auto save

snake.py

 import pygame
+import random
 from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
@@ -16,9 +17,13 @@ body = pygame.image.load('body.png')        # 身体
 left = pygame.image.load('left.png')        # 头 朝左
 up = pygame.image.load('up.png')            # 头 朝上
 down = pygame.image.load('down.png')        # 头 朝下
+myfont = pygame.font.Font('neuropol.ttf',18)
 
 x, y = 240, 120
+apple_x = random.randint(0,21)*30
+apple_y = random.randint(0,15)*30
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
+score = 0
 
 setheading = "right"
 snake_head = right
@@ -28,6 +33,8 @@ while True:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+        if x>660 or x<0 or y>480 or y<0:
+            exit()
         if event.type == locals.KEYDOWN:
             if event.key == locals.K_RIGHT and setheading != "left":
                 setheading = 'right'
@@ -52,7 +59,6 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -62,7 +68,19 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x , apple_y))
+
+    if x == apple_x and y == apple_y:
+        apple_x = random.randint(0,21)*30
+        apple_y = random.randint(0,15)*30 
+        score += 10
+    else:
+        position.pop(0)
+
+    info = 'Score  ' + str(score)
+    text = myfont.render(info,True,(0,0,0))
+    screen.blit(text,(540,10))
+
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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