public function cmp_magic($a, $b)
{
return game_strlen($a) + mt_rand(0, 3) - (game_strlen($b) - mt_rand(0, 1));
}
function game_sudoku_check_number($id, $game, $attempt, $sudoku, $pos, $num, $context)
{
global $DB;
$correct = game_substr($sudoku->data, $pos - 1, 1);
if ($correct != $num) {
game_sudoku_play($id, $game, $attempt, $sudoku, false, false, $context);
return;
}
$leng = game_strlen($sudoku->guess);
$lend = game_strlen($sudoku->data);
if ($leng < $lend) {
$sudoku->guess .= str_repeat(' ', $lend - $leng);
}
game_setchar($sudoku->guess, $pos - 1, $correct);
if (!$DB->set_field_select('game_sudoku', 'guess', $sudoku->guess, "id={$sudoku->id}")) {
print_error('game_sudoku_check_number: Cannot update table game_sudoku');
}
game_sudoku_play($id, $game, $attempt, $sudoku, false, false, $context);
}
public function loadcryptex($crossm, &$mask, &$corrects, &$language)
{
global $DB;
$questions = array();
$corrects = array();
$mask = str_repeat('0', $crossm->cols * $crossm->rows);
if ($recs = $DB->get_records('game_queries', array('attemptid' => $crossm->id))) {
foreach ($recs as $rec) {
if ($rec->questiontext == '') {
$rec->questiontext = ' ';
}
$key = $this->gethash($rec->questiontext) . '-' . $rec->answertext . '-' . $rec->id;
$questions[$key] = $rec;
$word = $rec->answertext;
$pos = $crossm->cols * ($rec->row - 1) + ($rec->col - 1);
$len = game_strlen($word);
$found = $rec->answertext == $rec->studentanswer;
for ($i = 0; $i < $len; $i++) {
$c = $found ? '1' : '2';
if (game_substr($mask, $pos, 1) != '1') {
game_setchar($mask, $pos, $c);
}
$pos += $rec->horizontal ? 1 : $crossm->cols;
}
if ($found) {
$corrects[$rec->id] = 1;
}
if ($language == '') {
$language = game_detectlanguage($rec->answertext);
}
}
ksort($questions);
}
return $questions;
}
function hangman_existall($str, $strfind)
{
$n = game_strlen($str);
for ($i = 0; $i < $n; $i++) {
$pos = game_strpos($strfind, game_substr($str, $i, 1));
if ($pos === false) {
return false;
}
}
return true;
}
function game_cross_unpackpuzzle($g)
{
$ret = "";
$len = game_strlen($g);
while ($len) {
for ($i = 0; $i < $len; $i++) {
$c = game_substr($g, $i, 1);
if ($c >= '1' and $c <= '9') {
if ($i > 0) {
//found escape character
if (game_substr($g, $i - 1, 1) == '/') {
$g = game_substr($g, 0, $i - 1) . game_substr($g, $i);
$i--;
$len--;
continue;
}
}
break;
}
}
if ($i < $len) {
//found the start of a number
for ($j = $i + 1; $j < $len; $j++) {
$c = game_substr($g, $j, 1);
if ($c < '0' or $c > '9') {
break;
}
}
$count = game_substr($g, $i, $j - $i);
$ret .= game_substr($g, 0, $i) . str_repeat('_', $count);
$g = game_substr($g, $j);
$len = game_strlen($g);
} else {
$ret .= $g;
break;
}
}
return $ret;
}
function updatecrossquestions(&$rec, &$g, &$pos, &$correctletters, &$wrongletters, &$restletters, $game, $attempt, $crossrec, $loadfromdb)
{
global $DB, $USER;
$word = $rec->answertext;
$len = game_strlen($word);
if ($loadfromdb) {
$guess = $rec->studentanswer;
} else {
$guess = game_substr($g, $pos, $len);
}
$len_guess = game_strlen($guess);
$pos += $len;
$is_empty = true;
for ($i = 0; $i < $len; $i++) {
if ($i < $len_guess) {
$letterguess = game_substr($guess, $i, 1);
} else {
$letterguess = " ";
}
if ($letterguess != ' ') {
$is_empty = false;
}
$letterword = game_substr($word, $i, 1);
if ($letterword != $letterguess) {
if ($letterguess != ' ' and $letterguess != '_') {
$wrongletters++;
}
game_setchar($guess, $i, '_');
$restletters++;
} else {
if ($letterguess == ' ') {
if ($guess == $word) {
$correctletters++;
} else {
//$wrongletters++;
//game_setchar( $guess, $i, '_');
}
} else {
$correctletters++;
}
}
}
if ($is_empty) {
return;
}
if ($rec->studentanswer == $guess) {
return;
}
$rec->studentanswer = $guess;
$updrec = new stdClass();
$updrec->studentanswer = $guess;
$updrec->id = $rec->id;
if (!$DB->update_record('game_queries', $updrec, $rec->id)) {
print_error('Update game_queries: not updated');
}
$score = $correctletters / $len;
game_update_queries($game, $attempt, $rec, $score, $guess);
}
$allletters .= '-';
}
echo "var questions = new Array({$questions});\r";
echo "var words = new Array({$words});\r";
if ($html->type == 'hangmanp') {
echo "var images = new Array({$images});\r";
}
?>
var to_guess = "";
var display_word = "";
var used_letters = "";
var wrong_guesses = 0;
var used_letters_all = "";
var all_letters = new Array(<?php
$len = game_strlen($allletters);
for ($i = 0; $i < $len; $i++) {
if ($i > 0) {
echo ',';
}
echo '"' . game_substr($allletters, $i, 1) . '"';
}
?>
);
function selectLetter(l)
{
if (can_play == false)
{
}
function hangman_showpage(&$done, &$correct, &$wrong, $max, &$wordline, &$wordline2, &$links, $game, &$attempt, &$hangman, &$query, $onlyshow, $showsolution, $context)
{
global $USER, $CFG, $DB;
$id = optional_param('id', 0, PARAM_INT);
// Course Module ID.
$word = $query->answertext;
$newletter = optional_param('newletter', "", PARAM_TEXT);
if ($newletter == '_') {
$newletter = ' ';
}
if ($newletter == 'A') {
$letters = $hangman->letters;
if ($newletter != null) {
if (game_strpos($letters, $newletter) === false) {
$letters .= $newletter;
}
if (game_strpos($letters, 'Ã') === false) {
$letters .= 'Ã';
}
}
} elseif ($newletter == 'C') {
$letters = $hangman->letters;
if ($newletter != null) {
if (game_strpos($letters, $newletter) === false) {
$letters .= $newletter;
}
if (game_strpos($letters, 'Ç') === false) {
$letters .= 'Ç';
}
}
} else {
$letters = $hangman->letters;
if ($newletter != null) {
if (game_strpos($letters, $newletter) === false) {
$letters .= $newletter;
}
}
}
$links = "";
$alpha = $hangman->allletters;
$wrong = 0;
if ($query->questionid) {
$questiontext = str_replace(array("\\'", '\\"'), array("'", '"'), $query->questiontext);
$query->questiontext = game_filterquestion($questiontext, $query->questionid, $context->id, $game->course);
} else {
$cmglossary = get_coursemodule_from_instance('glossary', $game->glossaryid, $game->course);
$contextglossary = game_get_context_module_instance($cmglossary->id);
$query->questiontext = game_filterglossary(str_replace('\\"', '"', $query->questiontext), $query->glossaryentryid, $contextglossary->id, $game->course);
}
if ($game->param5) {
$s = trim(game_filtertext($query->questiontext, $game->course));
if ($s != '.' and $s != '') {
echo "<br/><b>" . $s . '</b>';
}
if ($query->attachment != '') {
$file = "{$CFG->wwwroot}/file.php/{$game->course}/moddata/{$query->attachment}";
echo "<img src=\"{$file}\" />";
}
echo "<br/><br/>";
}
$wordline = $wordline2 = "";
$len = game_strlen($word);
$done = 1;
$answer = '';
$correct = 0;
for ($x = 0; $x < $len; $x++) {
$char = game_substr($word, $x, 1);
if ($showsolution) {
$wordline2 .= $char == " " ? ' ' : $char;
$done = 0;
}
if (game_strpos($letters, $char) === false) {
$wordline .= "_<font size=\"1\"> </font>\r\n";
$done = 0;
$answer .= '_';
} else {
$wordline .= $char == " " ? ' ' : $char;
$answer .= $char;
$correct++;
}
}
$lenalpha = game_strlen($alpha);
$fontsize = 5;
for ($c = 0; $c < $lenalpha; $c++) {
$char = game_substr($alpha, $c, 1);
if (game_strpos($letters, $char) === false) {
// User doesn't select this character.
$params = 'id=' . $id . '&newletter=' . urlencode($char);
if ($onlyshow or $showsolution) {
$links .= $char;
} else {
$links .= "<font size=\"{$fontsize}\"><a href=\"attempt.php?{$params}\">{$char}</a></font>\r\n";
}
continue;
}
if ($char == 'A') {
if (game_strpos($word, $char) === false and game_strpos($word, 'Ã') === false) {
$links .= "\r\n<font size=\"{$fontsize}\" color=\"red\">{$char} </font>";
$wrong++;
} else {
$links .= "\r\n<B><font size=\"{$fontsize}\">{$char} </font></B> ";
}
} elseif ($char == 'C') {
if (game_strpos($word, $char) === false and game_strpos($word, 'Ç') === false) {
$links .= "\r\n<font size=\"{$fontsize}\" color=\"red\">{$char} </font>";
$wrong++;
} else {
$links .= "\r\n<B><font size=\"{$fontsize}\">{$char} </font></B> ";
}
} elseif (game_strpos($word, $char) === false) {
$links .= "\r\n<font size=\"{$fontsize}\" color=\"red\">{$char} </font>";
$wrong++;
} else {
$links .= "\r\n<B><font size=\"{$fontsize}\">{$char} </font></B> ";
}
}
$finishedword = ($done or $wrong >= $max);
$finished = false;
$updrec = new stdClass();
$updrec->id = $hangman->id;
$updrec->letters = $letters;
if ($finishedword) {
if ($hangman->finishedword == 0) {
// Only one time per word increace the variable try.
$hangman->try = $hangman->try + 1;
if ($hangman->try > $hangman->maxtries) {
$finished = true;
}
if ($done) {
$hangman->corrects = $hangman->corrects + 1;
$updrec->corrects = $hangman->corrects;
}
}
$updrec->try = $hangman->try;
$updrec->finishedword = 1;
}
$query->percent = ($correct - $wrong / $max) / game_strlen($word);
if ($query->percent < 0) {
$query->percent = 0;
}
if ($onlyshow or $showsolution) {
return;
}
if (!$DB->update_record('game_hangman', $updrec)) {
print_error("hangman_showpage: Can't update game_hangman id={$updrec->id}");
}
if ($done) {
$score = 1;
} else {
if ($wrong >= $max) {
$score = 0;
} else {
$score = -1;
}
}
game_updateattempts($game, $attempt, $score, $finished);
game_update_queries($game, $attempt, $query, $score, $answer);
}
function game_cryptex_play($id, $game, $attempt, $cryptexrec, $crossm, $updateattempt = false, $onlyshow = false, $showsolution = false, $context, $print = false, $showhtmlprintbutton = true)
{
global $CFG, $DB;
if ($game->toptext != '') {
echo $game->toptext . '<br>';
}
echo '<br>';
$cryptex = new CryptexDB();
$language = $attempt->language;
$questions = $cryptex->loadcryptex($crossm, $mask, $corrects, $attempt->language);
if ($language != $attempt->language) {
if (!$DB->set_field('game_attempts', 'language', $attempt->language, array('id' => $attempt->id))) {
print_error("game_cross_play: Can't set language");
}
}
if ($attempt->language != '') {
$wordrtl = game_right_to_left($attempt->language);
} else {
$wordrtl = right_to_left();
}
$reverseprint = $wordrtl != right_to_left();
if ($reverseprint) {
$textdir = 'dir="' . ($wordrtl ? 'rtl' : 'ltr') . '"';
} else {
$textdir = '';
}
$len = game_strlen($mask);
// The count1 means there is a guested letter.
// The count2 means there is a letter that not guessed.
$count1 = $count2 = 0;
for ($i = 0; $i < $len; $i++) {
$c = game_substr($mask, $i, 1);
if ($c == '1') {
$count1++;
} else {
if ($c == '2') {
$count2++;
}
}
}
if ($count1 + $count2 == 0) {
$gradeattempt = 0;
} else {
$gradeattempt = $count1 / ($count1 + $count2);
}
$finished = $count2 == 0;
if ($finished === false && $game->param8 > 0) {
$found = false;
foreach ($questions as $q) {
if ($q->tries < $game->param8) {
$found = true;
}
}
if ($found == false) {
$finished = true;
// Rich max tries.
}
}
if ($updateattempt) {
game_updateattempts($game, $attempt, $gradeattempt, $finished);
}
if ($onlyshow == false and $showsolution == false) {
if ($finished) {
game_cryptex_onfinished($id, $game, $attempt, $cryptexrec);
}
}
?>
<style type="text/css"><!--
.answerboxstyle {
background-color: #FFFAF0;
border-color: #808080;
border-style: solid;
border-width: 1px;
display: block;
padding: .75em;
width: 240pt;
}
--></style>
<?php
$grade = round(100 * $gradeattempt);
echo get_string('grade', 'game') . ' ' . $grade . ' %';
echo '<br>';
echo '<table border=0>';
echo '<tr><td>';
$cryptex->displaycryptex($crossm->cols, $crossm->rows, $cryptexrec->letters, $mask, $showsolution, $textdir);
?>
</td>
<td width=10%> </td>
<td>
<form method="get" action="<?php
echo $CFG->wwwroot;
?>
/mod/game/attempt.php">
<div id="answerbox" class="answerboxstyle" style="display:none;">
<div id="wordclue" name="wordclue" class="cluebox"> </div>
<input id="action" name="action" type="hidden" value="cryptexcheck">
<input id="q" name="q" type="hidden" >
<input id="id" name="id" value="<?php
echo $id;
?>
" type="hidden">
<div style="margin-top:1em;"><input id="answer" name="answer" type="text" size="24"
style="font-weight: bold; text-transform:uppercase;" autocomplete="off"></div>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="margin-top:1em;"><tr>
<td align="right">
<button id="okbutton" type="submit" class="button" style="font-weight: bold;">OK</button>
<button id="cancelbutton" type="button" class="button" onclick="DeselectCurrentWord();">Cancel</button>
</td></tr></table>
</form>
</td>
</tr>
</table>
<?php
if ($showhtmlprintbutton) {
echo '<br><button id="finishattemptbutton" type="button" onclick="OnEndGame();" >' . get_string('finish', 'game');
echo '</button>';
echo '<button id="printbutton" type="button" onclick="OnPrint();" >' . get_string('print', 'game');
echo '</button><br>';
}
if ($showhtmlprintbutton) {
?>
<script>
function PrintHtmlClick()
{
document.getElementById("printbutton").style.display = "none";
window.print();
document.getElementById("printbutton").style.display = "block";
}
function OnPrint()
{
<?php
global $CFG;
$params = "id={$id}&gameid={$game->id}";
echo "window.open( \"{$CFG->wwwroot}/mod/game/print.php?{$params}\");";
?>
}
function OnEndGame()
{
<?php
global $CFG;
$params = 'id=' . $id . '&action=cryptexcheck&g=&finishattempt=1';
echo "window.location = \"{$CFG->wwwroot}/mod/game/attempt.php?{$params}\";\r\n";
?>
}
</script>
<?php
}
$i = 0;
$else = '';
$contextglossary = false;
foreach ($questions as $key => $q) {
$i++;
if ($showsolution == false) {
// When I want to show the solution a want to show the questions to.
if (array_key_exists($q->id, $corrects)) {
continue;
}
}
$question = game_show_query($game, $q, "{$i}. " . $q->questiontext, $context);
$question2 = strip_tags($question);
// ADDED BY DP (AUG 2009) - fixes " breaking the Answer button for this question.
echo "<script>var msg{$q->id}=" . json_encode($question2) . ';</script>';
if ($onlyshow == false and $showsolution == false) {
if ($game->param8 == 0 || $game->param8 > $q->tries) {
$question .= ' <input type="submit" value="' . get_string('answer') . '" onclick="OnCheck( ' . $q->id . ",msg{$q->id});\" />";
}
}
echo $question;
if ($showsolution) {
echo " {$q->answertext}<B></b>";
}
echo '<br>';
}
if ($game->bottomtext != '') {
echo '<br><br>' . $game->bottomtext;
}
?>
<script>
function OnCheck( id, question)
{
document.getElementById("q").value = id;
document.getElementById("wordclue").innerHTML = question;
// Finally, show the answer box.
document.getElementById("answerbox").style.display = "block";
try
{
document.getElementById("answer").focus();
document.getElementById("answer").select();
}
catch (e)
{
}
}
</script>
<?php
if ($print) {
echo '<body onload="window.print()">';
} else {
echo '<body>';
}
}
