Plugin for Unity to interact with iOS Game Center. There’s already a bunch of these, but this one focuses on saving and loading games which none of the other plugins seem to do.
This is a quick project I wipped up in order to add Game Center saving/loading to my Unity game. There’s tons of Game Center plugins for Unity, but none of them mention any ability to save/load.
The Example folder is a complete Unity project that should work out of the box. If you deploy this Unity project to your device, you should get an error from Apple saying that iCloud hasn’t been configured. That means the plugin works!
To use in your own Unity project, open the Xcode project and select an armXX target (i.e. not a simulator target) and build (Project -> Build or just Command-B). The framework will be built rather quickly—if you’re experienced using Xcode the speed may surprise you and lead you to believe something went wrong. As long as you don’t get any errors, the Framework should’ve built and will be available in the Products folder.
Right click on the Framework and Show in Finder. Move the framework into your Unity project at the following path: Assets->Plugins->iOS. Unity will only include this framework in builds that target iOS/tvOS.
Add the FrameworkHandler.cs script to your Unity project. Assets->Scripts would be a good place. Ignore the fact that I just placed it directly in the Assets folder in my example Unity project—do as I say not as I do.
The FrameworkHandler.cs exposes three static methods, saveGame, loadGame, and initializeDelegate. It also exposed two callbacks, GameLoadedHandler and GameSavedHandler. Hopefully, the example GameHandler.cs script in the example Unity project will explain how to use these methods.
It is worth pointing out that this plugin doesn’t initialize the Game Center user. In the example Unity project I am using Unity’s built in Social APIs to do the user initialization.
All this does is load/save a game named default. Not very exciting, but it’s a start. The FrameworkHandler.cs should really be renamed to something meaningful as that is the class that the Unity developer would interact with when using this plugin.
I am not the most experienced C# developer, so the way I implemented callbacks to get the save/load results maybe could use improving.
This code is hereby released into public domain. Feel free to submit a pull-request if you’re up to maturing this.