From b5f11fca18112e77ba22559b4d49d3d693e4e3ad Mon Sep 17 00:00:00 2001
From: Vasilis Daloukas <bdaloukas@gmail.com>
Date: Sun, 27 Dec 2015 02:10:48 +0200
Subject: [PATCH] Fix:Coding style

---
 lang/en/game.php           |   81 +--
 millionaire/play.php       | 1117 ++++++++++++++++++------------------
 report/default.php         |   70 ++-
 report/overview/report.php |  334 ++++++-----
 snakes/createboard.php     |  340 ++++++-----
 snakes/play.php            |  881 ++++++++++++++--------------
 6 files changed, 1442 insertions(+), 1381 deletions(-)

diff --git a/lang/en/game.php b/lang/en/game.php
index 65c5bcb..b14511f 100755
--- a/lang/en/game.php
+++ b/lang/en/game.php
@@ -1,31 +1,46 @@
-<?php // $Id: game.php,v 1.22 2012/07/26 05:38:59 bdaloukas Exp $
-      // translated by Vasilis Daloukas
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
-//bookquiz/importodt.php
+// Translated by Vasilis Daloukas.
+
+// File bookquiz/importodt.php.
 $string[ 'bookquiz_import_odt'] = 'Import from an OpenOffice file (odt)';
 $string[ 'bookquiz_not_select_book'] = 'You have not select book';
 $string[ 'bookquiz_subchapter'] = 'Create subchapters';
 
-//bookquiz/play.php
+// File bookquiz/play.php.
 $string[ 'bookquiz_empty'] = 'The book is empty';
 $string[ 'sudoku_submit'] = 'Grade answers';
 
-//bookquiz/questions.php
+// File bookquiz/questions.php.
 $string[ 'bookquiz_categories'] = 'Categories';
 $string[ 'bookquiz_chapters'] = 'Chapters';
 $string[ 'bookquiz_numquestions'] = 'Questions';
 
-//classes
+// Classes.
 $string[ 'eventgamecreated'] = 'Game created';
 $string[ 'eventgamedeleted'] = 'Game deleted';
 $string[ 'eventgamesupdated'] = 'Game updated';
 $string[ 'eventgameviewed'] = 'Game viewed';
 $string[ 'eventgameplayed'] = 'Game played';
 
-//cross/cross_class.php
+// File cross/cross_class.php.
 $string[ 'lettersall'] = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
 
-//cross/crossdb_class.php
+// File cross/crossdb_class.php.
 $string[ 'and'] = 'and';
 $string[ 'cross_correct'] = 'corrert character';
 $string[ 'cross_corrects'] = 'correct characters';
@@ -36,7 +51,7 @@ $string[ 'cross_found_one'] = 'Found';
 $string[ 'grade'] = 'Grade';
 $string[ 'cross_disabletransformuppercase'] = 'Disables text-transform:uppercase in CSS';
 
-//cross/play.php
+// File cross/play.php.
 $string[ 'cross_across'] = 'Across';
 $string[ 'cross_checkbutton'] = 'Check crossword';
 $string[ 'cross_down'] = 'Down';
@@ -53,10 +68,10 @@ $string[ 'no_words'] = 'There are no words';
 $string[ 'print'] = 'Print';
 $string[ 'win'] = 'Congratulations !!!';
 
-//cryptex/play.php
+// File cryptex/play.php.
 $string[ 'finish'] = 'End of game';
 
-//db/access.php
+// File db/access.php.
 $string[ 'game:attempt'] = 'Play game';
 $string[ 'game:deleteattempts'] = 'Delete attempts';
 $string[ 'game:grade'] = 'Grade games manually';
@@ -67,7 +82,7 @@ $string[ 'game:reviewmyattempts'] = 'reviewmyattempts';
 $string[ 'game:view'] = 'view';
 $string[ 'game:viewreports'] = 'viewreports';
 
-//hangman/play.php
+// File hangman/play.php.
 $string[ 'hangman_correct_phrase'] = 'The correct phrase was: ';
 $string[ 'hangman_correct_word'] = 'The correct word was: ';
 $string[ 'hangman_gradeinstance'] = 'Grade in whole game';
@@ -77,7 +92,7 @@ $string[ 'hangman_restletters_one'] = 'You have <b>ONLY 1</b> try';
 $string[ 'hangman_wrongnum'] = 'Wrong: %d out of %d';
 $string[ 'nextword'] = 'Next word';
 
-//hiddenpicture/play.php
+// File hiddenpicture/play.php.
 $string[ 'hiddenpicture_mainsubmit'] = 'Grade main answer';
 $string[ 'hiddenpicture_nocols'] = 'Have to specify the number of cols horizontaly';
 $string[ 'hiddenpicture_nomainquestion'] = 'There are no glossary entries on glossary {$a->name} with an attached picture';
@@ -86,11 +101,11 @@ $string[ 'must_select_glossary'] = 'You must select a glossary';
 $string[ 'no_questions'] = "There are no questions";
 $string[ 'noglossaryentriesfound'] = 'No glossary entries found';
 
-//millionaire/play.php
+// File millionaire/play.php.
 $string[ 'millionaire_must_select_questioncategory'] = 'You must select one question category';
 $string[ 'millionaire_must_select_quiz'] = 'You must select one quiz';
 
-//report/overview/report.php
+// File report/overview/report.php.
 $string[ 'allattempts'] = 'Show all tries';
 $string[ 'allstudents'] = 'Show all $a';
 $string[ 'attemptduration'] = 'Attempt duration';
@@ -111,21 +126,21 @@ $string[ 'timecompleted'] = 'Completed';
 $string[ 'unfinished'] = 'open';
 $string[ 'withselected'] = 'With selected';
 
-//snakes/play.php
+// File snakes/play.php.
 $string[ 'snakes_dice'] = 'Dice, $a spots.';
 $string[ 'snakes_player'] = 'Player, position: $a.';
 
-//sudoku/create.php
+// File sudoku/create.php.
 $string[ 'sudoku_create_count'] = 'Number of sudokus that will be created';
 $string[ 'sudoku_create_start'] = 'Start creating sudokus';
 $string[ 'sudoku_creating'] = 'Creating <b>{$a}</b> sudoku';
 
-//sudoku/play.php
+// File sudoku/play.php.
 $string[ 'sudoku_finishattemptbutton'] = 'End of game';
 $string[ 'sudoku_guessnumber'] = 'Guess the correct number';
 $string[ 'sudoku_noentriesfound'] = 'No words found in glossary';
 
-//export.php
+// File export.php.
 $string[ 'export'] = 'Export';
 $string[ 'html_hascheckbutton'] = 'Has check button:';
 $string[ 'html_hasprintbutton'] = 'Has print button:';
@@ -141,11 +156,11 @@ $string[ 'javame_type'] = 'Type:';
 $string[ 'javame_vendor'] = 'Vendor:';
 $string[ 'javame_version'] = 'Version:';
 
-//exporthtml_hangman.php
+// File exporthtml_hangman.php.
 $string[ 'hangman_loose'] = '<BIG><B>Game over</B></BIG>';
 $string[ 'html_hangman_new'] = 'New';
 
-//exporthtml_millionaire.php
+// File exporthtml_millionaire.php.
 $string[ 'millionaire_helppeople'] = 'Help of people';
 $string[ 'millionaire_info_people'] = 'People say';
 $string[ 'millionaire_info_telephone'] = 'I think that the correct answer is ';
@@ -156,14 +171,14 @@ $string[ 'millionaire_telephone'] = 'Help of telephone';
 $string[ 'must_select_questioncategory'] = 'You must select a question category';
 $string[ 'must_select_quiz'] = 'You must select a quiz';
 
-//exporthtml_snakes.php
+// File exporthtml_snakes.php.
 $string[ 'html_snakes_check'] = 'Check';
 $string[ 'html_snakes_correct'] = 'Correct!';
 $string[ 'html_snakes_no_selection'] = 'Have to select something!';
 $string[ 'html_snakes_wrong'] = "Your answer isn't correct. Stay on the same seat.";
 $string[ 'score'] = 'Score';
 
-//index.php
+// File index.php.
 $string[ 'helpbookquiz'] = 'When the student answers correct can go to the next chapter.';
 $string[ 'helpcross'] = 'This game takes words from either a Glossary or quiz short answer questions and generates a random crossword puzzle. Teacher can set the maximum number of columns/rows or words that contains. Student can press the button “Check crossword” to check if the answers are correct. Every crossword is dynamic so it is different to every student.';
 $string[ 'helpcryptex'] = 'This game is like a crossword but the answers are hidden inside a random cryptex.';
@@ -178,7 +193,7 @@ $string[ 'modulenameplural'] = 'Games';
 $string[ 'pluginadministration'] = 'Game administration';
 $string[ 'pluginname'] = 'Game';
 
-//lib.php
+// File lib.php.
 $string[ 'attempt'] = 'Attempt';
 $string[ 'bookquiz_questions'] = 'Associate question categories to chapter of book';
 $string[ 'export_to_html'] = 'Export to HTML';
@@ -200,7 +215,7 @@ $string[ 'results'] = 'Results';
 $string[ 'showanswers'] = 'Show answers';
 $string[ 'showattempts'] = 'Show attempts';
 
-//locallib.php
+// File locallib.php.
 $string[ 'attemptfirst'] = 'First attempt';
 $string[ 'attemptlast'] = 'Last attempt';
 $string[ 'convertfrom'] = '-';
@@ -208,7 +223,7 @@ $string[ 'convertto'] = '-';
 $string[ 'gradeaverage'] = 'Average grade';
 $string[ 'gradehighest'] = 'Highest grade';
 
-//mod_form.php
+// File mod_form.php.
 $string[ 'bookquiz_layout'] = 'Layout';
 $string[ 'bookquiz_layout0'] = 'Question at the top of the book';
 $string[ 'bookquiz_layout1'] = 'Question at the bottom of the book';
@@ -276,11 +291,11 @@ $string[ 'sudoku_options'] = 'Sudoku options';
 $string[ 'toptext'] = 'Text at the top of page';
 $string[ 'userdefined'] = 'User defined';
 
-//preview.php
+// File preview.php.
 $string[ 'only_teachers'] = 'Only teacher can see this page';
 $string[ 'preview'] = 'Preview';
 
-//review.php
+// File review.php.
 $string[ 'attempts'] = 'Attempts';
 $string[ 'completedon'] = 'Completed on';
 $string[ 'outof'] = '{$a->grade} out of a maximum of {$a->maxgrade}';
@@ -290,7 +305,7 @@ $string[ 'showall'] = 'Show all';
 $string[ 'startagain'] = 'Start again';
 $string[ 'timetaken'] = 'Time taken';
 
-//settings.php
+// File settings.php.
 $string[ 'hangmanimagesets'] = 'Number of image sets used by hangman';
 $string[ 'hidebookquiz'] = 'Hide the "Book with questions" game';
 $string[ 'hidecross'] = 'Hide the Crossword game';
@@ -310,22 +325,22 @@ $string[ 'confighidemillionaire'] = 'Configs if the Millionaire game is shown to
 $string[ 'confighidesnakes'] = 'Configs if the "Snakes and Ladders" game is shown to teachers or not';
 $string[ 'confighidesudoku'] = 'Configs if the Sudoku game is shown to teachers or not';
 
-//showanswers.php
+// File showanswers.php.
 $string[ 'clearrepetitions'] = 'Clear statistics';
 $string[ 'computerepetitions'] = 'Compute statistics again';
 $string[ 'feedbacks'] = 'Messages correct answer';
 $string[ 'repetitions'] = 'Repetitions';
 
-//showattempts.php
+// File showattempts.php.
 $string[ 'lastip'] = 'IP student';
 $string[ 'showsolution'] = 'solution';
 $string[ 'timefinish'] = 'End of game';
 $string[ 'timelastattempt'] = 'Last attempt';
 $string[ 'timestart'] = 'Start';
 
-//tabs.php
+// File tabs.php.
 
-//view.php
+// File view.php.
 $string[ 'attemptgamenow'] = 'Attempt game now';
 $string[ 'comment'] = 'Comment';
 $string[ 'continueattemptgame'] = 'Continue a previous attempt of game';
diff --git a/millionaire/play.php b/millionaire/play.php
index 13ef6df..394af3f 100755
--- a/millionaire/play.php
+++ b/millionaire/play.php
@@ -1,4 +1,19 @@
-<?php  // $Id: play.php,v 1.31 2012/07/25 11:16:05 bdaloukas Exp $
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
 /**
  * This file plays the game millionaire
  * 
@@ -7,634 +22,612 @@
  * @package game
  **/
 
-function game_millionaire_continue( $id, $game, $attempt, $millionaire, $context)
-{
-	//User must select quiz or question as a source module
-	if( ($game->quizid == 0) and ($game->questioncategoryid == 0)){
-        if( $game->sourcemodule == 'quiz')
-		    print_error( get_string( 'millionaire_must_select_quiz', 'game'));
-        else
+function game_millionaire_continue( $id, $game, $attempt, $millionaire, $context) {
+    // User must select quiz or question as a source module.
+    if (($game->quizid == 0) and ($game->questioncategoryid == 0)) {
+        if ($game->sourcemodule == 'quiz') {
+            print_error( get_string( 'millionaire_must_select_quiz', 'game'));
+        } else {
             print_error( get_string( 'millionaire_must_select_questioncategory', 'game'));
-	}
-	
-	if( $attempt != false and $millionaire != false){
-		//continue an existing game
-		return game_millionaire_play( $id, $game, $attempt, $millionaire, $context);
-	}
-	
-	if( $attempt == false){
-		$attempt = game_addattempt( $game);
-	}
-
-	$newrec = new stdClass();
-	$newrec->id = $attempt->id;
-	$newrec->queryid = 0;
-	$newrec->level = 0;
-	$newrec->state = 0;
-	
-	if( !game_insert_record(  'game_millionaire', $newrec)){
-		print_error( 'error inserting in game_millionaire');
-	}
-
-	game_millionaire_play( $id, $game, $attempt, $newrec, $context);
-}
+        }
+    }
+
+    if ($attempt != false and $millionaire != false) {
+        // Continue an existing game.
+        return game_millionaire_play( $id, $game, $attempt, $millionaire, $context);
+    }
+
+    if ($attempt == false) {
+        $attempt = game_addattempt( $game);
+    }
+
+    $newrec = new stdClass();
+    $newrec->id = $attempt->id;
+    $newrec->queryid = 0;
+    $newrec->level = 0;
+    $newrec->state = 0;
 
+    if (!game_insert_record(  'game_millionaire', $newrec)) {
+        print_error( 'error inserting in game_millionaire');
+    }
 
-function game_millionaire_play( $id, $game, $attempt, $millionaire, $context)
-{
-	global $DB;
+    game_millionaire_play( $id, $game, $attempt, $newrec, $context);
+}
+
+function game_millionaire_play( $id, $game, $attempt, $millionaire, $context) {
+    global $DB;
 
     $buttons = optional_param('buttons', 0, PARAM_INT);
-    $Help5050_x = optional_param('Help5050_x', 0, PARAM_INT);
-    $HelpTelephone_x = optional_param('HelpTelephone_x', 0, PARAM_INT);
-    $HelpPeople_x = optional_param('HelpPeople_x', 0, PARAM_INT);
-    $Quit_x = optional_param('Quit_x', 0, PARAM_INT);
-
-	if( $millionaire->queryid){
-		$query = $DB->get_record( 'game_queries', array( 'id' => $millionaire->queryid));
-	}else
-	{
-		$query = new StdClass;
-	}
+    $help5050x = optional_param('Help5050_x', 0, PARAM_INT);
+    $helptelephonex = optional_param('HelpTelephone_x', 0, PARAM_INT);
+    $helppeoplex = optional_param('HelpPeople_x', 0, PARAM_INT);
+    $quitx = optional_param('Quit_x', 0, PARAM_INT);
+
+    if ($millionaire->queryid) {
+        $query = $DB->get_record( 'game_queries', array( 'id' => $millionaire->queryid));
+    } else {
+        $query = new StdClass;
+    }
 
     $found = 0;
-    for($i=1; $i <= $buttons; $i++){
+    for ($i = 1; $i <= $buttons; $i++) {
         $name = 'btAnswer'.$i;
         $answer = optional_param($name, '', PARAM_RAW);
         if (!empty($answer)) {
             game_millionaire_OnAnswer( $id, $game, $attempt, $millionaire, $query, $i, $context);
             $found = 1;
         }
-	}
-		
-	if( $found == 1)
-	    ;//nothing
-	else if( !empty($Help5050_x))
-		game_millionaire_OnHelp5050( $game, $id,  $millionaire, $game, $query, $context);
-	else if( !empty($HelpTelephone_x))
-		game_millionaire_OnHelpTelephone( $game, $id, $millionaire, $query, $context);
-	else if( !empty($HelpPeople_x))
-		game_millionaire_OnHelpPeople( $game, $id, $millionaire, $query, $context);
-	else if( !empty($Quit_x))
-		game_millionaire_OnQuit( $id,  $game, $attempt, $query, $context);
-    else
-      game_millionaire_ShowNextQuestion( $id, $game, $attempt, $millionaire, $context);
-  }
-  
-
-function game_millionaire_showgrid( $game, $millionaire, $id, $query, $aAnswer, $info, $context)
-{
-    global $OUTPUT;
+    }
+
+    if ($found == 1) {
+        $found = $found; // Nothing.
+    } else if (!empty($help5050x)) {
+        game_millionaire_OnHelp5050( $game, $id,  $millionaire, $game, $query, $context);
+    } else if (!empty($helptelephonex)) {
+        game_millionaire_OnHelpTelephone( $game, $id, $millionaire, $query, $context);
+    } else if (!empty($helppeoplex)) {
+        game_millionaire_OnHelpPeople( $game, $id, $millionaire, $query, $context);
+    } else if (!empty($quitx)) {
+        game_millionaire_OnQuit( $id,  $game, $attempt, $query, $context);
+    } else {
+        game_millionaire_ShowNextQuestion( $id, $game, $attempt, $millionaire, $context);
+    }
+}
+
+function game_millionaire_showgrid( $game, $millionaire, $id, $query, $aanswer, $info, $context) {
+    global $CFG, $OUTPUT;
 
     $question = str_replace( array("\'", '\"'), array("'", '"'), $query->questiontext);
 
-	if( $game->param8 == '')
-	    $color = 408080;
-	else
-	    $color = substr( '000000'.base_convert($game->param8, 10, 16), -6);
-	
-	$color1 = 'black';
-	$color2 = 'DarkOrange';
-	$colorback="white";
-	$stylequestion = "background:$colorback;color:$color1";
-	$stylequestionselected = "background:$colorback;color:$color2";	
-	
-	global $CFG;
-
-	$state = $millionaire->state;
-	$level = $millionaire->level;
-	
-	$background = "style='background:#$color'";
-
-	echo '<form name="Form1" method="post" action="attempt.php" id="Form1">';
-	echo "<table cellpadding=0 cellspacing=0 border=0>\r\n";
-	echo "<tr $background>";
-	echo '<td rowspan='.(17+count( $aAnswer)).'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>';
-	echo "<td colspan=6>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>";
-	echo '<td rowspan='.(17+count( $aAnswer)).'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>';
-	echo "</tr>\r\n";
-
-	echo "<tr height=10%>";
-	echo "<td $background rowspan=3 colspan=2>";
-    
-	$dirgif = 'millionaire/1/';
-    if( $state & 1)
-    {
-		$gif = "5050x";
-		$disabled = "disabled=1";
-    }else
-    {
-		$gif = "5050";
-		$disabled = "";
-    }
-	echo '<input type="image" '.$disabled.' name="Help5050" id="Help5050" Title="50 50" src="'.$OUTPUT->pix_url($dirgif.$gif, 'mod_game').'" alt="" border="0">&nbsp;';
-
-    if( $state & 2)
-    {
-      $gif = "telephonex";
-      $disabled = "disabled=1";
-    }else
-    {
-      $gif = "telephone";
-      $disabled = "";
-    }		
-		echo '<input type="image" name="HelpTelephone" '.$disabled.' id="HelpTelephone" Title="'.get_string( 'millionaire_telephone', 'game').'" src="'.$OUTPUT->pix_url($dirgif.$gif, 'mod_game').'" alt="" border="0">&nbsp;';
-
-    if( $state & 4)
-    {
-      $gif = "peoplex";
-      $disabled = "disabled=1";
-    }else
-    {
-      $gif = "people";
-      $disabled = "";
-    }		
-	echo '<input type="image" name="HelpPeople" '.$disabled.' id="HelpPeople" Title="'.get_string( 'millionaire_helppeople', 'game').'" src="'.$OUTPUT->pix_url($dirgif.$gif, 'mod_game').'" alt="" border="0">&nbsp;';
-
-	echo '<input type="image" name="Quit" id="Quit" Title="'.get_string( 'millionaire_quit', 'game').'" src="'.$OUTPUT->pix_url($dirgif.'x', 'mod_game').'" alt="" border="0">&nbsp;';
-	echo "\r\n";
+    if ($game->param8 == '') {
+        $color = 408080;
+    } else {
+        $color = substr( '000000'.base_convert($game->param8, 10, 16), -6);
+    }
+
+    $color1 = 'black';
+    $color2 = 'DarkOrange';
+    $colorback = "white";
+    $stylequestion = "background:$colorback;color:$color1";
+    $stylequestionselected = "background:$colorback;color:$color2";
+
+    $state = $millionaire->state;
+    $level = $millionaire->level;
+
+    $background = "style='background:#$color'";
+
+    echo '<form name="Form1" method="post" action="attempt.php" id="Form1">';
+    echo "<table cellpadding=0 cellspacing=0 border=0>\r\n";
+    echo "<tr $background>";
+    echo '<td rowspan='.(17 + count( $aanswer)).'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>';
+    echo "<td colspan=6>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>";
+    echo '<td rowspan='.(17 + count( $aanswer)).'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>';
+    echo "</tr>\r\n";
+
+    echo "<tr height=10%>";
+    echo "<td $background rowspan=3 colspan=2>";
+
+    $dirgif = 'millionaire/1/';
+    if ($state & 1) {
+        $gif = "5050x";
+        $disabled = "disabled=1";
+    } else {
+        $gif = "5050";
+        $disabled = "";
+    }
+    echo '<input type="image" '.$disabled.' name="Help5050" id="Help5050" Title="50 50" src="'.
+        $OUTPUT->pix_url($dirgif.$gif, 'mod_game').'" alt="" border="0">&nbsp;';
+
+    if ($state & 2) {
+        $gif = "telephonex";
+        $disabled = "disabled=1";
+    } else {
+        $gif = "telephone";
+        $disabled = "";
+    }
+
+    echo '<input type="image" name="HelpTelephone" '.$disabled.
+        ' id="HelpTelephone" Title="'.get_string( 'millionaire_telephone', 'game').
+        '" src="'.$OUTPUT->pix_url($dirgif.$gif, 'mod_game').'" alt="" border="0">&nbsp;';
+
+    if ($state & 4) {
+        $gif = "peoplex";
+        $disabled = "disabled=1";
+    } else {
+        $gif = "people";
+        $disabled = "";
+    }
+    echo '<input type="image" name="HelpPeople" '.$disabled.' id="HelpPeople" Title="'.
+        get_string( 'millionaire_helppeople', 'game').'" src="'.
+        $OUTPUT->pix_url($dirgif.$gif, 'mod_game').'" alt="" border="0">&nbsp;';
+
+    echo '<input type="image" name="Quit" id="Quit" Title="'.
+        get_string( 'millionaire_quit', 'game').'" src="'.
+        $OUTPUT->pix_url($dirgif.'x', 'mod_game').'" alt="" border="0">&nbsp;';
+    echo "\r\n";
     echo "</td>\r\n";
 
     $styletext = "";
-    if( strpos( $question, 'color:') == false and strpos( $question, 'background:') == false){
+    if (strpos( $question, 'color:') == false and strpos( $question, 'background:') == false) {
         $styletext = "style='$stylequestion'";
     }
 
-    $aVal = array( 100, 200, 300, 400, 500, 1000, 1500, 2000, 4000, 5000, 10000, 20000, 40000, 80000, 150000);
-    for( $i=15; $i >= 1; $i--)
-    {
-      $bTR = false;
-      switch( $i)
-      {
-      case 15:
-        echo "<td rowspan=".(16+count( $aAnswer))." $background>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>\r\n";
-        $bTR = true;
-        break;
-      case 14:
-      case 13:
-        echo "<tr>\n";
-        $bTR = true;
-        break;
-      case 12:
-        //$question = game_filterquestion($question, $query->questionid, $context->id, $game->course);
-        $question = game_show_query( $game, $query, $question);
-        echo "<tr>";
-        echo "<td rowspan=12 colspan=2 valign=top style=\"$styletext\">$question</td>\r\n";
-        $bTR = true;
-        break;
-      case 11:
-      case 10:
-      case 9:
-      case 8:
-      case 7:
-      case 6:
-      case 5:
-      case 4:
-      case 3:
-      case 2:
-      case 1:
-        echo "<tr>";
-        $bTR = true;
-        break;
-      default:
-        echo "<tr>";
-        $bTR = true;
-      }
-      
-      if( $i == $level+1)
-        $style = "background:$color1;color:$color2";
-      else
-        $style = $stylequestion;
-      echo "<td style='$style' align=right>$i</td>";
-      
-      if( $i < $level+1)
-        echo "<td style='$style'>&nbsp;&nbsp;*&nbsp;&nbsp;&nbsp;</td>";
-      else if( $i == 15 and $level <= 1)
-        echo "<td style='$style'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>";
-      else
-        echo "<td style='$style'></td>";
-      echo "<td style='$style' align=right>".sprintf( "%10d", $aVal[ $i-1])."</td>\r\n";
-      if( $bTR)
-        echo "</tr>\r\n";
+    $aval = array( 100, 200, 300, 400, 500, 1000, 1500, 2000, 4000, 5000, 10000, 20000, 40000, 80000, 150000);
+    for ($i = 15; $i >= 1; $i--) {
+        $btr = false;
+
+        switch ($i) {
+            case 15:
+                echo "<td rowspan=".(16 + count( $aanswer)).
+                    "$background>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>\r\n";
+                $btr = true;
+                break;
+            case 14:
+            case 13:
+                echo "<tr>\n";
+                $btr = true;
+                break;
+            case 12:
+                $question = game_show_query( $game, $query, $question);
+                echo "<tr>";
+                echo "<td rowspan=12 colspan=2 valign=top style=\"$styletext\">$question</td>\r\n";
+                $btr = true;
+                break;
+            case 11:
+            case 10:
+            case 9:
+            case 8:
+            case 7:
+            case 6:
+            case 5:
+            case 4:
+            case 3:
+            case 2:
+            case 1:
+                echo "<tr>";
+                $btr = true;
+                break;
+            default:
+                echo "<tr>";
+                $btr = true;
+        }
+
+        if ($i == $level + 1) {
+            $style = "background:$color1;color:$color2";
+        } else {
+            $style = $stylequestion;
+        }
+
+        echo "<td style='$style' align=right>$i</td>";
+
+        if ($i < $level + 1) {
+            echo "<td style='$style'>&nbsp;&nbsp;*&nbsp;&nbsp;&nbsp;</td>";
+        } else if ($i == 15 and $level <= 1) {
+            echo "<td style='$style'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>";
+        } else {
+            echo "<td style='$style'></td>";
+        }
+        echo "<td style='$style' align=right>".sprintf( "%10d", $aval[ $i - 1])."</td>\r\n";
+        if ($btr) {
+            echo "</tr>\r\n";
+        }
     }
     echo "<tr $background><td colspan=10>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td></tr>\r\n";
 
-    $bFirst = true;
+    $bfirst = true;
     $letters = get_string( 'lettersall', 'game');
-    for( $i=1; $i <= count( $aAnswer); $i++)
-    {
-		$name = "btAnswer".$i;
-		$s = game_substr( $letters, $i-1, 1);
-      
-		$disabled = ( $state == 15 ? "disabled=1" : "");
-        
-		$style = $stylequestion;
-        if( (strpos( $aAnswer[ $i-1], 'color:') != false) or (strpos( $aAnswer[ $i-1], 'background:') != false)){
+    for ($i = 1; $i <= count( $aanswer); $i++) {
+        $name = "btAnswer".$i;
+        $s = game_substr( $letters, $i - 1, 1);
+
+        $disabled = ( $state == 15 ? "disabled=1" : "");
+
+        $style = $stylequestion;
+        if ((strpos( $aanswer[ $i - 1], 'color:') != false) or (strpos( $aanswer[ $i - 1], 'background:') != false)) {
             $style = '';
         }
-		if( $state == 15 and $i+1 == $query->correct){
-			$style = $stylequestionselected;
-		}
-            		
-		$button = '<input style="'.$style.'" '.$disabled.'type="submit" name="'.$name.'" value="'.$s.'" id="'.$name."1\"".
-                " onmouseover=\"this.style.backgroundColor = '$color2';$name.style.backgroundColor = '$color2';\" ".
-                " onmouseout=\"this.style.backgroundColor = '$colorback';$name.style.backgroundColor = '$colorback';\" >";
-        $text = game_filtertext($aAnswer[ $i-1],$game->course);
-  	 	$answer = "<span id=$name style=\"$style\" ".
-          	 	" onmouseover=\"this.style.backgroundColor = '$color2';{$name}1.style.backgroundColor = '$color2';\" ".
-          	 	" onmouseout=\"this.style.backgroundColor = '$colorback';{$name}1.style.backgroundColor = '$colorback';\" >".
-          	 	$text.'</span>';
-		if( $aAnswer[ $i-1] != ""){
-			echo "<tr>\n";
-			
+        if ($state == 15 and $i + 1 == $query->correct) {
+            $style = $stylequestionselected;
+        }
+
+        $button = '<input style="'.$style.'" '.$disabled.'type="submit" name="'.$name.'" value="'.$s.'" id="'.$name."1\"".
+            " onmouseover=\"this.style.backgroundColor = '$color2';$name.style.backgroundColor = '$color2';\" ".
+            " onmouseout=\"this.style.backgroundColor = '$colorback';$name.style.backgroundColor = '$colorback';\" >";
+        $text = game_filtertext($aanswer[ $i - 1], $game->course);
+        $answer = "<span id=$name style=\"$style\" ".
+            " onmouseover=\"this.style.backgroundColor = '$color2';{$name}1.style.backgroundColor = '$color2';\" ".
+            " onmouseout=\"this.style.backgroundColor = '$colorback';{$name}1.style.backgroundColor = '$colorback';\" >".
+            $text.'</span>';
+        if ($aanswer[ $i - 1] != "") {
+            echo "<tr>\n";
+
             echo "<td style='$stylequestion'> $button</td>\n";
-			echo "<td $style width=100%> &nbsp; $answer</td>";
-			if( $bFirst){
-				$bFirst = false;
-				$info = game_filtertext($info, $game->course);
-				echo "<td style=\"$style\" rowspan=".count( $aAnswer)." colspan=3>$info</td>";
-			}
-    		echo "\r\n</tr>\r\n";
-		}
-	}
-	echo "<tr><td colspan=10 $background>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td></tr>\r\n";
-	echo "<input type=hidden name=state value=\"$state\">\r\n";
-	echo '<input type=hidden name=id value="'.$id.'">';
-	echo "<input type=hidden name=buttons value=\"".count( $aAnswer)."\">\r\n";
+            echo "<td $style width=100%> &nbsp; $answer</td>";
+            if ($bfirst) {
+                $bfirst = false;
+                $info = game_filtertext($info, $game->course);
+                echo "<td style=\"$style\" rowspan=".count( $aanswer)." colspan=3>$info</td>";
+            }
+            echo "\r\n</tr>\r\n";
+        }
+    }
+    echo "<tr><td colspan=10 $background>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td></tr>\r\n";
+    echo "<input type=hidden name=state value=\"$state\">\r\n";
+    echo '<input type=hidden name=id value="'.$id.'">';
+    echo "<input type=hidden name=buttons value=\"".count( $aanswer)."\">\r\n";
 
     echo "</table>\r\n";
     echo "</form>\r\n";
 }
 
-function game_millionaire_ShowNextQuestion( $id, $game, $attempt, $millionaire, $context)
-{
-	game_millionaire_SelectQuestion( $aAnswer, $game, $attempt, $millionaire, $query, $context);
-	
-	if( $game->toptext != ''){
-		echo $game->toptext.'<br><br>';
-	}
-	
-	game_millionaire_ShowGrid( $game, $millionaire, $id, $query, $aAnswer, "", $context);
-	
-	if( $game->bottomtext != ''){
-		echo '<br>'.$game->bottomtext;
-	}
+function game_millionaire_shownextquestion( $id, $game, $attempt, $millionaire, $context) {
+    game_millionaire_selectquestion( $aanswer, $game, $attempt, $millionaire, $query, $context);
+
+    if ($game->toptext != '') {
+        echo $game->toptext.'<br><br>';
+    }
+
+    game_millionaire_showgrid( $game, $millionaire, $id, $query, $aanswer, "", $context);
+
+    if ($game->bottomtext != '') {
+        echo '<br>'.$game->bottomtext;
+    }
 }
 
-//updates tables: games_millionaire, game_attempts, game_questions
-function game_millionaire_SelectQuestion( &$aAnswer, $game, $attempt, &$millionaire, &$query, $context)
-{
-	global $DB, $USER;
-	
-	if( ($game->sourcemodule != 'quiz') and ($game->sourcemodule != 'question')){
-		print_error( get_string('millionaire_sourcemodule_must_quiz_question', 'game', get_string( 'modulename', 'quiz')).' '.get_string( 'modulename', $attempt->sourcemodule));
-	}
-	
-	if( $millionaire->queryid != 0){
-		game_millionaire_loadquestions( $game, $millionaire, $query, $aAnswer, $context);
-		return;
-	}
-
-	if( $game->sourcemodule == 'quiz'){
-		if( $game->quizid == 0){
-			print_error( get_string( 'must_select_quiz', 'game'));
-		}
-        if( game_get_moodle_version() < '02.07')
-        {
-		    $select = "qtype='multichoice' AND quiz='$game->quizid' AND qmo.questionid=q.id".
-						" AND qqi.question=q.id";
-		    $table = "{quiz_question_instances} qqi,{question} q, {qtype_multichoice_options} qmo";
+// Updates tables: games_millionaire, game_attempts, game_questions.
+function game_millionaire_selectquestion( &$aanswer, $game, $attempt, &$millionaire, &$query, $context) {
+    global $DB, $USER;
+
+    if (($game->sourcemodule != 'quiz') and ($game->sourcemodule != 'question')) {
+        print_error( get_string('millionaire_sourcemodule_must_quiz_question', 'game',
+            get_string( 'modulename', 'quiz')).' '.get_string( 'modulename', $attempt->sourcemodule));
+    }
+
+    if ($millionaire->queryid != 0) {
+        game_millionaire_loadquestions( $game, $millionaire, $query, $aanswer, $context);
+        return;
+    }
+
+    if ($game->sourcemodule == 'quiz') {
+        if ($game->quizid == 0) {
+            print_error( get_string( 'must_select_quiz', 'game'));
+        }
+        if (game_get_moodle_version() < '02.07') {
+            $select = "qtype='multichoice' AND quiz='$game->quizid' AND qmo.questionid=q.id".
+                " AND qqi.question=q.id";
+            $table = "{quiz_question_instances} qqi,{question} q, {qtype_multichoice_options} qmo";
             $order = '';
-        }else
-        {
-		    $select = "qtype='multichoice' AND qs.quizid='$game->quizid' AND qmo.questionid=q.id".
-						" AND qs.questionid=q.id";
-		    $table = "{quiz_slots} qs,{question} q, {qtype_multichoice_options} qmo";    
-            $order = 'qs.page,qs.slot';        
+        } else {
+            $select = "qtype='multichoice' AND qs.quizid='$game->quizid' AND qmo.questionid=q.id".
+                " AND qs.questionid=q.id";
+            $table = "{quiz_slots} qs,{question} q, {qtype_multichoice_options} qmo";
+            $order = 'qs.page,qs.slot';
+        }
+    } else {
+        if ($game->questioncategoryid == 0) {
+            print_error( get_string( 'must_select_questioncategory', 'game'));
         }
-	}else
-	{
-		if( $game->questioncategoryid == 0){
-			print_error( get_string( 'must_select_questioncategory', 'game'));
-		}	
-		
-		//include subcategories				
-		$select = 'category='.$game->questioncategoryid;
-        if( $game->subcategories){
+
+        // Include subcategories.
+        $select = 'category='.$game->questioncategoryid;
+        if ($game->subcategories) {
             $cats = question_categorylist( $game->questioncategoryid);
-            if( count( $cats)){
+            if (count( $cats)) {
                 $select = 'q.category in ('.implode(',', $cats).')';
-            }            
-        }  						
-		$select .= " AND qtype='multichoice' AND qmo.single=1 AND qmo.questionid=q.id";
-		
-		$table = '{question} q, {qtype_multichoice_options} qmo';
-	}
-	$select .= ' AND hidden=0';
-	if( $game->shuffle or $game->quizid == 0)
-		$questionid = game_question_selectrandom( $game, $table, $select, 'q.id as id', true);
-	else
-		$questionid = game_millionaire_select_serial_question( $game, $table, $select, 'q.id as id', $millionaire->level, $order);
-	
-	if( $questionid == 0){
-		print_error( get_string( 'no_questions', 'game'));
-	}
-	
-	$q = $DB->get_record( 'question', array( 'id' => $questionid), 'id,questiontext');
-
-	$recs = $DB->get_records( 'question_answers', array( 'question' => $questionid));
-	
-	if( $recs === false){
-		print_error( get_string( 'no_questions', 'game'));
-	}
-	
-	$correct = 0;
-	$ids = array();
-	foreach( $recs as $rec){
-        $aAnswer[] = game_filterquestion_answer(str_replace( '\"', '"', $rec->answer), $rec->id, $context->id, $game->course);
-
-		$ids[] = $rec->id;
-		if( $rec->fraction == 1){
-			$correct = $rec->id;
-		}
-	}
-
-	$count = count( $aAnswer);
-	for($i=1; $i <= $count; $i++){
-		$sel = mt_rand(0, $count-1);
-		
-		$temp = array_splice( $aAnswer, $sel, 1);
-		$aAnswer[ ] = $temp[ 0];
-
-		$temp = array_splice( $ids, $sel, 1);
-		$ids[ ] = $temp[ 0];
-	}
-	
-	$query = new StdClass;
-	$query->attemptid =$attempt->id;
-	$query->gamekind = $game->gamekind;
-	$query->gameid = $game->id;
-	$query->userid = $USER->id;
-	$query->sourcemodule = $game->sourcemodule;
+            }
+        }
+        $select .= " AND qtype='multichoice' AND qmo.single=1 AND qmo.questionid=q.id";
+
+        $table = '{question} q, {qtype_multichoice_options} qmo';
+    }
+    $select .= ' AND hidden=0';
+    if ($game->shuffle or $game->quizid == 0) {
+        $questionid = game_question_selectrandom( $game, $table, $select, 'q.id as id', true);
+    } else {
+        $questionid = game_millionaire_select_serial_question( $game, $table, $select, 'q.id as id', $millionaire->level, $order);
+    }
+
+    if ($questionid == 0) {
+        print_error( get_string( 'no_questions', 'game'));
+    }
+
+    $q = $DB->get_record( 'question', array( 'id' => $questionid), 'id,questiontext');
+
+    $recs = $DB->get_records( 'question_answers', array( 'question' => $questionid));
+
+    if ($recs === false) {
+        print_error( get_string( 'no_questions', 'game'));
+    }
+
+    $correct = 0;
+    $ids = array();
+    foreach ($recs as $rec) {
+        $aanswer[] = game_filterquestion_answer(str_replace( '\"', '"', $rec->answer), $rec->id, $context->id, $game->course);
+
+        $ids[] = $rec->id;
+        if ($rec->fraction == 1) {
+            $correct = $rec->id;
+        }
+    }
+
+    $count = count( $aanswer);
+    for ($i = 1; $i <= $count; $i++) {
+        $sel = mt_rand(0, $count - 1);
+
+        $temp = array_splice( $aanswer, $sel, 1);
+        $aanswer[ ] = $temp[ 0];
+
+        $temp = array_splice( $ids, $sel, 1);
+        $ids[ ] = $temp[ 0];
+    }
+
+    $query = new StdClass;
+    $query->attemptid = $attempt->id;
+    $query->gamekind = $game->gamekind;
+    $query->gameid = $game->id;
+    $query->userid = $USER->id;
+    $query->sourcemodule = $game->sourcemodule;
     $query->glossaryentryid = 0;
-	$query->questionid = $questionid;
-	$query->questiontext = addslashes( $q->questiontext);
-	$query->answertext = implode( ',', $ids);
-	$query->correct = array_search( $correct, $ids) + 1;
-	if( !$query->id = $DB->insert_record(  'game_queries', $query)){
-	    print_object( $query);
-		print_error( 'error inserting to game_queries');
-	}
-	
-	$updrec = new StdClass;
-	$updrec->id = $millionaire->id;
-	$updrec->queryid = $query->id;	
-	
-	if( !$newid = $DB->update_record(  'game_millionaire', $updrec)){
-		print_error( 'error updating in game_millionaire');
-	}
-	
-	$score = $millionaire->level / 15;
-	game_updateattempts( $game, $attempt, $score, 0);
-	game_update_queries( $game, $attempt, $query, $score, '');
+    $query->questionid = $questionid;
+    $query->questiontext = addslashes( $q->questiontext);
+    $query->answertext = implode( ',', $ids);
+    $query->correct = array_search( $correct, $ids) + 1;
+    if (!$query->id = $DB->insert_record(  'game_queries', $query)) {
+        print_error( 'error inserting to game_queries');
+    }
+
+    $updrec = new StdClass;
+    $updrec->id = $millionaire->id;
+    $updrec->queryid = $query->id;
+
+    if (!$newid = $DB->update_record(  'game_millionaire', $updrec)) {
+        print_error( 'error updating in game_millionaire');
+    }
+
+    $score = $millionaire->level / 15;
+    game_updateattempts( $game, $attempt, $score, 0);
+    game_update_queries( $game, $attempt, $query, $score, '');
 }
 
-function game_millionaire_select_serial_question( $game, $table, $select, $id_fields="id", $level, $order)
-{
+function game_millionaire_select_serial_question( $game, $table, $select, $idfields = "id", $level, $order) {
     global $DB, $USER;
-    
-    $sql  = "SELECT $id_fields,$id_fields FROM ".$table." WHERE $select ";
-    if( $order != '')
+
+    $sql  = "SELECT $idfields,$id_fields FROM ".$table." WHERE $select ";
+    if ($order != '') {
         $sql .= " ORDER BY $order";
-       
-    if( ($recs = $DB->get_records_sql( $sql)) == false)
+    }
+
+    if (($recs = $DB->get_records_sql( $sql)) == false) {
         return false;
+    }
     $questions = array();
-    foreach( $recs as $rec)
-        $questions[] = $rec->id;            
-         
+    foreach ($recs as $rec) {
+        $questions[] = $rec->id;
+    }
+
     $count = count( $questions);
-    if( $count == 0)
+    if ($count == 0) {
         return false;
-    
-    $from = round($level * ($count-1) / 15);
-    $to = round(max( $from, ($level+1) * ($count-1) / 15))-1;
-    if( $to < $from)
+    }
+
+    $from = round($level * ($count - 1) / 15);
+    $to = round(max( $from, ($level + 1) * ($count - 1) / 15)) - 1;
+    if ($to < $from) {
         $to = $from;
+    }
     $pos = mt_rand( round( $from), round( $to));
     return $questions[ $pos];
 }
 
-function game_millionaire_loadquestions( $game, $millionaire, &$query, &$aAnswer, $context)
-{
+function game_millionaire_loadquestions( $game, $millionaire, &$query, &$aanswer, $context) {
     global $DB;
 
-	$query = $DB->get_record( 'game_queries', array( 'id' => $millionaire->queryid), 'id,questiontext,answertext,correct,questionid');
+    $query = $DB->get_record( 'game_queries', array( 'id' => $millionaire->queryid),
+        'id,questiontext,answertext,correct,questionid');
+
+    $aids = explode( ',', $query->answertext);
+    $aanswer = array();
+    foreach ($aids as $id) {
+        $rec = $DB->get_record( 'question_answers', array( 'id' => $id), 'id,answer');
 
-	$aids = explode( ',', $query->answertext);
-	$aAnswer = array();
-	foreach( $aids as $id)
-	{
-		$rec = $DB->get_record( 'question_answers', array( 'id' => $id), 'id,answer');
-		
-        $aAnswer[] = game_filterquestion_answer(str_replace( '\"', '"', $rec->answer), $id, $context->id, $game->course);		
-	}
+        $aanswer[] = game_filterquestion_answer(str_replace( '\"', '"', $rec->answer), $id, $context->id, $game->course);
+    }
 }
 
-//flag 1:5050, 2:telephone 4:people
-function game_millionaire_setstate( &$millionaire, $mask)
-{
+// Flag 1:5050, 2:telephone 4:people.
+function game_millionaire_setstate( &$millionaire, $mask) {
     global $DB;
 
-	$millionaire->state |= $mask;
-    
+    $millionaire->state |= $mask;
+
     $updrec = new stdClass();
-	$updrec->id = $millionaire->id;
-	$updrec->state = $millionaire->state;
-	if( !$DB->update_record(  'game_millionaire', $updrec)){
-		print_error( 'error updating in game_millionaire');
-	}	
+    $updrec->id = $millionaire->id;
+    $updrec->state = $millionaire->state;
+    if (!$DB->update_record(  'game_millionaire', $updrec)) {
+        print_error( 'error updating in game_millionaire');
+    }
 }
 
+function game_millionaire_onhelp5050( $game, $id,  &$millionaire, $query, $context) {
+    game_millionaire_loadquestions( $game, $millionaire, $query, $aanswer, $context);
 
-function game_millionaire_onhelp5050( $game, $id,  &$millionaire, $query, $context)
-{
-	game_millionaire_loadquestions( $game, $millionaire, $query, $aAnswer, $context);
-	
-	if( ($millionaire->state & 1) != 0)
-	{
-		game_millionaire_ShowGrid( $game, $millionaire, $id, $query, $aAnswer, '', $context);
-		return;
-	}
-		
-	game_millionaire_setstate( $millionaire, 1);
-	
-	$n = count( $aAnswer);
-	if( $n > 2)
-	{
-		for(;;)
-		{
-			$wrong = mt_rand( 1, $n);
-			if( $wrong != $query->correct){
-				break;
-			}
-		}
-		for( $i=1; $i <= $n; $i++)
-		{
-			if( $i <> $wrong and $i <> $query->correct){
-				$aAnswer[ $i-1] = "";
-			}
-		}
-	}
-	
-	game_millionaire_showgrid(  $game, $millionaire, $id, $query, $aAnswer, '', $context);
+    if (($millionaire->state & 1) != 0) {
+        game_millionaire_showgrid( $game, $millionaire, $id, $query, $aanswer, '', $context);
+        return;
+    }
+
+    game_millionaire_setstate( $millionaire, 1);
+
+    $n = count( $aanswer);
+    if ($n > 2) {
+        for (;;) {
+            $wrong = mt_rand( 1, $n);
+            if ($wrong != $query->correct) {
+                break;
+            }
+        }
+        for ($i = 1; $i <= $n; $i++) {
+            if ($i <> $wrong and $i <> $query->correct) {
+                $aanswer[ $i - 1] = "";
+            }
+        }
+    }
+
+    game_millionaire_showgrid(  $game, $millionaire, $id, $query, $aanswer, '', $context);
 }
 
-    function game_millionaire_OnHelpTelephone(  $game, $id,  &$millionaire, $query, $context)
-    {
-		game_millionaire_loadquestions( $game, $millionaire, $query, $aAnswer, $context);
-
-		if( ($millionaire->state & 2) != 0)
-		{
-			game_millionaire_ShowGrid( $game, $millionaire, $id, $query, $aAnswer, '', $context);
-			return;
-		}
-		
-		game_millionaire_setstate( $millionaire, 2);
-        
-		$n = count( $aAnswer);
-		if( $n < 2){
-			$wrong = $query->correct;
-		}else
-		{
-			for(;;)
-			{
-				$wrong = mt_rand( 1, $n);
-				if( $wrong != $query->correct)
-					break;
-			}
-		}
-		//with 80% gives the correct answer
-		if( mt_rand( 1, 10) <= 8)
-			$response = $query->correct;
-		else
-			$response = $wrong;
-          
-		$info = get_string( 'millionaire_info_telephone','game').'<br><b>'.$aAnswer[ $response-1].'</b>';
-		
-        game_millionaire_ShowGrid( $game, $millionaire, $id, $query, $aAnswer, $info, $context);
-    }
-
-    function game_millionaire_OnHelpPeople( $game, $id,  &$millionaire, $query, $context)
-    {
-		game_millionaire_loadquestions( $game, $millionaire, $query, $aAnswer, $context);
-		
-		if( ($millionaire->state & 4) != 0){
-			game_millionaire_ShowGrid( $game, $millionaire, $id, $query, $aAnswer, '', $context);
-			return;
-		}
-		
-		game_millionaire_setstate( $millionaire, 4);
-		
-        $n = count( $aAnswer);
-        $sum = 0;
-        $aPercent = array();
-        for( $i = 0; $i+1 < $n; $i++)
-        {
-			$percent = mt_rand( 0, 100-$sum);
-			$aPercent[ $i] = $percent;
-			$sum += $percent;
+function game_millionaire_onhelptelephone(  $game, $id,  &$millionaire, $query, $context) {
+    game_millionaire_loadquestions( $game, $millionaire, $query, $aanswer, $context);
+
+    if (($millionaire->state & 2) != 0) {
+        game_millionaire_ShowGrid( $game, $millionaire, $id, $query, $aanswer, '', $context);
+        return;
+    }
+
+    game_millionaire_setstate( $millionaire, 2);
+
+    $n = count( $aanswer);
+    if ($n < 2) {
+        $wrong = $query->correct;
+    } else {
+        for (;;) {
+            $wrong = mt_rand( 1, $n);
+            if ($wrong != $query->correct) {
+                break;
+            }
         }
-        $aPercent[ $n-1] = 100 - $sum;
-        if( mt_rand( 1, 100) <= 80)
-        {
-          //with percent 80% sets in the correct answer the biggest percent
-          $max_pos = 0;
-          for( $i=1; $i+1 < $n; $i++)
-          {
-            if( $aPercent[ $i] >= $aPercent[ $max_pos])
-              $max_pos = $i;
-          }
-          $temp = $aPercent[ $max_pos];
-          $aPercent[ $max_pos] = $aPercent[ $query->correct-1];
-          $aPercent[ $query->correct-1] = $temp;
+    }
+
+    // With 80% gives the correct answer.
+    if (mt_rand( 1, 10) <= 8) {
+        $response = $query->correct;
+    } else {
+        $response = $wrong;
+    }
+
+    $info = get_string( 'millionaire_info_telephone', 'game').'<br><b>'.$aanswer[ $response - 1].'</b>';
+
+    game_millionaire_showgrid( $game, $millionaire, $id, $query, $aanswer, $info, $context);
+}
+
+function game_millionaire_onhelppeople( $game, $id,  &$millionaire, $query, $context) {
+    game_millionaire_loadquestions( $game, $millionaire, $query, $aanswer, $context);
+
+    if (($millionaire->state & 4) != 0) {
+        game_millionaire_showgrid( $game, $millionaire, $id, $query, $aanswer, '', $context);
+        return;
+    }
+
+    game_millionaire_setstate( $millionaire, 4);
+
+    $n = count( $aanswer);
+    $sum = 0;
+    $apercent = array();
+    for ($i = 0; $i + 1 < $n; $i++) {
+        $percent = mt_rand( 0, 100 - $sum);
+        $apercent[ $i] = $percent;
+        $sum += $percent;
+    }
+    $apercent[ $n - 1] = 100 - $sum;
+    if (mt_rand( 1, 100) <= 80) {
+        // With percent 80% sets in the correct answer the biggest percent.
+        $maxpos = 0;
+        for ($i = 1; $i + 1 < $n; $i++) {
+            if ($apercent[ $i] >= $apercent[ $maxpos]) {
+                $maxpos = $i;
+            }
+            $temp = $apercent[ $maxpos];
+            $apercent[ $maxpos] = $apercent[ $query->correct - 1];
+            $apercent[ $query->correct - 1] = $temp;
+        }
+    }
+
+    $info = '<br>'.get_string( 'millionaire_info_people', 'game').':<br>';
+    for ($i = 0; $i < $n; $i++) {
+        $info .= "<br>".  game_substr( get_string( 'lettersall', 'game'), $i, 1) ." : ".$apercent[ $i]. ' %';
+    }
+
+    game_millionaire_showgrid( $game, $millionaire, $id, $query, $aanswer, game_substr( $info, 4), $context);
+}
+
+function game_millionaire_onanswer( $id, $game, $attempt, &$millionaire, $query, $answer, $context) {
+    global $DB;
+
+    game_millionaire_loadquestions( $game, $millionaire, $query, $aanswer, $context);
+    if ($answer == $query->correct) {
+        if ($millionaire->level < 15) {
+            $millionaire->level++;
         }
-        
-        $info = '<br>'.get_string( 'millionaire_info_people', 'game').':<br>';
-        for( $i=0; $i < $n; $i++){
-			$info .= "<br>".  game_substr(  get_string( 'lettersall', 'game'), $i, 1) ." : ".$aPercent[ $i]. ' %';
-		}  
-		
-        game_millionaire_ShowGrid( $game, $millionaire, $id, $query, $aAnswer, game_substr( $info, 4), $context);
-    }
-  
-
-    function game_millionaire_OnAnswer( $id, $game, $attempt, &$millionaire, $query, $answer, $context)
-    {
-		global $DB;
-
-		game_millionaire_loadquestions( $game, $millionaire, $query, $aAnswer, $context);
-		if( $answer == $query->correct)
-		{
-			if( $millionaire->level < 15){
-				$millionaire->level++;
-			}
-			$finish = ($millionaire->level == 15 ? 1 : 0);			
-			$scorequestion = 1;
-		}else
-		{
-			$finish = 1;
-			$scorequestion = 0;
-		}
-
-		$score = $millionaire->level / 15;
-		
-		game_update_queries( $game, $attempt, $query, $scorequestion, $answer);
-		game_updateattempts( $game, $attempt, $score, $finish);
-
-        $updrec = new stdClass();
-		$updrec->id = $millionaire->id;
-		$updrec->level = $millionaire->level;
-		$updrec->queryid = 0;
-		if( !$DB->update_record(  'game_millionaire', $updrec)){
-			print_error( 'error updating in game_millionaire');
-		}
-		
-		if( $answer == $query->correct)
-		{
-			//correct
-			if( $finish){
-				echo get_string( 'win', 'game');
-				game_millionaire_OnQuit( $id, $game, $attempt, $query);
-			}else
-			{
-				$millionaire->queryid = 0;		//so the next function select a new question
-				
-				game_millionaire_ShowNextQuestion( $id, $game, $attempt, $millionaire, $context);
-			}
-		}else
-		{
-			//wrong answer
-			$info = get_string( 'millionaire_info_wrong_answer', 'game').
-					'<br><br><b><center>'.$aAnswer[ $query->correct-1].'</b>';
-				
-			$millionaire->state = 15;
-			game_millionaire_ShowGrid( $game, $millionaire, $id, $query, $aAnswer, $info, $context);
-		}
-    }
-
-	function game_millionaire_onquit( $id, $game, $attempt, $query)
-	{
-		global $CFG, $DB;
-
-		game_updateattempts( $game, $attempt, -1, true);
-
-		if (! $cm = $DB->get_record( 'course_modules', array( 'id' => $id))) {
-			print_error( "Course Module ID was incorrect id=$id");
-		}
-		
-		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> ';
-	}
+        $finish = ($millionaire->level == 15 ? 1 : 0);
+        $scorequestion = 1;
+    } else {
+        $finish = 1;
+        $scorequestion = 0;
+    }
+
+    $score = $millionaire->level / 15;
+
+    game_update_queries( $game, $attempt, $query, $scorequestion, $answer);
+    game_updateattempts( $game, $attempt, $score, $finish);
 
+    $updrec = new stdClass();
+    $updrec->id = $millionaire->id;
+    $updrec->level = $millionaire->level;
+    $updrec->queryid = 0;
+    if (!$DB->update_record(  'game_millionaire', $updrec)) {
+        print_error( 'error updating in game_millionaire');
+    }
+
+    if ($answer == $query->correct) {
+        // Correct.
+        if ($finish) {
+            echo get_string( 'win', 'game');
+            game_millionaire_OnQuit( $id, $game, $attempt, $query);
+        } else {
+            $millionaire->queryid = 0;  // So the next function select a new question.
+        }
+        game_millionaire_ShowNextQuestion( $id, $game, $attempt, $millionaire, $context);
+    } else {
+        // Wrong answer.
+        $info = get_string( 'millionaire_info_wrong_answer', 'game').
+            '<br><br><b><center>'.$aanswer[ $query->correct - 1].'</b>';
+
+        $millionaire->state = 15;
+        game_millionaire_ShowGrid( $game, $millionaire, $id, $query, $aanswer, $info, $context);
+    }
+}
+
+function game_millionaire_onquit( $id, $game, $attempt, $query) {
+    global $CFG, $DB;
+
+    game_updateattempts( $game, $attempt, -1, true);
+
+    if (! $cm = $DB->get_record( 'course_modules', array( 'id' => $id))) {
+        print_error( "Course Module ID was incorrect id=$id");
+    }
+
+    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> ';
+}
diff --git a/report/default.php b/report/default.php
index 65cf3f7..a40d026 100755
--- a/report/default.php
+++ b/report/default.php
@@ -1,49 +1,63 @@
-<?php  // $Id: default.php,v 1.2 2012/07/25 11:16:07 bdaloukas Exp $ 
-
-////////////////////////////////////////////////////////////////////
-/// Default class for report plugins                            
-///                                                               
-/// Doesn't do anything on it's own -- it needs to be extended.   
-/// This class displays quiz reports.  Because it is called from 
-/// within /mod/game/report.php you can assume that the page header
-/// and footer are taken care of.
-/// 
-/// This file can refer to itself as report.php to pass variables 
-/// to itself - all these will also be globally available.  You must 
-/// pass "id=$cm->id" or q=$quiz->id", and "mode=reportname".
-////////////////////////////////////////////////////////////////////
-
-// Included by ../report.php
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/*
+ * Default class for report plugins
+ *
+ * Doesn't do anything on it's own -- it needs to be extended.
+ * This class displays quiz reports.  Because it is called from
+ * within /mod/game/report.php you can assume that the page header
+ * and footer are taken care of.
+ *
+ * This file can refer to itself as report.php to pass variables
+ * to itself - all these will also be globally available.  You must
+ * pass "id=$cm->id" or q=$quiz->id", and "mode=reportname".
+ */
+
+// Included by ../report.php.
 
 class game_default_report {
 
-    function display($cm, $course, $game) {     /// This function just displays the report
+    public function display($cm, $course, $game) {
+        // This function just displays the report.
         return true;
     }
 
-    function print_header_and_tabs($cm, $course, $game, $reportmode="overview", $meta=""){
+    public function print_header_and_tabs($cm, $course, $game, $reportmode = "overview", $meta = "") {
         global $CFG;
-        /// Define some strings
+
+        // Define some strings.
         $strgames = get_string("modulenameplural", "game");
         $strgame  = get_string("modulename", "game");
-        /// Print the page header
 
-        if( function_exists( 'build_navigation')){
+        // Print the page header.
+        if (function_exists( 'build_navigation')) {
             $navigation = build_navigation('', $cm);
             echo $OUTPUT->heading( $course->shortname, $course->shortname, $navigation);
-        }else{    
+        } else {
             echo $OUTPUT->heading(format_string($game->name), "",
                      "<a href=\"index.php?id=$course->id\">$strgames</a>
                       -> ".format_string($game->name),
                      '', $meta, true, update_module_button($cm->id, $course->id, $strgame), navmenu($course, $cm));
         }
-    
-        /// Print the tabs    
+
+        // Print the tabs.
         $currenttab = 'reports';
         $mode = $reportmode;
-		
-        include('tabs.php');
+
+        require('tabs.php');
     }
 }
-
-?>
diff --git a/report/overview/report.php b/report/overview/report.php
index 684d7b3..4a4723b 100755
--- a/report/overview/report.php
+++ b/report/overview/report.php
@@ -1,4 +1,19 @@
 <?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
 /**
  * This script lists student attempts
  *
@@ -15,38 +30,38 @@ class game_report extends game_default_report {
     /**
      * Display the report.
      */
-    function display($game, $cm, $course) {
+    public function display($game, $cm, $course) {
         global $CFG, $SESSION, $db, $QTYPES;
 
-        // Define some strings
-        $strreallydel  = addslashes(get_string('deleteattemptcheck','game'));
+        // Define some strings.
+        $strreallydel  = addslashes(get_string('deleteattemptcheck', 'game'));
         $strtimeformat = get_string('strftimedatetime');
         $strreviewquestion = get_string('reviewresponse', 'quiz');
 
-        // Only print headers if not asked to download data
-        if (!$download = optional_param('download', NULL)) {
-            $this->print_header_and_tabs($cm, $course, $game, $reportmode="overview");
+        // Only print headers if not asked to download data.
+        if (!$download = optional_param('download', null)) {
+            $this->print_header_and_tabs($cm, $course, $game, $reportmode = "overview");
         }
 
-        // Deal with actions
+        // Deal with actions.
         $action = optional_param('action', '', PARAM_ACTION);
 
-        switch($action) {
-            case 'delete': // Some attempts need to be deleted
+        switch ($action) {
+            case 'delete': // Some attempts need to be deleted.
                 $attemptids = optional_param('attemptid', array(), PARAM_INT);
 
-                foreach($attemptids as $attemptid) {
+                foreach ($attemptids as $attemptid) {
                     if ($attemptid && $todelete = get_record('game_attempts', 'id', $attemptid)) {
                         delete_records('game_attempts', 'id', $attemptid);
                         delete_records('game_queries', 'attemptid', $attemptid);
 
                         // Search game_attempts for other instances by this user.
-                        // If none, then delete record for this game, this user from game_grades
-                        // else recalculate best grade
+                        // If none, then delete record for this game, this user from game_grades.
+                        // else recalculate best grade.
 
                         $userid = $todelete->userid;
                         if (!record_exists('game_attempts', 'userid', $userid, 'gameid', $game->id)) {
-                            delete_records('game_grades', 'userid', $userid,'gameid', $game->id);
+                            delete_records('game_grades', 'userid', $userid, 'gameid', $game->id);
                         } else {
                             game_save_best_score( $game, $userid);
                         }
@@ -55,12 +70,14 @@ class game_report extends game_default_report {
             break;
         }
 
-        // Print information on the number of existing attempts
-        if (!$download) { //do not print notices when downloading		
+        // Print information on the number of existing attempts.
+        if (!$download) {
+            // Do not print notices when downloading.
             if ($attemptnum = count_records('game_attempts', 'gameid', $game->id)) {
                 $a = new stdClass;
                 $a->attemptnum = $attemptnum;
-                $a->studentnum = count_records_select('game_attempts', "gameid = '$game->id' AND preview = '0'", 'COUNT(DISTINCT userid)');
+                $a->studentnum = count_records_select('game_attempts',
+                    "gameid = '$game->id' AND preview = '0'", 'COUNT(DISTINCT userid)');
                 $a->studentstring = $course->students;
 
                 notify( get_string('numattempts', 'game', $a));
@@ -68,8 +85,8 @@ class game_report extends game_default_report {
         }
 
         $context = get_context_instance(CONTEXT_MODULE, $cm->id);
-        /// find out current groups mode
-        if ($groupmode = groupmode($course, $cm)) { // Groups are being used
+        // Find out current groups mode.
+        if ($groupmode = groupmode($course, $cm)) { // Groups are being used.
             if (!$download) {
                 $currentgroup = setup_and_print_groups($course, $groupmode, "report.php?id=$cm->id&amp;mode=overview");
             } else {
@@ -79,7 +96,7 @@ class game_report extends game_default_report {
             $currentgroup = get_and_set_current_group($course, $groupmode);
         }
 
-        // Set table options
+        // Set table options.
         $noattempts = optional_param('noattempts', 0, PARAM_INT);
         $detailedmarks = optional_param('detailedmarks', 0, PARAM_INT);
         $pagesize = optional_param('pagesize', 10, PARAM_INT);
@@ -88,24 +105,25 @@ class game_report extends game_default_report {
             $pagesize = 10;
         }
 
-        // Now check if asked download of data
+        // Now check if asked download of data.
         if ($download) {
-            $filename = clean_filename("$course->shortname ".format_string($game->name,true));
+            $filename = clean_filename("$course->shortname ".format_string($game->name, true));
             $sort = '';
         }
 
-        // Define table columns
+        // Define table columns.
         $tablecolumns = array('checkbox', 'picture', 'fullname', 'timestart', 'timefinish', 'duration');
-        $tableheaders = array(NULL, '', get_string('fullname'), get_string('startedon', 'game'), get_string('timecompleted','game'), get_string('attemptduration', 'game'));
+        $tableheaders = array(null, '', get_string('fullname'), get_string('startedon', 'game'),
+            get_string('timecompleted', 'game'), get_string('attemptduration', 'game'));
 
         if ($game->grade) {
             $tablecolumns[] = 'grade';
             $tableheaders[] = get_string('grade', 'game').'/'.$game->grade;
         }
 
-        if($detailedmarks) {
-            // we want to display marks for all questions
-            // Start by getting all questions
+        if ($detailedmarks) {
+            // We want to display marks for all questions.
+            // Start by getting all questions.
             $questionlist = game_questions_in_game( $game->questions);
             $questionids = explode(',', $questionlist);
             $sql = "SELECT q.*, i.score AS maxgrade, i.id AS instance".
@@ -114,18 +132,18 @@ class game_report extends game_default_report {
                     " WHERE i.gameid = '$game->id' AND q.id = i.questionid".
                     "   AND q.id IN ($questionlist)";
             if (!$questions = get_records_sql($sql)) {
-               print_error('No questions found');
+                print_error('No questions found');
             }
             $number = 1;
-            foreach($questionids as $key => $id) {
+            foreach ($questionids as $key => $id) {
                 if ($questions[$id]->length) {
-                    // Only print questions of non-zero length
+                    // Only print questions of non-zero length.
                     $tablecolumns[] = '$'.$id;
                     $tableheaders[] = '#'.$number;
                     $questions[$id]->number = $number;
                     $number += $questions[$id]->length;
                 } else {
-                    // get rid of zero length questions
+                    // Get rid of zero length questions.
                     unset($questions[$id]);
                     unset($questionids[$key]);
                 }
@@ -138,7 +156,7 @@ class game_report extends game_default_report {
         }
 
         if (!$download) {
-            // Set up the table
+            // Set up the table.
 
             $table = new flexible_table('mod-game-report-overview-report');
 
@@ -160,20 +178,20 @@ class game_report extends game_default_report {
             $table->set_attribute('id', 'attempts');
             $table->set_attribute('class', 'generaltable generalbox');
 
-            // Start working -- this is necessary as soon as the niceties are over
+            // Start working -- this is necessary as soon as the niceties are over.
             $table->setup();
-        } else if ($download =='ODS') {
+        } else if ($download == 'ODS') {
             require_once("$CFG->libdir/odslib.class.php");
 
             $filename .= ".ods";
-            // Creating a workbook
+            // Creating a workbook.
             $workbook = new MoodleODSWorkbook("-");
-            // Sending HTTP headers
+            // Sending HTTP headers.
             $workbook->send($filename);
-            // Creating the first worksheet
-            $sheettitle = get_string('reportoverview','game');
+            // Creating the first worksheet.
+            $sheettitle = get_string('reportoverview', 'game');
             $myxls =& $workbook->add_worksheet($sheettitle);
-            // format types
+            // Format types.
             $format =& $workbook->add_format();
             $format->set_bold(0);
             $formatbc =& $workbook->add_format();
@@ -193,18 +211,18 @@ class game_report extends game_default_report {
             $formatg->set_bold(1);
             $formatg->set_color('green');
             $formatg->set_align('center');
-            // Here starts workshhet headers
 
-            $headers = array(get_string('fullname'), 
-                    get_string('startedon', 'game'), 
-                    get_string('timecompleted', 'game'), 
+            // Here starts workshhet headers.
+            $headers = array(get_string('fullname'),
+                    get_string('startedon', 'game'),
+                    get_string('timecompleted', 'game'),
                     get_string('attemptduration', 'game')
                 );
 
             if ($game->grade) {
                 $headers[] = get_string('grade', 'game').'/'.$game->grade;
             }
-            if($detailedmarks) {
+            if ($detailedmarks) {
                 foreach ($questionids as $id) {
                     $headers[] = '#'.$questions[$id]->number;
                 }
@@ -214,22 +232,22 @@ class game_report extends game_default_report {
             }
             $colnum = 0;
             foreach ($headers as $item) {
-                $myxls->write(0,$colnum,$item,$formatbc);
+                $myxls->write(0, $colnum, $item, $formatbc);
                 $colnum++;
             }
-            $rownum=1;
-        } else if ($download =='Excel') {
+            $rownum = 1;
+        } else if ($download == 'Excel') {
             require_once("$CFG->libdir/excellib.class.php");
 
             $filename .= ".xls";
-            // Creating a workbook
+            // Creating a workbook.
             $workbook = new MoodleExcelWorkbook("-");
-            // Sending HTTP headers
+            // Sending HTTP headers.
             $workbook->send($filename);
-            // Creating the first worksheet
-            $sheettitle = get_string('reportoverview','game');
+            // Creating the first worksheet.
+            $sheettitle = get_string('reportoverview', 'game');
             $myxls =& $workbook->add_worksheet($sheettitle);
-            // format types
+            // Format types.
             $format =& $workbook->add_format();
             $format->set_bold(0);
             $formatbc =& $workbook->add_format();
@@ -249,14 +267,15 @@ class game_report extends game_default_report {
             $formatg->set_bold(1);
             $formatg->set_color('green');
             $formatg->set_align('center');
-            // Here starts workshhet headers
 
-            $headers = array(get_string('fullname'), get_string('startedon', 'game'), get_string('timecompleted', 'game'), get_string('attemptduration', 'game'));
+            // Here starts workshhet headers.
+            $headers = array(get_string('fullname'), get_string('startedon', 'game'),
+                get_string('timecompleted', 'game'), get_string('attemptduration', 'game'));
 
             if ($game->grade) {
                 $headers[] = get_string('grade', 'game').'/'.$game->grade;
             }
-            if($detailedmarks) {
+            if ($detailedmarks) {
                 foreach ($questionids as $id) {
                     $headers[] = '#'.$questions[$id]->number;
                 }
@@ -266,11 +285,11 @@ class game_report extends game_default_report {
             }
             $colnum = 0;
             foreach ($headers as $item) {
-                $myxls->write(0,$colnum,$item,$formatbc);
+                $myxls->write(0, $colnum, $item, $formatbc);
                 $colnum++;
             }
-            $rownum=1;
-        } else if ($download=='CSV') {
+            $rownum = 1;
+        } else if ($download == 'CSV') {
             $filename .= ".txt";
 
             header("Content-Type: application/download\n");
@@ -279,12 +298,13 @@ class game_report extends game_default_report {
             header("Cache-Control: must-revalidate,post-check=0,pre-check=0");
             header("Pragma: public");
 
-            $headers = get_string('fullname')."\t".get_string('startedon', 'game')."\t".get_string('timecompleted', 'game')."\t".get_string('attemptduration', 'game');
+            $headers = get_string('fullname')."\t".get_string('startedon', 'game').
+                "\t".get_string('timecompleted', 'game')."\t".get_string('attemptduration', 'game');
 
             if ($game->grade) {
                 $headers .= "\t".get_string('grade', 'game')."/".$game->grade;
             }
-            if($detailedmarks) {
+            if ($detailedmarks) {
                 foreach ($questionids as $id) {
                     $headers .= "\t#".$questions[$id]->number;
                 }
@@ -297,48 +317,54 @@ class game_report extends game_default_report {
 
         $contextlists = get_related_contexts_string( get_context_instance( CONTEXT_COURSE, $course->id));
 
-        // Construct the SQL
+        // Construct the SQL.
         $select = 'SELECT qa.id,'.sql_concat('u.id', '\'#\'', $db->IfNull('qa.attempt', '0')).' AS uniqueid, '.
             'qa.id as attemptuniqueid, qa.id AS attempt, u.id AS userid, u.firstname, u.lastname, u.picture, '.
-//            'qa.uniqueid as attemptuniqueid, qa.id AS attempt, u.id AS userid, u.firstname, u.lastname, u.picture, '.
             'qa.score, qa.timefinish, qa.timestart, qa.timefinish - qa.timestart AS duration ';
-        if ($course->id != SITEID) { // this is too complicated, so just do it for each of the four cases.
+        if ($course->id != SITEID) {
+            // This is too complicated, so just do it for each of the four cases.
             if (!empty($currentgroup) && empty($noattempts)) {
-                // we want a particular group and we only want to see students WITH attempts.
+                // We want a particular group and we only want to see students WITH attempts.
                 // So join on groups_members and do an inner join on attempts.
                 $from  = 'FROM {user} u JOIN {role_assignments} ra ON ra.userid = u.id '.
                     groups_members_join_sql().
                     'JOIN {game_attempts} qa ON u.id = qa.userid AND qa.gameid = '.$game->id;
-                $where = ' WHERE ra.contextid ' . $contextlists . ' AND '. groups_members_where_sql($currentgroup) .' AND qa.preview = 0';
+                $where = ' WHERE ra.contextid ' . $contextlists .
+                        ' AND '. groups_members_where_sql($currentgroup) .' AND qa.preview = 0';
             } else if (!empty($currentgroup) && !empty($noattempts)) {
-                // We want a particular group and we want to do something funky with attempts
+                // We want a particular group and we want to do something funky with attempts.
                 // So join on groups_members and left join on attempts...
                 $from  = 'FROM {user} u JOIN {role_assignments} ra ON ra.userid = u.id '.
                     groups_members_join_sql().
                     'LEFT JOIN {game_attempts} qa ON u.id = qa.userid AND qa.gameid = '.$game->id;
                 $where = ' WHERE ra.contextid ' .$contextlists . ' AND '.groups_members_where_sql($currentgroup);
                 if ($noattempts == 1) {
-                    // noattempts = 1 means only no attempts, so make the left join ask for only records where the right is null (no attempts)
-                    $where .= ' AND qa.userid IS NULL'; // show ONLY no attempts;
+                    // Noattempts = 1 means only no attempts, so make the left join ask.
+                    // For only records where the right is null (no attempts).
+                    $where .= ' AND qa.userid IS NULL'; // Show ONLY no attempts.
                 } else {
                     // We are including attempts, so exclude previews.
                     $where .= ' AND qa.preview = 0';
                 }
             } else if (empty($currentgroup)) {
-                // We don't care about group, and we to do something funky with attempts
-                // So do a left join on attempts
-                $from  = 'FROM {user} u JOIN {role_assignments} ra ON ra.userid = u.id LEFT JOIN {game_attempts} qa ON u.id = qa.userid AND qa.gameid = '.$game->id;
+                // We don't care about group, and we to do something funky with attempts.
+                // So do a left join on attempts.
+                $from  = 'FROM {user} u JOIN {role_assignments} ra ON ra.userid = u.id '.
+                    ' LEFT JOIN {game_attempts} qa ON u.id = qa.userid AND qa.gameid = '.$game->id;
                 $where = " WHERE ra.contextid $contextlists";
                 if (empty($noattempts)) {
-                    $where .= ' AND qa.userid IS NOT NULL AND qa.preview = 0'; // show ONLY students with attempts;
+                    // Show ONLY students with attempts.
+                    $where .= ' AND qa.userid IS NOT NULL AND qa.preview = 0';
                 } else if ($noattempts == 1) {
-                    // noattempts = 1 means only no attempts, so make the left join ask for only records where the right is null (no attempts)
-                    $where .= ' AND qa.userid IS NULL'; // show ONLY students without attempts;
+                    // The noattempts = 1 means only no attempts,.
+                    // So make the left join ask for only records where the right is null (no attempts).
+                    // Show ONLY students without attempts.
+                    $where .= ' AND qa.userid IS NULL';
                 } else if ($noattempts == 3) {
-                    // we want all attempts
+                    // We want all attempts.
                     $from  = 'FROM {user} u JOIN {game_attempts} qa ON u.id = qa.userid ';
                     $where = ' WHERE qa.gameid = '.$game->id.' AND qa.preview = 0';
-                } // noattempts = 2 means we want all students, with or without attempts
+                } // The noattempts = 2 means we want all students, with or without attempts.
             }
             $countsql = 'SELECT COUNT(DISTINCT('.sql_concat('u.id', '\'#\'', $db->IfNull('qa.attempt', '0')).')) '.$from.$where;
         } else {
@@ -349,36 +375,35 @@ class game_report extends game_default_report {
             }
         }
         if (!$download) {
-            // Add extra limits due to initials bar
-            if($table->get_sql_where()) {
+            // Add extra limits due to initials bar.
+            if ($table->get_sql_where()) {
                 $where .= ' AND '.$table->get_sql_where();
             }
 
-            // Count the records NOW, before funky question grade sorting messes up $from
+            // Count the records NOW, before funky question grade sorting messes up $from.
             if (!empty($countsql)) {
                 $totalinitials = count_records_sql($countsql);
                 if ($table->get_sql_where()) {
                     $countsql .= ' AND '.$table->get_sql_where();
                 }
                 $total  = count_records_sql($countsql);
-
             }
 
-            // Add extra limits due to sorting by question grade
-            if($sort = $table->get_sql_sort()) {
+            // Add extra limits due to sorting by question grade.
+            if ($sort = $table->get_sql_sort()) {
                 $sortparts    = explode(',', $sort);
                 $newsort      = array();
                 $questionsort = false;
-                foreach($sortparts as $sortpart) {
+                foreach ($sortparts as $sortpart) {
                     $sortpart = trim($sortpart);
-                    if(substr($sortpart, 0, 1) == '$') {
-                        if(!$questionsort) {
+                    if (substr($sortpart, 0, 1) == '$') {
+                        if (!$questionsort) {
                             $qid          = intval(substr($sortpart, 1));
                             $select .= ', grade ';
                             $from        .= ' LEFT JOIN {question_sessions} qns ON qns.attemptid = qa.id '.
                                                 'LEFT JOIN {question_states} qs ON qs.id = qns.newgraded ';
                             $where       .= ' AND ('.sql_isnull('qns.questionid').' OR qns.questionid = '.$qid.')';
-                            $newsort[]    = 'grade '.(strpos($sortpart, 'ASC')? 'ASC' : 'DESC');
+                            $newsort[]    = 'grade '.(strpos($sortpart, 'ASC') ? 'ASC' : 'DESC');
                             $questionsort = true;
                         }
                     } else {
@@ -386,14 +411,13 @@ class game_report extends game_default_report {
                     }
                 }
 
-                // Reconstruct the sort string
+                // Reconstruct the sort string.
                 $sort = ' ORDER BY '.implode(', ', $newsort);
             }
 
-            // Fix some wired sorting
+            // Fix some wired sorting.
             if (empty($sort)) {
-                //$sort = ' ORDER BY uniqueid';
-				$sort = ' ORDER BY qa.id';
+                $sort = ' ORDER BY qa.id';
             }
 
             $table->pagesize($pagesize, $total);
@@ -402,82 +426,98 @@ class game_report extends game_default_report {
         // If there is feedback, include it in the query.
         if ($hasfeedback) {
             $select .= ', qf.feedbacktext ';
-            $from .= " JOIN {game_feedback} AS qf ON " .
+            $from .= " JOIN {game_feedback} qf ON " .
                     "qf.gameid = $game->id AND qf.mingrade <= qa.score * $game->grade  AND qa.score * $game->grade < qf.maxgrade";
         }
 
-        // Fetch the attempts
-        if (!empty($from)) { // if we're in the site course and displaying no attempts, it makes no sense to do the query.
+        // Fetch the attempts.
+        if (!empty($from)) {
+            // If we're in the site course and displaying no attempts, it makes no sense to do the query.
             if (!$download) {
                 $attempts = get_records_sql($select.$from.$where.$sort,
-                                        $table->get_page_start(), $table->get_page_size());
+                    $table->get_page_start(), $table->get_page_size());
             } else {
                 $attempts = get_records_sql($select.$from.$where.$sort);
             }
         } else {
             $attempts = array();
         }
-		
-
-        // Build table rows
 
+        // Build table rows.
         if (!$download) {
-            $table->initialbars($totalinitials>20);
+            $table->initialbars($totalinitials > 20);
         }
-        if(!empty($attempts) || !empty($noattempts)) {
+        if (!empty($attempts) || !empty($noattempts)) {
             if ($attempts) {
                 foreach ($attempts as $attempt) {
-
                     $picture = print_user_picture($attempt->userid, $course->id, $attempt->picture, false, true);
-
-                    // uncomment the commented lines below if you are choosing to show unenrolled users and
-                    // have uncommented the corresponding lines earlier in this script
-                    //if (in_array($attempt->userid, $unenrolledusers)) {
-                    //    $userlink = '<a class="dimmed" href="'.$CFG->wwwroot.'/user/view.php?id='.$attempt->userid.'&amp;course='.$course->id.'">'.fullname($attempt).'</a>';
-                    //}
-                    //else {
-                        $userlink = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$attempt->userid.'&amp;course='.$course->id.'">'.fullname($attempt).'</a>';
-                    //}
+                    /* Uncomment the commented lines below if you are choosing to show unenrolled users and
+                     * have uncommented the corresponding lines earlier in this script
+                     * if (in_array($attempt->userid, $unenrolledusers)) {
+                     *    $userlink = '<a class="dimmed" href="'.$CFG->wwwroot.
+                     *       '/user/view.php?id='.$attempt->userid.'&amp;course='.$course->id.'">'.fullname($attempt).'</a>';
+                     *}
+                     *else {
+                     *   $userlink = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.
+                     *      $attempt->userid.'&amp;course='.$course->id.'">'.fullname($attempt).'</a>';
+                     *}
+                     */
                     if (!$download) {
                         $row = array(
                                 '<input type="checkbox" name="attemptid[]" value="'.$attempt->attempt.'" />',
                                 $picture,
                                 $userlink,
-                                empty($attempt->attempt) ? '-' : '<a href="review.php?q='.$game->id.'&amp;attempt='.$attempt->attempt.'">'.userdate($attempt->timestart, $strtimeformat).'</a>',
-                                empty($attempt->timefinish) ? '-' : '<a href="review.php?q='.$game->id.'&amp;attempt='.$attempt->attempt.'">'.userdate($attempt->timefinish, $strtimeformat).'</a>',
-                                empty($attempt->attempt) ? '-' : (empty($attempt->timefinish) ? get_string('unfinished', 'game') : format_time($attempt->duration))
+                                empty($attempt->attempt) ? '-' : '<a href="review.php?q='.
+                                    $game->id.'&amp;attempt='.$attempt->attempt.'">'.
+                                    userdate($attempt->timestart, $strtimeformat).'</a>',
+                                empty($attempt->timefinish) ? '-' : '<a href="review.php?q='.
+                                    $game->id.'&amp;attempt='.$attempt->attempt.'">'.
+                                    userdate($attempt->timefinish, $strtimeformat).'</a>',
+                                empty($attempt->attempt) ? '-' : (
+                                    empty($attempt->timefinish) ? get_string('unfinished', 'game') : format_time(
+                                    $attempt->duration))
                         );
                     } else {
                         $row = array(fullname($attempt),
                                 empty($attempt->attempt) ? '-' : userdate($attempt->timestart, $strtimeformat),
                                 empty($attempt->timefinish) ? '-' : userdate($attempt->timefinish, $strtimeformat),
-                                empty($attempt->attempt) ? '-' : (empty($attempt->timefinish) ? get_string('unfinished', 'game') : format_time($attempt->duration))
+                                empty($attempt->attempt) ? '-' : (
+                                    empty($attempt->timefinish) ? get_string(
+                                    'unfinished', 'game') : format_time($attempt->duration))
                         );
                     }
 
                     if ($game->grade) {
                         if (!$download) {
-                            $row[] = $attempt->score === NULL ? '-' : '<a href="review.php?q='.$game->id.'&amp;attempt='.$attempt->attempt.'">'.round($attempt->score * $game->grade,$game->decimalpoints).'</a>';
+                            $row[] = $attempt->score === null ? '-' : '<a href="review.php?q='.
+                                $game->id.'&amp;attempt='.$attempt->attempt.'">'.
+                                round($attempt->score * $game->grade, $game->decimalpoints).'</a>';
                         } else {
-                            $row[] = $attempt->score === NULL ? '-' : round($attempt->score * $game->grade,$game->decimalpoints);
+                            $row[] = $attempt->score === null ? '-' : round($attempt->score * $game->grade, $game->decimalpoints);
                         }
                     }
-                    if($detailedmarks) {
-                        if(empty($attempt->attempt)) {
-                            foreach($questionids as $questionid) {
+                    if ($detailedmarks) {
+                        if (empty($attempt->attempt)) {
+                            foreach ($questionids as $questionid) {
                                 $row[] = '-';
                             }
                         } else {
-                            foreach($questionids as $questionid) {
-                                if ($gradedstateid = get_field('question_sessions', 'newgraded', 'attemptid', $attempt->attemptuniqueid, 'questionid', $questionid)) {
-                                    $grade = round(get_field('question_states', 'grade', 'id', $gradedstateid), $game->decimalpoints);
+                            foreach ($questionids as $questionid) {
+                                if ($gradedstateid = get_field('question_sessions', 'newgraded',
+                                    'attemptid', $attempt->attemptuniqueid, 'questionid', $questionid)) {
+                                    $grade = round(get_field('question_states', 'grade', 'id',
+                                        $gradedstateid), $game->decimalpoints);
                                 } else {
                                     $grade = '--';
                                 }
                                 if (!$download) {
-                                    $row[] = link_to_popup_window ('/mod/game/reviewquestion.php?state='.$gradedstateid.'&amp;number='.$questions[$questionid]->number, 'reviewquestion', $grade, 450, 650, $strreviewquestion, 'none', true);
+                                    $row[] = link_to_popup_window (
+                                        '/mod/game/reviewquestion.php?state='.
+                                        $gradedstateid.'&amp;number='.
+                                        $questions[$questionid]->number, 'reviewquestion', $grade,
+                                        450, 650, $strreviewquestion, 'none', true);
                                 } else {
-                                $row[] = $grade;
+                                    $row[] = $grade;
                                 }
                             }
                         }
@@ -493,43 +533,50 @@ class game_report extends game_default_report {
                         $table->add_data($row);
                     } else if ($download == 'Excel' or $download == 'ODS') {
                         $colnum = 0;
-                        foreach($row as $item){
-                            $myxls->write($rownum,$colnum,$item,$format);
+                        foreach ($row as $item) {
+                            $myxls->write($rownum, $colnum, $item, $format);
                             $colnum++;
                         }
                         $rownum++;
-                    } else if ($download=='CSV') {
+                    } else if ($download == 'CSV') {
                         $text = implode("\t", $row);
                         echo $text." \n";
                     }
                 }
             }
             if (!$download) {
-                // Start form
+                // Start form.
                 echo '<div id="tablecontainer">';
-                echo '<form id="attemptsform" method="post" action="report.php" onsubmit="var menu = document.getElementById(\'menuaction\'); return (menu.options[menu.selectedIndex].value == \'delete\' ? confirm(\''.$strreallydel.'\') : true);">';
+                echo '<form id="attemptsform" method="post" action="report.php" '.
+                    'onsubmit="var menu = document.getElementById(\'menuaction\'); '.
+                    'return (menu.options[menu.selectedIndex].value == \'delete\' ? confirm(\''.$strreallydel.'\') : true);">';
                 echo '<div>';
                 echo '<input type="hidden" name="id" value="'.$cm->id.'" />';
                 echo '<input type="hidden" name="mode" value="overview" />';
 
-                // Print table
+                // Print table.
                 $table->print_html();
 
-                // Print "Select all" etc.
+                // Print "Select all" etc..
                 if (!empty($attempts)) {
                     echo '<table id="commands">';
                     echo '<tr><td>';
-                    echo '<a href="javascript:select_all_in(\'DIV\',null,\'tablecontainer\');">'.get_string('selectall', 'game').'</a> / ';
-                    echo '<a href="javascript:deselect_all_in(\'DIV\',null,\'tablecontainer\');">'.get_string('selectnone', 'game').'</a> ';
+                    echo '<a href="javascript:select_all_in(\'DIV\',null,\'tablecontainer\');">'.
+                        get_string('selectall', 'game').'</a> / ';
+                    echo '<a href="javascript:deselect_all_in(\'DIV\',null,\'tablecontainer\');">'.
+                        get_string('selectnone', 'game').'</a> ';
                     echo '&nbsp;&nbsp;';
                     $options = array('delete' => get_string('delete'));
-                    echo choose_from_menu($options, 'action', '', get_string('withselected', 'game'), 'if(this.selectedIndex > 0) submitFormById(\'attemptsform\');', '', true);
+                    echo choose_from_menu($options, 'action', '', get_string('withselected', 'game'),
+                        'if(this.selectedIndex > 0) submitFormById(\'attemptsform\');', '', true);
                     echo '<noscript id="noscriptmenuaction" style="display: inline;"><div>';
                     echo '<input type="submit" value="'.get_string('go').'" /></div></noscript>';
-                    echo '<script type="text/javascript">'."\n<!--\n".'document.getElementById("noscriptmenuaction").style.display = "none";'."\n-->\n".'</script>';
+                    echo '<script type="text/javascript">'."\n<!--\n".
+                        'document.getElementById("noscriptmenuaction").style.display = "none";'
+                        ."\n-->\n".'</script>';
                     echo '</td></tr></table>';
                 }
-                // Close form
+                // Close form.
                 echo '</div>';
                 echo '</form></div>';
 
@@ -545,7 +592,7 @@ class game_report extends game_default_report {
                     $options['detailedmarks'] = $detailedmarks;
                     echo '<td>';
                     $options["download"] = "ODS";
-                    print_single_button("report.php", $options, get_string("downloadods", 'game'));	///check bdaloukas
+                    print_single_button("report.php", $options, get_string("downloadods", 'game'));
                     echo "</td>\n";
                     echo '<td>';
                     $options["download"] = "Excel";
@@ -572,7 +619,7 @@ class game_report extends game_default_report {
                 $table->print_html();
             }
         }
-        // Print display options
+        // Print display options.
         echo '<div class="controls">';
         echo '<form id="options" action="report.php" method="get">';
         echo '<div>';
@@ -589,16 +636,19 @@ class game_report extends game_default_report {
         echo '</tr>';
         echo '<tr align="left">';
         echo '<td colspan="2">';
-        $options = array(0 => get_string('attemptsonly','game', $course->students));
+        $options = array(0 => get_string('attemptsonly', 'game', $course->students));
         if ($course->id != SITEID) {
             $options[1] = get_string('noattemptsonly', 'game', $course->students);
-            $options[2] = get_string('allstudents','game', $course->students);
-            $options[3] = get_string('allattempts','game');
+            $options[2] = get_string('allstudents', 'game', $course->students);
+            $options[3] = get_string('allattempts', 'game');
         }
-        choose_from_menu($options,'noattempts',$noattempts,'');
+        choose_from_menu($options, 'noattempts', $noattempts, '');
         echo '</td></tr>';
         echo '<tr align="left">';
-        echo '<td colspan="2"><input type="checkbox" id="checkdetailedmarks" name="detailedmarks" '.($detailedmarks?'checked="checked" ':'').'value="1" /> <label for="checkdetailedmarks">'.get_string('showdetailedmarks', 'game').'</label> ';
+        echo '<td colspan="2"><input type="checkbox" id="checkdetailedmarks" name="detailedmarks" '.
+            ($detailedmarks ? 'checked="checked" ' : '').
+            'value="1" /> <label for="checkdetailedmarks">'.
+            get_string('showdetailedmarks', 'game').'</label> ';
         echo '</td></tr>';
         echo '<tr><td colspan="2" align="center">';
         echo '<input type="submit" value="'.get_string('go').'" />';
@@ -611,5 +661,3 @@ class game_report extends game_default_report {
         return true;
     }
 }
-
-?>
diff --git a/snakes/createboard.php b/snakes/createboard.php
index 7cabd7c..a0ac7e7 100755
--- a/snakes/createboard.php
+++ b/snakes/createboard.php
@@ -1,26 +1,30 @@
-<?php  // $Id: createboard.php,v 1.5 2012/07/25 11:16:07 bdaloukas Exp $
-// This file creates a board for "Snakes and Ladders"
-/*
-require( "../../../config.php");
-
-$im=game_createsnakesboard( $_GET[ 'file'], $_GET[ 'colsx'], $_GET[ 'colsy'], $_GET[ 'ofstop'], $_GET[ 'ofsbottom'], $_GET[ 'ofsright'], $_GET[ 'ofsleft'], $_GET[ 'aboard']);
-
-header('Content-type: image/jpg');
-imagejpeg($im);
-imagedestroy($im);
-*/
-
-function game_createsnakesboard($imageasstring, $colsx, $colsy, $ofstop, $ofsbottom, $ofsright, $ofsleft, $board, $setwidth, $setheight)
-{
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+// This file creates a board for "Snakes and Ladders".
+function game_createsnakesboard($imageasstring, $colsx, $colsy, $ofstop, $ofsbottom,
+        $ofsright, $ofsleft, $board, $setwidth, $setheight) {
     global $CFG;
 
     $dir = $CFG->dirroot.'/mod/game/snakes/1';
 
     $im = imagecreatefromstring($imageasstring);
 
-    //check if need resize
-    if( $setwidth >0 or $setheight > 0)
-    {
+    // Check if need resize.
+    if ( $setwidth > 0 or $setheight > 0) {
         $source = $im;
         $width = imagesx($source);
         $height = imagesy($source);
@@ -39,36 +43,31 @@ function game_createsnakesboard($imageasstring, $colsx, $colsy, $ofstop, $ofsbot
     $cy = imagesy($im) - $ofstop - $ofsbottom;
 
     $color = 0xFF0000;
-    for( $i=0; $i <= $colsx; $i++)
-    {
-        imageline( $im, $ofsleft+$i * $cx / $colsx, $ofstop, $ofsleft+$i * $cx / $colsx, $cy+$ofstop, $color);
+    for ($i = 0; $i <= $colsx; $i++) {
+        imageline( $im, $ofsleft + $i * $cx / $colsx, $ofstop, $ofsleft + $i * $cx / $colsx, $cy + $ofstop, $color);
     }
 
-    for( $i=0; $i <= $colsy; $i++)
-    {
-        imageline( $im, $ofsleft, $ofstop+$i * $cy / $colsy, $cx+$ofsleft, $ofstop+$i * $cy / $colsy, $color);
+    for ($i = 0; $i <= $colsy; $i++) {
+        imageline( $im, $ofsleft, $ofstop + $i * $cy / $colsy, $cx + $ofsleft, $ofstop + $i * $cy / $colsy, $color);
     }
 
-    $filenamenumbers=$dir.'/numbers.png';
-    $img_numbers = imageCreateFrompng( $filenamenumbers);
-    $size_numbers = getimagesize ($filenamenumbers);
-
-    for( $iy=0; $iy < $colsy; $iy++)
-    {
-        if( $iy % 2 == 0){
-            $inc=false;
-            $num = ($colsy-$iy)*$colsy;
-        }else
-        {
-            $inc=true;
-            $num = ($colsy-$iy)*$colsy-($colsy-1);
-        } 
-        $ypos = $iy * $cy / $colsy+$ofstop;
-        for( $ix=0; $ix < $colsx; $ix++)
-        {
+    $filenamenumbers = $dir.'/numbers.png';
+    $imgnumbers = imagecreatefrompng( $filenamenumbers);
+    $sizenumbers = getimagesize ($filenamenumbers);
+
+    for ($iy = 0; $iy < $colsy; $iy++) {
+        if ($iy % 2 == 0) {
+            $inc = false;
+            $num = ($colsy - $iy) * $colsy;
+        } else {
+            $inc = true;
+            $num = ($colsy - $iy) * $colsy - ($colsy - 1);
+        }
+        $ypos = $iy * $cy / $colsy + $ofstop;
+        for ($ix = 0; $ix < $colsx; $ix++) {
             $xpos = $ix * $cx / $colsx + $ofsleft;
-            shownumber( $im, $img_numbers, $num, $xpos, $ypos, $cx/4, $cy/4, $size_numbers);
-            $num = ($inc ? $num+1 : $num-1);
+            shownumber( $im, $imgnumbers, $num, $xpos, $ypos, $cx / 4, $cy / 4, $sizenumbers);
+            $num = ($inc ? $num + 1 : $num - 1);
         }
     }
 
@@ -77,36 +76,33 @@ function game_createsnakesboard($imageasstring, $colsx, $colsy, $ofstop, $ofsbot
     return $im;
 }
 
-function computexy( $pos, &$x, &$y, $colsx, $colsy)
-{
+function computexy( $pos, &$x, &$y, $colsx, $colsy) {
     $x = ($pos - 1) % $colsx;
-    $y = ($colsy-1) - floor( ($pos - 1) / $colsy);
-    if($y % 2 == 0)
-        $x = ($colsx-1) - $x;
+    $y = ($colsy - 1) - floor( ($pos - 1) / $colsy);
+    if ($y % 2 == 0) {
+        $x = ($colsx - 1) - $x;
+    }
 }
 
-function makeboard( $im, $dir, $cx, $cy, $board, $colsx, $colsy, $ofsleft, $ofstop)
-{
+function makeboard( $im, $dir, $cx, $cy, $board, $colsx, $colsy, $ofsleft, $ofstop) {
     $a = explode( ',', $board);
-    foreach( $a as $s)
-    {    
-        if( substr( $s,0,1) == 'L')
+    foreach ($a as $s) {
+        if (substr( $s, 0, 1) == 'L') {
             makeboardL( $im, $dir, $cx, $cy, substr( $s, 1), $colsx, $colsy, $ofsleft, $ofstop);
-        else
+        } else {
             makeboardS( $im, $dir, $cx, $cy, substr( $s, 1), $colsx, $colsy, $ofsleft, $ofstop);
+        }
     }
 }
 
-function makeboardL( $im, $dir, $cx, $cy, $s, $colsx, $colsy, $ofsleft, $ofstop)
-{
+function makeboardl( $im, $dir, $cx, $cy, $s, $colsx, $colsy, $ofsleft, $ofstop) {
     $pos = strpos( $s, '-');
     $from = substr( $s, 0, $pos);
-    $to = substr( $s, $pos+1);
+    $to = substr( $s, $pos + 1);
 
     computexy( $from, $startx, $starty, $colsx, $colsy);
     computexy( $to, $x2, $y2, $colsx, $colsy);
-    if( ($x2 < $startx) and ($y2 < $starty))
-    {
+    if (($x2 < $startx) and ($y2 < $starty)) {
         $temp = $x2; $x2 = $startx; $startx = $temp;
         $temp = $y2; $y2 = $starty; $starty = $temp;
     }
@@ -115,201 +111,193 @@ function makeboardL( $im, $dir, $cx, $cy, $s, $colsx, $colsy, $ofsleft, $ofstop)
 
     $letter = ( $movex * $movey < 0 ? 'b' : 'a');
 
-    $_startx = $startx; $_movex=$movex; $_starty = $starty; $_movey=$movey;
-
-            if( $movex < 0)
-            {
-                $startx += $movex;
-                $movex = -$movex;
-            } 
-            if( $movey < 0)
-            {
-                $starty += $movey;
-                $movey = -$movey;
-            }
+    $oldstartx = $startx; $oldmovex = $movex; $oldstarty = $starty; $oldmovey = $movey;
+
+    if ($movex < 0) {
+        $startx += $movex;
+        $movex = -$movex;
+    }
+    if ($movey < 0) {
+        $starty += $movey;
+        $movey = -$movey;
+    }
     $stamp = 0;
-    if( $letter == 'b'){
+    if ($letter == 'b') {
         $file = $dir.'/l'.$letter.$movey.$movex.'.png';
-        if( file_exists( $file)){
+        if (file_exists( $file)) {
             $stamp = game_imagecreatefrompng( $file);
-        }else
-        {
+        } else {
             $file = $dir.'/la'.$movey.$movex.'.png';
 
             $source = game_imagecreatefrompng( $file);
-            if( $source != 0)
+            if ( $source != 0) {
                 $stamp = imagerotate($source, 90, 0);
+            }
         }
-    }else
-    {
+    } else {
         $file = $dir.'/la'.$movex.$movey.'.png';
         $stamp = game_imagecreatefrompng( $file);
     }
-    
-    $dst_x = $startx*$cx/$colsx;
-    $dst_y = $starty*$cy/$colsy;
-    $dst_w = ($movex+1) * $cx / $colsx;
-    $dst_h = ($movey+1) * $cy / $colsy;
-
-    if( $stamp == 0)
-    {
-        game_printladder( $im, $file, $dst_x+$ofsleft, $dst_y+$ofstop, $dst_w, $dst_h, $cx/$colsx, $cy/$colsy);
-    }else
-    {
-        imagecopyresampled( $im, $stamp, $ofsleft+$dst_x, $ofstop+$dst_y, 0, 0, $dst_w, $dst_h, 100*$movex+100, 100*$movey+100);
+
+    $dstx = $startx * $cx / $colsx;
+    $dsty = $starty * $cy / $colsy;
+    $dstw = ($movex + 1) * $cx / $colsx;
+    $dsth = ($movey + 1) * $cy / $colsy;
+
+    if ($stamp == 0) {
+        game_printladder( $im, $file, $dstx + $ofsleft, $dsty + $ofstop, $dstw, $dsth, $cx / $colsx, $cy / $colsy);
+    } else {
+        imagecopyresampled( $im, $stamp, $ofsleft + $dstx, $ofstop + $dsty, 0, 0, $dstw, $dsth,
+            100 * $movex + 100, 100 * $movey + 100);
     }
 }
 
-function makeboardS( $im, $dir, $cx, $cy, $s, $colsx, $colsy, $ofsleft, $ofstop)
-{
+function makeboards( $im, $dir, $cx, $cy, $s, $colsx, $colsy, $ofsleft, $ofstop) {
     $pos = strpos( $s, '-');
     $from = substr( $s, 0, $pos);
-    $to = substr( $s, $pos+1);
+    $to = substr( $s, $pos + 1);
 
     computexy( $from, $startx, $starty, $colsx, $colsy);
     computexy( $to, $x2, $y2, $colsx, $colsy);
-    $swap=0;
-    if( ($x2 < $startx) and ($y2 < $starty))
-    {
+    $swap = 0;
+    if (($x2 < $startx) and ($y2 < $starty)) {
         $temp = $x2; $x2 = $startx; $startx = $temp;
         $temp = $y2; $y2 = $starty; $starty = $temp;
-        $swap=1;
+        $swap = 1;
     }
     $movex = $x2 - $startx;
     $movey = $y2 - $starty;
 
-    //a*d
-    //***
-    //b*c
+    /*  a*d
+     *
+     *  b*c
+     */
     $stamp = $rotate = 0;
-    if( $movex >= 0 and $movey < 0){
+    if ($movex >= 0 and $movey < 0) {
         $letter = 'b';
         $file = $dir.'/sa'.$movey.$movex.'.png';
         $source = game_imagecreatefrompng( $file);
-        if( $source != 0)
-        {
+        if ($source != 0) {
             $stamp = imagerotate($source, 270, 0);
             $starty += $movey; $movey = -$movey;
-        }else
+        } else {
             $rotate = 270;
-    }else if( $movex < 0 and $movey < 0){
+        }
+    } else if ($movex < 0 and $movey < 0) {
         $letter = 'c';
         $file = $dir.'/sa'.$movey.$movex.'.png';
         $source = game_imagecreatefrompng( $file);
-        if( $source != 0)
-        {
+        if ($source != 0) {
             $stamp = imagerotate($source, 180, 0);
             $startx += $movex; $movex = -$movex;
             $starty += $movey; $movey = -$movey;
-        }else
+        } else {
             $rotate = 180;
-    }else if( ($movex < 0) and ($movey >= 0)){
+        }
+    } else if (($movex < 0) and ($movey >= 0)) {
         $letter = 'd';
         $file = $dir.'/sa'.$movey.$movex.'.png';
         $source = game_imagecreatefrompng( $file);
-        if( $source != 0)
-        {
+        if ($source != 0) {
             $stamp = imagerotate($source, 270, 0);
             $startx += $movex; $movex = -$movex;
-        }else
-            $rotate=270;
-    }else
-    {
+        } else {
+            $rotate = 270;
+        }
+    } else {
         $file = $dir.'/sa'.$movex.$movey.'.png';
         $stamp = game_imagecreatefrompng( $file);
     }
 
-        if( ($swap != 0) and ($stamp == 0))
-        {
-            $temp = $x2; $x2 = $startx; $startx = $temp;
-            $temp = $y2; $y2 = $starty; $starty = $temp;
-            $movex = $x2 - $startx;
-            $movey = $y2 - $starty;
-        }
+    if (($swap != 0) and ($stamp == 0)) {
+        $temp = $x2; $x2 = $startx; $startx = $temp;
+        $temp = $y2; $y2 = $starty; $starty = $temp;
+        $movex = $x2 - $startx;
+        $movey = $y2 - $starty;
+    }
 
-    $dst_x = $startx*$cx/$colsx;
-    $dst_y = $starty*$cy/$colsy;
-    $dst_w = ($movex+1) * $cx / $colsx;
-    $dst_h = ($movey+1) * $cy / $colsy;
+    $dstx = $startx * $cx / $colsx;
+    $dsty = $starty * $cy / $colsy;
+    $dstw = ($movex + 1) * $cx / $colsx;
+    $dsth = ($movey + 1) * $cy / $colsy;
 
-    if( $stamp == 0)
-    {
-        game_printsnake( $im, $file, $dst_x+$ofsleft, $dst_y+$ofstop, $dst_w, $dst_h, $cx/$colsx, $cy/$colsy);
-    }else
-        imagecopyresampled( $im, $stamp, $dst_x+$ofsleft, $dst_y+$ofstop, 0, 0, $dst_w, $dst_h, 100*$movex+100, 100*$movey+100);
+    if ($stamp == 0) {
+        game_printsnake( $im, $file, $dstx + $ofsleft, $dsty + $ofstop, $dstw, $dsth, $cx / $colsx, $cy / $colsy);
+    } else {
+        imagecopyresampled( $im, $stamp, $dstx + $ofsleft, $dsty + $ofstop, 0, 0, $dstw, $dsth,
+            100 * $movex + 100, 100 * $movey + 100);
+    }
 }
 
-function game_imagecreatefrompng( $file){
-    if( file_exists( $file))
+function game_imagecreatefrompng( $file) {
+    if (file_exists( $file)) {
         return imagecreatefrompng( $file);
+    }
 
     return 0;
 }
 
-function shownumber( $img_handle, $img_numbers, $number, $x1 , $y1, $width, $height, $size_numbers){
-    if( $number < 10){
-        $width_number = $size_numbers[ 0] / 10;
-        $dstX = $x1 + $width / 10;
-        $dstY = $y1 + $height / 10;
-        $srcX = $number * $size_numbers[ 0] / 10;
-        $srcW = $size_numbers[ 0]/10;
-        $srcH = $size_numbers[ 1];
-        $dstW = $width / 10;
-        $dstH = $dstW * $srcH / $srcW;
-        imagecopyresampled( $img_handle, $img_numbers, $dstX, $dstY, $srcX, 0, $dstW, $dstH, $srcW, $srcH);
-    }else
-    {
+function shownumber( $imghandle, $imgnumbers, $number, $x1 , $y1, $width, $height, $sizenumbers) {
+    if ($number < 10) {
+        $widthnumber = $sizenumbers[ 0] / 10;
+        $dstx = $x1 + $width / 10;
+        $dsty = $y1 + $height / 10;
+        $srcx = $number * $sizenumbers[ 0] / 10;
+        $srcw = $sizenumbers[ 0] / 10;
+        $srch = $sizenumbers[ 1];
+        $dstw = $width / 10;
+        $dsth = $dstw * $srch / $srcw;
+        imagecopyresampled( $imghandle, $imgnumbers, $dstx, $dsty, $srcx, 0, $dstw, $dsth, $srcw, $srch);
+    } else {
         $number1 = floor( $number / 10);
         $number2 = $number % 10;
-        shownumber( $img_handle, $img_numbers, $number1, $x1-$width/20, $y1, $width, $height, $size_numbers);
-        shownumber( $img_handle, $img_numbers, $number2, $x1+$width/20, $y1, $width, $height, $size_numbers);
+        shownumber( $imghandle, $imgnumbers, $number1, $x1 - $width / 20, $y1, $width, $height, $sizenumbers);
+        shownumber( $imghandle, $imgnumbers, $number2, $x1 + $width / 20, $y1, $width, $height, $sizenumbers);
     }
 }
 
-function returnRotatedPoint($x,$y,$cx,$cy,$a)
-    {
-             // radius using distance formula
-            $r = sqrt(pow(($x-$cx),2)+pow(($y-$cy),2));
-            // initial angle in relation to center
-            $iA = rad2deg(atan2(($y-$cy),($x-$cx)));
+function returnrotatedpoint($x, $y, $cx, $cy, $a) {
+    // Radius using distance formula.
+    $r = sqrt(pow(($x - $cx), 2) + pow(($y - $cy), 2));
 
-            $nx = $r * cos(deg2rad($a + $iA));
-            $ny = $r * sin(deg2rad($a + $iA));
+    // Initial angle in relation to center.
+    $ia = rad2deg(atan2(($y - $cy), ($x - $cx)));
 
-    return array("x"=>$cx+$nx,"y"=>$cy+$ny);
-    }
+    $nx = $r * cos(deg2rad($a + $ia));
+    $ny = $r * sin(deg2rad($a + $ia));
 
-function game_printladder( $im, $file, $x, $y, $width, $height, $cellx, $celly)
-{
+    return array("x" => $cx + $nx, "y" => $cy + $ny);
+}
+
+function game_printladder( $im, $file, $x, $y, $width, $height, $cellx, $celly) {
     $color = imagecolorallocate($im, 0, 0, 255);
-    $x2 = $x+$width-$cellx/2;
-    $y2 = $y+$height-$celly/2;
-    $x1 = $x+$cellx/2;
-    $y1 = $y+$celly/2;
+    $x2 = $x + $width - $cellx / 2;
+    $y2 = $y + $height - $celly / 2;
+    $x1 = $x + $cellx / 2;
+    $y1 = $y + $celly / 2;
     imageline( $im, $x1, $y1, $x2, $y2, $color);
-    $r = sqrt(pow(($x2-$x1),2)+pow(($y2-$y1),2));
+    $r = sqrt(pow(($x2 - $x1), 2) + pow(($y2 - $y1), 2));
     $mul = 100 / $r;
-    $x1 = $x2 - ($x2-$x1) * $mul;
-    $y1 = $y2 - ($y2-$y1) * $mul;
+    $x1 = $x2 - ($x2 - $x1) * $mul;
+    $y1 = $y2 - ($y2 - $y1) * $mul;
     $a = returnRotatedPoint( $x1, $y1, $x2, $y2, 20);
     imageline( $im, $x2, $y2, $a[ 'x'], $a[ 'y'], $color);
     $a = returnRotatedPoint( $x1, $y1, $x2, $y2, -20);
     imageline( $im, $x2, $y2, $a[ 'x'], $a[ 'y'], $color);
 }
 
-function game_printsnake( $im, $file, $x, $y, $width, $height, $cellx, $celly)
-{
+function game_printsnake( $im, $file, $x, $y, $width, $height, $cellx, $celly) {
     $color = imagecolorallocate($im, 0, 255, 0);
-    $x2 = $x+$width-$cellx/2;
-    $y2 = $y+$height-$celly/2;
-    $x1 = $x+$cellx/2;
-    $y1 = $y+$celly/2;
+    $x2 = $x + $width - $cellx / 2;
+    $y2 = $y + $height - $celly / 2;
+    $x1 = $x + $cellx / 2;
+    $y1 = $y + $celly / 2;
     imageline( $im, $x1, $y1, $x2, $y2, $color);
-    
-    $r = sqrt(pow(($x2-$x1),2)+pow(($y2-$y1),2));
+
+    $r = sqrt(pow(($x2 - $x1), 2) + pow(($y2 - $y1), 2));
     $mul = 100 / $r;
-    $x2 = $x1 + ($x2-$x1) * $mul;
-    $y2 = $y1 + ($y2-$y1) * $mul;
+    $x2 = $x1 + ($x2 - $x1) * $mul;
+    $y2 = $y1 + ($y2 - $y1) * $mul;
     $a = returnRotatedPoint( $x1, $y1, $x2, $y2, 80);
     imageline( $im, $x1, $y1, $a[ 'x'], $a[ 'y'], $color);
     $a = returnRotatedPoint( $x1, $y1, $x2, $y2, -80);
diff --git a/snakes/play.php b/snakes/play.php
index 38d3953..e1f9879 100755
--- a/snakes/play.php
+++ b/snakes/play.php
@@ -1,439 +1,442 @@
-<?php  // $Id: play.php,v 1.26 2012/07/26 05:39:00 bdaloukas Exp $
-
-// This files plays the game "Snakes and Ladders"
-
-function game_snakes_continue( $id, $game, $attempt, $snakes, $context)
-{
-	if( $attempt != false and $snakes != false){
-		return game_snakes_play( $id, $game, $attempt, $snakes, $context);
-	}
-
-	if( $attempt === false){
-		$attempt = game_addattempt( $game);
-	}
-	
-	$newrec = new stdClass();
-	$newrec->id = $attempt->id;
-	$newrec->snakesdatabaseid = $game->param3;
-    if( $newrec->snakesdatabaseid == 0)
-        $newrec->snakesdatabaseid = 1;
-	$newrec->position = 1;
-	$newrec->queryid = 0;
-    $newrec->dice = rand( 1, 6);
-	if( !game_insert_record(  'game_snakes', $newrec)){
-		print_error( 'game_snakes_continue: error inserting in game_snakes');
-	}
-	
-	game_updateattempts( $game, $attempt, 0, 0);
-	
-	return game_snakes_play( $id, $game, $attempt, $newrec, $context);
-}
-
-function game_snakes_play( $id, $game, $attempt, $snakes, $context)
-{
-	global $CFG, $DB, $OUTPUT;
-	
-    $board = game_snakes_get_board( $game);
-    $showboard = false;
-
-	if( $snakes->position > $board->cols * $board->rows && $snakes->queryid <> 0){
-		$finish = true;
-	
-		if (! $cm = $DB->get_record('course_modules', array( 'id' => $id))) {
-			print_error("Course Module ID was incorrect id=$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=\"$CFG->wwwroot/course/view.php?id=$cm->course\">".get_string( 'finish', 'game').'</a> ';
-		
-		$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 = $DB->get_record( 'game_queries', array( 'id' => $snakes->queryid));
-		}
-		if( $game->toptext != ''){
-		    echo $game->toptext.'<br>';
-	    }
-	    $showboard = true;
-	}
-	
-	if( $showboard and $game->param8 == 0)
-		game_snakes_showquestion( $id, $game, $snakes, $query, $context);
-
-?>
-    <script language="javascript" event="onload" for="window">
-    <!--    
-    var retVal = new Array();
-    var elements = document.getElementsByTagName("*");
-    for(var i = 0;i < elements.length;i++){
-        if( elements[ i].type == 'text'){
-            elements[ i].focus();
-            break;
-        }
-    }
-    -->
-    </script>
-
-	<table>
-	<tr>
-		<td>
-
-<div id="board" STYLE="position:relative; left:0px;top:0px; width:<?php p($board->width); ?>px; height:<?php p($board->height); ?>px;">
-<img src="<?php echo $board->imagesrc; ?>"></img>
-</div>
-
-<?php
-
-
-if( $finish  == false){
-    game_snakes_showdice( $snakes, $board);
-}
-?>
-		</td>
-	</tr>
-	</table>
-<?php
-
-	if( $game->bottomtext != ''){
-		echo '<br>'.$game->bottomtext;
-	}
-	
-	if( $showboard and $game->param8 != 0)
-		game_snakes_showquestion( $id, $game, $snakes, $query, $context);	
-}
-
-function game_snakes_showdice( $snakes, $board)
-{
-	$pos = game_snakes_computeplayerposition( $snakes, $board);
-?>
-<div ID="player1" STYLE="position:relative; left:<?php p( $pos->x);?>px; top:<?php p( $pos->y);?>px;" >
-<img src="snakes/1/player1.png" alt="<?php print_string('snakes_player', 'game', ($snakes->position +1)); /*Accessibility. */ ?>" width="<?php echo $pos->width; ?>" height="<?php echo $pos->height; ?>"/>
-</div>
-
-	<div ID="dice" STYLE="position:relative; left:<?php p( $board->width + round($board->width/3));?>px;top:<?php p( -2*round($board->height/3));?>px; ">
-	<img src="snakes/1/dice<?php p($snakes->dice);?>.png" alt="<?php print_string('snakes_dice', 'game', $snakes->dice) ?>" />
-	</div>	
-<?php
-}
-
-function game_snakes_computeplayerposition( $snakes, $board)
-{
-	$x = ($snakes->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;
-	
-	$pos = new stdClass();
-	$pos->width = 22;
-	$pos->height = 22;
-	
-	$pos->ofsx = 0;
-	$pos->ofsy = $pos->height;
-	
-	switch( $board->direction){
-	case 1:
-		if( ($y % 2) == 1){
-			$x = $board->cols  - $x - 1;
-		}
-		$pos->x = $board->headerx + $x * $cellwidth + ($cellwidth - $pos->width)/2+ $pos->ofsx;
-		$pos->y = $board->footery + $y * $cellheight + ($cellheight - $pos->height)/2 + $pos->ofsy;
-		$pos->x = round( $pos->x);
-		$pos->y = round( -$pos->y);
-		break;
-	}
-		
-	return $pos;
-}
-
-function game_snakes_computenextquestion( $game, &$snakes, &$query)
-{
-	global $DB, $USER;
-	
-    //Retrieves CONST_GAME_TRIES_REPETITION words and select the one which is used fewer times
-	if( ($recs = game_questions_selectrandom( $game, 1, CONST_GAME_TRIES_REPETITION)) == false){
-		return false;
-	}
-
-    $glossaryid = 0;
-    $questionid = 0;
-    $min_num = 0;
-    $query = new stdClass();
-    foreach( $recs as $rec){
-        $a = array( 'gameid' => $game->id, 'userid' => $USER->id, 'questionid' => $rec->questionid, 'glossaryentryid' => $rec->glossaryentryid);
-        if(($rec2 = $DB->get_record('game_repetitions', $a, 'id,repetitions AS r')) != false){
-            if( ($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 = $DB->insert_record( 'game_queries', $query))){
-       print_error( "Can't insert to table game_queries");
-    }
-		
-    $snakes->queryid = $query->id;
-	
-	$updrec = new stdClass();	
-    $updrec->id = $snakes->id;
-    $updrec->queryid = $query->id;
-    $updrec->dice = $snakes->dice = rand( 1, 6);
-		
-	if( !$DB->update_record(  'game_snakes', $updrec)){
-       print_error( 'game_questions_selectrandom: error updating in game_snakes');
-    }
-
-	game_update_repetitions($game->id, $USER->id, $query->questionid, $query->glossaryentryid);
-
-    return true;
-}
-
-function game_snakes_showquestion( $id, $game, $snakes, $query, $context)
-{
-	if( $query->sourcemodule == 'glossary'){
-		game_snakes_showquestion_glossary( $id, $snakes, $query, $game);
-	}else
-	{
-		game_snakes_showquestion_question( $game, $id, $snakes, $query, $context);
-	}
-}
-
-function game_snakes_showquestion_question( $game, $id, $snakes, $query, $context)
-{
-	global $CFG;
-	
-	$questionlist = $query->questionid;
-    $questions = game_sudoku_getquestions( $questionlist);
-
-	/// Start the form
-    echo "<form id=\"responseform\" method=\"post\" action=\"{$CFG->wwwroot}/mod/game/attempt.php\" onclick=\"this.autocomplete='off'\">\n";
-	echo "<center><input type=\"submit\" name=\"finishattempt\" value=\"".get_string('sudoku_submit', 'game')."\"></center>\n";
-
-    // Add a hidden field with the quiz id
-    echo '<input type="hidden" name="id" value="' . s($id) . "\" />\n";
-    echo '<input type="hidden" name="action" value="snakescheck" />';
-    echo '<input type="hidden" name="queryid" value="' . $query->id . "\" />\n";
-
-	/// Print all the questions
-	foreach( $questions as $question)
-        game_print_question( $game, $question, $context);
-    // Add a hidden field with questionids
-    echo '<input type="hidden" name="questionids" value="'.$questionlist."\" />\n";
-
-    echo "</form>\n";    
-}
-
-function game_snakes_showquestion_glossary( $id, $snakes, $query, $game)
-{
-	global $CFG, $DB;
-	
-	$entry = $DB->get_record( 'glossary_entries', array('id' => $query->glossaryentryid));
-
-	/// Start the form
-    echo "<form id=\"responseform\" method=\"post\" action=\"{$CFG->wwwroot}/mod/game/attempt.php\" onclick=\"this.autocomplete='off'\">\n";
-	echo "<center><input type=\"submit\" name=\"finishattempt\" value=\"".get_string('sudoku_submit', 'game')."\"></center>\n";
-
-    // Add a hidden field with the queryid
-    echo '<input type="hidden" name="id" value="' . s($id) . "\" />\n";
-    echo '<input type="hidden" name="action" value="snakescheckg" />';
-    echo '<input type="hidden" name="queryid" value="' . $query->id . "\" />\n";
-
-	/// Print all the questions
-
-    // Add a hidden field with glossaryentryid
-    echo '<input type="hidden" name="glossaryentryid" value="'.$query->glossaryentryid."\" />\n";
-
-    $cmglossary = get_coursemodule_from_instance('glossary', $game->glossaryid, $game->course);
-    $contextglossary = game_get_context_module_instance( $cmglossary->id);
-    $s = game_filterglossary(str_replace( '\"', '"', $entry->definition), $query->glossaryentryid, $contextglossary->id, $game->course);
-    echo $s.'<br>';
-    
-    echo get_string( 'answer').': ';
-	echo "<input type=\"text\" name=\"answer\" size=30 /><br>";
-
-    echo "</form>\n";
-}
-
-
-function game_snakes_check_questions( $id, $game, $attempt, $snakes, $context)
-{
-	global $QTYPES, $CFG, $DB;
-
-    $responses = data_submitted();
-
-	if( $responses->queryid != $snakes->queryid){
-		game_snakes_play( $id, $game, $attempt, $snakes, $context);
-		return;
-	}
-
-	$questionlist = $DB->get_field( 'game_queries', 'questionid', array(  'id' => $responses->queryid));
-
-    $questions = game_sudoku_getquestions( $questionlist);
-	$correct = false;
-	$query = '';
-    foreach($questions as $question) {
-		$query = new stdClass();
-        $query->id = $snakes->queryid;
-
-        $grade = game_grade_responses( $question, $responses, 100, $answertext);
-        if( $grade < 99){
-			//wrong answer
-			game_update_queries( $game, $attempt, $query, 0, $answertext);
-            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, $context);
-}
-
-
-function game_snakes_check_glossary( $id, $game, $attempt, $snakes, $context)
-{
-	global $QTYPES, $CFG, $DB;
-
-    $responses = data_submitted();
-
-	if( $responses->queryid != $snakes->queryid){
-		game_snakes_play( $id, $game, $attempt, $snakes, $context);
-		return;
-	}
-
-	$query = $DB->get_record( 'game_queries', array( 'id' => $responses->queryid));
-
-    $glossaryentry = $DB->get_record( 'glossary_entries', array( '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, $context);
-}
-
-
-function game_snakes_position( $id, $game, $attempt, $snakes, $correct, $query, $context)
-{
-    global $DB;
-
-	$data = $DB->get_field( 'game_snakes_database', 'data', array( '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 = new stdClass();
-	$updrec->id = $snakes->id;
-	$updrec->position = $snakes->position;
-	$updrec->queryid = 0;
-	
-	if( !$DB->update_record( 'game_snakes', $updrec)){
-		print_error( "game_snakes_position: Can't update game_snakes");
-	}
-
-	$board = $DB->get_record_select( 'game_snakes_database', "id=$snakes->snakesdatabaseid");
-	$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, $context);
-}
-
-//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 $matches[ 1];
-	}
-	
-	return 0;	
-}
-
-function game_snakes_remove_attemptdata ($questionusageid, $questionid) {
-    global $DB;
-
-    $sql = "SELECT qas.id
-              FROM mdl_question_attempts qa
-         LEFT JOIN mdl_question_attempt_steps qas
-                ON qa.id=qas.questionattemptid
-             WHERE questionusageid = $questionusageid
-               AND questionid = $questionid
-               AND state != 'todo'";
-
-    if ($stepdata = $DB->get_records_sql($sql)) {
-        foreach($stepdata as $step) {
-            if ($step->id > 0) {
-                $DB->delete_records('question_attempt_step_data', array('attemptstepid' => $step->id));
-                $DB->get_records_sql("update {question_attempt_steps} set state='todo' where id = {$step->id}");
-            }
-        }
-    }
-}
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+// This files plays the game "Snakes and Ladders".
+
+function game_snakes_continue( $id, $game, $attempt, $snakes, $context) {
+    if ($attempt != false and $snakes != false) {
+        return game_snakes_play( $id, $game, $attempt, $snakes, $context);
+    }
+
+    if ($attempt === false) {
+        $attempt = game_addattempt( $game);
+    }
+
+    $newrec = new stdClass();
+    $newrec->id = $attempt->id;
+    $newrec->snakesdatabaseid = $game->param3;
+    if ($newrec->snakesdatabaseid == 0) {
+        $newrec->snakesdatabaseid = 1;
+    }
+    $newrec->position = 1;
+    $newrec->queryid = 0;
+    $newrec->dice = rand( 1, 6);
+    if (!game_insert_record(  'game_snakes', $newrec)) {
+        print_error( 'game_snakes_continue: error inserting in game_snakes');
+    }
+
+    game_updateattempts( $game, $attempt, 0, 0);
+
+    return game_snakes_play( $id, $game, $attempt, $newrec, $context);
+}
+
+function game_snakes_play( $id, $game, $attempt, $snakes, $context) {
+    global $CFG, $DB, $OUTPUT;
+
+    $board = game_snakes_get_board( $game);
+    $showboard = false;
+
+    if ($snakes->position > $board->cols * $board->rows && $snakes->queryid <> 0) {
+        $finish = true;
+
+        if (! $cm = $DB->get_record('course_modules', array( 'id' => $id))) {
+            print_error("Course Module ID was incorrect id=$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=\"$CFG->wwwroot/course/view.php?id=$cm->course\">".get_string( 'finish', 'game').'</a> ';
+
+        $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 = $DB->get_record( 'game_queries', array( 'id' => $snakes->queryid));
+        }
+        if ($game->toptext != '') {
+            echo $game->toptext.'<br>';
+        }
+        $showboard = true;
+    }
+
+    if ($showboard and $game->param8 == 0) {
+        game_snakes_showquestion( $id, $game, $snakes, $query, $context);
+    }
+?>
+    <script language="javascript" event="onload" for="window">
+    <!--    
+    var retVal = new Array();
+    var elements = document.getElementsByTagName("*");
+    for(var i = 0;i < elements.length;i++){
+        if( elements[ i].type == 'text'){
+            elements[ i].focus();
+            break;
+        }
+    }
+    -->
+    </script>
+
+	<table>
+	<tr>
+		<td>
+
+<div id="board" STYLE="position:relative; left:0px;top:0px; 
+    width:<?php p($board->width); ?>px; height:<?php p($board->height); ?>px;">
+<img src="<?php echo $board->imagesrc; ?>"></img>
+</div>
+
+<?php
+    if ($finish == false) {
+        game_snakes_showdice( $snakes, $board);
+    }
+?>
+		</td>
+	</tr>
+	</table>
+<?php
+
+    if ($game->bottomtext != '') {
+        echo '<br>'.$game->bottomtext;
+    }
+
+    if ($showboard and $game->param8 != 0) {
+        game_snakes_showquestion( $id, $game, $snakes, $query, $context);
+    }
+}
+
+function game_snakes_showdice( $snakes, $board) {
+    $pos = game_snakes_computeplayerposition( $snakes, $board);
+?>
+<div ID="player1" STYLE="position:relative; left:<?php p( $pos->x);?>px; top:<?php p( $pos->y);?>px;" >
+<img src="snakes/1/player1.png" 
+alt="<?php print_string('snakes_player', 'game', ($snakes->position + 1)); /*Accessibility. */ ?>" 
+width="<?php echo $pos->width; ?>" 
+height="<?php echo $pos->height; ?>"/>
+</div>
+
+<div ID="dice" STYLE="position:relative; 
+left:<?php p( $board->width + round($board->width / 3)); ?>px;
+top:<?php p( -2 * round($board->height / 3));?>px; ">
+	<img src="snakes/1/dice<?php p($snakes->dice);?>.png" alt="<?php print_string('snakes_dice', 'game', $snakes->dice) ?>" />
+	</div>	
+<?php
+}
+
+function game_snakes_computeplayerposition( $snakes, $board) {
+    $x = ($snakes->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;
+
+    $pos = new stdClass();
+    $pos->width = 22;
+    $pos->height = 22;
+
+    $pos->ofsx = 0;
+    $pos->ofsy = $pos->height;
+
+    switch( $board->direction) {
+        case 1:
+            if (($y % 2) == 1) {
+                $x = $board->cols - $x - 1;
+            }
+            $pos->x = $board->headerx + $x * $cellwidth + ($cellwidth - $pos->width) / 2 + $pos->ofsx;
+            $pos->y = $board->footery + $y * $cellheight + ($cellheight - $pos->height) / 2 + $pos->ofsy;
+            $pos->x = round( $pos->x);
+            $pos->y = round( -$pos->y);
+            break;
+    }
+
+    return $pos;
+}
+
+function game_snakes_computenextquestion( $game, &$snakes, &$query) {
+    global $DB, $USER;
+
+    // Retrieves CONST_GAME_TRIES_REPETITION words and select the one which is used fewer times.
+    if (($recs = game_questions_selectrandom( $game, 1, CONST_GAME_TRIES_REPETITION)) == false) {
+        return false;
+    }
+
+    $glossaryid = 0;
+    $questionid = 0;
+    $minnum = 0;
+    $query = new stdClass();
+    foreach ($recs as $rec) {
+        $a = array( 'gameid' => $game->id, 'userid' => $USER->id,
+                'questionid' => $rec->questionid, 'glossaryentryid' => $rec->glossaryentryid);
+        if (($rec2 = $DB->get_record('game_repetitions', $a, 'id,repetitions AS r')) != false) {
+            if (($rec2->r < $minnum) or ($minnum == 0)) {
+                $minnum = $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 = $DB->insert_record( 'game_queries', $query))) {
+        print_error( "Can't insert to table game_queries");
+    }
+
+    $snakes->queryid = $query->id;
+
+    $updrec = new stdClass();
+    $updrec->id = $snakes->id;
+    $updrec->queryid = $query->id;
+    $updrec->dice = $snakes->dice = rand( 1, 6);
+
+    if (!$DB->update_record( 'game_snakes', $updrec)) {
+        print_error( 'game_questions_selectrandom: error updating in game_snakes');
+    }
+
+    game_update_repetitions($game->id, $USER->id, $query->questionid, $query->glossaryentryid);
+
+    return true;
+}
+
+function game_snakes_showquestion( $id, $game, $snakes, $query, $context) {
+    if ($query->sourcemodule == 'glossary') {
+        game_snakes_showquestion_glossary( $id, $snakes, $query, $game);
+    } else {
+        game_snakes_showquestion_question( $game, $id, $snakes, $query, $context);
+    }
+}
+
+function game_snakes_showquestion_question( $game, $id, $snakes, $query, $context) {
+    global $CFG;
+
+    $questionlist = $query->questionid;
+    $questions = game_sudoku_getquestions( $questionlist);
+
+    // Start the form.
+    echo "<form id=\"responseform\" method=\"post\" ".
+        "action=\"{$CFG->wwwroot}/mod/game/attempt.php\" onclick=\"this.autocomplete='off'\">\n";
+    echo "<center><input type=\"submit\" name=\"finishattempt\" value=\"".get_string('sudoku_submit', 'game')."\"></center>\n";
+
+    // Add a hidden field with the quiz id.
+    echo '<input type="hidden" name="id" value="' . s($id) . "\" />\n";
+    echo '<input type="hidden" name="action" value="snakescheck" />';
+    echo '<input type="hidden" name="queryid" value="' . $query->id . "\" />\n";
+
+    // Print all the questions.
+    foreach ($questions as $question) {
+        game_print_question( $game, $question, $context);
+    }
+    // Add a hidden field with questionids.
+    echo '<input type="hidden" name="questionids" value="'.$questionlist."\" />\n";
+
+    echo "</form>\n";
+}
+
+function game_snakes_showquestion_glossary( $id, $snakes, $query, $game) {
+    global $CFG, $DB;
+
+    $entry = $DB->get_record( 'glossary_entries', array('id' => $query->glossaryentryid));
+
+    // Start the form.
+    echo "<form id=\"responseform\" method=\"post\" ".
+        "action=\"{$CFG->wwwroot}/mod/game/attempt.php\" onclick=\"this.autocomplete='off'\">\n";
+    echo "<center><input type=\"submit\" name=\"finishattempt\" value=\"".get_string('sudoku_submit', 'game')."\"></center>\n";
+
+    // Add a hidden field with the queryid.
+    echo '<input type="hidden" name="id" value="' . s($id) . "\" />\n";
+    echo '<input type="hidden" name="action" value="snakescheckg" />';
+    echo '<input type="hidden" name="queryid" value="' . $query->id . "\" />\n";
+
+    // Print all the questions.
+
+    // Add a hidden field with glossaryentryid.
+    echo '<input type="hidden" name="glossaryentryid" value="'.$query->glossaryentryid."\" />\n";
+
+    $cmglossary = get_coursemodule_from_instance('glossary', $game->glossaryid, $game->course);
+    $contextglossary = game_get_context_module_instance( $cmglossary->id);
+    $s = game_filterglossary(str_replace( '\"', '"', $entry->definition), $query->glossaryentryid,
+        $contextglossary->id, $game->course);
+    echo $s.'<br>';
+
+    echo get_string( 'answer').': ';
+    echo "<input type=\"text\" name=\"answer\" size=30 /><br>";
+
+    echo "</form>\n";
+}
+
+function game_snakes_check_questions( $id, $game, $attempt, $snakes, $context) {
+    global $QTYPES, $CFG, $DB;
+
+    $responses = data_submitted();
+
+    if ($responses->queryid != $snakes->queryid) {
+        game_snakes_play( $id, $game, $attempt, $snakes, $context);
+        return;
+    }
+
+    $questionlist = $DB->get_field( 'game_queries', 'questionid', array( 'id' => $responses->queryid));
+
+    $questions = game_sudoku_getquestions( $questionlist);
+    $correct = false;
+    $query = '';
+    foreach ($questions as $question) {
+        $query = new stdClass();
+        $query->id = $snakes->queryid;
+
+        $grade = game_grade_responses( $question, $responses, 100, $answertext);
+        if ($grade < 99) {
+            // Wrong answer.
+            game_update_queries( $game, $attempt, $query, 0, $answertext);
+            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, $context);
+}
+
+function game_snakes_check_glossary( $id, $game, $attempt, $snakes, $context) {
+    global $QTYPES, $CFG, $DB;
+
+    $responses = data_submitted();
+
+    if ($responses->queryid != $snakes->queryid) {
+        game_snakes_play( $id, $game, $attempt, $snakes, $context);
+        return;
+    }
+
+    $query = $DB->get_record( 'game_queries', array( 'id' => $responses->queryid));
+
+    $glossaryentry = $DB->get_record( 'glossary_entries', array( '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, $context);
+}
+
+function game_snakes_position( $id, $game, $attempt, $snakes, $correct, $query, $context) {
+    global $DB;
+
+    $data = $DB->get_field( 'game_snakes_database', 'data', array( '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 = new stdClass();
+    $updrec->id = $snakes->id;
+    $updrec->position = $snakes->position;
+    $updrec->queryid = 0;
+
+    if (!$DB->update_record( 'game_snakes', $updrec)) {
+        print_error( "game_snakes_position: Can't update game_snakes");
+    }
+
+    $board = $DB->get_record_select( 'game_snakes_database', "id=$snakes->snakesdatabaseid");
+    $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, $context);
+}
+
+// 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 $matches[ 1];
+    }
+
+    return 0;
+}
+
+function game_snakes_remove_attemptdata ($questionusageid, $questionid) {
+    global $DB;
+
+    $sql = "SELECT qas.id
+              FROM mdl_question_attempts qa
+         LEFT JOIN mdl_question_attempt_steps qas
+                ON qa.id=qas.questionattemptid
+             WHERE questionusageid = $questionusageid
+               AND questionid = $questionid
+               AND state != 'todo'";
+
+    if ($stepdata = $DB->get_records_sql($sql)) {
+        foreach ($stepdata as $step) {
+            if ($step->id > 0) {
+                $DB->delete_records('question_attempt_step_data', array('attemptstepid' => $step->id));
+                $DB->get_records_sql("update {question_attempt_steps} set state='todo' where id = {$step->id}");
+            }
+        }
+    }
+}