function updatecrossquestions(&$rec, &$g, &$pos, &$correctletters, &$wrongletters, &$restletters, $game, $attempt, $crossrec)
{
global $DB, $USER;
$textlib = textlib_get_instance();
$word = $rec->answertext;
$len = $textlib->strlen($word);
$guess = $textlib->substr($g, $pos, $len);
$len_guess = $textlib->strlen($guess);
$pos += $len;
$is_empty = true;
for ($i = 0; $i < $len; $i++) {
if ($i < $len_guess) {
$letterguess = $textlib->substr($guess, $i, 1);
} else {
$letterguess = " ";
}
if ($letterguess != ' ') {
$is_empty = false;
}
$letterword = $textlib->substr($word, $i, 1);
if ($letterword != $letterguess) {
if ($letterguess != ' ' and $letterguess != '_' or $letterword == ' ') {
$wrongletters++;
}
game_setchar($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->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, $guess);
}
function load($crossm, &$mask, &$corrects, &$language)
{
global $DB;
$textlib = textlib_get_instance();
$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 = $textlib->strlen($word);
$found = $rec->answertext == $rec->studentanswer;
for ($i = 0; $i < $len; $i++) {
$c = $found ? '1' : '2';
if ($textlib->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 $questions;
}
function game_sudoku_check_number($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, $context);
}
function game_sudoku_check_number($id, $game, $attempt, $sudoku, $pos, $num)
{
$textlib = textlib_get_instance();
$correct = $textlib->substr($sudoku->data, $pos - 1, 1);
if ($correct != $num) {
game_sudoku_play($id, $game, $attempt, $sudoku);
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 (!set_field_select('game_sudoku', 'guess', $sudoku->guess, "id={$sudoku->id}")) {
error('game_sudoku_check_number: Cannot update table game_sudoku');
}
game_sudoku_play($id, $game, $attempt, $sudoku);
}