auto save

snake.py

@@ -13,20 +13,37 @@ right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 
+FPSCLOCK = pygame.time.Clock()
+x = 240 
+y = 120
+snake_pos = [(180,90),(180,120),(210,120),(x,y)]
 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()
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_UP:
+                setheading = "up"
+            if event.key == locals.K_DOWN:
+                setheading = "down"
+            if event.key == locals.K_RIGHT:
+                setheading = "right"
+            if event.key == locals.K_LEFT:
+                setheading = "left"
+    x += 30
+    snake_pos.append((x,y))
+    snake_pos.pop(0)
     # 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,snake_pos[-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))
+    for i in range(len(snake_pos)-1):
+        screen.blit(body, snake_pos[i])
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
-    pygame.display.update()
\ No newline at end of file
+    pygame.display.update()
+    FPSCLOCK.tick(3)
+