Time for action – beginning the MarsTrack class

To create a track for the player to drive on, perform the following steps:

1. 1. Add a new class file called MarsTrack.cs to the Mars Runner project.

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

   using Microsoft.Xna.Framework.Graphics;
   using Microsoft.Xna.Framework.Content;
   using Microsoft.Xna.Framework;

3. 3. Add fields to the MarsTrack class as follows:

   #region Fields
   private GraphicsDevice device;
   private Texture2D marsTexture;
   
   private List<VertexBuffer> vertexBuffers = new List<VertexBuffer>();
   private List<IndexBuffer> indexBuffers = new List<IndexBuffer>();
   
   private float terrainScale = 30f;
   
   private int[] track;
   #endregion

4. 4. Add a constructor to the MarsTrack class as follows:

   #region Constructor
   public MarsTrack(GraphicsDevice device, ContentManager content)
   {
       this.device = device;
       track = GenerateTrack(100);
       marsTexture = content.Load<Texture2D>(@"Textures\mars_surface...