For classes, you have 2 options: to use packages or not. Packages are synonymous with folders. If you don’t provide/use a package, then the class goes in root (next to main.lua).

If I make a class, Cow.lua, and save it in root (next to main.lua), then:

Cow = {}
function Cow:new()
    local cow = {}
    return cow
end
return Cow

Then anyone, including main.lua and others, can simply go:

require "Cow"
local myCow = Cow:new()

If, however, you wish to use packages, then it matters where the file Cow.lua goes. If I used com.jessewarden.animals, then I’d:
1. make a folder called “com”
2. inside of “com”, make a folder called “jessewarden”
3. inside of “jessewarden” make a folder called “animals”
4. inside of “animals” put my Cow.lua

Then, whoever wants to use it goes:

require "com.jessewarden.animals.Cow"
local myCow = Cow:new()

Make sense?

Thanks, glad it helps!

I am working on a few general libraries that should hopefully make Corona development even less painful – a TouchManager for figure out how the playing is tapping, swiping, etc (multi touch as well) and also some ParticleEffect engine stuff. While I wish Flash was viable (and still might be…) on mobile I am glad people like you are moving into the Corona community.