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试图在 pygame 中创建一个在 pygame 中沿直线发射子弹的敌人。我设法让敌人开枪,但它射出的是一束恒定的子弹,而不是将它们隔开。有什么办法可以隔开子弹吗?
这是敌人的类(class)
class Boss(pygame.sprite.Sprite):
def __init__(self):
pygame.sprite.Sprite.__init__(self)
self.image = pygame.Surface((100, 70))
self.image.fill(white)
self.rect = self.image.get_rect()
self.rect.centerx = WIDTH / 2
self.rect.y = (WIDTH / 2) - 500
self.speedy = 3
def update(self):
self.rect.y += self.speedy
if self.rect.y >= 30:
self.rect.y = 30
def shoot(self):
bossbullet = Bossbullet(self.rect.centerx, self.rect.bottom)
all_sprites.add(bossbullet)
bossbullets.add(bossbullet)
class Bossbullet(pygame.sprite.Sprite):
def __init__(self, x, y):
pygame.sprite.Sprite.__init__(self)
self.image = pygame.Surface((10, 20))
self.image.fill(white)
self.rect = self.image.get_rect()
self.rect.bottom = y
self.rect.centerx = x
self.speedy = -10
def update(self):
self.rect.y -= self.speedy
if self.rect.bottom < 0:
self.kill()
all_sprites = pygame.sprite.Group()
boss = Boss()
all_sprites.add(boss)
bossbullets = pygame.sprite.Group()
这是游戏运行和敌人射击的循环
running = True
while running:
clock.tick(FPS)
if boss.rect.y >= 30:
boss.shoot()