A SpriteKit extension that adds spring animations matching UIKit's UIView spring animation API.
SpriteKit-Spring is a Swift library that extends SpriteKit's SKAction class to provide spring animations, replicating the smooth, physics-based animation API available in UIKit's UIView. It solves the problem of adding natural, bouncy motion to SpriteKit nodes without manually implementing spring physics, making it easier to create polished animations in 2D games and interactive iOS apps.
iOS developers and game creators using SpriteKit who want to implement smooth, spring-based animations for nodes, particularly those familiar with UIKit's animation APIs seeking similar functionality in their SpriteKit projects.
Developers choose SpriteKit-Spring because it provides a direct, easy-to-use API that mirrors UIKit's spring animations, reducing development time and ensuring consistency with iOS design patterns, all while maintaining compatibility with older iOS versions.
SpriteKit API reproducing UIView's spring animations with SKAction
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Uses the same parameter names and behavior as UIView spring animations, reducing the learning curve for developers already skilled in UIKit, as highlighted in the README's examples.
Provides low-level animateKeyPath methods to animate any CGFloat key path on SKNode subclasses, enabling flexible custom property animations without manual physics implementations.
Supports iOS 7 and later with installation options for direct file inclusion or CocoaPods framework, ensuring it works across a wide range of devices and projects.
Adds spring versions to most SKAction factory methods like move, scale, and rotate, replicating UIKit's smooth animations for common SpriteKit operations.
Actions cannot be reversed due to reliance on customActionWithDuration, limiting animation flexibility and reusability in interactive scenarios, as admitted in the README notes.
For iOS 8+ framework installation, requires CocoaPods which adds setup complexity and potential dependency management overhead compared to native solutions.
Focused solely on SpriteKit, it lacks support for newer Apple frameworks like SwiftUI or SceneKit, making it less versatile for modern cross-framework projects.