NazaraEngine/tests/Nazara/Math/Box.cpp

114 lines
3.5 KiB
C++

#include <Nazara/Math/Box.hpp>
#include <Catch/catch.hpp>
SCENARIO("Box", "[MATH][BOX]")
{
GIVEN("Two zero boxes")
{
NzBoxf firstZero(NzBoxf::Zero());
NzBoxf secondZero(NzVector3f::Zero(), NzVector3f::Zero());
WHEN("We multiply them")
{
firstZero = firstZero * 1.f;
secondZero = secondZero * NzVector3f::Unit() * 3.f;
THEN("They should stay the same")
{
REQUIRE(firstZero == secondZero);
CHECK(!firstZero.IsValid());
CHECK(!secondZero.IsValid());
}
}
}
GIVEN("Two unit and center boxes")
{
NzBoxf firstCenterAndUnit(NzRectf(NzVector2f::Zero(), NzVector2f::Unit()));
NzBoxf secondCenterAndUnit(1.f, 1.f, 1.f);
WHEN("We ask for some informations")
{
THEN("These results are expected")
{
REQUIRE(firstCenterAndUnit.GetBoundingSphere() == NzSpheref(NzVector3f::Unit() * 0.5f, std::sqrt(3.f * 0.5f * 0.5f)));
REQUIRE(firstCenterAndUnit.GetCenter() == (NzVector3f::Unit() * 0.5f));
REQUIRE(firstCenterAndUnit.GetCorner(nzBoxCorner_FarLeftTop) == NzVector3f::UnitY());
REQUIRE(firstCenterAndUnit.GetLengths() == NzVector3f::Unit());
REQUIRE(firstCenterAndUnit.GetMaximum() == NzVector3f::Unit());
REQUIRE(firstCenterAndUnit.GetMinimum() == NzVector3f::Zero());
REQUIRE(firstCenterAndUnit.GetNegativeVertex(NzVector3f::Unit()) == NzVector3f::Zero());
REQUIRE(firstCenterAndUnit.GetPosition() == NzVector3f::Zero());
REQUIRE(firstCenterAndUnit.GetPositiveVertex(NzVector3f::Unit()) == NzVector3f::Unit());
REQUIRE(firstCenterAndUnit.GetRadius() == Approx(std::sqrt(3.f * 0.5f * 0.5f)));
REQUIRE(firstCenterAndUnit.GetSquaredBoundingSphere() == NzSpheref(NzVector3f::Unit() * 0.5f, 3.f * 0.5f * 0.5f));
REQUIRE(firstCenterAndUnit.GetSquaredRadius() == Approx(3.f * 0.5f * 0.5f));
}
}
WHEN("We ask for the intersection between the two")
{
THEN("We should have a center and unit")
{
NzBoxf thirdCenterAndUnit;
CHECK(firstCenterAndUnit.Intersect(secondCenterAndUnit, &thirdCenterAndUnit));
REQUIRE(firstCenterAndUnit == secondCenterAndUnit);
}
}
WHEN("We use the constructor of conversion")
{
THEN("Shouldn't be a problem")
{
NzBoxf tmp(NzBoxi(0, 0, 0, 1, 1, 1));
REQUIRE(tmp == firstCenterAndUnit);
}
}
}
GIVEN("Two wrong box (negative width, height and depth")
{
NzBoxf firstWrongBox(-NzVector3f::Unit());
NzBoxf secondWrongBox(-NzVector3f::Unit());
WHEN("We check if valid")
{
THEN("Result if false")
{
CHECK(!firstWrongBox.IsValid());
CHECK(!secondWrongBox.IsValid());
}
}
WHEN("We correct them")
{
firstWrongBox.ExtendTo(NzVector3f::Unit());
secondWrongBox.Transform(NzMatrix4f::Scale(-NzVector3f::Unit()));
THEN("They should be valid")
{
CHECK(firstWrongBox.IsValid());
CHECK(secondWrongBox.IsValid());
}
AND_WHEN("We ask if they contain boxes")
{
THEN("These results are expected")
{
CHECK(firstWrongBox.Contains(0.f, 0.f, 0.f));
CHECK(secondWrongBox.Contains(0.f, 0.f, 0.f));
secondWrongBox = secondWrongBox.Lerp(NzBoxf::Zero(), secondWrongBox, 0.f); // Zeroed
secondWrongBox.ExtendTo(NzBoxf(NzVector3f(0.1f, 0.1f, 0.1f), NzVector3f(0.9f, 0.9f, 0.9f)));
secondWrongBox.Translate(NzVector3f(0.05f, 0.05f, 0.05f)); // Box 0.15 to 0.95
CHECK(firstWrongBox.Contains(secondWrongBox));
NzBoxf test(1.f, -500.f, -500.f, 1000.f, 1000.f, 1000.f);
CHECK(test.Contains(NzBoxf(500.f, -0.5f, -0.5f, 1.f, 1.f, 1.f)));
CHECK(test.Contains(500.f, 0.f, 0.f));
}
}
}
}
}