Re: Ruby Quiz - Challenge #10 - Breeding Kitties - Mix Genes Using the Sooper-Sekret Formula in the GeneSciene CryptoKitties Blockchain Contract

Gerald Bauer wrote:
> Challenge #10 - Breeding Kitties - Mix Genes Using the Sooper-Sekret
Formula in the GeneSciene CryptoKitties Blockchain Contract

$ ruby -v lib/010.rb
ruby 2.6.0p0 (2018-12-25 revision 66547) [x86_64-linux]
Run options: --seed 48193
# Running:
.
Finished in 0.004043s, 247.3455 runs/s, 742.0366 assertions/s.

$ cat lib/010.rb
require_relative '../010/test.rb'

class RubyQuizTest
  def mixgenes(mgenes, sgenes)
    # can't resist new toys :-)
    (0..).step(4).take(12).each do |i|
      3.downto(1) do |j|
        mgenes[i+j],mgenes[i+j-1] = mgenes[i+j-1],mgenes[i+j] if rand<0.25
        sgenes[i+j],sgenes[i+j-1] = sgenes[i+j-1],sgenes[i+j] if rand<0.25
      end
    end

    48.times.map do |i|
      mutation = if i%4 == 0
        [mgenes[i], sgenes[i]].sort.then do |tg|
          if tg[1] - tg[0] == 1 and tg[0].even?
            tg[0] / 2 + 16 if rand < (tg[0] > 23 ? 0.125 : 0.25)
          end
        end
      end

      mutation or rand < 0.5 ? mgenes[i] : sgenes[i]
    end
  end
end

RubyQuizTest.new('fjc')



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