Author: Jeff GAZET
Date: 07:22:35 02/04/04
Go up one level in this thread
On February 04, 2004 at 10:06:11, Daniel Clausen wrote:
>On February 04, 2004 at 09:46:08, Jeff GAZET wrote:
>
>>hi,
>>
>>i'm new to this forum and i have a question about bitboards :
>>To move a piece from square1 to square2, to know wchich bitboard to modify
>>(white_knights, white_rooks...), do i have to look at the byte square into each
>>bitboard to know which to modify ? Is there a simple way to do it ?
>
>I'm not quite sure what you mean with "byte square into each bitboard", but I
>try to answer anyhow. :)
>
>A move in my case contains not only information about the from- and the
>to-square, but also about the type of piece which moves. (and other things).
>What I do is basically this:
>
>makeWhiteMove(Board* b, Move mv)
>{
> [...]
>
> switch(mv.pieceType)
> {
> case KNIGHT: update white_knights;
> update white_pieces;
> [...]
> break;
>
> case ROOK: update white_rooks;
> update white_pieces;
> [...]
> break;
>
> [...]
>
> }
>
> [...]
>}
>
>Alternativly, if your move type doesn't contain the piecetype information, you
>have could look in the pieces[64] array of your board structure. If you also
>don't have that, then you really have a problem, because then you have to check
>all bitboards and see in which one the bit is set for your from-square.
>
>HTH
>
>Sargon
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.