save project

snake.py

@@ -17,11 +17,22 @@ 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"
+
 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()
+        if event.key == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheading !="left":
+                setheading = 'right'
+            if event.key == locals.K_LEFT and setheading !="right":
+                setheading = 'left'
+            if event.key == locals.K_UP and setheading !="down":
+                setheading = 'up'
+            if event.key == locals.K_DOWN and setheading !="up":
+                setheading = 'down'
     x += 30   #
     x += 30   #
     position.append((x, y))
     position.append((x, y))
     position.pop(0)
     position.pop(0)