ktustanowski

0. speech
1. shout
2. yell
3. battle_cry
4. children_shouting
5. screaming
6. whispering
7. laughter
8. baby_laughter
9. giggling

ktustanowski

▿ 1303 elements
  - 0 : "abacus"
  - 1 : "accordion"
  - 2 : "acorn"
  - 3 : "acrobat"
  - 4 : "adult"
  - 5 : "adult_cat"
  - 6 : "agriculture"
  - 7 : "aircraft"
  - 8 : "airplane"

ktustanowski

struct Atbash: Cipher {
    private let alphabet = Alphabet.letters
    
    func encrypt(_ text: String) -> String {
        var output = [Character]()
        
        for character in text {
            if character != " " {
                guard let index = alphabet.index(of: character) else { continue }
                output.append(alphabet[alphabet.count - index - 1])

ktustanowski

 @IBAction func encrypt() {
     outputLabel.text = cipher?.encrypt(inputTextView.text)
 }

ktustanowski

    @IBAction func selectCipher(_ sender: UISegmentedControl) {
        guard let cipherName = CipherName(rawValue: sender.selectedSegmentIndex) else { return }
        switch cipherName {
        case .atbash:
            encryptButton.isEnabled = true
            decryptButton.isEnabled = true
        default:
            encryptButton.isEnabled = false
            decryptButton.isEnabled = false
        }

ktustanowski

    @IBAction func selectCipher(_ sender: UISegmentedControl) {
        guard let cipherName = CipherName(rawValue: sender.selectedSegmentIndex) else { return }
        switch cipherName {
        case .atbash:
            break
        default:
            break
        }
    }

ktustanowski

class NumbersDecryptor: Decryptor {
    
    fileprivate var cipherDictionary = [String : String]()
    
    override func decrypt(_ input: String) -> String? {
        cipherDictionary.removeAll()
        // The most annoying part of this is to properly replace characters in message
        // so when we do .separatedBy we just get strings we can change to numbers.
        // This may break depending on what text you will use and whether you are using characters
        // that are currently supported or not. I even noticed that – is not the same as -.

ktustanowski

class AtbashDecryptor: Decryptor {
    override func substitute(_ string: String) -> String {
        guard let index = alphabet.index(of: string) else { return string }
        
        return alphabet[alphabet.count - index - 1]
    }
}

ktustanowski

26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9  8  7  6  5  4  3  2  1
1  2  3  4  5  6  7  8  9  10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
A  B  C  D  E  F  G  H  I   J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

ktustanowski

let s01e01Encrypted = "ZHOFRPH WR JUDYLWB IDOOV"
let s01e01Decrypted = ShiftLettersDecryptor(shift: -3).decrypt(s01e01Encrypted)
print(s01e01Decrypted!) // welcome to gravity falls