Camera.hxx

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#ifndef CAMERA_HXX_
#define CAMERA_HXX_
 
#include "Point.hxx"
#include "../../util/Singleton.hxx"
 
#include <SDL.h>
 
class Camera : public Singleton<Camera>
{
  friend Singleton;
 
public:
  void centerScreenOnPoint(const Point &isoCoordinates);
 
  void centerScreenOnMapCenter();
 
  void increaseZoomLevel();
 
  void decreaseZoomLevel();
 
  inline void changeZoomLevel(bool inc) { inc ? increaseZoomLevel() : decreaseZoomLevel(); }
 
  void setPinchDistance(float pinchDistance, int isoX, int isoY);
 
  void moveCamera(int xOffset, int yOffset);
  void canMove(bool move) { m_canMove = move; }
 
  const SDL_Point &cameraOffset() const noexcept;
  const double &zoomLevel() const noexcept;
  const SDL_Point &tileSize() const noexcept;
 
  void canScale(bool value) { m_canScale = value; }
 
private:
  Camera() = default;
  ~Camera() = default;
 
  float m_PinchDistance = 0.f;
  SDL_Point m_TileSize{32, 16};
  SDL_Point m_CameraOffset{0, 0};
  double m_ZoomLevel = 1.0; 
  bool m_canScale = true;
  bool m_canMove = true;
  Point m_CenterIsoCoordinates;
};
 
#endif