well i dont knw the exact limits, if any, my game with A7 so far has over 10,000 lines of code, consisting of while loops, if statements, the works so i dont think you should worry about that for now, hmm, you may wanna use different script files for different purposes also, like you could have a, for exmaple:
GAMENAME_ACTIONS.c //shortening the gamename is good, so you would have something like
gn_actions.c
and you put all your actions in that then include it in your main project, now am not sure if am answering your question correctly but this is what i got but as usual, someone will clarify if am offtrack