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chess.php
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chess.php
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<?php
// $Id: chess.php,v 1.15 2013/12/08 14:00:00 gitjake Exp $
/*
This file is part of WebChess. http://webchess.sourceforge.net
Copyright 2010 Jonathan Evraire, Rodrigo Flores
WebChess 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 3 of the License, or
(at your option) any later version.
WebChess 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 WebChess. If not, see <http://www.gnu.org/licenses/>.
*/
session_start();
/* load settings */
if (!isset($_CONFIG)) {
require 'config.php';
include_once 'lang.php';
}
/* define constants */
require 'chessconstants.php';
/* include outside functions */
if (!isset($_CHESSUTILS))
require 'chessutils.php';
require 'gui.php';
require 'chessdb.php';
require 'move.php';
require 'undo.php';
/* allow WebChess to be run on PHP systems < 4.1.0, using old http vars */
fixOldPHPVersions();
/* check session status */
require 'sessioncheck.php';
/* check if loading game */
if (isset($_POST['gameID']))
$_SESSION['gameID'] = $_POST['gameID'];
/* debug flag */
define ("DEBUG", 0);
/* connect to database */
require 'connectdb.php';
/* get White's nick */
$tmpNick = mysql_query("SELECT nick FROM " . $CFG_TABLE[players] . ", " . $CFG_TABLE[games] . " WHERE playerID = whitePlayer AND gameID = " . $_SESSION['gameID']);
$whiteNick = mysql_result($tmpNick, 0);
/* get Black's nick */
$tmpNick = mysql_query("SELECT nick FROM " . $CFG_TABLE[players] . ", " . $CFG_TABLE[games] . " WHERE playerID = blackPlayer AND gameID = " . $_SESSION['gameID']);
$blackNick = mysql_result($tmpNick, 0);
/* load game */
$isInCheck = (isset($_POST['isInCheck']) && ($_POST['isInCheck'] == 'true'));
$isCheckMate = false;
$isPromoting = false;
$isUndoing = false;
loadHistory();
loadGame();
processMessages();
if ($isUndoing)
{
doUndo();
saveGame();
}
elseif (!empty($_POST['promotion']) && isset($_POST['toRow']) && ('' !== $_POST['toRow']) && isset($_POST['toCol']) && ('' !== $_POST['toCol']))
{
savePromotion();
$board[$_POST['toRow']][$_POST['toCol']] = $_POST['promotion'] | ($board[$_POST['toRow']][$_POST['toCol']] & BLACK);
saveGame();
}
elseif (
isset($_POST['fromRow']) && isset($_POST['fromCol']) && isset($_POST['toRow']) && isset($_POST['toCol'])
&& ('' !== $_POST['fromRow']) && ('' !== $_POST['fromCol']) && ('' !== $_POST['toRow']) && ('' !== $_POST['toCol'])
) // END elseif
{
/* ensure it's the current player moving */
/* NOTE: if not, this will currently ignore the command... */
/* perhaps the status should be instead? */
/* (Could be confusing to player if they double-click or something */
$tmpIsValid = true;
if (($numMoves == -1) || ($numMoves % 2 == 1))
{
/* White's move... ensure that piece being moved is white */
if ((($board[$_POST['fromRow']][$_POST['fromCol']] & BLACK) != 0) || ($board[$_POST['fromRow']][$_POST['fromCol']] == 0))
/* invalid move */
$tmpIsValid = false;
}
else
{
/* Black's move... ensure that piece being moved is black */
if ((($board[$_POST['fromRow']][$_POST['fromCol']] & BLACK) != BLACK) || ($board[$_POST['fromRow']][$_POST['fromCol']] == 0))
/* invalid move */
$tmpIsValid = false;
}
if ($tmpIsValid)
{
saveHistory();
doMove();
saveGame();
}
}
elseif($history[$numMoves]['curPiece'] == 'pawn' && $history[$numMoves]['promotedTo'] == null)
{ // Incomplete promotion?
if($history[$numMoves]['toRow'] == 7 || $history[$numMoves]['toRow'] == 0)
{
$isPromoting = true;
}
}
mysql_close();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="pragma" content="no-cache" />
<meta http-equiv="Page-Exit" content="blendTrans(Duration=0.18)">
<link rel="stylesheet" href="chess.css" type="text/css" />
<?php
echo("<link rel='stylesheet' href='images/");
echo($_SESSION['pref_theme'] . "/wctheme.css' type='text/css' />\n");
/* find out if it's the current player's turn */
if (( (($numMoves == -1) || (($numMoves % 2) == 1)) && ($playersColor == "white"))
|| ((($numMoves % 2) == 0) && ($playersColor == "black")))
$isPlayersTurn = true;
else
$isPlayersTurn = false;
if ($_SESSION['isSharedPC'])
echo '<title>', APP_NAME, "</title>\n";
else if ($isPlayersTurn)
echo '<title>', APP_NAME . gettext(' - Your Move'), "</title>\n";
else
echo '<title>', APP_NAME . gettext(" - Opponent's Move"), "</title>\n";
?>
<script type="text/javascript">
<?php
echo("var cfgImageExt = '$CFG_IMAGE_EXT';\n");
/* transfer board data to javacript */
writeJSboard();
/* if it's not the player's turn, enable auto-refresh */
$autoRefresh = !$isPlayersTurn && !isBoardDisabled() && !$_SESSION['isSharedPC'];
echo('var autoreload = ');
if(!$autoRefresh)
echo('0');
else if ($_SESSION['pref_autoreload'] >= $CFG_MINAUTORELOAD)
echo ($_SESSION['pref_autoreload']);
else
echo ($CFG_MINAUTORELOAD);
echo(";\n");
writeJShistory();
drawboard();
echo 'var gameId = ' . $_SESSION['gameID'] . ";\n";
echo 'var players = "' . $whiteNick . ' - ' . $blackNick . "\";\n";
echo 'var playersColor = "' . $playersColor . "\";\n";
echo 'var isPromoting = "'.$isPromoting. "\";\n";
echo 'var isKingInCheck = "'.$isInCheck. "\";\n";
echo 'var isGameOver = "'.$isGameOver. "\";\n";
echo 'var historyLayout = "'.$_SESSION['pref_historylayout']. "\";\n";
?>
// I18n Messages. The translation lang is set in I18N_LOCALE and requires you to have the matching webchess.mo
var i18nMessages = {
"Start of game": "<?php echo gettext('Start of game'); ?>"
,"Start": "<?php echo gettext('Start'); ?>"
,"Go back five halfmoves": "<?php echo gettext('Go back five halfmoves'); ?>"
,"Go back one halfmove": "<?php echo gettext('Go back one halfmove'); ?>"
,"Go forward one halfmove": "<?php echo gettext('Go forward one halfmove'); ?>"
,"Go forward five halfmoves": "<?php echo gettext('Go forward five halfmoves'); ?>"
,"End of game": "<?php echo gettext('End of game'); ?>"
,"End": "<?php echo gettext('End'); ?>"
};
<?php
writeStatus();
writeHistory();
// Captured pieces..
require 'capt.php';
?>
</script>
<script type="text/javascript" src="javascript/domready.js"></script>
<script type="text/javascript" src="javascript/chessutils.js"></script>
<script type="text/javascript" src="javascript/commands.js"></script>
<script type="text/javascript" src="javascript/validation.js"></script>
<?php
if($isPlayersTurn || $_SESSION['isSharedPC'] || $isPromoting)
echo('
<script type="text/javascript" src="javascript/isCheckMate.js"></script>');
if(!isBoardDisabled() || $_SESSION['isSharedPC'])
echo('
<script type="text/javascript" src="javascript/squareclicked.js"></script>');
?>
<script type="text/javascript" src="javascript/board.js"></script>
</head>
<body>
<div id="wrapper">
<div id="header">
<div id="heading"><?php echo APP_NAME; ?></div>
</div>
<?php require 'info.php'; ?>
<div id="boardsection" align="center">
<form name="gamedata" method="post" action="chess.php">
<?php
if ($isPromoting && (!$isPlayersTurn || $_SESSION['isSharedPC'])) // Write promotion dialog only to the correct player
writePromotion();
if ($isUndoRequested)
writeUndoRequest();
if ($isDrawRequested)
writeDrawRequest();
?>
<div id="chessboard"></div>
<div id="moveinfo">
<div id="curmove"> </div>
<div id="whosmove"> </div>
</div>
<div id="gamebuttons">
<input type="button" id="btnUndo" class="button" value="Request Undo" disabled="disabled" />
<input type="button" id="btnDraw" class="button" value="Request Draw" disabled="disabled" />
<input type="button" id="btnResign" class="button" value="Resign" disabled="disabled" />
</div>
<input type="hidden" name="requestUndo" value="no" />
<input type="hidden" name="requestDraw" value="no" />
<input type="hidden" name="resign" value="no" />
<input type="hidden" name="fromRow" value="<?php if ($isPromoting) echo ($_POST['fromRow']); ?>" />
<input type="hidden" name="fromCol" value="<?php if ($isPromoting) echo ($_POST['fromCol']); ?>" />
<input type="hidden" name="toRow" value="<?php if ($isPromoting) echo ($_POST['toRow']); ?>" />
<input type="hidden" name="toCol" value="<?php if ($isPromoting) echo ($_POST['toCol']); ?>" />
<input type="hidden" name="isInCheck" value="false" />
<input type="hidden" name="isCheckMate" value="false" />
</form>
<div id="gamenav"></div>
<div><?echo gettext('When castling, just move the king (the rook will move automatically).');?></div>
<div id="captheading"><?echo gettext('Captured pieces'); ?></div>
<div id="captures"></div>
</div>
<div id="content">
<div id="players" class="move_header"></div>
<div id="gameid" class="move_header"></div>
<div id="gamebody" class="move_header"></div>
<div id="checkmsg"></div>
<div id="statusmsg"></div>
<form name="gamemenu" method="post" action="chess.php" style="text-align:center;">
<input type="button" id="btnMainMenu" class="button" value="Menu" disabled="disabled" />
<input type="button" id="btnReload" class="button" value="Reload" disabled="disabled" />
<input type="button" id="btnPGN" class="button" value="PGN" disabled="disabled" />
<input type="button" id="btnLogout" class="button" value="Logout" disabled="disabled" />
<input type="hidden" name="ToDo" value="Logout" /> <!-- NOTE: this field is only used to Logout -->
</form>
</div>
<?php include_once('footer.php'); ?>
</div>
</body>
</html>