class.assClozeSelectGap.php

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<?php
 /*
   +----------------------------------------------------------------------------+
   | ILIAS open source                                                          |
   +----------------------------------------------------------------------------+
   | Copyright (c) 1998-2001 ILIAS open source, University of Cologne           |
   |                                                                            |
   | This program 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 2             |
   | of the License, or (at your option) any later version.                     |
   |                                                                            |
   | This program 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 this program; if not, write to the Free Software                |
   | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | 
   +----------------------------------------------------------------------------+
*/

include_once "./Modules/TestQuestionPool/classes/class.assClozeGap.php";

class assClozeSelectGap extends assClozeGap
{
  var $shuffle;

  function assClozeSelectGap($a_type)
  {
    $this->type = $a_type;
                $this->items = array();
                $this->shuffle = TRUE;
  }
  
  function getShuffle() 
        {
    return $this->shuffle;
  }

  function setType($a_shuffle = TRUE) 
        {
    $this->shuffle = $a_shuffle ? TRUE : FALSE;
  }

        function arrayShuffle($array)
        {
                mt_srand((double)microtime()*1000000);
                $i = count($array);
                if ($i > 0)
                {
                        while(--$i)
                        {
                                $j = mt_rand(0, $i);
                                if ($i != $j)
                                {
                                        // swap elements
                                        $tmp = $array[$j];
                                        $array[$j] = $array[$i];
                                        $array[$i] = $tmp;
                                }
                        }
                }
                return $array;
        }

  function getItems() 
        {
                if ($this->shuffle)
                {
            return $this->arrayShuffle($this->items);
                }
                else
                {
                        return $this->items;
                }
  }
}

?>