animalclass.rb

require_relative "./animalmodule"


class Animal 
  attr_reader :breath_air
  attr_reader :num_legs 

  def initialize
    @breath_air = true 
    @num_legs = 0
    super
  end
end


class Mammal < Animal
  attr_reader :has_womb

  def initialize
    @has_womb = true 
    super
  end 
end

class Bat < Mammal
  attr_reader :has_wings
  include Flight

  def initialize 
    @has_wings = true
    @num_legs = 2
    super
  end
end


class Amphibian < Animal
  attr_reader :lays_eggs

  def initialize
    @lays_eggs = true 
    super
  end


end

class Frog < Amphibian
  def initialize 
    super
    @has_legs = 4 
  end
end


class Primate < Mammal 
  def initialize 
    super
    @num_legs = 2
  end
end

class Chimpanzee < Primate 

end


class Bird < Animal 
   attr_reader :has_wings
   attr_reader :has_wings
   attr_reader :has_feathers
   include Flight

   def initialize 
    @has_feathers = true
    @lays_eggs = true 
    @has_wings = true
    super
    @num_legs = 2
  end
end

class Parrot <  Bird

end


bat = Bat.new
parrot = Parrot.new
p parrot.fly
p bat.fly

animalmodule.rb

module Flight 
  attr_accessor :fly

  def fly
    puts "I'm a #{self.class}, I'm flying!"
  end
end