auto save

my_game.py

 import pygame
 from pygame import locals
 import random
+#注意导入json模块
+import json
 
 pygame.init()  # 初始化
 
@@ -14,6 +16,7 @@ class Block(pygame.sprite.Sprite):      # 障碍物精灵类
         # 障碍物绘制坐标
         self.rect.x = 1000
         self.rect.y = 500 - self.rect.height
+        self.score = 1
 
 class Player(pygame.sprite.Sprite):     # 悟空
     def __init__(self, image):
@@ -40,6 +43,8 @@ hero = [pygame.image.load('hero1.png'),
         pygame.image.load('hero3.png'),
         pygame.image.load('hero4.png'),
         pygame.image.load('hero5.png')]
+my_font = pygame.font.Font("STKAITI.TTF",18)  #加载文字对象
+score_sound = pygame.mixer.Sound("score.wav")  #加载分数音效
 index = 0   
 y = 400
 jumpState = "runing"
@@ -51,6 +56,23 @@ gamestate = True
 
 block_list =pygame.sprite.Group()   # 创建精灵组
 
+#设置游戏分数
+score = 0
+#设置分数音效
+old_score = 0
+#当前障碍物移动速度
+speed = 8
+
+#读取txt文件
+with open("record.txt","r",encoding="utf-8") as file:
+    content = file.read()
+    #json.loads()将json数据转化为python中的字典
+    recode = json.loads(content)
+    one = recode["第1名"]       #字典名[键]
+    two = recode["第2名"]
+    three = recode["第3名"]
+
+
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -60,7 +82,8 @@ while True:
             if jumpState == "runing":
                 if event.key == locals.K_SPACE:
                     jumpState = "up"
-    
+    #实现分数+3，速度+1
+    speed = 8+score//3
     # 悟空造型
     wukong = Player(hero[index])
     if jumpState == "runing":       # 跑步状态下
@@ -73,14 +96,14 @@ while True:
             if t > 0:
                 y -= t
                 wukong.rect.y = y
-                t -= 2
+                t -= 1
             else:
                 jumpState = "down"  
         if jumpState == "down":    # 降落状态
             if t <= 30:
                 y += t
                 wukong.rect.y = y
-                t += 2
+                t += 1
             else:
                 jumpState = "runing"
                 t =30
@@ -91,7 +114,7 @@ while True:
             bg_x = 0
         screen.blit(background, (bg_x, 0))      # 远景
 
-        road_x -= 8
+        road_x -=speed                          #用变量speed运算
         if road_x<=-1000:
             road_x = 0
         screen.blit(road, (road_x, 500))       # 道路
@@ -105,8 +128,9 @@ while True:
             if num > 20:
                 obstacle = Block(bush,cacti,stone)  
                 block_list.add(obstacle)
+
         for sprite in block_list:       # 遍历、展示障碍物精灵
-            sprite.rect.x -= 8
+            sprite.rect.x -= speed      #用变量speed运算
             screen.blit(sprite.image, (sprite.rect.x, sprite.rect.y)) 
             if sprite.rect.x <= 0-sprite.rect.width:
                 sprite.kill()
@@ -114,6 +138,51 @@ while True:
                 gameover = pygame.image.load('gameover.png')     # 游戏结束
                 screen.blit(gameover, (400, 200))
                 gamestate = False
+            #最后：刷新分数排名
+                if score>three:
+                    if score>one:
+                        recode["第1名"] = score
+                        recode["第2名"] = one
+                        recode["第3名"] = two
+                    elif score>two:
+                        recode["第2名"] = score
+                        recode["第3名"] = two
+                    else:
+                        recode["第3名"] = score
+                #将python字典转化为json数据，注意第二个参数时不转换为ASCII码
+                recode = json.dumps(recode,ensure_ascii=False)
+                with open("record.txt","w",encoding="utf-8") as file: 
+                    file.write(recode)
+
+
+
+
+
+
+
+            #如果没有碰到障碍物：也就是跨过障碍物了
+            else:
+                if sprite.rect.x + sprite.rect.width < wukong.rect.x:
+                    score+=sprite.score
+                    sprite.score = 0
+        #新的分数比旧的分数高，就说明分数增加了,就播放音效
+        if score>old_score:
+            score_sound.play()
+            old_score = score
+        
+        #将分数渲染在右上角
+       
+        text = my_font.render("分数:"+str(score),True,(0,0,0))
+        screen.blit(text,(900,20))
+        #将前三名渲染到分数的下面
+        text = my_font.render("第1名:"+str(one),True,(0,0,0))
+        screen.blit(text,(900,50))
+        text = my_font.render("第2名:"+str(two),True,(0,0,0))
+        screen.blit(text,(900,80))
+        text = my_font.render("第3名:"+str(three),True,(0,0,0))
+        screen.blit(text,(900,110))
+
+
 
         # 刷新画面
         pygame.display.update()

record.txt

-{"第1名": 0, "第2名": 0, "第3名": 0}
\ No newline at end of file
+{"第1名": 23, "第2名": 3, "第3名": 3}
\ No newline at end of file