if(player.transform.position.x== 0)
        {
            if (Input.GetKeyDown(KeyCode.A))
            {
                player.transform.Translate(-1,0,0);
            }
            if (Input.GetKeyDown(KeyCode.D))
            {
                player.transform.Translate(+1,0,0);
            }
        }


        if (player.transform.position.x == -1)
            {
                if (Input.GetKeyDown(KeyCode.A))
                {
                }
                if (Input.GetKeyDown(KeyCode.D))
                {
                    player.transform.Translate(+1, 0, 0);
                }

            }


        if (player.transform.position.x == +1)
        {
            if (Input.GetKeyDown(KeyCode.A))
            {
                player.transform.Translate(-1, 0, 0);
            }
            if (Input.GetKeyDown(KeyCode.D))
            {
            }

        }