diff --git a/tests/test_path_follow_2d.h b/tests/test_path_follow_2d.h new file mode 100644 index 00000000000..28b62de5bbf --- /dev/null +++ b/tests/test_path_follow_2d.h @@ -0,0 +1,229 @@ +/*************************************************************************/ +/* test_path_follow_2d.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#ifndef TEST_PATH_FOLLOW_2D_H +#define TEST_PATH_FOLLOW_2D_H + +#include "scene/2d/path_2d.h" +#include "scene/resources/curve.h" + +#include "tests/test_macros.h" + +namespace TestPathFollow2D { + +TEST_CASE("[PathFollow2D] Sampling with unit offset") { + const Ref &curve = memnew(Curve2D()); + curve->add_point(Vector2(0, 0)); + curve->add_point(Vector2(100, 0)); + curve->add_point(Vector2(100, 100)); + curve->add_point(Vector2(0, 100)); + curve->add_point(Vector2(0, 0)); + const Ref &path = memnew(Path2D()); + path->set_curve(curve); + const Ref &path_follow_2d = memnew(PathFollow2D()); + path->add_child(path_follow_2d); + + path_follow_2d->set_unit_offset(0); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 0))); + + path_follow_2d->set_unit_offset(0.125); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 0))); + + path_follow_2d->set_unit_offset(0.25); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 0))); + + path_follow_2d->set_unit_offset(0.375); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 50))); + + path_follow_2d->set_unit_offset(0.5); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 100))); + + path_follow_2d->set_unit_offset(0.625); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 100))); + + path_follow_2d->set_unit_offset(0.75); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 100))); + + path_follow_2d->set_unit_offset(0.875); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 50))); + + path_follow_2d->set_unit_offset(1); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 0))); +} + +TEST_CASE("[PathFollow2D] Sampling with offset") { + const Ref &curve = memnew(Curve2D()); + curve->add_point(Vector2(0, 0)); + curve->add_point(Vector2(100, 0)); + curve->add_point(Vector2(100, 100)); + curve->add_point(Vector2(0, 100)); + curve->add_point(Vector2(0, 0)); + const Ref &path = memnew(Path2D()); + path->set_curve(curve); + const Ref &path_follow_2d = memnew(PathFollow2D()); + path->add_child(path_follow_2d); + + path_follow_2d->set_offset(0); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 0))); + + path_follow_2d->set_offset(50); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 0))); + + path_follow_2d->set_offset(100); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 0))); + + path_follow_2d->set_offset(150); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 50))); + + path_follow_2d->set_offset(200); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 100))); + + path_follow_2d->set_offset(250); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 100))); + + path_follow_2d->set_offset(300); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 100))); + + path_follow_2d->set_offset(350); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 50))); + + path_follow_2d->set_offset(400); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 0))); +} + +TEST_CASE("[PathFollow2D] Removal of a point in curve") { + const Ref &curve = memnew(Curve2D()); + curve->add_point(Vector2(0, 0)); + curve->add_point(Vector2(100, 0)); + curve->add_point(Vector2(100, 100)); + const Ref &path = memnew(Path2D()); + path->set_curve(curve); + const Ref &path_follow_2d = memnew(PathFollow2D()); + path->add_child(path_follow_2d); + + path_follow_2d->set_unit_offset(0.5); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 0))); + + curve->remove_point(1); + + CHECK_MESSAGE( + path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 50)), + "Path follow's position should be updated after removing a point from the curve"); +} + +TEST_CASE("[PathFollow2D] Setting h_offset and v_offset") { + const Ref &curve = memnew(Curve2D()); + curve->add_point(Vector2(0, 0)); + curve->add_point(Vector2(100, 0)); + const Ref &path = memnew(Path2D()); + path->set_curve(curve); + const Ref &path_follow_2d = memnew(PathFollow2D()); + path->add_child(path_follow_2d); + + path_follow_2d->set_unit_offset(0.5); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 0))); + + path_follow_2d->set_h_offset(25); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(75, 0))); + + path_follow_2d->set_v_offset(25); + CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(75, 25))); +} + +TEST_CASE("[PathFollow2D] Unit offset out of range") { + const Ref &curve = memnew(Curve2D()); + curve->add_point(Vector2(0, 0)); + curve->add_point(Vector2(100, 0)); + const Ref &path = memnew(Path2D()); + path->set_curve(curve); + const Ref &path_follow_2d = memnew(PathFollow2D()); + path->add_child(path_follow_2d); + + path_follow_2d->set_loop(true); + + path_follow_2d->set_unit_offset(-0.3); + CHECK_MESSAGE( + path_follow_2d->get_unit_offset() == 0.7, + "Unit Offset should loop back from the end in the opposite direction"); + + path_follow_2d->set_unit_offset(1.3); + CHECK_MESSAGE( + path_follow_2d->get_unit_offset() == 0.3, + "Unit Offset should loop back from the end in the opposite direction"); + + path_follow_2d->set_loop(false); + + path_follow_2d->set_unit_offset(-0.3); + CHECK_MESSAGE( + path_follow_2d->get_unit_offset() == 0, + "Unit Offset should be clamped at 0"); + + path_follow_2d->set_unit_offset(1.3); + CHECK_MESSAGE( + path_follow_2d->get_unit_offset() == 1, + "Unit Offset should be clamped at 1"); +} + +TEST_CASE("[PathFollow2D] Offset out of range") { + const Ref &curve = memnew(Curve2D()); + curve->add_point(Vector2(0, 0)); + curve->add_point(Vector2(100, 0)); + const Ref &path = memnew(Path2D()); + path->set_curve(curve); + const Ref &path_follow_2d = memnew(PathFollow2D()); + path->add_child(path_follow_2d); + + path_follow_2d->set_loop(true); + + path_follow_2d->set_offset(-50); + CHECK_MESSAGE( + path_follow_2d->get_offset() == 50, + "Offset should loop back from the end in the opposite direction"); + + path_follow_2d->set_offset(150); + CHECK_MESSAGE( + path_follow_2d->get_offset() == 50, + "Offset should loop back from the end in the opposite direction"); + + path_follow_2d->set_loop(false); + + path_follow_2d->set_offset(-50); + CHECK_MESSAGE( + path_follow_2d->get_offset() == 0, + "Offset should be clamped at 0"); + + path_follow_2d->set_offset(150); + CHECK_MESSAGE( + path_follow_2d->get_offset() == 100, + "Offset should be clamped at 1"); +} +} // namespace TestPathFollow2D + +#endif // TEST_PATH_FOLLOW_2D_H