/**************************************************************************/
/* test_plane.h */
/**************************************************************************/
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/* GODOT ENGINE */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
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#ifndef TEST_PLANE_H
#define TEST_PLANE_H
#include "core/math/plane.h"
#include "thirdparty/doctest/doctest.h"
namespace TestPlane {
// Plane
TEST_CASE("[Plane] Constructor methods") {
const Plane plane = Plane(32, 22, 16, 3);
const Plane plane_vector = Plane(Vector3(32, 22, 16), 3);
const Plane plane_copy_plane = Plane(plane);
CHECK_MESSAGE(
plane == plane_vector,
"Planes created with same values but different methods should be equal.");
CHECK_MESSAGE(
plane == plane_copy_plane,
"Planes created with same values but different methods should be equal.");
}
TEST_CASE("[Plane] Basic getters") {
const Plane plane = Plane(32, 22, 16, 3);
const Plane plane_normalized = Plane(32.0 / 42, 22.0 / 42, 16.0 / 42, 3.0 / 42);
CHECK_MESSAGE(
plane.get_normal().is_equal_approx(Vector3(32, 22, 16)),
"get_normal() should return the expected value.");
CHECK_MESSAGE(
plane.normalized().is_equal_approx(plane_normalized),
"normalized() should return a copy of the normalized value.");
}
TEST_CASE("[Plane] Basic setters") {
Plane plane = Plane(32, 22, 16, 3);
plane.set_normal(Vector3(4, 2, 3));
CHECK_MESSAGE(
plane.is_equal_approx(Plane(4, 2, 3, 3)),
"set_normal() should result in the expected plane.");
plane = Plane(32, 22, 16, 3);
plane.normalize();
CHECK_MESSAGE(
plane.is_equal_approx(Plane(32.0 / 42, 22.0 / 42, 16.0 / 42, 3.0 / 42)),
"normalize() should result in the expected plane.");
}
TEST_CASE("[Plane] Plane-point operations") {
const Plane plane = Plane(32, 22, 16, 3);
const Plane y_facing_plane = Plane(0, 1, 0, 4);
CHECK_MESSAGE(
plane.get_center().is_equal_approx(Vector3(32 * 3, 22 * 3, 16 * 3)),
"get_center() should return a vector pointing to the center of the plane.");
CHECK_MESSAGE(
y_facing_plane.is_point_over(Vector3(0, 5, 0)),
"is_point_over() should return the expected result.");
CHECK_MESSAGE(
y_facing_plane.get_any_perpendicular_normal().is_equal_approx(Vector3(1, 0, 0)),
"get_any_perpindicular_normal() should return the expected result.");
// TODO distance_to()
}
TEST_CASE("[Plane] Has point") {
const Plane x_facing_plane = Plane(1, 0, 0, 0);
const Plane y_facing_plane = Plane(0, 1, 0, 0);
const Plane z_facing_plane = Plane(0, 0, 1, 0);
const Vector3 x_axis_point = Vector3(10, 0, 0);
const Vector3 y_axis_point = Vector3(0, 10, 0);
const Vector3 z_axis_point = Vector3(0, 0, 10);
const Plane x_facing_plane_with_d_offset = Plane(1, 0, 0, 1);
const Vector3 y_axis_point_with_d_offset = Vector3(1, 10, 0);
CHECK_MESSAGE(
x_facing_plane.has_point(y_axis_point),
"has_point() with contained Vector3 should return the expected result.");
CHECK_MESSAGE(
x_facing_plane.has_point(z_axis_point),
"has_point() with contained Vector3 should return the expected result.");
CHECK_MESSAGE(
y_facing_plane.has_point(x_axis_point),
"has_point() with contained Vector3 should return the expected result.");
CHECK_MESSAGE(
y_facing_plane.has_point(z_axis_point),
"has_point() with contained Vector3 should return the expected result.");
CHECK_MESSAGE(
z_facing_plane.has_point(y_axis_point),
"has_point() with contained Vector3 should return the expected result.");
CHECK_MESSAGE(
z_facing_plane.has_point(x_axis_point),
"has_point() with contained Vector3 should return the expected result.");
CHECK_MESSAGE(
x_facing_plane_with_d_offset.has_point(y_axis_point_with_d_offset),
"has_point() with passed Vector3 should return the expected result.");
}
TEST_CASE("[Plane] Intersection") {
const Plane x_facing_plane = Plane(1, 0, 0, 1);
const Plane y_facing_plane = Plane(0, 1, 0, 2);
const Plane z_facing_plane = Plane(0, 0, 1, 3);
Vector3 vec_out;
CHECK_MESSAGE(
x_facing_plane.intersect_3(y_facing_plane, z_facing_plane, &vec_out),
"intersect_3() should return the expected result.");
CHECK_MESSAGE(
vec_out.is_equal_approx(Vector3(1, 2, 3)),
"intersect_3() should modify vec_out to the expected result.");
CHECK_MESSAGE(
x_facing_plane.intersects_ray(Vector3(0, 1, 1), Vector3(2, 0, 0), &vec_out),
"intersects_ray() should return the expected result.");
CHECK_MESSAGE(
vec_out.is_equal_approx(Vector3(1, 1, 1)),
"intersects_ray() should modify vec_out to the expected result.");
CHECK_MESSAGE(
x_facing_plane.intersects_segment(Vector3(0, 1, 1), Vector3(2, 1, 1), &vec_out),
"intersects_segment() should return the expected result.");
CHECK_MESSAGE(
vec_out.is_equal_approx(Vector3(1, 1, 1)),
"intersects_segment() should modify vec_out to the expected result.");
}
TEST_CASE("[Plane] Finite number checks") {
const Vector3 x(0, 1, 2);
const Vector3 infinite_vec(NAN, NAN, NAN);
const real_t y = 0;
const real_t infinite_y = NAN;
CHECK_MESSAGE(
Plane(x, y).is_finite(),
"Plane with all components finite should be finite");
CHECK_FALSE_MESSAGE(
Plane(x, infinite_y).is_finite(),
"Plane with one component infinite should not be finite.");
CHECK_FALSE_MESSAGE(
Plane(infinite_vec, y).is_finite(),
"Plane with one component infinite should not be finite.");
CHECK_FALSE_MESSAGE(
Plane(infinite_vec, infinite_y).is_finite(),
"Plane with two components infinite should not be finite.");
}
} // namespace TestPlane
#endif // TEST_PLANE_H
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