BearingAgent.h

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#ifndef OSMSCOUT_NAVIGATION_BEARING_AGENT_H
#define OSMSCOUT_NAVIGATION_BEARING_AGENT_H
 
/*
 This source is part of the libosmscout library
 Copyright (C) 2018  Tim Teulings
 Copyright (C) 2019  Lukas Karas
 
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.
 
 This library 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
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 */
 
#include <osmscout/navigation/Engine.h>
#include <osmscout/navigation/Agents.h>
#include <osmscout/navigation/PositionAgent.h>
 
namespace osmscout {
 
  struct OSMSCOUT_API BearingChangedMessage CLASS_FINAL : public NavigationMessage
  {
    const Bearing bearing;
 
    BearingChangedMessage(const Timestamp& timestamp,
                          const Bearing &bearing);
  };
 
  class OSMSCOUT_API BearingAgent CLASS_FINAL : public NavigationAgent
  {
  private:
    GeoCoord previousPoint;
    Bearing previousBearing;
    bool previousPointValid{false};
    Timestamp lastUpdate;
 
  public:
    explicit BearingAgent() = default;
    std::list<NavigationMessageRef> Process(const NavigationMessageRef& message) override;
  };
}
 
#endif //OSMSCOUT_NAVIGATION_BEARING_AGENT_H