generated from hertog/godot-module-template
115 lines
4.9 KiB
C++
115 lines
4.9 KiB
C++
/**************************************************************************/
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/* test_csg.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_CSG_H
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#define TEST_CSG_H
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#include "../csg.h"
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#include "../csg_shape.h"
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#include "tests/test_macros.h"
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namespace TestCSG {
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TEST_CASE("[SceneTree][CSG] CSGPolygon3D") {
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SUBCASE("[SceneTree][CSG] CSGPolygon3D: using accurate path tangent for polygon rotation") {
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const float polygon_radius = 10.0f;
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const Vector3 expected_min_bounds = Vector3(-polygon_radius, -polygon_radius, 0);
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const Vector3 expected_max_bounds = Vector3(100 + polygon_radius, polygon_radius, 100);
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const AABB expected_aabb = AABB(expected_min_bounds, expected_max_bounds - expected_min_bounds);
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Ref<Curve3D> curve;
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curve.instantiate();
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curve->add_point(
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// p_position
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Vector3(0, 0, 0),
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// p_in
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Vector3(),
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// p_out
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Vector3(0, 0, 60));
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curve->add_point(
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// p_position
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Vector3(100, 0, 100),
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// p_in
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Vector3(0, 0, -60),
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// p_out
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Vector3());
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Path3D *path = memnew(Path3D);
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path->set_curve(curve);
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CSGPolygon3D *csg_polygon_3d = memnew(CSGPolygon3D);
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SceneTree::get_singleton()->get_root()->add_child(csg_polygon_3d);
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csg_polygon_3d->add_child(path);
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csg_polygon_3d->set_path_node(csg_polygon_3d->get_path_to(path));
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csg_polygon_3d->set_mode(CSGPolygon3D::Mode::MODE_PATH);
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PackedVector2Array polygon;
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polygon.append(Vector2(-polygon_radius, 0));
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polygon.append(Vector2(0, polygon_radius));
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polygon.append(Vector2(polygon_radius, 0));
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polygon.append(Vector2(0, -polygon_radius));
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csg_polygon_3d->set_polygon(polygon);
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csg_polygon_3d->set_path_rotation(CSGPolygon3D::PathRotation::PATH_ROTATION_PATH);
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csg_polygon_3d->set_path_rotation_accurate(true);
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// Minimize the number of extrusions.
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// This decreases the number of samples taken from the curve.
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// Having fewer samples increases the inaccuracy of the line between samples as an approximation of the tangent of the curve.
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// With correct polygon orientation, the bounding box for the given curve should be independent of the number of extrusions.
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csg_polygon_3d->set_path_interval_type(CSGPolygon3D::PathIntervalType::PATH_INTERVAL_DISTANCE);
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csg_polygon_3d->set_path_interval(1000.0f);
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// Call get_brush_faces to force the bounding box to update.
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csg_polygon_3d->get_brush_faces();
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CHECK(csg_polygon_3d->get_aabb().is_equal_approx(expected_aabb));
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// Perform the bounding box check again with a greater number of extrusions.
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csg_polygon_3d->set_path_interval(1.0f);
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csg_polygon_3d->get_brush_faces();
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CHECK(csg_polygon_3d->get_aabb().is_equal_approx(expected_aabb));
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csg_polygon_3d->remove_child(path);
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SceneTree::get_singleton()->get_root()->remove_child(csg_polygon_3d);
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memdelete(csg_polygon_3d);
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memdelete(path);
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}
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}
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} // namespace TestCSG
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#endif // TEST_CSG_H
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