Fix the problem reported by entrez of a zombie corpse reviving and
crawling out of the ground while the hero was busy doing something
(searching, digging, &c) and having the hero fail to react and just
keep doing whatever the thing was because the zombie was already
inside the range where a monster changes from no-threat to threat.
Done in the monster creation routine so any new monster (including
one revived from a corpse) that is visible,&c will cause the hero's
action to be interrupted. Teleport arrival probably needs this too.
Only interrupts an occupation, not other voluntary multi-turn
actitivy such as running or traveling. That would be trivial to
change ['if (g.occupation...' to 'if ((g.occupation || multi > 0)...']
but I'm not sure whether it ought to be extended to that.
f2f2644e30