I used ^G to create a monster and specified "invisible owlbear". I then got "An owlbear appears next to you." Except it didn't; it was invisible and I lacked see-invisible. I imagine that newsym() was called for the new-yet-invisible monster, but that remained buffered and was gone overridden by the time pending map update got flushed at some point after the monster was made invisible. Add a new makemon() flag to turn a newly created monster invisible during its creation, before "monster appears" message is delivered. Since that message will now be suppressed in this situation, use the cursor-flash hack that indicates where the new, unseen monster got placed. Creating "1000 invisible <mon>" is something you probably won't do twice.
49 KiB
49 KiB