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#pragma once
#include <stack>
#include "Singleton.h"
#include "Platform.h"
#include "graphics/Graphics.h"
#include "Window.h"
namespace ui
{
class Window;
/* class Engine
*
* Controls the User Interface.
* Send user inputs to the Engine and the appropriate controls and components will interact.
*/
class Engine: public Singleton<Engine>
{
public:
Engine();
~Engine();
void ShowWindow(Window * window);
void CloseWindow();
void onMouseMove(int x, int y);
void onMouseClick(int x, int y, unsigned button);
void onMouseUnclick(int x, int y, unsigned button);
void onMouseWheel(int x, int y, int delta);
void onKeyPress(int key, Uint16 character, bool shift, bool ctrl, bool alt);
void onKeyRelease(int key, Uint16 character, bool shift, bool ctrl, bool alt);
void onResize(int newWidth, int newHeight);
void onClose();
void Begin(int width, int height);
inline bool Running() { return running_; }
void Exit();
void Tick();
void Draw();
void SetFps(float fps);
inline float GetFps() { return fps; };
inline int GetMouseX() { return mousex_; }
inline int GetMouseY() { return mousey_; }
inline int GetWidth() { return width_; }
inline int GetHeight() { return height_; }
inline void SetSize(int width, int height);
//void SetState(Window* state);
//inline State* GetState() { return state_; }
inline Window* GetWindow() { return state_; }
float FpsLimit;
Graphics * g;
unsigned int FrameIndex;
private:
float dt;
float fps;
pixel * lastBuffer;
std::stack<pixel*> prevBuffers;
std::stack<Window*> windows;
//Window* statequeued_;
Window* state_;
Point windowTargetPosition;
float windowOpenState;
bool running_;
int mousex_;
int mousey_;
int mousexp_;
int mouseyp_;
int width_;
int height_;
};
}
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