Sync daemon authority migration

Assets/Scripts/Tests/CultMathPrimitiveTests.cs

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+using CultMath;
+using NUnit.Framework;
+using static CultMath.math;
+
+public sealed class CultMathPrimitiveTests
+{
+    [Test]
+    public void Int2SupportsAetheriaGridArithmetic()
+    {
+        var cell = int2(2, 3);
+
+        Assert.AreEqual(new int2(3, 5), cell + int2(1, 2));
+        Assert.AreEqual(new float2(2.0f, 3.0f), (float2)cell);
+    }
+
+    [Test]
+    public void AetheriaMathRotatesItemDirectionsOnShipPlane()
+    {
+        var forward = float2(0, 1);
+
+        Assert.AreEqual(float2(-1, 0), AetheriaMath.Rotate(forward, ItemRotation.CounterClockwise));
+        Assert.AreEqual(float2(0, -1), AetheriaMath.Rotate(forward, ItemRotation.Reversed));
+        Assert.AreEqual(float2(1, 0), AetheriaMath.Rotate(forward, ItemRotation.Clockwise));
+    }
+
+    [Test]
+    public void ItemRotationDirectionsAreCultVectors()
+    {
+        Assert.AreEqual(float2(0, 1), ItemRotation.None.Direction());
+        Assert.AreEqual(float2(1, 0), ItemRotation.Clockwise.Direction());
+        Assert.AreEqual(float2(0, -1), ItemRotation.Reversed.Direction());
+        Assert.AreEqual(float2(-1, 0), ItemRotation.CounterClockwise.Direction());
+    }
+
+    [Test]
+    public void AetheriaMathProjectsUnityVectorsOntoShipPlane()
+    {
+        var world = new Unity.Mathematics.float3(2, 99, 3);
+
+        Assert.AreEqual(float2(2, 3), AetheriaMath.ToCultXZ(world));
+        Assert.AreEqual(new Unity.Mathematics.float3(2, 0, 3), AetheriaMath.ToUnityXZ(float2(2, 3)));
+    }
+
+    [Test]
+    public void AetheriaMathCalculatesStableAngles()
+    {
+        Assert.That(AetheriaMath.AngleDegrees(float2(1, 0), float2(0, 1)), Is.EqualTo(90).Within(0.0001f));
+        Assert.That(AetheriaMath.AngleRadians(float2(1, 0), float2(0, 1)), Is.EqualTo(PI / 2).Within(0.0001f));
+        Assert.That(AetheriaMath.AngleDegrees(float3(1, 0, 0), float3(1, 0, 0)), Is.EqualTo(0).Within(0.0001f));
+        Assert.That(AetheriaMath.AngleDegrees(float3(0, 0, 0), float3(1, 0, 0)), Is.EqualTo(0).Within(0.0001f));
+    }
+
+    [Test]
+    public void ColorMathUsesCultVectorsAndSharedUnityBridge()
+    {
+        var rgb = ColorMath.HsvToRgb(float3(0, 1, 1));
+
+        Assert.AreEqual(float3(1, 0, 0), rgb);
+        Assert.AreEqual(new Unity.Mathematics.float3(1, 0, 0), AetheriaMath.ToUnity(rgb));
+    }
+}