auto save

snake.py

 import pygame
 
 from pygame import locals
-
+import random
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 
@@ -10,22 +10,62 @@ screen = pygame.display.set_mode((660,480))
 bg = pygame.image.load('bg.png')
 apple = pygame.image.load('apple.png')
 right = pygame.image.load('right.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
 body = pygame.image.load('body.png')
+applex,appley =(210,180)
 x,y=(120,30)
 fps=pygame.time.Clock()
 position = [(30,30),(60,30),(90,30),(x,y)]
+heading ='right'
+head = right
+score = 0
+font = pygame.font.Font('neuropol.ttf',15)
 while True:
     for event in pygame.event.get():
         if event.type==locals.QUIT:
             exit()
-    x+=30
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and heading != 'left':
+                heading='right'
+                head =right
+            if event.key==locals.K_LEFT and heading != 'right':
+                heading='left'
+                head = left
+            if event.key==locals.K_UP and heading != 'down':
+                heading='up'
+                head = up
+            if event.key==locals.K_DOWN and heading != 'up':
+                heading='down'
+                head = down
+    if heading =='right':
+        x+=30
+    if heading =='left':
+        x-=30
+    if heading =='up':
+        y-=30
+    if heading =='down':
+        y+=30
+    if x < 0 or x >630 or y < 0 or y > 450:
+        exit()
     position.append((x,y))
-    position.pop(0)
+    if x == applex and y == appley:
+        applex = random.randint(0,21)*30
+        appley = random.randint(0,15)*30    
+        score += 1
+    else :
+        position.pop(0)
     screen.blit(bg,(0,0))
-    screen.blit(apple,(90,150))
-    screen.blit(right,(x,y))
+    screen.blit(apple,(applex,appley))
+    screen.blit(head,(x,y))
     for i in range (len(position)-1):
+        if (x,y)==position[i]:
+            exit()
         screen.blit(body,position[i])
+    text ="Score:"+str(score)
+    info =font.render(text,True,(0,0,0))
+    screen.blit(info,(540,30))
     pygame.display.update()
-    fps.tick(3)
+    fps.tick(2+score/4)