auto save

snake.py

 import pygame
 from pygame import locals
+import random
 
 # 初始化pygame，为使用硬件做准备
 pygame.init()
@@ -10,23 +11,67 @@ screen = pygame.display.set_mode((660, 480))
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
-food = pygame.image.load('apple.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
+left = pygame.image.load('left.png')
+apple = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-
+my_font = pygame.font.Font('neuropol.ttf', 18)
+score = 0
+CLOCK =  pygame.time.Clock()
+x , y = 90, 0
+position = [(0,0),(30,0),(60,0),(x,y)]
+heading = 'right'
+snake_head = right
+apple_x = 12
+apple_y = 10
 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_DOWN and heading != 'up':
+                heading = 'down'
+                snake_head = down
+            if event.key == locals.K_UP and heading != 'down':
+                heading = 'up'
+                snake_head = up
+            if event.key == locals.K_RIGHT and heading != 'left':
+                heading = 'right'
+                snake_head = right
+            if event.key == locals.K_LEFT and heading != 'right':
+                heading = 'left'
+                snake_head = left
+    if heading == 'right':
+        x += 30
+    elif heading == 'left':
+        x -= 30
+    elif heading == 'up':
+        y -= 30
+    else:
+        y += 30
+    position.append((x,y))
+    if x < 0 or x > 630 or y < 0 or y > 450:
+        exit()
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    screen.blit(snake_head, (x, y))
     # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
+    for i in range(len(position)-1):
+        screen.blit(body, position[i])
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(apple, (apple_x*30, apple_y*30))
+    if x == (apple_x*30) and y == (apple_y*30):
+        apple_x = random.randint(0,21)
+        apple_y = random.randint(0,15)
+        score += 10
+    else:
+        position.pop(0)
+    info =  'Score ' + str(score)
+    text = my_font.render(info,True,(0,0,0))
+    screen.blit(text,(540,10))
     # 刷新画面
-    pygame.display.update()
\ No newline at end of file
+    pygame.display.update()
+    CLOCK.tick(3)
\ No newline at end of file