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243 lines
7.6 KiB
C++
243 lines
7.6 KiB
C++
//
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// Created by Orange on 11/23/2024.
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//
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#include <gtest/gtest.h>
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#include <omath/engines/source_engine/camera.hpp>
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#include <omath/engines/source_engine/constants.hpp>
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#include <omath/engines/source_engine/formulas.hpp>
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#include <random>
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TEST(unit_test_source_engine, ForwardVector)
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{
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const auto forward = omath::source_engine::forward_vector({});
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EXPECT_EQ(forward, omath::source_engine::k_abs_forward);
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}
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TEST(unit_test_source_engine, RightVector)
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{
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const auto right = omath::source_engine::right_vector({});
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EXPECT_EQ(right, omath::source_engine::k_abs_right);
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}
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TEST(unit_test_source_engine, UpVector)
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{
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const auto up = omath::source_engine::up_vector({});
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EXPECT_EQ(up, omath::source_engine::k_abs_up);
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}
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TEST(unit_test_source_engine, ForwardVectorRotationYaw)
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{
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omath::source_engine::ViewAngles angles;
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angles.yaw = omath::source_engine::YawAngle::from_degrees(-90.f);
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const auto forward = omath::source_engine::forward_vector(angles);
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EXPECT_NEAR(forward.x, omath::source_engine::k_abs_right.x, 0.00001f);
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EXPECT_NEAR(forward.y, omath::source_engine::k_abs_right.y, 0.00001f);
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EXPECT_NEAR(forward.z, omath::source_engine::k_abs_right.z, 0.00001f);
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}
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TEST(unit_test_source_engine, ForwardVectorRotationPitch)
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{
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omath::source_engine::ViewAngles angles;
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angles.pitch = omath::source_engine::PitchAngle::from_degrees(-89.f);
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const auto forward = omath::source_engine::forward_vector(angles);
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EXPECT_NEAR(forward.x, omath::source_engine::k_abs_up.x, 0.02f);
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EXPECT_NEAR(forward.y, omath::source_engine::k_abs_up.y, 0.01f);
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EXPECT_NEAR(forward.z, omath::source_engine::k_abs_up.z, 0.01f);
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}
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TEST(unit_test_source_engine, ForwardVectorRotationRoll)
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{
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omath::source_engine::ViewAngles angles;
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angles.roll = omath::source_engine::RollAngle::from_degrees(90.f);
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const auto forward = omath::source_engine::up_vector(angles);
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EXPECT_NEAR(forward.x, omath::source_engine::k_abs_right.x, 0.00001f);
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EXPECT_NEAR(forward.y, omath::source_engine::k_abs_right.y, 0.00001f);
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EXPECT_NEAR(forward.z, omath::source_engine::k_abs_right.z, 0.00001f);
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}
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TEST(unit_test_source_engine, ProjectTargetMovedFromCamera)
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{
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constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
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const auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
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for (float distance = 0.02f; distance < 1000.f; distance += 0.01f)
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{
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const auto projected = cam.world_to_screen({distance, 0, 0});
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EXPECT_TRUE(projected.has_value());
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if (!projected.has_value())
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continue;
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EXPECT_NEAR(projected->x, 960, 0.00001f);
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EXPECT_NEAR(projected->y, 540, 0.00001f);
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}
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}
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TEST(unit_test_source_engine, ProjectTargetMovedUp)
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{
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constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
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const auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
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auto prev = 1080.f;
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for (float distance = 0.0f; distance < 10.f; distance += 1.f)
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{
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const auto projected = cam.world_to_screen({100.f, 0, distance});
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EXPECT_TRUE(projected.has_value());
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if (!projected.has_value())
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continue;
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EXPECT_TRUE(projected->y < prev);
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prev = projected->y;
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}
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}
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TEST(unit_test_source_engine, CameraSetAndGetFov)
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{
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constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
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auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
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EXPECT_EQ(cam.get_field_of_view().as_degrees(), 90.f);
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cam.set_field_of_view(omath::projection::FieldOfView::from_degrees(50.f));
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EXPECT_EQ(cam.get_field_of_view().as_degrees(), 50.f);
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}
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TEST(unit_test_source_engine, CameraSetAndGetOrigin)
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{
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auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, {}, 0.01f, 1000.f);
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EXPECT_EQ(cam.get_origin(), omath::Vector3<float>{});
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cam.set_field_of_view(omath::projection::FieldOfView::from_degrees(50.f));
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EXPECT_EQ(cam.get_field_of_view().as_degrees(), 50.f);
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}
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TEST(unit_test_source_engine, loook_at_random_all_axis)
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{
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std::mt19937 gen(std::random_device{}()); // Seed with a non-deterministic source
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std::uniform_real_distribution<float> dist(-1000.f, 1000.f);
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constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
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auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.001f, 10000.f);
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for (int i = 0; i < 100; i++)
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{
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const auto position_to_look = omath::Vector3<float>{dist(gen), dist(gen), dist(gen)};
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if (cam.get_origin().distance_to(position_to_look) < 10)
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continue;
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cam.look_at(position_to_look);
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auto projected_pos = cam.world_to_view_port(position_to_look);
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EXPECT_TRUE(projected_pos.has_value());
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if (!projected_pos)
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continue;
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EXPECT_NEAR(projected_pos->x, 0.f, 0.015f);
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EXPECT_NEAR(projected_pos->y, 0.f, 0.015f);
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}
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}
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TEST(unit_test_source_engine, loook_at_random_x_axis)
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{
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std::mt19937 gen(std::random_device{}()); // Seed with a non-deterministic source
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std::uniform_real_distribution<float> dist(-500.f, 500.f);
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constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
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auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.001f, 10000.f);
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for (int i = 0; i < 1000; i++)
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{
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const auto position_to_look = omath::Vector3<float>{dist(gen), 0.f, 0.f};
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if (cam.get_origin().distance_to(position_to_look) < 10)
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continue;
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cam.look_at(position_to_look);
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auto projected_pos = cam.world_to_view_port(position_to_look);
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EXPECT_TRUE(projected_pos.has_value());
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if (!projected_pos)
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continue;
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EXPECT_NEAR(projected_pos->x, 0.f, 0.00001f);
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EXPECT_NEAR(projected_pos->y, 0.f, 0.00001f);
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}
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}
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TEST(unit_test_source_engine, loook_at_random_y_axis)
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{
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std::mt19937 gen(std::random_device{}()); // Seed with a non-deterministic source
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std::uniform_real_distribution<float> dist(-500.f, 500.f);
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constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
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auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.001f, 10000.f);
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for (int i = 0; i < 1000; i++)
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{
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const auto position_to_look = omath::Vector3<float>{0.f, dist(gen), 0.f};
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if (cam.get_origin().distance_to(position_to_look) < 10)
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continue;
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cam.look_at(position_to_look);
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auto projected_pos = cam.world_to_view_port(position_to_look);
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EXPECT_TRUE(projected_pos.has_value());
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if (!projected_pos)
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continue;
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EXPECT_NEAR(projected_pos->x, 0.f, 0.00001f);
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EXPECT_NEAR(projected_pos->y, 0.f, 0.00001f);
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}
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}
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TEST(unit_test_source_engine, loook_at_random_z_axis)
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{
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std::mt19937 gen(std::random_device{}()); // Seed with a non-deterministic source
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std::uniform_real_distribution<float> dist(-500.f, 500.f);
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constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
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auto cam = omath::source_engine::Camera({0, 0, 0}, {}, {1920.f, 1080.f}, fov, 0.001f, 10000.f);
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for (int i = 0; i < 1000; i++)
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{
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const auto position_to_look = omath::Vector3<float>{0.f, 0.f, dist(gen)};
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cam.look_at(position_to_look);
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auto projected_pos = cam.world_to_view_port(position_to_look);
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EXPECT_TRUE(projected_pos.has_value());
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if (!projected_pos)
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continue;
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EXPECT_NEAR(projected_pos->x, 0.f, 0.00001f);
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EXPECT_NEAR(projected_pos->y, 0.f, 0.025f);
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}
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} |