Use iPhone as a game controller in a tvOS app?

Question

During the Apple TV announcement, the developers of Crossy Road demonstrated using an iPhone as a 2nd controller for an Apple tv game:

http://www.macrumors.com/2015/

Answer 1

I've developed a framework that supports the creation of software-based controllers and directs the input through a MFi profile, allowing you to have a single codebase that handles both software and hardware controllers. Many other features as well:

https://github.com/robreuss/VirtualGameController

NSNetservice is used for connectivity, and all Apple platforms are supported (iOS, OS X, watchOS and tvOS).

All features:

• Mimics API for Apple's GameController framework (GCController)
• Device motion support in software controllers
• Custom controller elements
• Custom element mapping
• WiFi-based, with Bluetooth fallback
• Controller-forwarding
• Works with Apple TV Simulator
• Unlimited number of hardware controllers on Apple TV (using controller forwarding)
• Ability to enhance inexpensive slide-on/form-fitting controllers with motion, extended profile elements and custom elements
• iCade controller support (mapped through the MFi profiles so they appear as MFi hardware)
• Easy-to-implement 3d touch on software controllers
• Leverage on-screen and Bluetooth keyboards using software controllers (including with Apple TV)
• Support for snapshots (compatible with Apple's snapshot format)
• Swift 2.1
• Framework-based