static GenericBoard toGenericBoard(Position position) {
GenericBoard genericBoard = new GenericBoard();
// Set board
for (int square : Square.values) {
if (position.board[square] != NOPIECE) {
genericBoard.setPiece(fromPiece(position.board[square]), fromSquare(square));
}
}
// Set castling
if ((position.castlingRights & WHITE_KINGSIDE) != NOCASTLING) {
genericBoard.setCastling(fromColor(WHITE), fromCastlingType(KINGSIDE), fromFile(h));
}
if ((position.castlingRights & WHITE_QUEENSIDE) != NOCASTLING) {
genericBoard.setCastling(fromColor(WHITE), fromCastlingType(QUEENSIDE), fromFile(a));
}
if ((position.castlingRights & BLACK_KINGSIDE) != NOCASTLING) {
genericBoard.setCastling(fromColor(BLACK), fromCastlingType(KINGSIDE), fromFile(h));
}
if ((position.castlingRights & BLACK_QUEENSIDE) != NOCASTLING) {
genericBoard.setCastling(fromColor(BLACK), fromCastlingType(QUEENSIDE), fromFile(a));
}
// Set en passant
if (position.enPassantSquare != NOSQUARE) {
genericBoard.setEnPassant(fromSquare(position.enPassantSquare));
}
// Set active color
genericBoard.setActiveColor(fromColor(position.activeColor));
// Set half move clock
genericBoard.setHalfMoveClock(position.halfmoveClock);
// Set full move number
genericBoard.setFullMoveNumber(position.getFullmoveNumber());
return genericBoard;
}
static Position toPosition(@NotNull GenericBoard genericBoard) {
Position newPosition = new Position();
// Initialize board
for (int square : Square.values) {
GenericPiece genericPiece = genericBoard.getPiece(fromSquare(square));
if (genericPiece != null) {
int piece = toPiece(genericPiece);
newPosition.put(piece, square);
}
}
// Initialize active color
newPosition.setActiveColor(toColor(genericBoard.getActiveColor()));
// Initialize castling
for (int color : Color.values) {
for (int castlingtype : CastlingType.values) {
GenericFile genericFile =
genericBoard.getCastling(fromColor(color), fromCastlingType(castlingtype));
if (genericFile != null) {
newPosition.setCastlingRight(Castling.valueOf(color, castlingtype));
}
}
}
// Initialize en passant
if (genericBoard.getEnPassant() != null) {
newPosition.setEnPassantSquare(toSquare(genericBoard.getEnPassant()));
}
// Initialize half move clock
newPosition.setHalfmoveClock(genericBoard.getHalfMoveClock());
// Initialize the full move number
newPosition.setFullmoveNumber(genericBoard.getFullMoveNumber());
return newPosition;
}