How do I check if there is already an npc on the map using plotscripting?
From OHRRPGCE-Wiki
You can do this using the NPC copy count command.
if(npc copy count(4) >= 1) then, begin # things that only happen if there is at least one copy of NPC ID 4 on the map else # things that happen if there are no copies of NPC ID 4 on the map end