class Settings: """存储游戏《外星人入侵》中所有设置的类""" def __init__(self): """初始化游戏的设置""" # 屏幕设置 self.screen_width = 1200 self.screen_height = 800 self.bg_color = (230, 230, 230) #飞船设置 self.ship_speed = 1.5 # 子弹设置 self.bullet_speed = 1.0 self.bullet_width = 3 self.bullet_height = 15 self.bullet_color = (60,60,60) self.bullet_allowed = 3 # 外星人设置 self.alien_speed = 1.0 self.fleet_drop_speed = 10 # fleet_direction为1表示向右移,为-1表示向左移 self.fleet_direction = 1 #加快游戏节奏的速度 self.speedup_scale = 1.1 self.initialize_dynamic_settings() def initialize_dynamic_settings(self): """初始化随游戏进行而变化的设置""" self.ship_speed = 1.5 self.bullet_speed = 3.0 self.alien_speed = 1.0 # fleet_direction为1表示向右,为-1表示向左 self.fleet_direction = 1 #计分 self.alien_points = 50 def increase_speed(self): """提高速度设置""" self.ship_speed *= self.speedup_scale self.bullet_speed *= self.speedup_scale self.alien_speed *= self.speedup_scale self.alien_points = int(self.alien_points * self.score_scale) print(self.alien_points)