save project

snake.py

@@ -13,41 +13,16 @@ 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"
-sh = right
 
 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_RIGHT and setheading != "left" :
-            setheading = "right"
-            sh = right
-        if event.key == locals.K_LEFT and setheading != "right" :
-           setheading = "left" 
-           sh = left
-        if event.key == locals.K_UP and setheading != "down":
-           setheading = "up"
-           sh = up
-        if event.key == locals.K_DOWN and setheading != "up":
-           setheading = "down" 
-           sh = 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.pop(0)
     # 将背景图画上去