Book Image

Swift Game Development - Third Edition

By : Siddharth Shekar, Haney
Book Image

Swift Game Development - Third Edition

By: Siddharth Shekar, Haney

Overview of this book

Swift is the perfect choice for game development. Developers are intrigued by Swift and want to make use of new features to develop their best games yet. Packed with best practices and easy-to-use examples, this book leads you step by step through the development of your first Swift game. The book starts by introducing Swift's best features – including its new ones for game development. Using SpriteKit, you will learn how to animate sprites and textures. Along the way, you will master physics, animations, and collision effects and how to build the UI aspects of a game. You will then work on creating a 3D game using the SceneKit framework. Further, we will look at how to add monetization and integrate Game Center. With iOS 12, we see the introduction of ARKit 2.0. This new version allows us to integrate shared experiences such as multiplayer augmented reality and persistent AR that is tied to a specific location so that the same information can be replicated on all connected devices. In the next section, we will dive into creating Augmented Reality games using SpriteKit and SceneKit. Then, finally, we will see how to create a Multipeer AR project to connect two devices, and send and receive data back and forth between those devices in real time. By the end of this book, you will be able to create your own iOS games using Swift and publish them on the iOS App Store.
Table of Contents (20 chapters)
19
Index

Chapter 7. Implementing Collision Events

So far, we have let the SpriteKit physics simulation detect and handle collisions between game objects. You have seen that Pierre Penguin sends enemies and coins flying off into space when he flies into them. This is because the physics simulation automatically monitors collisions and sets the post-collision trajectory and velocity of each colliding body. In this chapter, we will add our own game logic when two objects come into contact: taking damage from enemies, granting the player invulnerability after touching the star, and tracking points as the player collects coins. The game will become more fun to play as the game mechanics come to life.

The topics in this chapter include the following:

  • Learning the SpriteKit collision vocabulary
  • Adding contact events to our game
  • Player health and damage
  • Collecting coins
  • The Power-up Star logic