src/ogrestartup.cpp

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#include "ogrestartup.h"

using namespace Ogre;

OgreStartup::OgreStartup(){
}

OgreStartup::~OgreStartup(){
  WindowEventUtilities::removeWindowEventListener(mWindow, this);
  mInputManager->destroyInputObject(mKeyboard);
  mInputManager->destroyInputObject(mMouse);
  OIS::InputManager::destroyInputSystem(mInputManager);
  delete mSystem;
  delete mRenderer;
  delete mRoot;
}

void OgreStartup::go(void){
  startLog();
  createRoot();
  defineResources();
  setupRenderSystem();
  createRenderWindow();
  setupScene();
  createCamera();
  setupViewport();
  initializeResourceGroups();
//  setupAudioSystem();
  setupCEGUI();
  setupInputSystem();
  createScene();
  createFrameListener();
  startRenderLoop();
}

void OgreStartup::startLog(void){
  LogManager *logMgr = new LogManager();
  logMgr->createLog("OgreViewer.log",true, true, false);
}

void OgreStartup::createRoot(void){
  mRoot = new Root();
}

void OgreStartup::defineResources(void){
  String secName, typeName, archName;
  ConfigFile cf;
  cf.load("resources.cfg");
  ConfigFile::SectionIterator seci = cf.getSectionIterator();
  while(seci.hasMoreElements()){
    secName = seci.peekNextKey();
    ConfigFile::SettingsMultiMap *settings = seci.getNext();
    ConfigFile::SettingsMultiMap::iterator i;
    for(i = settings->begin(); i!= settings->end(); ++i){
      typeName = i->first;
      archName = i->second;
      ResourceGroupManager::getSingleton().addResourceLocation(archName, typeName, secName);
    }
  }
}

void OgreStartup::setupRenderSystem(void){
  if(!mRoot->restoreConfig() && !mRoot->showConfigDialog())
  throw Exception(52, "User canceled the config dialog.", "OgreStartup::setupRenderSystem()");
}

void OgreStartup::createRenderWindow(void){
  mWindow = mRoot->initialise(true, "Desert Challenge");
#ifdef DEBUG
  //mWindow->setFullscreen(false,800,600);
  //mWindow->resize(800,600);
#endif
}

void OgreStartup::initializeResourceGroups(void){
  ResourceGroupManager::getSingleton().initialiseAllResourceGroups();
}

void OgreStartup::setupScene(void){
  mSceneMgr = mRoot->createSceneManager(ST_GENERIC);
}

void OgreStartup::createCamera(void){
  mCamera = mSceneMgr->createCamera("DefaultCamera");
  mCamera->setNearClipDistance(5);
  mCamera->setFarClipDistance(8000);
  mSceneMgr->getRootSceneNode()->createChildSceneNode("CameraNode")->attachObject(mCamera);
}

void OgreStartup::setupViewport(void){
  Viewport *vp = mWindow->addViewport(mCamera);
  vp->setBackgroundColour( ColourValue(0, 0, 0.0) );
  mCamera->setAspectRatio( Real(vp->getActualWidth()) / Real(vp->getActualHeight()) );
  TextureManager::getSingleton().setDefaultNumMipmaps(9);
}

void OgreStartup::setupInputSystem(void){
  size_t windowHnd = 0;
  std::ostringstream windowHndStr;
  OIS::ParamList pl;
  RenderWindow *win = mRoot->getAutoCreatedWindow();

  win->getCustomAttribute("WINDOW",&windowHnd);
  windowHndStr << windowHnd;
  pl.insert(std::make_pair(std::string("WINDOW"), windowHndStr.str()));
  mInputManager = OIS::InputManager::createInputSystem(pl);

  try{
    mKeyboard = static_cast<OIS::Keyboard*>(mInputManager->createInputObject(OIS::OISKeyboard, false));
  }catch(const OIS::Exception &e){
    throw Exception(42, e.eText, "OgreStartup::setupInputSystem");
  }
  // THIS games itself has no need of mouse, so if it failes, we just ignore
  try{
    mMouse    = static_cast<OIS::Mouse*>(mInputManager->createInputObject(OIS::OISMouse, true));
  }catch(...){
    mMouse    = 0;
  }
  windowResized(mWindow);
  WindowEventUtilities::addWindowEventListener(mWindow, this);
}

void OgreStartup::windowResized(RenderWindow* rw){
  unsigned int width, height, depth;
  int left, top;
  rw->getMetrics(width, height, depth, left, top);
  const OIS::MouseState &ms = mMouse->getMouseState();
  ms.width = width;
  ms.height = height;
}

void OgreStartup::setupCEGUI(void){
  mWindow   = mRoot->getAutoCreatedWindow();
  mRenderer = new CEGUI::OgreCEGUIRenderer(mWindow, Ogre::RENDER_QUEUE_OVERLAY, false, 3000, mSceneMgr);
  mSystem   = new CEGUI::System(mRenderer);
}

void OgreStartup::setupAudioSystem(void){
  mSoundMgr = new OgreAL::SoundManager();
}

void OgreStartup::startRenderLoop(void){
  mRoot->startRendering();
}

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