auto save

my_game.py

 import pygame
 from pygame import locals
+import random
 
 pygame.init()  # 初始化
 
@@ -13,13 +14,19 @@ background = pygame.image.load('bg.png')    # 背景
 road = pygame.image.load('road.png')      # 路
 stone = pygame.image.load('stone.png')      # 石头
 cacti = pygame.image.load('cacti.png')      # 仙人掌
-apple = pygame.image.load('bush.png')      # 灌木丛
+bush = pygame.image.load('bush.png')      # 灌木丛
 hero = [pygame.image.load('hero1.png'),pygame.image.load('hero2.png'),
         pygame.image.load('hero3.png'),pygame.image.load('hero4.png'),
         pygame.image.load('hero5.png')]
 index = 0 
 jumpState = "runing"
 y = 400
+t = 30
+
+obstacle = random.choice([bush,stone,cacti])
+rect = obstacle.get_rect()
+rect.x = 1000
+rect.y = 500 - rect.height
 
 while True:
     for event in pygame.event.get():
@@ -27,29 +34,45 @@ while True:
             # 接收到退出事件后退出程序
             exit()
         if event.type == locals.KEYDOWN:
-            if event.key == locals.K_SPACE:
-                jumpState = "up"
+            if jumpState == "runing":
+                if event.key == locals.K_SPACE:
+                    jumpState = "up"
     if jumpState == "up":
-        if y > 150:
-            y -= 5
+        if t > 0:
+            y -= t
+            t -= 2
         else:
             jumpState = "down"
     
     if jumpState == "down":
-        if y < 400:
-            y += 5
+        if t <= 30:   #此处当t=28时,那么y+=28,而t=30.进行下一次循环y+=30,t=32了
+            y += t    #所以需要重置t的值.  若将条件改为t<30,那么当t=28时,y+=28,t变为30
+            t += 2    #此时t不满足<30,所以y相当于少加了一个30的距离,因此不行
         else:
             jumpState = "runing"
+            t = 30
 
     wukong = hero[index]
-    index += 1
-    if index == 5:
-        index = 0
+    if jumpState == "runing":
+        index += 1
+        if index == 5:
+            index = 0
+
 
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(road, (0, 500))
     screen.blit(wukong, (150, y))
+
+    if rect.x < 0 - rect.width:   #障碍物消失
+        obstacle = random.choice([bush,stone,cacti])
+        rect = obstacle.get_rect()     #重新写一遍的原因是，之前写的都在while true
+        rect.x = 1000                  #外面，所以要在循环内重写一次
+        rect.y = 500 - rect.height
+
+    rect.x -= 8
+    screen.blit(obstacle,(rect.x,rect.y))
+
     # 刷新画面
     pygame.display.update()
-    FPS.tick(60)
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+    FPS.tick(40)
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