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@ -58,7 +58,6 @@ class BossBullet(Sprite):
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self.color = ai_settings.bossbullet_color
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self.speed_factor = ai_settings.bossbullet_speed_factor
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self.height = ai_settings.bossbullet_height
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def update(self):
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"""向下移动子弹"""
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@ -66,3 +65,11 @@ class BossBullet(Sprite):
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self.y += self.speed_factor
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# 更新表示子弹的rect的位置
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self.rect.y = self.y
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def reset_position(self, bossalien):
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"""(当子弹飞出屏幕底部或者击中飞船时)回到开始的地方"""
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self.y = bossalien.rect.bottom
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self.x = bossalien.x
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# 更新rect位置
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self.rect.y = self.y
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self.rect.x = self.x
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