'thatenums' in practice & function names as enums

i get back for a while to coding (though my health
is real disaster)
i think about maybe not even writing some 'paragraph'
game (i mean game that writes paragraph of text, then gives
options to chose A) B) C) .. then writes next paragraph and
this is a game
coding it is itself easy, especially if someone has
learned a library for this it mainly look like this
CastleScreen()
{
   clear_screan();
   text("Youre in a Castle of Baron blblabla..")
   text("a) talk with baron")
   text("b) go to kitchen")
   //...
}
runFrame()
{
   if(screen=='castle') CastleScreen();
   if(screen=='river') RiverScreen();
   //.... and so on tens of that
}
OnKeyDown(int key)
{
   if(screen=='castle)
   {
     if(key=='A') screen == 'baron'
     if(key=='B') screen == 'kitchen'
   }
   //.....
}
and thats it its basically all of it
(add yet few state variables like kitchen_visited
atc to make soem mechanics)
one question i had in mind was it that could be
yet simplified , bot in c or as extension in soem langage
it seem that there is some Simplification and it is to
use callback like CurrantScreen and assign pointers
to screen functions to it
it is bold/brave though and im not sure if i should
do that - there seem to be tremendous advantage not
having this kind of enums at all (real advantage
as if game has hundreds of screens - and probably
would need it like books has hundreds of pages) then
you damn type hundred of enums and function names
and there is a lot of (sadly not much 'scalable') code
jumping and resolving typos (which is monkeyish
work)
second advantage is that Fuction names can be enough long
and 'thiskind' of enums are not  (below on this)
this idea to getting rid of this literal enums
is somewhat bold/brave as i said and i not rethinked
what this danger may be? do you maybe know?
second thing is using this 'literal enums '
for signs like 'sdas' is for sure not enough
for this use case so i need at least eight or
more
doeas maybe someone know how to enforce it
(im using 32bit mode mingw/gcc)
need i write
unsigned long long screen;
and then type "screen='aasasas'" and "if(screen=='aasasas')"
or i need something more to be safe (liek adding L before
like L'aasasas'
im terribly sick and weary and not made initial
experimentation what work... if i use those long literals
it seem to work (compiles) but it seem some reduce
to teh same (probably last 4 being significant) and it makes errors
?
tnx for answer