Python外星人入侵完整代码和注释(八) - 好文

八、计分，创建一个scoreboard.py的文件

1、显示分数，在屏幕上显示最高分，等级和剩余的飞船数，

在正上方显示最高分，右上方显示分数

2、创建记分牌，用于计算得到的分数

3、显示等级。在外星人消灭后，提高等级

代码如下
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)
#准备初始得分图像包含最高得分 self.prep_score() self.prep_high_score() self.prep_level()
self.prep_ships() def prep_score(self): #将得分转化为一幅渲染的图片
#round的第二个实参是将stats.score值整到10的整数倍 rounded_score =
int(round(self.stats.score,-1)) #一个字符串格式设置指令，在数值中插入逗号 score_str =
"{:,}".format(rounded_score) #将字符串传递给创建图像的render() 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 #上边缘与屏幕相距20像素 self.score_rect.top = 20 def
prep_high_score(self): #将最高得分转化为渲染的图像 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): #显示还剩余多少艘飞船 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) 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)
点击链接 https://blog.csdn.net/Ljt101222/article/details/81253914
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Python外星人入侵完整代码和注释(九)

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