Hey! I've checked your comment on the 'putinbox' function, it seems like you have defined a draw() function, you're just not calling it. To do that, put this in your main _draw() function :

for b in all(bigbox) do
 b.draw(b)
end

The reasoning for this is while _update() and _draw() are built-in functions and they get called every frame automatically, user-defined functions need to be defined with

function funcname()
 ...
end

and they need to be called by

funcname()

Hope this helped! Cheers!