Animal = {age = 1, name = "Animal", sound = "No Sound"}
Animal.__index = Animal

function Animal:new(age, name, sound)
	local self = {}
	setmetatable(self, Animal)
	self.age = age
	self.name = name
	self.sound = sound

	return self
end

function Animal:toString()
	return string.format("%s is %d years old and says %s", self.name, self.age, self.sound)
end

return Animal
-- dog = Animal:new(12, "dave", "woof")
-- print(dog:toString())

-- cat = Animal:new(15, "james", "meow")
-- print(cat:toString())