third_person_follower_view_controller.h

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/*
 * Copyright (c) 2009, Willow Garage, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Willow Garage, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 */

#ifndef RVIZ_THIRD_PERSON_VIEW_CONTROLLER_H
#define RVIZ_THIRD_PERSON_VIEW_CONTROLLER_H

#include "rviz/default_plugin/view_controllers/orbit_view_controller.h"

#include <OgreVector3.h>

namespace Ogre
{
class SceneNode;
}

namespace rviz
{
class TfFrameProperty;

class ThirdPersonFollowerViewController : public OrbitViewController
{
  Q_OBJECT
public:
  void onInitialize() override;

  void handleMouseEvent(ViewportMouseEvent& evt) override;

  void lookAt(const Ogre::Vector3& point) override;

  void mimic(ViewController* source_view) override;

protected:
  void updateCamera() override;

  void updateTargetSceneNode() override;

  bool intersectGroundPlane(Ogre::Ray mouse_ray, Ogre::Vector3& intersection_3d);
};

} // namespace rviz

#endif // RVIZ_VIEW_CONTROLLER_H