save project

snake.py

 import pygame
 from pygame import locals
-
+import random
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -12,9 +12,15 @@ 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
+applex=360
+appley=270
 pos=[(180,90),(180,120),(210,120),(x,y)]
 setheading='right'
+snake_head = right
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -23,12 +29,16 @@ while True:
         if event.type==locals.KEYDOWN:
             if event.key== locals.K_RIGHT and setheading!='left':
                 setheading='right'
+                snake_head=right
             if event.key== locals.K_LEFT and setheading!='right':
                 setheading='left'
+                snake_head=left
             if event.key== locals.K_UP and setheading!='down':
                 setheading='up'
+                snake_head=up
             if event.key== locals.K_DOWN and setheading!='up':
                 setheading='down'
+                snake_head=down
     if setheading=='right':
         x+=30
     elif setheading=='left':
@@ -40,7 +50,9 @@ while True:
 
 
     # 将背景图画上去
- 
+    if x==applex and y==appley:
+        appley=random.randint(0,480)
+        applex=random.randint(0,660)
     pos.append((x,y))
     pos.pop(0)
     screen.blit(background, (0, 0))
@@ -53,7 +65,7 @@ while True:
     #screen.blit(body, (180, 120))
     #screen.blit(body, (180, 90))
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (applex, appley))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(1)
\ No newline at end of file
+    FPSCLOCK.tick(3)
\ No newline at end of file