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Swift Game Development

Swift Game Development

By : Siddharth Shekar, Haney
2.7 (3)
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Swift Game Development

Swift Game Development

2.7 (3)
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)
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19
Index

Animation—movement, scaling, and rotation

Before we dive back in to sprite theory, we should have some fun with our blue square. SpriteKit uses action objects to move sprites around the screen. Consider this example: if our goal is to move the square across the screen, we must first create a new action object to describe the animation. Then, we instruct our sprite node to execute the action. I will illustrate this concept with many examples in the chapter. For now, add this code in the didMove function, below the self.addChild(mySprite) line:

// Create a new constant for our action instance 
// Use the move action to provide a goal position for a node 
// SpriteKit will tween to the new position over the course of the 
// duration, in this case 5 seconds 
let demoAction = SKAction.move(to: CGPoint(x: 300, y: 150), 
duration: 3) 
// Tell our square node to execute the action! 
mySprite.run(demoAction) 

Run the project. You will see our blue square slide across the screen toward the...

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