diff --git a/MBS.Framework/ArrayExtensions.cs b/MBS.Framework/ArrayExtensions.cs
new file mode 100644
index 0000000..881a3f3
--- /dev/null
+++ b/MBS.Framework/ArrayExtensions.cs
@@ -0,0 +1,51 @@
+//
+//  ArrayExtensions.cs
+//
+//  Author:
+//       Mike Becker <alcexhim@gmail.com>
+//
+//  Copyright (c) 2019 Mike Becker
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+using System;
+namespace MBS.Framework
+{
+	public static class ArrayExtensions
+	{
+		public static void Bisect<T>(this T[] array, int index, out T[] left, out T[] right)
+		{
+			left = new T[index];
+			right = new T[array.Length - index];
+
+			Array.Copy(array, 0, left, 0, left.Length);
+			Array.Copy(array, index, right, 0, right.Length);
+		}
+		public static void Array_RemoveAt<T>(ref T[] array, int index, int count = 1)
+		{
+			T[] old = (T[])array.Clone();
+
+			int start = index;
+			int length = count;
+			if (count < 0)
+			{
+				start = index + count;
+				length = Math.Abs(count);
+			}
+			Array.Resize<T>(ref array, old.Length - length);
+
+			Array.Copy(old, 0, array, 0, start);
+			Array.Copy(old, start + length, array, start, array.Length - start - length);
+		}
+	}
+}
diff --git a/MBS.Framework/Drawing/Rectangle.cs b/MBS.Framework/Drawing/Rectangle.cs
index d9045f0..9f2babd 100644
--- a/MBS.Framework/Drawing/Rectangle.cs
+++ b/MBS.Framework/Drawing/Rectangle.cs
@@ -34,6 +34,13 @@ namespace MBS.Framework.Drawing
 			Width = size.Width;
 			Height = size.Height;
 		}
+		public Rectangle(Vector2D topLeft, Vector2D bottomRight)
+		{
+			X = topLeft.X;
+			Y = topLeft.Y;
+			Width = (bottomRight.X - topLeft.X);
+			Height = (bottomRight.Y - topLeft.Y);
+		}
 		public Rectangle(double x, double y, double width, double height)
 		{
 			X = x;
@@ -71,6 +78,33 @@ namespace MBS.Framework.Drawing
 			return rect;
 		}
 
+		/// <summary>
+		/// Normalize this instance.
+		/// </summary>
+		/// <returns>The normalize.</returns>
+		public Rectangle Normalize()
+		{
+			double x = this.X;
+			double y = this.Y;
+			double r = this.Right;
+			double b = this.Bottom;
+
+			if (x > r)
+			{
+				double t = x;
+				x = r;
+				r = t;
+			}
+			if (y > b)
+			{
+				double t = y;
+				y = b;
+				b = t;
+			}
+
+			return new Rectangle(x, y, r - x, b - y);
+		}
+
 
 		public bool Contains(double x, double y)
 		{
@@ -80,6 +114,11 @@ namespace MBS.Framework.Drawing
 		{
 			return Contains(point.X, point.Y);
 		}
+		public bool Contains(Rectangle rect)
+		{
+			return rect.X >= X && rect.Y >= Y && rect.Right <= Right && rect.Bottom <= Bottom;
+		}
+
 
 		public int CompareTo(Rectangle other)
 		{
@@ -129,5 +168,13 @@ namespace MBS.Framework.Drawing
 		{
 			return base.Equals(obj);
 		}
+
+		public bool IntersectsWith(Rectangle rect)
+		{
+			return (rect.X < this.Right) &&
+			(this.X < (rect.Right)) &&
+			(rect.Y < this.Bottom) &&
+			(this.Y < rect.Bottom);
+		}
 	}
 }
diff --git a/MBS.Framework/Drawing/Vector.cs b/MBS.Framework/Drawing/Vector.cs
index 9f69160..84d25e1 100644
--- a/MBS.Framework/Drawing/Vector.cs
+++ b/MBS.Framework/Drawing/Vector.cs
@@ -23,5 +23,10 @@ namespace MBS.Framework.Drawing
 			mvarX = x;
 			mvarY = y;
 		}
+
+		public override string ToString()
+		{
+			return String.Format("({0}, {1})", X, Y);
+		}
 	}
 }
diff --git a/MBS.Framework/MBS.Framework.csproj b/MBS.Framework/MBS.Framework.csproj
index d6643ac..0e22737 100644
--- a/MBS.Framework/MBS.Framework.csproj
+++ b/MBS.Framework/MBS.Framework.csproj
@@ -46,6 +46,7 @@
     <Compile Include="Drawing\Color.cs" />
     <Compile Include="Drawing\Dimension.cs" />
     <Compile Include="Drawing\Vector.cs" />
+    <Compile Include="ArrayExtensions.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
-</Project>
\ No newline at end of file
+</Project>