Sphere.h

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/*
 * Copyright (C) <2012> <EDF-R&D> <FRANCE>
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef SPHERE_H
#define SPHERE_H
 
#include "Shape.h"
 
class Sphere : public Shape
{
 
public:
    Sphere() : Shape()
    {
        position = vec3(0.0, 0.0, 0.0);
        radius = 0.;
    }
    Sphere(vec3 pos, decimal r) : Shape()
    {
        position = vec3(pos);
        radius = r;
 
        setBBox();
    }
    Sphere(Sphere* other) : Shape(other)
    {
        position = vec3(other->position);
        radius = other->radius;
        box = other->box;
    }
    virtual Shape* Clone()
    {
        Sphere* newShape = new Sphere(this);
        return newShape;
    }
    Sphere(const Sphere& other) : Shape(other)
    {
        position = vec3(other.position);
        radius = other.radius;
        box = other.box;
    }
    virtual bool getIntersection(Ray& ray, Intersection& inter);
    void setRadius(decimal _radius)
    {
        radius = _radius;
        setBBox();
    }
    decimal getRadius()
    {
        return radius;
    }
    void setPosition(const vec3& _position)
    {
        position = _position;
        setBBox();
    }
    vec3 getPosition()
    {
        return position;
    }
    virtual int form()
    {
        return SPHERE;
    }
 
protected:
    vec3 position;  
    decimal radius; 
 
    void setBBox()
    {
        box = BBox(vec3(position.x - radius, position.y - radius, position.z - radius),
                   vec3(position.x + radius, position.y + radius, position.z + radius));
    }
};
 
#endif