class Pet
	attr_reader :color, :breed # Be able to read these instance variables outside of the instance
	attr_accessor :name # Be able to both read & write this instance variable outside of the instance

	def initialize(color, breed) # Initialize instance variables
		@color = color
		@breed = breed
		@hungry = true
	end

	def feed(food)
		puts "Mmmm, " + food + "!"
		@hungry = false
	end

	def hungry?
		if @hungry
			puts "I'm hungry!"
		else
			puts "I'm full!"
		end
		@hungry
	end
end

class Cat < Pet
	def speak
		puts "Meow!"
	end
end

class Dog < Pet
	def speak
		puts "Woof!"
	end
end

puppy = Dog.new("black", "Staffordshire Terrier")
puppy.speak
puts puppy.breed

kitty = Cat.new("grey", "Persian")

puts "Let's inspect our new cat:"
puts kitty.inspect
puts "What class does our new cat belong to?"
puts kitty.class
puts "Is our new cat an object?"
puts kitty.is_a?(Object)
puts "What color is our cat?"
puts kitty.color
puts "Let's give our new cat a name."
kitty.name = "Maceo"
puts kitty.name
puts "Is #{kitty.name} hungry now?" # Added string interpolation because it's weird to keep referring to "our cat" after naming it.
kitty.hungry?
puts "Let's feed #{kitty.name}."
kitty.feed("tuna")
puts "Is #{kitty.name} hungry now?"
kitty.hungry?
puts "#{kitty.name} can make some noise."
kitty.speak