set up PathFollow2D unit test
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Angad Kambli
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/*************************************************************************/
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/* test_path_follow_2d.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) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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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_PATH_FOLLOW_2D_H
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#define TEST_PATH_FOLLOW_2D_H
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#include "scene/2d/path_2d.h"
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#include "scene/resources/curve.h"
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#include "tests/test_macros.h"
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namespace TestPathFollow2D {
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TEST_CASE("[PathFollow2D] Sampling with unit offset") {
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const Ref<Curve2D> &curve = memnew(Curve2D());
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curve->add_point(Vector2(0, 0));
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curve->add_point(Vector2(100, 0));
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curve->add_point(Vector2(100, 100));
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curve->add_point(Vector2(0, 100));
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curve->add_point(Vector2(0, 0));
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const Ref<Path2D> &path = memnew(Path2D());
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path->set_curve(curve);
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const Ref<PathFollow2D> &path_follow_2d = memnew(PathFollow2D());
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path->add_child(path_follow_2d);
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path_follow_2d->set_unit_offset(0);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 0)));
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path_follow_2d->set_unit_offset(0.125);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 0)));
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path_follow_2d->set_unit_offset(0.25);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 0)));
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path_follow_2d->set_unit_offset(0.375);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 50)));
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path_follow_2d->set_unit_offset(0.5);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 100)));
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path_follow_2d->set_unit_offset(0.625);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 100)));
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path_follow_2d->set_unit_offset(0.75);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 100)));
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path_follow_2d->set_unit_offset(0.875);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 50)));
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path_follow_2d->set_unit_offset(1);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 0)));
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}
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TEST_CASE("[PathFollow2D] Sampling with offset") {
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const Ref<Curve2D> &curve = memnew(Curve2D());
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curve->add_point(Vector2(0, 0));
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curve->add_point(Vector2(100, 0));
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curve->add_point(Vector2(100, 100));
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curve->add_point(Vector2(0, 100));
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curve->add_point(Vector2(0, 0));
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const Ref<Path2D> &path = memnew(Path2D());
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path->set_curve(curve);
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const Ref<PathFollow2D> &path_follow_2d = memnew(PathFollow2D());
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path->add_child(path_follow_2d);
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path_follow_2d->set_offset(0);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 0)));
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path_follow_2d->set_offset(50);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 0)));
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path_follow_2d->set_offset(100);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 0)));
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path_follow_2d->set_offset(150);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 50)));
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path_follow_2d->set_offset(200);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 100)));
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path_follow_2d->set_offset(250);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 100)));
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path_follow_2d->set_offset(300);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 100)));
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path_follow_2d->set_offset(350);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 50)));
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path_follow_2d->set_offset(400);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(0, 0)));
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}
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TEST_CASE("[PathFollow2D] Removal of a point in curve") {
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const Ref<Curve2D> &curve = memnew(Curve2D());
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curve->add_point(Vector2(0, 0));
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curve->add_point(Vector2(100, 0));
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curve->add_point(Vector2(100, 100));
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const Ref<Path2D> &path = memnew(Path2D());
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path->set_curve(curve);
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const Ref<PathFollow2D> &path_follow_2d = memnew(PathFollow2D());
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path->add_child(path_follow_2d);
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path_follow_2d->set_unit_offset(0.5);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(100, 0)));
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curve->remove_point(1);
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CHECK_MESSAGE(
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path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 50)),
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"Path follow's position should be updated after removing a point from the curve");
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}
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TEST_CASE("[PathFollow2D] Setting h_offset and v_offset") {
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const Ref<Curve2D> &curve = memnew(Curve2D());
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curve->add_point(Vector2(0, 0));
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curve->add_point(Vector2(100, 0));
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const Ref<Path2D> &path = memnew(Path2D());
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path->set_curve(curve);
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const Ref<PathFollow2D> &path_follow_2d = memnew(PathFollow2D());
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path->add_child(path_follow_2d);
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path_follow_2d->set_unit_offset(0.5);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(50, 0)));
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path_follow_2d->set_h_offset(25);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(75, 0)));
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path_follow_2d->set_v_offset(25);
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CHECK(path_follow_2d->get_transform().get_origin().is_equal_approx(Vector2(75, 25)));
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}
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TEST_CASE("[PathFollow2D] Unit offset out of range") {
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const Ref<Curve2D> &curve = memnew(Curve2D());
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curve->add_point(Vector2(0, 0));
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curve->add_point(Vector2(100, 0));
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const Ref<Path2D> &path = memnew(Path2D());
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path->set_curve(curve);
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const Ref<PathFollow2D> &path_follow_2d = memnew(PathFollow2D());
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path->add_child(path_follow_2d);
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path_follow_2d->set_loop(true);
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path_follow_2d->set_unit_offset(-0.3);
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CHECK_MESSAGE(
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path_follow_2d->get_unit_offset() == 0.7,
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"Unit Offset should loop back from the end in the opposite direction");
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path_follow_2d->set_unit_offset(1.3);
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CHECK_MESSAGE(
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path_follow_2d->get_unit_offset() == 0.3,
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"Unit Offset should loop back from the end in the opposite direction");
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path_follow_2d->set_loop(false);
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path_follow_2d->set_unit_offset(-0.3);
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CHECK_MESSAGE(
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path_follow_2d->get_unit_offset() == 0,
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"Unit Offset should be clamped at 0");
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path_follow_2d->set_unit_offset(1.3);
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CHECK_MESSAGE(
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path_follow_2d->get_unit_offset() == 1,
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"Unit Offset should be clamped at 1");
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}
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TEST_CASE("[PathFollow2D] Offset out of range") {
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const Ref<Curve2D> &curve = memnew(Curve2D());
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curve->add_point(Vector2(0, 0));
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curve->add_point(Vector2(100, 0));
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const Ref<Path2D> &path = memnew(Path2D());
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path->set_curve(curve);
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const Ref<PathFollow2D> &path_follow_2d = memnew(PathFollow2D());
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path->add_child(path_follow_2d);
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path_follow_2d->set_loop(true);
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path_follow_2d->set_offset(-50);
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CHECK_MESSAGE(
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path_follow_2d->get_offset() == 50,
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"Offset should loop back from the end in the opposite direction");
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path_follow_2d->set_offset(150);
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CHECK_MESSAGE(
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path_follow_2d->get_offset() == 50,
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"Offset should loop back from the end in the opposite direction");
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path_follow_2d->set_loop(false);
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path_follow_2d->set_offset(-50);
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CHECK_MESSAGE(
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path_follow_2d->get_offset() == 0,
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"Offset should be clamped at 0");
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path_follow_2d->set_offset(150);
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CHECK_MESSAGE(
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path_follow_2d->get_offset() == 100,
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"Offset should be clamped at 1");
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}
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} // namespace TestPathFollow2D
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#endif // TEST_PATH_FOLLOW_2D_H
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