#include "common.h"

#include "container.h"

void Container::addShape(Shape* aShape)

{

        shapes.push_back(aShape);

        if (shapes.size() == 0) {

                /* initialize bounding box */

                bbox = aShape->get_bbox();

        } else {

                /* adjust bounding box */

                BBox shapebb = aShape->get_bbox();

                if (shapebb.L.x < bbox.L.x)  bbox.L.x = shapebb.L.x;

                if (shapebb.L.y < bbox.L.y)  bbox.L.y = shapebb.L.y;

                if (shapebb.L.z < bbox.L.z)  bbox.L.z = shapebb.L.z;

                if (shapebb.H.x > bbox.H.x)  bbox.H.x = shapebb.H.x;

                if (shapebb.H.y > bbox.H.y)  bbox.H.y = shapebb.H.y;

                if (shapebb.H.z > bbox.H.z)  bbox.H.z = shapebb.H.z;

        }

};

Shape *Container::nearest_intersection(const Shape *origin_shape, const Ray &ray,

        Float &nearest_distance)

{

        Shape *nearest_shape = NULL;

        ShapeList::iterator shape;

        for (shape = shapes.begin(); shape != shapes.end(); shape++)

                if (*shape != origin_shape && (*shape)->intersect(ray, nearest_distance))

                        nearest_shape = *shape;

        return nearest_shape;

}