Sphere.h

#ifndef __SPHERE__
#define __SPHERE__

#include "GeometricObject.h"

class Sphere: public GeometricObject{

	public:

		Sphere(void);

		Sphere(Point3D center, double r);

		Sphere(const Sphere& sphere);

		virtual Sphere* clone(void) const;

		virtual ~Sphere(void);

		Sphere& operator= (const Sphere& sphere);

		void set_center(const Point3D& c);

		void set_center(const double x, const double y, const double z);

		void set_radius(const double r);

		virtual bool hit(const Ray& ray, double& t, ShadeRec& s) const;

		virtual bool shadow_hit(const Ray& ray, float& tmin) const;

		virtual void set_color(float r, float g, float b);

		virtual RGBColor get_color() const;

	private:

		Point3D center;
		double radius;

		static const double kEpsilon;
};

inline void Sphere::set_center(const Point3D& c) {
	center = c;
}

inline void Sphere::set_center(const double x, const double y, const double z) {
	center.x = x;
	center.y = y;
	center.z = z;
}

inline void Sphere::set_radius(const double r) {
	radius = r;
}

inline void Sphere::set_color(float r, float g, float b) {

	temp_color.r = r;
	temp_color.g = g;
	temp_color.b = b;
}

inline RGBColor Sphere::get_color() const {
	return (temp_color);
}

#endif