import pygame.font
class Button():
  def __init__(self,ai_settings,screen,msg):
    self.ai_settings = ai_settings
    self.screen = screen
    self.screen_rect = screen.get_rect()

    # 设置按钮的尺寸和其他属性
    self.width,self.height=200,50
    self.button_color=(0,255,0)
    self.text_color=(255,255,255)
    self.font=pygame.font.SysFont(None,48)

    # 创建按钮的rect对象，并使其居中
    self.rect = pygame.Rect(0,0,self.width,self.height)
    self.rect.center = self.screen_rect.center

    # 按钮的标只需创建一次
    self.pre_msg(msg)
  
  def pre_msg(self,msg):
    self.msg_image = self.font.render(msg,True,self.text_color,self.button_color)
    self.msg_image_rect = self.msg_image.get_rect()
    self.msg_image_rect.center = self.rect.center

  def draw_button(self):
    # 绘制一个用颜色填充的按钮，然后填充文本
    self.screen.fill(self.button_color,self.rect)
    self.screen.blit(self.msg_image,self.msg_image_rect)
