//检查游戏状态
    void check()
    {
        GameSceneController scene = GameSceneController.GetInstance();
        int p_on_Bank = 0, d_on_Bank = 0;
        int p_s = 0, d_s = 0, p_e = 0, d_e = 0;

        if (p_end.Count == 3 && d_end.Count == 3)
        {
            scene.Set_message("Win!");
            return;
        }

        for (int i = 0; i < 2; ++i)
        {
            if (boat[i] != null && boat[i].tag == "Priest")
            {
                p_on_Bank++; //给牧师和恶魔添加Tag,以区分
            }
            else if (boat[i] != null && boat[i].tag == "Devil")
            {
                d_on_Bank++;
            }
        }
        if (side == 1)
        {
            p_e = p_end.Count;
            d_e = d_end.Count;
            p_s = p_start.Count + p_on_Bank;
            d_s = d_start.Count + d_on_Bank;
        }
        else if (side == 2)
        {
            p_e = p_on_Bank + p_end.Count;
            d_e = d_on_Bank + d_end.Count;
            p_s = p_start.Count;
            d_s = d_start.Count;
        }
        if ((p_e < d_e && p_e != 0) || (p_s < d_s && p_s != 0))
        {
            scene.Set_message("Lose!");
        }
    }