Sphere.h

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#ifndef GlobeEngine_Sphere_h
#define GlobeEngine_Sphere_h

#include "OpenGL_Includes.h"
#include "DrawableComponent.h"
#include "Texture.h"
#include <math.h>
#include "Common.h"

namespace ge {
    class Sphere : public ge::DrawableComponent
    {
    public:
        Sphere();
        ~Sphere();
        void clear() override;
        void create() override {
            this->create(100, 100);
        };
        void create(int _vertCircles, int _pointsPerCircle);

        void update() override;
        void draw(std::shared_ptr<ge::Camera> _cam) override;

        void setAlpha(GLfloat _alpha);
        void setAmbient(vmml::Vector4f _ambient);
        void setDiffuse(vmml::Vector4f _diffuse);
        void setSpectrumColor(vmml::Vector4f _spectrumColor);

        virtual void setRotation(vmml::Vector3d _rotations)  override;

        // static methods for spheres
        static vmml::Vector3d convertPolarToEuclidean(double _theta, double _phi);
        // returns a vector with x = theta and y = phi 
        // based on the coordinate and the radius of the sphere
        static vmml::Vector2d convertEucledianToPolar(vmml::Vector3d _in, double _radius);

        void setLightPosition(vmml::Vector3d _position);

    protected:
        GLfloat alpha;
        vmml::Vector4f ambient;
        vmml::Vector4f diffuse;
        vmml::Vector3d lightPosition;
        vmml::Vector4f spectrumColor;

        int vertCircles;
        int pointsPerCircle;
    };
}
#endif