IGraphicsEngineRenderer.hpp

#ifndef GRAPHICS_ENGINE_RENDERER_HPP
#define GRAPHICS_ENGINE_RENDERER_HPP
// ==================== Libraries ==================
// Depending on the operating system we use
// The paths to SDL are actually different.
// The #define statement should be passed in
// when compiling using the -D argument.
// This gives an example of how a programmer
// may support multiple platforms with different
// dependencies.
//
// Note that your path may be different depending on where you intalled things
//
//
#if defined(LINUX) || defined(MINGW)
#include <SDL2/SDL.h>
#else // This works for Mac
 
#include <SDL.h>
 
#endif
 
class IGraphicsEngineRenderer {
public:
    IGraphicsEngineRenderer(int w, int h) : mScreenWidth(w), mScreenHeight(h) {};
 
    virtual ~IGraphicsEngineRenderer() {};
 
    virtual void SetRenderDrawColor(int r, int g, int b, int a) = 0;
 
    virtual void RenderClear() = 0;
 
    virtual void RenderPresent() = 0;
 
protected:
    // Screen dimension constants
    int mScreenWidth{0};
    int mScreenHeight{0};
};
 
 
class SDLGraphicsEngineRenderer : public IGraphicsEngineRenderer {
public:
    SDLGraphicsEngineRenderer(int w, int h);
 
    ~SDLGraphicsEngineRenderer();
 
    void SetRenderDrawColor(int r, int g, int b, int a) override;
 
    void RenderClear() override;
 
    void RenderPresent() override;
 
    SDL_Window *GetWindow();
 
    SDL_Renderer *GetRenderer();
 
private:
    // SDL Window
    SDL_Window *mWindow = nullptr;
    // SDL Renderer
    SDL_Renderer *mRenderer = nullptr;
};
 
#endif