. 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) { $sql = "DELETE FROM {game_sudoku} WHERE id={$game->id}"; $DB->execute( $sql); print_error( get_string( 'no_questions', 'game')); } $closed = array_rand($closed, $n); $selectedrecs = 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, $selectedrecs)) { 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.'
'; } 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 '
'.$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 = game_strlen( $data); for ($i = 1; $i <= $n; $i++) { $c = game_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 "
\r\n"; echo ''; $pos = 0; for ($i = 0; $i <= 2; $i++) { echo ""; for ($j = 0; $j <= 2; $j++) { echo '\r\n"; } echo ""; } echo "
'; for ($k1 = 0; $k1 <= 2; $k1++) { echo ""; for ($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) { $s = ''; } } else if ($g == 0) { $s = ''; } } else { // Correct question. $count++; } } echo ''; } else { // Not show legend. echo ''; } } else { $s = strpos( "-ABCDEFGHI", $s); $count++; echo ''; } } echo ""; } echo "
'.$s.' '.$s.'
\r\n"; $href = $CFG->wwwroot.'/mod/game/attempt.php?action=sudokucheckn&id='.$id; ?> 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 '
'.get_string( 'win', 'game').'
'; echo '
'; echo "wwwroot/mod/game/attempt.php?id=$id\">". get_string( 'nextgame', 'game').'         '; echo "wwwroot/course/view.php?id=$cm->course\">".get_string( 'finish', 'game').' '; 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) { $found = true; // Start the form. echo "
wwwroot}/mod/game/attempt.php\" onclick=\"this.autocomplete='off'\">\n"; if (($onlyshow === false) and ($showsolution === false)) { echo "
"; echo "      "; } // Add a hidden field with the quiz id. echo '
'; echo '\n"; echo ''; // Print all the questions. // Add a hidden field with questionids. echo '\n"; } $number = "A$ofs"; game_print_question( $game, $question, $context); } if ($found) { echo "
"; // Finish the form. echo ''; if (($onlyshow === false) and ($showsolution === false)) { echo "
\n"; } echo "\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, $sudoku); return; } // Start the form. echo "
wwwroot}/mod/game/attempt.php\" onclick=\"this.autocomplete='off'\">\n"; if ($onlyshow) { $hasquestions = false; } else { $hasquestions = ( count($correctentries) < count( $entries2)); } if ($hasquestions) { echo "
\n"; } // Add a hidden field with the quiz id. echo '
'; echo '\n"; echo ''; // Print all the questions. // Add a hidden field with questionids. echo '\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. } $query = new StdClass; $query->glossaryid = $game->glossaryid; $query->glossaryentryid = $entry->id; $s = 'A'.$ofs.'. '.game_show_query( $game, $query, $entry->definition, 0).'
'; if ($showsolution) { $s .= get_string( 'answer').': '; $s .= "id}\" value=\"$entry->concept\"size=30 />
"; } else if ($onlyshow === false) { $s .= get_string( 'answer').': '; $s .= "id}\" size=30 />
"; } echo $s."
\r\n"; } echo "
"; // Finish the form. if ($hasquestions) { echo "
\n"; } echo "
\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 ''.get_string( 'win', 'game').'
'; echo '
'; echo "wwwroot}/mod/game/attempt.php?id=$id\">". get_string( 'nextgame', 'game').'         '; echo "wwwroot}?id=$id\">".get_string( 'finish', 'game').' '; } 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 $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; } $grade = game_grade_responses( $question, $responses, 100, $answertext, $answered); if ($answered == false) { continue; } if ($grade < 99) { // 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 $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 AND col>0"; // Check the student guesses not source glossary entry. $select .= " AND questiontext is null"; $query = new stdClass(); if (($query->id = $DB->get_field_select( 'game_queries', 'id', $select)) == 0) { echo "not found $select
"; 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 = 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); }