/// <summary>
/// Writes en passant data.
/// </summary>
/// <param name="writer">The file writer.</param>
/// <param name="enPassant">The en passant data.</param>
private void WriteEnPassant(StreamWriter writer, FriendlyEnPassant enPassant)
{
writer.WriteLine(PersistenceConstants.EnPassantSection);
WritePosition(writer, enPassant.WhiteEnPassant);
WritePosition(writer, enPassant.BlackEnPassant);
}
/// <summary>
/// Loads <see cref="FriendlyBoard"/> object from the specified file.
/// </summary>
/// <param name="path">The path to file.</param>
/// <exception cref="InvalidSectionValueException">Thrown when loaded section name has invalid value.</exception>
/// <returns><see cref="FriendlyBoard"/> object loaded from the file.</returns>
public FriendlyBoard Read(string path)
{
FriendlyPiecesList pieces = null;
FriendlyCastling castling = null;
FriendlyEnPassant enPassant = null;
using (var reader = new StreamReader(path))
{
while (!reader.EndOfStream)
{
var line = reader.ReadLine();
if (line == null)
{
throw new InvalidSectionValueException();
}
var lineAfterTrim = line.Trim();
if (lineAfterTrim.Length == 0)
{
continue;
}
switch (lineAfterTrim)
{
case PersistenceConstants.BoardSection:
{
pieces = ReadBoard(reader);
break;
}
case PersistenceConstants.CastlingSection:
{
castling = ReadCastling(reader);
break;
}
case PersistenceConstants.EnPassantSection:
{
enPassant = ReadEnPassant(reader);
break;
}
default:
{
throw new InvalidSectionValueException();
}
}
}
}
return(new FriendlyBoard(pieces, castling, enPassant));
}