HTML and CSS.*/
$dbfile = './.htches';
$table = 'games';
$starting_board =
"OTSEGSTO\n".
"AAAAAAAA\n".
"________\n".
"________\n".
"________\n".
"________\n".
"pppppppp\n".
"rnbqkbnr";
$action = false;
$lastServerMove = time();
$game_id = 0;
$formaction = './';
if(isset($_REQUEST['game_id'])) $game_id = $_REQUEST['game_id'];
$db = sqlite_open($dbfile, 0666, $sqliteerror);
if(!$db) {
die("Could not open/create db file. Error was $sqliteerror");
} else {
if(isset($_REQUEST['id'])) {
$game_id = intval($_REQUEST['id']); // prevent SQL injection
}
}
if(isset($_REQUEST['action'])) {
$action = $_REQUEST['action'];
}
/*
* $move is of the form "p@b5-d5" or "P@e2xb@d3"
*/
function getUpdatedBoard($oldBoard, $move) {
$eachChar = "//";
$offset = 0;
$board = array( 'a' => array(''), 'b' => array(''), 'c' => array(''), 'd' => array(''),
'e' => array(''), 'f' => array(''), 'g' => array(''), 'h' => array('') );
foreach($board as $letter => $row) {
for($i = 0; $i < 8; $i++) {
if($oldBoard[$offset++] == "\n") $offset++;
$board[$letter][] = $oldBoard[$offset]; // add to end of row
}
}
$piece = $move[0];
$info = preg_split("/[x\-@]/", $move); // length 3 for move, 4 for capture
$movingPiece = $info[0];
$oldPosition = preg_split($eachChar, $info[1], -1, PREG_SPLIT_NO_EMPTY);
$newPosition = preg_split($eachChar, $info[ count($info) - 1 ], -1, PREG_SPLIT_NO_EMPTY);
// "b" "5"
$board[ $oldPosition[0] ][ $oldPosition[1] ] = '_';
$board[ $newPosition[0] ][ $newPosition[1] ] = $movingPiece;
foreach($board as $letter => $row) {
$board[$letter] = implode("", $row);
}
$board = implode("\n", $board);
return $board;
}
session_start();
if(isset($_SESSION['username'])) {
$user = $_SESSION['username'];
} else if(!isset($_POST['username'])) {
?>
Log In to Che§
";
echo "\nWhite's name is $user
";
$game_id = sqlite_last_insert_rowid($db);
if(!empty($blackname)) echo "\nBlack's name is $blackname
";
else "\nBlack's name was unspecified -- anyone will be able to join the game.
";
echo "\nGame id is $game_id
";
echo "
";
echo '';
} else if($action == 'move') {
$move = $_REQUEST['move'] or die("no move supplied");
$row = sqlite_array_query($db, "select * from $table where id = $game_id", SQLITE_ASSOC);
$row = $row[0]; // first row returned...
$isWhite = $row['white'] == $user;
$isBlack = $row['black'] == $user;
$userColor = ($isWhite) ? 'white' : 'black';
if( $isWhite || $isBlack ) {
$suffix = ($isWhite) ? "\t" : "\n";
$append = $move . $suffix;
$moves = $row['moves'];
$lastChar = substr($moves, -1);
if( empty($moves) // first move
|| ($lastChar == "\n" && $isWhite) // or
|| ($lastChar == "\t" && $isBlack)) { // last move by other player...
$moves .= $append;
$moves = str_replace("\n", "\\\n", $moves); // newline makes string split across multiple lines
// must be "continued" with a preceding backslash
$newBoard = getUpdatedBoard($row['board'], $move);
$timestamp = time();
sqlite_exec($db, "update $table set moves = moves || '$append' , " .
"board = '$newBoard' , " .
"lastMoveTime = $timestamp ".
"where id = $game_id");
if(preg_match('/(xk|x0)/', $move)) { // checkmate/captured king
sqlite_exec($db, "update $table set status = 'finished', winner = $userColor where id = $game_id");
} else {
echo "var moves = '$moves'; ";
"stringBoard = '$newBoard'; ".
"server.init(); ".
'setActivePlayer("'; echo ($isWhite) ? 'black' : 'white'; echo '"); '.
'board = boardStringToArray(stringBoard); setPiecesFromArray(board);';
}
} else {
die("alert('Not your turn, silly!');");
}
} else { die("alert('Observers can't make moves, silly!');"); }
} else if($action == 'play') {
$row = sqlite_array_query($db, "select * from $table where id = $game_id", SQLITE_ASSOC);
$row = $row[0]; // first row returned...
$isWhite = $row['white'] == $user;
$isBlack = $row['black'] == $user;
$activePlayer = ( empty($row['moves']) || substr($row['moves'], -1) == "\n" )
? 'white'
: 'black';
?>
Che§<?php echo " -- Game $game_id, $row[white] vs. $row[black]"; ?>
It is currently White's turn.
"; } ?>
" style="background-color: #daa502;">
| → | h | g | f | e | d | c | b | a | ← |
| 8 | | | | | | | | | 8 |
| 7 | | | | | | | | | 7 |
| 6 | | | | | | | | | 6 |
| 5 | | | | | | | | | 5 |
| 4 | | | | | | | | | 4 |
| 3 | | | | | | | | | 3 |
| 2 | | | | | | | | | 2 |
| 1 | | | | | | | | | 1 |
| ↓ | h | g | f | e | d | c | b | a | ↓ |
">
15 seconds till update
'.time();
echo "
| id |
white |
black |
last move date |
status |
winner |
";
while (sqlite_has_more($result)) {
$row = sqlite_fetch_array($result, SQLITE_ASSOC);
$status = $row['status'];
if($status == 'inprogress'
||($status == 'open' && $type != 'mine')
||($status == 'closed' && $type == 'mine'))
$status = "".$status."";
$whitestyle = ($row['white'] == $user) ? ' style="font-weight: bold;"' : '';
$blackstyle = ($row['black'] == $user) ? ' style="font-weight: bold;"' : '';
echo "
| $row[id] |
$row[white]
$row[black]
". date('Y-n-j h:i:sa' , $row['lastMoveTime']) ." |
$status |
$row[winner] |
";
}
echo "
";
}
} else {
if(isset($_GET['needupdate'])) {
$lastClientMove = intval($_GET['needupdate']);
$row = sqlite_array_query($db, "SELECT * FROM $table WHERE id = $game_id");
if(!empty($row)) {
$row = $row[0];
$lastServerMove = intval($row['lastMoveTime']);
} else { die( "/* No timestamp existed for the selected game (id=$game_id), ".
"most likely because that game was deleted or never created. */"); }
$needsUpdate = (($lastServerMove > $lastClientMove)
? true
: false);
if(!$needsUpdate) {
echo '/* no update */';
return;
} else {
if($row['winner'] != 'none') {
echo "server.updater.stop(); alert('Game Over. Winner is {$row['winner']}. Thanks for playing...');";
}
// empty means white's turn; ending with newline means white's turn.
$activePlayer = ( empty($row['moves']) || substr($row['moves'], -1) == "\n" )
? 'white'
: 'black';
preg_match('/[@\-](..)\s$/', $row['moves'], $matchInfo);
$lastMovedPiece = $matchInfo[1];
$response = "server.updater.lastKnownUpdate = $lastServerMove; " .
"stringBoard = '{$row['board']}'; " .
"board = boardStringToArray(stringBoard); " .
"setPiecesFromArray(board); " .
"setActivePlayer('$activePlayer'); " .
"removeAttributesFromElements(['lastMovedPiece'], 'td'); " .
"document.getElementById('$lastMovedPiece').setAttribute('lastMovedPiece', 'true');";
echo $response;
}
exit;
} else {
?>
Che§
You are
List Games
Create New Game