Press n or j to go to the next uncovered block, b, p or k for the previous block.
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// C ref: monmove.c -- 2415 lines
//
// Functions ported:
// dochugw, dochug, m_move, mfndpos, distfleeck, monflee,
// set_apparxy, postmov, mon_track_add, mon_track_clear,
// mb_trapped, onscary, mon_regen, disturb, m_move_aggress,
// closed_door, m_everyturn_effect, m_postmove_effect,
// dochug helpers: watch_on_duty, m_arrival, mind_blast, etc.
import { game } from './gstate.js';
import { Amonnam, DEADMONSTER, check_gear_next_turn, gettrack, has_attacktype, hideunder, hideunder_with_message, m_digweapon_check, m_respond, maybe_unhide_at, mfndpos, mon_allowflags, mon_nam, mon_wield_item, mondead, mondied, monflee, Monnam, monsterSubjectName, set_ustuck, sticks_attack, stop_occupation, wake_nearby, wake_nearto, wakeup, m_in_air } from './mon.js';
import { formatMonsterEventRef, rn2, rnd, rn1, c_d, pushRngLogEntry } from './rng.js';
import { assertNotInModal } from './modal_guard.js';
import { couldsee, cansee, clear_path, vision_recalc } from './vision.js';
import { db_under_typ } from './dbridge.js';
import { Conflict, Deaf, Displaced, Hallucination, In_endgame, Inhell, Invis, Sokoban, Underwater, Upolyd, U_AP_TYPE, is_rogue_level } from './macros.js';
import { attacktype, can_teleport, can_track, hides_under, is_animal, is_covetous, is_demon, is_greedy as likes_gold, is_mercenary, is_mindless, is_pick, is_pole, is_rider, is_undead, is_unicorn, is_vampshifter, is_wanderer, is_watch, likes_gems, likes_magic, likes_objs, m_cansee, m_canseeu, mdistu, mon_hates_silver, mon_knows_traps, mon_learns_traps, needspick, noattacks, passes_walls, perceives, resist_conflict, resists_ston, sticks, throws_rocks, touch_petrifies, tunnels, unique_corpstat, webmaker } from './mondata.js';
import { helpless, money_cnt } from './hack.js';
import { artifact_light } from './light.js';
import { inhistemple, in_your_sanctuary } from './priest.js';
import { quest_talk } from './quest.js';
import { A_STR, ACCFOOD, ACCESSIBLE, ALL_TRAPS, ALLOW_M, ALLOW_MDISP, ALLOW_SANCT, ALLOW_SSM, ALLOW_TRAPS, ALLOW_U, BOLT_LIM, COLNO, CORR, D_BROKEN, D_CLOSED, D_ISOPEN, D_LOCKED, D_NODOOR, D_TRAPPED, D_WARNED, DART_TRAP, DOOR, DRAWBRIDGE_UP, EDOG, engulfing_u, has_edog, IRONBARS, IS_ALTAR, IS_DOOR, IS_LAVA, IS_OBSTRUCTED, IS_POOL, IS_ROOM, IS_WALL, is_pit, isok, LADDER, M_AP_FURNITURE, M_AP_OBJECT, M_AP_TYPE, MAGIC_TRAP, MANFOOD, M_ATTK_AGR_DIED, M_ATTK_DEF_DIED, M_ATTK_HIT, MMOVE_DIED, MMOVE_DONE, MMOVE_MOVED, MMOVE_NOMOVES, MMOVE_NOTHING, MON_FLOOR, MON_POLE_DIST, MTSZ, NEED_HTH_WEAPON, NEED_WEAPON, NOTONL, NO_TRAP, NORMAL_SPEED, OBJ_FLOOR, PIT, RLOC_MSG, ROOM, ROWNO, SHOPBASE, SPIKED_PIT, SQKY_BOARD, STAIRS, STATUE_TRAP, STRAT_CLOSE, STRAT_WAITFORU, STRAT_WAITMASK, u_at, VIBRATING_SQUARE, W_ARMOR, W_ARMG, W_NONDIGGABLE, WEB } from './const.js';
import { AMULET_CLASS, AMULET_OF_STRANGULATION, ARMOR_CLASS, BALL_CLASS, BELL_OF_OPENING, BOULDER, CLOAK_OF_DISPLACEMENT, COIN_CLASS, CORPSE, CREDIT_CARD, DART, FOOD_CLASS, GEM_CLASS, GEMSTONE, GOLD_PIECE, is_metallic, is_rustprone, LOCK_PICK, MINERAL, POTION_CLASS, RING_CLASS, RIN_SLOW_DIGESTION, ROCK, ROCK_CLASS, SCR_SCARE_MONSTER, SCROLL_CLASS, SILVER, SKELETON_KEY, SPBOOK_CLASS, STRANGE_OBJECT, WAND_CLASS, WEAPON_CLASS } from './objects.js';
import { AD_CLRC, AD_DRCO, AD_DRDX, AD_DRST, AD_ELEC, AD_PHYS, AD_SAMU, AD_SPEL, AD_STCK, AT_BITE, AT_BUTT, AT_CLAW, AT_ENGL, AT_HUGS, AT_KICK, AT_MAGC, AT_STNG, AT_TENT, AT_TUCH, AT_WEAP, M1_AMORPHOUS, M1_NOHANDS, M1_NOTAKE, M2_ROCKTHROW, M2_STRONG, M2_UNDEAD, MS_BRIBE, mons, MZ_HUMAN, MZ_TINY, PM_ANGEL, PM_BABY_PURPLE_WORM, PM_DISPLACER_BEAST, PM_ETTIN, PM_FOG_CLOUD, PM_GELATINOUS_CUBE, PM_GHOUL, PM_GIANT_SPIDER, PM_GREMLIN, PM_GRID_BUG, PM_HEZROU, PM_JABBERWOCK, PM_LEPRECHAUN, PM_MINOTAUR, PM_PIRANHA, PM_PURPLE_WORM, PM_RUST_MONSTER, PM_STALKER, PM_STEAM_VORTEX, PM_XORN, S_BAT, S_DOG, S_EEL, S_FUNGUS, S_HUMAN, S_LEPRECHAUN, S_LIGHT, S_NYMPH, S_VAMPIRE } from './monsters.js';
import { bot, canspotmon, canseemon, flush_screen, newsym, recalc_block_point, setBotl } from './display.js';
import { nomul } from './cmd.js';
import { dist2, distmin, distu, MON_WEP, monnear, sgn } from './hacklib.js';
import { m_at as map_m_at, obj_at, t_at } from './map_access.js';
import { count_traps, m_harmless_trap, maketrap, mintrap } from './trap.js';
import { is_digging, mdig_tunnel, watch_dig } from './dig.js';
import { mksobj, mksobj_at, obj_extract_self, place_object, sobj_at, vobj_at, weight } from './mkobj.js';
import { create_gas_cloud, m_in_out_region, visible_region_at } from './region.js';
import { inhishop, in_rooms } from './shk.js';
import { stairway_at, stairway_find_dir } from './stairs.js';
import { find_mac } from './worn.js';
import { an, distant_name, doname } from './objnam.js';
import { ACURR, ACURRSTR } from './attrib.js';
import { autoreturn_weapon, lined_up, m_carrying, m_has_launcher_and_ammo, select_rwep } from './mthrowu.js';
import { can_carry, could_reach_item, dogfood } from './dogmove.js';
import { add_damage, costly_spot } from './shk.js';
import { find_defensive, find_misc, find_offensive, searches_for_item, use_defensive, use_misc, use_offensive } from './muse.js';
import { touch_artifact } from './artifact.js';
import { goodpos, enexto } from './makemon.js';
import { noteleport_level, rloc, rloc_to_flag, tele_restrict } from './teleport.js';
import { tactics } from './wizard.js';
import { expels, mattacku as mattacku_canonical, mdamageu as mdamageu_real, ranged_attk_available } from './mhitu.js';
import { mattackm, mdisplacem } from './mhitm.js';
import { findgold, mpickobj } from './steal.js';
import { fobj_at } from './pickup.js';
import { sengr_at, wipe_engr_at } from './engrave.js';
import { demon_talk, is_lminion } from './minion.js';
import { set_malign } from './dog.js';
import { angry_guards, in_town } from './mklev.js';
import { picking_lock } from './lock.js';
import { place_monster, remove_monster } from './steed.js';
import { remove_worm } from './worm.js';
import { worm_move, worm_nomove } from './worm.js';
import { obj_resists } from './zap.js';
import { delobj } from './invent.js';
// ============================================================================
// Utility predicates (from C's monmove.c and support headers)
// ============================================================================
function nodiag(mtmp) {
return mtmp?.mnum === PM_GRID_BUG;
}
function monster_can_open_doors(mtmp) {
const data = mtmp?.data;
return !!data && !(data.mflags1 & M1_NOHANDS) && data.msize > MZ_TINY;
}
// is_rogue_level: imported from macros.js
function is_shop_square(x, y) {
const rooms = in_rooms(x, y, SHOPBASE);
return Array.isArray(rooms) ? rooms.length > 0 : !!rooms;
}
function may_dig_local(x, y) {
const loc = game.level?.at?.(x, y);
return !!loc && !(loc.wall_info & W_NONDIGGABLE);
}
async function mon_yells_local(mtmp, msg) {
await pline(`${Monnam(mtmp)} yells: "${msg}"`);
}
async function watch_on_duty_local(mtmp) {
const u = game.u;
if (!mtmp.mpeaceful
|| !in_town((u.ux ?? 0) + (u.dx ?? 0), (u.uy ?? 0) + (u.dy ?? 0))
|| !mtmp.mcansee
|| !m_canseeu(mtmp)
|| rn2(3)) {
return;
}
const pick = { x: 0, y: 0 };
if (picking_lock(pick)
&& IS_DOOR(game.level?.at(pick.x, pick.y)?.typ ?? 0)
&& ((game.level?.at(pick.x, pick.y)?.doormask ?? 0) & D_LOCKED)) {
if (couldsee(mtmp.mx, mtmp.my)) {
const loc = game.level?.at(pick.x, pick.y);
if ((loc?.looted ?? 0) & D_WARNED) {
await mon_yells_local(mtmp, "Halt, thief! You're under arrest!");
angry_guards(!!Deaf());
} else {
await mon_yells_local(mtmp, "Hey, stop picking that lock!");
if (loc) loc.looted = (loc.looted || 0) | D_WARNED;
}
await stop_occupation();
}
} else if (is_digging()) {
const dpos = game.context?.digging?.pos;
if (dpos)
await watch_dig(mtmp, dpos.x, dpos.y, false);
}
}
// is_wanderer — imported from mondata.js
function nohands_fn(ptr) {
return !!(ptr?.mflags1 & M1_NOHANDS);
}
function verysmall_fn(ptr) {
return (ptr?.msize ?? 0) <= MZ_TINY;
}
// C ref: monmove.c:2141 can_hide_under_obj()
function can_hide_under_obj_local(obj) {
if (!obj) return false;
if (obj.where != null && obj.where !== OBJ_FLOOR) return false;
const trap = t_at(obj.ox, obj.oy);
if (trap && !is_pit(trap.ttyp)) return false;
if (obj.oclass === COIN_CLASS) {
let coinquan = 0;
let cur = obj;
while (cur && cur.oclass === COIN_CLASS) {
coinquan += Number(cur.quan) || 0;
if (coinquan >= 10) break;
cur = cur.nexthere || null;
}
if (coinquan < 10) return false;
}
return true;
}
// C ref: monmove.c:97 monhaskey — check if monster has a key/lockpick/credit card
function monhaskey_fn(mtmp, for_unlocking = true) {
if (for_unlocking && m_carrying(mtmp, CREDIT_CARD))
return true;
return !!m_carrying(mtmp, SKELETON_KEY) || !!m_carrying(mtmp, LOCK_PICK);
}
// passes_walls: imported from mondata.js
function can_ooze_fn(mtmp) {
return !!(mtmp?.data?.mflags1 & M1_AMORPHOUS);
}
function can_fog_fn(mtmp) {
// C ref: monmove.c can_fog() — full inventory gate not ported here yet.
// Shape-shifted vampires can slip under closed doors.
return !!mtmp && is_vampshifter(mtmp);
}
function accessible_monmove(x, y) {
return accessible(x, y);
}
// C ref: monmove.c:1091 should_displace()
function should_displace(mtmp, positions, ggx, ggy) {
let shortestWithDisplacing = -1;
let shortestWithoutDisplacing = -1;
let countWithoutDisplacing = 0;
for (let i = 0; i < positions.length; i++) {
const nx = positions[i].x;
const ny = positions[i].y;
const info = positions[i].info || 0;
const ndist = dist2(nx, ny, ggx, ggy);
if (map_m_at(nx, ny) && (info & ALLOW_MDISP) && !(info & ALLOW_M)) {
if (shortestWithDisplacing === -1 || ndist < shortestWithDisplacing) {
shortestWithDisplacing = ndist;
}
} else {
if (shortestWithoutDisplacing === -1 || ndist < shortestWithoutDisplacing) {
shortestWithoutDisplacing = ndist;
}
countWithoutDisplacing++;
}
}
return shortestWithDisplacing > -1
&& (shortestWithDisplacing < shortestWithoutDisplacing
|| !countWithoutDisplacing);
}
function line_clear_between(x1, y1, x2, y2, allowBlockedTarget = false) {
const level = game.level;
if (!level) return false;
if (x1 === x2 && y1 === y2) return true;
const dx = x2 - x1;
const dy = y2 - y1;
const steps = Math.max(Math.abs(dx), Math.abs(dy));
let prevX = x1;
let prevY = y1;
for (let i = 1; i <= steps; i++) {
const x = Math.round(x1 + (dx * i) / steps);
const y = Math.round(y1 + (dy * i) / steps);
if (x === prevX && y === prevY) continue;
prevX = x;
prevY = y;
const loc = level.at(x, y);
if (!loc) return false;
if (x === x2 && y === y2) {
return allowBlockedTarget || ACCESSIBLE(loc.typ);
}
if (!ACCESSIBLE(loc.typ)) {
return false;
}
}
return true;
}
// has_attacktype: imported from mon.js
// sticks_attack: imported from mon.js
// Use canonical Monnam/mon_nam for proper pet naming via mextra.mgivenname
// monsterSubjectName: imported from mon.js
// is_undead — imported from mondata.js
function findgold_invent() {
for (let obj = game.invent; obj; obj = obj.nobj) {
if (obj.oclass === COIN_CLASS) return obj; // COIN_CLASS
}
return null;
}
function findgold_minvent(mtmp) {
for (let obj = mtmp?.minvent; obj; obj = obj.nobj) {
if (obj.oclass === COIN_CLASS) return obj;
}
return null;
}
// C ref: monmove.c m_cansee — monster line of sight check
// m_cansee: imported from mondata.js
export async function can_touch_safely(mtmp, otmp) {
const otyp = otmp.otyp;
const mdat = mtmp.data;
if (otyp === CORPSE && otmp.corpsenm !== undefined
&& touch_petrifies(mons[otmp.corpsenm])
&& !(mtmp.misc_worn_check & W_ARMG) && !resists_ston(mtmp))
return false;
if (otyp === CORPSE && otmp.corpsenm !== undefined
&& is_rider(mons[otmp.corpsenm]))
return false;
if ((game.objects[otyp]?.oc_material ?? 0) === SILVER && mon_hates_silver(mtmp)
&& (otyp !== BELL_OF_OPENING || !is_covetous(mdat)))
return false;
if (!(await touch_artifact(otmp, mtmp)))
return false;
return true;
}
// C ref: monmove.c practical[] and magical[] item class lists
const practical = [WEAPON_CLASS, ARMOR_CLASS, GEM_CLASS, FOOD_CLASS];
const magical = [AMULET_CLASS, POTION_CLASS, SCROLL_CLASS, WAND_CLASS,
RING_CLASS, SPBOOK_CLASS];
// C ref: monmove.c:998 mon_would_take_item
export function mon_would_take_item(mtmp, otmp) {
const mdat = mtmp.data;
const maxload = max_mon_load_local(mtmp);
const pctload = maxload > 0
? Math.trunc((curr_mon_load_local(mtmp) * 100) / maxload) : 100;
if (otmp === game.u.uball || otmp === game.u.uchain) return false;
if (mtmp.mtame && otmp.cursed) return false;
if (is_unicorn(mdat) && (game.objects[otmp.otyp]?.oc_material ?? 0) !== GEMSTONE)
return false;
if (!is_mindless(mdat) && !is_animal(mdat) && pctload < 75
&& searches_for_item(mtmp, otmp))
return true;
if (likes_gold(mdat) && otmp.otyp === GOLD_PIECE && pctload < 95)
return true;
if (likes_gems(mdat) && otmp.oclass === GEM_CLASS
&& (game.objects[otmp.otyp]?.oc_material ?? 0) !== MINERAL
&& pctload < 85)
return true;
if (likes_objs(mdat) && practical.includes(otmp.oclass) && pctload < 75)
return true;
if (likes_magic(mdat) && magical.includes(otmp.oclass) && pctload < 85)
return true;
if (throws_rocks(mdat) && otmp.otyp === BOULDER && pctload < 50
&& !Sokoban())
return true;
if (mdat === mons[PM_GELATINOUS_CUBE]
&& otmp.oclass !== ROCK_CLASS && otmp.oclass !== BALL_CLASS
&& !(otmp.otyp === CORPSE && touch_petrifies(mons[otmp.corpsenm])))
return true;
return false;
}
// C ref: monmove.c:1036 mon_would_consume_item
function mon_would_consume_item(mtmp, otmp) {
if (otmp.otyp === CORPSE && otmp.corpsenm !== undefined
&& !touch_petrifies(mons[otmp.corpsenm])
&& corpse_eater(mtmp.data))
return true;
if (mtmp.mtame && has_edog(mtmp)) {
const ftyp = dogfood(mtmp, otmp);
if (ftyp < MANFOOD
&& (ftyp < ACCFOOD || (EDOG(mtmp)?.hungrytime ?? 0) <= game.moves))
return true;
}
return false;
}
// C ref: mondata.h corpse_eater macro
function corpse_eater(ptr) {
if (!ptr) return false;
return ptr === mons[PM_PURPLE_WORM]
|| ptr === mons[PM_BABY_PURPLE_WORM]
|| ptr === mons[PM_GHOUL]
|| ptr === mons[PM_PIRANHA];
}
function metallivorous(ptr) {
return !!(ptr?.mflags1 & 0x80000000); // M1_METALLIVORE
}
// C ref: mon.c:1448 meatmetal()
async function meatmetal_local(mtmp) {
if (mtmp.mtame) return 0;
for (let otmp = fobj_at(mtmp.mx, mtmp.my); otmp; otmp = otmp.nexthere) {
if ((mtmp.data === mons[PM_RUST_MONSTER] && !is_rustprone(otmp))
|| otmp.otyp === AMULET_OF_STRANGULATION
|| otmp.otyp === RIN_SLOW_DIGESTION
|| (otmp.opoisoned && !resists_poison(mtmp))) {
continue;
}
if (!is_metallic(otmp) || obj_resists(otmp, 5, 95)
|| !(await touch_artifact(otmp, mtmp))) {
continue;
}
if (mtmp.data === mons[PM_RUST_MONSTER] && otmp.oerodeproof) {
otmp.oerodeproof = 0;
mtmp.mstun = 1;
continue;
}
mtmp.meating = Math.trunc((otmp.owt || 0) / 2) + 1;
delobj(otmp);
if (mtmp.dead) return 2;
if (rnd(25) < 3)
mksobj_at(ROCK, mtmp.mx, mtmp.my, true, false);
newsym(mtmp.mx, mtmp.my);
return 1;
}
return 0;
}
// Lightweight load helpers (avoid circular import from dogmove if needed)
function curr_mon_load_local(mtmp) {
let curload = 0;
for (let obj = mtmp?.minvent; obj; obj = obj.nobj) {
if (obj.otyp !== BOULDER || !throws_rocks(mtmp?.data))
curload += obj.owt || weight(obj);
}
return curload;
}
function max_mon_load_local(mtmp) {
const mdat = mtmp?.data;
if (!mdat) return 1;
let maxload;
const strongmonst_fn = (d) => !!(d?.mflags2 & M2_STRONG);
if (!mdat.cwt) {
maxload = (1000 * (mdat.msize || 0)) / MZ_HUMAN;
} else if (!strongmonst_fn(mdat) || (strongmonst_fn(mdat) && (mdat.cwt > 1450))) {
maxload = (1000 * mdat.cwt) / 1450;
} else {
maxload = 1000;
}
if (!strongmonst_fn(mdat)) maxload /= 2;
maxload = Math.trunc(maxload);
return maxload < 1 ? 1 : maxload;
}
// C ref: monmove.c obj.h — is_mines_prize / is_soko_prize
function is_mines_prize(o) {
return !!(game.context?.achieveo?.mines_prize_oid
&& o.o_id === game.context.achieveo.mines_prize_oid);
}
function is_soko_prize(o) {
return !!(game.context?.achieveo?.soko_prize_oid
&& o.o_id === game.context.achieveo.soko_prize_oid);
}
// fobj_at: imported from pickup.js
// ============================================================================
// m_search_items — C ref: monmove.c:1328-1449
// Monster looks for nearby items it wants and adjusts goal accordingly.
// ============================================================================
const SQSRCHRADIUS = 5;
async function m_search_items(mtmp, result) {
const g = game;
let minr = SQSRCHRADIUS;
const omx = mtmp.mx, omy = mtmp.my;
const ptr = mtmp.data;
// cut down search radius if hero seems closer
if (distmin(mtmp.mux, mtmp.muy, omx, omy) < SQSRCHRADIUS
&& !mtmp.mpeaceful)
minr--;
// guards shouldn't get too distracted
if (!mtmp.mpeaceful && is_mercenary(ptr))
minr = 1;
// in shop, usually skip (C: goto finish_search)
let skipSearch = false;
if (is_shop_square(omx, omy) && (rn2(25) || mtmp.isshk))
skipSearch = true;
const hmx = Math.min(COLNO - 1, omx + minr);
const hmy = Math.min(ROWNO - 1, omy + minr);
const lmx = Math.max(1, omx - minr);
const lmy = Math.max(0, omy - minr);
if (!skipSearch) for (let xx = lmx; xx <= hmx; xx++) {
for (let yy = lmy; yy <= hmy; yy++) {
// no object here
if (!fobj_at(xx, yy)) continue;
// found an object closer already
if (minr < distmin(omx, omy, xx, yy)) continue;
// can't reach underwater objects if flying
if (!could_reach_item(mtmp, xx, yy)) continue;
// hiders avoid hero's line of sight
if (hides_under(ptr) && cansee(xx, yy)) continue;
// don't circle around immobile/hidden monster
const mtoo = map_m_at(xx, yy);
if (mtoo && (helpless(mtoo) || mtoo.mundetected
|| (mtoo.mappearance && !mtoo.iswiz)
|| !mtoo.data?.mmove))
continue;
// Don't circle an Elbereth
if (onscary(xx, yy, mtmp)) continue;
// ignore obj if there's a known trap
const ttmp = t_at(xx, yy);
if (ttmp && mon_knows_traps(mtmp, ttmp.ttyp)) {
if (result.ggx === xx && result.ggy === yy) {
result.ggx = mtmp.mux;
result.ggy = mtmp.muy;
}
continue;
}
// avoid items monster can't see
if (!m_cansee(mtmp, xx, yy)) continue;
const costly = costly_spot(xx, yy);
// look through items at this location
for (let otmp = fobj_at(xx, yy); otmp; otmp = otmp.nexthere) {
// skip rocks
if (otmp.otyp === ROCK) continue;
// avoid special items
if (is_mines_prize(otmp) || is_soko_prize(otmp)) continue;
// skip shop merchandise
if (costly && !otmp.no_charge) continue;
if (((mon_would_take_item(mtmp, otmp)
&& (can_carry(mtmp, otmp) > 0))
|| mon_would_consume_item(mtmp, otmp))
&& await can_touch_safely(mtmp, otmp)) {
minr = distmin(omx, omy, xx, yy);
result.ggx = otmp.ox;
result.ggy = otmp.oy;
if (result.ggx === omx && result.ggy === omy) {
result.mmoved = MMOVE_DONE;
return true;
}
// found item of interest; skip rest of pile
break;
}
}
}
}
// finish_search:
if (minr < SQSRCHRADIUS && result.appr === -1) {
if (distmin(omx, omy, mtmp.mux, mtmp.muy) <= 3) {
result.ggx = mtmp.mux;
result.ggy = mtmp.muy;
} else {
result.appr = 1;
}
}
return false;
}
function leppie_avoidance(mtmp) {
if (mtmp?.data !== mons[PM_LEPRECHAUN])
return false;
const lepgold = findgold(mtmp.minvent);
const ygold = findgold(game.invent);
return !!(lepgold && (lepgold.quan || 0) > (ygold?.quan || 0));
}
function m_balks_at_approaching(oldappr, mtmp, pdistmin, pdistmax) {
const mwep = MON_WEP(mtmp);
const x = mtmp.mx;
const y = mtmp.my;
const ux = mtmp.mux;
const uy = mtmp.muy;
const edist = dist2(x, y, ux, uy);
if (pdistmin) pdistmin.value = 0;
if (pdistmax) pdistmax.value = 0;
if (mtmp.mpeaceful || edist >= 25 || !m_canseeu(mtmp))
return oldappr;
if (m_has_launcher_and_ammo(mtmp))
return -1;
if (mwep && is_pole(mwep) && edist <= MON_POLE_DIST)
return -1;
const arw = mwep ? autoreturn_weapon(mwep) : null;
if (arw) {
if (pdistmin) pdistmin.value = 4;
if (pdistmax) pdistmax.value = arw.range || 0;
return -2;
}
if (ranged_attk_available(mtmp)
&& ((mtmp.mhp ?? 0) < Math.trunc(((mtmp.mhpmax ?? 0) + 1) / 3)
|| !(mtmp.mspec_used ?? 0)))
return -1;
return oldappr;
}
function cansee_fn(x, y) {
return couldsee(x, y);
}
// Deaf: imported from macros.js
const Deaf_fn = Deaf;
const _tnnames = ['C note','D flat','D note','E flat','E note','F note','F sharp','G note','G sharp','A note','B flat','B note'];
function trapnote_fn(trap) {
const tn = _tnnames[trap.tnote ?? 0] || 'C note';
return (/^[AEIOU]/i.test(tn) ? 'an ' : 'a ') + tn;
}
// ============================================================================
// mon_track_add / mon_track_clear — C ref: monmove.c:79-93
// ============================================================================
export function mon_track_add(mtmp, x, y) {
if (!Array.isArray(mtmp.mtrack) || mtmp.mtrack.length !== MTSZ) {
mtmp.mtrack = Array.from({ length: MTSZ }, () => ({ x: 0, y: 0 }));
}
for (let i = MTSZ - 1; i > 0; i--) {
mtmp.mtrack[i] = { ...mtmp.mtrack[i - 1] };
}
mtmp.mtrack[0] = { x, y };
}
export function mon_track_clear(mtmp) {
mtmp.mtrack = Array.from({ length: MTSZ }, () => ({ x: 0, y: 0 }));
}
// mon_knows_traps / mon_learns_traps — imported from mondata.js
// ============================================================================
// mb_trapped — C ref: monmove.c:55
// ============================================================================
export async function mb_trapped(mtmp, canseeit) {
const { flags } = game;
if (flags?.verbose) {
if (canseeit /* && !Unaware */)
await pline("KABOOM!! You see a door explode.");
else
await You(`hear a ${(dist2(mtmp.mx, mtmp.my, game.u?.ux ?? 0, game.u?.uy ?? 0) > 7 * 7) ? 'distant' : 'nearby'} explosion.`);
}
wake_nearto(mtmp.mx, mtmp.my, 7 * 7);
mtmp.mstun = 1;
mtmp.mhp -= rnd(15);
if (mtmp.mhp <= 0 || mtmp.dead) {
await mondied(mtmp);
if (mtmp.mhp <= 0 || mtmp.dead)
return true;
// will get here if lifesaved
}
mon_learns_traps(mtmp, D_TRAPPED);
return false;
}
// ============================================================================
// onscary — C ref: monmove.c:242
// ============================================================================
export function onscary(x, y, mtmp) {
const auditoryScare = (x === 0 && y === 0);
const magicalScare = !auditoryScare;
// C: direct scare resistors: Wizard, lawful minions, Angels, Riders.
if (mtmp.iswiz || is_lminion(mtmp) || mtmp.data === mons[PM_ANGEL]
|| is_rider(mtmp.data)) {
return false;
}
// C: humans and unique-corpsestat monsters resist magical scaring.
if (magicalScare
&& (mtmp.data?.mlet === S_HUMAN || unique_corpstat(mtmp.data))) {
return false;
}
// C: shopkeepers in own shop and priests in own temple are fearless.
if ((mtmp.isshk && inhishop(mtmp))
|| (mtmp.ispriest && inhistemple(mtmp))) {
return false;
}
if (auditoryScare) return true;
const loc = game.level?.at?.(x, y);
if (loc && IS_ALTAR(loc.typ)
&& (mtmp.data?.mlet === S_VAMPIRE || is_vampshifter(mtmp))) {
return true;
}
if (sobj_at(SCR_SCARE_MONSTER, x, y)) return true;
const ep = sengr_at('Elbereth', x, y, true);
if (!ep) return false;
const elberethApplies = (
u_at(x, y)
|| (Displaced() && mtmp.mux === x && mtmp.muy === y)
|| (ep.guardobjects && vobj_at(x, y))
);
if (!elberethApplies) return false;
if (mtmp.isshk || mtmp.isgd || !mtmp.mcansee || mtmp.mpeaceful
|| mtmp.data === mons[PM_MINOTAUR]
|| Inhell() || In_endgame(game.u?.uz)) {
return false;
}
return true;
}
// ============================================================================
// mon_regen — C ref: monmove.c:308
// ============================================================================
export function mon_regen(mon, digest_meal) {
if ((game.moves || 0) % 20 === 0 /* || regenerates(mon.data) */) {
// healmon(mon, 1, 0)
if (mon.mhp < mon.mhpmax) {
mon.mhp += 1;
if (mon.mhp > mon.mhpmax)
mon.mhp = mon.mhpmax;
}
}
if (mon.mspec_used)
mon.mspec_used--;
if (digest_meal) {
if (mon.meating) {
mon.meating--;
if (mon.meating <= 0)
mon.meating = 0; // finish_meating simplified
}
}
}
// ============================================================================
// disturb — C ref: monmove.c:328
// ============================================================================
// C ref: monmove.c:330-358 — full disturb logic
function disturb(mtmp) {
if (!couldsee(mtmp.mx, mtmp.my)
|| dist2(mtmp.mx, mtmp.my, game.u?.ux ?? 0, game.u?.uy ?? 0) > 100)
return 0;
// C: (!Stealth || (PM_ETTIN && rn2(10))) — Stealth not yet implemented,
// treat as !Stealth (always true), so no rn2(10) consumed
// C: !(nymph || jabberwock || leprechaun) || !rn2(50)
if ((mtmp.data?.mlet === S_NYMPH
|| mtmp.data === mons[PM_JABBERWOCK]
|| mtmp.data?.mlet === S_LEPRECHAUN)
&& rn2(50))
return 0;
// C: Aggravate || (dog/human) || (!rn2(7) && not mimic)
// Aggravate_monster not yet implemented, treat as false
if (mtmp.data?.mlet === S_DOG || mtmp.data?.mlet === S_HUMAN) {
// dogs and humans always wake
} else if (rn2(7)
|| M_AP_TYPE(mtmp) === M_AP_FURNITURE
|| M_AP_TYPE(mtmp) === M_AP_OBJECT) {
return 0;
}
mtmp.msleeping = 0;
return 1;
}
// ============================================================================
// closed_door — C ref: monmove.c:2200
// ============================================================================
export function closed_door(x, y) {
const loc = game.level?.at(x, y);
if (!loc || loc.typ !== DOOR) return false;
const mask = loc.doormask ?? loc.flags ?? 0;
return !!(mask & (D_CLOSED | D_LOCKED));
}
// C ref: monmove.c:2186 accessible()
// Returns true if position (x,y) has accessible terrain and no closed door.
export function accessible(x, y) {
const loc = game.level?.at(x, y);
if (!loc) return false;
// C ref: monmove.c:2186 — uses SURFACE_AT to handle drawbridge_up
const surfaceTyp = (loc.typ === DRAWBRIDGE_UP)
? db_under_typ(loc.drawbridgemask ?? 0)
: loc.typ;
return ACCESSIBLE(surfaceTyp) && !closed_door(x, y);
}
// ============================================================================
// m_everyturn_effect — C ref: monmove.c:663
// ============================================================================
export async function m_everyturn_effect(mtmp) {
const is_u = mtmp === game.youmonst;
const x = is_u ? game.u.ux : mtmp.mx;
const y = is_u ? game.u.uy : mtmp.my;
if (mtmp.data === mons[PM_FOG_CLOUD]) {
const cd = closed_door(x, y) ? 1 : 0;
const vr = visible_region_at(x, y) ? 1 : 0;
pushRngLogEntry(`^fog_everyturn[${PM_FOG_CLOUD}@${x},${y} cd=${cd} vr=${vr}]`);
if (!cd && !vr) {
await create_gas_cloud(x, y, 1, 0); /* harmless vapor */
}
}
}
// C ref: monmove.c:672 m_postmove_effect()
async function m_postmove_effect(mtmp) {
// For monsters this is called before relocation, so use current location.
const x = mtmp.mx;
const y = mtmp.my;
if (mtmp.data === mons[PM_HEZROU]) {
await create_gas_cloud(x, y, 1, 8);
} else if (mtmp.data === mons[PM_STEAM_VORTEX] && !mtmp.mcan) {
await create_gas_cloud(x, y, 1, 0);
}
}
// C ref: monmove.c:1227 holds_up_web()
function holds_up_web(x, y) {
if (!isok(x, y)) return true;
const loc = game.level?.at?.(x, y);
if (!loc) return true;
if (IS_OBSTRUCTED(loc.typ) || loc.typ === IRONBARS) {
return true;
}
if ((loc.typ === STAIRS || loc.typ === LADDER)) {
const stway = stairway_at(x, y);
if (stway?.up) return true;
}
return false;
}
// C ref: monmove.c:1244 count_webbing_walls()
function count_webbing_walls(x, y) {
return (holds_up_web(x, y - 1) ? 1 : 0)
+ (holds_up_web(x + 1, y) ? 1 : 0)
+ (holds_up_web(x, y + 1) ? 1 : 0)
+ (holds_up_web(x - 1, y) ? 1 : 0);
}
// C ref: monmove.c:1252 soko_allow_web()
function soko_allow_web(mon) {
if (!Sokoban()) return true;
const stway = stairway_find_dir(true);
return !!(stway && m_cansee(mon, stway.sx, stway.sy));
}
// C ref: monmove.c:1269 maybe_spin_web()
async function maybe_spin_web(mtmp) {
if (!webmaker(mtmp.data)
|| helpless(mtmp)
|| mtmp.mspec_used
|| t_at(mtmp.mx, mtmp.my)
|| !soko_allow_web(mtmp)) {
return;
}
const prob = (((mtmp.data === mons[PM_GIANT_SPIDER]) ? 15 : 5)
* (count_webbing_walls(mtmp.mx, mtmp.my) + 1))
- (3 * count_traps(WEB));
const trap = (rn2(1000) < prob)
? await maketrap(mtmp.mx, mtmp.my, WEB)
: null;
if (!trap) return;
mtmp.mspec_used = c_d(4, 4); // C: d(4, 4) = 4..16
if (cansee(mtmp.mx, mtmp.my)) {
await pline(`${Monnam(mtmp)} spins a web.`);
trap.tseen = true;
}
if (in_rooms(mtmp.mx, mtmp.my, SHOPBASE)) {
add_damage(mtmp.mx, mtmp.my, 0);
}
}
// ============================================================================
// set_apparxy — C ref: monmove.c:2217
// ============================================================================
export function set_apparxy(mtmp) {
const g = game;
const u = g.u;
let mx = mtmp.mux;
let my = mtmp.muy;
if (mtmp.mtame || mtmp === u.ustuck || u_at(mx, my)) {
mtmp.mux = u.ux;
mtmp.muy = u.uy;
return;
}
const notseen = !mtmp.mcansee || (Invis() && !perceives(mtmp.data));
const notthere = Displaced() && (mtmp.data !== mons[PM_DISPLACER_BEAST]);
const umoney = money_cnt(g.invent);
let displ;
if (Underwater()) {
displ = 1;
} else if (notseen) {
displ = (mtmp.data === mons[PM_XORN] && umoney) ? 0 : 1;
} else if (notthere) {
displ = couldsee(mx, my) ? 2 : 1;
} else {
displ = 0;
}
if (!displ) {
mtmp.mux = u.ux;
mtmp.muy = u.uy;
return;
}
const gotu = notseen ? !rn2(3) : notthere ? !rn2(4) : false;
if (!gotu) {
let tryCnt = 0;
do {
if (++tryCnt > 200) {
mx = u.ux;
my = u.uy;
break;
}
mx = u.ux - displ + rn2(2 * displ + 1);
my = u.uy - displ + rn2(2 * displ + 1);
} while (!isok(mx, my)
|| (displ !== 2 && mx === mtmp.mx && my === mtmp.my)
|| ((mx !== u.ux || my !== u.uy)
&& !passes_walls(mtmp.data)
&& !(accessible_monmove(mx, my)
|| (closed_door(mx, my)
&& (can_ooze_fn(mtmp) || can_fog_fn(mtmp)))))
|| !couldsee(mx, my));
} else {
mx = u.ux;
my = u.uy;
}
mtmp.mux = mx;
mtmp.muy = my;
}
// ============================================================================
// distfleeck — C ref: monmove.c:533
// ============================================================================
export async function distfleeck(mtmp, result) {
const ux = mtmp.mux ?? game.u?.ux ?? 0;
const uy = mtmp.muy ?? game.u?.uy ?? 0;
// C: bravegremlin = (rn2(5) == 0) — always consumed
const bravegremlin = (rn2(5) === 0);
// Distance checks
const dx = mtmp.mx - ux, dy = mtmp.my - uy;
const d2 = dx * dx + dy * dy;
const inRange = (d2 <= BOLT_LIM * BOLT_LIM) ? 1 : 0;
// C ref: *nearby = *inrange && monnear(mtmp, mtmp->mux, mtmp->muy)
const nearby = (inRange && monnear(mtmp, ux, uy)) ? 1 : 0;
// C ref: monmove.c distfleeck — check seescaryx/seescaryy based on visibility
let seescaryx, seescaryy;
if (!mtmp.mcansee || (Invis() && !perceives(mtmp.data))) {
seescaryx = mtmp.mux ?? game.u?.ux ?? 0;
seescaryy = mtmp.muy ?? game.u?.uy ?? 0;
} else {
seescaryx = game.u?.ux ?? 0;
seescaryy = game.u?.uy ?? 0;
}
const sawscary = onscary(seescaryx, seescaryy, mtmp);
// C ref: flees_light(mon) — gremlins flee from lit artifacts
const fleesLight = mtmp.data === mons[PM_GREMLIN]
&& ((game.u?.uwep?.lamplit && artifact_light(game.u.uwep))
|| (game.u?.uarm?.lamplit && artifact_light(game.u.uarm)))
&& mtmp.mcansee && couldsee(mtmp.mx, mtmp.my);
let scared = 0;
if (nearby && (sawscary
|| (fleesLight && !bravegremlin)
|| (!mtmp.mpeaceful && in_your_sanctuary(mtmp, 0, 0)))) {
scared = 1;
const fleeDur = rn2(7) ? 10 : 100;
const fleeTime = rnd(fleeDur);
await monflee(mtmp, fleeTime, true, true);
}
if (result) {
result.inrange = inRange;
result.nearby = nearby;
result.scared = scared;
}
pushRngLogEntry(`^distfleeck[${formatMonsterEventRef(mtmp)} in=${inRange} near=${nearby} scare=${scared} brave=${bravegremlin ? 1 : 0} saw=${sawscary ? 1 : 0} light=0 sanct=0 mux=${mtmp.mux ?? 0} muy=${mtmp.muy ?? 0} ux=${game.u.ux} uy=${game.u.uy} see=${mtmp.mcansee ? 1 : 0} tame=${mtmp.mtame || 0} conf=${mtmp.mconf ? 1 : 0} stun=${mtmp.mstun ? 1 : 0} inv=${mtmp.minvis ? 1 : 0}]`);
}
// monflee — use canonical version from mon.js (which now includes mon_track_clear)
// ============================================================================
// mfndpos — C ref: monmove.c (mfndpos.h) via mon.c:2125
// ============================================================================
// mfndpos — canonical version is in mon.js (supports ALLOW_DIG flag).
// Re-exported here for dogmove.js and other importers.
// Do NOT duplicate the implementation — import from mon.js.
export { mfndpos };
// Removed duplicate mfndpos (was 74 lines). The mon.js version handles
// ALLOW_DIG terrain for digging monsters, which this copy lacked.
/* removed: export function mfndpos(mtmp) {
pushRngLogEntry('>mfndpos');
const map = game.level;
const positions = [];
const x = mtmp.mx, y = mtmp.my;
const nowtyp = map?.at(x, y)?.typ ?? 0;
const forbidDiag = nodiag(mtmp);
const allowM = !!mtmp?.mtame;
const maxx = Math.min(x + 1, COLNO - 1);
const maxy = Math.min(y + 1, ROWNO - 1);
for (let nx = Math.max(1, x - 1); nx <= maxx; nx++) {
for (let ny = Math.max(0, y - 1); ny <= maxy; ny++) {
if (nx === x && ny === y) continue;
const loc = map?.at(nx, ny);
if (!loc) continue;
const ntyp = loc.typ;
if (!ACCESSIBLE(ntyp)) continue;
// Diagonal restriction near doors
if (nx !== x && ny !== y) {
if (forbidDiag) continue;
if (nowtyp === DOOR) {
const mask = (map?.at(x, y)?.doormask ?? map?.at(x, y)?.flags ?? 0);
if (mask & ~D_BROKEN) continue;
}
if (ntyp === DOOR) {
const mask = (loc.doormask ?? loc.flags ?? 0);
if (mask & ~D_BROKEN) continue;
}
}
// Closed/locked door handling
if (ntyp === DOOR) {
const mask = loc.doormask ?? loc.flags ?? 0;
const blockedByClosed = !!(mask & D_CLOSED) && !monster_can_open_doors(mtmp);
const blockedByLocked = !!(mask & D_LOCKED);
if (blockedByClosed || blockedByLocked) continue;
}
// Skip hero position
if (u_at(nx, ny)) continue;
const trap = map?.trapAt?.(nx, ny) || null;
if (trap && !mtmp.mtame && !m_harmless_trap(mtmp, trap)
&& mon_knows_traps(mtmp, trap.ttyp)) {
continue;
}
const occupant = map.monsters?.find(m => !m.dead && m.mx === nx && m.my === ny) || null;
if (occupant && !allowM) continue;
let info = 0;
if (u_at(nx, ny)) {
info |= ALLOW_U;
}
if (mtmp.mtame) {
info |= ALLOW_M;
info |= ALLOW_TRAPS;
info |= ALLOW_SANCT;
info |= ALLOW_SSM;
}
if (occupant && mtmp.mtame && occupant.mpeaceful) {
info |= ALLOW_MDISP;
}
positions.push({ x: nx, y: ny, occupant, info,
allowM: !!occupant && !!(info & ALLOW_M) });
}
}
pushRngLogEntry(\`<mfndpos=\${positions.length}\`);
return positions;
} */
// ============================================================================
// mon_note_trap_at — squeaky board notifications etc.
// ============================================================================
async function mon_note_trap_at(mtmp, x, y) {
const trap = game.level?.trapAt?.(x, y) || null;
if (trap && !m_harmless_trap(mtmp, trap)) {
mon_learns_traps(mtmp, trap.ttyp);
if (trap.ttyp === SQKY_BOARD) {
const noteNames = [
'C note', 'D flat', 'D note', 'E flat',
'E note', 'F note', 'F sharp', 'G note',
'G sharp', 'A note', 'B flat', 'B note',
];
const note = noteNames[(trap.tnote ?? 0) % 12] || 'C note';
const range = couldsee(mtmp.mx, mtmp.my)
? (BOLT_LIM + 1) : (BOLT_LIM - 3);
const nearby = dist2(game.u?.ux ?? 0, game.u?.uy ?? 0, mtmp.mx, mtmp.my)
<= range * range;
await pline(`You hear ${an(note)} squeak ${nearby ? 'nearby' : 'in the distance'}.`);
}
}
}
// ============================================================================
// mintrap_monster — C ref: trap.c mintrap() monster path
// ============================================================================
export async function mintrap_monster(mtmp) {
if (!mtmp || mtmp.dead) return;
const trap = game.level?.traps?.find(t => t.tx === mtmp.mx && t.ty === mtmp.my);
if (!trap) return 0;
await mon_note_trap_at(mtmp, mtmp.mx, mtmp.my);
if (trap.ttyp === SQKY_BOARD) {
return mtmp.mtrapped ? 2 : 0;
}
if (trap.ttyp === DART_TRAP) {
if (trap.once && trap.tseen && !rn2(15)) {
return 0;
}
trap.once = 1;
const otmp = mksobj(DART, true, false);
otmp.quan = 1;
otmp.owt = weight(otmp);
otmp.opoisoned = 0;
otmp.ox = trap.tx;
otmp.oy = trap.ty;
if (!rn2(6)) {
otmp.opoisoned = 1;
}
const strike = (find_mac(mtmp) + 7 + (otmp.spe || 0) <= rnd(20));
if (!strike) {
place_object(otmp, mtmp.mx, mtmp.my);
const objects = game.level?.objects || [];
for (const other of objects) {
if (!other || other === otmp) continue;
if (other.ox !== otmp.ox || other.oy !== otmp.oy) continue;
if (other.otyp !== otmp.otyp) continue;
if ((other.opoisoned || 0) !== (otmp.opoisoned || 0)) continue;
other.quan = (other.quan || 1) + (otmp.quan || 1);
obj_extract_self(otmp);
break;
}
} else {
mtmp.mhp -= 1;
if (mtmp.mhp <= 0) {
await mondied(mtmp);
return 1;
}
}
return mtmp.mtrapped ? 2 : 0;
}
// C ref: trap.c SQKY_BOARD monster path — squeaky board message
if (trap.ttyp === SQKY_BOARD) {
if (m_in_air(mtmp)) return 0;
const in_sight = cansee_fn(mtmp.mx, mtmp.my);
if (in_sight) {
if (!Deaf_fn()) {
const tn = trapnote_fn(trap);
await pline(`A board beneath ${mon_nam(mtmp)} squeaks ${tn} loudly.`);
}
} else {
const tn = trapnote_fn(trap);
const ux = game.u?.ux ?? 0, uy = game.u?.uy ?? 0;
const dx = ux - mtmp.mx, dy = uy - mtmp.my;
const dist = dx*dx + dy*dy;
const range = 10; // BOLT_LIM + 1
await You_hear(`${tn} squeak ${dist <= range * range ? 'nearby' : 'in the distance'}.`);
}
wake_nearto(mtmp.mx, mtmp.my, 40);
return 0;
}
if (trap.ttyp === PIT || trap.ttyp === SPIKED_PIT) {
const spiked = trap.ttyp === SPIKED_PIT;
if (!passes_walls(mtmp.data))
mtmp.mtrapped = 1;
const in_sight = cansee_fn(mtmp.mx, mtmp.my);
if (in_sight) {
const mname = monsterSubjectName(mtmp);
const whose = trap.madeby_u ? 'your' : 'a';
await pline(`${mname} falls into ${whose} pit!`);
}
const damage = rnd(spiked ? 10 : 6);
mtmp.mhp -= damage;
if (mtmp.mhp <= 0) {
if (in_sight) {
const mname = monsterSubjectName(mtmp);
await pline(`${mname} is killed!`);
}
await mondied(mtmp);
return 1;
}
}
return 0;
}
// ============================================================================
// postmov — C ref: monmove.c:1475
// ============================================================================
export async function postmov(mtmp, omx, omy, mmoved, can_open, can_unlock, can_tunnel = false) {
const g = game;
const map = g.level;
const ptr = mtmp.data;
if (mmoved === 1) { // MMOVE_MOVED
newsym(omx, omy);
// C ref: monmove.c:1509 — real mintrap, not simplified stub
const trapret = await mintrap(mtmp, 0);
// C ref: monmove.c:1532 — Trap_Killed_Mon OR Trap_Moved_Mon
// both terminate this monster turn as MMOVE_DIED.
if (mtmp.dead
|| trapret === 1 /* Trap_Killed_Mon */
|| trapret === 4 /* Trap_Moved_Mon */) {
if (mtmp.mx) newsym(mtmp.mx, mtmp.my);
return 2; // MMOVE_DIED
}
// C ref: postmov — open doors (or unlock+open) after movement.
const loc = map?.at(mtmp.mx, mtmp.my);
if (loc && loc.typ === DOOR && !passes_walls(ptr) && !can_tunnel) {
const mask = loc.doormask ?? loc.flags ?? 0;
const btrapped = !!(mask & D_TRAPPED);
let canSeeDoor = couldsee(mtmp.mx, mtmp.my);
const verbose = game.flags?.verbose !== false;
const unblockDoor = (newMask) => {
// C ref: monmove.c UnblockDoor macro in postmov():
// update door state, refresh map + blocking, then recalc vision.
loc.doormask = newMask;
newsym(mtmp.mx, mtmp.my);
recalc_block_point(mtmp.mx, mtmp.my);
vision_recalc(0);
canSeeDoor = canSeeDoor || cansee(mtmp.mx, mtmp.my);
};
if ((mask & D_LOCKED) && can_unlock) {
unblockDoor(btrapped ? D_NODOOR : D_ISOPEN);
if (verbose) {
if (canSeeDoor && canseemon(mtmp)) {
await pline(`${Monnam(mtmp)} unlocks and opens a door.`);
} else if (canSeeDoor) {
await You_see('a door unlock and open.');
} else {
await You_hear('a door unlock and open.');
}
}
} else if (mask === D_CLOSED && can_open) {
unblockDoor(btrapped ? D_NODOOR : D_ISOPEN);
if (verbose) {
if (canSeeDoor && canseemon(mtmp)) {
await pline(`${Monnam(mtmp)} opens a door.`);
} else if (canSeeDoor) {
await You_see('a door open.');
} else {
await You_hear('a door open.');
}
}
}
}
// C ref: monmove.c postmov -- tunnel/dig after door handling.
if (can_tunnel && may_dig_local(mtmp.mx, mtmp.my)
&& await mdig_tunnel(mtmp)) {
return 2; // MMOVE_DIED
}
// C ref: postmov newsym at new position
newsym(mtmp.mx, mtmp.my);
}
// C ref: monmove.c:1679 — pickup phase runs for MMOVE_MOVED and MMOVE_DONE.
if ((mmoved === 1 || mmoved === MMOVE_DONE)
&& obj_at(mtmp.mx, mtmp.my) && mtmp.mcanmove) {
// C ref: monmove.c:1683 -> mon.c:1448
if (metallivorous(ptr)) {
if (await meatmetal_local(mtmp) === 2)
return 2; // MMOVE_DIED
}
if (await mpickstuff_local(mtmp))
mmoved = MMOVE_DONE;
}
if (mmoved === 1 || mmoved === MMOVE_DONE) {
await maybe_spin_web(mtmp);
}
// C ref: monmove.c postmov() — hide-under / eel concealment upkeep.
if (mmoved === 1 || mmoved === MMOVE_DONE) {
if (hides_under(ptr) || ptr?.mlet === S_EEL) {
if (mtmp.mundetected || (!helpless(mtmp) && rn2(5))) {
await hideunder_with_message(mtmp);
}
newsym(mtmp.mx, mtmp.my);
}
}
return mmoved;
}
// C ref: mon.c:1832 mpickstuff() — pick one floor object stack for this monster.
async function mpickstuff_local(mtmp) {
// Prevent shopkeepers from leaving their shop door to shop around.
if (mtmp.isshk && is_shop_square(mtmp.mx, mtmp.my))
return false;
// Non-tame monsters normally don't go shopping.
if (!mtmp.mtame && is_shop_square(mtmp.mx, mtmp.my) && rn2(25))
return false;
// Item in water/lava but monster cannot reach it.
if (!could_reach_item(mtmp, mtmp.mx, mtmp.my))
return false;
for (let otmp = fobj_at(mtmp.mx, mtmp.my); otmp; otmp = otmp.nexthere) {
if (is_mines_prize(otmp) || is_soko_prize(otmp))
continue;
if (!mon_would_take_item(mtmp, otmp))
continue;
if (!(await can_touch_safely(mtmp, otmp)))
continue;
const carryamt = can_carry(mtmp, otmp);
if (!carryamt)
continue;
// Keep behavior conservative until splitobj path is ported here.
if ((otmp.quan ?? 1) !== carryamt)
continue;
if (cansee(mtmp.mx, mtmp.my)) {
const otmpname = distant_name(otmp, doname);
if (game.flags?.verbose !== false)
await pline(`${Monnam(mtmp)} picks up ${otmpname}.`);
}
obj_extract_self(otmp);
await mpickobj(mtmp, otmp);
// C ref: mon.c:1888-1890 — after any pickup, flag deferred
// gear reevaluation for next monster turn.
check_gear_next_turn(mtmp);
newsym(mtmp.mx, mtmp.my);
return true;
}
return false;
}
// ============================================================================
// dochugw — C ref: monmove.c:205
// ============================================================================
export async function dochugw(mtmp, chug) {
const g = game;
const x = mtmp.mx, y = mtmp.my;
// C ref: monmove.c:214 — track if hero could already see this monster
const already_saw_mon = (chug && g.occupation) ? canspotmon(mtmp) : false;
const rd = chug ? await dochug(mtmp) : 0;
// C ref: monmove.c:224-236 — if monster moved close enough to threaten
// the hero during an occupation, interrupt the occupation.
if (g.occupation && !rd
&& (Hallucination() || (!mtmp.mpeaceful && !noattacks(mtmp.data)))
&& mdistu(mtmp) <= (BOLT_LIM + 1) * (BOLT_LIM + 1)
&& (!already_saw_mon || !couldsee(x, y)
|| distu(x, y) > (BOLT_LIM + 1) * (BOLT_LIM + 1))
&& canspotmon(mtmp) && couldsee(mtmp.mx, mtmp.my)
&& mtmp.mcanmove && !onscary(g.u.ux, g.u.uy, mtmp))
await stop_occupation();
return rd;
}
// ============================================================================
// dochug — C ref: monmove.c:707
// ============================================================================
export async function dochug(mtmp) {
assertNotInModal('dochug');
const mdat = mtmp.data;
// C ref: monmove.c:710-714 — check for wait status change.
if ((mtmp.mstrategy & STRAT_WAITFORU)
&& (m_canseeu(mtmp) || mtmp.mhp < mtmp.mhpmax)) {
mtmp.mstrategy &= ~STRAT_WAITFORU;
}
// C ref: monmove.c:720-728 — frozen/waiting monsters can't act.
if (!mtmp.mcanmove || (mtmp.mstrategy & STRAT_WAITMASK)) {
if (Hallucination()) {
newsym(mtmp.mx, mtmp.my);
}
if (mtmp.mcanmove
&& (mtmp.mstrategy & STRAT_CLOSE)
&& !mtmp.msleeping
&& monnear(mtmp, game.u.ux, game.u.uy)) {
await quest_talk(mtmp);
}
return 0;
}
// C: sleeping monsters — wake check
if (mtmp.msleeping) {
if (!disturb(mtmp)) {
if (Hallucination()) {
newsym(mtmp.mx, mtmp.my);
}
return 0;
}
}
// C ref: monmove.c:751-752 — active monsters wipe floor engravings.
wipe_engr_at(mtmp.mx, mtmp.my, 1, false);
// C: confused recovery (1/50 chance)
if (mtmp.mconf && !rn2(50))
mtmp.mconf = 0;
// C: stunned recovery (1/10 chance)
if (mtmp.mstun && !rn2(10))
mtmp.mstun = 0;
// C ref: monmove.c:766-772 — fleeing teleporting monsters may teleport
// Teleportation costs a turn (return 0).
if (mtmp.mflee && !rn2(40) && can_teleport(mdat)
&& !mtmp.iswiz && !noteleport_level(mtmp)) {
await rloc(mtmp, RLOC_MSG);
return 0;
}
// C ref: monmove.c:775 — monster special responses (shrieker/medusa/erinys).
await m_respond(mtmp);
if (DEADMONSTER(mtmp))
return 1;
// C ref: monmove.c:779-782 — fleeing monsters might regain courage
// NOTE: must be AFTER m_respond, matching C ordering
if (mtmp.mflee && !mtmp.mfleetim && mtmp.mhp === mtmp.mhpmax
&& !rn2(25))
mtmp.mflee = 0;
// C ref: monmove.c:765-768 — cease conflict-induced grab/swallow.
if (mtmp === game.u?.ustuck
&& mtmp.mpeaceful
&& !mtmp.mconf
&& !Conflict()) {
if (game.u?.uswallow) {
await expels(mtmp, mtmp.data, true);
} else if (!sticks(game.youmonst?.data)) {
set_ustuck(null);
await You('get released!');
}
return 0;
}
set_apparxy(mtmp);
// C ref: monmove.c:799 — covetous monsters may teleport via tactics
if (is_covetous(mdat)) {
await tactics(mtmp);
if (mtmp.mstate)
return 0;
set_apparxy(mtmp);
}
// C: distfleeck
const fleeResult = { inrange: 0, nearby: 0, scared: 0 };
await distfleeck(mtmp, fleeResult);
// C ref: monmove.c:815-822 — search for and use defensive/misc items
if (find_defensive(mtmp, false)) {
if ((await use_defensive(mtmp)) !== 0)
return 1;
} else if (await find_misc(mtmp)) {
if ((await use_misc(mtmp)) !== 0)
return 1;
}
let inrange = fleeResult.inrange;
let nearby = fleeResult.nearby;
let scared = fleeResult.scared;
// C ref: monmove.c:813-827 — Demonic blackmail.
if (nearby
&& mdat?.msound === MS_BRIBE
&& mtmp.mpeaceful
&& !mtmp.mtame
&& !game.u?.uswallow) {
if (mtmp.mux !== game.u?.ux || mtmp.muy !== game.u?.uy) {
await pline(`${cansee(mtmp.mux, mtmp.muy) ? Monnam(mtmp) : 'It'} whispers at thin air.`);
if (is_demon(game.youmonst?.data)) {
if (!tele_restrict(mtmp))
await rloc(mtmp, RLOC_MSG);
} else {
mtmp.minvis = 0;
mtmp.perminvis = 0;
if (canseemon(mtmp))
set_msg_xy(mtmp.mx, mtmp.my);
await pline(`${Amonnam(mtmp)} gets angry!`);
mtmp.mpeaceful = 0;
set_malign(mtmp);
}
} else if (await demon_talk(mtmp)) {
return 1;
}
}
// C ref: monmove.c:828-830 — watch duty special branch.
if (is_watch(mdat)) {
await watch_on_duty_local(mtmp);
}
// Phase 2: movement decision (C monmove.c:882-904)
let panicattk = false;
// C ref: monmove.c:847-860
// If monster is in range and should (re)wield a melee weapon,
// that can consume its turn before m_move().
if ((!mtmp.mpeaceful || Conflict()) && inrange
&& dist2(mtmp.mx, mtmp.my, mtmp.mux, mtmp.muy) <= 8
&& attacktype(mdat, AT_WEAP)) {
const mw_tmp = MON_WEP(mtmp);
if (!(scared && mw_tmp && is_pick(mw_tmp))
&& mtmp.weapon_check === NEED_WEAPON
&& !(mtmp.mtrapped && !nearby && await select_rwep(mtmp))) {
mtmp.weapon_check = NEED_HTH_WEAPON;
if ((await mon_wield_item(mtmp)) !== 0)
return 0;
}
}
let skipMove = (!nearby || mtmp.mflee || scared || mtmp.mconf || mtmp.mstun
|| (mtmp.minvis && !rn2(3))
|| (mdat?.mlet === S_LEPRECHAUN && !findgold_invent() && (findgold_minvent(mtmp) || rn2(2)))
|| (is_wanderer(mdat) && !rn2(4))
|| (Conflict() && !mtmp.iswiz)
|| (!mtmp.mcansee && !rn2(4))
|| mtmp.mpeaceful);
// Phase 3: movement
let status = 0;
let postFleeResult = null;
if (skipMove) {
// C ref: monmove.c:906-924 — undirected spellcasting
const NATTK = 6;
if (!mtmp.mspec_used
&& dist2(mtmp.mx, mtmp.my, game.u.ux, game.u.uy) <= 49) {
const mattk = mdat?.mattk;
if (mattk) {
for (let ai = 0; ai < Math.min(mattk.length, NATTK); ai++) {
const a = mattk[ai];
if (a && a.aatyp === AT_MAGC
&& (a.adtyp === AD_SPEL || a.adtyp === AD_CLRC)) {
const castResult = await castmu(mtmp, a, false, false);
if (castResult & 1 /* M_ATTK_HIT */) {
status = 3; // MMOVE_DONE
break;
}
}
}
}
}
if (!status) {
status = await m_move(mtmp);
}
// C ref: monmove.c:912 — if monster moved off-map in m_move(),
// dochug returns immediately and skips distfleeck() recalculation.
if ((mtmp.mstate ?? MON_FLOOR) !== MON_FLOOR)
return 1;
// C ref: recalculate distfleeck AFTER m_move
if (!mtmp.dead) {
postFleeResult = { inrange: 0, nearby: 0, scared: 0 };
await distfleeck(mtmp, postFleeResult);
}
}
// Local helpers matching C behavior
function m_next2u(mon) { return monnear(mon, game.u?.ux, game.u?.uy); }
function unstuck(mon) { if (game.u.ustuck === mon) game.u.ustuck = null; }
// C ref: monmove.c:936 — recalculate after m_move
if (postFleeResult) {
inrange = postFleeResult.inrange;
nearby = postFleeResult.nearby;
scared = postFleeResult.scared;
}
// C ref: monmove.c:938-979 — switch on m_move result
switch (status) {
case MMOVE_NOMOVES:
if (scared) panicattk = true;
// FALLTHROUGH
case MMOVE_NOTHING: // no movement, can still attack
case MMOVE_DONE: // absolutely no movement
if (mtmp.isgd && (DEADMONSTER(mtmp) || mtmp.mx === 0))
return 1;
if (Hallucination()) newsym(mtmp.mx, mtmp.my);
break;
case MMOVE_MOVED: // monster moved
if (mtmp === game.u.ustuck && !m_next2u(mtmp))
unstuck(mtmp);
if (helpless(mtmp)) return 0;
// C ref: monmove.c:966-970 — monsters can move and shoot on same turn
if (!nearby
&& (ranged_attk_available(mtmp)
|| attacktype(mdat, AT_WEAP)
|| find_offensive(mtmp)))
break; // fall through to Phase 4
if (engulfing_u(mtmp))
return await mattacku_canonical(mtmp);
return 0;
case MMOVE_DIED:
return 1;
}
// Phase 4: Standard Attacks
// C ref: monmove.c:986-997 — uses post-m_move inrange/scared
if (status !== MMOVE_DONE
&& (!mtmp.mpeaceful || (Conflict() && !resist_conflict(mtmp)))) {
if (((inrange && !scared) || panicattk) && !noattacks(mdat)
&& (Upolyd() ? game.u.mh : game.u.uhp) > 0) {
if (await mattacku_canonical(mtmp))
return 1;
}
}
return (status === MMOVE_DIED) ? 1 : 0;
}
// Old local mattacku/hitmu/mhitm_mgc_atk_negated removed —
// dochug now uses canonical mattacku from mhitu.js.
import { You, You_hear, You_see, pline, set_msg_xy } from './pline.js';
import { castmu } from './mcastu.js';
import { dog_move } from './dogmove.js';
// ============================================================================
// grow_up — C ref: makemon.c:2059
// ============================================================================
export function grow_up(mtmp, victim) {
if (!mtmp || DEADMONSTER(mtmp))
return null;
const ptr = mtmp.data;
let max_increase, cur_increase;
if (victim) {
// C ref: makemon.c:2092-2095 — killed another monster
const victimLevel = victim.m_lev ?? victim.data?.mlevel ?? 0;
max_increase = rnd(victimLevel + 1);
cur_increase = (max_increase > 1) ? rn2(max_increase) : 0;
} else {
// C ref: makemon.c:2100 — gain level potion or wraith corpse
max_increase = cur_increase = rnd(8);
}
mtmp.mhpmax = (mtmp.mhpmax || 0) + max_increase;
mtmp.mhp = (mtmp.mhp || 0) + cur_increase;
// C ref: makemon.c:2107-2108 — threshold check and level-up logic
// not fully ported. The RNG calls (rnd/rn2) above are the critical
// part for parity; the actual level-up mechanics are deferred.
return ptr || null;
}
// ============================================================================
// m_move — C ref: monmove.c:1733
// ============================================================================
export async function m_move(mtmp) {
assertNotInModal('m_move');
pushRngLogEntry('>m_move');
const g = game;
const log_m_move_exit = (code) => {
if (!g.program_state?.gameover)
pushRngLogEntry(`<m_move=${code}`);
};
const omx = mtmp.mx, omy = mtmp.my;
// C ref: monmove.c:1731 — trapped monster tries to escape before moving
if (mtmp.mtrapped) {
const i = await mintrap(mtmp, 0);
if (i === 1 /* Trap_Killed_Mon */) {
newsym(mtmp.mx, mtmp.my);
log_m_move_exit(2);
return 2; // MMOVE_DIED
}
if (i === 2 /* Trap_Caught_Mon */) {
log_m_move_exit(0);
return 0; // MMOVE_NOTHING
}
}
// C: mtmp->meating check
if (mtmp.meating) {
mtmp.meating--;
log_m_move_exit(3);
return 3; // MMOVE_DONE
}
const ptr = mtmp.data;
const floorObj = fobj_at(mtmp.mx, mtmp.my);
if (hides_under(ptr)
&& can_hide_under_obj_local(floorObj)
&& rn2(10)) {
log_m_move_exit(0);
return 0; // MMOVE_NOTHING
}
set_apparxy(mtmp);
const can_open = !(nohands_fn(ptr) || verysmall_fn(ptr));
const can_unlock = can_open && monhaskey_fn(mtmp);
let can_tunnel = tunnels(ptr) && !is_rogue_level(g.u?.uz);
if (can_tunnel && needspick(ptr)
&& ((!mtmp.mpeaceful || Conflict())
&& dist2(mtmp.mx, mtmp.my, mtmp.mux, mtmp.muy) <= 8)) {
can_tunnel = false;
}
// C: if tame, call dog_move
if (mtmp.mtame) {
// C ref: monmove.c:1771-1772 — tame movement always returns through
// postmov(), with dog_move() as mmoved.
const ret = await postmov(
mtmp, omx, omy,
await dog_move(mtmp),
can_open, can_unlock, can_tunnel
);
log_m_move_exit(ret);
return ret;
}
// C ref: monmove.c:1824-1845 — shopkeeper/guard/priest special movement.
if (mtmp.isshk || mtmp.isgd || mtmp.ispriest) {
const xm = mtmp.isshk
? await (await import('./shknam.js')).shk_move(mtmp)
: (mtmp.isgd
? await (await import('./vault.js')).gd_move(mtmp)
: await (await import('./priest.js')).pri_move(mtmp));
if (xm === -2) {
log_m_move_exit(2);
return 2; // MMOVE_DIED
}
if (xm === -1) {
// C ref: monmove.c:1833-1846 — "-1" means "let m_move do it";
// keep running the regular m_move path (do not return via postmov).
}
else if (xm === 0 || xm === 1) {
const ret = await postmov(mtmp, omx, omy, xm === 1 ? 1 : 0, can_open, can_unlock, can_tunnel);
log_m_move_exit(ret);
return ret;
}
}
// Goal and approach direction — C ref: monmove.c:1870-1908
let ggx = mtmp.mux ?? g.u?.ux ?? mtmp.mx;
let ggy = mtmp.muy ?? g.u?.uy ?? mtmp.my;
let appr = mtmp.mflee ? -1 : 1;
let preferredrange_min = 0;
let preferredrange_max = 0;
let getitems = false;
if (mtmp.mconf || engulfing_u(mtmp)) {
appr = 0;
} else {
// C ref: monmove.c:1883-1886 — should_see: can monster plausibly see hero?
const should_see = couldsee(omx, omy)
&& (g.level?.at(ggx, ggy)?.lit || !g.level?.at(omx, omy)?.lit)
&& (dist2(omx, omy, ggx, ggy) <= 36);
// C ref: monmove.c:1863-1870 — conditions that make monster wander (appr=0)
if (!mtmp.mcansee
|| (should_see && Invis() && !perceives(ptr) && rn2(11))
|| (U_AP_TYPE() === M_AP_OBJECT
&& (game.youmonst?.mappearance ?? 0) === STRANGE_OBJECT)
|| g.u?.uundetected
|| (U_AP_TYPE() === M_AP_OBJECT
&& (game.youmonst?.mappearance ?? 0) === GOLD_PIECE
&& !likes_gold(ptr))
|| (mtmp.mpeaceful && !mtmp.isshk)
|| ((ptr === mons[PM_STALKER] || ptr?.mlet === S_BAT
|| ptr?.mlet === S_LIGHT) && !rn2(3)))
appr = 0;
if (appr === 1 && leppie_avoidance(mtmp))
appr = -1;
const prmin = { value: 0 };
const prmax = { value: 0 };
appr = m_balks_at_approaching(appr, mtmp, prmin, prmax);
preferredrange_min = prmin.value;
preferredrange_max = prmax.value;
// C ref: monmove.c:1899-1905 — track-based goal when monster can't see hero
if (!should_see && can_track(ptr)) {
const cp = gettrack(omx, omy);
if (cp) {
ggx = cp.x;
ggy = cp.y;
}
}
}
// C ref: monmove.c:1910-1923
if ((!mtmp.mpeaceful || !rn2(10)) && !is_rogue_level(g.u?.uz)) {
// C ref: monmove.c:1916-1919 — uses ACURRSTR (condensed 3-25), not raw ACURR
const in_line = lined_up(mtmp)
&& (distmin(mtmp.mx, mtmp.my, mtmp.mux, mtmp.muy)
<= (throws_rocks(g.youmonst?.data) ? 20 : (Math.trunc(ACURRSTR() / 2) + 1)));
if (appr !== 1 || !in_line) {
getitems = true;
}
}
// C ref: monmove.c:1904 — m_search_items redirects monster goal to nearby items
if (getitems && !mtmp.mtame) {
const searchResult = { ggx, ggy, mmoved: 0, appr };
if (await m_search_items(mtmp, searchResult)) {
// C ref: monmove.c:1928 — return through postmov() even on item short-circuit.
const ret = await postmov(
mtmp, omx, omy, searchResult.mmoved,
can_open, can_unlock, can_tunnel,
);
log_m_move_exit(ret);
return ret;
}
ggx = searchResult.ggx;
ggy = searchResult.ggy;
appr = searchResult.appr;
}
// Compute allowflags (C ref: mon.c mon_allowflags + monmove.c m_move)
const flag = mon_allowflags(mtmp);
// Find valid positions
const positions = mfndpos(mtmp, flag);
const cnt = positions.length;
// C ref: monmove.c:1950-1954 — no positions available
if (cnt === 0 && !is_unicorn(mtmp.data)) {
if (find_defensive(mtmp, true) && (await use_defensive(mtmp))) {
log_m_move_exit(MMOVE_DONE);
return MMOVE_DONE;
}
log_m_move_exit(MMOVE_NOMOVES);
return MMOVE_NOMOVES;
}
if (cnt === 0) {
log_m_move_exit(MMOVE_NOMOVES);
return MMOVE_NOMOVES;
}
const jcnt = Math.min(MTSZ, cnt - 1);
let nix = omx, niy = omy;
let chi = -1;
let chcnt = 0;
let nidist = dist2(nix, niy, ggx, ggy);
// C ref: monmove.c:1934-1936 — shortsighted levels limit monster pursuit range
if (!mtmp.mpeaceful && g.level?.flags?.shortsighted
&& nidist > (couldsee(nix, niy) ? 144 : 36) && appr === 1)
appr = 0;
// C ref: monmove.c:1940-1945 — unicorns on no-teleport levels avoid
// line-to-hero squares if they have any alternative.
let avoid = false;
if (is_unicorn(ptr) && noteleport_level(mtmp)) {
for (let i = 0; i < cnt; i++) {
if (!(positions[i].info & NOTONL)) {
avoid = true;
break;
}
}
}
let mmoved = 0; // MMOVE_NOTHING
const better_with_displacing = should_displace(mtmp, positions, ggx, ggy);
for (let i = 0; i < cnt; i++) {
const nx = positions[i].x;
const ny = positions[i].y;
const info = positions[i].info || 0;
if (avoid && (info & NOTONL))
continue;
// C ref: monmove.c:1971-1972
if (m_avoid_kicked_loc(mtmp, nx, ny))
continue;
// C ref: monmove.c:1975-1977
if (map_m_at(nx, ny) && (info & ALLOW_MDISP) && !(info & ALLOW_M)
&& !better_with_displacing) {
continue;
}
// Backtrack avoidance
if (appr !== 0 && Array.isArray(mtmp.mtrack)) {
let skipPos = false;
for (let j = 0; j < jcnt; j++) {
const prev = mtmp.mtrack[j];
if (prev && nx === prev.x && ny === prev.y) {
if (rn2(4 * (cnt - j))) {
skipPos = true;
break;
}
}
}
if (skipPos) continue;
}
const ndist = dist2(nx, ny, ggx, ggy);
const nearer = (ndist < nidist);
let randomChoose = false;
if (appr === 0) {
const choiceBound = ++chcnt;
const choiceRoll = rn2(choiceBound);
randomChoose = (choiceRoll === 0);
}
if ((appr === 1 && nearer)
|| (appr === -1 && !nearer)
|| (appr === -2
&& ((ndist <= preferredrange_min && !nearer)
|| (ndist >= preferredrange_max && nearer)))
|| randomChoose
|| (mmoved === 0)) {
nix = nx;
niy = ny;
nidist = ndist;
chi = i;
mmoved = 1; // MMOVE_MOVED
}
}
if (mmoved && m_digweapon_check(mtmp, nix, niy)) {
log_m_move_exit(3);
return 3; // MMOVE_DONE
}
// C ref: monmove.c:2025-2061 — resolve target occupancy before movement.
if (mmoved && chi >= 0) {
const info = positions[chi]?.info || 0;
if (info & ALLOW_U) {
nix = mtmp.mux;
niy = mtmp.muy;
}
if (u_at(nix, niy)) {
log_m_move_exit(0);
return 0; // MMOVE_NOTHING
}
if ((info & ALLOW_M) || (nix === mtmp.mux && niy === mtmp.muy)) {
const ret = await m_move_aggress(mtmp, nix, niy);
log_m_move_exit(ret);
return ret;
}
if (info & ALLOW_MDISP) {
const mtmp2 = map_m_at(nix, niy);
const mstatus = mtmp2 ? await mdisplacem(mtmp, mtmp2, false) : 0;
if (mstatus & (M_ATTK_AGR_DIED | M_ATTK_DEF_DIED)) {
log_m_move_exit(2);
return 2; // MMOVE_DIED
}
if (mstatus & M_ATTK_HIT) {
log_m_move_exit(1);
return 1; // MMOVE_MOVED
}
log_m_move_exit(3);
return 3; // MMOVE_DONE
}
}
if (mmoved) {
// C ref: monmove.c:2038-2039 — abort move if region callbacks disallow it.
if (!m_in_out_region(mtmp, nix, niy)) {
log_m_move_exit(MMOVE_DONE);
return MMOVE_DONE;
}
await m_postmove_effect(mtmp);
// C ref: monmove.c:2047-2057 — move on map via remove/place; for
// long worms, keep tail connectivity with worm_move().
remove_monster(omx, omy);
place_monster(mtmp, nix, niy);
if (mtmp.wormno)
worm_move(mtmp);
maybe_unhide_at(mtmp.mx, mtmp.my);
mon_track_add(mtmp, omx, omy);
const ret = await postmov(mtmp, omx, omy, mmoved, can_open, can_unlock, can_tunnel);
log_m_move_exit(ret);
return ret;
}
// C ref: monmove.c:2067-2074 — long worm shrinks tail when it fails to move.
if (mtmp.wormno)
worm_nomove(mtmp);
log_m_move_exit(0);
return 0;
}
// C ref: monmove.c:2108 m_move_aggress()
async function m_move_aggress(mtmp, x, y) {
let mstatus = 0;
const mtmp2 = map_m_at(x, y);
if (mtmp2) {
mstatus = await mattackm(mtmp, mtmp2);
}
if ((mstatus & M_ATTK_AGR_DIED) || DEADMONSTER(mtmp)) {
return 2; // MMOVE_DIED
}
if ((mstatus & (M_ATTK_HIT | M_ATTK_DEF_DIED)) === M_ATTK_HIT
&& rn2(4) && (mtmp2?.movement ?? 0) > rn2(NORMAL_SPEED)) {
if ((mtmp2.movement ?? 0) > NORMAL_SPEED)
mtmp2.movement -= NORMAL_SPEED;
else
mtmp2.movement = 0;
mstatus = await mattackm(mtmp2, mtmp);
if (mstatus & M_ATTK_DEF_DIED)
return 2; // MMOVE_DIED
}
return 3; // MMOVE_DONE
}
// wake_nearto / wake_nearby / wakeup — use canonical versions from mon.js
// ============================================================================
// dist2 / mnearto — re-export from hacklib for convenience
// ============================================================================
// C ref: mon.c:4018 mnearto — place monster near (x,y)
// Returns: 2 if another monster was displaced, 1 if placed, 0 if failed
export async function mnearto(mtmp, x, y, move_other, rlocflags) {
if (process?.env?.WEBHACK_MNEARTO_TRACE === '1') {
pushRngLogEntry(
`^mnearto_in[m=${mtmp?.mnum ?? -1} id=${mtmp?.m_id ?? -1} from=${mtmp?.mx ?? -1},${mtmp?.my ?? -1} to=${x},${y} move_other=${move_other ? 1 : 0}]`
);
}
let othermon = null;
let res = 1;
if (mtmp.mx === x && mtmp.my === y && map_m_at(x, y) === mtmp)
return res;
if (move_other) {
othermon = map_m_at(x, y);
if (othermon) {
if (othermon.wormno) remove_worm(othermon);
else remove_monster(x, y);
// Take othermon off the map temporarily
othermon.mx = othermon.my = 0;
othermon.mstate = (othermon.mstate || 0) | 0x01; // MON_OFFMAP
}
}
let newx = x;
let newy = y;
if (!goodpos(newx, newy, mtmp, 0)) {
const mm = { x: newx, y: newy };
if (!enexto(mm, newx, newy, mtmp.data) || !isok(mm.x, mm.y)) {
if (othermon) {
// Can't place — deal with displaced monster
// C ref: deal_with_overcrowding — for now, try rloc
othermon.mx = x;
othermon.my = y;
othermon.mstate = (othermon.mstate || 0) & ~0x01;
}
return 0;
}
newx = mm.x;
newy = mm.y;
}
await rloc_to_flag(mtmp, newx, newy, rlocflags);
if (move_other && othermon) {
res = 2;
if (!await mnearto(othermon, x, y, false, rlocflags)) {
// deal_with_overcrowding — try rloc as fallback
othermon.mx = x;
othermon.my = y;
othermon.mstate = (othermon.mstate || 0) & ~0x01;
}
}
return res;
}
// ============================================================================
// m_avoid_kicked_loc — C ref: monmove.c:1297
// ============================================================================
// Peaceful/tame monster avoids stepping on the last-kicked location next to hero.
export function m_avoid_kicked_loc(mtmp, nx, ny) {
if ((mtmp.mpeaceful || mtmp.mtame)
&& mtmp.mcansee
&& !mtmp.mconf && !mtmp.mstun
&& !Conflict()
&& game.kickedloc && isok(game.kickedloc.x, game.kickedloc.y)
&& nx === game.kickedloc.x && ny === game.kickedloc.y
&& game.u && Math.abs(nx - game.u.ux) <= 1 && Math.abs(ny - game.u.uy) <= 1)
return true;
return false;
}
// ============================================================================
// m_avoid_soko_push_loc — C ref: monmove.c:1313
// ============================================================================
export function m_avoid_soko_push_loc(mtmp, nx, ny) {
const ux = game.u?.ux ?? nx;
const uy = game.u?.uy ?? ny;
const bx = nx + sgn(ux - nx);
const by = ny + sgn(uy - ny);
const hasBoulder = !!sobj_at(BOULDER, bx, by);
const isSoko = Sokoban();
if (isSoko
&& (mtmp.mpeaceful || mtmp.mtame)
&& !mtmp.mconf && !mtmp.mstun
&& !Conflict()
&& dist2(nx, ny, ux, uy) === 4
&& hasBoulder)
return true;
return false;
}
/*monmove.js*/
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