02-hub3.rb


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require './level'
require './frame'

$levels << Level.new do
  @interfaces = %w(1 2 3)
  @description = <<~EOD
    You are now a three-port hub. Your job is to forward frames from one interface to all the others.
  EOD

  def target(frame)
    case frame.iface
    when ?1
      [frame.to(?2), frame.to(?3)]
    when ?2
      [frame.to(?1), frame.to(?3)]
    when ?3
      [frame.to(?1), frame.to(?2)]
    else
      []
    end
  end

  def generate
    frame = Frame.new(interfaces.sample, @count)
    @count += 1
    frame
  end

  def click
  end
end