Pathfinder: GameplayKit Pathfinding Basics

Last Revision:	Version 1.1, 2016-09-28 Updated to Swift 3 (Full Revision History)
Build Requirements:	Xcode 8 with OS X 10.11, iOS 9.0, or tvOS 9.0 SDK
Runtime Requirements:	OS X 10.11, iOS 9.0, tvOS 9.0, and later

This sample demonstrates how to use GameplayKit’s pathfinding features to map out a game world and find paths through it.