Time for action – creating a game manager

Game manager classes will be a constant facet of any project you develop in the future, so let's learn how to properly create one, as follows:

1. Create a new C# script in the Scripts folder and name it GameBehavior.

Usually, this script would be named GameManager, but Unity reserves that name for its uses. If you ever create a script and a cogwheel icon shows up next to its name instead of the C# file icon, that tells you it's restricted.

2. Create a new empty game object in the Hierarchy by using Create | Create Empty, and name it GameManager.
3. Attach GameBehavior.cs to the GameManager object, as illustrated in the following screenshot:

Manager scripts, and other non-game files, are set up on empty objects to put them in the scene, even though they don't interact with the actual 3D space. 

4. Add the following code to GameBehavior:

public class...