var gameState = GetGameState();
if (gameState == GameState.Idle)
{
    if (HasEnoughPlayers())
    {
        StartVoting(); // gameState = GameState.Vote
    }
}
else if (gameState == GameState.Vote)
{
    if (IsVotingEnded())
    {
        StartSelectedGameMode(); // gameState = GameState.Run
    }
}
else if (gameState == GameState.Run)
{
    if (IsGameModeEnded())
    {
        UpdatePlayersScore();

        if (HasEnoughPlayers())
            StartVoting(); // gameState = GameState.Vote
        else
            Idle(); // gameState = GameState.Idle
    }
}