# classes

class House

 def initialize(temp, ac_on, furnace_on)
 # instance variables
 @temp = temp
 @ac_on = ac_on
 @furnace_on = furnace_on

 end

 def update_temperature!(ac_on, furnace_on)

  if (ac_on == true and furnace_on == false)
   @temp -= 2
   puts self.display
  elsif (ac_on == false and furnace_on == true)
   @temp += 1
   puts self.display
  elsif (furnace_on == true and ac_on == true)
   puts "Why do you have the AC and furnace on at the same time?"
   puts self.display
  end

 end

 def ask_ac
  puts "Turn AC on?"
  answer = gets.chomp
  if answer == "yes"
   @ac_on = true
   @furnace_on = false
   puts "Turning the AC on."
   self.update_temperature!(ac_on, furnace_on)
  else
  puts "Leaving AC off."
  end
 puts "The current temperature is #{@temp}."
 end

  def ask_furnace
  puts "Turn furnace on?"
  answer = gets.chomp
  if answer == "yes"
   @ac_on = false
   @furnace_on = true
   puts "Turning the furnace on."
   self.update_temperature!(ac_on, furnace_on)
  else
   puts "Leaving furnace off."
  end
  puts "The current temperature is #{@temp}."
 end

 def ac_switch(ac_yes)
  @ac_on = true
  puts "Turning the AC on."
 end

 def display
  puts "The current temperature is #{@temp}."
 end

end

house1 = House.new(75, false, false)

house1.update_temperature!(false, false)

house1.ask_ac
house1.ask_furnace

house2 = House.new(55, false, false)

house2.ask_ac
house2.ask_furnace