Integration to the chess crate

[UlisseMini]

It would be nice to support native integration into the chess crate, I understand you may not want to depend on it simply for a nicer API for the people who happen to be using it, but I think (i'm a beginner) it should be possible to hide such an API behind some sort of compile time checks.

Just my 2 cents, likely i'm totally wrong.

[UlisseMini]

I "solved" my problem by writing this

use vampirc_uci as uci;

pub fn to_chess_square(uci_square: uci::UciSquare) -> chess::Square {
    chess::Square::make_square(
        chess::Rank::from_index(uci_square.rank as usize - 1),
        chess::File::from_index(uci_square.file as usize - 'a' as usize),
    )
}

pub fn to_chess_piece(uci_piece: uci::UciPiece) -> chess::Piece {
    use chess::Piece;
    use vampirc_uci::UciPiece::*;
    match uci_piece {
        King => Piece::King,
        Queen => Piece::Queen,
        Knight => Piece::Knight,
        Pawn => Piece::Pawn,
        Bishop => Piece::Bishop,
        Rook => Piece::Rook,
    }
}

pub fn to_chess_move(uci_move: uci::UciMove) -> chess::ChessMove {
    let from = to_chess_square(uci_move.from);
    let to = to_chess_square(uci_move.to);

    let mut promo = None;
    if uci_move.promotion.is_some() {
        promo = Some(to_chess_piece(uci_move.promotion.unwrap()));
    }

    chess::ChessMove::new(from, to, promo)
}

but that is hardly a solution

[MadMatt04]

Yeah, vampirc has its own move generation and representation of chess concepts (currently not public), but in theory it would be easy to do this as an optional dependency.

[MadMatt04]

Implemented in #11, to be released as 0.9.0.

[MadMatt04]

Released in 0.9.0.