/// <summary>
/// parses a single PGN game.
/// Can also parse a move list in algebraic notation.
/// </summary>
/// <param name="data"></param>
/// <param name="i"></param>
/// <returns></returns>
public PGNGame ParseGame(string data, int i = 0)
{
// make sure there is padding at the end.
// When batch processing games this has already been done. Only needs to be
// done when parsing single games
if (data[data.Length - 1] != '\n' || data[data.Length - 2] != '\n')
data += DataPadding;
// Lexer
var tags = ParseTags(data, ref i);
var tokens = Tokenize(data, ref i);
// Parser
var iToken = 0;
var position = new Board(true);
var variation = GetVariation(tokens, ref iToken, position);
var game = new PGNGame(tags, variation);
return game;
}
public static string EncodeGame(PGNGame game, bool writeResults = true)
{
var variation = game.GetMainVariation();
var sb = new StringBuilder();
foreach (var move in variation)
{
sb.Append(EncodeMove(move.From, move.To, move.Promotion));
}
if (writeResults)
{
sb.Append('-');
sb.Append(((int)game.Results.Results).ToString());
}
var str = sb.ToString();
return(str);
}
/// <summary>
/// parses a single PGN game.
/// Can also parse a move list in algebraic notation.
/// </summary>
/// <param name="data"></param>
/// <param name="i"></param>
/// <returns></returns>
public PGNGame ParseGame(string data, int i = 0)
{
// make sure there is padding at the end.
// When batch processing games this has already been done. Only needs to be
// done when parsing single games
if (data[data.Length - 1] != '\n' || data[data.Length - 2] != '\n')
{
data += DataPadding;
}
// Lexer
var tags = ParseTags(data, ref i);
var tokens = Tokenize(data, ref i);
// Parser
var iToken = 0;
var position = new Board(true);
var variation = GetVariation(tokens, ref iToken, position);
var game = new PGNGame(tags, variation);
return(game);
}
public static PGNGame DecodeGame(string encodedString)
{
var s = encodedString;
int i = 0;
Color player = Color.White;
int move = 1;
var moves = new List <PGNMove>();
PGNMove lastmove = null;
while (i < s.Length - 1)
{
// check if the last move wa actually a promotion
if (Decode[s[i]] == SpecialInstruction)
{
lastmove.Promotion = (Piece)Decode[s[i + 1]];
continue;
}
var from = Decode[s[i]];
var to = Decode[s[i + 1]];
lastmove = new PGNMove()
{
From = from, To = to, MoveNumber = move, Color = player /*, Piece = ...*/
};
if (player == Color.Black)
{
move++;
}
player = (player == Color.White) ? Color.Black : Color.White;
moves.Add(lastmove);
i += 2;
}
var variation = new GameVariation(moves.Select(x => (IPGNElement)x).ToList());
var game = new PGNGame(new Dictionary <string, string>(), variation);
return(game);
}
public static string EncodeGame(PGNGame game, bool writeResults = true)
{
var variation = game.GetMainVariation();
var sb = new StringBuilder();
foreach(var move in variation)
sb.Append(EncodeMove(move.From, move.To, move.Promotion));
if (writeResults)
{
sb.Append('-');
sb.Append(((int)game.Results.Results).ToString());
}
var str = sb.ToString();
return str;
}
public static PGNGame DecodeGame(string encodedString)
{
var s = encodedString;
int i = 0;
Color player = Color.White;
int move = 1;
var moves = new List<PGNMove>();
PGNMove lastmove = null;
while(i < s.Length - 1)
{
// check if the last move wa actually a promotion
if (Decode[s[i]] == SpecialInstruction)
{
lastmove.Promotion = (Piece)Decode[s[i + 1]];
continue;
}
var from = Decode[s[i]];
var to = Decode[s[i + 1]];
lastmove = new PGNMove() { From = from, To = to, MoveNumber = move, Color = player/*, Piece = ...*/ };
if(player == Color.Black)
move++;
player = (player == Color.White) ? Color.Black : Color.White;
moves.Add(lastmove);
i += 2;
}
var variation = new GameVariation(moves.Select(x => (IPGNElement)x).ToList());
var game = new PGNGame(new Dictionary<string, string>(), variation);
return game;
}
