require "SimpleOOP" Animal = class() function Animal:move() print "Shuffle shuffle..." end Dog = class(Animal) -- Subclass of Animal Cat = Animal:subclass() -- Another way to subclass! function Dog:bark() if self.size > 5 then print "WOOF!" else print "Yip!" end end d1 = Dog:new({size = 4}) -- Create a new instance d2 = instance(Dog, {size = 7}) -- Another way to create a new instance! d1:move() -- "Shuffle shuffle..." d2:bark() -- "WOOF!" Dog.size = 2 function Dog:move() print "The dog pads around" end d1:move() -- "the dog pads around" print(d1.size) -- 4 print(d1._parent.size) -- 2 d1._parent._parent:move() -- "Shuffle shuffle..."