class Settings:
    """储存游戏中所有设置的类"""
    def __init__(self) -> None:
        """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
        self.ship_limit = 3
        #子弹设置
        # self.bullet_speed = 1.5
        self.bullet_width = 3
        self.bullet_height = 15
        self.bullet_color = (60,60,60)
        self.bullets_allowed = 3
        #外星人设置
        #self.alien_speed = 0.5
        self.fleet_drop_speed = 5
        #加快游戏节奏的速度
        self.speedup_scale = 1.1
        #外星人分数的提高速度
        self.score_scale = 1.5
        self.initialize_dynamic_settings(0)

    def initialize_dynamic_settings(self,level):
        """初始化随游戏进行而变化的设置"""
        self.ship_speed = 0.5 + level*0.3
        self.bullet_speed = 3.0 + level*0.3
        self.alien_speed  = 0.3  + level*0.3
        # 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):
        """提高速度设置和外星人分数"""
        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)
