light.h

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#ifndef VART_LIGHT_H
#define VART_LIGHT_H

#include "vart/point4d.h"
#include "vart/color.h"
#include "vart/scenenode.h"
#include "vart/transform.h"
#include <string>

namespace VART {
    class BoundingBox;
    class Light : public SceneNode {
        public:
            Light();
            Light(const Light& light);
            Light(float i, float ai, Color c, bool o);
            Light(const std::string& newDescription, float newIntensity,
                    float newAmbientIntensity, const Color& newColor,
                    const Point4D& newLocation);
            virtual ~Light();
            virtual SceneNode * Copy();
            Light& operator=(const Light& light);
            void SetIntensity(float i);
            float GetIntensity() const;
            void SetAmbientIntensity(float ai);
            float GetAmbientIntensity() const;
            void SetColor(const Color& c);
            Color GetColor() const;
            void Turn(bool on_off);
            bool IsOn() const;

            virtual bool RecursiveBoundingBox(BoundingBox* bBox);


            void SetLocation(const Point4D& newLocation);
            Point4D GetLocation() const { return location; }


            Transform* GetTransform() const { return transform; }

            virtual bool DrawOGL(unsigned int oglLightID) const;

            virtual void DrawForPicking() const {};

        // CLASS CONSTANT INITIALIZERS
            static const Light& SUN();
            static const Light& BRIGHT_AMBIENT();
        protected:
            unsigned int getOpenGLID(unsigned int lightID) const;

        private:
            float intensity;
            float ambientIntensity;
            Color color;
            bool on;
        protected:
            Transform *transform;
            Point4D location; //unified representation of location/direction.
    }; // end class declaration
} // end namespace
#endif  // VART_LIGHT_H