Join Kelley Hecker for an in-depth discussion in this video Introducing the singleton pattern, part of Unity: Scripting with C#.
- A design pattern that's not specific to Unity…but is still very useful in the context of games…is the singleton pattern.…A singleton is a class that can only have one instance…at any given time,…and it can be accessed from any other class.…Singletons are often used to store a game state,…or for manager classes,…such as a class that manages all the user interface…or plays all of the audio for the game.…The singleton is a powerful design pattern…that is relatively easy to implement.…We're going to create a base singleton class…that you can use for all the singletons you make.…
You can start by creating a new C# Script called Singleton.…Double-click to open it.…Go ahead and remove Start and Update,…since we won't be needing them.…We'll start by changing the declaration of the class…to be generic, by adding T after the class name,…where T is a MonoBehaviour.…A generic class just means that we won't know…the type of T until run time.…
For example, a generic list can be made…to hold game objects or transforms or integers,…
- Defining classes and variables
- Attaching scripts to objects
- Understanding MonoBehaviour class
- Using the Unity Scripting API
- Importing assets
- Using a singleton pattern to manage game state
- Creating an event
Skill Level Intermediate
Q: Why am I getting a script compile error when trying to load the exercise files?
A: This course was recorded in Unity 4.6, and Unity has since released Unity 5. There are two items to address for Unity 5 users.
Q: Why can't I see the Render Settings option in the Edit menu?
A: The Render Settings options have been moved in Unity 5. You can access them by going to the Window menu and choosing Lighting. In the window that loads, Render Settings can be found under the Scene tab.