Tables + metatables are awesome, I've seen full OOP, composition based design various forms of dynamic dispatch all built on those simple mechanisms. One fun t

Tables + metatables are awesome, I've seen full OOP, composition based design various forms of dynamic dispatch all built on those simple mechanisms. One fun thing we did with co-routines was build literate-style scripting for our designers to define AI routines. They could write them in a linear/semi linear way with yield(<number of frames to wait to re-execute>) that allowed them to script all sorts of interesting behaviors without extensive programming knowledge. We also ran the whole thing inside a 400kb pre-allocated block, it's an incredible powerful, embeddable language.