diff options
Diffstat (limited to 'crawl-ref/source/mon-behv.cc')
| -rw-r--r-- | crawl-ref/source/mon-behv.cc | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/crawl-ref/source/mon-behv.cc b/crawl-ref/source/mon-behv.cc index 8b4956a8a9..f23620fb9f 100644 --- a/crawl-ref/source/mon-behv.cc +++ b/crawl-ref/source/mon-behv.cc @@ -983,6 +983,23 @@ static void _set_random_slime_target(monsters* mon) set_random_target(mon); } +static void _guess_invis_foe_pos(monsters *mon) +{ + const actor* foe = mon->get_foe(); + const int guess_radius = mons_sense_invis(mon) ? 3 : 2; + + std::vector<coord_def> possibilities; + + for (radius_iterator ri(mon->pos(), guess_radius); ri; ++ri) + { + if (foe->is_habitable(*ri) && mon->mon_see_cell(*ri)) + possibilities.push_back(*ri); + } + + if (!possibilities.empty()) + mon->target = possibilities[random2(possibilities.size())]; +} + //--------------------------------------------------------------- // // handle_behaviour @@ -1202,6 +1219,24 @@ void handle_behaviour(monsters *mon) // Foe gone out of LOS? if (!proxFoe) { + // Maybe the foe is just invisible. + if (mon->target.origin() && afoe && mon->near_foe()) + { + _guess_invis_foe_pos(mon); + if (mon->target.origin()) + { + // Having a seeking mon with a foe who's target is + // (0, 0) can lead to asserts, so lets try to + // avoid that. + _set_nearest_monster_foe(mon); + if (mon->foe != MHITNOT) + continue; + + new_beh = BEH_WANDER; + break; + } + } + if (mon->travel_target == MTRAV_SIREN) mon->travel_target = MTRAV_NONE; |