Infakt_workshops_challenge_2

CaesarCipher.rb

class CaesarCipher
  @@alphabet = ('a'..'z').to_a.freeze

  def initialize(text, rotate=13)
    @text = text
    @rotate = rotate
  end

  def perform
    rotated_alphabet = @@alphabet.rotate(@rotate).to_s
    rotated_alphabet_upcase = rotated_alphabet.upcase
    @text.tr!(@@alphabet.to_s, rotated_alphabet.to_s)
    @text.tr!(@@alphabet.to_s.upcase, rotated_alphabet_upcase.to_s)
    @text
  end
end

puts CaesarCipher.new("Testowy Tekst").perform
puts CaesarCipher.new("Ala ma...psa!", 4).perform