family tree

nodes.rb

class Node
  attr_accessor :name, :children
  def initialize (name)
    @name = name
    @children = Hash.new
  end
  def add_children(*names)
    names.each do |name|
      @children[name] = Node.new(name)
    end
  end
  def print_children(depth = 0)
    puts "#{"    " * depth}* #{@name} has #{@children.length} child#{"ren" if @children.length != 1}"
    @children.each_value do |child|
      child.print_children(depth+1)
    end
  end
end

grandma = Node.new "Anita"
grandma.add_children "Seth", "Louie", "Beth", "Frannie", "Debbie"

seth = grandma.children["Seth"]
seth.add_children "Jessica", "Max", "Gaby"

louie = grandma.children["Louie"]
louie.add_children "Jake", "Ben"

beth = grandma.children["Beth"]
beth.add_children "Alex", "Becca", "Samantha"

frannie = grandma.children["Frannie"]
frannie.add_children "Jack", "Dan", "Jenna"

jack = frannie.children["Jack"]
jack.add_children "Luke"

grandma.print_children