Time for action – customizing the BackgroundScreen class

To customize the background image for Mars Runner, perform the following steps:

1. 1. Download the 7089_09_GRAPICSPACK.zip file from the book's website and extract the contents to a temporary location.

2. 2. Select the Textures, Models, and HeightMaps folders from the temporary location and copy them to the Windows clipboard.

3. 3. In Visual Studio, right-click on Content (the name of the content project for a GSM project) and select Paste to add the folders and their contents to the project.

4. 4. Expand the Models folder in the content project and exclude all of the PNG files, along with the Sphere folder from the project.

5. 5. In the LoadContent() method of the BackgroundScreen class (located inside the Screens folder in the project), change the name of the texture that is loaded from "background" to @"textures\marsrunner". The new line should read:

   backgroundTexture = content.Load<Texture2D>@("textures\marsrunner");

6. 6. Launch the game and...