src/backend/RenderSystem.h

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#ifndef RENDERSYSTEM_H
#define RENDERSYSTEM_H

#include <boost/shared_ptr.hpp>
                
namespace green
{
        class RenderSystem
        {
                protected:
                        class Color
                        {
                                public:
                                        inline
                                        void Set(double _r, double _g, double _b, double _a) {
                                                r = _r; g = _g; b = _b; a = _a;
                                        }
                                        double r, g, b, a;      
                        };
                        Color mClearColor;
                        Color mCurrentColor;
                        
                public:

                        virtual ~RenderSystem() {}
                        
                        virtual void Init() {}
                        
                        virtual void StartFrame() {}
                        
                        virtual void FinishFrame() {}
                        
                        enum Graphic { SHIP, ASTEROID, BULLET };
                        
                        virtual void DrawObject(Graphic object, double x, double y, double rot) {}
                        
                        inline
                        virtual void SetColor(double r, double g, double b, double a) {
                                mCurrentColor.Set(r, g, b, a);
                        }
                        
                        inline
                        virtual void SetClearColor(double r, double g, double b, double a) {
                                mClearColor.Set(r, g, b, a);
                        }
                        
                        inline
                        virtual void Reshape(int width, int height) {}
                        
        };
        typedef boost::shared_ptr<RenderSystem> RenderSystemPtr;
}
                
#endif

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