forked from mirror/DotRecast
88 lines
3.3 KiB
C#
88 lines
3.3 KiB
C#
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/*
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recast4j copyright (c) 2021 Piotr Piastucki piotr@jtilia.org
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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using NUnit.Framework;
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namespace DotRecast.Detour.Test;
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public class PolygonByCircleConstraintTest {
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private readonly PolygonByCircleConstraint constraint = new PolygonByCircleConstraint.StrictPolygonByCircleConstraint();
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[Test]
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public void shouldHandlePolygonFullyInsideCircle() {
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float[] polygon = { -2, 0, 2, 2, 0, 2, 2, 0, -2, -2, 0, -2 };
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float[] center = { 1, 0, 1 };
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float[] constrained = constraint.aply(polygon, center, 6);
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Assert.That(constrained, Is.EqualTo(polygon));
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}
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[Test]
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public void shouldHandleVerticalSegment() {
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int expectedSize = 21;
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float[] polygon = { -2, 0, 2, 2, 0, 2, 2, 0, -2, -2, 0, -2 };
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float[] center = { 2, 0, 0 };
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float[] constrained = constraint.aply(polygon, center, 3);
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Assert.That(constrained.Length, Is.EqualTo(expectedSize));
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Assert.That(constrained, Is.SupersetOf(new[] {2f, 0f, 2f, 2f, 0f, -2f}));
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}
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[Test]
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public void shouldHandleCircleFullyInsidePolygon() {
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int expectedSize = 12 * 3;
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float[] polygon = { -4, 0, 0, -3, 0, 3, 2, 0, 3, 3, 0, -3, -2, 0, -4 };
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float[] center = { -1, 0, -1 };
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float[] constrained = constraint.aply(polygon, center, 2);
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Assert.That(constrained.Length, Is.EqualTo(expectedSize));
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for (int i = 0; i < expectedSize; i += 3) {
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float x = constrained[i] + 1;
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float z = constrained[i + 2] + 1;
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Assert.That(x * x + z * z, Is.EqualTo(4).Within(1e-4f));
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}
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}
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[Test]
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public void shouldHandleCircleInsidePolygon() {
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int expectedSize = 9 * 3;
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float[] polygon = { -4, 0, 0, -3, 0, 3, 2, 0, 3, 3, 0, -3, -2, 0, -4 };
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float[] center = { -2, 0, -1 };
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float[] constrained = constraint.aply(polygon, center, 3);
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Assert.That(constrained.Length, Is.EqualTo(expectedSize));
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Assert.That(constrained, Is.SupersetOf(new[] { -2f, 0f, -4f, -4f, 0f, 0f, -3.4641016f, 0.0f, 1.6076951f, -2.0f, 0.0f, 2.0f }));
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}
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[Test]
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public void shouldHandleCircleOutsidePolygon()
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{
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int expectedSize = 7 * 3;
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float[] polygon = { -4, 0, 0, -3, 0, 3, 2, 0, 3, 3, 0, -3, -2, 0, -4 };
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float[] center = { 4, 0, 0 };
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float[] constrained = constraint.aply(polygon, center, 4);
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Assert.That(constrained.Length, Is.EqualTo(expectedSize));
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Assert.That(constrained, Is.SupersetOf(new[] { 1.5358982f, 0f, 3f, 2f, 0f, 3f, 3f, 0f, -3f }));
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}
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}
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