#ifndef Game_h__
#define Game_h__

#include "Entity.h"
#include "IPhysicsWorld.h"
#include "World.h"
#include "InputSystemOIS.h"
#include "script/ScriptSystem.h"
#include <GUIManager.h>
#include <CGUIRenderer.h>
#include <IRenderWindow.h>
#include "CGUIDataManager.h"


namespace LifeGame
{

#define MAX_FPS_COUNTER 100

    class Game
    {
    protected:
        LifeCore::DisplayMode* modes;

        IPhysicsWorld* physicsWorld;
        LifeGraphics::LifeEngine* pGraphics;
        LifeCore::IRenderWindow* output;
        int mainWindow;

        World* gameWorld;
        float gameTime;

        bool bRunning;
        bool customWindow;
        LifeCore::InputSystemOIS* input;
        int frameCounter;

        ScriptSystem* pScriptSystem;
        CGUIRenderer* gui_renderer;
        LifeGUI::GUIManager* gui_manager;

    public:

        Game();

        LifeCore::IRenderWindow* GetWindow()
        {
            return output;
        }
        void DrawDebug()
        {
            physicsWorld->CompileDebug();
            pGraphics->debugDrawer->Render();
            pGraphics->debugDrawer->Flush();
        }
        LifeGraphics::LifeEngine* GetGraphics()
        {
            return pGraphics;
        }
        IPhysicsWorld* GetPhysics()
        {
            return physicsWorld;
        }
        void InitVideo(LifeGraphics::RENDERER_TYPE renderer, int width, int height)
        {
            pGraphics = new LifeGraphics::LifeEngine();
            pGraphics->Init(renderer, LifeGraphics::RenderParams(false, false));
            physicsWorld->SetDebugDrawer(pGraphics->debugDrawer);
            LifeGUI::GUIManager::me()->Init(new CGUIRenderer(pGraphics->GetRenderer()), new CGUIDataManager());
        }
        void SetResourcesPath(const String& path)
        {
            LifeGraphics::ResourceManager::me()->SetCentralDirectory(path);
        }
        void SetWindow(RenderWindowWin* window)
        {
            output = window;
        }
        void SetWindow(int width, int height)
        {
            output = new RenderWindowWin();
            output->SetSize(width, height);
        }
        void InitInput(int screenWidth, int screenHeight, LifeCore::IRenderWindow* wnd)
        {
            input = new LifeCore::InputSystemOIS();
            input->Init(wnd->GetWidth(), wnd->GetHeight(), false, wnd->GetWindowHandle());
        }
        LifeCore::IInputSystem* GetInput()
        {
            return input;
        }
        int Run()
        {
            bRunning = true;
            while(IsRunning())
            {
                process();
                Sleep(0);
            }
            return 0;
        }
        bool IsRunning()
        {
            return bRunning;
        }
        void Exit()
        {
            bRunning = false;
        }

        virtual ~Game()
        {
            SAFE_DELETE(physicsWorld);
        }
        World* GetWorld()
        {
            return gameWorld;
        }

        void processWorld(World* world){
            input->Capture();

            world->Update(0.001f);
            world->Render();
            DrawDebug();

            world->GetOutput()->GetSwapChain()->Present();
            world->GetOutput()->GetWindow()->Update();
        }

        void process()
        {

            gameTime += pGraphics->GetTimeElapsed();

            //pGraphics->GetRenderer()->ClearBuffers(CF_COLOR_TARGET | CF_DEPTH_BUFFER, 0xffff00, 1, 0);

            //stateManager.Update(); //to world
            // stateManager.Render();

            frameCounter++;

            avgFps[fcPos++] = 1.0f / GetGraphics()->GetTimeElapsed();

            if(fcPos >= MAX_FPS_COUNTER)
            {
                fcPos = 0;
                fps = 0.0f;
                for(int i = 0; i<MAX_FPS_COUNTER; i++)
                {
                    fps += avgFps[i];
                }
                fps /= (float)MAX_FPS_COUNTER;
                printf("FPS: %f\n", fps);
            }


        }
    private:
        float fps;
        float avgFps[MAX_FPS_COUNTER];
        int fcPos;
    };
}

#endif // LifeGame_h__