save project

snake.py

@@ -25,6 +25,8 @@ setheading = "right"
 snake_head = right
 apple_x = random.randint(0,21)*30
 apple_y = random.randint(0,15)*30
+my_font = pygame.font.Font('neuropol.ttf',15)
+score = 0
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -56,8 +58,11 @@ while True:
     if (x,y) == (apple_x,apple_y):
         apple_x = random.randint(0,21)*30
         apple_y = random.randint(0,15)*30
+        score += 1
     else:
         position.pop(0)
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     position.append((x, y))
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -66,9 +71,13 @@ while True:
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-
+        if position[i] == (x,y):
+            exit()
+    text = 'Score:'+str(score)
+    info = my_font.render(text,True,(0,0,0))
+    screen.blit(info,(550,10))
     # 将果实画上去
     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(3+score/5)
\ No newline at end of file