save project

snake.py

@@ -12,7 +12,13 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.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
+position=[(180,90),(180,120),(210,120),(x,y)]
 setheading='right'
+snake_hand=right
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -21,28 +27,33 @@ while True:
         if event.type==locals.KEYDOWN:
             if event.key==locals.K_RIGHT and setheading != 'left':
                 setheading='right'
+                snake_hand=right
             if event.key==locals.K_LEFT and setheading != 'right':
                 setheading='left'
+                snake_hand=left
             if event.key==locals.K_UP and setheading != 'down':
                 setheading='up'
+                snake_hand=up
             if event.key==locals.K_DOWN and setheading != 'up':
                 setheading='down'
+                snake_hand=down
     if setheading=='right':
         x+=30
     elif setheading=='left':
         x-=30
     elif setheading=='up':
         y-=30
-    elif setheading=='down':
+    else:
         y+=30
+    position.append((x,y))
+    position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (x, y))
+    screen.blit(snake_hand,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))
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面