Add Box/Boxd data structures

Author: LogicAndTrick

Sledge.Formats.Tests/Geometry/TestBox.cs

@@ -0,0 +1,79 @@
+using System.Linq;
+using System.Numerics;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Sledge.Formats.Geometric;
+
+namespace Sledge.Formats.Tests.Geometry;
+
+[TestClass]
+public class TestBox
+{
+    [TestMethod]
+    public void TestConstructors()
+    {
+        var a = new Vector3(-10, -20, -30);
+        var b = new Vector3(10, 20, 30);
+        var box = new Box(a, b);
+        Assert.AreEqual(a, box.Start);
+        Assert.AreEqual(b, box.End);
+        Assert.AreEqual(box, new Box(a with { X = b.X }, b with { X = a.X }));
+        Assert.AreEqual(box, new Box(a with { Y = b.Y }, b with { Y = a.Y }));
+        Assert.AreEqual(box, new Box(a with { Z = b.Z }, b with { Z = a.Z }));
+        Assert.AreEqual(box, new Box(new[] { box, box, box }));
+
+        Assert.AreEqual(Vector3.Zero, box.Center);
+        Assert.AreEqual(b.X * 2, box.Width);
+        Assert.AreEqual(b.Y * 2, box.Length);
+        Assert.AreEqual(b.Z * 2, box.Height);
+        Assert.AreEqual(b.X * 2, box.SmallestDimension);
+        Assert.AreEqual(b.Z * 2, box.LargestDimension);
+        Assert.AreEqual(b * 2, box.Dimensions);
+    }
+
+    [TestMethod]
+    public void TestIsEmpty()
+    {
+        Assert.IsTrue(Box.Empty.IsEmpty());
+        Assert.IsTrue(new Box(Vector3.One, Vector3.One).IsEmpty());
+        Assert.IsFalse(new Box(Vector3.One, Vector3.One * 2).IsEmpty());
+        Assert.IsFalse(new Box(Vector3.One, Vector3.One * 2).IsEmpty(1));
+        Assert.IsTrue(new Box(Vector3.One, Vector3.One * 2).IsEmpty(1.01f));
+    }
+
+    [TestMethod]
+    public void TestGetBoxPoints()
+    {
+        var a = new Vector3(-10, -20, -30);
+        var b = new Vector3(10, 20, 30);
+        var box = new Box(a, b);
+        var expected = new[]
+        {
+            a, b,
+            a with { X = b.X },
+            a with { Y = b.Y },
+            a with { Z = b.Z },
+            b with { X = a.X },
+            b with { Y = a.Y },
+            b with { Z = a.Z },
+        };
+        CollectionAssert.AreEquivalent(expected, box.GetBoxPoints().ToList());
+    }
+
+    [TestMethod]
+    public void TestGetBoxPlanes()
+    {
+        var a = new Vector3(-10, -20, -30);
+        var b = new Vector3(10, 20, 30);
+        var box = new Box(a, b);
+        var expected = new[]
+        {
+            new Plane(Vector3.UnitX, b.X),
+            new Plane(Vector3.UnitY, b.Y),
+            new Plane(Vector3.UnitZ, b.Z),
+            new Plane(-Vector3.UnitX, -a.X),
+            new Plane(-Vector3.UnitY, -a.Y),
+            new Plane(-Vector3.UnitZ, -a.Z),
+        };
+        CollectionAssert.AreEquivalent(expected, box.GetBoxPlanes().ToList());
+    }
+}

Sledge.Formats.Tests/Geometry/TestPlane.cs

@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
 using Sledge.Formats.Geometric;
 using Sledge.Formats.Geometric.Precision;
 

Sledge.Formats.Tests/Geometry/TestPolygon.cs

@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Numerics;
-using System.Text;
-using System.Threading.Tasks;
+using System.Numerics;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using Sledge.Formats.Geometric;
 using Sledge.Formats.Geometric.Precision;

Sledge.Formats.Tests/Geometry/TestPolyhedron.cs

@@ -1,11 +1,6 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
+using System.Linq;
 using System.Numerics;
-using System.Text;
-using System.Threading.Tasks;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using Sledge.Formats.Geometric;
 using Sledge.Formats.Geometric.Precision;
 
 namespace Sledge.Formats.Tests.Geometry;