/**
*******************************************************************************

  @file /gui/engine/MapCamera.h
  @brief Kamera mapy
  

  @author Pavel
  @version 0.1
 
******************************************************************************/
#ifndef MAPCAMERA_H
#define MAPCAMERA_H

#include "gui/engine/Scene.h"
#include "gui/engine/Camera.h"
#include "gui/engine/MapControllers.h"
#include "gui/common/mymath.h"
#include "gui/GUI.h"
#include "gui/model/guimap.h"

namespace gui{
//FWD
class TguiMap;

/// Standartni nastaveni perspektivy 
#define VIEW_ANGLE    60
#define ASPECT_RATIO  1.33f
#define NEAR_CLIP     1
#define FAR_CLIP      (8*HEX_EDGE_LENGTH)

/// Kamera.
//@{
const float CAM_MAX_HEIGHT = (float)(M_PI/2-M_PI/20);
const float CAM_MIN_HEIGHT = (float)(M_PI/6);
const float CAM_MIN_RADIUS = HEX_EDGE_LENGTH;
const float CAM_MAX_RADIUS = FAR_CLIP-3*HEX_EDGE_LENGTH;

const float CAM_BASE_HEIGHT = CAM_MAX_HEIGHT;
const float CAM_BASE_WIDTH = (float)M_PI;
const float CAM_BASE_RADIUS = HEX_EDGE_LENGTH*2.5f;

const float CAM_TURN_STEP = (float)(M_PI/700);
const float CAM_SCROLL_STEP = 30.0f;
const float CAM_RADIUS_STEP = 50.0f;
//@}

/// Nejnizsi vyska kamery nad terenem 
const float CAM_ABOVE_MAP	= (HEX_EDGE_LENGTH/10.0f);

/** Hlavni kamera na scene. */
class TMainCamera : public TCamera
{
protected:
	TguiMap *guiMap;  ///< guimapa
	V2I startEdit;    ///< Souradnice kursoru
	bool editing;     ///< meni se orientace kamery
  /** Prepocet parametru kamery 
  */
	void calculateCameraLook();
public:
	P3F centre;   ///< stred pohledu
	float width;  ///< ??
  float height; ///< ??
  float radius; ///< ??
  /** Konstruktor.
    @param map Mapa.
  */
  TMainCamera(TguiMap *map);
  /** ??
  */
	void base();
  /** Inicializace kamery.
  */
  virtual void initCam();
  /// Hlavni operace.
  //@{
	void turn(double dw,double dh);
	void scroll(float _dx, float _dy);
	void incRadius(float dr);
	void setCentre(float _x, float _y);
  //@}
  
	/// Obdelnik, ve kterem se muze kamera pohybovat.
  //@{
	float xmin;
  float xmax;
  float ymin;
  float ymax;
  //@}

  friend class TguiMap;
  friend class TMainCameraController;
};




} // namespace;
#endif
/******************************************************************************/