added a utility method for getting the points contained in a rectangle

MLEM/Extensions/NumberExtensions.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using Microsoft.Xna.Framework;
 using MLEM.Misc;
 
@@ -158,6 +159,33 @@ namespace MLEM.Extensions {
             return rect;
         }
 
+        /// <summary>
+        /// Returns a set of <see cref="Point"/> values that are contained in the given <see cref="Rectangle"/>.
+        /// Note that <see cref="Rectangle.Left"/> and <see cref="Rectangle.Top"/> are inclusive, but <see cref="Rectangle.Right"/> and <see cref="Rectangle.Bottom"/> are not.
+        /// </summary>
+        /// <param name="area">The area whose points to get</param>
+        /// <returns>The points contained in the area</returns>
+        public static IEnumerable<Point> GetPoints(this Rectangle area) {
+            for (var x = area.Left; x < area.Right; x++) {
+                for (var y = area.Top; y < area.Bottom; y++)
+                    yield return new Point(x, y);
+            }
+        }
+
+        /// <summary>
+        /// Returns a set of <see cref="Vector2"/> values that are contained in the given <see cref="RectangleF"/>.
+        /// Note that <see cref="RectangleF.Left"/> and <see cref="RectangleF.Top"/> are inclusive, but <see cref="RectangleF.Right"/> and <see cref="RectangleF.Bottom"/> are not.
+        /// </summary>
+        /// <param name="area">The area whose points to get</param>
+        /// <param name="interval">The distance that should be traveled between each point that is to be returned</param>
+        /// <returns>The points contained in the area</returns>
+        public static IEnumerable<Vector2> GetPoints(this RectangleF area, float interval = 1) {
+            for (var x = area.Left; x < area.Right; x += interval) {
+                for (var y = area.Top; y < area.Bottom; y += interval)
+                    yield return new Vector2(x, y);
+            }
+        }
+
         /// <summary>
         /// Turns the given 3-dimensional vector into a 2-dimensional vector by chopping off the z coordinate.
         /// </summary>