Swift Learning

Random Number

Can run it at https://replit.com

import Foundation

var randomNumber = 1
var continueGuessing = true
var keepPlaying = true
var input = ""

while keepPlaying {
    // get a random number between 0 - 100
    //randomNumber = Int(arc4random_uniform(101))
    randomNumber = Int.random(in: 1 ... 100)
    print("The random number to guess is: \(randomNumber)")
    
    while continueGuessing {
        print("Pick a random number between 0 and 100: ")
        //get keyboard input, and trim the new line
        input = String(bytes: FileHandle.standardInput.availableData, encoding: .utf8)!
        input = input.trimmingCharacters(in: .whitespacesAndNewlines)
      
        if let userGuess = Int(input){
            if userGuess == randomNumber{
                continueGuessing = false
                print("Corrected Number! Yay...")
            } else if userGuess > randomNumber {
                //user guessed too high
                print("Your guess is too high!")
            } else {
                //no reason to check if userGuess < randomNumber. It has to be.
                print("Your guess is too low.")
            }
        }else {
            print("Invalid guess, please try again")
        }
    }
    print("Play again? Y or N: ")
    input = String(bytes: FileHandle.standardInput.availableData, encoding: .utf8)!
    input = input.trimmingCharacters(in: .whitespacesAndNewlines)
    
    if input == "N" || input == "n"{
        keepPlaying = false
    }
    continueGuessing = true
}