diff --git a/include/omath/engines/frostbite_engine/formulas.hpp b/include/omath/engines/frostbite_engine/formulas.hpp index 89a9274..49df685 100644 --- a/include/omath/engines/frostbite_engine/formulas.hpp +++ b/include/omath/engines/frostbite_engine/formulas.hpp @@ -23,4 +23,52 @@ namespace omath::frostbite_engine [[nodiscard]] Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept; -} // namespace omath::unity_engine + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_centimeters(const FloatingType& units) + { + return units / static_cast(100); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_meters(const FloatingType& units) + { + return units; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_kilometers(const FloatingType& units) + { + return units_to_meters(units) / static_cast(1000); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType centimeters_to_units(const FloatingType& centimeters) + { + return centimeters * static_cast(100); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType meters_to_units(const FloatingType& meters) + { + return meters; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType kilometers_to_units(const FloatingType& kilometers) + { + return meters_to_units(kilometers * static_cast(1000)); + } +} // namespace omath::frostbite_engine diff --git a/include/omath/engines/iw_engine/formulas.hpp b/include/omath/engines/iw_engine/formulas.hpp index 433987d..849f02c 100644 --- a/include/omath/engines/iw_engine/formulas.hpp +++ b/include/omath/engines/iw_engine/formulas.hpp @@ -23,4 +23,54 @@ namespace omath::iw_engine [[nodiscard]] Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept; + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_centimeters(const FloatingType& units) + { + constexpr auto centimeter_in_unit = static_cast(2.54); + return units * centimeter_in_unit; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_meters(const FloatingType& units) + { + return units_to_centimeters(units) / static_cast(100); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_kilometers(const FloatingType& units) + { + return units_to_meters(units) / static_cast(1000); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType centimeters_to_units(const FloatingType& centimeters) + { + constexpr auto centimeter_in_unit = static_cast(2.54); + return centimeters / centimeter_in_unit; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType meters_to_units(const FloatingType& meters) + { + return centimeters_to_units(meters * static_cast(100)); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType kilometers_to_units(const FloatingType& kilometers) + { + return meters_to_units(kilometers * static_cast(1000)); + } } // namespace omath::iw_engine diff --git a/include/omath/engines/opengl_engine/formulas.hpp b/include/omath/engines/opengl_engine/formulas.hpp index 31714f5..ed1547f 100644 --- a/include/omath/engines/opengl_engine/formulas.hpp +++ b/include/omath/engines/opengl_engine/formulas.hpp @@ -4,7 +4,6 @@ #pragma once #include "omath/engines/opengl_engine/constants.hpp" - namespace omath::opengl_engine { [[nodiscard]] @@ -23,4 +22,52 @@ namespace omath::opengl_engine [[nodiscard]] Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept; + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_centimeters(const FloatingType& units) + { + return units / static_cast(100); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_meters(const FloatingType& units) + { + return units; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_kilometers(const FloatingType& units) + { + return units_to_meters(units) / static_cast(1000); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType centimeters_to_units(const FloatingType& centimeters) + { + return centimeters * static_cast(100); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType meters_to_units(const FloatingType& meters) + { + return meters; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType kilometers_to_units(const FloatingType& kilometers) + { + return meters_to_units(kilometers * static_cast(1000)); + } } // namespace omath::opengl_engine diff --git a/include/omath/engines/source_engine/formulas.hpp b/include/omath/engines/source_engine/formulas.hpp index a51a633..e641632 100644 --- a/include/omath/engines/source_engine/formulas.hpp +++ b/include/omath/engines/source_engine/formulas.hpp @@ -22,4 +22,54 @@ namespace omath::source_engine [[nodiscard]] Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept; + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_centimeters(const FloatingType& units) + { + constexpr auto centimeter_in_unit = static_cast(2.54); + return units * centimeter_in_unit; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_meters(const FloatingType& units) + { + return units_to_centimeters(units) / static_cast(100); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_kilometers(const FloatingType& units) + { + return units_to_meters(units) / static_cast(1000); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType centimeters_to_units(const FloatingType& centimeters) + { + constexpr auto centimeter_in_unit = static_cast(2.54); + return centimeters / centimeter_in_unit; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType meters_to_units(const FloatingType& meters) + { + return centimeters_to_units(meters * static_cast(100)); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType kilometers_to_units(const FloatingType& kilometers) + { + return meters_to_units(kilometers * static_cast(1000)); + } } // namespace omath::source_engine diff --git a/include/omath/engines/unity_engine/formulas.hpp b/include/omath/engines/unity_engine/formulas.hpp index be07136..8bdb7b9 100644 --- a/include/omath/engines/unity_engine/formulas.hpp +++ b/include/omath/engines/unity_engine/formulas.hpp @@ -23,4 +23,52 @@ namespace omath::unity_engine [[nodiscard]] Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept; + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_centimeters(const FloatingType& units) + { + return units / static_cast(100); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_meters(const FloatingType& units) + { + return units; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_kilometers(const FloatingType& units) + { + return units_to_meters(units) / static_cast(1000); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType centimeters_to_units(const FloatingType& centimeters) + { + return centimeters * static_cast(100); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType meters_to_units(const FloatingType& meters) + { + return meters; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType kilometers_to_units(const FloatingType& kilometers) + { + return meters_to_units(kilometers * static_cast(1000)); + } } // namespace omath::unity_engine diff --git a/include/omath/engines/unreal_engine/formulas.hpp b/include/omath/engines/unreal_engine/formulas.hpp index 4e601ce..a88f3dc 100644 --- a/include/omath/engines/unreal_engine/formulas.hpp +++ b/include/omath/engines/unreal_engine/formulas.hpp @@ -23,4 +23,52 @@ namespace omath::unreal_engine [[nodiscard]] Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept; + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_centimeters(const FloatingType& units) + { + return units; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_meters(const FloatingType& units) + { + return units / static_cast(100); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType units_to_kilometers(const FloatingType& units) + { + return units_to_meters(units) / static_cast(1000); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType centimeters_to_units(const FloatingType& centimeters) + { + return centimeters; + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType meters_to_units(const FloatingType& meters) + { + return meters * static_cast(100); + } + + template + requires std::is_floating_point_v + [[nodiscard]] + constexpr FloatingType kilometers_to_units(const FloatingType& kilometers) + { + return meters_to_units(kilometers * static_cast(1000)); + } } // namespace omath::unreal_engine diff --git a/tests/engines/unit_test_frostbite_engine.cpp b/tests/engines/unit_test_frostbite_engine.cpp index a10e8c1..7f6a6f3 100644 --- a/tests/engines/unit_test_frostbite_engine.cpp +++ b/tests/engines/unit_test_frostbite_engine.cpp @@ -8,6 +8,125 @@ #include #include +TEST(unit_test_frostbite_engine, UnitsToCentimeters_BasicValues) +{ + EXPECT_FLOAT_EQ(omath::frostbite_engine::units_to_centimeters(0.0f), 0.0f); + EXPECT_FLOAT_EQ(omath::frostbite_engine::units_to_centimeters(1.0f), 0.01f); + EXPECT_FLOAT_EQ(omath::frostbite_engine::units_to_centimeters(100.0f), 1.0f); + EXPECT_FLOAT_EQ(omath::frostbite_engine::units_to_centimeters(-250.0f), -2.5f); +} + +TEST(unit_test_frostbite_engine, UnitsToMeters_BasicValues) +{ + EXPECT_DOUBLE_EQ(omath::frostbite_engine::units_to_meters(0.0), 0.0); + EXPECT_DOUBLE_EQ(omath::frostbite_engine::units_to_meters(1.0), 1.0); + EXPECT_DOUBLE_EQ(omath::frostbite_engine::units_to_meters(123.456), 123.456); + EXPECT_DOUBLE_EQ(omath::frostbite_engine::units_to_meters(-42.0), -42.0); +} + +TEST(unit_test_frostbite_engine, UnitsToKilometers_BasicValues) +{ + EXPECT_NEAR(omath::frostbite_engine::units_to_kilometers(0.0), 0.0, 1e-15); + EXPECT_NEAR(omath::frostbite_engine::units_to_kilometers(1.0), 0.001, 1e-15); + EXPECT_NEAR(omath::frostbite_engine::units_to_kilometers(1000.0), 1.0, 1e-12); + EXPECT_NEAR(omath::frostbite_engine::units_to_kilometers(-2500.0), -2.5, 1e-12); +} + +TEST(unit_test_frostbite_engine, CentimetersToUnits_BasicValues) +{ + EXPECT_FLOAT_EQ(omath::frostbite_engine::centimeters_to_units(0.0f), 0.0f); + EXPECT_FLOAT_EQ(omath::frostbite_engine::centimeters_to_units(0.01f), 1.0f); + EXPECT_FLOAT_EQ(omath::frostbite_engine::centimeters_to_units(1.0f), 100.0f); + EXPECT_FLOAT_EQ(omath::frostbite_engine::centimeters_to_units(-2.5f), -250.0f); +} + +TEST(unit_test_frostbite_engine, MetersToUnits_BasicValues) +{ + EXPECT_DOUBLE_EQ(omath::frostbite_engine::meters_to_units(0.0), 0.0); + EXPECT_DOUBLE_EQ(omath::frostbite_engine::meters_to_units(1.0), 1.0); + EXPECT_DOUBLE_EQ(omath::frostbite_engine::meters_to_units(123.456), 123.456); + EXPECT_DOUBLE_EQ(omath::frostbite_engine::meters_to_units(-42.0), -42.0); +} + +TEST(unit_test_frostbite_engine, KilometersToUnits_BasicValues) +{ + EXPECT_NEAR(omath::frostbite_engine::kilometers_to_units(0.0), 0.0, 1e-12); + EXPECT_NEAR(omath::frostbite_engine::kilometers_to_units(0.001), 1.0, 1e-12); + EXPECT_NEAR(omath::frostbite_engine::kilometers_to_units(1.0), 1000.0, 1e-9); + EXPECT_NEAR(omath::frostbite_engine::kilometers_to_units(-2.5), -2500.0, 1e-9); +} + +TEST(unit_test_frostbite_engine, RoundTrip_UnitsCentimeters) +{ + constexpr float units_f = 12345.678f; + const auto cm_f = omath::frostbite_engine::units_to_centimeters(units_f); + const auto units_f_back = omath::frostbite_engine::centimeters_to_units(cm_f); + EXPECT_NEAR(units_f_back, units_f, 1e-3f); + + constexpr double units_d = -987654.321; + const auto cm_d = omath::frostbite_engine::units_to_centimeters(units_d); + const auto units_d_back = omath::frostbite_engine::centimeters_to_units(cm_d); + EXPECT_NEAR(units_d_back, units_d, 1e-9); +} + +TEST(unit_test_frostbite_engine, RoundTrip_UnitsMeters) +{ + constexpr float units_f = 5432.125f; + constexpr auto m_f = omath::frostbite_engine::units_to_meters(units_f); + constexpr auto units_f_back = omath::frostbite_engine::meters_to_units(m_f); + EXPECT_FLOAT_EQ(units_f_back, units_f); + + constexpr double units_d = -123456.789; + constexpr auto m_d = omath::frostbite_engine::units_to_meters(units_d); + constexpr auto units_d_back = omath::frostbite_engine::meters_to_units(m_d); + EXPECT_DOUBLE_EQ(units_d_back, units_d); +} + +TEST(unit_test_frostbite_engine, RoundTrip_UnitsKilometers) +{ + constexpr float units_f = 100000.0f; + constexpr auto km_f = omath::frostbite_engine::units_to_kilometers(units_f); + constexpr auto units_f_back = omath::frostbite_engine::kilometers_to_units(km_f); + EXPECT_NEAR(units_f_back, units_f, 1e-2f); + + constexpr double units_d = -7654321.123; + constexpr auto km_d = omath::frostbite_engine::units_to_kilometers(units_d); + constexpr auto units_d_back = omath::frostbite_engine::kilometers_to_units(km_d); + EXPECT_NEAR(units_d_back, units_d, 1e-6); +} + +TEST(unit_test_frostbite_engine, ConversionChainConsistency) +{ + const double units = 424242.42; + + const auto cm_direct = omath::frostbite_engine::units_to_centimeters(units); + const auto cm_via_units = units / 100.0; + EXPECT_NEAR(cm_direct, cm_via_units, 1e-12); + + const auto km_direct = omath::frostbite_engine::units_to_kilometers(units); + const auto km_via_meters = omath::frostbite_engine::units_to_meters(units) / 1000.0; + EXPECT_NEAR(km_direct, km_via_meters, 1e-12); +} + +TEST(unit_test_frostbite_engine, SupportsFloatAndDouble) +{ + static_assert(std::is_same_v); + static_assert(std::is_same_v); + static_assert(std::is_same_v); + static_assert(std::is_same_v); +} + +TEST(unit_test_frostbite_engine, ConstexprConversions) +{ + constexpr double units = 1000.0; + constexpr double cm = omath::frostbite_engine::units_to_centimeters(units); + constexpr double m = omath::frostbite_engine::units_to_meters(units); + constexpr double km = omath::frostbite_engine::units_to_kilometers(units); + + static_assert(cm == 10.0, "units_to_centimeters constexpr failed"); + static_assert(m == 1000.0, "units_to_meters constexpr failed"); + static_assert(km == 1.0, "units_to_kilometers constexpr failed"); +} TEST(unit_test_frostbite_engine, ForwardVector) { const auto forward = omath::frostbite_engine::forward_vector({}); diff --git a/tests/engines/unit_test_open_gl.cpp b/tests/engines/unit_test_open_gl.cpp index 48b808b..eb8a8f9 100644 --- a/tests/engines/unit_test_open_gl.cpp +++ b/tests/engines/unit_test_open_gl.cpp @@ -7,6 +7,125 @@ #include #include +TEST(unit_test_opengl, UnitsToCentimeters_BasicValues) +{ + EXPECT_FLOAT_EQ(omath::opengl_engine::units_to_centimeters(0.0f), 0.0f); + EXPECT_FLOAT_EQ(omath::opengl_engine::units_to_centimeters(1.0f), 0.01f); + EXPECT_FLOAT_EQ(omath::opengl_engine::units_to_centimeters(100.0f), 1.0f); + EXPECT_FLOAT_EQ(omath::opengl_engine::units_to_centimeters(-250.0f), -2.5f); +} + +TEST(unit_test_opengl, UnitsToMeters_BasicValues) +{ + EXPECT_DOUBLE_EQ(omath::opengl_engine::units_to_meters(0.0), 0.0); + EXPECT_DOUBLE_EQ(omath::opengl_engine::units_to_meters(1.0), 1.0); + EXPECT_DOUBLE_EQ(omath::opengl_engine::units_to_meters(123.456), 123.456); + EXPECT_DOUBLE_EQ(omath::opengl_engine::units_to_meters(-42.0), -42.0); +} + +TEST(unit_test_opengl, UnitsToKilometers_BasicValues) +{ + EXPECT_NEAR(omath::opengl_engine::units_to_kilometers(0.0), 0.0, 1e-15); + EXPECT_NEAR(omath::opengl_engine::units_to_kilometers(1.0), 0.001, 1e-15); + EXPECT_NEAR(omath::opengl_engine::units_to_kilometers(1000.0), 1.0, 1e-12); + EXPECT_NEAR(omath::opengl_engine::units_to_kilometers(-2500.0), -2.5, 1e-12); +} + +TEST(unit_test_opengl, CentimetersToUnits_BasicValues) +{ + EXPECT_FLOAT_EQ(omath::opengl_engine::centimeters_to_units(0.0f), 0.0f); + EXPECT_FLOAT_EQ(omath::opengl_engine::centimeters_to_units(0.01f), 1.0f); + EXPECT_FLOAT_EQ(omath::opengl_engine::centimeters_to_units(1.0f), 100.0f); + EXPECT_FLOAT_EQ(omath::opengl_engine::centimeters_to_units(-2.5f), -250.0f); +} + +TEST(unit_test_opengl, MetersToUnits_BasicValues) +{ + EXPECT_DOUBLE_EQ(omath::opengl_engine::meters_to_units(0.0), 0.0); + EXPECT_DOUBLE_EQ(omath::opengl_engine::meters_to_units(1.0), 1.0); + EXPECT_DOUBLE_EQ(omath::opengl_engine::meters_to_units(123.456), 123.456); + EXPECT_DOUBLE_EQ(omath::opengl_engine::meters_to_units(-42.0), -42.0); +} + +TEST(unit_test_opengl, KilometersToUnits_BasicValues) +{ + EXPECT_NEAR(omath::opengl_engine::kilometers_to_units(0.0), 0.0, 1e-12); + EXPECT_NEAR(omath::opengl_engine::kilometers_to_units(0.001), 1.0, 1e-12); + EXPECT_NEAR(omath::opengl_engine::kilometers_to_units(1.0), 1000.0, 1e-9); + EXPECT_NEAR(omath::opengl_engine::kilometers_to_units(-2.5), -2500.0, 1e-9); +} + +TEST(unit_test_opengl, RoundTrip_UnitsCentimeters) +{ + constexpr float units_f = 12345.678f; + const auto cm_f = omath::opengl_engine::units_to_centimeters(units_f); + const auto units_f_back = omath::opengl_engine::centimeters_to_units(cm_f); + EXPECT_NEAR(units_f_back, units_f, 1e-3f); + + constexpr double units_d = -987654.321; + const auto cm_d = omath::opengl_engine::units_to_centimeters(units_d); + const auto units_d_back = omath::opengl_engine::centimeters_to_units(cm_d); + EXPECT_NEAR(units_d_back, units_d, 1e-9); +} + +TEST(unit_test_opengl, RoundTrip_UnitsMeters) +{ + constexpr float units_f = 5432.125f; + const auto m_f = omath::opengl_engine::units_to_meters(units_f); + const auto units_f_back = omath::opengl_engine::meters_to_units(m_f); + EXPECT_FLOAT_EQ(units_f_back, units_f); + + constexpr double units_d = -123456.789; + const auto m_d = omath::opengl_engine::units_to_meters(units_d); + const auto units_d_back = omath::opengl_engine::meters_to_units(m_d); + EXPECT_DOUBLE_EQ(units_d_back, units_d); +} + +TEST(unit_test_opengl, RoundTrip_UnitsKilometers) +{ + constexpr float units_f = 100000.0f; + const auto km_f = omath::opengl_engine::units_to_kilometers(units_f); + const auto units_f_back = omath::opengl_engine::kilometers_to_units(km_f); + EXPECT_NEAR(units_f_back, units_f, 1e-2f); + + constexpr double units_d = -7654321.123; + const auto km_d = omath::opengl_engine::units_to_kilometers(units_d); + const auto units_d_back = omath::opengl_engine::kilometers_to_units(km_d); + EXPECT_NEAR(units_d_back, units_d, 1e-6); +} + +TEST(unit_test_opengl, ConversionChainConsistency) +{ + const double units = 424242.42; + + const auto cm_direct = omath::opengl_engine::units_to_centimeters(units); + const auto cm_via_units = units / 100.0; + EXPECT_NEAR(cm_direct, cm_via_units, 1e-12); + + const auto km_direct = omath::opengl_engine::units_to_kilometers(units); + const auto km_via_meters = omath::opengl_engine::units_to_meters(units) / 1000.0; + EXPECT_NEAR(km_direct, km_via_meters, 1e-12); +} + +TEST(unit_test_opengl, SupportsFloatAndDouble) +{ + static_assert(std::is_same_v); + static_assert(std::is_same_v); + static_assert(std::is_same_v); + static_assert(std::is_same_v); +} + +TEST(unit_test_opengl, ConstexprConversions) +{ + constexpr double units = 1000.0; + constexpr double cm = omath::opengl_engine::units_to_centimeters(units); + constexpr double m = omath::opengl_engine::units_to_meters(units); + constexpr double km = omath::opengl_engine::units_to_kilometers(units); + + static_assert(cm == 10.0, "units_to_centimeters constexpr failed"); + static_assert(m == 1000.0, "units_to_meters constexpr failed"); + static_assert(km == 1.0, "units_to_kilometers constexpr failed"); +} TEST(unit_test_opengl, ForwardVector) { const auto forward = omath::opengl_engine::forward_vector({}); diff --git a/tests/engines/unit_test_source_engine.cpp b/tests/engines/unit_test_source_engine.cpp index ac480e4..4e3510f 100644 --- a/tests/engines/unit_test_source_engine.cpp +++ b/tests/engines/unit_test_source_engine.cpp @@ -7,6 +7,129 @@ #include #include +TEST(unit_test_source_engine_units, HammerUnitsToCentimeters_BasicValues) +{ + EXPECT_FLOAT_EQ(omath::source_engine::units_to_centimeters(0.0f), 0.0f); + EXPECT_FLOAT_EQ(omath::source_engine::units_to_centimeters(1.0f), 2.54f); + EXPECT_FLOAT_EQ(omath::source_engine::units_to_centimeters(10.0f), 25.4f); + EXPECT_FLOAT_EQ(omath::source_engine::units_to_centimeters(-2.0f), -5.08f); +} + +TEST(unit_test_source_engine_units, HammerUnitsToMeters_BasicValues) +{ + EXPECT_NEAR(omath::source_engine::units_to_meters(0.0), 0.0, 1e-12); + EXPECT_NEAR(omath::source_engine::units_to_meters(1.0), 0.0254, 1e-12); + EXPECT_NEAR(omath::source_engine::units_to_meters(100.0), 2.54, 1e-12); + EXPECT_NEAR(omath::source_engine::units_to_meters(-4.0), -0.1016, 1e-12); +} + +TEST(unit_test_source_engine_units, HammerUnitsToKilometers_BasicValues) +{ + EXPECT_NEAR(omath::source_engine::units_to_kilometers(0.0), 0.0, 1e-15); + EXPECT_NEAR(omath::source_engine::units_to_kilometers(1.0), 0.0000254, 1e-15); + EXPECT_NEAR(omath::source_engine::units_to_kilometers(1000.0), 0.0254, 1e-15); + EXPECT_NEAR(omath::source_engine::units_to_kilometers(-10.0), -0.000254, 1e-15); +} + +TEST(unit_test_source_engine_units, CentimetersToHammerUnits_BasicValues) +{ + EXPECT_FLOAT_EQ(omath::source_engine::centimeters_to_units(0.0f), 0.0f); + EXPECT_NEAR(omath::source_engine::centimeters_to_units(2.54f), 1.0f, 1e-6f); + EXPECT_NEAR(omath::source_engine::centimeters_to_units(25.4f), 10.0f, 1e-5f); + EXPECT_NEAR(omath::source_engine::centimeters_to_units(-5.08f), -2.0f, 1e-6f); +} + +TEST(unit_test_source_engine_units, MetersToHammerUnits_BasicValues) +{ + EXPECT_NEAR(omath::source_engine::meters_to_units(0.0), 0.0, 1e-12); + EXPECT_NEAR(omath::source_engine::meters_to_units(0.0254), 1.0, 1e-12); + EXPECT_NEAR(omath::source_engine::meters_to_units(2.54), 100.0, 1e-10); + EXPECT_NEAR(omath::source_engine::meters_to_units(-0.0508), -2.0, 1e-12); +} + +TEST(unit_test_source_engine_units, KilometersToHammerUnits_BasicValues) +{ + EXPECT_NEAR(omath::source_engine::kilometers_to_units(0.0), 0.0, 1e-9); + EXPECT_NEAR(omath::source_engine::kilometers_to_units(0.0000254), 1.0, 1e-9); + EXPECT_NEAR(omath::source_engine::kilometers_to_units(0.00254), 100.0, 1e-7); + EXPECT_NEAR(omath::source_engine::kilometers_to_units(-0.0000508), -2.0, 1e-9); +} + +TEST(unit_test_source_engine_units, RoundTrip_HammerToCentimetersToHammer) +{ + constexpr float hu_f = 123.456f; + constexpr auto cm_f = omath::source_engine::units_to_centimeters(hu_f); + constexpr auto hu_f_back = omath::source_engine::centimeters_to_units(cm_f); + EXPECT_NEAR(hu_f_back, hu_f, 1e-5f); + + constexpr double hu_d = -98765.4321; + constexpr auto cm_d = omath::source_engine::units_to_centimeters(hu_d); + constexpr auto hu_d_back = omath::source_engine::centimeters_to_units(cm_d); + EXPECT_NEAR(hu_d_back, hu_d, 1e-10); +} + +TEST(unit_test_source_engine_units, RoundTrip_HammerToMetersToHammer) +{ + constexpr float hu_f = 2500.25f; + constexpr auto m_f = omath::source_engine::units_to_meters(hu_f); + constexpr auto hu_f_back = omath::source_engine::meters_to_units(m_f); + EXPECT_NEAR(hu_f_back, hu_f, 1e-4f); + + constexpr double hu_d = -42000.125; + constexpr auto m_d = omath::source_engine::units_to_meters(hu_d); + constexpr auto hu_d_back = omath::source_engine::meters_to_units(m_d); + EXPECT_NEAR(hu_d_back, hu_d, 1e-10); +} + +TEST(unit_test_source_engine_units, RoundTrip_HammerToKilometersToHammer) +{ + constexpr float hu_f = 100000.0f; + constexpr auto km_f = omath::source_engine::units_to_kilometers(hu_f); + constexpr auto hu_f_back = omath::source_engine::kilometers_to_units(km_f); + EXPECT_NEAR(hu_f_back, hu_f, 1e-2f); // looser due to float scaling + + constexpr double hu_d = -1234567.89; + constexpr auto km_d = omath::source_engine::units_to_kilometers(hu_d); + constexpr auto hu_d_back = omath::source_engine::kilometers_to_units(km_d); + EXPECT_NEAR(hu_d_back, hu_d, 1e-7); +} + +TEST(unit_test_source_engine_units, ConversionChainConsistency) +{ + // hu -> cm -> m -> km should match direct helpers + constexpr auto hu = 54321.123; + + constexpr auto cm = omath::source_engine::units_to_centimeters(hu); + constexpr auto m_via_cm = cm / 100.0; + constexpr auto km_via_cm = m_via_cm / 1000.0; + + constexpr auto m_direct = omath::source_engine::units_to_meters(hu); + constexpr auto km_direct = omath::source_engine::units_to_kilometers(hu); + + EXPECT_NEAR(m_direct, m_via_cm, 1e-12); + EXPECT_NEAR(km_direct, km_via_cm, 1e-15); +} + +TEST(unit_test_source_engine_units, SupportsFloatAndDoubleTypes) +{ + static_assert(std::is_same_v); + static_assert(std::is_same_v); + static_assert(std::is_same_v); + static_assert(std::is_same_v); +} + +TEST(unit_test_source_engine_units, ConstexprEvaluation) +{ + constexpr double hu = 10.0; + constexpr double cm = omath::source_engine::units_to_centimeters(hu); + constexpr double m = omath::source_engine::units_to_meters(hu); + constexpr double km = omath::source_engine::units_to_kilometers(hu); + + static_assert(cm == 25.4, "constexpr hu->cm failed"); + static_assert(m == 0.254, "constexpr hu->m failed"); + static_assert(km == 0.000254, "constexpr hu->km failed"); +} + TEST(unit_test_source_engine, ForwardVector) { const auto forward = omath::source_engine::forward_vector({}); diff --git a/tests/engines/unit_test_unity_engine.cpp b/tests/engines/unit_test_unity_engine.cpp index 46735cc..ac57765 100644 --- a/tests/engines/unit_test_unity_engine.cpp +++ b/tests/engines/unit_test_unity_engine.cpp @@ -8,6 +8,126 @@ #include #include +TEST(unit_test_unity_engine, UnitsToCentimeters_BasicValues) +{ + EXPECT_FLOAT_EQ(omath::unity_engine::units_to_centimeters(0.0f), 0.0f); + EXPECT_FLOAT_EQ(omath::unity_engine::units_to_centimeters(1.0f), 0.01f); + EXPECT_FLOAT_EQ(omath::unity_engine::units_to_centimeters(100.0f), 1.0f); + EXPECT_FLOAT_EQ(omath::unity_engine::units_to_centimeters(-250.0f), -2.5f); +} + +TEST(unit_test_unity_engine, UnitsToMeters_BasicValues) +{ + EXPECT_DOUBLE_EQ(omath::unity_engine::units_to_meters(0.0), 0.0); + EXPECT_DOUBLE_EQ(omath::unity_engine::units_to_meters(1.0), 1.0); + EXPECT_DOUBLE_EQ(omath::unity_engine::units_to_meters(123.456), 123.456); + EXPECT_DOUBLE_EQ(omath::unity_engine::units_to_meters(-42.0), -42.0); +} + +TEST(unit_test_unity_engine, UnitsToKilometers_BasicValues) +{ + EXPECT_NEAR(omath::unity_engine::units_to_kilometers(0.0), 0.0, 1e-15); + EXPECT_NEAR(omath::unity_engine::units_to_kilometers(1.0), 0.001, 1e-15); + EXPECT_NEAR(omath::unity_engine::units_to_kilometers(1000.0), 1.0, 1e-12); + EXPECT_NEAR(omath::unity_engine::units_to_kilometers(-2500.0), -2.5, 1e-12); +} + +TEST(unit_test_unity_engine, CentimetersToUnits_BasicValues) +{ + EXPECT_FLOAT_EQ(omath::unity_engine::centimeters_to_units(0.0f), 0.0f); + EXPECT_FLOAT_EQ(omath::unity_engine::centimeters_to_units(0.01f), 1.0f); + EXPECT_FLOAT_EQ(omath::unity_engine::centimeters_to_units(1.0f), 100.0f); + EXPECT_FLOAT_EQ(omath::unity_engine::centimeters_to_units(-2.5f), -250.0f); +} + +TEST(unit_test_unity_engine, MetersToUnits_BasicValues) +{ + EXPECT_DOUBLE_EQ(omath::unity_engine::meters_to_units(0.0), 0.0); + EXPECT_DOUBLE_EQ(omath::unity_engine::meters_to_units(1.0), 1.0); + EXPECT_DOUBLE_EQ(omath::unity_engine::meters_to_units(123.456), 123.456); + EXPECT_DOUBLE_EQ(omath::unity_engine::meters_to_units(-42.0), -42.0); +} + +TEST(unit_test_unity_engine, KilometersToUnits_BasicValues) +{ + EXPECT_NEAR(omath::unity_engine::kilometers_to_units(0.0), 0.0, 1e-12); + EXPECT_NEAR(omath::unity_engine::kilometers_to_units(0.001), 1.0, 1e-12); + EXPECT_NEAR(omath::unity_engine::kilometers_to_units(1.0), 1000.0, 1e-9); + EXPECT_NEAR(omath::unity_engine::kilometers_to_units(-2.5), -2500.0, 1e-9); +} + +TEST(unit_test_unity_engine, RoundTrip_UnitsCentimeters) +{ + constexpr float units_f = 12345.678f; + constexpr auto cm_f = omath::unity_engine::units_to_centimeters(units_f); + constexpr auto units_f_back = omath::unity_engine::centimeters_to_units(cm_f); + EXPECT_NEAR(units_f_back, units_f, 1e-3f); + + constexpr double units_d = -987654.321; + constexpr auto cm_d = omath::unity_engine::units_to_centimeters(units_d); + constexpr auto units_d_back = omath::unity_engine::centimeters_to_units(cm_d); + EXPECT_NEAR(units_d_back, units_d, 1e-9); +} + +TEST(unit_test_unity_engine, RoundTrip_UnitsMeters) +{ + constexpr float units_f = 5432.125f; + constexpr auto m_f = omath::unity_engine::units_to_meters(units_f); + constexpr auto units_f_back = omath::unity_engine::meters_to_units(m_f); + EXPECT_FLOAT_EQ(units_f_back, units_f); + + constexpr double units_d = -123456.789; + constexpr auto m_d = omath::unity_engine::units_to_meters(units_d); + constexpr auto units_d_back = omath::unity_engine::meters_to_units(m_d); + EXPECT_DOUBLE_EQ(units_d_back, units_d); +} + +TEST(unit_test_unity_engine, RoundTrip_UnitsKilometers) +{ + constexpr float units_f = 100000.0f; + constexpr auto km_f = omath::unity_engine::units_to_kilometers(units_f); + constexpr auto units_f_back = omath::unity_engine::kilometers_to_units(km_f); + EXPECT_NEAR(units_f_back, units_f, 1e-2f); + + constexpr double units_d = -7654321.123; + constexpr auto km_d = omath::unity_engine::units_to_kilometers(units_d); + constexpr auto units_d_back = omath::unity_engine::kilometers_to_units(km_d); + EXPECT_NEAR(units_d_back, units_d, 1e-6); +} + +TEST(unit_test_unity_engine, ConversionChainConsistency) +{ + constexpr double units = 424242.42; + + constexpr auto cm_direct = omath::unity_engine::units_to_centimeters(units); + constexpr auto cm_via_units = units / 100.0; + EXPECT_NEAR(cm_direct, cm_via_units, 1e-12); + + constexpr auto km_direct = omath::unity_engine::units_to_kilometers(units); + constexpr auto km_via_meters = omath::unity_engine::units_to_meters(units) / 1000.0; + EXPECT_NEAR(km_direct, km_via_meters, 1e-12); +} + +TEST(unit_test_unity_engine, SupportsFloatAndDouble) +{ + static_assert(std::is_same_v); + static_assert(std::is_same_v); + static_assert(std::is_same_v); + static_assert(std::is_same_v); +} + +TEST(unit_test_unity_engine, ConstexprConversions) +{ + constexpr double units = 1000.0; + constexpr double cm = omath::unity_engine::units_to_centimeters(units); + constexpr double m = omath::unity_engine::units_to_meters(units); + constexpr double km = omath::unity_engine::units_to_kilometers(units); + + static_assert(cm == 10.0, "units_to_centimeters constexpr failed"); + static_assert(m == 1000.0, "units_to_meters constexpr failed"); + static_assert(km == 1.0, "units_to_kilometers constexpr failed"); +} + TEST(unit_test_unity_engine, ForwardVector) { const auto forward = omath::unity_engine::forward_vector({}); diff --git a/tests/engines/unit_test_unreal_engine.cpp b/tests/engines/unit_test_unreal_engine.cpp index 6b2f499..0a4441a 100644 --- a/tests/engines/unit_test_unreal_engine.cpp +++ b/tests/engines/unit_test_unreal_engine.cpp @@ -238,4 +238,127 @@ TEST(unit_test_unreal_engine, loook_at_random_z_axis) failed_points++; } EXPECT_LE(failed_points, 100); +} +TEST(unit_test_unreal_engine, UnitsToCentimeters_BasicValues) +{ + EXPECT_FLOAT_EQ(omath::unreal_engine::units_to_centimeters(0.0f), 0.0f); + EXPECT_FLOAT_EQ(omath::unreal_engine::units_to_centimeters(1.0f), 1.0f); + EXPECT_FLOAT_EQ(omath::unreal_engine::units_to_centimeters(250.0f), 250.0f); + EXPECT_FLOAT_EQ(omath::unreal_engine::units_to_centimeters(-42.5f), -42.5f); +} + +TEST(unit_test_unreal_engine, UnitsToMeters_BasicValues) +{ + EXPECT_NEAR(omath::unreal_engine::units_to_meters(0.0), 0.0, 1e-15); + EXPECT_NEAR(omath::unreal_engine::units_to_meters(1.0), 0.01, 1e-15); + EXPECT_NEAR(omath::unreal_engine::units_to_meters(100.0), 1.0, 1e-12); + EXPECT_NEAR(omath::unreal_engine::units_to_meters(-250.0), -2.5, 1e-12); +} + +TEST(unit_test_unreal_engine, UnitsToKilometers_BasicValues) +{ + EXPECT_NEAR(omath::unreal_engine::units_to_kilometers(0.0), 0.0, 1e-18); + EXPECT_NEAR(omath::unreal_engine::units_to_kilometers(1.0), 0.00001, 1e-18); + EXPECT_NEAR(omath::unreal_engine::units_to_kilometers(100000.0), 1.0, 1e-12); + EXPECT_NEAR(omath::unreal_engine::units_to_kilometers(-250000.0), -2.5, 1e-12); +} + +TEST(unit_test_unreal_engine, CentimetersToUnits_BasicValues) +{ + EXPECT_FLOAT_EQ(omath::unreal_engine::centimeters_to_units(0.0f), 0.0f); + EXPECT_FLOAT_EQ(omath::unreal_engine::centimeters_to_units(1.0f), 1.0f); + EXPECT_FLOAT_EQ(omath::unreal_engine::centimeters_to_units(250.0f), 250.0f); + EXPECT_FLOAT_EQ(omath::unreal_engine::centimeters_to_units(-42.5f), -42.5f); +} + +TEST(unit_test_unreal_engine, MetersToUnits_BasicValues) +{ + EXPECT_NEAR(omath::unreal_engine::meters_to_units(0.0), 0.0, 1e-12); + EXPECT_NEAR(omath::unreal_engine::meters_to_units(0.01), 1.0, 1e-12); + EXPECT_NEAR(omath::unreal_engine::meters_to_units(1.0), 100.0, 1e-9); + EXPECT_NEAR(omath::unreal_engine::meters_to_units(-2.5), -250.0, 1e-9); +} + +TEST(unit_test_unreal_engine, KilometersToUnits_BasicValues) +{ + EXPECT_NEAR(omath::unreal_engine::kilometers_to_units(0.0), 0.0, 1e-9); + EXPECT_NEAR(omath::unreal_engine::kilometers_to_units(0.00001), 1.0, 1e-9); + EXPECT_NEAR(omath::unreal_engine::kilometers_to_units(1.0), 100000.0, 1e-6); + EXPECT_NEAR(omath::unreal_engine::kilometers_to_units(-2.5), -250000.0, 1e-3); +} + +TEST(unit_test_unreal_engine, RoundTrip_UnitsCentimeters) +{ + constexpr float units_f = 12345.678f; + constexpr auto cm_f = omath::unreal_engine::units_to_centimeters(units_f); + constexpr auto units_f_back = omath::unreal_engine::centimeters_to_units(cm_f); + EXPECT_FLOAT_EQ(units_f_back, units_f); + + constexpr double units_d = -987654.321; + constexpr auto cm_d = omath::unreal_engine::units_to_centimeters(units_d); + constexpr auto units_d_back = omath::unreal_engine::centimeters_to_units(cm_d); + EXPECT_DOUBLE_EQ(units_d_back, units_d); +} + +TEST(unit_test_unreal_engine, RoundTrip_UnitsMeters) +{ + constexpr float units_f = 5432.125f; + constexpr auto m_f = omath::unreal_engine::units_to_meters(units_f); + constexpr auto units_f_back = omath::unreal_engine::meters_to_units(m_f); + EXPECT_NEAR(units_f_back, units_f, 1e-3f); + + constexpr double units_d = -123456.789; + constexpr auto m_d = omath::unreal_engine::units_to_meters(units_d); + constexpr auto units_d_back = omath::unreal_engine::meters_to_units(m_d); + EXPECT_NEAR(units_d_back, units_d, 1e-9); +} + +TEST(unit_test_unreal_engine, RoundTrip_UnitsKilometers) +{ + constexpr float units_f = 100000.0f; + constexpr auto km_f = omath::unreal_engine::units_to_kilometers(units_f); + constexpr auto units_f_back = omath::unreal_engine::kilometers_to_units(km_f); + EXPECT_NEAR(units_f_back, units_f, 1e-2f); + + constexpr double units_d = -7654321.123; + constexpr auto km_d = omath::unreal_engine::units_to_kilometers(units_d); + constexpr auto units_d_back = omath::unreal_engine::kilometers_to_units(km_d); + EXPECT_NEAR(units_d_back, units_d, 1e-6); +} + +TEST(unit_test_unreal_engine, ConversionChainConsistency) +{ + constexpr double units = 424242.42; + + constexpr auto cm_direct = omath::unreal_engine::units_to_centimeters(units); + constexpr auto cm_expected = units; // 1 uu == 1 cm + EXPECT_NEAR(cm_direct, cm_expected, 1e-12); + + constexpr auto m_direct = omath::unreal_engine::units_to_meters(units); + constexpr auto m_via_cm = cm_direct / 100.0; + EXPECT_NEAR(m_direct, m_via_cm, 1e-12); + + constexpr auto km_direct = omath::unreal_engine::units_to_kilometers(units); + constexpr auto km_via_m = m_direct / 1000.0; + EXPECT_NEAR(km_direct, km_via_m, 1e-15); +} + +TEST(unit_test_unreal_engine, SupportsFloatAndDouble) +{ + static_assert(std::is_same_v); + static_assert(std::is_same_v); + static_assert(std::is_same_v); + static_assert(std::is_same_v); +} + +TEST(unit_test_unreal_engine, ConstexprConversions) +{ + constexpr double units = 100000.0; + constexpr double cm = omath::unreal_engine::units_to_centimeters(units); + constexpr double m = omath::unreal_engine::units_to_meters(units); + constexpr double km = omath::unreal_engine::units_to_kilometers(units); + + static_assert(cm == 100000.0, "units_to_centimeters constexpr failed"); + static_assert(m == 1000.0, "units_to_meters constexpr failed"); + static_assert(km == 1.0, "units_to_kilometers constexpr failed"); } \ No newline at end of file