save project

snake.py

@@ -23,7 +23,7 @@ position = [(180, 90),(180, 120),(210, 120),(x, y)]
 ax,ay = randint(0,21),randint(0,15)
 
 setheading = "right"
-snake_head = right
+
 
 while True:
     for event in pygame.event.get():
@@ -31,20 +31,14 @@ while True:
             # 接收到退出事件后退出程序
             exit()
         if event.type == locals.KEYDOWN:
-            print(ax,ay)
             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
-
     # 设置贪吃蛇的头部坐标
     if setheading == "right":
         x += 30
@@ -55,14 +49,15 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    position.pop(0)
+    if x!=ax*30 or y!=ay*30:
+        position.pop(0)
     if x==ax*30 and y==ay*30:
         ax,ay = randint(0,21),randint(0,15)
         print(ax,ay)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
-    screen.blit(snake_head, position[-1])
+    screen.blit(right, position[-1])
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])