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Swift 3 Game Development

You're reading from   Swift 3 Game Development Build iOS 10 Games with Swift 3.0

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Product type Paperback
Published in Feb 2017
Publisher Packt
ISBN-13 9781787127753
Length 258 pages
Edition 2nd Edition
Languages
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Author (1):
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Stephen Haney Stephen Haney
Author Profile Icon Stephen Haney
Stephen Haney
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Table of Contents (14) Chapters Close

Preface 1. Designing Games with Swift FREE CHAPTER 2. Sprites, Camera, Action! 3. Mix in the Physics 4. Adding Controls 5. Spawning Enemies, Coins, and Power-ups 6. Generating a Never-Ending World 7. Implementing Collision Events 8. Polishing to a Shine - HUD, Parallax Backgrounds, Particles, and More 9. Adding Menus and Sounds 10. Standing Out in the Crowd with Advanced Features 11. Choosing a Monetization Strategy 12. Integrating with Game Center 13. Ship It! Preparing for the App Store and Publication

Chapter 3. Mix in the Physics

SpriteKit includes a fully functional physics engine. It is easy to implement and very useful, as most mobile game designs require some level of physical interaction between game objects. In our game, we want to know when the player runs into the ground, an enemy, or a power-up. The physics system can track these collisions and execute our specific game code when any of these events occur. SpriteKit's physics engine can also apply gravity to the world-as well as the bounce and spin that can occur when sprites collide with each other-and creates realistic movement through impulses; and it does all of this before every single frame is drawn on the screen!

The topics in this chapter include the following:

  • Adopting a protocol for consistency
  • Organizing game objects into classes
  • Adding the player's character
  • Renovating the GameScene class
  • Physics bodies and gravity
  • Exploring physics simulation mechanics
  • Movement with impulses and forces
  • Bumping bees...
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