Port's TG's Maploader

code/_helpers/lists.dm

@@ -662,3 +662,13 @@ proc/dd_sortedTextList(list/incoming)
 			L.Swap(start++,end--)
 
 	return L
+
+//Copies a list, and all lists inside it recusively
+//Does not copy any other reference type
+/proc/deepCopyList(list/l)
+	if(!islist(l))
+		return l
+	. = l.Copy()
+	for(var/i = 1 to l.len)
+		if(islist(.[i]))
+			.[i] = .(.[i])