Game.h

#ifndef __Game__
#define __Game__

#include<SDL2/SDL.h>
#include<SDL2/SDL_image.h>
#include <iostream>
#include <string>
#include <map>
#include <vector>
#include "Enemy.h"
#include "Game.h"
#include "GameObject.h"
#include "InputHandler.h"
#include "Player.h"
#include "TextureManager.h"
#include "Vector2d.h"

class Game
{
    public:
    Game(){}
    ~Game(){}

    // simply set the running variable to true
    bool init(const char* title, int xpos, int ypos, int width,
    int height, int flags);
    void draw(SDL_Renderer*);
    void render();
    void update();
    void handleEvents();
    void clean();
    void quit();

    // a function to access the private running variable
    bool running() { return m_bRunning; }

    SDL_Renderer* getRenderer() const { return m_pRenderer; }

    static Game* Instance()
    {
        if (s_pInstance == 0)
        {
            s_pInstance = new Game();
            return s_pInstance;
        }
        return s_pInstance;
    }

    static Game *s_pInstance;

    private:

    SDL_Window* m_pWindow = 0;
    SDL_Renderer* m_pRenderer = 0;
    SDL_Surface* pTempSurface = 0;
    SDL_Texture* m_pTexture = 0;
    SDL_Rect m_sourceRectangle;
    SDL_Rect m_destinationRectangle;

    bool m_bRunning;

    int m_currentFrame;

    GameObject *m_go;
    GameObject *mplayer;

    std::vector<GameObject*> m_gameObjects;

};

typedef Game TheGame;

#endif /*defined(__Game__) */