#include "cameranodeobject.h"

#include <OgreRoot.h>
#include <OgreSceneNode.h>
#include <OgreCamera.h>

static const Ogre::Vector3 initialPosition(0, 0, 300);

CameraNodeObject::CameraNodeObject(Ogre::Camera *cam, QObject *parent) :
    QObject(parent),
    m_camera(cam),
    m_yaw(0),
    m_pitch(0),
    m_zoom(1)
{
    m_node = Ogre::Root::getSingleton().getSceneManager("mySceneManager")->getRootSceneNode()->createChildSceneNode();
    m_node->attachObject(cam);
    cam->move(initialPosition);
}

void CameraNodeObject::updateRotation()
{
    m_node->resetOrientation();
    m_node->yaw(Ogre::Radian(Ogre::Degree(m_yaw)));
    m_node->pitch(Ogre::Radian(Ogre::Degree(m_pitch)));
}

void CameraNodeObject::setZoom(qreal z)
{
    m_zoom = z;
    m_node->resetOrientation();
    m_camera->setPosition(initialPosition * (1 / m_zoom));
    updateRotation();
}