save project

snake.py

 import pygame
+from random import randint
 from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
@@ -22,23 +23,25 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
 snake_head = right
-
+fx=randint(0,20)*30
+fy=randint(0,16)*30
+print(fx,fy)
 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:
+            if event.key == locals.K_RIGHT and setheading != 'left':
                 setheading = 'right'
                 snake_head = right
-            if event.key == locals.K_LEFT:
+            if event.key == locals.K_LEFT and setheading != 'right':
                 setheading = 'left'
                 snake_head = left
-            if event.key == locals.K_UP:
+            if event.key == locals.K_UP and setheading != 'down':
                 setheading = 'up'
                 snake_head = up
-            if event.key == locals.K_DOWN:
+            if event.key == locals.K_DOWN and setheading != 'up':
                 setheading = 'down'
                 snake_head = down
 
@@ -62,7 +65,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (fx, fy))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
\ No newline at end of file