I thought it would go unnoticed, and tried to gloss over it, but there's always one student....
In the boe-bot book we used subroutines. I understand those.
Now we are modifying the sumobot book for the boe-bot. In this book, it has what seems like subroutines, but they are never defined as such, and they aren't called with GOSUB but GOTO. Also, they don't end in RETURN. Are these main routines? And why would there be more than one main routine? Why would you use this rather than subroutines?
Please help me answer my student.