auto save

snake.py

@@ -6,6 +6,7 @@ pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
+FPSCLOCK=pygame.time.Clock()
 
 # 背景
 background = pygame.image.load('bg.png')
@@ -13,20 +14,31 @@ right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 
+x,y=240,120#初始坐标
+position=[(180,90),(180,120),(210,120),(x,y)]  #创建一个列表
+#             0        1          2       3
+#            -4       -3         -2       -1
+
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+    x+=30
+    position.append((x,y))#在列表末尾追加一个坐标
+    position.pop(0)#删除列表第一个坐标
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    screen.blit(right, position[-1])
     # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
+    # screen.blit(body, (210, 120))
+    # screen.blit(body, (180, 120))
+    # screen.blit(body, (180, 90))
+    for i in range(len(position)-1):#遍历
+        screen.blit(body,(position[i]))
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
-    pygame.display.update()
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+    pygame.display.update()
+    FPSCLOCK.tick(3)
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