Book Image

Getting Started with SpriteKit

By : Jorge Jordán
Book Image

Getting Started with SpriteKit

By: Jorge Jordán

Overview of this book

SpriteKit is Apple’s game engine to develop native iOS games. Strongly boosted by the Apple Inc., Cupertino, it has increased in popularity since its first release. This book shows you the solutions provided by SpriteKit to help you create any 2D game you can imagine and apply them to create animations that will highlight your existing apps. This book will give you the knowledge you need to apply SpriteKit to your existing apps or create your own games from scratch. Throughout the book, you will develop a complete game. The beautiful designs implemented in the game in this book will easily lead you to learn the basis of 2D game development, including creating and moving sprites, and adding them to a game scene. You will also discover how to apply advanced techniques such as collision detection, action execution, playing music, or running animations to give a more professional aspect to the game. You will finish your first game by learning how to add a main menu and a tutorial, as well as saving and loading data from and to the player’s device. Finally, you will find out how to apply some mobile games techniques such as accelerometer use or touch detection.
Table of Contents (13 chapters)
Getting Started with SpriteKit
About the Author
About the Reviewer

Collision management

In the previous section of this chapter, we learned the most important techniques to perform actions on nodes, namely movements. Now that everything is moving, we need a way to detect when the main character tries to cross a closed door (a wrong door) or an open one (a correct door).

Detecting and handling collisions is one of the main techniques in game development, as a vast percentage of games is founded upon enemies trying to hit our character in many different ways or the player trying to kill the enemies by shooting them, jumping at them, and so on. But, what is a collision?

Understanding collisions

In game development, a collision is an intersection between two or more elements in a scene. There are different ways to detect them, from the most basic's such as checking whether the area of the frame of each node intersects other nodes' frames, to the advanced ones such as making use of the physics engines that most of the games' engines (including SpriteKit) provide...