class Captchah::Generators::Truth

Public Class Methods

call(difficulty) click to toggle source
# File lib/captchah/generators/truth.rb, line 6
def self.call(difficulty)
  chrs = []

  (rand(0..1).positive? ? 4 : 5).times do
    up_or_down = rand(0..1).positive? && difficulty > 1 && difficulty != 3
    chr = (up_or_down ? rand(97..122) : rand(65..90)).chr
    chrs << (%w[i j l r].any? { |c| c == chr } ? chr.upcase : chr)
  end

  chrs.join
end