OOP Intro

car.rb

require_relative('./vehicle')

class Car < Vehicle
  attr_reader :wheels

  def initialize(title, capacity, make_year, color, fuel_type, wheels)
    # remember: calling `super` alone will use the same set of parameters
    #           being passed into the current initialize when calling the parent's initialize
    super(title, capacity, make_year, color, fuel_type)
    @wheels = wheels
  end
end

vehicle.rb

class Vehicle

  attr_reader :capacity, :make_year, :color, :fuel_type
  attr_accessor :title

  def initialize(title, capacity, make_year, color, fuel_type)
    @title = title
    @capacity = capacity
    @make_year = make_year
    @color = color
    @fuel_type = fuel_type
  end

  def info
    # access title directly from inside the instance
    puts "This vehicle is called #{@title}"
    # access `title` through the reader method
    # puts "This vehicle is called #{self.title}"
  end

  # manually create an attribute reader for `make_year`
  # when using attr_reader, we're creating methods like this
  # behind the scenes
  # def make_year
  #   @make_year
  # end

  # manually create a setter method for `make_year`
  # def make_year=(new_value)
  #   @make_year = new_value
  # end

end

# to test out how the call works
# simply in-class examples
# v1 = Vehicle.new("Sam's Jamz", 5, 2005, 'pirate black', 'deisel')
#
# # ....
#
# v1.title = "Sam's Boat"
# puts v1.title