libcruft-util/test/geom/aabb.cpp

#include "geom/aabb.hpp"
#include "geom/ray.hpp"

#include "tap.hpp"

#include <tuple>


int
main (int, char**)
{
    util::TAP::logger tap;

    {


        static struct {
            util::point2f lo;
            util::point2f hi;

            util::point2f base;
            util::vector2f direction;

            float distance;

            const char *message;
        } const TESTS[] {
            {
                { 1, 1 }, { 9, 9 },
                { 2, 2 }, { 1/std::sqrt (2.f), 1/std::sqrt (2.f) },
                std::sqrt (7.f * 7 * 2),
                "ray doesn't give negative distance to closest edge"
            }
        };

        for (auto const &t: TESTS) {
            util::geom::aabb2f const shape (t.lo, t.hi);
            util::geom::ray2f const r {t.base, t.direction};
            tap.expect_eq (distance (r, shape), t.distance, "%!", t.message);
        }
    };


    return tap.status ();
}