pokemon_getter_and_setter.rb

class Pokemon
  # from here until line 9, we are INSIDE the class
  attr_accessor :name, :type, :level
  # when a Pokemon is created, its name, type, and level must be set
  def initialize(name, type, level)
    @name = name
    @type = type
    @level = level
  end

  # You can call this method from outside the class.
  # It is a proxy to allow you to read the Pokemon's state.
  def pokedex
    puts "#{@name} is a #{@type} type Pokemon. It is at level #{@level}."
  end

  # You can call this method from outside the class on a Pokemon object.
  # It will update the state of the Pokemon object.
  def level_up(n)
    @level = n
  end
end

# from here on out, we are OUTSIDE the class
pokemon = Pokemon.new("Charmander", "fire", 12) # create a new Pokemon instance
pokemon.pokedex # => "Charmander is a fire type Pokemon. It is at level 12."
pokemon.level_up(13) # updates Charmander's level
pokemon.pokedex # => "Charmander is a fire type Pokemon. It is at level 13."

puts pokemon.type # => "fire" (now it works, thanks to the attr_accessor on line 3!)