/*
*   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:
*      Yuning Chai
*   Co-authors:
*      Felix Schulthess
*
*/


#include "OrxonoxStableHeaders.h"
#include <OgreOverlay.h>
#include <OgreOverlayContainer.h>
#include <OgreOverlayManager.h>
#include <OgreSceneNode.h>
#include <OgreEntity.h>
#include "core/Debug.h"

#include "HUD.h"
#include "BarOverlayElement.h"
#include "RadarOverlayElement.h"
#include "OverlayElementFactories.h"

namespace orxonox
{
  using namespace Ogre;

  HUD::HUD(int zoom){
    om = &Ogre::OverlayManager::getSingleton();

    BarOverlayElementFactory *barOverlayElementFactory = new BarOverlayElementFactory();
    om->addOverlayElementFactory(barOverlayElementFactory);

    RadarOverlayElementFactory *radarOverlayElementFactory = new RadarOverlayElementFactory();
    om->addOverlayElementFactory(radarOverlayElementFactory);

    orxonoxHUD = om->create("Orxonox/HUD");

    container = static_cast<Ogre::OverlayContainer*>(om->createOverlayElement("Panel", "Orxonox/HUD/container"));

    energyCounter = static_cast<BarOverlayElement*>(om->createOverlayElement("Bar", "energyCounter"));
    energyCounter->show();

    speedo = static_cast<BarOverlayElement*>(om->createOverlayElement("Bar", "speedo"));
    speedo->show();

    radar = static_cast<RadarOverlayElement*>(om->createOverlayElement("Radar", "radar"));
    radar->show();

    container->addChild(energyCounter);
    container->addChild(speedo);
    container->addChild(radar);
    container->show();
    orxonoxHUD->add2D(container);
    orxonoxHUD->show();
    container->setLeft(0.0);
    container->setTop(0.0);
    container->setWidth(1.0);
    container->setHeight(1.0);
    container->setMetricsMode(Ogre::GMM_RELATIVE);

    energyCounter->init(0.01, 0.01, 0.2, 0.02, container);
    energyCounter->setValue(1);

    speedo->init(0.01, 0.04, 0.2, 0.02, container);

    radar->init(0.5, 0.9, 0.2, container);
  }

  void HUD::tick(float dt)
  {
      float v = SpaceShip::instance_s->getVelocity().length();
      float vmax = SpaceShip::instance_s->getMaxSpeed();
      speedo->setValue(v/vmax);
      radar->update();
  }

  HUD::~HUD(void){
  }
}