public void UnMovePiece(Move move)
{
Position to = move.To;
Position from = move.From;
// Pawn demotion
if (move.Promotion)
{
Board.DemotePawn(move);
}
if (move.Piece is King)
{
King king = move.Piece as King;
if (move.Piece.MoveCount == 1)
{
if (king.Color == PieceColor.White)
{
Board.UpdatePieceEnum(king, PieceEnum.WhiteKing);
}
else if (king.Color == PieceColor.Black)
{
Board.UpdatePieceEnum(king, PieceEnum.BlackKing);
}
}
if (move.Castle)
{
Board.MovePiece(move.CastleMove.To, move.CastleMove.From);
move.CastleMove.Piece.MoveCount--;
}
}
Board.MovePiece(to, from);
move.Piece.MoveCount--;
if (!(move.Capture is Empty))
{
Board.AddPiece(move.Capture.Position.Row, move.Capture.Position.Col, move.Capture);
}
if (progress.Count > 0)
{
progress.Pop();
}
if (moves.Count > 0)
{
moves.Pop();
}
if (prevHashes.Count > 0)
{
prevHashes.Pop();
}
if (CurrentTurn == PieceColor.White)
{
CurrentTurn = PieceColor.Black;
if (moves.Count > 0 && moves.Peek().EnPassantMove)
{
Board.UpdatePieceEnum(moves.Peek().Piece, PieceEnum.WhitePawnEnPassant);
}
}
else
{
CurrentTurn = PieceColor.White;
if (moves.Count > 0 && moves.Peek().EnPassantMove)
{
Board.UpdatePieceEnum(moves.Peek().Piece, PieceEnum.BlackPawnEnPassant);
}
}
}
