43 lines
1.4 KiB
C#
43 lines
1.4 KiB
C#
using System.Numerics;
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using AcDream.App.Rendering;
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using AcDream.Core.Physics;
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using Xunit;
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namespace AcDream.App.Tests.Rendering;
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public class PhysicsCameraCollisionProbeTests
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{
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// The probe must convert the desired eye path (where the SPHERE CENTER
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// should travel) into the foot-capsule path InitPath expects (which offsets
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// sphere0 up by radius), then invert it on the result. Verify the round trip.
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[Fact]
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public void SpherePathOffset_RoundTrips()
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{
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var p = new Vector3(10f, 20f, 30f);
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const float r = 0.3f;
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var path = PhysicsCameraCollisionProbe.ToSpherePath(p, r);
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Assert.Equal(p.Z - r, path.Z, 5);
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Assert.Equal(p.X, path.X, 5);
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Assert.Equal(p.Y, path.Y, 5);
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var back = PhysicsCameraCollisionProbe.FromSpherePath(path, r);
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Assert.Equal(p.X, back.X, 5);
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Assert.Equal(p.Y, back.Y, 5);
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Assert.Equal(p.Z, back.Z, 5);
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}
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// cellId == 0 means "no starting cell" — the probe must short-circuit and
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// return the desired eye without touching the engine.
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[Fact]
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public void SweepEye_NoStartingCell_ReturnsDesiredEyeUnchanged()
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{
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var probe = new PhysicsCameraCollisionProbe(new PhysicsEngine());
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var pivot = new Vector3(0f, 0f, 1.5f);
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var eye = new Vector3(-2f, 0f, 2.2f);
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var result = probe.SweepEye(pivot, eye, cellId: 0, selfEntityId: 0);
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Assert.Equal(eye, result);
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}
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}
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