107 lines
4.5 KiB
C++
107 lines
4.5 KiB
C++
#include <jtest/jtest.hpp>
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#include <jtest/Unit.hpp>
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#include <jtest/jtest.hpp>
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#include <J3ML/Geometry/Triangle.hpp>
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jtest::Unit TriangleUnit {"Triangle"};
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namespace TriangleTests {
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inline void Define()
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{
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using namespace jtest;
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using J3ML::Geometry::Interval;
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using J3ML::Geometry::Triangle;
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TriangleUnit += Test("FaceNormal", [] {
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Triangle t(
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{-1, -1, -1},
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{0, 1, 0},
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{1, -1, 1}
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);
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jtest::check(t.FaceNormal() == Vector3{4, 0, -4});
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});
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TriangleUnit += Test("IntersectTriangle", []
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{
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Triangle xyTriangle(
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{0.0f, 0.0f, 0.0f},
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{1.0f, 1.0f, 0.0f},
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{2.0f, 0.0f, 0.0f}
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);
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// Triangle collides with itself
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jtest::check(Intersects(xyTriangle, xyTriangle));
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// Translate 1 towards x -- should collide
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jtest::check(Intersects(xyTriangle, xyTriangle.Translated(Vector3(1.0f, 0.0f, 0.0f))));
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// Translate 2 towards x -- should collide exactly on V1
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jtest::check(Intersects(xyTriangle, xyTriangle.Translated(Vector3(2.0f, 0.0f, 0.0f))));
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// Translate 2 towards negative x -- should collide exactly on V0
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jtest::check(Intersects(xyTriangle, xyTriangle.Translated(Vector3(-2.0f, 0.0f, 0.0f))));
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// Translate 3 towards x -- should not collide
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jtest::check(!Intersects(xyTriangle, xyTriangle.Translated(Vector3(3.0f, 0.0f, 0.0f))));
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// Translate 3 towards negative x -- should not collide
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jtest::check(!Intersects(xyTriangle, xyTriangle.Translated(Vector3(-3.0f, 0.0f, 0.0f))));
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// Translate 1 towards z -- should not collide
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jtest::check(!Intersects(xyTriangle, xyTriangle.Translated(Vector3(0.0f, 0.0f, 1.0f))));
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// Triangle collides with contained smaller triangle
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jtest::check(!Intersects(xyTriangle, xyTriangle.Scaled(Vector3(0.5f, 0.5f, 0.5f)).Translated(Vector3(0.25f, 0.25f, 0.0f))));
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Triangle zxTriangle (
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{0.0f, 0.0f, 0.0f},
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{1.0f, 0.0f, 1.0f},
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{0.0f, 0.0f, 2.0f}
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);
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// Should collide exactly on V0
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//jtest::check(Intersects(xyTriangle, zxTriangle));
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// Should collide across xyTriangle's edge and zxTriangle's face
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//jtest::check(Intersects(xyTriangle, zxTriangle.Translated(Vector3(0.0f, 0.0f, -1.0))));
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// Should collide exactly on V1
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//jtest::check(Intersects(xyTriangle, zxTriangle.Translated(Vector3(0.0f, 0.0f, -2.0))));
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// xyTriangle's face should be poked by zxTriangle's V0
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//jtest::check(Intersects(xyTriangle, zxTriangle.Translated(Vector3(1.0f, 1.0f, 0.0f))));
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// xyTriangle's face should be cut by zxTriangle
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//jtest::check(Intersects(xyTriangle, zxTriangle.Translated(Vector3(1.0f, 1.0f, -0.5f))));
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// Should not collide
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//jtest::check(!Intersects(xyTriangle, zxTriangle.Translated(Vector3(1.0f, 1.0f, 1.0f))));
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// Should not collide
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//jtest::check(!Intersects(xyTriangle, zxTriangle.Translated(Vector3(0.0f, 0.0f, -3.0f))));
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Triangle yxTriangle(
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{0.0f, 0.0f, 0.0f},
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{1.0f, 1.0f, 0.0f},
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{0.0f, 2.0f, 0.0f}
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);
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// Should collide on V0-V1 edge
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//jtest::check(Intersects(yxTriangle, yxTriangle));
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// Should not collide
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//jtest::check(!Intersects(xyTriangle, yxTriangle.Translated(Vector3(0.0f, 1.0f, 0.0f))));
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// Should not collide
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//jtest::check(!Intersects(yxTriangle, yxTriangle.Translated(Vector3(0.0f, 0.0f, 1.0f))));
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Triangle zyInvertedTriangle(
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{0.0f, 1.0f, -1.0f},
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{0.0f, 0.0f, 0.0f},
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{0.0f, 1.0f, 1.0f}
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);
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// Should collide exactly on V1
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//jtest::check(Intersects(xyTriangle, zyInvertedTriangle));
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// Should not collide
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//jtest::check(!Intersects(xyTriangle, zyInvertedTriangle.Translated(Vector3(0.0f, 1.0f, 0.0f))));
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// Should not collide
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//jtest::check(!Intersects(xyTriangle, zyInvertedTriangle.Translated(Vector3(0.25f, 0.75f, 0.0f))));
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});
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}
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inline void Run()
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{
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TriangleUnit.RunAll();
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}
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}
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