Understanding Sprite Collisions with Screen Bottoms in SpriteKit: A Comprehensive Guide

Understanding Rectangle Intersections in 2D Graphics for Efficient Collision Detection in Top-Down Game Scenes

Detecting Touch and Hold on Screen iPhone (Xcode)

Mastering SpriteKit's Warp Geometry Support for Dynamic 2D Game Development

Understanding SpriteKit Default Projects and the Views Origin Issue in Xcode 6: A Step-by-Step Guide to Resolving Common Issues with SpriteKit Scenes.