From OHRRPGCE-Wiki

[edit] NPC definitions

1. Store NPC pictures in an array of memory buffers, rather than an allmodex screen page
2. Optimize NPC picture array to behave as a cache, only storing each set once, and automatically adding new entries when alter NPC changes an NPC's picture
3. Update the N lump.
   • remove bsave header
   • store record size in BINSIZE.BIN
   • get rid of 1920 wasted bytes in each record
   • store N lump record count to MAP lump
4. Update all code that assumes that exactly 36 NPCs exist
   • take special care that accessing non-existent NPC IDs <= 35 from a plotscript fails gracefully
5. Increase the NPC limit

[edit] NPC locations

...and while we are at it...

1. update the L lump.
2. remove BSAVE header.
   • store record size in BINSIZE.BIN
   • get rid of (or re-purpose) 2 wasted bytes in each record
   • store L lump record count to MAP lump
3. Update all code that assumes that exactly 300 NPC instances exist

---

Note that just because you will be able to use lots of NPCs on a single map, don't go hog-wild, because too many extra NPCs will have a performance impact, both on display and tag-checking.