52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
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// SPDX-FileCopyrightText: 2021 Jorrit Rouwe
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// SPDX-License-Identifier: MIT
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#include "UnitTestFramework.h"
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#include <Jolt/Geometry/Plane.h>
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TEST_SUITE("PlaneTests")
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{
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TEST_CASE("TestPlaneSignedDistance")
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{
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Plane p = Plane::sFromPointAndNormal(Vec3(0, 2, 0), Vec3(0, 1, 0));
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CHECK(p.SignedDistance(Vec3(5, 7, 0)) == 5.0f);
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CHECK(p.SignedDistance(Vec3(5, -3, 0)) == -5.0f);
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}
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TEST_CASE("TestPlaneGetTransformed")
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{
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Mat44 transform = Mat44::sRotationTranslation(Quat::sRotation(Vec3(1.0f, 2.0f, 3.0f).Normalized(), 0.1f * JPH_PI), Vec3(5.0f, -7.0f, 9.0f));
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Vec3 point = Vec3(11.0f, 13.0f, 15.0f);
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Vec3 normal = Vec3(-3.0f, 5.0f, -7.0f).Normalized();
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Plane p1 = Plane::sFromPointAndNormal(point, normal).GetTransformed(transform);
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Plane p2 = Plane::sFromPointAndNormal(transform * point, transform.Multiply3x3(normal));
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CHECK_APPROX_EQUAL(p1.GetNormal(), p2.GetNormal());
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CHECK_APPROX_EQUAL(p1.GetConstant(), p2.GetConstant());
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}
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TEST_CASE("TestPlaneIntersectPlanes")
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{
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Plane p1 = Plane::sFromPointAndNormal(Vec3(0, 2, 0), Vec3(0, 1, 0));
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Plane p2 = Plane::sFromPointAndNormal(Vec3(3, 0, 0), Vec3(1, 0, 0));
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Plane p3 = Plane::sFromPointAndNormal(Vec3(0, 0, 4), Vec3(0, 0, 1));
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{
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Vec3 point;
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bool found = Plane::sIntersectPlanes(p1, p2, p3, point);
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CHECK(found);
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CHECK(point == Vec3(3, 2, 4));
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}
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{
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Plane p4 = Plane::sFromPointAndNormal(Vec3(0, 3, 0), Vec3(0, 1, 0));
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Vec3 point;
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bool found = Plane::sIntersectPlanes(p1, p2, p4, point);
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CHECK_FALSE(found);
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}
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}
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}
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