Technical requirements

We will also be using the following specific Unity engine API features:

• Static
• UnityEvents
• UnityActions

If you are unfamiliar with these concepts, please review Chapter 3, A Short Primer to Programming in Unity.

The code files for this chapter can be found on GitHub at https://github.com/PacktPublishing/Game-Development-Patterns-with-Unity-2021-Second-Edition/tree/main/Assets/Chapters/Chapter06.

Check out the following video to see the code in action: 
https://bit.ly/2U7wrCM.

If you find yourself having problems understanding the mechanism behind delegates, keep in mind that they are similar to function pointers in C/C++. In simple terms, a delegate points to a method. And delegates are often used to implement event handlers and callbacks. An action is a type of delegate that you can use with a method that has a void return type.