Initial commit

C#/CodeWalker.Core/Utils/BoundingBoxes.cs

@@ -0,0 +1,39 @@
+using System;
+using SharpDX;
+
+namespace CodeWalker.Core.Utils
+{
+    public static class BoundingBoxExtensions
+    {
+        public static Vector3 Size(this BoundingBox bounds)
+        {
+            return new Vector3(
+                Math.Abs(bounds.Maximum.X - bounds.Minimum.X), 
+                Math.Abs(bounds.Maximum.Y - bounds.Minimum.Y),
+                Math.Abs(bounds.Maximum.Z - bounds.Minimum.Z));
+        }
+
+        public static Vector3 Center(this BoundingBox bounds)
+        {
+            return (bounds.Minimum + bounds.Maximum) * 0.5F;
+        }
+
+        public static BoundingBox Encapsulate(this BoundingBox box, BoundingBox bounds)
+        {
+            box.Minimum = Vector3.Min(box.Minimum, bounds.Minimum);
+            box.Maximum = Vector3.Max(box.Maximum, bounds.Maximum);
+            return box;
+        }
+
+        public static float Radius(this BoundingBox box)
+        {
+            var extents = (box.Maximum - box.Minimum) * 0.5F;
+            return extents.Length();
+        }
+
+        public static BoundingBox Expand(this BoundingBox b, float amount)
+        {
+            return new BoundingBox(b.Minimum - Vector3.One * amount, b.Maximum + Vector3.One * amount);
+        }
+    }
+}