Polygon.hpp

#ifndef MYGL_POLYGON
#define MYGL_POLYGON
 
#include "../mygl_export.h"
 
#include "AbstractShape.hpp"
 
#include <unordered_map>
#include <vector>
 
namespace my
{
    class Polygon : public AbstractShape
    {
    private:
        struct GLinfo {
            unsigned int vao;
            unsigned int vbo;
            unsigned int ebo;
            std::vector<float> vertices;
            std::vector<unsigned int> indices;
        };
 
        static std::unordered_map<unsigned int, const GLinfo> buffers;
        unsigned int m_sides;
        const GLinfo* p_buffer;
 
        static void computeVertices(unsigned int sides, GLinfo& buffer);
 
        static void glInit(unsigned int sides);
 
        virtual std::vector<glm::vec2> points() const override;
 
    public:
        MYGL_EXPORT Polygon();
 
        MYGL_EXPORT Polygon(unsigned int sides, int radius);
 
        MYGL_EXPORT Polygon(unsigned int sides, int radius, int x, int y);
 
        MYGL_EXPORT ~Polygon() override;
 
        MYGL_EXPORT void setSides(unsigned int sides);
 
        MYGL_EXPORT virtual void draw(const glm::mat4& lookAt, const glm::mat4& projection) const override;
    };
 
} // namespace my
 
#endif // MYGL_POLYGON