private static string finishPGNMove(string pgnMove, PieceType promoteToPiece, Color playerColor)
{
var promotedPiece = PGNEngine.GetPieceCharFromPieceTypeColor(promoteToPiece, playerColor);
if (promotedPiece == PGNService.NullPiece)
{
return(pgnMove);
}
else
{
return($"{ pgnMove }{ PGNService.PawnPromotionIndicator }{ promotedPiece }");
}
}
public void Basic()
{
Assert.AreEqual(PieceType.King, PGNEngine.GetPieceTypeFromPGNMove("Kb2"));
Assert.AreEqual(PieceType.Queen, PGNEngine.GetPieceTypeFromPGNMove("Qa2"));
Assert.AreEqual(PieceType.Rook, PGNEngine.GetPieceTypeFromPGNMove("Ra2"));
Assert.AreEqual(PieceType.Bishop, PGNEngine.GetPieceTypeFromPGNMove("Bb2"));
Assert.AreEqual(PieceType.Knight, PGNEngine.GetPieceTypeFromPGNMove("Na2"));
Assert.AreEqual(PieceType.Pawn, PGNEngine.GetPieceTypeFromPGNMove("a2"));
Assert.AreEqual(PieceType.King, PGNEngine.GetPieceTypeFromPGNMove("kb2"));
Assert.AreEqual(PieceType.Queen, PGNEngine.GetPieceTypeFromPGNMove("qa2"));
Assert.AreEqual(PieceType.Rook, PGNEngine.GetPieceTypeFromPGNMove("ra2"));
Assert.AreEqual(PieceType.Bishop, PGNEngine.GetPieceTypeFromPGNMove("bb2"));
Assert.AreEqual(PieceType.Knight, PGNEngine.GetPieceTypeFromPGNMove("na2"));
Assert.AreEqual(PieceType.Pawn, PGNEngine.GetPieceTypeFromPGNMove("a2"));
}
public (int piecePosition, int newPiecePosition, char promotedPiece) PGNMoveToSquarePair(GameState gameState, string pgnMove)
{
var positionFromPGNMove = getPositionFromPGNMove(pgnMove, gameState.ActiveColor, gameState.EnPassantTargetSquare);
var newPiecePosition = positionFromPGNMove.position;
var promotedPiece = positionFromPGNMove.promotedPiece;
var pieceType = PGNEngine.GetPieceTypeFromPGNMove(pgnMove);
var pieceIndicator = pgnMove[0];
if (pieceIndicator == 'b')
{
if (gameState.ActiveColor == Color.White)
{
// this is a pawn move, not a bishop because a white bishop would be B, not b
pieceType = PieceType.Pawn;
}
else
{
// the code above will think that this move is done by a bishop
// so here we see if any pawn can do the job
// the attacking pawn would have to be on the b file for confusion to occur here
// ****************************************************
// I'm concerned that there might be a situation where the pgn move differentiates between
// the pawn and bishop move, yet we haven't looked close enough.
// should probably attempt to induce this scenario
var bFile = this._orthogonalService.GetEntireFile(1);
var potentialPawnSquares = gameState.Attacks.Where(a =>
a.Index == newPiecePosition &&
bFile.Contains(a.AttackingSquare.Index) &&
a.AttackingSquare.Piece.Color == gameState.ActiveColor &&
(
a.Occupied || (!a.Occupied && !a.MayOnlyMoveHereIfOccupiedByEnemy)
) &&
a.AttackingSquare.Piece.PieceType == PieceType.Pawn
);
if (potentialPawnSquares.Any())
{
// if there are pawn pieces that can fulfill here, then make the pieceType = Pawn
pieceType = PieceType.Pawn;
}
}
}
var piece = new Piece(pieceType, gameState.ActiveColor);
var piecePosition = GetCurrentPositionFromPGNMove(gameState, piece, newPiecePosition, pgnMove, positionFromPGNMove.isCastle);
return(piecePosition.Index, newPiecePosition, promotedPiece);
}
