added grass painting

CodeWalker.Core/Utils/BoundingBoxes.cs

@@ -0,0 +1,34 @@
+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();
+        }
+    }
+}

CodeWalker.Core/Utils/Vectors.cs

@@ -4,18 +4,17 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using CodeWalker.GameFiles;
 
 namespace CodeWalker
 {
     public static class Vectors
     {
-
         public static Vector3 XYZ(this Vector4 v)
         {
             return new Vector3(v.X, v.Y, v.Z);
         }
 
-
         public static Vector3 Round(this Vector3 v)
         {
             return new Vector3((float)Math.Round(v.X), (float)Math.Round(v.Y), (float)Math.Round(v.Z));
@@ -25,7 +24,6 @@ namespace CodeWalker
         {
             return new Vector4((float)Math.Floor(v.X), (float)Math.Floor(v.Y), (float)Math.Floor(v.Z), (float)Math.Floor(v.W));
         }
-
     }