Engine.h

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#ifndef OSMSCOUT_NAVIGATION_ENGINE_H
#define OSMSCOUT_NAVIGATION_ENGINE_H
 
/*
 This source is part of the libosmscout library
 Copyright (C) 2018  Tim Teulings
 
 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 <list>
#include <vector>
 
#include <osmscout/GeoCoord.h>
 
#include <osmscout/util/String.h>
 
namespace osmscout {


  struct OSMSCOUT_API NavigationMessage
  {
    const Timestamp timestamp;
 
    explicit NavigationMessage(const Timestamp& timestamp);
    virtual ~NavigationMessage() = default;
  };
 
  using NavigationMessageRef = std::shared_ptr<NavigationMessage>;

  struct OSMSCOUT_API InitializeMessage CLASS_FINAL : public NavigationMessage
  {
    explicit InitializeMessage(const Timestamp& timestamp);
  };

  struct OSMSCOUT_API TimeTickMessage CLASS_FINAL : public NavigationMessage
  {
    explicit TimeTickMessage(const Timestamp& timestamp);
  };
 
  class OSMSCOUT_API NavigationAgent
  {
  public:
    virtual ~NavigationAgent() = default;
 
    virtual std::list<NavigationMessageRef> Process(const NavigationMessageRef& message) = 0;
  };
 
  using NavigationAgentRef = std::shared_ptr<NavigationAgent>;
 
  class OSMSCOUT_API NavigationEngine
  {
  private:
    std::vector<NavigationAgentRef> agents;
 
  public:
    explicit NavigationEngine(std::initializer_list<NavigationAgentRef> agents);
    std::list<NavigationMessageRef> Process(const NavigationMessageRef& message) const;
  };
}
 
#endif