Alright, refining my idea now:
The signs still go by numbers for say 1...so the sign box would have options for all languages. When you type something in one language, it automatically fills for the other languages...or the EXE is programmed to check, if a sign is blank for the player's language, go with the default sign.
for say3, the texts would be seperated by commas, as in
NPC Code:
say3 Welcome to Graalonline.com,,Bienvenue a Graalonline.com,Njord a Fjord,,,Moo;
As for accepting spoken commands in different languages, that could be done with a sufficiently elaborate OR condition:
NPC Code:
if(playerchats&&(strequals(#c,Yes)
||strequals(#c,Oui)
||strequals(#c,Si)
||strequals(#c,Da)
||strequals(#c,Ja)
||strequals(#c,Hai)){