Jazz Jackrabbit 2 Online

<?php
ini_set('memory_limit', 10000000000);
ini_set('max_execution_time', 0);
/**
 * class.Level.php
 * 
 * Provides an interface to read Level (J2L) files.
 *
 * LICENSE:
 *
 *             DO WHAT THE FUCK YOU WANT TO LICENSE
 *                       Version 2, December 2004
 * 
 * Copyright (C) 2009 Stijn Peeters
 * 
 * Everyone is permitted to copy and distribute verbatim or modified
 * copies of this license document, and changing it is allowed as long
 * as the name is changed.
 * 
 *             DO WHAT THE FUCK YOU WANT TO LICENSE
 * TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 * 
 * 0. You just DO WHAT THE FUCK YOU WANT TO.
 *
 * @package    J2Ov4
 * @author     Stijn Peeters
 * @copyright  Copyright (c) 2009, Stijn Peeters
 * @version    0.5
 * @link       http://www.stijnpeeters.nl/
 */
 /**
 * Level class
 * 
 * Reads and interprets Jazz Jackrabbit 2 Level files
 *
 * @package    J2Ov4
 * @author     Stijn Peeters
 * @copyright  Copyright (c) 2009, Stijn Peeters
 * @version    0.5
 * @todo       Support for flipped and animated tiles
 * @todo       Other stuff I didn't think of yet!
 */
    /**
     * @var  int     The handle to the Level tile to read from.
     * @access private
     */
    $rResource=null;
    /**
     * @var  mixed  Image Data header bytes (raw pixels).
     * @access private
     */
    $_Header     = false;
    /**
     * @var  mixed  Level info header bytes.
     * @access private
     */
    $_LevelInfo  = false;
    /**
     * @var  mixed  Level event data bytes.
     * @access private
     */
    $_EventData  = false;
    /**
     * @var  mixed  Tile dictionary bytes.
     * @access private
     */
    $_Dictionary = false;
    /**
     * @var  mixed  Tile cache bytes.
     * @access private
     */
    $_TileCache  = false;
    /**
     * @var  int     Quick Preview image (GDLib resource).
     * @access private
     */
    $rQuickPreview = null;
    /**
     * @var  int     Real Preview image (GDLib resource).
     * @access private
     */
    $rRealPreview = null;
    /**
     * @var  array   Level information such as tileset, settings, name, etc
     * @access private
     */
    $aLevelInfo  = array();
    /**
     * @var  array   Parsed dictionary data to be used in rendering the level.
     * @access private
     */
    $aWords      = array();
    /**
     * @var  array   The version of the level.
     * @access private
     */
    $sVersion    = '';
    /**
     * @var  array   Byte offsets for several parts of the level.
     */
    $aOffsets   = array();
    /**
     * @var  boolean Whether debug messages should be printed or not.
     * @access private
     */
    $bDebug     = false;
    /**
         * Size of the Level header
         */
    define( "SIZE_HEADER" ,262 );
    /**
     * Every tile will be x pixels in the preview
     */
    define( "PREVIEW_SCALE" ,32 );
    /**
     * Max width/height of the image, to prevent out of memory problems
     */
    define( "MAX_DIMENSION" ,10000 );
    /**
     * Level info structure (see php's pack() function for syntax info)
     */
    define( "LEVL_STRUCT" ,'xWTF/
                 vJcsHorizontal/
                 vSecurityEnvelope1/
                 vJcsVertical/
                 CSecurityEnvelope2/
                 CSecEnvAndLayer/
                 CMinimumAmbient/
                 CStartingAmbient/
                 vAnimsUsed/
                 CSplitScreenDivider/
                 CIsItMultiplayer/
                 VStreamSize/
                 a32LevelName/
                 a32Tileset/
                 a32BonusLevel/
                 a32NextLevel/
                 a32SecretLevel/
                 a32MusicFile/
                 A8192HelpStrings/
                 V8LayerProperties/
                 x8LayerUnknown1/
                 C8IsLayerUsed/
                 V8JcsLayerWidth/
                 V8LayerWidth/
                 V8LayerHeight/
                 x16LayerUnknown2/
                 x32LayerUnknown3/
                 x32LayerUnknown4/
                 x24LayerUnknown5/
                 l8LayerXSpeed/
                 l8LayerYSpeed/
                 l8LayerAutoXSpeed/
                 l8LayerAutoYSpeed/
                 x8LayerUnknown6/
                 C3LayerRGB1/
                 C3LayerRGB2/
                 C3LayerRGB3/
                 C3LayerRGB4/
                 C3LayerRGB5/
                 C3LayerRGB6/
                 C3LayerRGB7/
                 C3LayerRGB8/
                 vStaticTiles' );
        /**
         * This is the directory the class will look in for cached tileset images
         */
        define( "CACHE_DIR" ,'./' );
        /**
         * This is the directory the class will look in for tilesets if no image is found
         */
        define( "ROOT_DIR"  ,'./' );
    /**
         * Magic byte value for TSF tilesets
         */
    define( "VERSION_TSF" ,515 );
    /**
         * Magic byte value for 1.23 tilesets
         */
    define( "VERSION_123" ,514 );
 
    /**
     * Constructor method
     */
    function construct($sFilename) {
    	global $rResource,$aOffsets;
        if(!is_readable($sFilename)) {
                debug('Tileset file not found');
            return false;
        }
        
        $sPath = $sFilename;
        $rResource = fopen($sPath, 'rb');
    
        $rQuickPreview = false;
        $rRealPreview  = false;
    
        getHeader();
        return getLevelInfo();
    }
    
    /**
     * Retrieve Level header
     */
    function getHeader() {
    	global $rResource,$aOffsets,$sVersion;
        $_Header = fread($rResource, SIZE_HEADER);
        $aOffsets = array();
        list(,$aOffsets['info_c']) = unpack('V', substr($_Header, 230, 4));
        list(,$aOffsets['info_u']) = unpack('V', substr($_Header, 234, 4));
        /*list(,$aOffsets['evnt_c']) = unpack('V', substr($_Header, 238, 4));
        list(,$aOffsets['evnt_u']) = unpack('V', substr($_Header, 242, 4));
        list(,$aOffsets['dict_c']) = unpack('V', substr($_Header, 246, 4));
        list(,$aOffsets['dict_u']) = unpack('V', substr($_Header, 250, 4));
        list(,$aOffsets['tile_c']) = unpack('V', substr($_Header, 254, 4));
        list(,$aOffsets['tile_u']) = unpack('V', substr($_Header, 258, 4));*/
        list(,$sVersion)           = unpack('v', substr($_Header, 220, 2));
    }
 
    /**
     * Get level info data
     */
    function getInfoData() {
    	global $rResource,$aOffsets,$_LevelInfo;
            if(!$_LevelInfo) {
                    $_LevelInfo = gzuncompress(fread($rResource, $aOffsets['info_c']));
            }
            return $_LevelInfo;
    }

    /**
     * Get level info
     */
        function getLevelInfo($mReturn = false) {
        	global $aLevelInfo, $_LevelInfo;
                if($aLevelInfo) {
                        if($mReturn == 'layers') {
                                return $aLevelInfo['layers'];
                        }
                        return $aLevelInfo;
                }
                //if(!$_LevelInfo) {
                        getInfoData();
                //}
                $sFormat = str_replace(array("\n", "\r", ' '), '', LEVL_STRUCT);
                $aLevelInfo = unpack($sFormat, $_LevelInfo);
                
                $aLevelInfo = $aLevelInfo;
                if($mReturn == 'layers') {
                        return $aLevelInfo['layers'];
                }
                $_LevelInfo=false;
                $aa=$aLevelInfo;
                $aLevelInfo=false;
                return $aa;
        }
?>