public static Game Deserialize(BsonDocument document)
{
ObjectId id = document["_id"].AsObjectId;
Player active_player = PlayerUtils.FromString(document["active_player"].AsString);
GameState game_state = GameStateUtils.FromString(document["game_state"].AsString);
DateTime creation_time = document["creation_time"].ToLocalTime();
var harmonics = new List <QuantumHarmonic>();
foreach (BsonValue bson_harmonic_val in document["harmonics"].AsBsonArray)
{
BsonDocument bson_harmonic = bson_harmonic_val.AsBsonDocument;
GameState harmonic_state = GameStateUtils.FromString(bson_harmonic["harmonic_state"].AsString);
ulong degeneracy = Convert.ToUInt64(bson_harmonic["degeneracy"].AsInt64);
BsonArray bson_chessboard = bson_harmonic["chessboard"].AsBsonArray;
var chessboard = Chessboard.EmptyChessboard(harmonic_state);
for (int i = 0; i < 64; i++)
{
BsonValue bson_square_val = bson_chessboard[i];
if (bson_square_val.IsBsonNull)
{
chessboard[i] = null;
}
else
{
BsonDocument bson_square = bson_square_val.AsBsonDocument;
Player square_player = PlayerUtils.FromString(bson_square["player"].AsString);
PieceType square_piece = PieceTypeUtils.FromString(bson_square["piece"].AsString);
chessboard[i] = new Piece(square_player, square_piece);
}
}
harmonics.Add(new QuantumHarmonic(chessboard, degeneracy));
}
var quantum_chessboard = new QuantumChessboard(harmonics, game_state);
var last_move_positions = new List <Position>();
foreach (BsonValue pos_val in document["last_move_positions"].AsBsonArray)
{
last_move_positions.Add(Position.Parse(pos_val.AsString));
}
var engine = new QuantumChessEngine(quantum_chessboard, active_player, creation_time, last_move_positions.ToArray());
return(new Game(id, engine));
}