Title: Apple Game Frameworks and Technologies: Scrolling background (page 120-124)

I have the code implemented and double checked with the sample code in the chapters end folder. I
get the goop Flow to show up. FWIW, the chapter says “scrolling the background”, but the layer for the flowing gloop is using the foreground enum. With that said, I tweaked the code to use the enum for UI, but I still don’t see the code.

I’ve also been implementing this as a universal app and tweaking it to be a macOS app and a iOS app. Up until this time I haven’t had any runtime warnings. I got warnings in chapter 6. I believe it’s to do with the mixer for audio. Any advice how to debug this is appreciated.