scoreboard.py

import pygame.font

class Scoreboard():
	"""显示得分信息的类"""
	def __init__(self,ai_settings,screen,stats):
		"""初始化显示得分涉及的属性"""
		self.screen = screen
		self.screen_rect = screen.get_rect()
		self.ai_settings = ai_settings
		self.stats = stats

		#显示得分信息的字体设置
		self.text_color = (30,30,30)
		self.font = pygame.font.SysFont(None,48)

		#准备初始得分的图像
		self.prep_score()

	def prep_score(self):
		"""将得分转换成一副渲染的图像"""
		score_str = "Score: "+str(self.stats.score)
		self.score_image = self.font.render(score_str,True,self.text_color,
			self.ai_settings.bg_color)
		#将得分放在右上角
		self.score_rect = self.score_image.get_rect()
		self.score_rect.right = self.screen_rect.right - 20
		self.score_rect.top = 20

	def show_score(self):
		"""在屏幕上显示得分"""
		self.screen.blit(self.score_image,self.score_rect)