Time for action – drawing the floor

1. 1. Add the Draw region and the Draw() method to the Maze class:

   #region Draw
   public void Draw(Camera camera, BasicEffect effect)
   {
       effect.VertexColorEnabled = true;
       effect.World = Matrix.Identity;
       effect.View = camera.View;
       effect.Projection = camera.Projection;
   
       foreach (EffectPass pass in effect.CurrentTechnique.Passes)
       {
           pass.Apply();
           device.SetVertexBuffer(floorBuffer);
           device.DrawPrimitives(
               PrimitiveType.TriangleList, 
               0, 
               floorBuffer.VertexCount / 3);
       }
   }
   #endregion

2. 2. In the CubeChaserGame class, add the following declarations to the declarations area of the class:

   Camera camera;
   Maze maze;
   BasicEffect effect;

3. 3. In the Initialize() method of the CubeChaserGame class, initialize the camera, maze, and effect objects, placing this code before the call to b ase.Initialize():

   camera = new Camera(
       new Vector3(0.5f, 0.5f, 0.5f), 
       0, 
       GraphicsDevice.Viewport...