id = $attempt->id;
$newrec->snakesdatabaseid = $game->param3;
$newrec->position = 1;
$newrec->queryid = 0;
if( !game_insert_record( 'game_snakes', $newrec)){
error( 'game_snakes_continue: error inserting in game_snakes');
}
game_updateattempts( $game, $attempt, 0, 0);
return game_snakes_play( $id, $game, $attempt, $newrec);
}
function game_snakes_play( $id, $game, $attempt, $snakes)
{
global $CFG;
$board = game_snakes_getboard( $game, $snakes);
if( $snakes->position > $board->cols * $board->rows && $snakes->queryid <> 0){
$finish = true;
if (! $cm = get_record("course_modules", "id", $id)) {
error("Course Module ID was incorrect id=$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').' ';
$gradeattempt = 1;
$finish = 1;
game_updateattempts( $game, $attempt, $gradeattempt, $finish);
}else
{
$finish = false;
if( $snakes->queryid == 0){
game_snakes_computenextquestion( $game, $snakes, $query);
}else
{
$query = get_record( 'game_queries', 'id', $snakes->queryid);
}
if( $game->toptext != ''){
echo $game->toptext.'
';
}
game_snakes_showquestion( $id, $game, $snakes, $query);
}
?>
bottomtext != ''){
echo '
'.$game->bottomtext;
}
}
function game_snakes_getboard( $game, $snakes)
{
global $CFG;
if( $game->param3 != 0 or $snakes->snakesdatabaseid == 0)
{
$board = get_record_select( 'game_snakes_database', 'id='.$snakes->snakesdatabaseid);
if( $board == false)
{
require_once(dirname(__FILE__) . '/../db/importsnakes.php');
$board = get_record_select( 'game_snakes_database', 'id='.$snakes->snakesdatabaseid);
}
if( $board == false)
print_error( 'No board '.$snakes->snakesdatabaseid);
$board->imagesrc = $CFG->wwwroot.'/mod/game/snakes/boards/'.$board->fileboard;
}else
{
$board = game_snakes_create_user_defined_board( $game);
}
return $board;
}
function game_snakes_showdice( $snakes, $board)
{
$pos = game_snakes_computeplayerposition( $snakes, $board);
?>
position - 1) % $board->cols;
$y = floor( ($snakes->position-1) / $board->cols);
$cellwidth = ($board->width - $board->headerx - $board->footerx) / $board->cols;
$cellheight = ($board->height - $board->headery - $board->footery) / $board->rows;
unset( $pos);
switch( $board->direction){
case 1:
if( ($y % 2) == 1){
$x = $board->cols - $x - 1;
}
$pos->x = round( $board->headerx + $x * $cellwidth + ($cellwidth-$pawn_width)/2);
$pos->y = round( $board->footery + ($board->rows - $y-1) * $cellheight)- $board->height-10 + ($cellheight-$pawn_height)/2;
break;
}
return $pos;
}
function game_snakes_computenextquestion( $game, &$snakes, &$query)
{
global $USER;
//Retrieves CONST_GAME_TRIES_REPETITION words and select the one which is used fewer times
if( ($recs = game_questions_selectrandom( $game, CONST_GAME_TRIES_REPETITION)) == false){
return false;
}
$glossaryid = 0;
$questionid = 0;
$min_num = 0;
foreach( $recs as $rec){
$select = "gameid=$game->id AND userid='$USER->id' AND questionid='$rec->questionid' AND glossaryentryid='$rec->glossaryentryid'";
if(($rec2 = get_record_select('game_repetitions', $select, 'id,repetitions r')) != false){
if( ($rec2->r < $min_num) or ($min_num == 0)){
$min_num = $rec2->r;
$query->glossaryentryid = $rec->glossaryentryid;
$query->questionid = $rec->questionid;
}
}
else{
$query->glossaryentryid = $rec->glossaryentryid;
$query->questionid = $rec->questionid;
break;
}
}
if( ($query->glossaryentryid == 0) AND ($query->questionid == 0))
return false;
$query->attemptid = $snakes->id;
$query->gameid = $game->id;
$query->userid = $USER->id;
$query->sourcemodule = $game->sourcemodule;
$query->score = 0;
$query->timelastattempt = time();
if( !($query->id = insert_record( 'game_queries', $query))){
error( "Can't insert to table game_queries");
}
$snakes->queryid = $query->id;
$updrec->id = $snakes->id;
$updrec->queryid = $query->id;
$updrec->dice = rand( 1, 6);
if( !update_record( 'game_snakes', $updrec)){echo "
";
error( 'game_questions_selectrandom: error updating in game_snakes');
}
$snakes->dice = $updrec->dice;
game_update_repetitions($game->id, $USER->id, $query->questionid, $query->glossaryentryid);
return true;
}
function game_snakes_showquestion( $id, $game, $snakes, $query)
{
if( $query->sourcemodule == 'glossary'){
game_snakes_showquestion_glossary( $id, $snakes, $query);
}else
{
game_snakes_showquestion_question( $game, $id, $snakes, $query);
}
}
function game_snakes_showquestion_question( $game, $id, $snakes, $query)
{
global $CFG;
$questionlist = $query->questionid;
$questions = game_sudoku_getquestions( $questionlist);
/// Start the form
echo '
';
echo "\n";
}
function game_snakes_showquestion_glossary( $id, $snakes, $query)
{
global $CFG;
$entry = get_record( 'glossary_entries', 'id', $query->glossaryentryid);
/// Start the form
echo '
';
echo "\n";
}
function game_snakes_check_questions( $id, $game, $attempt, $snakes)
{
global $QTYPES, $CFG;
$responses = data_submitted();
if( $responses->queryid != $snakes->queryid){
game_snakes_play( $id, $game, $attempt, $snakes);
return;
}
$questionlist = get_field( 'game_queries', 'questionid', 'id', $responses->queryid);
$questions = game_sudoku_getquestions( $questionlist);
$actions = question_extract_responses( $questions, $responses, QUESTION_EVENTSUBMIT);
$correct = false;
$query = '';
foreach($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;
$state->responses[ ''] = game_upper( $state->responses[ '']);
$cmoptions = array();
$QTYPES[$question->qtype]->grade_responses( $question, $state, $cmoptions);
unset( $query);
$select = "attemptid=$attempt->id ";
$select .= " AND questionid=$question->id";
if( ($query->id = get_field_select( 'game_queries', 'id', $select)) == 0){
die("problem game_sudoku_check_questions (select=$select)");
continue;
}
$grade = $state->raw_grade;
if( $grade < 50){
//wrong answer
game_update_queries( $game, $attempt, $query, 0, '');
continue;
}
//correct answer
$correct = true;
game_update_queries( $game, $attempt, $query, 1, '');
}
//set the grade of the whole game
game_snakes_position( $id, $game, $attempt, $snakes, $correct, $query);
}
function game_snakes_check_glossary( $id, $game, $attempt, $snakes)
{
global $QTYPES, $CFG;
$responses = data_submitted();
if( $responses->queryid != $snakes->queryid){
game_snakes_play( $id, $game, $attempt, $snakes);
return;
}
$query = get_record( 'game_queries', 'id', $responses->queryid);
$glossaryentry = get_record( 'glossary_entries', 'id', $query->glossaryentryid);
$name = 'resp'.$query->glossaryentryid;
$useranswer = $responses->answer;
if( game_upper( $useranswer) != game_upper( $glossaryentry->concept)){
//wrong answer
$correct = false;
game_update_queries( $game, $attempt, $query, 0, $useranswer);//last param is grade
}else
{
//correct answer
$correct = true;
game_update_queries( $game, $attempt, $query, 1, $useranswer);//last param is grade
}
//set the grade of the whole game
game_snakes_position( $id, $game, $attempt, $snakes, $correct, $query);
}
function game_snakes_position( $id, $game, $attempt, $snakes, $correct, $query)
{
$data = get_field( 'game_snakes_database', 'data', 'id', $snakes->snakesdatabaseid);
if( $correct){
if( ($next=game_snakes_foundlander( $snakes->position + $snakes->dice, $data))){
$snakes->position = $next;
}else
{
$snakes->position = $snakes->position + $snakes->dice;
}
}else
{
if( ($next=game_snakes_foundsnake( $snakes->position, $data))){
$snakes->position = $next;
}
}
$updrec->id = $snakes->id;
$updrec->position = $snakes->position;
$updrec->queryid = 0;
if( !update_record( 'game_snakes', $updrec)){
error( "game_snakes_position: Can't update game_snakes");
}
$board = game_snakes_getboard( $game, $snakes);
$gradeattempt = $snakes->position / ($board->cols * $board->rows);
$finished = ( $snakes->position > $board->cols * $board->rows ? 1 : 0);
game_updateattempts( $game, $attempt, $gradeattempt, $finished);
game_snakes_computenextquestion( $game, $snakes, $query);
game_snakes_play( $id, $game, $attempt, $snakes);
}
//in lander go forward
function game_snakes_foundlander( $position, $data)
{
preg_match( "/L$position-([0-9]*)/", $data, $matches);
if( count( $matches)){
return $matches[ 1];
}
return 0;
}
//in snake go backward
function game_snakes_foundsnake( $position, $data)
{
preg_match( "/S([0-9]*)-$position,/", $data.',', $matches);
if( count( $matches)){
return $matches[ 1];
}
return 0;
}
function game_snakes_create_user_defined_board( &$game)
{
global $CFG, $DB;
$board = new stdClass();
$a = explode( '#',$game->param9);
foreach( $a as $s){
$pos = strpos( $s, ':');
if( $pos){
$name = substr( $s, 0, $pos);
if( substr( $name, 0, 7) == 'snakes_')
$name = substr( $name, 7);
$board->$name = substr( $s, $pos+1);
}
}
$cmg = get_coursemodule_from_instance('game', $game->id, $game->course);
$modcontext = get_context_instance(CONTEXT_MODULE, $cmg->id);
$target_path = game_file_area_name( $game);
$d = dir( $target_path);
$board->imagesrc = game_file_area_name( $game).'/board.jpg';
$file = '';
while (false !== ($entry = $d->read())) {
if( substr( $entry, 0, 4) == 'file')
$file = $target_path.'/'.$entry;
}
$d->close();
if( !file_exists( $board->imagesrc))
{
require("createboard.php");
$im=game_createsnakesboard(file_get_contents( $file), $board->cols, $board->rows, $board->headery, $board->headery, $board->footerx, $board->headerx, $board->board);
ob_start();
imagejpeg($im);
$data = ob_get_contents();
ob_end_clean();
file_put_contents( $board->imagesrc, $data);
list($game->param6, $game->param7) = getimagesize( $board->imagesrc);
$sql = "UPDATE {$CFG->prefix}game SET param5=0,param6=$game->param6,param7=$game->param7 WHERE id=$game->id";
if (!execute_sql( $sql, false)) {
error('problem in '.$sql);
}
}
$board->width = $game->param6;
$board->height = $game->param7;
$board->direction = 1;
$board->name = '';
$board->imagesrc = $CFG->wwwroot.'/file.php/'.$game->course.'/moddata/game/'.$game->id.'/board.jpg';
return $board;
}
;?>.png)