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  • Book Overview & Buying iOS Game Development By Example
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iOS Game Development By Example

iOS Game Development By Example

By : Chopra
4.3 (11)
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iOS Game Development By Example

iOS Game Development By Example

4.3 (11)
By: Chopra

Overview of this book

Game development has always been an exciting subject for game enthusiasts and players and iOS game development takes a big piece of this cake in terms of perpetuating growth and creativity. With the newest version of iOS and Sprite Kit, comes a series of breathtaking features such as Metal rendering support, camera nodes, and a new and improved Scene Editor. Conceptualizing a game is a dream for both young and old. Sprite Kit is an exciting framework supported by Apple within the iOS development environment. With Sprite Kit, creating stunning games has become an easy avenue. Starting with the basics of game development and swift language, this book will guide you to create your own fully functional game. Dive in and learn how to build and deploy a game on your iOS platform using Sprite Kit game engine. Go on a detailed journey of game development on the iOS platform using the Sprite Kit game engine. Learn about various features implemented in iOS 8 that further increase the essence of game development using Sprite Kit. Build an endless runner game and implement features like physics bodies, character animations, scoring and other essential elements in a game. You will successfully conceive a 2D game along with discovering the path to reach the pinnacle of iOS game development. By the end of the book, you will not only have created an endless runner game but also have in-depth knowledge of creating larger games on the iOS platform. Style and approach An easy-to-follow, comprehensive guide that makes your learning experience more intriguing by gradually developing a Sprite Kit game. This book discusses each topic in detail making sure you attain a clear vision of the subject.
Table of Contents (12 chapters)
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11
Index

Drawing order for a node tree


When a node tree renders, all its children also render. First, the parent is rendered, and then, its children, in the order they are added to parent. If you have many nodes to render in a scene, it is a difficult task to maintain them in order. For this, Sprite Kit provides a solution using the z position. You can set nodes to the z position by using the zPosition property.

When you take the z position into account, the node tree will be rendered as follows:

  • First of all, each node's global z position is calculated

  • Then, nodes are drawn in order from smallest z value to largest z value

  • If two nodes share the same z value, ancestors are rendered first, and siblings are rendered in child order

As you've just seen, Sprite Kit uses a deterministic rendering order, based on the height nodes and their positions in the node tree. But, because the rendering order is so deterministic, Sprite Kit may be unable to apply some rendering optimizations that it might otherwise apply...

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iOS Game Development By Example
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