Press n or j to go to the next uncovered block, b, p or k for the previous block.
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2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 71x | // allmain.js — Game loop skeleton (port of allmain.c)
// Critical: phase ordering must match C exactly (see DECISIONS.md #15).
//
// moveloop_core() structure:
// 1. Bookkeeping (flags, bypasses, sanity)
// 2. if (context.move) { monster movement, turn-end, moves++ }
// 3. Display update
// 4. Get player input
// 5. Execute player command (rhack)
// 6. Cleanup (deferred_goto, vision)
//
// Monster turns from the PREVIOUS command execute at the TOP of the
// NEXT iteration, gated by context.move. On the first iteration,
// context.move is false — the player acts first.
import { beginCommandExec, endCommandExec, game } from './gstate.js';
// Mail daemon — lazy import on first call to avoid breaking if missives_data.js absent.
let _ckmailstatus = undefined; // undefined = not yet loaded, null = unavailable
async function ckmailstatus_wrapper() {
if (_ckmailstatus === undefined) {
_ckmailstatus = null; // mark as attempted
import('./missives.js').then(m => { _ckmailstatus = m.ckmailstatus; }).catch(() => {});
return; // skip this turn, available next turn
}
if (_ckmailstatus) await _ckmailstatus();
}
import { A_CON, A_DEX, A_INT, A_STR, A_WIS, ACH_ASTR, ACH_ENDG, ACH_HELL, COLNO, DISMOUNT_FELL, ENERGY_REGENERATION, EXT_ENCUMBER, FAINTED, FAINTING, FAST, FULL_MOON, INTRINSIC, isok, KILLED_BY, LOW_PM, LR_DOWNTELE, LR_UPTELE, MAGIC_PORTAL, MM_NOWAIT, MOD_ENCUMBER, NEW_MOON, NON_PM, NORMAL_SPEED, NOT_HUNGRY, ROLE_FEMALE, ROLE_GENDMASK, ROLE_MALE, ROOM, ROWNO, RUN_CRAWL, RUN_LEAP, RUN_TPORT, SATIATED, UNENCUMBERED, UTOTYPE_ATSTAIRS, UTOTYPE_FALLING, UTOTYPE_PORTAL, WEAK } from './const.js';
import { rn2, rnd, rn1, c_d, pushRngLogEntry, pushCtxMoveLog, setRnlPlayerAccessor } from './rng.js';
import { isStartupPromptPhase, more, nhgetch, ynFunction } from './input.js';
import { find_level, qstart_level } from './dungeon.js';
import { assertNotInModal, enterModal, exitModal, setMonMovingGetter } from './modal_guard.js';
import {
create_nhwindow_menu, start_menu, add_menu, add_menu_str,
end_menu, select_menu, destroy_nhwindow_menu,
} from './menu.js';
import { decl_globals_init } from './decl.js';
import { stairway_add, stairway_at, stairway_find_from, u_on_dnstairs, u_on_newpos, u_on_sstairs, u_on_upstairs } from './stairs.js';
import { near_capacity, encumber_msg, pickup, reset_justpicked } from './pickup.js';
import { init_objects } from './o_init.js';
import { role_init } from './role.js';
import { init_dungeons } from './dungeon.js';
import { init_artifacts } from './artifact.js';
import { u_init, u_init_inventory_attrs, u_init_skills_discoveries } from './u_init.js';
import { mklev, l_nhcore_init, level_finalize_topology, mineralize_kelp } from './mklev.js';
import { tutorial_turn } from './sp_lev.js';
import { movebubbles, place_lregion } from './mkmaze.js';
import { change_luck, check_special_room, end_running, lookaround, losehp, monster_nearby, unmul } from './hack.js';
import { u_wipe_engr } from './engrave.js';
import { tutorial } from './nhlua.js';
import { cansee, vision_reset, vision_recalc } from './vision.js';
import { any_light_source } from './light.js';
import { level_difficulty, makedog, makemon } from './makemon.js';
import { domove, dosearch0, nomul, rhack } from './cmd.js';
import { clear_bypasses } from './worn.js';
import { Norep, maybe_lvltport_feedback, temperature_change_msg, u_collide_m } from './do.js';
import {
keepdogs as keepdogs_impl,
losedogs as losedogs_impl,
mon_catchup_elapsed_time,
set_malign,
} from './dog.js';
import { m_at } from './map_access.js';
import { ok_to_quest, onquest } from './quest.js';
import { com_pager as quest_com_pager, deliver_splev_message } from './questpgr.js';
import { emitTurnMapstate } from './mapstate.js';
import { gethungry as gethungry_impl, reset_eat } from './eat.js';
import { seetrap, selftouch } from './trap.js';
import { ballrelease, drag_down } from './ball.js';
import { welded } from './wield.js';
import { dismount_steed } from './steed.js';
import {
movemon,
mcalcmove,
mcalcdistress,
hide_monst,
initrack,
m_next2u,
settrack,
stop_occupation,
} from './mon.js';
import { m_everyturn_effect } from './monmove.js';
import { bot, cls, curs_on_u, delay_output, display_nhwindow, docrt, docrt_cls, find_ac, flush_glyph_buf, flush_screen, newsym, render_screen_output_to_display, setBotl, setBotlx, setTimeBotl, status_initialize, timebot, tty_clear_nhwindow, tty_display_nhwindow, tty_dismiss_nhwindow, tty_destroy_nhwindow, tty_create_nhwindow, erase_menu_or_text, docorner, NHW_MENU } from './display.js';
import { reglyph_darkroom } from './drawing.js';
import { phase_of_the_moon, friday_13th, time_from_yyyymmddhhmmss } from './calendar.js';
import { ACURR, exerchk, exercise } from './attrib.js';
import { NO_COLOR } from './terminal.js';
import {
mons, NUMMONS, G_NOCORPSE,
PM_KNIGHT, PM_ROGUE, PM_SAMURAI, PM_TOURIST, PM_VALKYRIE, PM_WIZARD, PM_WIZARD_OF_YENDOR,
} from './monsters.js';
import { S_room } from './symbols.js';
import { cmap_to_glyph as _cmap_to_glyph_am } from './glyph.js';
import { pline, putmsghistory, urgent_pline, verbalize, You, You_feel, You_hear } from './pline.js';
import { align_gname } from './pray.js';
import { Blind, Breathless, Deaf, Fumbling, Half_physical_damage, Maybe_Half_Phys, Polymorph, Punished, Role_if, Teleportation, Upolyd, Unchanging, In_endgame, Is_waterlevel, Is_airlevel, Very_fast, Fast } from './macros.js';
import { nh_timeout, do_storms, fall_asleep, run_timers } from './timeout.js';
import { dosounds } from './sounds.js';
import { tele } from './teleport.js';
import { next_to_u, check_leash } from './apply.js';
import { polyself } from './polyself.js';
import { you_were } from './were.js';
import { night } from './calendar.js';
import { run_regions } from './region.js';
import { set_wear } from './do_wear.js';
import { GameMap } from './game.js';
import { invault } from './vault.js';
import { on_level } from './hacklib.js';
import { more_experienced, newexplevel } from './exper.js';
import { makewish } from './zap.js';
import { record_achievement } from './insight.js';
import { age_spells } from './spell.js';
import { place_object } from './mkobj.js';
import { initObjectData } from './objects.js';
const TOPLINE_NEED_MORE = 1;
// C ref: allmain.c:1025 interrupt_multi(msg)
async function interrupt_multi(msg) {
const g = game;
if ((g.multi || 0) > 0 && !g.context?.travel && !g.context?.run) {
nomul(0);
if (g.flags?.verbose && msg)
await Norep('%s', msg);
}
}
// ---------------------------------------------------------------------------
// early_init — C ref: allmain.c early_init()
// Called once at program startup, before anything else.
// ---------------------------------------------------------------------------
export async function early_init() {
// decl_globals_init() — initialize global declaration state
await decl_globals_init();
// C ref: objects.c objects_globals_init() — compute bases[], oclass_prob_totals[]
initObjectData();
// monst_globals_init() — monster class globals
// sys_early_init() — system-specific early init
// runtime_info_init() — runtime info
}
// ---------------------------------------------------------------------------
// newgame — C ref: allmain.c newgame()
// Full new game initialization: objects, role, dungeons, artifacts,
// character, level generation, initial placement, welcome message.
// ---------------------------------------------------------------------------
export async function newgame() {
const g = game;
// notice_mon_off() — suppress monster notices during setup
setBotlx('newgame');
g.context.ident = 2; // id 1 reserved for youmonst
g.context.warnlevel = 1;
g.context.next_attrib_check = 600;
g.context.tribute = { enabled: true };
// Initialize mvitals for all monsters.
if (!Array.isArray(g.mvitals))
g.mvitals = [];
for (let i = LOW_PM; i < NUMMONS; i++) {
if (!g.mvitals[i])
g.mvitals[i] = { mvflags: 0 };
g.mvitals[i].mvflags = mons[i]?.geno & G_NOCORPSE;
}
// C ref: allmain.c newgame() — exact call order matching C
await init_objects(); // must be before u_init()
g.flags.pantheon = -1;
await role_init(); // must be before init_dungeons(), u_init()
await init_dungeons(); // must be before u_init()
await init_artifacts(); // before u_init()
await u_init(); // u_init_misc: handedness, HP, energy
l_nhcore_init(); // create Lua state (nhlib.lua shuffle)
// reset_glyphmap(gm_newgame)
// C ref: newgame → cls() → clear_nhwindow(WIN_MAP)
// MAP falls through to term_clear_screen → erase_tty_screen
// which clears STATUS and MAP again (3 total ^botlx[tty_clear_nhwindow])
await tty_clear_nhwindow('map');
// C ref: float_vs_flight() — check flight/levitation state (before mklev)
setBotl('float_vs_flight');
// C ref: status_initialize() — 2nd call from new_status_window
status_initialize();
await mklev(); // generate first level
await u_on_upstairs(); // place player on stairs
vision_reset(); // C: newgame() resets vision internals here
// C newgame() does not call vision_recalc() before makedog(); keep the
// recalc deferred to moveloop/docrt-driven paths via this flag.
g.vision_full_recalc = 1;
// check_special_room — now called inside goto_level (line ~1514)
// if (MON_AT(u.ux, u.uy)) mnexto(...)
await makedog(); // create starting pet
await u_init_inventory_attrs(); // starting inventory — AFTER mklev
// C ref: docrt_flags → cls → clear_nhwindow(WIN_MAP)
// cls() internally calls tty_display_nhwindow('message', false) matching
// C's cls() → display_nhwindow(WIN_MESSAGE, FALSE) at display.c:2238.
await cls();
// C ref: newgame() does docrt(); flush_screen(1); bot();
// docrt() internally calls cls() which clears all windows.
await docrt();
await flush_screen();
await bot();
// while (u.uroleplay.reroll && reroll_menu()) { ... }
await u_init_skills_discoveries();
if (g.flags.legacy) {
await com_pager(g.u.uroleplay.pauper ? 'pauper_legacy' : 'legacy');
// C ref: questpgr.c:607-608 — synopsis goes into message history
// for ^P recall. C: putmsghistory("[deity has chosen you...]", FALSE)
const deityName = align_gname(g.u.ualignbase?.[0] ?? g.u.ualign?.type ?? 0);
putmsghistory(`[${deityName} has chosen you to recover the Amulet of Yendor for Him.]`);
}
g.urealtime.realtime = 0;
g.urealtime.start_timing = g.getnow();
g.program_state.something_worth_saving++;
await welcome(true);
notice_mon_on();
}
// ---------------------------------------------------------------------------
// moveloop — C ref: allmain.c moveloop()
// Entry point: runs preamble, then loops moveloop_core() forever.
// ---------------------------------------------------------------------------
export async function moveloop(resuming) {
await moveloop_preamble(resuming);
if (!resuming) {
await maybe_do_tutorial();
}
for (;;) {
await moveloop_core();
// C ref: C's done() calls exit() which terminates immediately.
// JS's done() sets gameover=1 and returns; check here to stop.
if (game.program_state?.gameover || game.program_state?.exiting)
break;
}
}
// ---------------------------------------------------------------------------
// moveloop_preamble — C ref: allmain.c moveloop_preamble()
// Side-effects from the real world, initial setup before loop starts.
// ---------------------------------------------------------------------------
export async function moveloop_preamble(resuming) {
const g = game;
// Moon phase and Friday 13th affect luck
g.flags.moonphase = phase_of_the_moon();
if (g.flags.moonphase === FULL_MOON) {
await You("are lucky! Full moon tonight.");
change_luck(1);
} else if (g.flags.moonphase === NEW_MOON) {
await pline("Be careful! New moon tonight.");
}
g.flags.friday13 = friday_13th();
if (g.flags.friday13) {
await pline("Watch out! Bad things can happen on Friday the 13th.");
change_luck(-1);
}
if (!resuming) {
g.program_state.beyond_savefile_load = 1;
// Wire rnl() to read Luck from game state (uluck + moreluck)
setRnlPlayerAccessor(() => g.u);
g.context.rndencode = rnd(9000);
// C ref: allmain.c:76 — apply side-effects of starting gear
await set_wear(null);
reset_justpicked(game.invent);
// pickup(1) — autopickup at initial location — TODO
g.context.seer_turn = rnd(30);
g.u.umovement = NORMAL_SPEED;
initrack();
}
setBotlx('moveloop_preamble');
if (resuming) {
// read_engr_at(u.ux, u.uy)
// fix_shop_damage()
}
// encumber_msg()
g.u.uz0 = { ...g.u.uz };
pushCtxMoveLog('moveloop_preamble', g.context.move);
g.context.move = 0;
g.program_state.in_moveloop = 1;
}
// ---------------------------------------------------------------------------
// moveloop_core — C ref: allmain.c moveloop_core()
// C ref: allmain.c — reallocate movement to all monsters on the level.
// Single site for ^mcalcmove event (one-event-one-place).
function reallocate_monster_movement() {
const g = game;
for (let mtmp = g.fmon; mtmp; mtmp = mtmp.nmon) {
if (mtmp.dead) continue;
const oldMv = mtmp.movement;
mtmp.movement += mcalcmove(mtmp, true);
pushRngLogEntry(`^mcalcmove[${mtmp.mnum}@${mtmp.mx},${mtmp.my} speed=${mtmp.data?.mmove ?? 0} mv=${oldMv}->${mtmp.movement}]`);
}
}
function dmonsfree() {
const g = game;
let prev = null;
for (let m = g.fmon; m; ) {
const next = m.nmon || null;
if (m.dead && !m.isgd) {
if (prev) prev.nmon = next;
else g.fmon = next;
m.nmon = null;
} else {
prev = m;
}
m = next;
}
if (Array.isArray(g.level?.monsters)) {
g.level.monsters = g.level.monsters.filter(m => m && (!m.dead || m.isgd));
}
}
// One tick of the game loop. THIS IS THE CRITICAL FUNCTION.
// Phase ordering must match C exactly.
// ---------------------------------------------------------------------------
export async function moveloop_core() {
const g = game;
setMonMovingGetter(() => g.context?.mon_moving);
let monscanmove = false;
const display = game?.nhDisplay || null;
let commandToken = null;
g.displayEpoch = (g.displayEpoch ?? 0) + 1;
assertNotInModal('moveloop_core');
// --- Bookkeeping ---
// get_nh_event()
// dobjsfree() — includes dmonsfree()
dmonsfree();
if (g.context.bypasses)
clear_bypasses();
// --- Monster movement (gated by context.move) ---
if (g.context.move) {
// actual time passed
g.u.umovement -= NORMAL_SPEED;
do {
// C ref: allmain.c:261 — encumber_msg at top of hero-can't-move loop
await encumber_msg();
g.context.mon_moving = true;
// C ref: allmain.c:251 — record hero HP before monsters act.
// saving_grace() uses this to prevent one-shot death when HP
// was >= 90% of max at the start of the monster turn.
g.uhp_at_start_of_monster_turn = g.u.uhp;
g._monmove_since_capture = true;
// Monster turns may need input (e.g. shopkeeper zaps wand →
// pline → more → nhgetch). Wrap in command exec context so
// nhgetch's assertLegalInputOwner sees a valid token.
// In C, wgetch blocks with no special context needed.
{
const monToken = beginCommandExec(g, { site: 'movemon' });
try {
do {
monscanmove = await movemon();
if (g.program_state?.gameover) break;
if (g.u.umovement >= NORMAL_SPEED)
break; // it's now your turn
} while (monscanmove);
} finally {
endCommandExec(g, monToken);
}
}
// C ref: allmain.c:257 — mon_moving is cleared here, before
// near_capacity and mcalcdistress. Leaving it true through
// mcalcdistress causes set_apparxy inside newcham to fire
// on shapeshifters where C's control flow excludes it (see
// seed0800 vampire-bat mux/muy regression, issue #400).
g.context.mon_moving = false;
let wtcap = near_capacity();
if (!monscanmove && g.u.umovement < NORMAL_SPEED) {
// Both hero and monsters are out of steam
// mcalcdistress() — adjust monster trap/blind/etc
await mcalcdistress();
// Reallocate movement to monsters — use fmon chain (newest first)
reallocate_monster_movement();
// Random monster spawn
const spawn_threshold = g.u.uevent.udemigod ? 25
: (depth_uz() > depth_stronghold()) ? 50 : 70;
if (!rn2(spawn_threshold)) {
await makemon(null, 0, 0, 0);
}
// Hero movement recalculation
u_calc_moveamt(wtcap);
settrack();
g.moves++;
if (g.moves >= 1000000000) {
// display_nhwindow(WIN_MESSAGE, true)
// urgent_pline("The dungeon capitulates.")
// done(ESCAPED)
}
g.hero_seq = g.moves << 3;
if (g.flags.time && !g.context.run)
setTimeBotl('moveloop_core');
// --- Once-per-turn effects ---
// Order must match C allmain.c exactly:
// 1. timed effects + regions
await nh_timeout();
await run_regions();
// 2. bless countdown
if (g.u.ublesscnt) g.u.ublesscnt--;
// C ref: allmain.c:330 — reset saving_grace flag each turn.
g.saving_grace_turn = false;
// 3. HP/PW regeneration (BEFORE dosounds/gethungry!)
// C ref: allmain.c:340-347
if (g.u.uinvulnerable) {
wtcap = UNENCUMBERED;
} else if (!Upolyd() ? (g.u.uhp < g.u.uhpmax)
: (g.u.mh < g.u.mhmax
|| g.youmonst?.data?.mlet === 57 /*S_EEL*/))
await regen_hp(wtcap);
// C ref: allmain.c:297-301 — moving while encumbered is hard work.
if (wtcap > MOD_ENCUMBER && g.u.umoved) {
if (!((wtcap < EXT_ENCUMBER) ? (g.moves % 30) : (g.moves % 10)))
await overexert_hp();
}
await regen_pw(wtcap);
// 4. Teleportation, polymorph checks
// C ref: allmain.c:360-392
if (!g.u.uinvulnerable) {
if (Teleportation() && !rn2(85)) {
const old_ux = g.u.ux, old_uy = g.u.uy;
await tele();
if (g.u.ux !== old_ux || g.u.uy !== old_uy) {
if (!(await next_to_u())) {
await check_leash(old_ux, old_uy);
}
}
}
let mvl_change = g._mvl_change || 0;
if ((mvl_change === 1 && !Polymorph())
|| (mvl_change === 2 && (g.u.ulycn ?? NON_PM) === NON_PM))
mvl_change = 0;
if (Polymorph() && !rn2(100))
mvl_change = 1;
else if ((g.u.ulycn ?? NON_PM) !== NON_PM && !Upolyd()
&& !rn2(80 - (20 * night())))
mvl_change = 2;
if (mvl_change && !Unchanging()) {
if (g.multi >= 0) {
await stop_occupation();
if (mvl_change === 1)
await polyself(0);
else
await you_were();
mvl_change = 0;
}
}
g._mvl_change = mvl_change;
}
// 5. auto-search (C: allmain.c:342, between regen and dosounds)
{
const SEARCHING = 34;
if (g.u.uprops?.[SEARCHING]?.intrinsic
&& !g.level?.flags?.noautosearch
&& g.multi >= 0) {
await dosearch0(1, true);
}
}
// 6. dosounds, do_storms, gethungry
await dosounds();
await do_storms();
await gethungry();
// 7. spell aging, exercise, vault, amulet
age_spells();
await exerchk();
await invault();
if (g.u.uhave?.amulet) await amulet();
// 8. engrave wiping
if (!rn2(40 + current_dex() * 3)) {
u_wipe_engr(rnd(3));
}
// C ref: allmain.c:362-367 — Wizard interventions after amulet.
if (g.u.uevent?.udemigod && !g.u.uinvulnerable) {
if (g.u.udg_cnt) g.u.udg_cnt--;
if (!g.u.udg_cnt) {
await intervene();
g.u.udg_cnt = rn1(200, 50);
}
}
// C ref: allmain.c:417-420 — bubble/fumarole processing
if (Is_waterlevel(g.u?.uz) || Is_airlevel(g.u?.uz))
await movebubbles();
// else if (g.level?.flags?.fumaroles) fumaroles(); // TODO: port fumaroles
// C ref: allmain.c — immobility countdown runs during turn-end.
if (g.multi < 0) {
await runmode_delay_output();
if (++g.multi === 0) {
await unmul(null);
if (g.u.utotype)
await deferred_goto();
}
}
// Optional per-turn compact state hash for parity diagnostics.
emitTurnMapstate(g, pushRngLogEntry, 'turn_end');
}
} while (g.u.umovement < NORMAL_SPEED);
g.context.mon_moving = false;
// --- Once-per-hero-took-time ---
g.hero_seq++;
// C ref: allmain.c:471 — encumber_msg after hero acts
await encumber_msg();
// clairvoyance check
if (g.moves >= g.context.seer_turn) {
g.context.seer_turn = g.moves + rn1(31, 15);
}
// sink_into_lava, pooleffects
// see_nearby_monsters()
// (auto-search moved to turn-end block above to match C ordering)
}
// --- Once-per-player-input ---
// clear_splitobjs()
// C ref: allmain.c:515-521 — Amulet of Yendor grants a wish on first pickup
if (g.u.uhave?.amulet && !g.u.uevent?.amulet_wish) {
if (!g.u.uevent) g.u.uevent = {};
g.u.uevent.amulet_wish = 1;
await display_nhwindow('message', true);
await urgent_pline('The Amulet is bestowing a wish upon you!');
await makewish();
}
find_ac();
// C ref: allmain.c:523-529 — while buried/underwater or otherwise not
// in normal movement view mode, perform deferred vision recalc here.
// This pre-command recalc is distinct from the post-rhack recalc at the
// end of moveloop_core and is required for occupation turns.
if (!g.context.mv || Blind()) {
if (g.vision_full_recalc)
vision_recalc();
}
// C ref: allmain.c:530-536 — direct conditional bot + curs_on_u.
// bot/timebot is called directly (not via flush_screen) so midlog
// annotations show "@ moveloop_core" not "@ flush_screen".
// After bot/timebot, C calls curs_on_u() → flush_screen(1) which
// paints gnew entries and positions cursor at hero. JS uses
// flush_glyph_buf + setCursor to match without double-emitting bot.
// When NEITHER bot nor timebot runs, C does NOT flush gnew or set
// cursor — gnew stays pending until the next pline → flush_screen.
if (g.disp.botl || g.disp.botlx) {
await bot();
flush_glyph_buf();
if (g.u?.ux) {
const d = game?.nhDisplay;
if (d) d.setCursor(g.u.ux - 1, g.u.uy + 1);
}
} else if (g.disp.time_botl) {
await timebot();
flush_glyph_buf();
if (g.u?.ux) {
const d = game?.nhDisplay;
if (d) d.setCursor(g.u.ux - 1, g.u.uy + 1);
}
}
// C-shaped input ownership: while getpos/farlook is active, subsequent
// keys belong to that prompt family, not to a fresh moveloop/parse start.
if (g.iflags?.getloc_travelmode || g.iflags?.getloc_tip_active) {
// C ref: getpos positions cursor at targeting location, not hero.
// Use travelcc (or hero if no target) matching C's dotravel → getpos.
{
const tc = g.iflags?.travelcc;
const tx = (tc?.x > 0) ? tc.x : (g.u?.ux ?? 1);
const ty = (tc?.y > 0) ? tc.y : (g.u?.uy ?? 0);
const d = game?.nhDisplay;
if (d) d.setCursor(tx - 1, ty + 1);
}
g.u.umoved = false;
commandToken = beginCommandExec(g, {
site: 'moveloop_core',
multi: g.multi,
move: g.context?.move ?? null,
});
try {
await rhack(0);
} finally {
endCommandExec(g, commandToken, {
site: 'moveloop_core',
multi: g.multi,
move: g.context?.move ?? null,
});
}
vision_recalc();
return;
}
// C ref: allmain.c:538 — hero fog cloud gas creation, etc.
await m_everyturn_effect(g.youmonst);
g.context.move = 1;
pushCtxMoveLog('moveloop_core', g.context.move);
// --- Occupation handling ---
if (g.multi >= 0 && g.occupation) {
if ((await g.occupation()) === 0)
g.occupation = null;
// C ref: allmain.c:576-579 — monster_nearby() interrupts occupation
if (monster_nearby()) {
await stop_occupation();
reset_eat();
}
await runmode_delay_output();
return;
}
g.u.umoved = false;
// --- Multi-turn command handling ---
commandToken = beginCommandExec(g, {
site: 'moveloop_core',
multi: g.multi,
move: g.context?.move ?? null,
});
try {
if (g.multi > 0) {
await lookaround();
await runmode_delay_output();
if (!g.multi) {
g.context.move = 0;
pushCtxMoveLog('moveloop_core', g.context.move);
return;
}
if (g.context.mv) {
if (g.multi < 80 && !--g.multi)
end_running(true);
await domove();
// C: flush_screen(1) after domove updates the terminal so
// the player sees the hero moving step by step during runs.
// In JS, show_glyph_cell → setCell already updated the DOM,
// but the browser won't repaint until we yield. A setTimeout(0)
// yields one event loop turn for the browser to paint.
// Only in browser mode — headless tests don't need this.
if (display?.container) {
await new Promise(r => setTimeout(r, 0));
}
} else {
--g.multi;
await rhack(g.cmd_key);
}
} else if (g.multi === 0) {
// C ref: allmain.c:535-537 — check for mail delivery
await ckmailstatus_wrapper();
// C ref: flush_screen(1) before rhack positions cursor at hero.
// Mail delivery above may have moved cursor to message end.
if (g.u?.ux) {
const d = game?.nhDisplay;
if (d) d.setCursor(g.u.ux - 1, g.u.uy + 1);
}
await rhack(0);
}
} finally {
endCommandExec(g, commandToken, {
site: 'moveloop_core',
multi: g.multi,
move: g.context?.move ?? null,
});
}
// C ref: done() → exit() in C halts immediately. In JS, check here.
if (g.program_state?.gameover) return;
// C ref: allmain.c moveloop_core() — deferred_goto() is called
// after rhack()/domove command handling, before vision_recalc().
if (g.u.utotype)
await deferred_goto();
// C ref: allmain.c:543 — recompute vision only when flagged.
// C sets vision_full_recalc in domove (hero movement), light sources,
// polyself, goto_level, etc. JS may be missing some of these.
if (g.vision_full_recalc) {
vision_recalc();
// C vision_recalc(0) drives visibility redraws itself. JS keeps
// vision_recalc lighter, so refresh map cells here for non-move
// turns (for example, pit escape) where finishHeroMove() did not run.
const forceDarkroomRefresh = !!(g.flags?.dark_room && g.iflags?.wc_color !== false);
if (!g.u.umoved) {
for (let y = 0; y < ROWNO; y++) {
for (let x = 1; x < COLNO; x++) {
newsym(x, y);
}
}
} else if (forceDarkroomRefresh) {
// Keep non-visible room memory in sync with C's dark-room rendering.
// Some cells can stay stale S_room until touched by a later redraw;
// refresh only those unseen room cells that are still lit-room glyphs.
for (let y = 0; y < ROWNO; y++) {
for (let x = 1; x < COLNO; x++) {
const loc = g.level?.at(x, y);
if (!loc || loc.typ !== ROOM || loc.glyph !== _cmap_to_glyph_am(S_room)) continue;
if (cansee(x, y)) continue;
newsym(x, y);
}
}
}
}
// C ref: allmain.c:560-565 — NHCB_END_TURN callback runner.
// Tutorial uses this to inject guidance/events (for example, hunger help).
if (in_tutorial(g.u.uz)) {
await tutorial_turn();
}
}
// C's NOMUX recorder captures the monster turn AFTER the last hero action.
// This function runs just the monster movement + turn-end effects without
// attempting to read hero input. Used by playTurns after all keys.
export async function moveloop_core_monsters_only() {
const g = game;
if (g.u.utotype)
await deferred_goto();
dmonsfree();
if (g.context.move) {
g.u.umovement -= NORMAL_SPEED;
do {
g.context.mon_moving = true;
g.uhp_at_start_of_monster_turn = g.u.uhp;
let monscanmove;
do {
monscanmove = await movemon();
if (g.u.umovement >= NORMAL_SPEED)
break;
} while (monscanmove);
g.context.mon_moving = false;
// C ref: mon.c:1314 — after all monsters move, if any light
// source exists, schedule vision recalc (a monster carrying a
// lamp may have moved, changing what the hero can see).
if (any_light_source())
g.vision_full_recalc = 1;
let wtcap = near_capacity();
if (!monscanmove && g.u.umovement < NORMAL_SPEED) {
await mcalcdistress();
reallocate_monster_movement();
const spawn_threshold = g.u.uevent.udemigod ? 25
: (depth_uz() > depth_stronghold()) ? 50 : 70;
if (!rn2(spawn_threshold)) {
await makemon(null, 0, 0, 0);
}
u_calc_moveamt(wtcap);
settrack();
g.moves++;
g.hero_seq = g.moves << 3;
if (g.flags.time && !g.context.run)
setTimeBotl('moveloop_core');
await nh_timeout();
await run_regions();
if (g.u.ublesscnt) g.u.ublesscnt--;
g.saving_grace_turn = false;
// C ref: allmain.c:356 — outer gate: skip regen if HP full
if (!Upolyd() ? (g.u.uhp < g.u.uhpmax)
: (g.u.mh < g.u.mhmax))
await regen_hp(wtcap);
// C ref: allmain.c:297-301 — moving while encumbered is hard work.
if (wtcap > MOD_ENCUMBER && g.u.umoved) {
if (!((wtcap < EXT_ENCUMBER) ? (g.moves % 30) : (g.moves % 10)))
await overexert_hp();
}
await regen_pw(wtcap);
{
const SEARCHING = 34;
if (g.u.uprops?.[SEARCHING]?.intrinsic
&& !g.level?.flags?.noautosearch
&& g.multi >= 0) {
await dosearch0(1, true);
}
}
await dosounds();
await do_storms();
await gethungry();
age_spells();
await exerchk();
await invault();
if (g.u.uhave?.amulet) await amulet();
if (!rn2(40 + current_dex() * 3)) {
u_wipe_engr(rnd(3));
}
if (g.u.uevent?.udemigod && !g.u.uinvulnerable) {
if (g.u.udg_cnt) g.u.udg_cnt--;
if (!g.u.udg_cnt) {
await intervene();
g.u.udg_cnt = rn1(200, 50);
}
}
// C ref: allmain.c:417-420 — bubble/fumarole processing
if (Is_waterlevel(g.u?.uz) || Is_airlevel(g.u?.uz))
await movebubbles();
if (g.multi < 0) {
await runmode_delay_output();
if (++g.multi === 0) {
await unmul(null);
if (g.u.utotype)
await deferred_goto();
}
}
// Optional per-turn compact state hash for parity diagnostics.
emitTurnMapstate(g, pushRngLogEntry, 'turn_end');
}
} while (g.u.umovement < NORMAL_SPEED);
}
}
// ---------------------------------------------------------------------------
// u_calc_moveamt — C ref: allmain.c u_calc_moveamt()
// Calculate hero movement amount based on speed and encumbrance.
// ---------------------------------------------------------------------------
function u_calc_moveamt(wtcap) {
const g = game;
let moveamt = 0;
if (g.u.usteed && g.u.umoved) {
moveamt = mcalcmove(g.u.usteed, true);
} else {
moveamt = g.youmonst?.data?.mmove ?? NORMAL_SPEED;
if (Very_fast()) {
if (rn2(3) !== 0)
moveamt += NORMAL_SPEED;
} else if (Fast()) {
if (rn2(3) === 0)
moveamt += NORMAL_SPEED;
}
}
switch (wtcap) {
case 0: /* UNENCUMBERED */ break;
case 1: /* SLT_ENCUMBER */ moveamt -= Math.trunc(moveamt / 4); break;
case 2: /* MOD_ENCUMBER */ moveamt -= Math.trunc(moveamt / 2); break;
case 3: /* HVY_ENCUMBER */ moveamt -= Math.trunc(moveamt * 3 / 4); break;
case 4: /* EXT_ENCUMBER */ moveamt -= Math.trunc(moveamt * 7 / 8); break;
}
g.u.umovement += moveamt;
if (g.u.umovement < 0) g.u.umovement = 0;
// Per-step umov tracing so cross-engine divergences are visible in the
// event stream. Emits base (mmove), fast-roll bump, encumbrance drop,
// final delta. Parity with C's u_calc_moveamt instrumentation.
pushRngLogEntry(`^u_calc_moveamt[base=${(g.youmonst?.data?.mmove ?? NORMAL_SPEED)} wtcap=${wtcap} moveamt=${moveamt} umv=${g.u.umovement}]`);
}
// Initialization functions imported from decl.js, o_init.js, role.js,
// dungeon.js, artifact.js, u_init.js
// u_on_upstairs imported from stairs.js (uses stairway_find_dir)
// NOTE: differs from canonical stairs.js — uses isok() guard instead of !game.u,
// and optional-chaining for uz/uz0 level-change check vs explicit null checks.
async function u_on_rndspot(upflag) {
const g = game;
const up = (upflag & 1) !== 0;
const area = up ? (g.updest || {}) : (g.dndest || {});
// C ref: dungeon.c await u_on_rndspot()
// Uses place_lregion() so default-zero regions still consume RNG and
// resolve through bad_location/exclusion checks like C.
await place_lregion(
area.lx || 0, area.ly || 0, area.hx || 0, area.hy || 0,
area.nlx || 0, area.nly || 0, area.nhx || 0, area.nhy || 0,
up ? LR_UPTELE : LR_DOWNTELE,
null
);
}
// makedog imported from makemon.js
// keepdogs and losedogs imported from dog.js (keepdogs_impl, losedogs_impl)
// docrt, bot, timebot imported from display.js
function alignAdj(alignVal) {
return alignVal < 0 ? 'chaotic' : alignVal > 0 ? 'lawful' : 'neutral';
}
function Hello() {
switch (game.urole?.mnum) {
case PM_KNIGHT:
return 'Salutations';
case PM_SAMURAI:
return 'Konnichi wa';
case PM_TOURIST:
return 'Aloha';
case PM_VALKYRIE:
return 'Velkommen';
default:
return 'Hello';
}
}
async function welcome(newGame) {
const display = game?.nhDisplay || null;
const g = game;
if (!display || (!g.promptedStartup && !isStartupPromptPhase())) return;
const currentgend = g.flags.female ? 1 : 0;
let desc = '';
if (newGame) {
desc += ` ${alignAdj(g.u.ualignbase?.[0] ?? 0)}`;
}
const roleHasDistinctFemale = !!g.urole?.name?.f;
const roleAllowsBothGenders =
((g.urole?.allow || 0) & ROLE_GENDMASK) === (ROLE_MALE | ROLE_FEMALE);
if (!roleHasDistinctFemale && newGame && roleAllowsBothGenders) {
desc += currentgend ? ' female' : ' male';
}
const roleName = (currentgend && g.urole?.name?.f) ? g.urole.name.f : g.urole?.name?.m;
desc += ` ${g.urace?.adj || 'human'} ${roleName || 'Adventurer'}`;
// C ref: allmain.c welcome() just calls pline — no docrt. The screen
// is already rendered by newgame's docrt() + flush_screen() + bot().
await pline(`${Hello()} ${g.plname}, welcome to NetHack! You are a${desc}.`);
// C ref: allmain.c:898 — livelog_printf(LL_ACHIEVE, "%s entered the dungeon")
// Populates gg.gamelog for the chronicle (v command / show_gamelog).
if (!g.gamelog) g.gamelog = [];
{
const aAdj = g.flags?.initalign === 0 ? 'lawful'
: g.flags?.initalign === 1 ? 'neutral' : 'chaotic';
const gAdj = g.flags?.female ? 'female' : 'male';
const rAdj = g.urace?.adj || 'human';
const rName = roleName || 'Adventurer';
g.gamelog.push({
turn: g.moves || 1,
text: `${g.plname} the ${aAdj} ${gAdj} ${rAdj} ${rName} entered the dungeon`,
});
}
}
const STARTUP_PAGER_TEXT = {
legacy: `It is written in the Book of %d:
After the Creation, the cruel god Moloch rebelled
against the authority of Marduk the Creator.
Moloch stole from Marduk the most powerful of all
the artifacts of the gods, the Amulet of Yendor,
and he hid it in the dark cavities of Gehennom, the
Under World, where he now lurks, and bides his time.
Your %G %d seeks to possess the Amulet, and with it
to gain deserved ascendance over the other gods.
You, a newly trained %r, have been heralded
from birth as the instrument of %d. You are destined
to recover the Amulet for your deity, or die in the
attempt. Your hour of destiny has come. For the sake
of us all: Go bravely with %d!`,
pauper_legacy: `It is written in the Book of %d:
After the Creation, the cruel god Moloch rebelled
against the authority of Marduk the Creator.
Moloch stole from Marduk the most powerful of all
the artifacts of the gods, the Amulet of Yendor,
and he hid it in the dark cavities of Gehennom, the
Under World, where he now lurks, and bides his time.
Your %G %d seeks to possess the Amulet, and with it
to gain deserved ascendance over the other gods.
You, an untrained %r, have been unable to adequately
prepare to be the instrument of %d. Nevertheless, you
are destined to recover the Amulet for your deity, or die
in the attempt. Your hour of destiny has come. For the
sake of us all: Go bravely with %d!`,
};
function questRankTitle() {
const g = game;
const role = g.urole;
if (!role?.rank?.length) return 'Adventurer';
const firstRank = role.rank[0];
return (g.flags.female && firstRank.f) ? firstRank.f : (firstRank.m || 'Adventurer');
}
function questDeityName() {
const g = game;
let name = '';
switch (g.flags.initalign) {
case 2:
name = g.urole?.lgod || '';
break;
case 1:
name = g.urole?.ngod || '';
break;
case 0:
name = g.urole?.cgod || '';
break;
default:
name = 'someone';
break;
}
return name.startsWith('_') ? name.slice(1) : name;
}
function questDeityTitle() {
const g = game;
const deity = (
g.flags.initalign === 2 ? g.urole?.lgod
: g.flags.initalign === 1 ? g.urole?.ngod
: g.flags.initalign === 0 ? g.urole?.cgod
: null
) || '';
return deity.startsWith('_') ? 'goddess' : 'god';
}
function startupPagerLines(msgid) {
const template = STARTUP_PAGER_TEXT[msgid];
if (!template) return null;
return template
.replaceAll('%d', questDeityName())
.replaceAll('%G', questDeityTitle())
.replaceAll('%r', questRankTitle())
.split('\n');
}
// NOTE: differs from canonical questpgr.js — startup-specific pager with RNG
// consumption, display overlay, and --More-- handling (not com_pager_core).
// Also NEW import edge (questpgr.js does not import allmain.js).
async function com_pager(msgid) {
// C ref: questpgr.c — com_pager() creates a fresh Lua state via nhl_init(),
// which loads nhlib.lua and consumes the align[] shuffle RNG.
rn2(3);
rn2(2);
const display = game?.nhDisplay || null;
const lines = startupPagerLines(msgid);
const showStartupText = game.promptedStartup || isStartupPromptPhase();
if (!display) {
return;
}
if (!lines || !showStartupText) {
// C ref: questpgr.c com_pager_core can still present text (or at least
// xwaitforspace) outside startup; keep the --More-- boundary.
await more(display);
return;
}
// C ref: com_pager_core → deliver_by_window creates NHW_MENU window.
// C's tty_display_nhwindow sets cw->active=1; destroy calls dismiss if active.
const datawin = tty_create_nhwindow(NHW_MENU);
if (game.wins[datawin]) game.wins[datawin].active = true;
// C renders the game map first (via display_gamewindows/docrt), then
// overlays the pager text on rows 0-17. Map content below the pager
// (rows 18+) and status lines (22-23) remain visible.
// Use existing _screen_output (from prior docrt) to preserve correct
// game state (especially AC in status lines). Don't call docrt()
// here as it may recalculate with stale worn-armor state.
if (game._screen_output) {
render_screen_output_to_display(display);
}
const cols = display.cols || 80;
const maxWidth = lines.reduce((m, line) => Math.max(m, line.length), 0);
const promptRow = 17;
// C ref: wintty.c — pager right-aligns text against column 79
const titleCol = cols - maxWidth - 1;
// C's tty_putstr stores maxcol = strlen(str) + 1 (attribute byte),
// then offx = cols - maxcol - 1 = cols - strlen - 2. The dismiss
// events use this offset to match C's erase_menu_or_text parameters.
const dismissOffx = cols - maxWidth - 2;
const clearRowFrom = (row, col) => {
const start = Math.max(0, Math.min(col, cols));
for (let c = start; c < cols; c++) {
display.setCell(c, row, ' ');
}
};
for (let row = 0; row < lines.length && row < promptRow; row++) {
const line = lines[row];
clearRowFrom(row, titleCol - 1);
if (!line) continue;
const leadingSpaces = line.length - line.trimStart().length;
display.putstr(titleCol + leadingSpaces, row, line.trimStart());
}
clearRowFrom(promptRow, titleCol - 1);
display.putstr(titleCol, promptRow, '--More--');
if (typeof display.setCursor === 'function') {
display.setCursor(titleCol + '--More--'.length, promptRow);
}
// Tell docrt() to serialize from grid instead of rebuilding from game
// state. The pager text is rendered directly to the grid; docrt() would
// overwrite it because g.level already exists at this point.
game._menuActive = true;
// C's pager uses xwaitforspace which doesn't touch toplin.
// Don't set toplin to NEED_MORE here — that would trigger
// ^toplin[tty_nhgetch=2] events that C doesn't produce.
enterModal('more');
try {
let ch;
do {
ch = await nhgetch();
} while (ch !== 32 && ch !== 27 && ch !== 13);
} finally {
exitModal('more');
game._menuActive = false;
// C ref: com_pager_core → deliver_by_window → destroy_nhwindow
// C's destroy_nhwindow calls tty_dismiss_nhwindow for active windows,
// which runs erase_menu_or_text → docorner to clean up the overlay.
if (game.level) {
tty_destroy_nhwindow(datawin);
erase_menu_or_text(datawin, dismissOffx, promptRow);
await docorner(dismissOffx, promptRow + 1);
// Repaint the terminal grid after overlay cleanup.
// erase_menu_or_text cleared grid rows, and docorner
// updated the glyph buffer via newsym. Now generate
// a fresh screen and paint it to the grid so subsequent
// grid-based captures (during More prompts) are correct.
const display = game?.nhDisplay || null;
if (display) {
// Generate ANSI output from current glyph state
await docrt(false, true); // captureOnly — no setBotlx
if (game._screen_output) {
render_screen_output_to_display(display);
}
}
} else {
tty_destroy_nhwindow(datawin);
}
}
}
function notice_mon_on() { /* allmain.c */ }
// movemon, mcalcdistress, mcalcmove, initrack, settrack imported from mon.js
// makemon imported from makemon.js
// NOTE: differs from canonical cmd.js — wraps rhack with _inRhack flag.
// _rhackScreenIdx records the screen index before command execution.
// Menu captures during rhack replace this screen rather than pushing
// a new one (C captures at the menu's getch, not moveloop's getch).
// domove is in cmd.js
// C ref: do.c:1479 goto_level()
// Core level transition logic. Called inline from command handlers
// (dodown, doup, teleport) matching C's non-deferred call pattern.
// C ref: do.c goto_level(newlevel, at_stairs, falling, portal)
export async function goto_level(newlev, atStairs = true, falling = false, portal = false) {
const g = game;
let u = g.u;
if (!newlev) return;
const levelKey = (lev) => `${lev?.dnum ?? -1}:${lev?.dlevel ?? -1}`;
const oldUz = { ...(u.uz || {}) };
const dist = depth_of_level(newlev) - depth_of_level(oldUz);
const prev_temperature = g.level?.flags?.temperature || 0;
const newdungeon = newlev.dnum !== oldUz.dnum;
const leavingTutorial = newdungeon && in_tutorial(oldUz) && !in_tutorial(newlev);
const atLadder = !!stairway_at(u?.ux, u?.uy)?.isladder;
// C ref: do.c:1578-1581 — prevent descending past quest start
// unless the quest leader has given permission.
if (on_level(u.uz, qstart_level()) && !newdungeon && !ok_to_quest()) {
await pline('A mysterious force prevents you from descending.');
return;
}
// C ref: do.c:1583-1584 — same level → do nothing
if (on_level(newlev, u.uz))
return;
// C ref: do.c:1509-1513 — tutorial state transition hooks.
if (newdungeon) {
if (in_tutorial(newlev)) {
await tutorial(true);
} else if (in_tutorial(oldUz)) {
await tutorial(false);
}
// C ref: nhlua.c nhl_gamestate(reststate) can replace player state.
// Refresh local alias so subsequent writes hit current game.u.
u = g.u;
}
if (!g.savedLevels) g.savedLevels = new Map();
if (g.level && Number.isInteger(oldUz.dnum) && Number.isInteger(oldUz.dlevel)) {
g.savedLevels.set(levelKey(oldUz), {
level: g.level,
stairs: g.stairs ?? null,
moves: g.moves ?? 0,
// C ref: save.c save_track — utrack is written into the
// level save file, then cleared from memory. On re-entry
// getlev()/rest_track() reads it back from the level file.
utrack: g.utrack ? g.utrack.map(t => ({ x: t?.x ?? 0, y: t?.y ?? 0 })) : null,
utpnt: g.utpnt ?? 0,
utcnt: g.utcnt ?? 0,
});
}
// C ref: do.c:1649 — at level leave, savelev() runs with mode
// (WRITING|FREEING); release_data(nhfp) is true so save_track()
// follows the write with initrack(). Clearing in-memory utrack
// here matches that behavior — the saved copy is restored later
// when getlev() is called for the destination level (if it has
// a save file).
initrack();
const savedDest = g.savedLevels.get(levelKey(newlev)) || null;
const isNewLevel = !savedDest;
// C ref: do.c:1718-1720 — suppress flush_screen during level transition
await flush_screen(-1); // toggle delay ON
// C ref: do.c:1618-1621 — pre-departure state cleanup
// reset_utrap(FALSE) → set_utrap(0,0) → float_vs_flight() → SET_BOTL
setBotl('float_vs_flight');
// C: fill_pit(u.ux, u.uy) — not yet ported
// C: set_ustuck(NULL) → SET_BOTL
setBotl('set_ustuck');
// C ref: do.c:1623-1624 — keepdogs before leaving
await keepdogs_impl(false);
// C ref: do.c:1626-1631 — clear vision before saving/leaving old level.
// This avoids stale previous-level visibility influencing next-level redraw.
vision_recalc(2);
// Emit mapdump for leaving level
const oldDnum = u.uz.dnum;
const oldDlevel = u.uz.dlevel;
pushRngLogEntry(`^mapdump[leave_d${oldDnum}l${oldDlevel}_m${g.moves ?? 0}]`);
// Update hero level
u.uz0 = { ...u.uz };
u.uz = { dnum: newlev.dnum, dlevel: newlev.dlevel };
// C ref: do.c:1692-1699 goto_level() — track per-dungeon deepest
// (or highest, for builds-up branches) level reached.
{
const dng = g.dungeons?.[u.uz.dnum];
if (dng) {
const entryLev = dng.entry_lev ?? 1;
const buildsUp = entryLev > 1;
if (!buildsUp) {
if ((u.uz.dlevel ?? 0) > (dng.dunlev_ureached ?? 0))
dng.dunlev_ureached = u.uz.dlevel;
} else if (!dng.dunlev_ureached || (u.uz.dlevel ?? 0) < dng.dunlev_ureached) {
dng.dunlev_ureached = u.uz.dlevel;
}
}
}
g.updest = { lx: 0, ly: 0, hx: 0, hy: 0, nlx: 0, nly: 0, nhx: 0, nhy: 0 };
g.dndest = { lx: 0, ly: 0, hx: 0, hy: 0, nlx: 0, nly: 0, nhx: 0, nhy: 0 };
// Create new level — clear per-level display state
g._terrain_memory = {};
if (savedDest) {
g.level = savedDest.level;
g.stairs = savedDest.stairs ?? null;
// C ref: restore.c:947-972 rest_stairs() reads stairs in chain order
// and rebuilds with stairway_add(), which prepends and reverses chain.
{
let prev = null;
let cur = g.stairs;
while (cur) {
const nxt = cur.next || null;
cur.next = prev;
prev = cur;
cur = nxt;
}
g.stairs = prev;
}
// Saved-levels are stored as live JS objects instead of serialized
// C savefiles; if the stairway chain gets out-of-sync with map fields,
// reinsert missing canonical downstairs link so restored mapstate
// matches C's rest_stairs/in-map stair topology.
if (g.level?.dnstair
&& !stairway_at(g.level.dnstair.x, g.level.dnstair.y)) {
const dnum = u?.uz?.dnum ?? newlev?.dnum ?? 0;
const dlevel = (u?.uz?.dlevel ?? newlev?.dlevel ?? 1) + 1;
stairway_add(
g.level.dnstair.x,
g.level.dnstair.y,
false,
false,
{ dnum, dlevel }
);
}
// C ref: restore.c getlev() rebuilds ftrap by prepending each restored
// trap, reversing serialized order. Normalize saved-level trap array to
// that restored-chain orientation.
if (Array.isArray(g.level?.traps) && g.level.traps.length > 1) {
g.level.traps = [...g.level.traps].reverse();
}
// C ref: restore.c getlev() restores floor object chains by
// rebuilding fobj and calling place_object() for floor objects.
// JS keeps saved levels as live objects; replay placement here to
// preserve C-ordered ^place ownership on level restore.
if (Array.isArray(g.level?.objects) && g.level.objects.length > 0) {
const restoredFloor = [...g.level.objects];
g.level.objects = [];
for (const otmp of restoredFloor) {
otmp.nobj = null;
otmp.nexthere = null;
place_object(otmp, otmp.ox, otmp.oy);
}
}
// C ref: restore.c:1204-1212 getlev — process monsters on restored level.
// Monsters that can hide get rnd(10) consumed for re-hiding check.
// mon_catchup_elapsed_time and restore_cham are not yet ported;
// the rnd(10) consumption is the RNG-critical part.
const elapsed = (g.moves || 0) - (savedDest.moves || 0);
if (elapsed > 0) {
for (const mtmp of (g.level.monsters || [])) {
if (mtmp.dead) continue;
await mon_catchup_elapsed_time(mtmp, elapsed);
// C ref: restore.c:1212 — hide_monst for elapsed time
if (elapsed > rnd(10)) {
hide_monst(mtmp);
}
}
}
} else {
g.level = new GameMap();
g.level.nroom = 0;
g.level.rooms = [];
// mklev() — generate level (includes getbones rn2(3))
await mklev();
}
// C ref: do.c:1729 goto_level() — normalize room/corridor glyph state
// for dark-room display semantics immediately after level load/gen.
reglyph_darkroom();
// C ref: do.c:1746-1773 — place hero at arrival location
// C uses stairway_find_from to find the stair connecting to the
// previous level, then places hero there. For new dungeons without
// a direct stair connection, uses u_on_sstairs or u_on_rndspot.
// C ref: do.c goto_level() transit direction is depth-based, not dlevel-based.
// Cross-dungeon transitions can have lower dlevel but still be deeper overall.
// C ref: do.c:1489 — up is determined by total depth, not dlevel.
// depth() accounts for the dungeon's depth_start offset.
let goingUp = depth_of_level(newlev) < depth_of_level({ dnum: oldDnum, dlevel: oldDlevel });
if (leavingTutorial) goingUp = false;
let stairTransitMsgDone = false;
{
if (portal && !In_endgame(g.u?.uz)) {
// C ref: do.c:1736-1759 — portal arrivals place hero onto the
// corresponding MAGIC_PORTAL trap on destination level.
let ttrap = null;
for (let t = g.ftrap; t; t = t.ntrap) {
if (t.ttyp === MAGIC_PORTAL) {
ttrap = t;
break;
}
}
if (!ttrap) {
await u_on_rndspot(0);
} else {
seetrap(ttrap);
u_on_newpos(ttrap.tx, ttrap.ty);
}
} else if (portal) {
await u_on_rndspot(0);
} else if (atStairs && !falling) {
const stway = stairway_find_from
? stairway_find_from({ dnum: oldDnum, dlevel: oldDlevel }, atLadder)
: null;
if (stway) {
// Found stair connecting to previous level
g.u.ux = stway.sx;
g.u.uy = stway.sy;
// C ref: do.c:1765,1783 — mark stair as traversed
stway.u_traversed = true;
} else if (newdungeon) {
// New dungeon, no direct stair — use special stairs
if (goingUp) {
if (u_on_sstairs) await u_on_sstairs(1);
else await u_on_rndspot(0);
} else {
if (u_on_sstairs) await u_on_sstairs(0);
else await u_on_rndspot(0);
}
} else if (goingUp) {
// C ref: going up arrives on the destination level's downstairs.
if (u_on_dnstairs) await u_on_dnstairs();
else await u_on_upstairs();
} else {
// C ref: going down arrives on the destination level's upstairs.
await u_on_upstairs();
}
// C ref: do.c:1794-1810 — overloaded/fumbling descent fall branch.
if (!goingUp) {
if (!(g.u?.dz)) {
// stayed on same level: no transit effects
} else if ((near_capacity() > UNENCUMBERED) || Punished() || Fumbling()) {
await You('fall down the stairs.');
stairTransitMsgDone = true;
if (Punished()) {
await drag_down();
if (!welded(g.u?.uball)) {
await ballrelease(false);
}
}
if (g.u?.usteed) {
await dismount_steed(DISMOUNT_FELL);
} else {
await losehp(Maybe_Half_Phys(rnd(3)),
'tumbling down a flight of stairs', KILLED_BY);
}
await selftouch('Falling, you');
}
}
} else {
// C ref: do.c trap door / level_tele / endgame transit path.
await u_on_rndspot(goingUp ? 1 : 0);
}
}
// Rebuild fmon linked list and monMap from level's monsters.
// C ref: restore.c getlev() rebuilds level.monsters[x][y] spatial
// table during level restore. JS must do the same — the saved monMap
// may have stale entries from monsters that were removed by keepdogs
// or that moved positions. Rebuild it fresh from the monster array.
g.fmon = null;
const newMonsters = g.level?.monsters || [];
// Clear the monMap before rebuilding
if (g.level?.monMap) {
for (let x = 0; x < COLNO; x++) {
if (g.level.monMap[x]) g.level.monMap[x].fill(null);
}
}
for (let i = newMonsters.length - 1; i >= 0; i--) {
const m = newMonsters[i];
m.nmon = g.fmon;
g.fmon = m;
// Rebuild monMap entry for live, on-map monsters
if (!m.dead && (m.mstate ?? 0) === 0 && isok(m.mx, m.my)) {
g.level.setMonAt(m.mx, m.my, m);
}
}
// C ref: do.c:1760-1816 — transit messaging is part of the
// at_stairs branch only (not portal/in-endgame arrivals).
if (!stairTransitMsgDone && atStairs && !portal && !In_endgame(g.u?.uz) && g.flags?.verbose) {
if (goingUp) {
await You('climb up the stairs.');
} else if (g.u?.dz) {
await pline('You descend the stairs.');
}
}
// C ref: do.c:1816 — losedogs() restores migrated pets
await losedogs_impl();
// C ref: do.c:1823 — run level-specific timers on arrival
await run_timers();
// C ref: do.c:1827-1828 — resolve hero/monster collision after pet arrival
{
const mtmp = m_at(g.u.ux, g.u.uy);
if (mtmp) await u_collide_m(mtmp);
}
// C ref: do.c:1711 — getlev() on re-entry calls rest_track() which
// reads the destination level's previously-saved utrack. For a
// fresh level (mklev path at do.c:1699), rest_track is not called
// so the track stays empty (cleared at leave above).
if (savedDest && savedDest.utrack) {
g.utrack = savedDest.utrack.map(t => ({ x: t.x, y: t.y }));
g.utpnt = savedDest.utpnt;
g.utcnt = savedDest.utcnt;
}
// else: utrack is already empty from initrack() at leave-old-level.
// C ref: do.c — initial movement of bubbles just before vision_recalc.
// This runs inside goto_level, NOT in the moveloop per-turn block, because
// the level teleport command has context.move=0 (no ECMD_TIME).
if (Is_waterlevel(g.u?.uz) || Is_airlevel(g.u?.uz))
await movebubbles();
// C ref: do.c:1718-1719 — suppress moveloop auto-recalc after level transition
g.vision_full_recalc = 0;
// C ref: do.c:1837-1841 — vision_reset, docrt (which calls cls), flush_screen
vision_reset();
// C ref: docrt → cls() → clear_nhwindow(MAP) → term_clear_screen
// Uses docrt_cls which includes the MAP→BASE fallthrough to term_clear_screen
await docrt_cls();
// C ref: docrt_flags line 1758 — sets botlx after cls
setBotlx('docrt_flags');
// Redraw map cells after cls() so the immediate post-transition frame
// includes the new level map behind arrival messages.
// Clear _menuActive so docrt takes the full path (no menu is active
// at this point — we're in goto_level's screen reset).
g._menuActive = false;
await docrt(false, true);
await flush_screen(-1);
// C ref: do.c:1854-1855 — deliver deferred level-teleport arrival text
// immediately after the screen reset, before later arrival messages.
if (g.dfr_post_msg) {
await maybe_lvltport_feedback();
}
// C ref: do.c:1871 — special-level custom arrival message.
await deliver_splev_message();
// C ref: do.c:1874-1890 — Gehennom/Valley arrival messaging and state.
{
const prevDun = g.dungeons?.[oldUz?.dnum];
const curDun = g.dungeons?.[g.u?.uz?.dnum];
const wasHell = !!prevDun?.flags?.hellish;
const isHell = !!curDun?.flags?.hellish;
const isValley = on_level(g.u?.uz, g.valley_level);
if (!wasHell && isHell) {
if (isValley) {
await You('arrive at the Valley of the Dead...');
await pline('The odor of burnt flesh and decay pervades the air.');
if (!Deaf()) await You_hear('groans and moans everywhere.');
}
record_achievement(ACH_HELL);
}
if (isHell && !isValley) {
if (!g.u.uevent) g.u.uevent = {};
g.u.uevent.gehennom_entered = 1;
}
}
// C ref: do.c:1882-1893 — endgame arrival events.
if (In_endgame(g.u?.uz)) {
if (newdungeon)
record_achievement(ACH_ENDG);
const isAstralNew = isNewLevel && on_level(g.u?.uz, g.astral_level);
if (isAstralNew) {
// C ref: do.c:1886 — final_level(): guardian angel + player monsters
await final_level();
record_achievement(ACH_ASTR);
} else if (newdungeon && g.u?.uhave?.amulet) {
await resurrect();
}
} else if (g.u?.uz?.dnum === g.quest_dnum) {
// C ref: do.c:1905-1906 — quest level entry messages.
await onquest();
}
// C ref: do.c:1926-1928 goto_level() — new rogue-level entry message.
if (isNewLevel && on_level(g.u?.uz, g.rogue_level)) {
await You('enter what seems to be an older, more primitive world.');
}
// C ref: do.c:1975-1981 — tourist XP for reaching a new level
if (Role_if(PM_TOURIST)) {
more_experienced(level_difficulty(), 0);
await newexplevel();
}
// C ref: do.c:1931-1945 — quest-leader "quest portal" message
// when entering the quest branch level in the main dungeon.
if ((oldUz?.dnum !== g.quest_dnum)
&& at_dgn_entrance(g.quest_dnum)
&& !(g.u?.uevent?.qcompleted
|| g.u?.uevent?.qexpelled
|| g.quest_status?.leader_is_dead)) {
if (!g.u.uevent) g.u.uevent = {};
if (!g.u.uevent.qcalled) {
g.u.uevent.qcalled = 1;
await quest_com_pager('quest_portal');
} else {
await quest_com_pager(Role_if(PM_ROGUE) ? 'quest_portal_demand' : 'quest_portal_again');
}
}
// C ref: do.c:1984+ and do.c:2015+ — level arrival temperature/smoke feedback.
await temperature_change_msg(prev_temperature);
// C ref: do.c:2011 — assign_level(&u.uz0, &u.uz); reset "previous level"
// marker after a completed transition so portal re-entry checks behave
// like C on subsequent turns.
g.u.uz0 = { ...g.u.uz };
// C harness patch ref: do.c emits mapstate dump immediately after
// assign_level(&u.uz0, &u.uz) in goto_level(), not later from cmd tail.
// C's hero_seq reflects the current turn at dump time. Ensure JS matches
// by syncing hero_seq to moves before emitting (C sets hero_seq in the
// moveloop's context.move block which may have already run this turn).
if (g.hero_seq < (g.moves << 3)) g.hero_seq = g.moves << 3;
emitTurnMapstate(g, pushRngLogEntry, 'after_goto_level');
// C ref: do.c:1995 — give room entrance message, if any.
// This handles quest leader dialogue, temple greetings, etc.
// Messages and --More-- keys are consumed here, inside goto_level,
// matching C's behavior where check_special_room fires before
// the moveloop's next iteration.
await check_special_room(false);
// C ref: do.c:2007-2013 — falling damage after assign_level/mapstate.
if (falling) {
let dmg = c_d(Math.max(dist, 1), 6);
dmg = Maybe_Half_Phys(dmg);
await losehp(dmg, 'falling down a mine shaft', KILLED_BY);
}
// C ref: do.c:2015 — arrival autopickup/decor pass.
await pickup(1);
}
// C ref: do.c:2075 deferred_goto()
// For level transitions that were scheduled (traps, portals) rather
// than called inline. Delegates to goto_level.
export async function deferred_goto() {
const g = game;
const u = g.u;
if (!u || !u.utotype) return;
const newlev = u.utolev;
const oldlev = { ...(u.uz || {}) };
const typmask = u.utotype; // C saves this because goto_level clears u.utotype
const sameLevel = !!newlev
&& newlev.dnum === oldlev.dnum
&& newlev.dlevel === oldlev.dlevel;
if (newlev && !sameLevel) {
if (g.dfr_pre_msg) {
await pline(g.dfr_pre_msg);
}
await goto_level(
newlev,
!!(typmask & UTOTYPE_ATSTAIRS),
!!(typmask & UTOTYPE_FALLING),
!!(typmask & UTOTYPE_PORTAL)
);
// UTOTYPE_RMPORTAL trap removal not yet ported.
if (g.dfr_post_msg
&& (u.uz?.dnum !== oldlev.dnum || u.uz?.dlevel !== oldlev.dlevel)) {
await pline(g.dfr_post_msg);
}
}
void typmask; // keep C shape while UTOTYPE_* consumers are ported
u.utotype = 0; // caller keys off this
g.dfr_pre_msg = null;
g.dfr_post_msg = null;
}
// Calendar functions imported from calendar.js above.
// near_capacity imported from pickup.js
// C ref: attrib.c:410-418 change_luck()
function depth_of_level(lev) {
if (!lev) return 0;
const dnum = lev.dnum;
const dlevel = lev.dlevel;
const dungeon = game?.dungeons?.[dnum];
if (!dungeon || !dlevel) return 0;
return (dungeon.depth_start || 0) + dlevel - 1;
}
function depth_uz() { return depth_of_level(game?.u?.uz) || 1; }
function depth_stronghold() { return depth_of_level(game?.stronghold_level); }
function level_monsters() { return game?.level?.monsters || []; }
function in_tutorial(uz) {
return Number.isInteger(game.tutorial_dnum) && uz?.dnum === game.tutorial_dnum;
}
function at_dgn_entrance(dnum) {
const uz = game.u?.uz;
if (!uz || dnum == null) return false;
const branches = game.branches || [];
for (const br of branches) {
if (br?.end2?.dnum !== dnum) continue;
if (on_level(uz, br.end1)) return true;
}
return false;
}
// Fast, Very_fast: imported from macros.js
function current_dex() { return ACURR(A_DEX); }
// pline, You imported from display.js
// nh_timeout, run_regions, do_storms imported from timeout.js
// NOTE: differs from canonical vault.js — empty stub here, NEW import edge.
// NOTE: differs from canonical wizard.js — empty stub here (canonical returns bool), NEW import edge.
// C ref: wizard.c:61 amulet() — Amulet effects each turn
async function amulet() {
const g = game;
const u = g.u;
const AMULET_OF_YENDOR = 310; // from objects.js
const MAGIC_PORTAL_TRAP = 21; // MAGIC_PORTAL trap type
const amu = (u.uamul?.otyp === AMULET_OF_YENDOR) ? u.uamul
: (u.uwep?.otyp === AMULET_OF_YENDOR) ? u.uwep : null;
if (amu && !rn2(15)) {
for (const trap of (g.level?.traps || [])) {
if (trap.ttyp === MAGIC_PORTAL_TRAP) {
const du = (trap.tx - u.ux) * (trap.tx - u.ux) + (trap.ty - u.uy) * (trap.ty - u.uy);
if (du <= 9)
await pline(`${amu === u.uamul ? 'Your amulet' : 'The amulet'} feels hot!`);
else if (du <= 64)
await pline(`${amu === u.uamul ? 'Your amulet' : 'The amulet'} feels very warm.`);
else if (du <= 144)
await pline(`${amu === u.uamul ? 'Your amulet' : 'The amulet'} feels warm.`);
break;
}
}
}
if (!g.context?.no_of_wizards) return;
for (let mtmp = g.fmon; mtmp; mtmp = mtmp.nmon) {
if (mtmp.dead) continue;
if (mtmp.iswiz && mtmp.msleeping && !rn2(40)) {
mtmp.msleeping = 0;
if (!m_next2u(mtmp))
await You('get the creepy feeling that somebody noticed your taking the Amulet.');
return;
}
}
}
// C ref: do.c:2042 final_level — Astral Plane arrival
async function final_level() {
const g = game;
// C ref: iter_mons(reset_hostility) — reset monster hostility on Astral
const { reset_hostility } = await import('./priest.js');
for (let m = g.fmon; m; m = m.nmon) {
if (!m.dead) reset_hostility(m);
}
// C ref: create_mplayers(rn1(4, 3), TRUE)
const { create_mplayers } = await import('./mplayer.js');
await create_mplayers(rn1(4, 3), true);
// C ref: gain_guardian_angel()
const { gain_guardian_angel } = await import('./minion.js');
await gain_guardian_angel();
}
// C ref: wizard.c:715 resurrect
async function resurrect() {
const g = game;
let mtmp = null;
let verb;
if (!(g.context?.no_of_wizards ?? 0)) {
// make a new Wizard
verb = 'kill';
mtmp = await makemon(mons[PM_WIZARD_OF_YENDOR], g.u?.ux ?? 0, g.u?.uy ?? 0, MM_NOWAIT);
if (mtmp) {
mtmp.mrevived = 1;
}
}
// C ref: wizard.c:729-758 — migrating wizard path (not yet ported)
if (mtmp) {
mtmp.mstrategy &= ~(0x00000f00); // STRAT_WAITMASK
mtmp.mtame = 0;
mtmp.mpeaceful = 0;
set_malign(mtmp);
if (!Deaf()) {
await pline('A voice booms out...');
await verbalize(`So thou thought thou couldst ${verb} me, fool.`);
}
}
}
// C ref: wizard.c:61 intervene() — Wizard interventions when demigod
async function intervene() {
const g = game;
const isAstral = on_level(g.u?.uz, g.astral_level);
const which = isAstral ? rnd(4) : rn2(6);
// C ref: wizard.c:68-83 — cases 0 and 5 don't apply on Astral
switch (which) {
case 0:
case 1:
await You_feel('vaguely nervous.');
break;
case 2:
if (!Blind()) {
const { hcolor } = await import('./do_name.js');
await You(`notice a ${hcolor('black')} glow surrounding you.`);
}
{ const { rndcurse } = await import('./sit.js'); await rndcurse(); }
break;
case 3:
{ const { aggravate } = await import('./mon.js'); aggravate(); }
break;
case 4:
{ const { nasty } = await import('./wizard.js'); nasty(null); }
break;
case 5:
await resurrect();
break;
}
}
// C ref: hack.c runmode_delay_output()
async function runmode_delay_output() {
const g = game;
pushRngLogEntry('>runmode_delay_output');
if ((g.context?.run || g.multi) && g.flags?.runmode !== RUN_TPORT) {
if (g.flags.runmode !== RUN_LEAP || !(g.moves % 7)) {
g.disp.time_botl = !!g.flags.time;
await curs_on_u();
await delay_output();
if (g.flags.runmode === RUN_CRAWL) {
await delay_output();
await delay_output();
await delay_output();
await delay_output();
}
}
}
pushRngLogEntry('<runmode_delay_output');
}
async function gethungry() {
// C ref: eat.c gethungry() — full hunger processing
return gethungry_impl();
}
// C ref: hack.c:3015 overexert_hp()
async function overexert_hp() {
const u = game.u;
const hpRef = Upolyd() ? 'mh' : 'uhp';
const hp = u?.[hpRef] ?? 0;
if (hp > 1) {
u[hpRef] = hp - 1;
setBotl('overexert_hp');
} else {
await You('pass out from exertion!');
exercise(A_CON, false);
await fall_asleep(-10, false);
}
}
// Regeneration stubs (consume no RNG until fully ported)
// C ref: allmain.c:627 regen_hp()
// RNG: rn2(100) for HP regen check when HP < max
async function regen_hp(wtcap) {
const g = game;
const u = g.u;
if (!u) return;
const MOD_ENCUMBER = 2;
const encumbrance_ok = (wtcap < MOD_ENCUMBER || !u.umoved);
// C ref: allmain.c:749-766 — non-polymorphed HP regen
// U_CAN_REGEN: Regeneration intrinsic, or sleeping with Sleepy
// C ref: allmain.c:692 U_CAN_REGEN = Regeneration || (Sleepy && u.usleep)
const REGENERATION = 22; // from const.js
const SLEEPY = 68; // from const.js
const canRegen = !!(u.uprops?.[REGENERATION]?.intrinsic
|| u.uprops?.[REGENERATION]?.extrinsic)
|| !!((u.uprops?.[SLEEPY]?.intrinsic || u.uprops?.[SLEEPY]?.extrinsic) && u.usleep);
let reachedFull = false;
// C ref: allmain.c:702-721 — polymorphed hero HP handling
if (Upolyd()) {
if (u.mh < 1) {
const { rehumanize } = await import('./polyself.js');
await rehumanize();
} else if (g.youmonst?.data?.mlet === 57 /*S_EEL*/
&& !([16/*POOL*/, 17/*MOAT*/, 18/*WATER*/].includes(g.level?.at(u.ux, u.uy)?.typ))
&& !Is_waterlevel(g.u?.uz)
&& !Breathless()) {
// Eel out of water loses HP
if (u.mh > 1 && !canRegen && rn2(u.mh) > rn2(8)
&& (!Half_physical_damage() || !((g.moves || 0) % 2))) {
u.mh -= 1;
setBotl('regen_hp_eel');
}
} else if (u.mh < u.mhmax) {
if (canRegen || (encumbrance_ok && !((g.moves || 0) % 20))) {
u.mh = Math.min(u.mh + 1, u.mhmax);
setBotl('regen_hp_poly');
}
}
reachedFull = (u.mh === u.mhmax);
if (reachedFull) await interrupt_multi('You are in full health.');
return;
}
if (u.uhp < u.uhpmax && (encumbrance_ok || canRegen)) {
let heal = ((u.ulevel + ACURR(A_CON)) > rn2(100)) ? 1 : 0;
if (canRegen) heal += 1;
// C ref: allmain.c:734 — sleeping with Sleepy property heals faster
if ((u.uprops?.[SLEEPY]?.intrinsic || u.uprops?.[SLEEPY]?.extrinsic) && u.usleep)
heal++;
if (heal) {
u.uhp += heal;
if (u.uhp > u.uhpmax) u.uhp = u.uhpmax;
setBotl('regen_hp');
reachedFull = (u.uhp === u.uhpmax);
}
}
if (reachedFull) {
await interrupt_multi('You are in full health.');
}
}
// C ref: allmain.c:691 regen_pw — energy regeneration
async function regen_pw(wtcap) {
const g = game;
const u = g.u;
if (!u || u.uen >= u.uenmax) return;
const MOD_ENCUMBER = 2;
const interval = Math.trunc((30 + 8 - u.ulevel) * (Role_if(PM_WIZARD) ? 3 : 4) / 6);
const energyRegen = !!(u.uprops?.[ENERGY_REGENERATION]?.intrinsic
|| u.uprops?.[ENERGY_REGENERATION]?.extrinsic);
if ((wtcap < MOD_ENCUMBER && interval > 0 && !(g.moves % interval))
|| energyRegen) {
const wis = u.acurr?.a?.[A_WIS] ?? 10;
const intel = u.acurr?.a?.[A_INT] ?? 10;
let upper = Math.trunc((wis + intel) / 15) + 1;
// C: EMagical_breathing bonus (simplified: skip)
u.uen += rn1(upper, 1);
if (u.uen > u.uenmax) u.uen = u.uenmax;
setBotl('regen_pw');
if (u.uen === u.uenmax) {
await interrupt_multi('You feel full of energy.');
}
}
}
// u_wipe_engr imported from engrave.js (removed local stub)
// C ref: options.c ask_do_tutorial()
// Displays a menu with "Yes, do a tutorial" / "No, just start play" options.
// On re-prompt (after invalid input), adds "(Please choose 'y' or 'n'.)".
async function ask_do_tutorial() {
// C ref: options.c ask_do_tutorial()
// If tutorial option was set in config, obey it without asking.
if (game.tutorial_set_in_config) {
return game.flags?.tutorial ? 'y'.charCodeAt(0) : 'n'.charCodeAt(0);
}
let pass = 0;
let result;
do {
const win = create_nhwindow_menu();
start_menu(win);
add_menu(win, 'y', 'y', 0, 0, NO_COLOR, 'Yes, do a tutorial', 0);
add_menu(win, 'n', 'n', 0, 0, NO_COLOR, 'No, just start play', 0);
add_menu_str(win, '');
add_menu_str(win, 'Put "OPTIONS=!tutorial" in .nethackrc to skip this query.');
if (pass > 0) {
add_menu_str(win, "(Please choose 'y' or 'n'.)");
}
end_menu(win, 'Do you want a tutorial?');
result = await select_menu(win, 1); // PICK_ONE
destroy_nhwindow_menu(win);
pass++;
} while (result.count === 0);
if (result.count > 0) {
return result.items[0].identifier === 'y' ? 'y'.charCodeAt(0) : 'n'.charCodeAt(0);
}
// ESC (count === -1) → no tutorial
return 'n'.charCodeAt(0);
}
// Tutorial prompt — C ref: options.c ask_do_tutorial()
// Uses a full NHW_MENU window, not a simple yn prompt.
export async function maybe_do_tutorial() {
const sp = find_level('tut-1');
if (!sp) return;
const answer = await ask_do_tutorial();
if (String.fromCharCode(answer).toLowerCase() === 'y') {
const display = game?.nhDisplay || null;
await tutorial(true);
// C ref: do.c:2101 deferred_goto → goto_level → arrive()
// C's arrive() calls pline BEFORE level generation events.
// The pline triggers flush_screen → bot, then state management.
await pline('Entering the tutorial.');
// C ref: arrive() calls float_vs_flight() and set_ustuck()
// which each SET_BOTL. No intermediate setBotl.
setBotl('float_vs_flight');
setBotl('set_ustuck');
// C ref: do.c goto_level() → mklev() → makelevel()
// C: getbones() — rn2(3), returns early (no bones)
rn2(3);
// C: nhl_init() → nhlib.lua → align[] shuffle
l_nhcore_init(); // rn2(3) + rn2(2)
// C: splev_initlev() rn2(2) for solidfill lit is now handled
// inside level_init() when the level script calls des.level_init().
// C: goto_level saves current level, emits mapdump event keyed by move count.
pushRngLogEntry(`^mapdump[leave_d0l1_m${game.moves ?? 0}]`);
// C ref: do.c:1608-1616 goto_level() — preserve departing level state
// so tutorial exit can restore the exact prior level.
if (!game.savedLevels) game.savedLevels = new Map();
if (game.level
&& Number.isInteger(game.u?.uz?.dnum)
&& Number.isInteger(game.u?.uz?.dlevel)) {
const key = `${game.u.uz.dnum}:${game.u.uz.dlevel}`;
game.savedLevels.set(key, {
level: game.level,
stairs: game.stairs ?? null,
moves: game.moves ?? 0,
});
}
game.u.ucamefrom = { ...game.u.uz };
game.u.uz0 = { ...game.u.uz };
game.u.uz = { dnum: sp.dlevel.dnum, dlevel: sp.dlevel.dlevel };
game.u.utolev = { ...game.u.uz };
game.updest = { lx: 0, ly: 0, hx: 0, hy: 0, nlx: 0, nly: 0, nhx: 0, nhy: 0 };
game.dndest = { lx: 0, ly: 0, hx: 0, hy: 0, nlx: 0, nly: 0, nhx: 0, nhy: 0 };
// C: clear_level_structures creates a fresh GameMap
// Clear per-level display memory (JS uses a global dict, C uses per-tile seenv)
game._terrain_memory = {};
game.level = new GameMap();
game.level.nroom = 0;
game.level.rooms = [];
// C ref: mklev.c:init_level() sets svl.level.flags.hero_memory = 1.
// Tutorial generation bypasses mklev(), so set the same invariant here.
game.level.flags.hero_memory = true;
game.in_mklev = true; // C: set during mklev for mkobj_erosions etc.
// C: s_level flags.align is computed from dungeon flags bitmask.
// Tutorial dungeon has flags = MAZELIKE|UNCONNECTED = 0x04|0x10.
// C's init_level: flags.align = ((dungeon_flags & 0x70) >> 4) = 1 = AM_CHAOTIC.
// The UNCONNECTED flag (0x10) overlaps D_ALIGN_CHAOTIC (AM_CHAOTIC<<4).
// This is a C data format quirk we must reproduce for bit-exact parity.
game.special_level_align = 1; // AM_CHAOTIC
// Run the tut-1 level script
try {
const tut1 = await import('./levels/tut-1.js'); // lazy // lazy
if (typeof tut1.generate === 'function') {
await tut1.generate();
}
} catch (e) {
// Don't silently swallow tutorial errors.
throw e;
}
// Tutorial level generation path bypasses mklev(); run the same
// topology finalization steps that establish rm.flags aliases
// (bound_digging + wall_info state) without invoking mineralize RNG.
level_finalize_topology({ skipMineralize: true });
// C ref: mklev() runs water_has_kelp() checks during level-finalize
// before arrival. Keep this explicit pass for tutorial parity.
mineralize_kelp(-1, -1, false);
// C: goto_level() arrival on tutorial entry uses await u_on_rndspot(0),
// which in turn uses the level's teleport-region destination area.
await u_on_rndspot(0);
if (game?.dndest?.lx > 0 && game?.dndest?.ly >= 0
&& game?.dndest?.lx === game?.dndest?.hx
&& game?.dndest?.ly === game?.dndest?.hy) {
u_on_newpos(game.dndest.lx, game.dndest.ly);
}
// C-shaped level transition invariant: fmon tracks only current
// level monsters. Reset stale old-level chain before continuing.
game.fmon = null;
const tutorialMonsters = game.level?.monsters || [];
for (let i = tutorialMonsters.length - 1; i >= 0; i--) {
const m = tutorialMonsters[i];
m.nmon = game.fmon;
game.fmon = m;
}
// C: mapdump event for the completed tutorial level
{
const serial = ((game.mapdump_serial ?? 0) + 1);
game.mapdump_serial = serial;
pushRngLogEntry(`^mapdump[d8l1_${String(serial).padStart(3, '0')}]`);
}
// C ref: goto_level → vision_reset + vision_recalc for new level.
// Terrain memory is populated incrementally as the player explores.
vision_reset();
vision_recalc();
// C ref: after level gen, the "Entering" message is still pending
// (toplin=2). C routes this through tty_display_nhwindow(WIN_MESSAGE),
// which owns the more() -> tty_clear_nhwindow -> display lifecycle,
// then cls() clears the screen for the new level before the engraving
// messages.
game._menuActive = false;
if (display) {
// C ref: docrt_flags → cls → display_nhwindow(WIN_MESSAGE) handles
// more() internally when toplin=NEED_MORE. cls() then calls
// clear_nhwindow(WIN_MAP) → term_clear_screen → erase_tty_screen
// which iterates all active windows. No separate clear calls needed.
// docrt() internally emits setBotlx('docrt_flags') after newsym loop.
await cls();
game._terrain_memory = {};
// C ref: docrt_flags() runs newsym loop + SET_BOTLX
await docrt(true);
await flush_screen();
render_screen_output_to_display(display);
// C keeps hero_seq tied to moves (moves << 3).
game.hero_seq = (game.moves ?? 0) << 3;
// C tutorial goto-level path emits mapstate dump in the arrival
// frame before the first engraving plines.
emitTurnMapstate(game, pushRngLogEntry, 'after_goto_level');
// C ref: read_engr_at — two plines. The second pline's
// update_topl sees toplin=NEED_MORE from the first and
// calls more() internally.
await pline('Something is engraved here on the floor.');
await pline('You read: "Move around with h j k l".');
// C ref: allmain.c:652 — docrt() after deferred_goto.
// C's docrt internally calls cls() which handles the pending
// more() for the second engraving message.
// moveloop_core handles find_ac + bot on first iteration —
// do NOT call find_ac/flush_screen here (C doesn't).
game._terrain_memory = {};
await cls();
await docrt(true);
}
// C ref: do.c goto_level() finalization resets uz0 to current level
// after arrival processing is complete.
game.u.uz0 = { ...game.u.uz };
}
}
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