Use name and id instead of number for json names

extract.mjs

@@ -43,14 +43,12 @@ subDirs.forEach((dir, index) => {
 
     var readPath = [worldPath, subDirs[index], db].join("/") // get the path of all the original db files
 
-
-    var counter = 0; // give all files a unique "id"
-
     // Read each line one at a time and copy the contents to a json file
     lineReader.eachLine(readPath, line => {
-      var writePath = [subDirPath, counter].join("/") + ".json"; // get path of json file to copy to
+      var object = JSON.parse(line);
+      var id = [object._id, object.name].filter(Boolean).join("-");
+      var writePath = [subDirPath, id].join("/") + ".json"; // get path of json file to copy to
       fs.writeFileSync(writePath, line); // write the current line to that file
-      counter++;
     });
-  })
+  });
 });