<?php

/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */

/**
 * 3d Library
 *
 * PHP versions 5
 *
 * LICENSE: 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category  Image
 * @package   Image_3D
 * @author    Kore Nordmann <3d@kore-nordmann.de>
 * @copyright 1997-2005 Kore Nordmann
 * @license   http://www.gnu.org/licenses/lgpl.txt lgpl 2.1
 * @version   CVS: $Id$
 * @link      http://pear.php.net/package/PackageName
 * @since     File available since Release 0.1.0
 */

require_once('Image/3D/Paintable/Object.php');
require_once('Image/3D/Paintable/Object/3dsChunks.php');

/**
 * Image_3D_Object_3ds
 *
 * @category  Image
 * @package   Image_3D
 * @author    Kore Nordmann <3d@kore-nordmann.de>
 * @copyright 1997-2005 Kore Nordmann
 * @license   http://www.gnu.org/licenses/lgpl.txt lgpl 2.1
 * @version   Release: @package_version@
 * @link      http://pear.php.net/package/PackageName
 * @since     Class available since Release 0.1.0
 */
class Image_3D_Object_3ds extends Image_3D_Object {
    
    protected $_file;
    protected $_fileSize;
    protected $_objects;
    
    protected $_chunks;
    
    public function __construct($file) {
        parent::__construct();
        $this->_points = array();
        $this->_chunks = array();
        $this->_objects = array();

        if (!is_file($file) || !is_readable($file)) {
            throw new exception('3ds file could not be loaded.');
        }
        $this->_file = $file;
        
        $this->_readChunks();
    }
    
    protected function _readChunks()
    {
        $this->_chunks = new Image_3D_Chunk(Image_3D_Chunk::MAIN3DS, substr(file_get_contents($this->_file), 6));
        $this->_chunks->readChunks();
        
        $editor = $this->_chunks->getFirstChunkByType(Image_3D_Chunk::EDIT3DS);
        $editor->readChunks();
        
        $objects = $editor->getChunksByType(Image_3D_Chunk::EDIT_OBJECT);
        foreach ($objects as $object) {
            $object = new Image_3D_Chunk_Object($object->getType(), $object->getContent());
            $object->readChunks($this);
        }
    }
    
    public function addObject($id)
    {
        $id = (string) $id;
        $this->_objects[$id] = new Image_3D_Object_3ds_Object();
        return $this->_objects[$id];
    }
    
    public function getObjectIDs() {
        return array_keys($this->_objects);
    }
    
    public function getObject($id) {
        if (!@isset($this->_objects[$id])) return false;
        return $this->_objects[$id];
    }
    
    public function paint() {
        foreach ($this->_objects as $object) $object->paint();
    }
    
    public function getPolygonCount()
    {
        $count = 0;
        foreach ($this->_objects as $object) $count += $object->getPolygonCount();
        return $count;
    }
    
    public function setColor(Image_3D_Color $color) {
        foreach ($this->_objects as $object) $object->setColor($color);
    }
    
    public function setOption($option, $value) {
        foreach ($this->_objects as $object) $object->setOption($option, $value);
    }

    public function transform(Image_3D_Matrix $matrix, $id = null) {
        if ($id === null) $id = substr(md5(microtime()), 0, 8);
        foreach ($this->_objects as $object) $object->transform($matrix, $id);
    }

    public function subdivideSurfaces($factor) {
        foreach ($this->_objects as $object) $object->subdivideSurfaces($factor);
    }
    
    public function getPolygones()
    {
        $polygones = array();
        foreach ($this->_objects as $object) $polygones = array_merge($polygones, $object->getPolygones());
        return $polygones;
    }
}

?>