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<?php // $Id: play.php,v 1.4.2.4 2010/08/13 06:29:59 bdaloukas Exp $
// This files plays the game "Book with Questions"
function game_bookquiz_continue( $id, $game, $attempt, $bookquiz, $chapterid=0)
{
if( $attempt != false and $bookquiz != false){
return game_bookquiz_play( $id, $game, $attempt, $bookquiz, $chapterid);
}
if( $attempt == false){
$attempt = game_addattempt( $game);
}
unset($bookquiz);
$bookquiz->lastchapterid = 0;
$bookquiz->id = $attempt->id;
$bookquiz->bookid = $game->bookid;
if( !game_insert_record('game_bookquiz', $bookquiz)){
error( 'game_bookquiz_continue: error inserting in game_bookquiz');
}
return game_bookquiz_play( $id, $game, $attempt, $bookquiz, 0);
}
function game_bookquiz_play( $id, $game, $attempt, $bookquiz, $chapterid)
{
if( $bookquiz->lastchapterid == 0){
game_bookquiz_play_computelastchapter( $game, $bookquiz);
if( $bookquiz->lastchapterid == 0){
error( get_string( 'bookquiz_empty', 'game'));
}
}
if( $chapterid == 0){
$chapterid = $bookquiz->lastchapterid;
}else
{
if( (set_field( 'game_bookquiz', 'lastchapterid', $chapterid, 'id', $bookquiz->id)) == false){
error( "Can't update table game_bookquiz with lastchapterid to $chapterid");
}
}
$book = get_record_select( 'book', 'id='.$game->bookid);
if( !$chapter = get_record_select( 'book_chapters', 'id='.$chapterid)){
error('Error reading book chapters.');
}
$select = "bookid = $game->bookid AND hidden = 0";
$chapters = get_records_select('book_chapters', $select, 'pagenum', 'id, pagenum, subchapter, title, hidden');
$okchapters = array();
if( ($recs = get_records_select( 'game_bookquiz_chapters', "attemptid=$attempt->id")) != false){
foreach( $recs as $rec){
//1 means correct answer
$okchapters[ $rec->chapterid] = 1;
}
}
//2 means current
//$okchapters[ $chapterid] = 2;
$showquestions = false;
$select = "gameid=$game->id AND chapterid=$chapterid";
if( ($questions = get_records_select( 'game_bookquiz_questions', $select)) === false){
if( !array_key_exists( $chapterid, $okchapters)){
$okchapters[ $chapterid] = 1;
unset( $newrec);
$newrec->attemptid = $attempt->id;
$newrec->chapterid = $chapterid;
if( !insert_record( 'game_bookquiz_chapters', $newrec)){
error( "Can't insert to table game_bookquiz_chapters");
}
}
}else
{
//Have to select random one question
$questionid = game_bookquiz_selectrandomquestion( $questions);
if( $questionid != 0){
$showquestions = true;
}
}
/// prepare chapter navigation icons
$previd = null;
$nextid = null;
$found = 0;
$scoreattempt = 0;
foreach ($chapters as $ch) {
$scoreattempt++;
if ($found) {
$nextid= $ch->id;
break;
}
if ($ch->id == $chapter->id) {
$found = 1;
}
if (!$found) {
$previd = $ch->id;
}
}
if ($ch == current($chapters)) {
$nextid = $ch->id;
}
if( count( $chapters)){
$scoreattempt = ($scoreattempt-1) / count( $chapters);
}
$chnavigation = '';
if ($previd) {
$chnavigation .= '<a title="'.get_string('navprev', 'book').'" href="attempt.php?id='.$id.'&chapterid='.$previd.'"><img src="bookquiz/pix/nav_prev.gif" class="bigicon" alt="'.get_string('navprev', 'book').'"/></a>';
} else {
$chnavigation .= '<img src="pix/nav_prev_dis.gif" class="bigicon" alt="" />';
}
$nextbutton = '';
if ($nextid) {
if( !$showquestions){
$chnavigation .= '<a title="'.get_string('navnext', 'book').'" href="attempt.php?id='.$id.'&chapterid='.$nextid.'"><img src="bookquiz/pix/nav_next.gif" class="bigicon" alt="'.get_string('navnext', 'book').'" ></a>';
$nextbutton = '<center>';
$nextbutton .= '<form name="form" method="get" action="attempt.php">';
$nextbutton .= '<input type="hidden" name="id" value="'.$id.'" >'."\r\n";
$nextbutton .= '<input type="hidden" name="chapterid" value="'.$nextid.'" >'."\r\n";
$nextbutton .= '<input type="submit" value="'.get_string( 'continue').'">';
$nextbutton .= '</center>';
$showquestions = false;
game_updateattempts_maxgrade( $game, $attempt, $scoreattempt, 0);
}
} else {
game_updateattempts_maxgrade( $game, $attempt, 1, 0);
$sec = '';
if (! $cm = get_record("course_modules", "id", $id)) {
error("Course Module ID was incorrect id=$id");
}
if ($section = get_record('course_sections', 'id', $cm->section)) {
$sec = $section->section;
}
$chnavigation .= '<a title="'.get_string('navexit', 'book').'" href="../../course/attempt.php?id='.$game->course.'"><img src="bookquiz/pix/nav_exit.gif" class="bigicon" alt="'.get_string('navexit', 'book').'" /></a>';
}
require( 'toc.php');
$tocwidth = '10%';
?>
<table border="0" cellspacing="0" width="100%" valign="top" cellpadding="2">
<!-- subchapter title and upper navigation row //-->
<tr>
<td width="<?php echo 10;?>" valign="bottom">
</td>
<td valign="top">
<table border="0" cellspacing="0" width="100%" valign="top" cellpadding="0">
<tr>
<td align="right"><?php echo $chnavigation ?></td>
</tr>
</table>
</td>
</tr>
<!-- toc and chapter row //-->
<tr>
<td width="<?php echo $tocwidth ?>" valign="top" align="left">
<?php
print_box_start('generalbox');
echo $toc;
print_box_end();
?>
</td>
<td valign="top" align="left">
<?php
print_box_start('generalbox');
$content = '';
if (!$book->customtitles) {
if ($currsubtitle == '&nbsp;') {
$content .= '<p class="book_chapter_title">'.$currtitle.'</p>';
} else {
$content .= '<p class="book_chapter_title">'.$currtitle.'<br />'.$currsubtitle.'</p>';
}
}
$content .= $chapter->content;
$nocleanoption = new object();
$nocleanoption->noclean = true;
echo '<div>';
if( $nextbutton != ''){
echo $nextbutton;
}
echo format_text($content, FORMAT_HTML, $nocleanoption, $id);
if( $nextbutton != ''){
echo $nextbutton;
}
echo '</div>';
print_box_end();
/// lower navigation
echo '<p align="right">'.$chnavigation.'</p>';
?>
</td>
</tr>
</table>
<?php
if( $showquestions){
game_bookquiz_showquestions( $id, $questionid, $chapter->id, $nextid, $scoreattempt, $game);
}
}
function game_bookquiz_play_computelastchapter( $game, &$bookquiz)
{
$pagenum = get_field( 'book_chapters', 'min(pagenum) as p', 'bookid', $game->bookid);
if( $pagenum){
$bookquiz->lastchapterid = get_field( 'book_chapters', 'id', 'bookid', $game->bookid, 'pagenum', $pagenum);
if( $bookquiz->lastchapterid){
//update the data in table game_bookquiz
if( (set_field( 'game_bookquiz', 'lastchapterid', $bookquiz->lastchapterid, 'id', $bookquiz->id)) == false){
error( "Can't update table game_bookquiz with lastchapterid to $bookquiz->lastchapterid");
}
}
}
}
function game_bookquiz_showquestions( $id, $questionid, $chapterid, $nextchapterid, $scoreattempt, $game)
{
$onlyshow = false;
$showsolution = false;
$questionlist = $questionid;
$questions = game_sudoku_getquestions( $questionlist);
global $CFG;
/// Start the form
echo "<form id=\"responseform\" method=\"post\" action=\"{$CFG->wwwroot}/mod/game/attempt.php\" onclick=\"this.autocomplete='off'\">\n";
if( ($onlyshow === false) and ($showsolution === false)){
echo "<center><input type=\"submit\" name=\"finishattempt\" value=\"".get_string('sudoku_submit', 'game')."\"></center>\n";
}
// Add a hidden field with the quiz id
echo '<div>';
echo '<input type="hidden" name="id" value="' . s($id) . "\" />\n";
echo '<input type="hidden" name="action" value="bookquizcheck" />';
echo '<input type="hidden" name="chapterid" value="'.$chapterid.'" />';
echo '<input type="hidden" name="scoreattempt" value="'.$scoreattempt.'" />';
echo '<input type="hidden" name="nextchapterid" value="'.$nextchapterid.'" />';
/// Print all the questions
// Add a hidden field with questionids
echo '<input type="hidden" name="questionids" value="'.$questionlist."\" />\n";
$number=0;
foreach ($questions as $question) {
global $QTYPES;
unset( $cmoptions);
$cmoptions->course = $game->course;
$cmoptions->optionflags->optionflags = 0;
$cmoptions->id = 0;
$cmoptions->shuffleanswers = 1;
$attempt = 0;
if (!$QTYPES[$question->qtype]->create_session_and_responses( $question, $state, $cmoptions, $attempt)) {
error( 'game_bookquiz_showquestions: problem');
}
$state->last_graded = new StdClass;
$state->last_graded->event = QUESTION_EVENTOPEN;
$state->event = QUESTION_EVENTOPEN;
$options->scores->score = 0;
$question->maxgrade = 100;
$state->manualcomment = '';
$cmoptions->optionflags = 0;
$options->correct_responses = 0;
$options->feedback = 0;
$options->readonly = 0;
if( $showsolution){
$state->responses = $QTYPES[$question->qtype]->get_correct_responses($question, $state);
}
$number++;
print_question($question, $state, $number, $cmoptions, $options);
}
echo "</div>";
// Finish the form
echo '</div>';
if( ($onlyshow === false) and ($showsolution === false)){
echo "<center><input type=\"submit\" name=\"finishattempt\" value=\"".get_string('sudoku_submit', 'game')."\"></center>\n";
}
echo "</form>\n";
}
function game_bookquiz_selectrandomquestion( $questions)
{
$categorylist = '';
if( $questions == false){
return 0;
}
foreach( $questions as $rec){
$categorylist .= ',' . $rec->questioncategoryid;
}
$select = 'category in ('.substr( $categorylist, 1). ") AND qtype in ('shortanswer', 'truefalse', 'multichoice')";
if( ($recs = get_records_select( 'question', $select, '', 'id,id')) == false){
return 0;
}
$a = array();
foreach( $recs as $rec){
$a[ $rec->id] = $rec->id;
}
if( count( $a) == 0){
return 0;
}else
{
return array_rand( $a);
}
}
function game_bookquiz_check_questions( $id, $game, $attempt, $bookquiz)
{
global $QTYPES, $CFG, $USER;
$responses = data_submitted();
$questionlist = $responses->questionids;
$questions = game_sudoku_getquestions( $questionlist);
$actions = question_extract_responses($questions, $responses, QUESTION_EVENTSUBMIT);
$scorequestion = 0;
$scoreattempt = 0;
foreach($questions as $question) {
if( !array_key_exists( $question->id, $actions)){
//no answered
continue;
}
unset( $state);
unset( $cmoptions);
$question->maxgrade = 100;
$state->responses = $actions[ $question->id]->responses;
$state->event = QUESTION_EVENTGRADE;
$cmoptions = array();
$QTYPES[$question->qtype]->grade_responses( $question, $state, $cmoptions);
if( $state->raw_grade < 50){
continue;
}
//found one correct answer
$chapterid = $responses->chapterid;
if( !get_field( 'game_bookquiz_chapters', 'id', 'attemptid', $attempt->id, 'chapterid', $chapterid))
{
unset( $newrec);
$newrec->attemptid = $attempt->id;
$newrec->chapterid = $chapterid;
if( !insert_record( 'game_bookquiz_chapters', $newrec, false)){
print_object( $newrec);
error( "Can't insert to table game_bookquiz_chapters");
}
}
//Have to go to next page.
$bookquiz->lastchapterid = $responses->nextchapterid;
if( !set_field( 'game_bookquiz', 'lastchapterid', $bookquiz->lastchapterid, 'id', $bookquiz->id)){
error( "Can't compute next chapter");
}
$scorequestion = 1;
$scoreattempt = required_param('scoreattempt', PARAM_INT);
break;
}
$query->id = 0;
$query->attemptid = $attempt->id;
$query->gameid = $game->id;
$query->userid = $USER->id;
$query->sourcemodule = 'question';
$query->questionid = $question->id;
$query->glossaryentryid = 0;
$query->questiontext = $question->questiontext;
$query->timelastattempt = time();
game_update_queries( $game, $attempt, $query, $scorequestion, '');
game_updateattempts( $game, $attempt, $scoreattempt, 0);
game_bookquiz_continue( $id, $game, $attempt, $bookquiz);
}
?>