public override async Task ExecuteArmed(ServerBattle battle, Say e)
        {
            await battle.SwitchPassword(pwd);

            await battle.SayBattle(string.IsNullOrEmpty(pwd)? "battle password removed" : "battle room password changed");
        }
 public override async Task ExecuteArmed(ServerBattle battle, Say e)
 {
     await battle.SwitchPassword(pwd);
     await battle.SayBattle("battle room password changed");
 }