source: code/branches/FICN/src/loader/LevelLoader.cc @ 591

/*
 *   ORXONOX - the hottest 3D action shooter ever to exist
 *
 *
 *   License notice:
 *
 *   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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 *   Author: 
 *     Nicolas Perrenoud <nicolape@ee.ethz.ch>
 *   Co-authors:
 *      ...
 *
 */

#include <string>
#include <vector>
#include <iostream>
#include <algorithm>
#include <iterator>

#include <OgreOverlayManager.h>

#include "LevelLoader.h"
#include "tinyxml/tinyxml.h"
#include "orxonox/core/CoreIncludes.h"
#include "orxonox/core/Error.h"
#include "orxonox/objects/BaseObject.h"
#include "audio/AudioManager.h"
#include "orxonox/orxonox.h"

using namespace std;

namespace loader
{

LevelLoader::LevelLoader(string file, string path)
{
        valid_ = false;

        // Load XML level file
        path.append("/");
        path.append(file);

        // Open xml file
        doc.LoadFile(path);

        // Check if file was loaded
        if (doc.LoadFile())
        {
                TiXmlHandle hDoc(&doc);
                TiXmlHandle hRoot(0);
                TiXmlElement* pElem;

                // Check for root element
                pElem = hDoc.FirstChildElement("orxonoxworld").Element();
                if (pElem)
                {
                        // Set root element
                        hRoot = TiXmlHandle(pElem);
                        rootElement = hRoot.Element();

                        // Set level description
                        pElem = hRoot.FirstChild("description").Element();
                        if (pElem)
                        {
                                description_ = pElem->GetText();
                        }

                        // Set level name
                        name_ = rootElement->Attribute("name");
                        image_ = rootElement->Attribute("image");

                        valid_ = true;
                }
                else
                {
                        orxonox::Error("Level file has no valid root node");
                }
        }
        else
        {
                orxonox::Error("Could not load level file ");
        }
}

        void LevelLoader::loadLevel()
        {
                if (valid_)
                {
                        TiXmlElement* loadElem;
                        TiXmlElement* audioElem;
                        TiXmlElement* worldElem;
                        TiXmlElement* tElem;
                        TiXmlNode* tNode;

                        Ogre::OverlayManager& omgr = Ogre::OverlayManager::getSingleton();
                        Ogre::Overlay* mLoadOverlay;

                        // Set loading screen
                        loadElem = rootElement->FirstChildElement("loading");
                        if (loadElem)
                        {
                                // Set background
                                tElem = loadElem->FirstChildElement("background");
                                if (tElem)
                                {
                                        loadingBackgroundColor_ = tElem->Attribute("color");
                                        loadingBackgroundImage_ = tElem->Attribute("image");
                                }
                                // Set bar
                                tElem = loadElem->FirstChildElement("bar");
                                if (tElem)
                                {
                                        loadingBarImage_ = tElem->Attribute("image");;
                                        loadingBarTop_ = tElem->Attribute("top");
                                        loadingBarLeft_ = tElem->Attribute("left");
                                        loadingBarWidth_ = tElem->Attribute("width");
                                        loadingBarHeight_ = tElem->Attribute("height");
                                }


                    mLoadOverlay = (Ogre::Overlay*)omgr.getByName("Orxonox/LoadingScreenSample");
                    mLoadOverlay->show();

                                COUT(0) << "\n\n\nThis is Orxonox\nthe hottest 3D action shooter ever to exist\n\n\n";
                                COUT(0) << "Level: " << name() << "\nDescription:" << description() << "\nImage:"<<image()<<"\n\n\n";
                                COUT(4) << "Backgroundcolor: " << loadingBackgroundColor_ << "\nBackgroundimage:" << loadingBackgroundImage_ << "\n\n\n";

                        }

                        // Load audio
                        audio::AudioManager* auMan = orxonox::Orxonox::getSingleton()->getAudioManagerPointer();
                        audioElem = rootElement->FirstChildElement("audio");
                        if (audioElem)
                        {
                                audioElem = audioElem->FirstChildElement("ambient");
                                if (audioElem)
                                {
                                        tNode = 0;
                                        while( tNode = audioElem->IterateChildren( tNode ) )
                                        {
                                                tElem = tNode->ToElement();
                                                std::string elemVal = tElem->Value();
                                                if (elemVal == "ogg")
                                                {
                                        auMan->ambientAdd(tElem->Attribute("src"));
                                                }
                                        }               
                                }       
                        }
                        
                        // Load world
                        worldElem = rootElement->FirstChildElement("world");
                        if (worldElem)
                        {
                                tNode = 0;
                                while( tNode = worldElem->IterateChildren( tNode ) )
                                {
                                        tElem = tNode->ToElement();
                                        orxonox::Identifier* id = ID(tElem->Value());
                                        if (id)
                                        {
                        orxonox::BaseObject* obj = id->fabricate();
                        obj->loadParams(tElem);
                                        }
                                        else
                                        {
                                            COUT(2) << "Warning: '"<< tElem->Value() <<"' is not a valid classname.\n";
                                        }
                                }
                        }

                        if (loadElem)
                        {
                                 mLoadOverlay->hide();
                        }
                        COUT(0) << "Loading finished!\n\n\n\n\n";
                }
        }

        LevelLoader::~LevelLoader()
        {

        }


        string LevelLoader::name()
        {
                return this->name_;
        }

        string LevelLoader::description()
        {
                return this->description_;
        }

        string LevelLoader::image()
        {
                return this->image_;
        }


}