save project

snake.py

@@ -10,9 +10,14 @@ screen = pygame.display.set_mode((660, 480))
 # 背景
 # 背景
 background = pygame.image.load('bg.png')
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.png')
+left = pygame.image.load('left.png')
+up= pygame.image.load('up.png')
+down= pygame.image.load('down.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')
 a=pygame.time.Clock()
 a=pygame.time.Clock()
+sethending="right"
+snake_head=right
 x,y=248,120
 x,y=248,120
 position=[(180,90),(180,120),(210,120),(x,y)]
 position=[(180,90),(180,120),(210,120),(x,y)]
 while True:
 while True:
@@ -20,6 +25,15 @@ while True:
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
+        elif event.type==locals.KEYDOWN:
+            if even.key == locals.K_RALT and setheading !="left":
+                setheading="right"
+            if even.key == locals.K_RALT and setheading !="right":
+                setheading="left"
+            if even.key == locals.K_RALT and setheading !="down":
+                setheading="up"
+            if even.key == locals.K_RALT and setheading !="up":
+                setheading="down"
     x+=30
     x+=30
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)