Tutorial Code Copyright (specifically Cargo Bot)

Apologies if this has been raised before…

I have recently started using Codea and have been using the Cargo Bot code as an advanced tutorial. I see that it is up on Github. As a significant proportion of the code is a set of generically reusable classes, please can you advise the copyright situation with this code. Classes such as the SpriteObj that allow sprites as physics objects are incredibly useful and well decoupled from one another so I would love to re-use them…

I am purely learning at the moment but the goal is to get something on the App Store as a paid app, obviously with correct attribution…

Any advice gratefully received,

Regards, brookesi

Please feel free to use this code in your own projects. Even if you distribute them commercially through the App Store.

Many thanks, and congratulations on an outstanding project
Brookesi