auto save

snake.py

@@ -23,6 +23,8 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 setheading = "right"
 snake_head = right
 
+apple_x = 360
+apple_y = 300
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -41,7 +43,7 @@ while True:
             if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
                 snake_head = down
-
+    position.append((x, y))
     # 设置贪吃蛇的头部坐标
     if setheading == "right":
         x += 30
@@ -51,8 +53,14 @@ while True:
         y -= 30
     else:
         y += 30
-    position.append((x, y))
-    position.pop(0)
+    else:
+        position.pop(0)
+    import random
+    if x == apple_x and y == apple_y:
+        apple_x = random.randint(0,21)
+        apple_y = random.randint(0,15)
+        apple_x = apple_x*30
+        apple_y = apple_y*30
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -62,7 +70,7 @@ while True:
         screen.blit(body, position[i])
 
     # 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)
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