游戏结束图像未显示

如何解决游戏结束图像未显示

我正在制作一个飞船游戏，你可以控制飞船并向敌人发射子弹。我现在正在尝试在玩家和任何敌人发生碰撞时显示背景游戏，但是当我运行游戏时，背景游戏从未显示！

这是我当前的代码（有些部分被省略或替换为--snip--）：

class Spaceship(pygame.sprite.Sprite):

    def __init__(self,s,x,y):
        pygame.sprite.Sprite.__init__(self)

        self.screen = s
        self.x,self.y = x,y
        self.image = pygame.image.load("spaceship.png")
        self.image = pygame.transform.scale(self.image,(175,175))
        self.rect = self.image.get_rect()
        self.rect.center = (self.x,self.y)

    def update(self):
        self.rect.center = (self.x,self.y)


class Bullet(pygame.sprite.Sprite):

    def __init__(self,y
        self.image = pygame.image.load("bullet.png")
        self.image = pygame.transform.scale(self.image,(100,100))
        self.rect = self.image.get_rect()
        self.rect.center = (self.x,self.y)

    def update(self):
        self.y -= 5
        self.rect.center = (self.x,self.y)
        if self.y < 0:
            self.kill()


class Enemy(pygame.sprite.Sprite):

    def __init__(self,y,t):
        pygame.sprite.Sprite.__init__(self)

        self.type = t
        self.screen,self.x,self.y = s,y
        self.image = pygame.image.load("enemy.png")
        self.image = pygame.transform.scale(self.image,(235,215))
        self.rect = self.image.get_rect()
        self.rect = self.image.get_rect()
        self.rect.center = (self.x,self.y)
        self.score_given = get_enemy_given_score()[self.type]

    def update(self):
        if self.y < 0:
            self.kill()
        self.y += 3
        self.rect.center = (self.x,self.y)


class GameOverBackground(pygame.sprite.Sprite):

    def __init__(self,size=(100,100)):
        pygame.sprite.Sprite.__init__(self)

        self.screen,y
        self.size = size
        self.image = pygame.image.load("Game_Over.jpg")
        self.image = pygame.transform.scale(self.image,self.size)
        self.rect = self.image.get_rect()

    def blitme(self):
        self.screen.blit(self.image,self.rect)


bg = GameOverBackground(screen,0)

spaceship = Spaceship(screen,400,400)

bullets = pygame.sprite.Group()
enemies = pygame.sprite.Group()

clock = pygame.time.Clock()

enemy_interval = 2000  # It's in milliseconds
enemy_event = pygame.USEREVENT + 1
pygame.time.set_timer(enemy_event,enemy_interval)

score = 0

font = pygame.font.SysFont("Arial",30)
textsurface = font.render("score: {:,}".format(score),True,(0,0))

spaceship_collided = False

running = True
while running:
    --snip--

    screen.fill((255,255,255))  # DO NOT DRAW ANYTHING IN FRONT OF THIS LINE,I'M WARNING YOU

    bullets.update()

    key = pygame.key.get_pressed()
    amount = 5

    if key[pygame.K_a]:
        spaceship.x -= amount
    --snip--

    spaceship.update()

    if not spaceship_collided:
        screen.blit(spaceship.image,spaceship.rect)

    if spaceship_collided is False:
        bullets.draw(screen)
        enemies.draw(screen)

        for i in enemies:
            i.update()
            if pygame.sprite.spritecollide(i,bullets,True):
                score += i.score_given
                i.kill()

    if score >= 99999:
        score = 99999

    textsurface = font.render("score: {:,0))
    screen.blit(textsurface,(590,0))

    if pygame.sprite.spritecollide(spaceship,enemies,dokill=True):
        spaceship_collided = True
        bg.blitme()

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

有人可以帮我吗？

解决方法

条件 pygame.sprite.spritecollide(spaceship,enemies,dokill=True): os 仅在单个帧中满足。如果你想在屏幕上永久显示游戏，你需要根据spaceship_collided 来绘制它：

running = True
while running:
    # [...]

    if pygame.sprite.spritecollide(spaceship,dokill=True):
        spaceship_collided = True
    if spaceship_collided:
        bg.blitme()

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