How to roll a dice using GameplayKit and GKRandomDistribution
Swift version: 5.6
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:
import GameplayKitYou 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 Fernando's book will guide you in fixing bugs in three real, open-source, downloadable apps from the App Store. Learn applied programming fundamentals by refactoring real code from published apps. Hacking with Swift readers get a $10 discount!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 9.0 – see Hacking with Swift tutorial 35
Similar solutions…
- SwiftUI tips and tricks
- All SwiftUI property wrappers explained and compared
- How to create live playgrounds in Xcode
- How to create a random terrain tile map using SKTileMapNode and GKPerlinNoiseSource
- How to use Instruments to profile your SwiftUI code and identify slow layouts
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
