save project

snake.py

@@ -22,7 +22,8 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
 snake_head = right
-
+a = 360
+b = 300
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -52,7 +53,13 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    position.pop(0)
+    if x == a and y == b:
+        a = random.randint(0,660)
+        b = random.randint(0,480)
+        a = a-a%30
+        b = b-b%30
+    else:
+        position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -62,8 +69,8 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (a,b))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
-    a = (1,18)
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+   
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