Added overlap detection against rectangles and points.

src/SlatedGameToolkit.Framework/Utilities/RectangleUtils.cs

@@ -1,4 +1,5 @@
 using System.Drawing;
+using System.Numerics;
 
 namespace SlatedGameToolkit.Framework.Utilities
 {
@@ -12,5 +13,21 @@ namespace SlatedGameToolkit.Framework.Utilities
             rect.Height *= multiplier;
             return rect;
         }
+
+        public static bool IsOverlapping(this RectangleF a, RectangleF b) {
+            if (a.Left > b.Right) return false;
+            if (a.Right < b.Left) return false;
+            if (a.Bottom > b.Top) return false;
+            if (a.Top < b.Bottom) return false;
+            return true;
+        }
+
+        public static bool IsWithin(this RectangleF rect, Vector2 vector) {
+            if (vector.X > rect.Right) return false;
+            if (vector.X < rect.Left) return false;
+            if (vector.Y > rect.Top) return false;
+            if (vector.Y < rect.Bottom) return false;
+            return true;
+        }
     }
 }