CustomRandomNumberGenerator created for my video https://youtu.be/Z4NeyjUTqgg

CustomRandomNumberGenerator.swift

import Foundation

struct CustomRandomNumberGenerator: RandomNumberGenerator {
    private var state: UInt64 = 0
    private let multiplier: UInt64 = 6364136223846793005
    private let increment: UInt64 = 1442695040888963407
    private let modulus: UInt64 = UInt64.max // 2^64 - 1
    
    init(seed: UInt64) {
        state = seed
    }
    
    mutating func next() -> UInt64 {
        state = (multiplier &* state &+ increment) % modulus
        //print("Random number generated: \(state)")
        return state
    }
}

var generator = CustomRandomNumberGenerator(seed: 7)

for _ in 1...20 {
    print(Bool.random(using: &generator))
}


let value = Int.random(in: 1...10)
let value2 = Int.random(in: 10...1)
let value3 = Int.random(in: Int.min...Int.max)