save project

snake.py

-import pygame
+import pygame,random
 from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
@@ -16,10 +16,12 @@ 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
-
+my_font=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
+score=0
 setheading = "right"
 snake_head = right
 
@@ -52,17 +54,28 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    position.pop(0)
+    if x ==apple_x and y ==apple_y:
+            score+=5
+            num1=random.randint(1,22)
+            num2=random.randint(1,16)
+            apple_x=num1*30-30
+            apple_y=num2*30-30
+    else:
+        position.pop(0)
     # 将背景图画上去
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-
+    info="Score:"+str(score)
+    text=my_font.render(info,True,(255,255,255))
+    screen.blit(text,(540,10))
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(5)
\ No newline at end of file