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Old 01-18-2014, 07:17 PM
100Zero100 100Zero100 is offline
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Dump Useless Local NPCs

I made this script in 2011-2012 and it worked a bit differently (some stuff was changed it seems). Basically the idea is to delete any putnpc2's that exist on the server, in levels that no longer exist.

The first time running the script on UN (2011-2012) reduced their local NPCs from ~4950 to ~690. Running it on UN earlier today reduced their local NPCs from ~6k to ~4k. Running it on Era about an hour ago reduced their local NPCs from > 10k (loadFolder only goes up to 10k entries) to ~3k after 2 presses (first press: ~6k. second press: ~3k). I've had good experiences with it reducing NPC server startup times as well as NC load times (for servers with slow NCs).

It's part of a bigger NPC. I just snipped this part since it seems the most universal.

Graal Script Code:
// NaS
const tempFolder "temp/";
const 
npcFolder "npcs/";
const 
prefix "npclocalnpc";
const 
ext ".nw";

function 
onCreated() {
 
purgeLocal();
}
function 
purgeLocal() {
 
temp.folder.loadFolder(npcFolder prefix "*",0);
 
temp.oldSize folder.size();
 for (
temp.fileNamefolder) {
  
temp.file removeEscapesFromFileName(fileName);
  
temp.tokens file.tokenize("_");
  
temp.endlen tokens[tokens.size() - 1].length() + tokens[tokens.size() - 2].length() + 3;
  
temp.lvl file.substring(prefix.length() + 1file.length() - prefix.length() - endlen) @ ext;
  if (!
levelExists(lvl)) {
   
moveFile(npcFolder fileNametempFolder fileName);
   
deleteFile(tempFolder fileName);
  }
 }
 
temp.folder.loadFolder(npcFolder prefix "*",0);
 
temp.newSize folder.size();
 echo(
format("Local NPC count went from %i to %i."oldSizenewSize));

Your NPC server needs rw to the npcs/npclocalnpc* and it also needs rw to some temporary folder (I put temp/, but it can be anything else; defined in const tempFolder). Likely needs 'r' to all of your levels in order for the levelExists() check to run. You can remove the rw when you're done.

Basically, since sometime in 2012 you can no longer deleteFile() anything in npcs/ (even with npc server rw and protectdbnpcs=false in server ops (I tested, jic)), but you can still moveFile() them to another folder and delete them there. It's an unfortunate nuisance, but so it is.

It outputs how many local NPCs were deleted in an echo(), so let me know if your results are interesting.
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