1426cd3b3a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see". Backported from #70885.
270 lines
7.7 KiB
C++
270 lines
7.7 KiB
C++
/**************************************************************************/
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/* test_transform.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "test_transform.h"
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#include "core/math/random_number_generator.h"
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#include "core/math/transform.h"
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#include "core/math/vector3.h"
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#include "core/os/os.h"
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#include "core/ustring.h"
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// #define GODOT_TEST_TRANSFORM_NON_UNIFORM_SCALE_TESTS_ENABLED
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namespace TestTransform {
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bool test_plane() {
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bool pass = true;
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// test non-uniform scaling, forward and inverse
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Transform tr;
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tr.scale(Vector3(1, 2, 3));
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Plane p(Vector3(1, 1, 1), Vector3(1, 1, 1).normalized());
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Plane p2 = tr.xform(p);
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Plane p3 = tr.xform_inv(p2);
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if (!p3.normal.is_equal_approx(p.normal)) {
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OS::get_singleton()->print("Fail due to Transform::xform(Plane)\n");
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pass = false;
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}
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return pass;
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}
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bool test_aabb_regular() {
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bool pass = true;
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Transform tr;
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tr.basis = Basis(Vector3(Math_PI, 0, 0));
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tr.origin = Vector3(1, 2, 3);
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AABB bb(Vector3(1, 1, 1), Vector3(2, 3, 4));
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// Test forward xform.
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AABB bb2 = tr.xform(bb);
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AABB bb3 = tr.xform_inv(bb2);
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if (!bb3.position.is_equal_approx(bb.position)) {
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OS::get_singleton()->print("Fail due to Transform::xform_inv(AABB) position\n");
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pass = false;
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}
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if (!bb3.size.is_equal_approx(bb.size)) {
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OS::get_singleton()->print("Fail due to Transform::xform_inv(AABB) size\n");
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pass = false;
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}
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if (!pass) {
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String string = String("bb2 : ") + String(Variant(bb2));
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OS::get_singleton()->print("\t%ls\n", string.c_str());
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string = String("bb3 : ") + String(Variant(bb3));
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OS::get_singleton()->print("\t%ls\n", string.c_str());
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}
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return pass;
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}
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bool test_aabb_non_uniform_scale() {
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bool pass = true;
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Transform tr;
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tr.scale(Vector3(1, 2, 3));
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AABB bb(Vector3(1, 1, 1), Vector3(2, 3, 4));
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// Test forward xform.
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AABB bb2 = tr.xform(bb);
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if (!bb2.position.is_equal_approx(Vector3(1, 2, 3))) {
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OS::get_singleton()->print("Fail with non-uniform scale due to Transform::xform(AABB) position\n");
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pass = false;
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}
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if (!bb2.size.is_equal_approx(Vector3(2, 6, 12))) {
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OS::get_singleton()->print("Fail with non-uniform scale due to Transform::xform(AABB) size\n");
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pass = false;
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}
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// Now test inverse.
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// This will fail if using the transpose and not the affine_inverse.
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bb2.position = Vector3(1, 2, 3);
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bb2.size = Vector3(2, 6, 12);
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AABB bb3 = tr.xform_inv(bb2);
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if (!bb3.position.is_equal_approx(bb.position)) {
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OS::get_singleton()->print("Fail with non-uniform scale due to Transform::xform_inv(AABB) position\n");
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pass = false;
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}
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if (!bb3.size.is_equal_approx(bb.size)) {
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OS::get_singleton()->print("Fail with non-uniform scale due to Transform::xform_inv(AABB) size\n");
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pass = false;
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}
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if (!pass) {
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String string = String("bb2 : ") + String(Variant(bb2));
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OS::get_singleton()->print("\t%ls\n", string.c_str());
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string = String("bb3 : ") + String(Variant(bb3));
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OS::get_singleton()->print("\t%ls\n", string.c_str());
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}
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return pass;
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}
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bool test_aabb() {
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bool pass = true;
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if (!test_aabb_regular()) {
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pass = false;
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}
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#ifdef GODOT_TEST_TRANSFORM_NON_UNIFORM_SCALE_TESTS_ENABLED
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if (!test_aabb_non_uniform_scale()) {
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pass = false;
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}
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#endif
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return pass;
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}
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bool test_vector3_regular() {
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bool pass = true;
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Transform tr;
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RandomNumberGenerator rng;
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const real_t range = 1800.0;
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const real_t range_rot = Math_PI;
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bool passed_multi = true;
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for (int n = 0; n < 1000; n++) {
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Vector3 pt_test = Vector3(rng.randf_range(-range, range), rng.randf_range(-range, range), rng.randf_range(-range, range));
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tr.origin = Vector3(rng.randf_range(-range, range), rng.randf_range(-range, range), rng.randf_range(-range, range));
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tr.basis = Basis(Vector3(rng.randf_range(-range_rot, range_rot), rng.randf_range(-range_rot, range_rot), rng.randf_range(-range_rot, range_rot)));
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Vector3 pt = tr.xform(pt_test);
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pt = tr.xform_inv(pt);
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if (!pt.is_equal_approx(pt_test, 0.1)) {
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passed_multi = false;
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}
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}
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if (!passed_multi) {
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OS::get_singleton()->print("Failed multitest due to Transform::xform and xform_inv(Vector3)\n");
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pass = false;
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}
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return pass;
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}
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bool test_vector3_non_uniform_scale() {
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bool pass = true;
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// Regular scale.
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Transform tr;
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tr.scale(Vector3(3, 3, 3));
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Vector3 pt(1, 1, 1);
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Vector3 res = tr.xform(pt);
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if (!res.is_equal_approx(Vector3(3, 3, 3))) {
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OS::get_singleton()->print("Fail with scale due to Transform::xform(Vector3)\n");
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pass = false;
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}
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res = tr.xform_inv(res);
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if (!res.is_equal_approx(pt)) {
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OS::get_singleton()->print("Fail with scale due to Transform::xform_inv(Vector3)\n");
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pass = false;
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}
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// Non uniform scale.
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tr.scale(Vector3(1, 2, 3));
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res = tr.xform(pt);
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if (!res.is_equal_approx(Vector3(1, 2, 3))) {
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OS::get_singleton()->print("Fail with non-uniform scale due to Transform::xform(Vector3)\n");
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pass = false;
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}
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pt = Vector3(1, 2, 3);
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res = tr.xform_inv(pt);
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if (!res.is_equal_approx(Vector3(1, 1, 1))) {
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OS::get_singleton()->print("Fail with non-uniform scale due to Transform::xform_inv(Vector3)\n");
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pass = false;
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}
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return pass;
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}
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bool test_vector3() {
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bool pass = true;
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if (!test_vector3_regular()) {
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pass = false;
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}
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#ifdef GODOT_TEST_TRANSFORM_NON_UNIFORM_SCALE_TESTS_ENABLED
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if (!test_vector3_non_uniform_scale()) {
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pass = false;
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}
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#endif
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return pass;
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}
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MainLoop *test() {
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OS::get_singleton()->print("Start Transform checks.\n");
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bool success = true;
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if (!test_vector3()) {
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success = false;
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}
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if (!test_plane()) {
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success = false;
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}
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if (!test_aabb()) {
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success = false;
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}
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if (success) {
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OS::get_singleton()->print("Transform checks passed.\n");
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} else {
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OS::get_singleton()->print("Transform checks FAILED.\n");
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}
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return nullptr;
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}
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} // namespace TestTransform
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