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d95794ec8a
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".
257 lines
11 KiB
C++
257 lines
11 KiB
C++
/**************************************************************************/
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/* test_curve.h */
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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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#ifndef TEST_CURVE_H
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#define TEST_CURVE_H
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#include "core/math/math_funcs.h"
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#include "scene/resources/curve.h"
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#include "tests/test_macros.h"
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namespace TestCurve {
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TEST_CASE("[Curve] Default curve") {
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const Ref<Curve> curve = memnew(Curve);
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CHECK_MESSAGE(
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curve->get_point_count() == 0,
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"Default curve should contain the expected number of points.");
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CHECK_MESSAGE(
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Math::is_zero_approx(curve->sample(0)),
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"Default curve should return the expected value at offset 0.0.");
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CHECK_MESSAGE(
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Math::is_zero_approx(curve->sample(0.5)),
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"Default curve should return the expected value at offset 0.5.");
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CHECK_MESSAGE(
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Math::is_zero_approx(curve->sample(1)),
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"Default curve should return the expected value at offset 1.0.");
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}
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TEST_CASE("[Curve] Custom curve with free tangents") {
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Ref<Curve> curve = memnew(Curve);
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// "Sawtooth" curve with an open ending towards the 1.0 offset.
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curve->add_point(Vector2(0, 0));
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curve->add_point(Vector2(0.25, 1));
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curve->add_point(Vector2(0.5, 0));
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curve->add_point(Vector2(0.75, 1));
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CHECK_MESSAGE(
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Math::is_zero_approx(curve->get_point_left_tangent(0)),
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"get_point_left_tangent() should return the expected value for point index 0.");
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CHECK_MESSAGE(
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Math::is_zero_approx(curve->get_point_right_tangent(0)),
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"get_point_right_tangent() should return the expected value for point index 0.");
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CHECK_MESSAGE(
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curve->get_point_left_mode(0) == Curve::TangentMode::TANGENT_FREE,
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"get_point_left_mode() should return the expected value for point index 0.");
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CHECK_MESSAGE(
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curve->get_point_right_mode(0) == Curve::TangentMode::TANGENT_FREE,
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"get_point_right_mode() should return the expected value for point index 0.");
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CHECK_MESSAGE(
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curve->get_point_count() == 4,
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"Custom free curve should contain the expected number of points.");
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CHECK_MESSAGE(
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Math::is_zero_approx(curve->sample(-0.1)),
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"Custom free curve should return the expected value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample(0.1) == doctest::Approx((real_t)0.352),
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"Custom free curve should return the expected value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample(0.4) == doctest::Approx((real_t)0.352),
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"Custom free curve should return the expected value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample(0.7) == doctest::Approx((real_t)0.896),
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"Custom free curve should return the expected value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample(1) == doctest::Approx(1),
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"Custom free curve should return the expected value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample(2) == doctest::Approx(1),
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"Custom free curve should return the expected value at offset 0.1.");
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CHECK_MESSAGE(
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Math::is_zero_approx(curve->sample_baked(-0.1)),
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"Custom free curve should return the expected baked value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample_baked(0.1) == doctest::Approx((real_t)0.352),
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"Custom free curve should return the expected baked value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample_baked(0.4) == doctest::Approx((real_t)0.352),
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"Custom free curve should return the expected baked value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample_baked(0.7) == doctest::Approx((real_t)0.896),
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"Custom free curve should return the expected baked value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample_baked(1) == doctest::Approx(1),
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"Custom free curve should return the expected baked value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample_baked(2) == doctest::Approx(1),
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"Custom free curve should return the expected baked value at offset 0.1.");
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curve->remove_point(1);
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CHECK_MESSAGE(
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curve->sample(0.1) == doctest::Approx(0),
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"Custom free curve should return the expected value at offset 0.1 after removing point at index 1.");
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CHECK_MESSAGE(
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curve->sample_baked(0.1) == doctest::Approx(0),
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"Custom free curve should return the expected baked value at offset 0.1 after removing point at index 1.");
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curve->clear_points();
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CHECK_MESSAGE(
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curve->sample(0.6) == doctest::Approx(0),
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"Custom free curve should return the expected value at offset 0.6 after clearing all points.");
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CHECK_MESSAGE(
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curve->sample_baked(0.6) == doctest::Approx(0),
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"Custom free curve should return the expected baked value at offset 0.6 after clearing all points.");
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}
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TEST_CASE("[Curve] Custom curve with linear tangents") {
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Ref<Curve> curve = memnew(Curve);
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// "Sawtooth" curve with an open ending towards the 1.0 offset.
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curve->add_point(Vector2(0, 0), 0, 0, Curve::TangentMode::TANGENT_LINEAR, Curve::TangentMode::TANGENT_LINEAR);
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curve->add_point(Vector2(0.25, 1), 0, 0, Curve::TangentMode::TANGENT_LINEAR, Curve::TangentMode::TANGENT_LINEAR);
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curve->add_point(Vector2(0.5, 0), 0, 0, Curve::TangentMode::TANGENT_LINEAR, Curve::TangentMode::TANGENT_LINEAR);
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curve->add_point(Vector2(0.75, 1), 0, 0, Curve::TangentMode::TANGENT_LINEAR, Curve::TangentMode::TANGENT_LINEAR);
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CHECK_MESSAGE(
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curve->get_point_left_tangent(3) == doctest::Approx(4),
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"get_point_left_tangent() should return the expected value for point index 3.");
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CHECK_MESSAGE(
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Math::is_zero_approx(curve->get_point_right_tangent(3)),
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"get_point_right_tangent() should return the expected value for point index 3.");
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CHECK_MESSAGE(
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curve->get_point_left_mode(3) == Curve::TangentMode::TANGENT_LINEAR,
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"get_point_left_mode() should return the expected value for point index 3.");
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CHECK_MESSAGE(
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curve->get_point_right_mode(3) == Curve::TangentMode::TANGENT_LINEAR,
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"get_point_right_mode() should return the expected value for point index 3.");
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ERR_PRINT_OFF;
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CHECK_MESSAGE(
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Math::is_zero_approx(curve->get_point_right_tangent(300)),
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"get_point_right_tangent() should return the expected value for invalid point index 300.");
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CHECK_MESSAGE(
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curve->get_point_left_mode(-12345) == Curve::TangentMode::TANGENT_FREE,
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"get_point_left_mode() should return the expected value for invalid point index -12345.");
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ERR_PRINT_ON;
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CHECK_MESSAGE(
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curve->get_point_count() == 4,
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"Custom linear curve should contain the expected number of points.");
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CHECK_MESSAGE(
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Math::is_zero_approx(curve->sample(-0.1)),
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"Custom linear curve should return the expected value at offset -0.1.");
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CHECK_MESSAGE(
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curve->sample(0.1) == doctest::Approx((real_t)0.4),
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"Custom linear curve should return the expected value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample(0.4) == doctest::Approx((real_t)0.4),
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"Custom linear curve should return the expected value at offset 0.4.");
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CHECK_MESSAGE(
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curve->sample(0.7) == doctest::Approx((real_t)0.8),
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"Custom linear curve should return the expected value at offset 0.7.");
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CHECK_MESSAGE(
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curve->sample(1) == doctest::Approx(1),
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"Custom linear curve should return the expected value at offset 1.0.");
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CHECK_MESSAGE(
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curve->sample(2) == doctest::Approx(1),
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"Custom linear curve should return the expected value at offset 2.0.");
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CHECK_MESSAGE(
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Math::is_zero_approx(curve->sample_baked(-0.1)),
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"Custom linear curve should return the expected baked value at offset -0.1.");
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CHECK_MESSAGE(
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curve->sample_baked(0.1) == doctest::Approx((real_t)0.4),
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"Custom linear curve should return the expected baked value at offset 0.1.");
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CHECK_MESSAGE(
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curve->sample_baked(0.4) == doctest::Approx((real_t)0.4),
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"Custom linear curve should return the expected baked value at offset 0.4.");
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CHECK_MESSAGE(
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curve->sample_baked(0.7) == doctest::Approx((real_t)0.8),
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"Custom linear curve should return the expected baked value at offset 0.7.");
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CHECK_MESSAGE(
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curve->sample_baked(1) == doctest::Approx(1),
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"Custom linear curve should return the expected baked value at offset 1.0.");
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CHECK_MESSAGE(
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curve->sample_baked(2) == doctest::Approx(1),
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"Custom linear curve should return the expected baked value at offset 2.0.");
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ERR_PRINT_OFF;
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curve->remove_point(10);
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ERR_PRINT_ON;
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CHECK_MESSAGE(
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curve->sample(0.7) == doctest::Approx((real_t)0.8),
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"Custom free curve should return the expected value at offset 0.7 after removing point at invalid index 10.");
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CHECK_MESSAGE(
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curve->sample_baked(0.7) == doctest::Approx((real_t)0.8),
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"Custom free curve should return the expected baked value at offset 0.7 after removing point at invalid index 10.");
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}
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TEST_CASE("[Curve2D] Linear sampling should return exact value") {
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Ref<Curve2D> curve = memnew(Curve2D);
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real_t len = 2048.0;
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curve->add_point(Vector2(0, 0));
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curve->add_point(Vector2(len, 0));
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real_t baked_length = curve->get_baked_length();
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CHECK(len == baked_length);
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for (int i = 0; i < len; i++) {
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Vector2 pos = curve->sample_baked(i);
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CHECK_MESSAGE(Math::is_equal_approx(pos.x, i), "sample_baked should return exact value");
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}
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}
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TEST_CASE("[Curve3D] Linear sampling should return exact value") {
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Ref<Curve3D> curve = memnew(Curve3D);
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real_t len = 2048.0;
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curve->add_point(Vector3(0, 0, 0));
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curve->add_point(Vector3(len, 0, 0));
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ERR_PRINT_OFF
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real_t baked_length = curve->get_baked_length();
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ERR_PRINT_ON
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CHECK(len == baked_length);
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for (int i = 0; i < len; i++) {
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Vector3 pos = curve->sample_baked(i);
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CHECK_MESSAGE(Math::is_equal_approx(pos.x, i), "sample_baked should return exact value");
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}
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}
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} // namespace TestCurve
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#endif // TEST_CURVE_H
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