public string JoinedGame(int id, string userId, string number)
{
var gameToJoin = this.games.GetById(id);
gameToJoin.BlueUserId = userId;
var gameState = randomProvider.GetRandomNumber(1, 2);
gameToJoin.GameState = (GameState)gameState;
gameToJoin.BlueUserNumber = number;
this.games.SaveChanges();
return(gameToJoin.Name);
}