/*!
 * @file state.h
  *  Definition of the States-singleton Class
*/

#ifndef _STATE_H
#define _STATE_H

#include "base_object.h"

// FORWARD DEFINITION
class PNode;
class WorldEntity;
template<class T> class tList;

//! A Singleton class, that handles some states about orxonox's objects
class State : public BaseObject {

 public:
  // CAMERA //
  /** @param camera the PNode to the Camera, @param cameraTarget the PNode to the Camera's target */
  static void setCamera(const PNode* camera, const PNode* cameraTarget);
  /** @returns a Pointer to the PNode of the Camera */
  static inline const PNode* getCamera() { return State::camera; };
  /** @returns a Pointer to the CameraTarget */
  static inline const PNode* getCameraTarget() { return State::cameraTarget; };

  // WORLD_ENTITY_LIST //
  /** @param worldEntityList The World's List of WorldEntities */
  static inline void setWorldEntityList(tList<WorldEntity>* worldEntityList) { State::worldEntityList = worldEntityList; };
  /** @returns the List of WorldEntities */
  static inline tList<WorldEntity>* getWorldEntityList() { return State::worldEntityList; };

 private:
  State();

  static const PNode*           camera;             //!< A reference to the camera
  static const PNode*           cameraTarget;       //!< a reference to the cameraTarget

  static tList<WorldEntity>*    worldEntityList;    //!< The List of the worldEntities
};

#endif /* _STATE_H */