Paris Buttfield-Addison & Jonathon Manning 
iOS Swift Game Development Cookbook [PDF ebook] 
Simple Solutions for Game Development Problems

Ready to make amazing games for the i Phone and i Pad? With Apples Swift programming language, its never been easier. This updated cookbook provides detailed recipes for managing a wide range of common i OS game-development issues, ranging from 2D and 3D math, Sprite Kit, and Open GL to augmented reality with ARKit.You get simple, direct solutions to common problems found in i OS game programming. Need to figure out how to give objects physical motion, or want a refresher on gaming-related math problems? This book provides sample projects and straightforward answers. All you need to get started is some familiarity with i OS development in Swift.