citizen.rb

class Citizen
  # DATA
  def initialize(first_name, last_name, age) # called when doing Citizen.new
    # instance variables
    @first_name = first_name
    @last_name = last_name
    @age = age
  end

  # BEHAVIOR
  def can_vote?
    if @age >= 18
      return true
    else
      return false
    end
  end

  def full_name
    first = @first_name.capitalize
    last = @last_name.capitalize
    full_name = first + " " + last
    return full_name
  end
end

# john = Citizen.new('John', 'Doe', 17)
# arthur = Citizen.new('Arthur', 'Littmann', 26)

# p john.can_vote?


# #

slot_machine.rb

class SlotMachine
  SCORES = {
    joker:  50,
    star:   40,
    bell:   30,
    seven:  20,
    cherry: 10
  }

  def initialize
    @score = 0
  end

  def score(reels)
    # 1. check that there are three elements the same
    three_the_same = reels.uniq.length == 1
    # ['joker', 'bell', 'joker']
    # ['star', 'star', 'joker']
    two_the_same = reels.include?('joker') && reels.uniq.length == 2

    if three_the_same
      key = reels[0].to_sym
      return SCORES[key]
    elsif two_the_same
      key = reels.sort[1].to_sym
      return SCORES[key] / 2
    else
      return 0
    end

  end

end

slot_machine = SlotMachine.new()
# score = slot_machine.score(['joker', 'joker', 'joker'])
# score = slot_machine.score(['joker', 'bell', 'joker'])
score = slot_machine.score(['star', 'star', 'joker'])

p score

# Joker 🤩   50  25 (2 jokers + anything)
# Star ⭐️    40  20
# Bell 🛎    30  15
# Seven 7️⃣   20  10
# Cherry 🍒  10  5