Time for action – the Camera class

1. Create a new class called Camera.cs in the "Tile Engine" project.

2. Add the following using directive to the top of the class file:

   using Microsoft.Xna.Framework;

3. Modify the declaration of the Camera class to make it public and static:

   public static class Camera

4. Add declarations to the Camera class:

   #region Declarations
   private static Vector2 position = Vector2.Zero;
   private static Vector2 viewPortSize = Vector2.Zero;
   private static Rectangle worldRectangle = new Rectangle(0, 0, 0, 0);
   #endregion

5. Add properties to the Camera class:

   #region Properties
   public static Vector2 Position
   {
       get { return position; }
       set
       {
           position = new Vector2(
               MathHelper.Clamp(value.X,
                   worldRectangle.X, worldRectangle.Width -
                   ViewPortWidth),
               MathHelper.Clamp(value.Y,
                   worldRectangle.Y, worldRectangle.Height - 
                   ViewPortHeight));
       }
   }
   
   public static Rectangle WorldRectangle
   {
      ...