private void PlayerExitGame(IHanabiPlayer player, RequestExitGame request)
{
ExitGameResult result = ExitGameResult.Success;
if (Players.ContainsKey(player.Nickname))
{
player.OnExitGame();
result = ExitGameResult.Success;
}
ResponseExitGame response = new ResponseExitGame(result);
SendCommand(player, ActionType.ExitGame, response);
}