Polymorphic Cars

cars.rb

class Car
  def drive
    # get_in
    start_engine
    accelerate
    # park
  end
end

class Ford < Car
  def start_engine
    puts 'Starting the Ford'
  end

  def accelerate
    puts 'Driving my Ford!'
  end
end

class Subaru < Car
  def start_engine
    puts 'Starting the Subaru'
  end

  def accelerate
    puts 'Driving my Subaru!'
  end
end

class BMW < Car
  def start_engine
    puts 'Starting the BMW'
  end

  def accelerate
    puts 'Driving my BMW!'
  end
end

class Broker
  CARS = [Ford, Subaru, BMW]

  def car
    index = rand(0...CARS.count)
    CARS[index].new
  end
end

Broker.new.car.drive