diff --git a/scoreboard.py b/scoreboard.py new file mode 100644 index 0000000..9bbfb19 --- /dev/null +++ b/scoreboard.py @@ -0,0 +1,74 @@ +import pygame.font +from pygame.sprite import Group +from ship import Ship + + +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 + + # 显示得分信息时使用的字体设置 + self.text_color = (30, 30, 30) + self.font = pygame.font.SysFont(None, 48) + + # 准备包含最高得分和当前得分的图像 + self.prep_score() + self.prep_high_score() + self.prep_level() + self.prep_ships() + + def prep_score(self): + """将得分转换为一幅渲染的图像""" + rounded_score = int(round(self.stats.score, -1)) + score_str = "{:,}".format(rounded_score) + self.score_image = self.font.render(score_str, True, self.text_color, + self.ai_settings.bg_color) + + # 将得分放在屏幕右上角 + 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): + """在屏幕上显示飞船和得分""" + self.screen.blit(self.score_image, self.score_rect) + self.screen.blit(self.high_score_image, self.high_score_rect) + self.screen.blit(self.level_image, self.level_rect) + # 绘制飞船 + self.ships.draw(self.screen) + + def prep_high_score(self): + """将最高得分转换为渲染的图像""" + high_score = int(round(self.stats.high_score, -1)) + high_score_str = "{:,}".format(high_score) + self.high_score_image = self.font.render(high_score_str, True, + self.text_color, self.ai_settings.bg_color) + + # 将最高得分放在屏幕顶部中央 + self.high_score_rect = self.high_score_image.get_rect() + self.high_score_rect.centerx = self.screen_rect.centerx + self.high_score_rect.top = self.score_rect.top + + def prep_level(self): + """将等级转换为渲染的图像""" + self.level_image = self.font.render(str(self.stats.level), True, + self.text_color, self.ai_settings.bg_color) + # 将等级放在得分下方 + self.level_rect = self.level_image.get_rect() + self.level_rect.right = self.score_rect.right + self.level_rect.top = self.score_rect.bottom + 10 + + def prep_ships(self): + """显示还余下多少艘飞船""" + self.ships = Group() + for ship_number in range(self.stats.ships_left): + ship = Ship(self.ai_settings, self.screen) + ship.rect.x = 10 + ship_number * ship.rect.width + ship.rect.y = 10 + self.ships.add(ship)