auto save

snake.py

@@ -13,10 +13,16 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
 
 
 x,y=240,120
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
 position=[(180,90),(180,120),(210,120),(x,y)]
 
 
+setheading="right"
+snake_head=right
+
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
@@ -25,14 +31,26 @@ while True:
         if event.type==locals.KEYDOWN:
         if event.type==locals.KEYDOWN:
             if event.key==locals.K_RIGHT and setheading !="left":
             if event.key==locals.K_RIGHT and setheading !="left":
                 setheading='right'
                 setheading='right'
+                snake_head=right
             if event.key==locals.K_LEFT and setheading !="right":
             if event.key==locals.K_LEFT and setheading !="right":
                 setheading='left'
                 setheading='left'
+                snake_head=left
             if event.key==locals.K_UP and setheading !="down":
             if event.key==locals.K_UP and setheading !="down":
                 setheading='up'
                 setheading='up'
+                snake_head=up
             if event.key==locals.K_DOWN and setheading !="up":
             if event.key==locals.K_DOWN and setheading !="up":
                 setheading='down'
                 setheading='down'
+                snake_head=down
+
+    if setheading=="right":
+        x+=30
+    elif setheading=="left":
+        x-=30
+    elif setheading=="up":
+        y-=30
+    else:
+        y+=30
               
               
-    x+=30
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)
     # 将背景图画上去
     # 将背景图画上去