/* -*-c++-*-
 * testAI - aicharacter (.h & .cpp) - Using 'The MIT License'
 * Copyright (C) 2004-2006 MOVES Institute
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * Bradley Anderegg 06/29/2006
 */

#ifndef __DELTA_AICHARACTER_H__
#define __DELTA_AICHARACTER_H__

#include <dtCore/refptr.h>
#include <osg/Referenced>
#include <dtCore/scene.h>
#include <dtCore/camera.h>
#include <dtAI/waypointinterface.h>
#include <dtAI/astarwaypointutils.h>
#include <string>

#include <dtAnim/characterwrapper.h>

namespace dtAI
{
   /**
    * A Wrapper around a dtAnim::CharacterWrapper that allows it to go between Waypoints
    */
   class AICharacter: public osg::Referenced
   {
   public:
      AICharacter(dtCore::Scene* pScene, const WaypointInterface* pWaypoint, const std::string& pFilename, unsigned pSpeed);

   protected:
      /*virtual*/ ~AICharacter();

   public:
      void Update(float dt);
      void SetPosition(const WaypointInterface* pWaypoint);

      osg::Vec3 GetPosition() const;
      osg::Vec3 GetForward() const;

      bool FindPathAndGoToWaypoint(const WaypointInterface* pWaypoint);
      const WaypointInterface* GetCurrentWaypoint(){return mCurrentWaypoint;}

      const WaypointAStar::config_type& GetConfig() const;

      dtAnim::CharacterWrapper* GetCharacter() const {return mCharacter.get();}

   private:
      void ApplyStringPulling();
      void GoToWaypoint(float dt, const WaypointInterface* pWaypoint);
      bool AmAtWaypoint(const WaypointInterface* pWaypoint);
      void SetRotation(float dt, const WaypointInterface* pWaypoint);

      unsigned mSpeed;
      dtCore::RefPtr<dtAnim::CharacterWrapper> mCharacter;

      // pathfinding stuff
      const WaypointInterface* mCurrentWaypoint;
      WaypointAStar::container_type mWaypointPath;
      WaypointAStar mAStar;
      dtCore::RefPtr<dtCore::Scene> mScene;
   };

} // namespace dtAI

#endif // __DELTA_AICHARACTER_H__