public Player JoinGame(string userName)
{
switch (Status)
{
case GameStatus.Running:
throw new BadRequestException("Cannot join game that has already started");
case GameStatus.Finished:
throw new BadRequestException("Cannot join game that is finished");
}
if (Players.Length >= MaxPlayers)
{
throw new BadRequestException("Max number of players");
}
if (string.IsNullOrWhiteSpace(userName))
{
throw new BadRequestException("Username cannot be empty");
}
if (Players.Any(pl => userName.Equals(pl.UserName, StringComparison.InvariantCultureIgnoreCase)))
{
throw new BadRequestException("User with same name already registered");
}
var player = new Player(userName);
Players = Players.Append(player).ToArray();
return(player);
}