| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2014-04-21 | chess-pos-search*: New function. | Mario Lang | |
| Search for several pieces in one swipe of the board, returning an alist of pieces and their indices. Use this in chess-legal-plies for the common case where we want all legal plies for a certain color makes the testsuite time go down to 9m57s. | |||
| 2014-04-21 | chess-search-position: 20% performance improvement by treating ray pieces ↵ | Mario Lang | |
| commonly. When we search for pieces of a certain color, we iterate over all results from all pieces of that color. However, this is redunant as we end up to check the compass rose twice, once for bishops/rooks and once for queens. We actually just need to check all 8 directions once and keep a list of what piece type can move in which direction. | |||
| 2014-04-21 | chess-search-position: Move castling check for rooks out of the direction loop. | Mario Lang | |
| 2014-04-20 | chess-pos.el: Eliminate unused conditional. | Mario Lang | |
| 2014-04-20 | chess-pos.el: Collapse two chess-pos-piece-p calls into one chess-pos-piece ↵ | Mario Lang | |
| call. Unexpected but true, this increases performance noticeably. | |||
| 2014-04-20 | chess-pos.el: Refactor/simplify 10x12 code. | Mario Lang | |
| 2014-04-20 | chess-pos.el: Convert 3 more chess-incr-index calls to chess-next-index. | Mario Lang | |
| 2014-04-20 | chess-pos.el: Convert 2 more calls to chess-incr-index to chess-next-index. | Mario Lang | |
| 2014-04-20 | chess-pos.el: Convert 4 more chess-incr-index calls to chess-next-index. | Mario Lang | |
| 2014-04-19 | chess-knight-directions: New constant. | Mario Lang | |
| 2014-04-19 | chess-pos.el: Define constant lists of directions various pieces can move to. | Mario Lang | |
| This avoid useless consing and makes things a bit more reusable. | |||
| 2014-04-19 | chess-next-index: A 10x12 mailbox based function for advancing indices. | Mario Lang | |
| This one is a lot faster then chess-incr-index. Casual replacing in some caller sites yields about 30% performance improvement, more to be gained if more callers are converted. | |||
| 2014-04-18 | chess-pos-move: Really remove castling ability if rook has been moved. | Mario Lang | |
| This one was *very subtle. Looking at the code, we already tried to prevent this case, and it evenw orked for *some* instances. The problem is that castling flags are boolean in the position structure, chess-pos-can-castle determines the rook location from the position if castling flag is true. But we have already moved the rook around in chess-pos-move before we do the fixup stuff, so chess-pos-can-castle is just wrong in some cases. Fix is simple, call chess-pos-can-castle before we modify the position, and use these values later. This fixes the remaining perft mixmatches. | |||
| 2014-04-07 | chess-search-position: Also consider opponent king moves when checking for ↵ | Mario Lang | |
| check. With this the rule that there always needs to be one square between kings is honours in chess-legal-plies. Without this fix, a move next to the opponents king was considered legal. | |||
| 2014-04-01 | chess-rf-to-index: Fix assertion. | Mario Lang | |
| Should be and, not or. cl-check-type is more clear anyway. | |||
| 2014-03-31 | chess-pos.el: Reorder some definitions to pacify compiler. | Mario Lang | |
| Also, actually disable assertions during compilation (as intended) which increases performance by roughly 30%. | |||
| 2014-03-30 | Fix a rather serious bug in chess-pos-move: | Mario Lang | |
| We were checking for king or rook moves to remove our castling flags if necessary, but we did not remove the opponents castling flags if we took one of their rooks. This led to rather invalid positions. You could castle with your king and the opponents piece. | |||
| 2014-03-24 | chess-pos-can-castle: Avoid error if there is no king on the board. | Mario Lang | |
| 2009-12-27 | char-valid-p is obsolete (as of Emacs 23.1); use characterp instead | Mario Lang | |
| 2008-09-01 | When byte-compiling chess-pos, set cl-optimize-speed to 9. This increases | John Wiegley | |
| the computation of chess-eco.fen by up to 50% on my system. | |||
| 2004-02-18 | (chess-pos-passed-pawns): New function. | Mario Lang | |
| 2004-01-28 | (chess-search-position): document arguments check-only and no-castling. | Mario Lang | |
| 2004-01-26 | (chess-pos-move): There was a bug in castling removal when a Rook moved, now ↵ | Mario Lang | |
| compare chess-pos-can-castle and the source square of the moving piece to figure out if we need to remove castling priveledges | |||
| 2004-01-26 | (chess-pos-legal-candidates): Remove the opponent pawn if we are capturing ↵ | Mario Lang | |
| en passant. This fixes a bug where chess-legal-plies does not find an en passant if the pawn to be captured is giving check | |||
| 2004-01-25 | Added an argument to chess-search-position, so that if we are | John Wiegley | |
| searching for the source of an algebraic move, and it is not a castle, then do not check castle moves. | |||
| 2004-01-07 | remov chess-pos-read-epd-file | Mario Lang | |
| 2004-01-03 | New function chess-pos-read-epd-file, which parses an epd file into a list ↵ | Mario Lang | |
| of positions | |||
| 2002-05-01 | *** no comment *** | John Wiegley | |
| 2002-05-01 | added a small comment | John Wiegley | |
| 2002-04-28 | *** no comment *** | John Wiegley | |
| 2002-04-26 | *** no comment *** | John Wiegley | |
| 2002-04-26 | bug fixes | John Wiegley | |
| 2002-04-25 | fix | John Wiegley | |
| 2002-04-24 | *** no comment *** | John Wiegley | |
| 2002-04-24 | *** no comment *** | John Wiegley | |
| 2002-04-24 | added support for setting EPD codes | John Wiegley | |
| 2002-04-22 | Bug fixes and reducing the TODO list. | John Wiegley | |
| 2002-04-19 | Fixes and other work. | John Wiegley | |
| 2002-04-18 | whitespace fix | John Wiegley | |
| 2002-04-18 | Many efficiency improvements and bug fixes. | John Wiegley | |
| 2002-04-17 | More general bug fixing, efficiency improvements, etc. | John Wiegley | |
| 2002-04-17 | *** no comment *** | John Wiegley | |
| 2002-04-17 | *** no comment *** | John Wiegley | |
| 2002-04-17 | *** no comment *** | John Wiegley | |
| 2002-04-16 | More efficiency improvements. | John Wiegley | |
| 2002-04-16 | Fixed pos status not being updated. | John Wiegley | |
| 2002-04-16 | Report checkmate in the modeline correctly. | John Wiegley | |
| 2002-04-16 | Removed the $ Revision strings; they are no longer necessary since I | John Wiegley | |
| tag every revision that I upload. | |||
| 2002-04-16 | Major speed improvement and efficiency work. chess-legal-plies is | John Wiegley | |
| much more memory conservative now. Reduced recursion in chess-search-position by a slight bit. | |||
| 2002-04-13 | added message catalog support | John Wiegley | |
 |
index : emacs-chess.git | |
| My fork of the Emacs-Chess package. A work-in-progress. | Craig Jennings |
| summaryrefslogtreecommitdiff |
path: root/chess-pos.el