save project

snake.py

 import pygame
+import random
 from pygame import locals
-
-# 初始化pygame，为使用pygame做准备
 pygame.init()
-
-# 创建一个窗口
 screen=pygame.display.set_mode((660,480))
 background=pygame.image.load('bg.png')
 right=pygame.image.load('right.png')
 body=pygame.image.load('body.png')
 food=pygame.image.load('apple.png')
 clock=pygame.time.Clock()
+left=pygame.image.load('left.png')
+up=pygame.image.load('up.png')
+down=pygame.image.load('down.png')
+ttf=pygame.font.Font("neuropol.ttf",18)
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
+apple_x=360
+apple_y=300
 setheading="right"
+snake_head=right
+score=0
 while True:
     for event in pygame.event.get():
         if event.type==locals.QUIT:
@@ -21,13 +26,16 @@ 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":
@@ -37,13 +45,24 @@ while True:
     else:
         y+=30
     position.append((x,y))
-    position.pop(0)
+    if x in position[0:-1]:
+        exit()
+    if x==apple_x and y==apple_y:
+        num1=random.randint(1,22)
+        num2=random.randint(1,16)
+        apple_x=30*num1-30
+        apple_y=30*num2-30
+        score+=10
+    else:
+        position.pop(0)
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     screen.blit(background,(0,0))
-    screen.blit(food,(360,300))
-    screen.blit(right,position[-1])
-    #screen.blit(body,(210,120))
-    #screen.blit(body,(180,120))
-    #screen.blit(body,(180,90))
+    screen.blit(food,(apple_x,apple_y))
+    info="Score:"+str(score)
+    text=ttf.render(info,True,(0,0,0))
+    screen.blit(text,(510,10))
+    screen.blit(snake_head,position[-1])
     for i in range(len(position)-1):
         screen.blit(body,position[i])
     pygame.display.update()