main_loop(self):
while not GameState.end_game:
while not GameState.start_screen:
self.control()
self.refresh_screen()
self.splash_screen()
pygame.quit()
if __name__ == '__main__':
pv = Game()
pv.main_loop()现在我得到了这个错误：
Traceback (most recent call last):
File "/home/pi/pivaders/MenuTest.py", line 65, in <module>
pv.main_loop()
File "/home/pi/pivaders/MenuTest.py", line 60, in main_loop
self.splash_screen()
File "/home/pi/pivaders/MenuTest.py", line 42, in splash_screen
self.screen.blit(self.intro_screen, [0, 0])
AttributeError: 'Game' object has no attribute 'screen' 我发现了关于那个错误和屏幕/ self.screen的其他问题，但我不知道如何使用这些新信息来解决我的问题。我不知道为什么会在这里弹出AttributeError:我从来没有用过没有自己的屏幕..
回答 3
Stack Overflow用户
发布于 2015-05-16 03:56:52
您的__init__方法中有一个拼写错误。
self_screen = pygame.display.set_mode([RES[0], RES[1]])应该是
self.screen = pygame.display.set_mode([RES[0], RES[1]])请注意self_screen和self.screen之间的区别。
Stack Overflow用户
发布于 2015-05-16 04:16:26
好了，现在我得到了start_screen，但空格并不是我想的那样:3我删除了"refresh_screen“方法，因为我猜它在这里没有用。我还添加了全局变量"WHITE = (255,255,255)“，因为我忘记了这一点。当然，我用self.screen替换了self_screen。
。
现在，我必须找出缺少了什么才能通过按空格键来改变图片。如果我发现了，我会写另一个答案的。
Stack Overflow用户
发布于 2015-05-16 15:11:30
好了，现在我得到了我想要的东西。如果我启动，start_screen出现在800x600的窗口中。按下空格键后，我进入ingame_screen。使用ESC，我返回到开始屏幕，然后再次使用ESC来关闭程序。
我怀念这种平静的代码：
def refresh_screen(self):
pygame.display.flip()
self.screen.blit(self.background, [0, 0])
def main_loop(self):
while not GameState.end_game:
while not GameState.start_screen:
self.control()
self.refresh_screen() #change picture
self.splash_screen()
pygame.quit()下面是完整的代码(我得到了图片，我的问题中有来自Git链接的Orbitracer.ttf )：
import pygame, random
RES = (800, 600)
WHITE = (255, 255, 255)
class GameState:
pass
class Game(object):
def __init__(self):
pygame.init()
pygame.font.init()
self.screen = pygame.display.set_mode([RES[0], RES[1]])
self.intro_font = pygame.font.Font(
'data/Orbitracer.ttf', 72)
self.intro_screen = pygame.image.load(
'/home/pi/pivaders/data/graphics/start_screen.jpg')
self.background = pygame.image.load(
'/home/pi/pivaders/data/graphics/Space-Background.jpg')
GameState.end_game = False
GameState.start_screen = True
def control(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
GameState.start_screen = False
GameState.end_game = True
if event.type == pygame.KEYDOWN \
and event.key == pygame.K_ESCAPE:
if GameState.start_screen:
GameState.start_screen = False
GameState.end_game = True
else:
GameState.start_screen = True
self.keys = pygame.key.get_pressed()
if self.keys[pygame.K_SPACE]:
if GameState.start_screen:
GameState.start_screen = False
def splash_screen(self):
while GameState.start_screen:
self.screen.blit(self.intro_screen, [0, 0])
self.screen.blit(self.intro_font.render(
"PIVADERS", 1, WHITE), (175, 128))
self.screen.blit(self.intro_font.render(
"PRESS SPACE TO PLAY", 1, WHITE), (175, 191))
pygame.display.flip()
self.control()
def refresh_screen(self):
pygame.display.flip()
self.screen.blit(self.background, [0, 0])
def main_loop(self):
while not GameState.end_game:
while not GameState.start_screen:
self.control()
self.refresh_screen()
self.splash_screen()
pygame.quit()
if __name__ == '__main__':
pv = Game()
pv.main_loop()页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/30267686
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