NazaraEngine/tests/Engine/Math/Vector3.cpp

57 lines
1.3 KiB
C++

#include <Nazara/Math/Vector3.hpp>
#include <Catch/catch.hpp>
#include <Nazara/Math/Vector4.hpp>
SCENARIO("Vector3", "[MATH][VECTOR3]")
{
GIVEN("Two same unit vector")
{
NzVector3f firstUnit(1.f, 1.f, 1.f);
NzVector3f secondUnit(NzVector3i(NzVector4i(1, 1, 1, 5)));
WHEN("We compare them")
{
THEN("They are the same")
{
REQUIRE(firstUnit == secondUnit);
}
}
WHEN("We test the dot product")
{
NzVector3f tmp(-1.f, 0.f, 1.f);
THEN("These results are expected")
{
REQUIRE(firstUnit.AbsDotProduct(tmp) == Approx(2.f));
REQUIRE(firstUnit.DotProduct(tmp) == Approx(0.f));
REQUIRE(firstUnit.AngleBetween(tmp) == Approx(90.f));
}
}
WHEN("We test the cross product")
{
THEN("These results are expected")
{
REQUIRE(NzVector3f::CrossProduct(NzVector3f::UnitX(), NzVector3f::UnitY()) == NzVector3f::UnitZ());
REQUIRE(NzVector3f::CrossProduct(NzVector3f(1.f, 2.f, 3.f), NzVector3f(3.f, 2.f, 1.f)) == NzVector3f(-4.f, 8.f, -4.f));
}
}
WHEN("We ask for distance")
{
NzVector3f tmp(-1.f, -5.f, -8.f);
THEN("These are expected")
{
REQUIRE(firstUnit.Distance(tmp) == Approx(11.f));
REQUIRE(firstUnit.SquaredDistance(tmp) == Approx(121.f));
REQUIRE(firstUnit.GetSquaredLength() == Approx(3.f));
REQUIRE(firstUnit.GetLength() == Approx(std::sqrt(3.f)));
}
}
}
}