public Game FromSavedGame(SavedGame savedGame)
{
if (savedGame == null)
{
throw new ArgumentException(nameof(savedGame));
}
_boardLength = savedGame.Board.Length;
_emptySymbolChar = FindEmptySymbolChar(savedGame);
_symbolLookup = CreateSymbolLookup(savedGame);
if (!IsValidSaveGame(savedGame))
{
throw new ArgumentException("Invalid Save Game");
}
return(CreateGame(savedGame));
}
private static char FindEmptySymbolChar(SavedGame savedGame)
{
return(savedGame.Board.SelectMany(r => r).FirstOrDefault(s => s != savedGame.Player1Symbol && s != savedGame.Player2Symbol));
}