GameplayKit's random number generator includes help constructors that produces numbers in a specific range, simulating a six-sided die and a 20-sided die. To get started you should import the GameplayKit framework like this:
You can then create a virtual six-sided die and "roll" it like this:
let d6 = GKRandomDistribution.d6() d6.nextInt()
For a 20-sided die, do this:
let d20 = GKRandomDistribution.d20() d20.nextInt()
If you want to set your own range for the virtual die, there's a special constructor just for you:
let massiveDie = GKRandomDistribution(lowestValue: 1, highestValue: 556) massiveDie.nextInt()
Sponsored You’re already busy updating your app for Swift 4.2 and iOS 12, so why not let Instabug help you find and fix bugs? Add just two lines of code to your project and receive comprehensive reports with all the feedback you need to ship a world-class app – click here to learn more!
Available from iOS 9.0 – see Hacking with Swift tutorial 35
Did this solution work for you? Please pass it on!
Other people are reading…
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
Learn Server-Side Swift now!
Take your Swift code to the server and become a full-stack developer with my latest book: Server-Side Swift!