58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
#include "geom/aabb.hpp"
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#include "geom/ray.hpp"
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#include "tap.hpp"
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#include <tuple>
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int
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main (int, char**)
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{
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util::TAP::logger tap;
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{
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const auto upright = normalised (util::vector2f {1});
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static struct {
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util::point2f lo;
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util::point2f hi;
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util::point2f base;
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util::vector2f direction;
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float distance;
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const char *message;
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} const TESTS[] {
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{
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{ 0, 0 }, { 1, 1 },
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{ 0, 0 }, upright,
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std::sqrt (2.f),
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"ray on aabb corner, pointing to opposite corner",
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},
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{
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{ 0, 0 }, { 1, 1 },
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{ 0, 1 }, upright,
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INFINITY,
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"ray on aabb implied corner, pointing away",
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},
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{
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{ 1, 1 }, { 9, 9 },
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{ 2, 2 }, upright,
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std::sqrt (7.f * 7 * 2),
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"ray inside aabb, close to one corner and pointing to far corner",
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},
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};
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for (auto const &t: TESTS) {
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util::geom::aabb2f const shape (t.lo, t.hi);
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util::geom::ray2f const r {t.base, t.direction};
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tap.expect_eq (distance (r, shape), t.distance, "%!", t.message);
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}
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};
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return tap.status ();
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}
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