commit 8866f3d056b249109622f7e95931d856f885e08d from: jrmu date: Sat May 06 04:00:26 2023 UTC Daily backup commit - d2d0d371dc3e7838f681d30182572bb1d0878d3f commit + 8866f3d056b249109622f7e95931d856f885e08d blob - /dev/null blob + 8612d279c6437c5ff71c52f316282f2fde1cbe20 (mode 644) --- /dev/null +++ cookbook/chess.php @@ -0,0 +1,255 @@ +'InterMap Chessboard:\{FEN\}')); + +## First, we define the Chessboard: InterMap shortcut +SDV($LinkFunctions['Chessboard:'], 'LinkIMap'); +SDV($IMap['Chessboard:'], "$PubDirUrl/chess/chessboard.php?fen=\$1"); + +## Define the pgn and {FEN} markups: +$PGNMovePattern = "[KQRBNP]?[a-h]?[1-8]?x?[a-h][1-8](?:=[KQRBNP])?|O-O-O|O-O"; +Markup('pgn', 'directives', + "/(\\d+)\\.\\s*($PGNMovePattern|\\.+)(?:[\\s+#?!]*($PGNMovePattern))?/", + "PGNMove"); +Markup('{FEN}', '>pgn', '/\\{FEN\\}/', 'FENBoard'); + +## The (:chessboard:) markup by default generates a table, since +## some PHP installations don't have GD support compiled in. +Markup('chessboard', '>{FEN}', + '/\\(:chessboard(\\s.*?)?:\\)/i', + "ChessTable"); + + +## $PGNMoves is an array of all moves (in PGN notation). The +## PGNMove($num, $white, $black) function adds moves for white and +## black into the array, removing any later moves that might be +## already present. +$PGNMoves = array(); +function PGNMove($m) { + $out = array_shift($m); + @list($num, $white, $black) = $m; + global $PGNMoves; + if ($white[0] != '.') { + $PGNMoves[$num*2-2] = $white; + array_splice($PGNMoves, $num*2-1); + } + if ($black) { + $PGNMoves[$num*2-1] = $black; + array_splice($PGNMoves, $num*2); + } + return Keep($out); +} + + +## FENBoard() plays out the moves given in $PGNMoves and returns +## the resulting position as a FEN record. Internally $board +## is maintained as a 10x10 character string, with $board{11} +## corresponding to a8 and $board{88} corresponding to h1. +## Since PGN generally gives us only the name of the piece being +## moved and the square it moved to, we have to figure out where +## that piece came from. Castling is handled by directly manipulating +## the $board to the result of the castle. The from position +## for pawn moves is computed directly by inspection, while all +## other pieces use the $legalmoves array to determine the relative +## square offsets where pieces could've come from. Once we +## figure out where the piece came from, we put the piece in its +## new position ($to) and change the old position ($from) to an +## empty square. + +function FENBoard() { + global $PGNMoves; + $num = count($PGNMoves) * 2; + # initialize the board and our allowed moves + $board = "-----------rnbqkbnr--pppppppp--........--........-" + . "-........--........--PPPPPPPP--RNBQKBNR-----------"; + $legalmoves = array( + 'K' => array(-11, -10, -9, -1, 1, 9, 10, 11), + 'Q' => array(-11, -10, -9, -1, 1, 9, 10, 11), + 'B' => array(-11, -9, 9, 11), + 'R' => array(-10, -1, 1, 10), + 'N' => array(-21, -19, -12, -8, 8, 12, 19, 21)); + + # now, walk through each move and update the board accordingly + for($i=0; $i<$num; $i++) { + $move = @$PGNMoves[$i]; # odd numbered + $isblack = $i % 2; # moves are black + if ($move == 'O-O') { # kingside castling + $board = ($isblack) + ? substr_replace($board, '.rk.', 15, 4) + : substr_replace($board, '.RK.', 85, 4); + continue; + } + if ($move == 'O-O-O') { # queenside castling + $board = ($isblack) + ? substr_replace($board, '..kr.', 11, 5) + : substr_replace($board, '..KR.', 81, 5); + continue; + } + if (preg_match( # all other moves + "/^([KQRBNP]?)([a-h]?)([1-8]?)(x?)([a-h])([1-8])(=[KQRBNP])?/", + $move, $match)) { + @list($m, $piece, $ff, $fr, $cap, $tf, $tr, $promotion) = $match; + $tf = strpos("abcdefgh", $tf)+1; + $ff = ($ff) ? strpos("abcdefgh", $ff)+1 : 0; + $to = (9-$tr)*10 + $tf; + if (!$piece) $piece = "P"; + $pp = ($isblack) ? strtolower($piece) : $piece; + if ($pp == 'P') { # white's pawn move + if ($cap) { # capture + $from = (9-$tr)*10+10+$ff; + if ($board[$to]=='.') $board[$to+10]='.'; # en passant + } + elseif ($board[$to+10]==$pp) $from=$to+10; # move + elseif ($tr==4 && $board[$to+20]==$pp) $from=$to+20; # first move + } elseif ($pp == 'p') { # black's pawn + if ($cap) { # capture + $from = (9-$tr)*10-10+$ff; + if ($board[$to]=='.') $board[$to-10]='.'; # en passant + } + elseif ($board[$to-10]==$pp) $from=$to-10; # move + elseif ($tr==5 && $board[$to-20]==$pp) $from=$to-20; # first move + } else { + # Here we look at squares along the lines for the piece + # being moved. $n contains an offset for each square along + # a valid line for the current piece. + foreach($legalmoves[$piece] as $n) { + for($from=$to+$n; $from>10 && $from<89; $from+=$n) { + # if we find the piece we're looking for, we're done + if ($board[$from] == $pp + && (!$ff || ($from%10==$ff)) + && (!$fr || ((int)($from/10)==(9-$fr)))) break 2; + # if we find anything but an empty square, try another line + if ($board[$from] != '.') continue 2; + + # kings and knights don't repeat offsets + if ($piece == 'K' || $piece == 'N') continue 2; + } + } + } + + # pawn promotions + if ($promotion) + $pp = ($isblack) ? strtolower($promotion[1]) : $promotion[1]; + + # move the piece + $board[$to] = $pp; $board[$from] = '.'; + } + } + + # now, convert the board to a FEN record + $board = PPRA(array('/-+/' =>'/', + '/\\.+/'=> 'chess_cb_length' + ), + substr($board, 11, 78)); + + # and return it + return $board; +} + +function chess_cb_length($m) { return strlen($m[0]); } + +## The ChessTable function takes a FEN string (or the current +## game position as returned by FENBoard() above) and creates an +## HTML table representing the current game position. +$ChessPieces = array( + 'k' => 'kd-60.png', 'q' => 'qd-60.png', 'r' => 'rd-60.png', + 'b' => 'bd-60.png', 'n' => 'nd-60.png', 'p' => 'pd-60.png', + 'K' => 'kl-60.png', 'Q' => 'ql-60.png', 'R' => 'rl-60.png', + 'B' => 'bl-60.png', 'N' => 'nl-60.png', 'P' => 'pl-60.png', + '.' => 'blank-60.png'); +$ChessChars = array( + 'k' => '♚', 'q' => '♛', 'r' => '♜', + 'b' => '♝', 'n' => '♞', 'p' => '♟', + 'K' => '♔', 'Q' => '♕', 'R' => '♖', + 'B' => '♗', 'N' => '♘', 'P' => '♙', + '.' => ' '); +SDV($HTMLStylesFmt['chess'], " + table.chesstable td.square1 { background-color: #cccccc; } + table.chesstable { border:1px solid #666666; line-height: 0; } "); + + +function ChessTable($m) { + global $ChessPieces, $ChessChars, $ChessPubDirUrlFmt, $FmtV; + + extract($GLOBALS['MarkupToHTML']); + $args = ParseArgs($m[1]); + + +# Some day: SDV($ChessSquareFmt, "\$PieceChar"); + SDV($ChessSquareFmt, + "\$PieceName"); + SDV($ChessDefaults, array( + 'width' => 240, 'class' => 'chesstable', + 'cellspacing' => 0, 'cellpadding' => 0)); + $args = array_merge($ChessDefaults, $args); + $fen = (@$args['']) ? $args[''][0] : FENBoard(); + $width = $args['width']; + $height = (@$args['height'] > 0) ? $args['height'] : $width; + + $tableargs = ""; + foreach(array('class', 'cellspacing', 'cellpadding', 'align', 'style') as $a) + if (isset($args[$a])) + $tableargs .= " $a='".str_replace("'", "'", $args[$a])."'"; + + ## build the 8x8 board from the FEN record + $board = str_repeat('.', 64); + $file = 0; $rank = 0; + $len = strlen($fen); + for($i=0; ($i<$len) && ($rank+$file<64); $i++) { + $k = $fen[$i]; + if (is_numeric($k) && $k > 0) { $file += $k; continue; } + if ($k == '/') { $rank += 8; $file = 0; continue; } + if ($ChessPieces[$k]) { $board[$rank+$file] = $k; $file++; } + } + + ## Now generate the table from the 8x8 board + $FmtV['$SquareWidth'] = $width / 8; + $FmtV['$SquareHeight'] = $height / 8; + for($i=0; $i<64; $i++) { + if ($i%8 == 0) $out[] = ""; + $FmtV['$PieceImg'] = $ChessPieces[$board[$i]]; + $FmtV['$PieceChar'] = $ChessChars[$board[$i]]; + $FmtV['$PieceName'] = $board[$i]; + $FmtV['$SquareColor'] = ($i + (int)($i/8)) % 2; + $out[] = FmtPageName($ChessSquareFmt, $pagename); + if ($i%8 == 7) $out[] = ""; + } + return "".Keep(implode('', $out))."
"; +} + blob - /dev/null blob + 5dfac74a1e91fa3ecc9cfc43f526410a6f7b1256 (mode 644) Binary files /dev/null and cookbook/chess.zip differ blob - /dev/null blob + 5b6e7c66c276e7610d4a73c70ec1a1f7c1003259 (mode 644) --- /dev/null +++ pub/chess/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. 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To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. 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For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. blob - /dev/null blob + f476a7a96a9bbb7bdca46fd259876b100379f711 (mode 644) Binary files /dev/null and pub/chess/bd-60.png differ blob - /dev/null blob + 7c0c463ce684dcee6c6860a66a2477252d4bd7f3 (mode 644) Binary files /dev/null and pub/chess/bl-60.png differ blob - /dev/null blob + 04a28a9d332f523a1a672c93b3def53c593bc1cb (mode 644) Binary files /dev/null and pub/chess/blank-60.png differ blob - /dev/null blob + d71762bdbb755a46144375ca042bc1ef270d04f1 (mode 644) --- /dev/null +++ pub/chess/chessboard.php @@ -0,0 +1,116 @@ + 240, # chessboard width + 'fen' => 'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR', # default position + 'dark' => 'cccccc', # dark squares + 'light' => 'ffffff', # light squares + 'border' => '666666', # border color + 'pieces' => 'pieces-60.gif', # image file + ); + + # merge the request parameters with the defaults + $opt = array_merge($defaults, (array)$_REQUEST); + + # set the values we'll use + $w = $opt['w']; + $h = (@$opt['h']) ? $opt['h'] : $w; + $fen = $opt['fen']; + $dark = hexdec($opt['dark']); + $light = hexdec($opt['light']); + + # if no FEN position specified, use the default + if (!$fen) { $fen = $defaults['fen']; } + + + # load the piece images + $piece = imagecreatefromgif($defaults['pieces']); + + # determine the width and height of a single piece + $pw = imagesx($piece)/12; + $ph = imagesy($piece); + + # build an 8x8 board to draw pieces on + $bw = $pw * 8; $bh = $ph * 8; + $board = imagecreatetruecolor($bw, $bh); + + # draw the squares + imagefilledrectangle($board, 0, 0, $bw, $bh, $dark); + for($i = 0; $i < 8; $i += 2) { + for($j = 0; $j < 8; $j += 2) { + $x = $i * $pw; $y = $j * $ph; + imagefilledrectangle($board, $x, $y, $x+$pw, $y+$ph, $light); + $x += $pw; $y += $ph; + imagefilledrectangle($board, $x, $y, $x+$pw, $y+$ph, $light); + } + } + + # locate the starting horizontal offset of each piece by name + $str = "KQRBNPkqrbnp"; + for($i=0; $i < 12; $i++) { $k = $str[$i]; $pk[$k] = $i * $pw; } + + # Now, walk through the FEN record and draw the pieces in the + # appropriate position. + $file = 0; $rank = 0; + $len = strlen($fen); + for($i=0; $i<$len; $i++) { + $k = $fen[$i]; + if (is_numeric($k) && $k > 0) { $file+=$k; continue; } + if ($k == '/') { $rank++; $file=0; continue; } + if (isset($pk[$k])) { + imagecopy($board, $piece, $file*$pw, $rank*$ph, $pk[$k], 0, $pw, $ph); + $file++; + } + } + imagedestroy($piece); + + # resize the board if needed + if ($w != $bw || $h != $bh) { + $old = $board; + $board = imagecreatetruecolor($w, $h); + imagecopyresampled($board, $old, 0, 0, 0, 0, $w, $h, $bw, $bh); + imagedestroy($old); + } + + # draw a border if requested + if ($opt['border']) + imagerectangle($board, 0, 0, $w-1, $h-1, hexdec($opt['border'])); + + # return the completed chessboard image + header("Content-type: image/gif"); + imagegif($board); + imagedestroy($board); + blob - /dev/null blob + cd527739b11ce5174a546b2c4f2329a36e8b3b25 (mode 644) Binary files /dev/null and pub/chess/kd-60.png differ blob - /dev/null blob + ddb730a2636765c68263e88a4de46e1ab496963a (mode 644) Binary files /dev/null and pub/chess/kl-60.png differ blob - /dev/null blob + 253e98ebf5403eaf6eb11eeb8cb2f51d8b921239 (mode 644) Binary files /dev/null and pub/chess/nd-60.png differ blob - /dev/null blob + 3761c020af036f4fe5aaca4058445e814a27d27b (mode 644) Binary files /dev/null and pub/chess/nl-60.png differ blob - /dev/null blob + cc392f97a88f85810ffc932708055ffb15b8b1df (mode 644) Binary files /dev/null and pub/chess/pd-60.png differ blob - /dev/null blob + 0821f78a1d8e70fb92d92c3f85a926e5aa4206d5 (mode 644) Binary files /dev/null and pub/chess/pieces-60.gif differ blob - /dev/null blob + d183f30aed40217777b449d1b1b29e6a0ea3df38 (mode 644) Binary files /dev/null and pub/chess/pl-60.png differ blob - /dev/null blob + b2e1067c8dbdcdcfd3e6784e580a01581ec2d171 (mode 644) Binary files /dev/null and pub/chess/qd-60.png differ blob - /dev/null blob + e97d6c401ce79ae33c68c4d7c60dfa2a5c760004 (mode 644) Binary files /dev/null and pub/chess/ql-60.png differ blob - /dev/null blob + 73a29d87553d4337455f8a8d117ea5bb4b63afa6 (mode 644) Binary files /dev/null and pub/chess/rd-60.png differ blob - /dev/null blob + f3d0ad6e84a891109944fa6fc431d7f5ec99307a (mode 644) Binary files /dev/null and pub/chess/rl-60.png differ