/*
*   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
*
*/

#ifndef _RadarOverlayElement_H__
#define _RadarOverlayElement_H__

#include "OrxonoxPrereqs.h"

#include <OgrePrerequisites.h>
#include <OgrePanelOverlayElement.h>
#include "util/Math.h"

namespace orxonox
{
    class _OrxonoxExport RadarOverlayElement : public Ogre::PanelOverlayElement
    {
      private:
        Ogre::OverlayManager* om;               // our one and only overlay manager
        Ogre::OverlayContainer* container_;     // pointer to the container we're in
        Vector3 currentDir_;
        Vector3 currentOrth_;
        Vector3 shipPos_;                       // position of ship

        Ogre::Real leftRel_, topRel_, dimRel_;  // relative position/dimension
        int left_, top_, dim_;                  // absolute position/dimension
        int windowW_, windowH_;             	  // absolute window dimensions

      public:
        RadarOverlayElement(const Ogre::String& name);
        ~RadarOverlayElement();
        void init(Real leftRel, Real topRel, Real dimRel, Ogre::OverlayContainer* container);
        void resize();
        void update();
        void listObjects();

        static float calcRadius(Vector3 pos, Vector3 dir, Vector3 orth, RadarObject* obj);
        static float calcPhi(Vector3 pos, Vector3 dir, Vector3 orth, RadarObject* obj);
        static bool calcRight(Vector3 pos, Vector3 dir, Vector3 orth, RadarObject* obj);
  };
}

#endif /* _RadarOverlayElement_H__ */