save project

snake.py

@@ -14,12 +14,26 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.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:
             # 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()
-        x+=30
+        elif event.type==locals.KEYDOWN:
+            if event.key==locals.K_Right and sethedaing !="left":
+                setheading='right'
+                snake_head=right
+            if event.key==locals.K_Left and sethedaing !="right":
+                setheading='left'
+                snake_head=left
+            if event.key==locals.K_Up and sethedaing !="down":
+                setheading='up'
+                snake_head=up
+            if event.key==locals.K_DOWN and sethedaing !="up":
+                setheading='down'
+                snake_head=down
         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