You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

631 lines
18 KiB

<?php // $Id: play.php,v 1.23 2012/08/15 09:26:55 bdaloukas Exp $
require_once( "../../lib/questionlib.php");
function game_sudoku_continue( $id, $game, $attempt, $sudoku, $endofgame, $context)
{
global $CFG, $DB, $USER;
if( $endofgame){
game_updateattempts( $game, $attempt, -1, true);
$endofgame = false;
}
if( $attempt != false and $sudoku != false){
return game_sudoku_play( $id, $game, $attempt, $sudoku, false, false, $context);
}
if( $attempt == false){
$attempt = game_addattempt( $game);
}
//new game
srand( (double)microtime()*1000000);
$recsudoku = getrandomsudoku();
if( $recsudoku == false){
print_error( 'Empty sudoku database');
}
$newrec = new stdClass();
$newrec->id = $attempt->id;
$newrec->guess = '';
$newrec->data = $recsudoku->data;
$newrec->opened = $recsudoku->opened;
$need = 81 - $recsudoku->opened;
$closed = game_sudoku_getclosed( $newrec->data);
$n = min( count($closed), $need);
//if the teacher set the maximum number of questions
if( $game->param2 > 0){
if( $game->param2 < $n){
$n = $game->param2;
}
}
$recs = game_questions_selectrandom( $game, CONST_GAME_TRIES_REPETITION*$n);
if( $recs === false){
mysql_execute( "DELETE FROM {game_sudoku} WHERE id={$game->id}");
print_error( get_string( 'no_questions', 'game'));
}
$closed = array_rand($closed, $n);
$selected_recs = game_select_from_repetitions( $game, $recs, $n);
if(!game_insert_record('game_sudoku', $newrec)){
print_error('error inserting in game_sudoku');
}
$i = 0;
$field = ($game->sourcemodule == 'glossary' ? 'glossaryentryid' : 'questionid');
foreach( $recs as $rec)
{
if( $game->sourcemodule == 'glossary')
$key = $rec->glossaryentryid;
else
$key = $rec->questionid;
if( !array_key_exists( $key, $selected_recs))
continue;
$query = new stdClass();
$query->attemptid = $newrec->id;
$query->gamekind = $game->gamekind;
$query->gameid = $game->id;
$query->userid = $USER->id;
$query->col = $closed[ $i++];
$query->sourcemodule = $game->sourcemodule;
$query->questionid = $rec->questionid;
$query->glossaryentryid = $rec->glossaryentryid;
$query->score = 0;
if( ($query->id = $DB->insert_record( 'game_queries', $query)) == 0){
print_error( 'error inserting in game_queries');
}
game_update_repetitions($game->id, $USER->id, $query->questionid, $query->glossaryentryid);
}
game_updateattempts( $game, $attempt, 0, 0);
game_sudoku_play( $id, $game, $attempt, $newrec, false, false, $context);
}
function game_sudoku_play( $id, $game, $attempt, $sudoku, $onlyshow, $showsolution, $context)
{
$offsetquestions = game_sudoku_compute_offsetquestions( $game->sourcemodule, $attempt, $numbers, $correctquestions);
if( $game->toptext != ''){
echo $game->toptext.'<br>';
}
game_sudoku_showsudoku( $sudoku->data, $sudoku->guess, true, $showsolution, $offsetquestions, $correctquestions, $id, $attempt, $game);
switch( $game->sourcemodule)
{
case 'quiz':
case 'question':
game_sudoku_showquestions_quiz( $id, $game, $attempt, $sudoku, $offsetquestions, $numbers, $correctquestions, $onlyshow, $showsolution, $context);
break;
case 'glossary':
game_sudoku_showquestions_glossary( $id, $game, $attempt, $sudoku, $offsetquestions, $numbers, $correctquestions, $onlyshow, $showsolution);
break;
}
if( $game->bottomtext != ''){
echo '<br>'.$game->bottomtext;
}
}
//returns a map with an offset and id of each question
function game_sudoku_compute_offsetquestions( $sourcemodule, $attempt, &$numbers, &$correctquestions)
{
global $CFG,$DB;
$select = "attemptid = $attempt->id";
$fields = 'id, col, score';
switch( $sourcemodule)
{
case 'quiz':
case 'question':
$fields .= ',questionid as id2';
break;
case 'glossary':
$fields .= ',glossaryentryid as id2';
break;
}
if( ($recs = $DB->get_records_select( 'game_queries', $select, null, '', $fields)) == false){
$DB->execute( "DELETE FROM {$CFG->prefix}game_sudoku WHERE id={$attempt->id}");
print_error( 'There are no questions '.$attempt->id);
}
$offsetquestions = array();
$numbers = array();
$correctquestions = array();
foreach( $recs as $rec){
$offsetquestions[ $rec->col] = $rec->id2;
$numbers[ $rec->id2] = $rec->col;
if($rec->score == 1)
$correctquestions[ $rec->col] = 1;
}
ksort( $offsetquestions);
return $offsetquestions;
}
function getrandomsudoku()
{
global $DB;
$count = $DB->count_records( 'game_sudoku_database');
if( $count == 0)
{
require_once(dirname(__FILE__) . '/../db/importsudoku.php');
$count = $DB->count_records( 'game_sudoku_database');
if( $count == 0)
return false;
}
$i = mt_rand( 0, $count - 1);
if( ($recs = $DB->get_records( 'game_sudoku_database', null, '', '*', $i, 1)) != false)
{
foreach( $recs as $rec){
return $rec;
}
}
return false;
}
function game_sudoku_getclosed( $data)
{
$a = array();
$n = textlib::strlen( $data);
for( $i=1; $i <= $n; $i++)
{
$c = textlib::substr( $data, $i-1, 1);
if( $c >= "1" and $c <= "9")
$a[ $i] = $i;
}
return $a;
}
function game_sudoku_showsudoku( $data, $guess, $bShowLegend, $bShowSolution, $offsetquestions, $correctquestions, $id, $attempt, $game)
{
global $CFG, $DB;
$correct = $count = 0;
echo "<br>\r\n";
echo '<table border="1" style="border-collapse: separate; border-spacing: 0px;">';
$pos=0;
for( $i=0; $i <= 2; $i++)
{
echo "<tr>";
for( $j=0; $j <= 2; $j++)
{
echo '<td><table border="1" width="100%">';
for( $k1=0; $k1 <= 2; $k1++)
{
echo "<tr>";
for( $k2=0; $k2 <= 2; $k2++)
{
$s = substr( $data, $pos, 1);
$g = substr( $guess, $pos, 1);
$pos++;
if( $g != 0){
$s = $g;
}
if( $s >= "1" and $s <= "9")
{
//closed number
if( $bShowLegend)
{
//show legend
if( $bShowSolution == false)
{
if( !array_key_exists( $pos, $correctquestions)){
if( array_key_exists( $pos, $offsetquestions))
{
if( $s != $g){
$s = '<input type="submit" value="A'.$pos.'" onclick="OnCheck( '.$pos.');" />';
}
}else if( $g == 0)
{
$s = '<input type="submit" value="" onclick="OnCheck( '.$pos.');" />';
}
}else
{
//correct question
$count++;
}
}
echo '<td width=33% style="text-align: center; padding: .6em; color: red; font-weight: lighter; font-size: 1em;">'.$s.'</td>';
}else
{
//not show legend
echo '<td width=33% style="text-align: center; padding: .6em; color: red; font-weight: lighter; font-size: 1em;">&nbsp;</td>';
}
}else
{
$s = strpos( "-ABCDEFGHI", $s);
$count++;
echo '<td width=33% style="text-align: center; padding: .6em; color: black; font-weight: lighter; font-size: 1em;">'.$s.'</td>';
}
}
echo "</tr>";
}
echo "</table></td>\r\n";
}
echo "</tr>";
}
echo "</table>\r\n";
?>
<script language="javascript">
function OnCheck( pos)
{
s = window.prompt( "<?php echo get_string ( 'sudoku_guessnumber', 'game') ?>", "");
if( s < "1")
return;
if( s > "9")
return;
window.location.href = "<?php echo $CFG->wwwroot.'/mod/game/attempt.php?action=sudokucheckn&id='.$id ?>&pos=" + pos + "&num=" + s;
}
</script>
<?php
//Here are the congratulations
if( $attempt->timefinish){
return $count;
}
if( count($offsetquestions) != count( $correctquestions)){
return $count;
}
if (! $cm = $DB->get_record( 'course_modules', array( 'id' => $id))) {
print_error( "Course Module ID was incorrect id=$id");
}
echo '<B><br>'.get_string( 'win', 'game').'</B><BR>';
echo '<br>';
echo "<a href=\"$CFG->wwwroot/mod/game/attempt.php?id=$id\">".get_string( 'nextgame', 'game').'</a> &nbsp; &nbsp; &nbsp; &nbsp; ';
echo "<a href=\"$CFG->wwwroot/course/view.php?id=$cm->course\">".get_string( 'finish', 'game').'</a> ';
game_updateattempts( $game, $attempt, 1, 1);
return $count;
}
function game_sudoku_getquestionlist( $offsetquestions)
{
$questionlist = '';
foreach( $offsetquestions as $q){
if( $q != 0){
$questionlist .= ','.$q;
}
}
$questionlist = substr( $questionlist, 1);
if ($questionlist == '') {
print_error( get_string('no_questions', 'game'));
}
return $questionlist;
}
function game_sudoku_getglossaryentries( $game, $offsetentries, &$entrylist, $numbers)
{
global $DB;
$entrylist = implode( ',', $offsetentries);
if ($entrylist == '') {
print_error( get_string( 'sudoku_noentriesfound', 'game'));
}
// Load the questions
if (!$entries = $DB->get_records_select( 'glossary_entries', "id IN ($entrylist)")) {
print_error( get_string('sudoku_noentriesfound', 'game'));
}
return $entries;
}
function game_sudoku_showquestions_quiz( $id, $game, $attempt, $sudoku, $offsetquestions, $numbers, $correctquestions, $onlyshow, $showsolution, $context)
{
global $CFG;
$questionlist = game_sudoku_getquestionlist( $offsetquestions);
$questions = game_sudoku_getquestions( $questionlist);
//I will sort with the number of each question
$questions2 = array();
foreach( $questions as $q){
$ofs = $numbers[ $q->id];
$questions2[ $ofs] = $q;
}
ksort( $questions2);
if( count( $questions2) == 0){
game_sudoku_showquestion_onfinish( $id, $game, $attempt, $sudoku);
return;
}
$number=0;
$found = false;
foreach ($questions2 as $question) {
$ofs = $numbers[ $question->id];
if( array_key_exists( $ofs, $correctquestions)){
continue; //I don't show the correct answers
}
if( $found == false)
{
$found = true;
// Start the form
echo "<form id=\"responseform\" method=\"post\" action=\"{$CFG->wwwroot}/mod/game/attempt.php\" onclick=\"this.autocomplete='off'\">\n";
if( ($onlyshow === false) and ($showsolution === false)){
echo "<br><center><input type=\"submit\" name=\"submit\" value=\"".get_string('sudoku_submit', 'game')."\">";
echo " &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type=\"submit\" name=\"finishattempt\" value=\"".
get_string('sudoku_finishattemptbutton', 'game')."\">";
}
// Add a hidden field with the quiz id
echo '<div>';
echo '<input type="hidden" name="id" value="' . s($id) . "\" />\n";
echo '<input type="hidden" name="action" value="sudokucheck" />';
// Print all the questions
// Add a hidden field with questionids
echo '<input type="hidden" name="questionids" value="'.$questionlist."\" />\n";
}
$number = "<a name=\"a$ofs\">A$ofs</a>";
game_print_question( $game, $question, $context);
}
if( $found)
{
echo "</div>";
// Finish the form
echo '</div>';
if( ($onlyshow === false) and ($showsolution === false)){
echo "<center><input type=\"submit\" name=\"submit\" value=\"".get_string('sudoku_submit', 'game')."\"></center>\n";
}
echo "</form>\n";
}
}
//show the sudoku and glossaryentries
function game_sudoku_showquestions_glossary( $id, $game, $attempt, $sudoku, $offsetentries, $numbers, $correctentries, $onlyshow, $showsolution)
{
global $CFG;
$entries = game_sudoku_getglossaryentries( $game, $offsetentries, $questionlist, $numbers);
//I will sort with the number of each question
$entries2 = array();
foreach( $entries as $q){
$ofs = $numbers[ $q->id];
$entries2[ $ofs] = $q;
}
ksort( $entries2);
if( count( $entries2) == 0){
game_sudoku_showquestion_onfinish( $id, $game, $attempt, $sudoku);
return;
}
/// Start the form
echo "<br><form id=\"responseform\" method=\"post\" action=\"{$CFG->wwwroot}/mod/game/attempt.php\" onclick=\"this.autocomplete='off'\">\n";
if( $onlyshow)
$hasquestions = false;
else
$hasquestions = ( count($correctentries) < count( $entries2));
if( $hasquestions){
echo "<center><input type=\"submit\" name=\"submit\" value=\"".get_string('sudoku_submit', 'game')."\"></center>\n";
}
// Add a hidden field with the quiz id
echo '<div>';
echo '<input type="hidden" name="id" value="' . s($id) . "\" />\n";
echo '<input type="hidden" name="action" value="sudokucheckg" />';
/// Print all the questions
// Add a hidden field with questionids
echo '<input type="hidden" name="questionids" value="'.$questionlist."\" />\n";
$number=0;
foreach ($entries2 as $entry) {
$ofs = $numbers[ $entry->id];
if( array_key_exists( $ofs, $correctentries)){
continue; //I don't show the correct answers
}
$s = '<b>A'.$ofs.'.</b> '.game_filtertext( $entry->definition, 0).'<br>';
if( $showsolution){
$s .= get_string( 'answer').': ';
$s .= "<input type=\"text\" name=\"resp{$entry->id}\" value=\"$entry->concept\"size=30 /><br>";
}else if( $onlyshow === false){
$s .= get_string( 'answer').': ';
$s .= "<input type=\"text\" name=\"resp{$entry->id}\" size=30 /><br>";
}
echo $s."<hr>\r\n";
}
echo "</div>";
// Finish the form
if( $hasquestions){
echo "<center><input type=\"submit\" name=\"submit\" value=\"".get_string('sudoku_submit', 'game')."\"></center>\n";
}
echo "</form>\n";
}
function game_sudoku_showquestion_onfinish( $id, $game, $attempt, $sudoku)
{
if( !set_field( 'game_attempts', 'finish', 1, 'id', $attempt->id)){
print_error( "game_sudoku_showquestion_onfinish: Can't update game_attempts id=$attempt->id");
}
echo '<B>'.get_string( 'win', 'game').'</B><BR>';
echo '<br>';
echo "<a href=\"{$CFG->wwwroot}/mod/game/attempt.php?id=$id\">".get_string( 'nextgame', 'game').'</a> &nbsp; &nbsp; &nbsp; &nbsp; ';
echo "<a href=\"{$CFG->wwwroot}?id=$id\">".get_string( 'finish', 'game').'</a> ';
}
function game_sudoku_checkanswers()
{
$responses = data_submitted();
$actions = question_extract_responses($questions, $responses, $event);
}
function game_sudoku_check_questions( $id, $game, $attempt, $sudoku, $finishattempt, $course)
{
global $QTYPES, $DB;
$responses = data_submitted();
$offsetquestions = game_sudoku_compute_offsetquestions( $game->sourcemodule, $attempt, $numbers, $correctquestions);
$questionlist = game_sudoku_getquestionlist( $offsetquestions);
$questions = game_sudoku_getquestions( $questionlist);
foreach($questions as $question) {
$query = new stdClass();
$select = "attemptid=$attempt->id";
$select .= " AND questionid=$question->id";
if( ($query->id = $DB->get_field_select( 'game_queries', 'id', $select)) == 0){
die( "problem game_sudoku_check_questions (select=$select)");
continue;
}
$name = "resp{$question->id}_";
if( !isset( $responses->$name))
continue;
$grade = game_grade_responses( $question, $responses, 100, $answertext);
if( $grade < 50){
//wrong answer
game_update_queries( $game, $attempt, $query, $grade/100, $answertext);
continue;
}
//correct answer
game_update_queries( $game, $attempt, $query, 1, $answertext);
}
game_sudoku_check_last( $id, $game, $attempt, $sudoku, $finishattempt, $course);
}
function game_sudoku_check_glossaryentries( $id, $game, $attempt, $sudoku, $finishattempt, $course)
{
global $QTYPES, $DB;
$responses = data_submitted();
//this function returns offsetentries, numbers, correctquestions
$offsetentries = game_sudoku_compute_offsetquestions( $game->sourcemodule, $attempt, $numbers, $correctquestions);
$entrieslist = game_sudoku_getquestionlist( $offsetentries );
// Load the glossary entries
if (!($entries = $DB->get_records_select( 'glossary_entries', "id IN ($entrieslist)"))) {
print_error( get_string('noglossaryentriesfound', 'game'));
}
foreach($entries as $entry) {
$answerundefined = optional_param('resp'.$entry->id, 'undefined', PARAM_TEXT);
if( $answerundefined == 'undefined'){
continue;
}
$answer = optional_param('resp'.$entry->id, '', PARAM_TEXT);
if( $answer == ''){
continue;
}
if( game_upper( $entry->concept) != game_upper( $answer)){
continue;
}
//correct answer
$select = "attemptid=$attempt->id";
$select .= " AND glossaryentryid=$entry->id";
$query = new stdClass();
if( ($query->id = $DB->get_field_select( 'game_queries', 'id', $select)) == 0){
echo "not found $select<br>";
continue;
}
game_update_queries( $game, $attempt, $query, 1, $answer);
}
game_sudoku_check_last( $id, $game, $attempt, $sudoku, $finishattempt, $course);
return true;
}
//this is the last function after submiting the answers.
function game_sudoku_check_last( $id, $game, $attempt, $sudoku, $finishattempt, $course)
{
global $CFG, $DB;
$correct = $DB->get_field_select( 'game_queries', 'COUNT(*) AS c', "attemptid=$attempt->id AND score > 0.9");
$all = $DB->get_field_select( 'game_queries', 'COUNT(*) AS c', "attemptid=$attempt->id");
if( $all){
$grade = $correct / $all;
}else
{
$grade = 0;
}
game_updateattempts( $game, $attempt, $grade, $finishattempt);
}
function game_sudoku_check_number( $id, $game, $attempt, $sudoku, $pos, $num, $context)
{
global $DB;
$correct = textlib::substr( $sudoku->data, $pos-1, 1);
if( $correct != $num)
{
game_sudoku_play( $id, $game, $attempt, $sudoku, false, false, $context);
return;
}
$leng = textlib::strlen( $sudoku->guess);
$lend = textlib::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);
}