124 lines
3.9 KiB
C++
124 lines
3.9 KiB
C++
#include <Nazara/Math/Ray.hpp>
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#include <catch2/catch_approx.hpp>
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#include <catch2/catch_test_macros.hpp>
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SCENARIO("Ray", "[MATH][RAY]")
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{
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GIVEN("Two same Rays (0, 0, 0) -> (0, 1, 0)")
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{
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Nz::Rayf ray(Nz::Ray<int>(Nz::Plane<int>::XY(), Nz::Plane<int>::YZ()));
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Nz::Rayf secondRay(0.f, 0.f, 0.f, 0.f, 1.f, 0.f);
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WHEN("We compare them")
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{
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THEN("They are the same and Y axis")
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{
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REQUIRE(ray == secondRay);
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REQUIRE(ray == Nz::Rayf::AxisY());
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}
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}
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WHEN("We ask for the closest point")
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{
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THEN("The point that is multiple on the Nz::Ray, is at multiple")
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{
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REQUIRE(ray.ClosestPoint(secondRay.GetPoint(1.f)) == Catch::Approx(1.f));
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}
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}
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WHEN("We ask for intersection")
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{
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THEN("For the Box collision's")
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{
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float tmpClosest;
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float tmpFurthest;
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REQUIRE(ray.Intersect(Nz::Boxf(-0.5f, 1.f, -0.5f, 1.f, 1.f, 1.f), &tmpClosest, &tmpFurthest));
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CHECK(ray.GetPoint(tmpClosest) == Nz::Vector3f::UnitY());
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CHECK(ray.GetPoint(tmpFurthest) == (Nz::Vector3f::UnitY() * 2.f));
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REQUIRE(!ray.Intersect(Nz::Boxf(-10.f, 1.f, -10.f, 1.f, 1.f, 1.f), &tmpClosest, &tmpFurthest));
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}
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THEN("For the Nz::Plane collision's")
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{
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float tmpHit = -1.f;
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REQUIRE(ray.Intersect(Nz::Planef(Nz::Vector3f::UnitY(), 1.f), &tmpHit));
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CHECK(ray.GetPoint(tmpHit) == Nz::Vector3f::UnitY());
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REQUIRE(ray.Intersect(Nz::Planef::XZ(), &tmpHit));
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CHECK(ray.GetPoint(tmpHit) == Nz::Vector3f::Zero());
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REQUIRE(ray.Intersect(Nz::Planef(Nz::Vector3f::UnitY(), 2.f), &tmpHit));
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CHECK(ray.GetPoint(tmpHit) == 2.f * Nz::Vector3f::UnitY());
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CHECK(!ray.Intersect(Nz::Planef(Nz::Vector3f::UnitX(), 1.f)));
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}
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THEN("For the Sphere collision's")
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{
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float tmpClosest;
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float tmpFurthest;
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CHECK(ray.Intersect(Nz::Spheref(Nz::Vector3f::UnitY(), 0.1f), &tmpClosest, &tmpFurthest));
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REQUIRE(ray.GetPoint(tmpClosest) == Nz::Vector3f::UnitY() * 0.9f);
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REQUIRE(ray.GetPoint(tmpFurthest) == (Nz::Vector3f::UnitY() * 1.1f));
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CHECK(!ray.Intersect(Nz::Spheref(Nz::Vector3f::UnitX(), 0.9f)));
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}
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THEN("For the OBB collision's")
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{
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float tmpClosest;
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float tmpFurthest;
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Nz::OrientedBoxf obb(-0.5f, 1.f, -0.5f, 1.f, 1.f, 1.f);
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obb.Update(Nz::Matrix4f::Rotate(Nz::EulerAnglesf(0.f, 90.f, 0.f).ToQuaternion()));
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CHECK(ray.Intersect(obb, &tmpClosest, &tmpFurthest));
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REQUIRE(ray.GetPoint(tmpClosest) == Nz::Vector3f::UnitY());
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REQUIRE(ray.GetPoint(tmpFurthest) == (Nz::Vector3f::UnitY() * 2.f));
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obb = Nz::OrientedBoxf(-10.f, 1.f, -10.f, 1.f, 1.f, 1.f);
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obb.Update(Nz::Matrix4f::Rotate(Nz::EulerAnglesf(0.f, 0.f, 90.f).ToQuaternion()));
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CHECK(!ray.Intersect(obb, &tmpClosest, &tmpFurthest));
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}
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THEN("For the bounding volume collision's")
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{
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Nz::BoundingVolumef nullVolume(Nz::Extend::Null);
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CHECK(!ray.Intersect(nullVolume));
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float tmpClosest = -1.f;
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float tmpFurthest = -1.f;
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Nz::BoundingVolumef infiniteVolume(Nz::Extend::Infinite);
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CHECK(ray.Intersect(infiniteVolume, &tmpClosest, &tmpFurthest));
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CHECK(tmpClosest == Catch::Approx(0.f));
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CHECK(tmpFurthest == std::numeric_limits<float>::infinity());
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}
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THEN("For the triangle collision's")
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{
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Nz::Vector3f firstPoint(0.f, 1.f, 1.f);
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Nz::Vector3f secondPoint(-1.f, 1.f, -1.f);
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Nz::Vector3f thidPoint(1.f, 1.f, -1.f);
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float tmpHit = -1.f;
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CHECK(ray.Intersect(firstPoint, secondPoint, thidPoint, &tmpHit));
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REQUIRE(ray.GetPoint(tmpHit) == Nz::Vector3f::UnitY());
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Nz::Vector3f offset = Nz::Vector3f(10.f, 0.f, 10.f);
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CHECK(!ray.Intersect(firstPoint + offset, secondPoint + offset, thidPoint + offset, &tmpHit));
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}
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}
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WHEN("We try to lerp")
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{
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THEN("Compilation should be fine")
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{
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Nz::Rayf AxisX = Nz::Rayf::AxisX();
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Nz::Rayf AxisY = Nz::Rayf::AxisY();
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REQUIRE(Nz::Rayf::Lerp(AxisX, AxisY, 0.5f) == (Nz::Rayf(Nz::Vector3f::Zero(), Nz::Vector3f(0.5f, 0.5f, 0.f))));
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}
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}
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}
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}
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