Press n or j to go to the next uncovered block, b, p or k for the previous block.
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113067x 113067x 99003x 113067x 130892x 130892x 130892x 116828x 130892x 59x 59x 59x 59x 59x 59x 59x 59x 59x 59x 113020x 113020x 113020x 113020x 113020x 102384x 102384x 102384x 102384x 106737x 113020x 113020x 113020x 113020x 44567x 40214x 102384x 73x 22x 22x 22x 22x 22x 22x 22x 22x 22x 22x 22x 22x 22x 14449x 14449x 14449x 14449x 14449x 14449x 14449x 2863x 2863x 22x 6489x 6489x 6489x 6489x 6489x 6489x 6489x 348x 6489x 1x 6141x 248x 248x 6489x 73x 107x 107x 107x 107x 24x 24x 24x 24x 24x 24x 24x 107x 10x 10x 10x 10x 83x 64x 64x 64x 73x 9x 9x 9x 9x 107x 107x 64x 64x 64x 43x 100x 43x 107x 73x 73x 73x 73x 73x 73x 73x 73x 73x 73x 73x 73x 73x 72x 72x 72x | // sp_lev.js — Special level engine (port of sp_lev.c)
// Implements the des.* API functions used by themed rooms and special levels.
//
// Core functions:
// des_map() — place a map fragment on the level
// des_region() — create a room region
// splev_chr2typ() — map character to terrain type
//
// C ref: sp_lev.c (~6000 lines). This is a minimal port covering
// the functions needed for themed room map placement.
import { game } from './gstate.js';
import { rn1, rn2, rnd, rne, c_d, pushRngLogEntry, rn2_raw } from './rng.js';
import {
mons, PM_GHOST, PM_MINOTAUR, PM_GIANT_SPIDER, PM_ARCHEOLOGIST, PM_WIZARD, PM_DWARF, PM_GNOME, S_EEL, G_UNIQ,
} from './monsters.js';
import { map_background, map_object, map_trap, set_wall_state, tty_display_nhwindow } from './display.js';
import { def_char_to_objclass } from './drawing.js';
import { stairway_add } from './stairs.js';
import { create_drawbridge, is_lava, is_pool } from './dbridge.js';
import { make_grave } from './engrave.js';
import { parseNethackrc, applyOptions } from './options.js';
import { pline } from './pline.js';
import { walkfrom, maze_remove_deadends, place_lregion, rloc_mkmaze } from './mkmaze.js';
import { flood_fill_rm, mkmap } from './mkmap.js';
import { inside_room, somex, somey, somexy } from './mkroom.js';
import { priestini, mk_roamer } from './priest.js';
import { bless, blessorcurse, curse, mkcorpstat, mkgold, mkobj, mkobj_at, mksobj_at, mksobj_core, obfree, obj_extract_self, place_object, remove_object, rndmonnum, rndmonnum_adj, set_corpsenm, sobj_at, weight } from './mkobj.js';
import { mdrop_special_objs, mpickobj } from './steal.js';
import { add_room, create_room, create_subroom, dig_corridor, get_level_extends, makecorridors, mktrap_victim, topologize, wall_cleanup, wallification } from './mklev.js';
import { find_level, induced_align } from './dungeon.js';
import { ARMOR_CLASS, BOULDER, COIN_CLASS, CORPSE, DWARVISH_MATTOCK, EGG, FIGURINE, FOOD_CLASS, GEM_CLASS, MAXOCLASSES, PICK_AXE, POTION_CLASS, RANDOM_CLASS, RIN_TELEPORTATION, RING_CLASS, ROCK_CLASS, SCR_TELEPORTATION, SCROLL_CLASS, SPBOOK_CLASS, STATUE, TIN, TOOL_CLASS, WAN_DIGGING, WAN_TELEPORTATION, WAND_CLASS, WEAPON_CLASS } from './objects.js';
import { oname } from './do_name.js';
import { stackobj } from './invent.js';
import { readobjnam } from './objnam.js';
import { bury_an_obj, Can_dig_down } from './dig.js';
import { delete_contents } from './shk.js';
import { start_timer, stop_timer } from './timeout.js';
import { del_engr, engr_at, make_engr_at } from './engrave.js';
import { enexto_core, goodpos, level_difficulty, makemon, mkclass, apply_init_newcham } from './makemon.js';
import { mk_mplayer } from './mplayer.js';
import { Inhell, In_mines, Is_airlevel, Is_waterlevel, Race_if } from './macros.js';
import { Can_fall_thru } from './dbridge.js';
import {
poly_when_stoned, pm_resists_ston, resists_ston, is_male, is_female, your_race,
is_swimmer, is_amphibious, is_flyer, is_floater, likes_fire, passes_walls, noncorporeal,
is_vampshifter, vampshifted,
name_to_monplus,
} from './mondata.js';
import { t_at, m_at } from './map_access.js';
import { deltrap, maketrap, undestroyable_trap } from './trap.js';
import { depth as dungeonDepth, set_levltyp } from './hacklib.js';
import { extract_from_minvent, m_dowear } from './worn.js';
import { def_monsyms } from './symbols.js';
import { A_CHAOTIC, A_LAWFUL, A_NEUTRAL, A_NONE, ACCESSIBLE, AIR, Align2amask, ALTAR, AM_MASK, AM_SANCTUM, AM_SHRINE, AM_SPLEV_CO, AM_SPLEV_NONCO, AM_SPLEV_RANDOM, Amask2align, ANTHOLE, ANY_LOC, ARMORSHOP, ARROW_TRAP, BARRACKS, BEAR_TRAP, BEEHIVE, BLCORNER, BOOKSHOP, BRCORNER, BURN, CANDLESHOP, CLOUD, COCKNEST, COLNO, CORPSTAT_FEMALE, CORPSTAT_HISTORIC, CORPSTAT_MALE, CORPSTAT_NONE, CORR, COURT, CROSSWALL, D_BROKEN, D_CLOSED, D_ISOPEN, D_LOCKED, D_NODOOR, D_SECRET, D_TRAPPED, DART_TRAP, DB_DIR, DB_EAST, DB_NORTH, DB_SOUTH, DB_WEST, DBWALL, DELPHI, DOOR, DRY, DUST, ENGR_BLOOD, ENGRAVE, F_LOOTED, F_WARNED, FEMALE, FIRE_TRAP, FODDERSHOP, FOODSHOP, FOUNTAIN, G_EXTINCT, G_GONE, GP_AVOID_MONPOS, GP_CHECKSCARY, HOLE, HOT, HWALL, ICE, ICED_MOAT, ICED_POOL, IRONBARS, IS_DOOR, IS_DRAWBRIDGE, IS_FURNITURE, Is_knox_level, Is_rogue_level, is_hole, IS_LAVA, IS_OBSTRUCTED, is_pit, IS_POOL, IS_ROOM, IS_STWALL, IS_TREE, IS_WALL, isok, LA_DOWN, LA_UP, LADDER, LANDMINE, LAVAPOOL, LAVAWALL, LEPREHALL, LEVEL_TELEP, LR_BRANCH, LR_DOWNSTAIR, LR_DOWNTELE, LR_MONGEN, LR_PORTAL, LR_TELE, LR_UPSTAIR, LR_UPTELE, MAGIC_PORTAL, MAGIC_TRAP, MALE, MARK, MATCH_WALL, MAX_NESTED_ROOMS, MAXNROFROOMS, MKTRAP_MAZEFLAG, MKTRAP_NOSPIDERONWEB, MKTRAP_NOVICTIM, MKTRAP_SEEN, MM_ADJACENTOK, MM_IGNOREWATER, MM_NOCOUNTBIRTH, MM_NOGRP, MM_NOMSG, MM_NOTAIL, MOAT, MORGUE, NEUTRAL, NO_TRAP, NON_PM, OBJ_CONTAINED, OBJ_FLOOR, OROOM, PIT, POLY_TRAP, POOL, POTIONSHOP, RINGSHOP, ROCKTRAP, ROLLING_BOULDER_TRAP, ROOM, ROOMOFFSET, ROWNO, ROT_CORPSE, RUST_TRAP, S_LDWASHER, S_LPUDDING, S_LRING, SCORR, SCROLLSHOP, SDOOR, SET_LIT_NOCHANGE, SHARED, SHOPBASE, SINK, SLP_GAS_TRAP, SOLID, SPACE_POS, SPACELOC, SPIKED_PIT, SQKY_BOARD, STAIRS, STATUE_TRAP, STONE, STRAT_WAITFORU, SWAMP, T_LOOTED, TDWALL, TELEP_TRAP, TEMPLE, THEMEROOM, THRONE, TIMER_OBJECT, TLCORNER, TLWALL, TOOLSHOP, TRAPDOOR, TRAPNUM, TRAPPED_CHEST, TRAPPED_DOOR, TRCORNER, TREE, TREE_LOOTED, TREE_SWARM, TRWALL, TUWALL, VAULT, VIBRATING_SQUARE, VWALL, W_ANY, W_EAST, W_NONDIGGABLE, W_NONPASSWALL, W_NORTH, W_RANDOM, W_SOUTH, W_WEST, WANDSHOP, WATER, WEAPONSHOP, WEB, WET, ZOMBIFY_MON, ZOO, NO_ROOM, INVALID_TYPE, MAX_TYPE, ONAME_LEVEL_DEF } from './const.js';
const G_NOGEN = 0x0200;
const G_IGNORE = 0x8000;
const SVALL = 0xff;
// ── Character to terrain type mapping (C nhlua.c char2typ[]) ──
// C ref: nhlua.c char2typ[] — order matters; duplicate '-' entries
// must preserve first-match behavior.
const CHAR2TYP = [
[' ', STONE],
['#', CORR],
['.', ROOM],
['-', HWALL],
['-', TLCORNER],
['-', TRCORNER],
['-', BLCORNER],
['-', BRCORNER],
['-', CROSSWALL],
['-', TUWALL],
['-', TDWALL],
['-', TLWALL],
['-', TRWALL],
['-', DBWALL],
['|', VWALL],
['+', DOOR],
['A', AIR],
['C', CLOUD],
['S', SDOOR],
['H', SCORR],
['{', FOUNTAIN],
['\\', THRONE],
['K', SINK],
['}', MOAT],
['P', POOL],
['L', LAVAPOOL],
['Z', LAVAWALL],
['I', ICE],
['W', WATER],
['T', TREE],
['F', IRONBARS],
['x', MAX_TYPE], // see-through
['B', CROSSWALL], // boundary
['w', MATCH_WALL], // IS_STWALL()
['~', ROOM], // DEC graphics mid-dot support in JS sessions
];
export function splev_chr2typ(ch) {
for (const [mapCh, typ] of CHAR2TYP) {
if (ch === mapCh) return typ;
}
return INVALID_TYPE;
}
// ── des_map: place a map fragment on the level ──
// C ref: sp_lev.c:6100 lspo_map()
//
// Parses a multiline map string and writes terrain to the level.
// For themed rooms: places at random (x,y) on the level, checks
// for collision with existing terrain, retries if needed.
export async function des_map(mapStr, x, y, lit) {
const g = game;
const map = g.level;
if (!map) return null;
// C ref: sp_lev.c:6107-6108 — early exit if themed room already failed
if (g.in_mk_themerooms && g.themeroom_failed) return null;
let contentsFn = null;
// Lua-style call: map({ halign="...", valign="...", map="..." }).
// C ref: sp_lev.c lspo_map().
if (mapStr && typeof mapStr === 'object' && !Array.isArray(mapStr)) {
const opts = mapStr;
mapStr = opts.map;
lit = opts.lit ?? lit;
if (typeof opts.contents === 'function') {
contentsFn = opts.contents;
}
if (Array.isArray(opts.coord) && opts.coord.length >= 2) {
x = opts.coord[0];
y = opts.coord[1];
} else {
if (Number.isFinite(opts.x)) x = opts.x;
if (Number.isFinite(opts.y)) y = opts.y;
}
if ((x == null || y == null) && opts.halign && opts.valign) {
const x_maze_max = g.x_maze_max ?? ((COLNO - 1) & ~1);
const y_maze_max = g.y_maze_max ?? ((ROWNO - 1) & ~1);
const linesForSize = String(mapStr || '').split('\n');
if (linesForSize.length > 0 && linesForSize[0] === '') linesForSize.shift();
if (linesForSize.length > 0 && linesForSize[linesForSize.length - 1] === '') linesForSize.pop();
const xsize = Math.max(0, ...linesForSize.map(l => l.length));
const ysize = linesForSize.length;
const halign = String(opts.halign).toLowerCase();
const valign = String(opts.valign).toLowerCase();
switch (halign) {
case 'left': x = g.splev_init_present ? 1 : 3; break;
case 'half-left': x = 2 + Math.trunc((x_maze_max - 2 - xsize) / 4); break;
case 'center': x = 2 + Math.trunc((x_maze_max - 2 - xsize) / 2); break;
case 'half-right': x = 2 + Math.trunc(((x_maze_max - 2 - xsize) * 3) / 4); break;
case 'right': x = x_maze_max - xsize - 1; break;
default: break;
}
switch (valign) {
case 'top': y = 3; break;
case 'center': y = 2 + Math.trunc((y_maze_max - 2 - ysize) / 2); break;
case 'bottom': y = y_maze_max - ysize - 1; break;
default: break;
}
if (Number.isFinite(x) && !(x % 2)) x++;
if (Number.isFinite(y) && !(y % 2)) y++;
}
}
if (Array.isArray(mapStr)) {
mapStr = mapStr.join('\n');
}
if (typeof mapStr !== 'string') {
throw new Error('des.map requires string map data');
}
// Parse map string into lines
const lines = mapStr.split('\n');
// C ref: Lua [[...]] strips the first character if it's a newline.
// JS template literals include the leading newline, so strip it here.
if (lines.length > 0 && lines[0] === '') lines.shift();
// C ref: mapfrag_fromstr() does not count a final trailing empty row.
if (lines.length > 0 && lines[lines.length - 1] === '') lines.pop();
const mapH = lines.length;
const mapW = Math.max(...lines.map(l => l.length));
// C ref: sp_lev.c:6140-6141 — save original coords for retry logic.
// ox/oy track whether each axis was originally unspecified (null).
// When null, the retry loop picks new random coords on each attempt.
const ox = x, oy = y;
let tryct = 0;
let themedMapFailed = false;
// C ref: sp_lev.c:6142 redo_maploc — retry loop for themed room placement.
// For non-themed maps or maps with explicit coords, this runs exactly once.
redo_maploc: for (;;) { // eslint-disable-line no-labels
g.sp_xsize = mapW;
g.sp_ysize = mapH;
// C ref: sp_lev.c:6146-6167 — themed room random position selection.
// Only randomize axes that were originally unspecified (ox/oy null).
if (g.in_mk_themerooms && (ox == null || oy == null)) {
if (ox == null) {
if (g.coder?.croom) {
x = somex(g.coder.croom) - mapW;
if (x < 1) x = 1;
} else {
x = 1 + rn2(COLNO - 1 - mapW);
}
}
if (oy == null) {
if (g.coder?.croom) {
y = somey(g.coder.croom) - mapH;
if (y < 1) y = 1;
} else {
y = rn2(ROWNO - mapH);
}
}
}
// C ref: sp_lev.c:6169-6190 — compute xstart/ystart from coords.
if (x != null && y != null) {
if (g.coder?.croom) {
// In a room: adjust to room-relative coords
g.sp_xstart = x + g.coder.croom.lx;
g.sp_ystart = y + g.coder.croom.ly;
g.sp_xsize = Math.min(mapW, g.coder.croom.hx - g.coder.croom.lx);
g.sp_ysize = Math.min(mapH, g.coder.croom.hy - g.coder.croom.ly);
} else {
g.sp_xstart = x;
g.sp_ystart = y;
}
} else {
// C ref: sp_lev.c:6191-6225 — halign/valign placement (SPLEV_CENTER default)
const x_maze_max = g.x_maze_max ?? ((COLNO - 1) & ~1);
const y_maze_max = g.y_maze_max ?? ((ROWNO - 1) & ~1);
g.sp_xstart = 2 + Math.trunc((x_maze_max - 2 - mapW) / 2);
g.sp_ystart = 2 + Math.trunc((y_maze_max - 2 - mapH) / 2);
if (!(g.sp_xstart % 2)) g.sp_xstart++;
if (!(g.sp_ystart % 2)) g.sp_ystart++;
}
// C ref: sp_lev.c:6227-6238 — y-overflow handling
if (g.sp_ystart < 0 || g.sp_ystart + g.sp_ysize > ROWNO) {
if (g.in_mk_themerooms) {
themedMapFailed = true;
break;
}
g.sp_ystart += (g.sp_ystart > 0) ? -2 : 2;
if (g.sp_ysize === ROWNO) g.sp_ystart = 0;
if (g.sp_ystart < 0 || g.sp_ystart + g.sp_ysize > ROWNO) g.sp_ystart = 0;
}
if (g.sp_xsize <= 1 && g.sp_ysize <= 1) {
resetXyStartSize();
break;
}
// C ref: sp_lev.c:6246-6274 — themed room collision check.
// Ensures the map area + 1-cell border is clear (STONE, NO_ROOM).
if (g.in_mk_themerooms) {
let isokp = true;
const yhi = Math.min(ROWNO, g.sp_ystart + g.sp_ysize) + 1;
const xhi = Math.min(COLNO, g.sp_xstart + g.sp_xsize) + 1;
for (let cy = g.sp_ystart - 1; cy < yhi; cy++) {
for (let cx = g.sp_xstart - 1; cx < xhi; cx++) {
if (!isok(cx, cy)) {
isokp = false;
} else {
const loc = map.at(cx, cy);
if (!loc) {
isokp = false;
} else if (cy < g.sp_ystart || cy >= (g.sp_ystart + g.sp_ysize)
|| cx < g.sp_xstart || cx >= (g.sp_xstart + g.sp_xsize)) {
// Border: must be untouched STONE/NO_ROOM
if (loc.typ !== STONE || loc.roomno !== NO_ROOM)
isokp = false;
} else {
// Interior: check against map content
const mch = lines[cy - g.sp_ystart]?.[cx - g.sp_xstart] ?? ' ';
const mptyp = splev_chr2typ(mch);
if (mptyp >= MAX_TYPE) {
// see-through marker — skip this cell
} else if ((loc.typ !== STONE && loc.typ !== mptyp)
|| loc.roomno !== NO_ROOM) {
isokp = false;
}
}
}
if (!isokp) {
// C ref: sp_lev.c:6269 — tryct++ < 100, post-increment
if (tryct++ < 100 && (ox == null || oy == null))
continue redo_maploc; // eslint-disable-line no-labels
themedMapFailed = true;
break;
}
}
if (themedMapFailed) break;
}
if (themedMapFailed) break;
}
break; // placement succeeded (or not themed — proceed to terrain write)
}
// C ref: sp_lev.c:6303-6306 — on themed room failure, reset and return
if (themedMapFailed) {
g.themeroom_failed = true;
resetXyStartSize();
return null;
}
// Use computed xstart/ystart for terrain writing
x = g.sp_xstart;
y = g.sp_ystart;
// C ref: lspo_map() returns a selection containing all map tiles placed.
const mapSelection = new SelectionVar();
// C ref: sp_lev.c:6277-6297 — load map terrain
for (let my = 0; my < g.sp_ysize; my++) {
for (let mx = 0; mx < g.sp_xsize; mx++) {
const ch = lines[my]?.[mx] ?? ' ';
const typ = splev_chr2typ(ch);
if (typ < 0 || typ >= MAX_TYPE) continue; // skip invalid/see-through
const lx = x + mx, ly = y + my;
if (!isok(lx, ly)) continue;
const loc = map.at(lx, ly);
if (loc) {
// C ref: sp_lev.c:6288-6292 — clear fields BEFORE set_levltyp.
loc.flags = 0;
loc.horizontal = 0;
loc.roomno = 0;
loc.edge = 0;
// C ref: mkmaze.c:82-87 — SDOOR+AIR → keep SDOOR, mark arboreal
if (loc.typ === SDOOR && typ === AIR) {
loc.arboreal_sdoor = 1;
markSpLevMap(lx, ly);
mapSelection.setAbsPoint(lx, ly, 1);
continue;
}
// C ref: mkmaze.c set_levltyp — refuse to overwrite stairs/ladders
if (loc.typ === STAIRS || loc.typ === LADDER) continue;
// C ref: mkmaze.c set_levltyp + sel_set_ter
loc.typ = typ;
loc.lit = IS_LAVA(loc.typ) ? 1 : (lit ? 1 : 0);
if (loc.typ === SDOOR || IS_DOOR(loc.typ)) {
if (loc.typ === SDOOR) loc.flags = D_CLOSED;
if (lx > 0) {
const left = map.at(lx - 1, ly);
if (left && (IS_WALL(left.typ) || left.horizontal)) loc.horizontal = 1;
}
} else if (loc.typ === HWALL || loc.typ === IRONBARS) {
loc.horizontal = 1;
}
markSpLevMap(lx, ly);
mapSelection.setAbsPoint(lx, ly, 1);
}
}
}
// C ref: sp_lev.c:6308-6312 — run contents callback, then reset coords.
if (contentsFn) {
await contentsFn({ xsize: g.sp_xsize, ysize: g.sp_ysize });
resetXyStartSize();
}
return mapSelection;
}
// ── des_region: create a room region ──
// C ref: sp_lev.c:1650 lspo_region()
// For themed rooms, creates an irregular room region.
export function des_region(x1, y1, x2, y2, rtype, rlit, irregular, filled) {
const g = game;
if (!g?.level) return null;
// C ref: sp_lev.c:1513 — litstate_rnd runs BEFORE the nroom check.
// C always consumes the RNG here, even when nroom >= MAXNROFROOMS.
if (rlit < 0) {
const dng = g.dungeons?.[g.u?.uz?.dnum ?? 0];
const d = (dng?.depth_start ?? 0) + (g.u?.uz?.dlevel ?? 1) - 1;
rlit = (rnd(1 + Math.abs(d)) < 11 && rn2(77)) ? 1 : 0;
} else {
rlit = rlit ? 1 : 0;
}
// C ref: sp_lev.c:5661 — nroom check AFTER litstate_rnd
if (g.level.nroom >= MAXNROFROOMS) return null;
if (irregular) {
const roomnoidx = g.level.nroom;
const roomno = roomnoidx + ROOMOFFSET;
g.smeq[roomnoidx] = roomnoidx;
// C ref: sp_lev.c:lspo_region() irregular branch:
// flood_fill_rm(..., anyroom=TRUE) then add_room(min,max,FALSE,...,special=TRUE).
g._min_rx = g._max_rx = x1;
g._min_ry = g._max_ry = y1;
flood_fill_rm(x1, y1, roomno, !!rlit, true);
add_room(g._min_rx, g._min_ry, g._max_rx, g._max_ry, false, rtype ?? OROOM, true);
const troom = g.level.rooms[roomnoidx];
if (!troom) return null;
troom.rlit = rlit;
troom.irregular = true;
troom.needfill = filled || 0;
troom.needjoining = true;
return troom;
}
for (let x = x1; x <= x2; x++) {
for (let y = y1; y <= y2; y++) {
const loc = g.level.at(x, y);
if (loc && IS_ROOM(loc.typ)) {
loc.lit = !!rlit;
}
}
}
return null;
}
function growSelection(sel, dir) {
if (!(sel instanceof SelectionVar)) return sel;
let mask = dir;
if (mask === W_RANDOM) mask = randomWdir();
const set = new Set(sel.points.map((pt) => `${pt.x},${pt.y}`));
let minX = COLNO - 1, minY = ROWNO - 1, maxX = 0, maxY = 0;
for (const pt of sel.points) {
if (pt.x < minX) minX = pt.x;
if (pt.y < minY) minY = pt.y;
if (pt.x > maxX) maxX = pt.x;
if (pt.y > maxY) maxY = pt.y;
}
const added = [];
for (let x = Math.max(0, minX - 1); x <= Math.min(COLNO - 1, maxX + 1); x++) {
for (let y = Math.max(0, minY - 1); y <= Math.min(ROWNO - 1, maxY + 1); y++) {
const west = set.has(`${x + 1},${y}`);
const north = set.has(`${x},${y + 1}`);
const east = set.has(`${x - 1},${y}`);
const south = set.has(`${x},${y - 1}`);
const nw = set.has(`${x + 1},${y + 1}`);
const ne = set.has(`${x - 1},${y + 1}`);
const se = set.has(`${x - 1},${y - 1}`);
const sw = set.has(`${x + 1},${y - 1}`);
const grows =
((mask & W_WEST) && west)
|| (((mask & (W_WEST | W_NORTH)) === (W_WEST | W_NORTH)) && nw)
|| ((mask & W_NORTH) && north)
|| (((mask & (W_NORTH | W_EAST)) === (W_NORTH | W_EAST)) && ne)
|| ((mask & W_EAST) && east)
|| (((mask & (W_EAST | W_SOUTH)) === (W_EAST | W_SOUTH)) && se)
|| ((mask & W_SOUTH) && south)
|| (((mask & (W_SOUTH | W_WEST)) === (W_SOUTH | W_WEST)) && sw);
if (grows && !set.has(`${x},${y}`)) added.push({ x, y });
}
}
sel.points.push(...added);
return sel;
}
function parseGrowDir(dir) {
switch (String(dir || 'all').toLowerCase()) {
case 'all': return W_ANY;
case 'random': return W_RANDOM;
case 'north': return W_NORTH;
case 'west': return W_WEST;
case 'east': return W_EAST;
case 'south': return W_SOUTH;
default: return W_ANY;
}
}
function randomWdir() {
const wdirs = [W_NORTH, W_SOUTH, W_EAST, W_WEST];
return wdirs[rn2(4)];
}
function lightRegion(x1, y1, x2, y2, rlit) {
if (!game.level) return;
const litstate = !!rlit;
let lowx = x1, lowy = y1, hix = x2, hiy = y2;
if (litstate) {
lowx = Math.max(lowx - 1, 1);
hix = Math.min(hix + 1, COLNO - 1);
lowy = Math.max(lowy - 1, 0);
hiy = Math.min(hiy + 1, ROWNO - 1);
}
for (let x = lowx; x <= hix; x++) {
for (let y = lowy; y <= hiy; y++) {
const loc = game.level.at(x, y);
if (!loc) continue;
loc.lit = IS_LAVA(loc.typ) || litstate;
loc.waslit = !!loc.lit;
}
}
}
// ── Selection API needed by themed rooms ──
class SelectionVar {
constructor(points = []) {
this.points = points.slice();
}
clone() {
return new SelectionVar(this.points);
}
numpoints() {
return this.points.length;
}
rndcoord(removeit = 0) {
if (!this.points.length) return { x: -1, y: -1 };
const bounds = this.bounds();
const pointSet = new Set(this.points.map((pt) => `${pt.x},${pt.y}`));
let idx = 0;
for (let x = bounds.lx; x <= bounds.hx; x++) {
for (let y = bounds.ly; y <= bounds.hy; y++) {
if (pointSet.has(`${x},${y}`)) idx++;
}
}
if (!idx) return { x: -1, y: -1 };
let c = rn2(idx);
for (let x = bounds.lx; x <= bounds.hx; x++) {
for (let y = bounds.ly; y <= bounds.hy; y++) {
const key = `${x},${y}`;
if (!pointSet.has(key)) continue;
if (c === 0) {
if (removeit) {
this.points = this.points.filter((pt) => !(pt.x === x && pt.y === y));
}
if (game.currentRoom) {
return { x: x - game.currentRoom.lx, y: y - game.currentRoom.ly };
}
return { x: x - (game.sp_xstart ?? 0), y: y - (game.sp_ystart ?? 0) };
}
c--;
}
}
return { x: -1, y: -1 };
}
percentage(pct) {
const kept = new SelectionVar();
const bounds = this.bounds();
const pointSet = new Set(this.points.map((pt) => `${pt.x},${pt.y}`));
for (let x = bounds.lx; x <= bounds.hx; x++) {
for (let y = bounds.ly; y <= bounds.hy; y++) {
if (pointSet.has(`${x},${y}`) && rn2(100) < pct) {
kept.setAbsPoint(x, y, 1);
}
}
}
return kept;
}
async iterate(fn) {
const bounds = this.bounds();
const pointSet = new Set(this.points.map((pt) => `${pt.x},${pt.y}`));
for (let y = bounds.ly; y <= bounds.hy; y++) {
for (let x = Math.max(1, bounds.lx); x <= bounds.hx; x++) {
if (!pointSet.has(`${x},${y}`)) continue;
const rx = game.currentRoom ? (x - game.currentRoom.lx) : (x - (game.sp_xstart ?? 0));
const ry = game.currentRoom ? (y - game.currentRoom.ly) : (y - (game.sp_ystart ?? 0));
await fn(rx, ry);
}
}
}
filter_mapchar(ch, lit = -2) {
const typ = parseMatchMapChr(ch);
if (typ < 0) return new SelectionVar();
const filtered = new SelectionVar();
const level = game.level;
if (!level) return filtered;
const bounds = this.bounds();
const pointSet = new Set(this.points.map((pt) => `${pt.x},${pt.y}`));
for (let x = bounds.lx; x <= bounds.hx; x++) {
for (let y = bounds.ly; y <= bounds.hy; y++) {
if (!pointSet.has(`${x},${y}`)) continue;
const loc = level.at(x, y);
if (!loc || !matchMapTyps(typ, loc.typ)) continue;
switch (lit) {
default:
case -2:
filtered.setAbsPoint(x, y, 1);
break;
case -1:
filtered.setAbsPoint(x, y, rn2(2));
break;
case 0:
case 1:
if ((loc.lit ? 1 : 0) === lit) filtered.setAbsPoint(x, y, 1);
break;
}
}
}
return filtered;
}
bounds() {
if (!this.points.length) {
return { lx: 0, ly: 0, hx: COLNO - 1, hy: ROWNO - 1 };
}
let lx = COLNO - 1, ly = ROWNO - 1, hx = 0, hy = 0;
for (const pt of this.points) {
if (pt.x < lx) lx = pt.x;
if (pt.y < ly) ly = pt.y;
if (pt.x > hx) hx = pt.x;
if (pt.y > hy) hy = pt.y;
}
return { lx, ly, hx, hy };
}
// C ref: nhlsel.c l_selection_room → selvar.c selection_from_mkroom.
// Creates a selection of all floor tiles belonging to the current room.
room(roomIdx) {
const sel = new SelectionVar();
let croom = null;
if (roomIdx !== undefined && roomIdx >= 0 && roomIdx < (game.level?.nroom ?? 0)) {
croom = game.level?.rooms?.[roomIdx];
}
if (!croom && game.currentRoom) {
croom = game.currentRoom;
}
if (!croom) return sel;
const rooms = game.level?.rooms || [];
const rmno = rooms.indexOf(croom) + ROOMOFFSET;
for (let y = croom.ly; y <= croom.hy; y++) {
for (let x = croom.lx; x <= croom.hx; x++) {
if (!isok(x, y)) continue;
const loc = game.level?.at(x, y);
if (loc && !loc.edge && loc.roomno === rmno) {
sel.setAbsPoint(x, y, 1);
}
}
}
return sel;
}
grow(dir = 'all') {
const grown = this.clone();
growSelection(grown, parseGrowDir(dir));
return grown;
}
set(x = -1, y = -1, value = 1) {
const coord = resolveSelectionCoord(x, y);
if (!coord) return this;
const key = `${coord.x},${coord.y}`;
if (value) {
if (!this.points.some((pt) => pt.x === coord.x && pt.y === coord.y)) {
this.points.push(coord);
}
} else {
this.points = this.points.filter((pt) => `${pt.x},${pt.y}` !== key);
}
return this;
}
negate() {
const existing = new Set(this.points.map((pt) => `${pt.x},${pt.y}`));
const negated = [];
for (let x = 0; x < COLNO; x++) {
for (let y = 0; y < ROWNO; y++) {
if (!existing.has(`${x},${y}`)) negated.push({ x, y });
}
}
return new SelectionVar(negated);
}
union(other) {
const merged = new Map(this.points.map((pt) => [`${pt.x},${pt.y}`, pt]));
if (other instanceof SelectionVar) {
for (const pt of other.points) merged.set(`${pt.x},${pt.y}`, pt);
}
return new SelectionVar([...merged.values()]);
}
intersect(other) {
return this.combineWith(other, (a, b) => a & b, false);
}
xor(other) {
return this.combineWith(other, (a, b) => a ^ b, true);
}
subtract(other) {
return this.combineWith(other, (a, b) => (a ^ b) & a, true);
}
line(x1, y1, x2, y2) {
const drawn = this.clone();
const p1 = resolveSelectionCoord(x1, y1);
const p2 = resolveSelectionCoord(x2, y2);
if (!p1 || !p2) return drawn;
selectionDoLine(p1.x, p1.y, p2.x, p2.y, drawn);
return drawn;
}
rect(x1, y1, x2, y2) {
const drawn = this.clone();
const p1 = resolveSelectionCoord(x1, y1);
const p2 = resolveSelectionCoord(x2, y2);
if (!p1 || !p2) return drawn;
selectionDoLine(p1.x, p1.y, p2.x, p1.y, drawn);
selectionDoLine(p1.x, p1.y, p1.x, p2.y, drawn);
selectionDoLine(p2.x, p1.y, p2.x, p2.y, drawn);
selectionDoLine(p1.x, p2.y, p2.x, p2.y, drawn);
return drawn;
}
fillrect(x1, y1, x2, y2) {
const filled = this.clone();
const p1 = resolveSelectionCoord(x1, y1);
const p2 = resolveSelectionCoord(x2, y2);
if (!p1 || !p2) return filled;
if (p1.x === p2.x) {
for (let y = p1.y; y <= p2.y; y++) filled.setAbsPoint(p1.x, y, 1);
} else {
for (let y = p1.y; y <= p2.y; y++) selectionDoLine(p1.x, y, p2.x, y, filled);
}
return filled;
}
randline(x1, y1, x2, y2, roughness = 7) {
const drawn = this.clone();
const p1 = resolveSelectionCoord(x1, y1);
const p2 = resolveSelectionCoord(x2, y2);
if (!p1 || !p2) return drawn;
selectionDoRandline(p1.x, p1.y, p2.x, p2.y, roughness, 12, drawn);
return drawn;
}
circle(x, y, r, filled = 0) {
const drawn = this.clone();
const center = resolveSelectionCoord(x, y);
if (!center) return drawn;
selectionDoEllipse(drawn, center.x, center.y, r, r, !filled);
return drawn;
}
ellipse(x, y, r1, r2, filled = 0) {
const drawn = this.clone();
const center = resolveSelectionCoord(x, y);
if (!center) return drawn;
selectionDoEllipse(drawn, center.x, center.y, r1, r2, !filled);
return drawn;
}
setAbsPoint(x, y, value = 1) {
if (x < 0 || y < 0 || x >= COLNO || y >= ROWNO) return this;
const key = `${x},${y}`;
if (value) {
if (!this.points.some((pt) => pt.x === x && pt.y === y)) {
this.points.push({ x, y });
}
} else {
this.points = this.points.filter((pt) => `${pt.x},${pt.y}` !== key);
}
return this;
}
combineWith(other, combine, recalcBounds = false) {
if (!(other instanceof SelectionVar)) return new SelectionVar();
const aBounds = this.bounds();
const bBounds = other.bounds();
const lx = Math.min(aBounds.lx, bBounds.lx);
const ly = Math.min(aBounds.ly, bBounds.ly);
const hx = Math.max(aBounds.hx, bBounds.hx);
const hy = Math.max(aBounds.hy, bBounds.hy);
const aSet = new Set(this.points.map((pt) => `${pt.x},${pt.y}`));
const bSet = new Set(other.points.map((pt) => `${pt.x},${pt.y}`));
const result = new SelectionVar();
for (let x = lx; x <= hx; x++) {
for (let y = ly; y <= hy; y++) {
const val = combine(aSet.has(`${x},${y}`) ? 1 : 0, bSet.has(`${x},${y}`) ? 1 : 0);
result.setAbsPoint(x, y, val);
}
}
return recalcBounds ? new SelectionVar(result.points) : result;
}
match(pattern) {
if (typeof pattern !== 'string') return new SelectionVar();
const mf = mapfragFromStr(pattern);
if (!mf) return new SelectionVar();
const matched = new SelectionVar();
for (let y = 0; y <= ROWNO; y++) {
for (let x = 1; x < COLNO; x++) {
matched.setAbsPoint(x, y, mapfragMatch(mf, x, y) ? 1 : 0);
}
}
return matched;
}
}
function roomSelection(croom = null) {
const room = croom || game.currentRoom;
if (!room || !game.level) return new SelectionVar();
const roomno = (room.roomnoidx ?? -1) + ROOMOFFSET;
const points = [];
for (let x = room.lx; x <= room.hx; x++) {
for (let y = room.ly; y <= room.hy; y++) {
const loc = game.level.at(x, y);
if (loc && !loc.edge && loc.roomno === roomno) {
points.push({ x, y });
}
}
}
return new SelectionVar(points);
}
export const selection = {
new: () => new SelectionVar(),
set(selOrX = -1, y = -1, value = 1, maybeValue = 1) {
if (selOrX instanceof SelectionVar) {
if (arguments.length === 1) return selOrX.set();
if (arguments.length === 2) return selOrX.set(y);
if (arguments.length === 3) return selOrX.set(y, value);
return selOrX.set(y, value, maybeValue);
}
return new SelectionVar().set(selOrX, y, value);
},
rndcoord(sel, removeit = 0) {
if (!(sel instanceof SelectionVar)) return { x: -1, y: -1 };
return sel.rndcoord(removeit);
},
async iterate(sel, fn) {
if (!(sel instanceof SelectionVar)) return;
await sel.iterate(fn);
},
clone(sel) {
if (!(sel instanceof SelectionVar)) return new SelectionVar();
return sel.clone();
},
bounds(sel) {
if (!(sel instanceof SelectionVar)) return { lx: 0, ly: 0, hx: COLNO - 1, hy: ROWNO - 1 };
return sel.bounds();
},
grow(sel, dir = 'all') {
if (!(sel instanceof SelectionVar)) return new SelectionVar();
return sel.grow(dir);
},
negate(sel = null) {
if (sel instanceof SelectionVar) return sel.negate();
return new SelectionVar().negate();
},
union(a, b) {
if (!(a instanceof SelectionVar)) return new SelectionVar();
return a.union(b);
},
intersect(a, b) {
if (!(a instanceof SelectionVar)) return new SelectionVar();
return a.intersect(b);
},
xor(a, b) {
if (!(a instanceof SelectionVar)) return new SelectionVar();
return a.xor(b);
},
subtract(a, b) {
if (!(a instanceof SelectionVar)) return new SelectionVar();
return a.subtract(b);
},
line(selOrX1, y1, x2, y2, maybeY2) {
if (selOrX1 instanceof SelectionVar) return selOrX1.line(y1, x2, y2, maybeY2);
return new SelectionVar().line(selOrX1, y1, x2, y2);
},
rect(selOrX1, y1, x2, y2, maybeY2) {
if (selOrX1 instanceof SelectionVar) return selOrX1.rect(y1, x2, y2, maybeY2);
return new SelectionVar().rect(selOrX1, y1, x2, y2);
},
fillrect(selOrX1, y1, x2, y2, maybeY2) {
if (selOrX1 instanceof SelectionVar) return selOrX1.fillrect(y1, x2, y2, maybeY2);
return new SelectionVar().fillrect(selOrX1, y1, x2, y2);
},
area(selOrX1, y1, x2, y2, maybeY2) {
if (selOrX1 instanceof SelectionVar) return selOrX1.fillrect(y1, x2, y2, maybeY2);
return new SelectionVar().fillrect(selOrX1, y1, x2, y2);
},
randline(selOrX1, y1, x2, y2, roughness, maybeRoughness = 7) {
if (selOrX1 instanceof SelectionVar) return selOrX1.randline(y1, x2, y2, roughness, maybeRoughness);
return new SelectionVar().randline(selOrX1, y1, x2, y2, roughness);
},
circle(selOrX, y, r, filled = 0, maybeFilled = 0) {
if (selOrX instanceof SelectionVar) return selOrX.circle(y, r, filled, maybeFilled);
return new SelectionVar().circle(selOrX, y, r, filled);
},
ellipse(selOrX, y, r1, r2, filled = 0, maybeFilled = 0) {
if (selOrX instanceof SelectionVar) return selOrX.ellipse(y, r1, r2, filled, maybeFilled);
return new SelectionVar().ellipse(selOrX, y, r1, r2, filled);
},
floodfill(x, y, diagonals = false) {
const start = resolveSelectionCoord(x, y);
const level = game.level;
const sel = new SelectionVar();
if (!start || !level || !isok(start.x, start.y)) return sel;
const startTyp = level.at(start.x, start.y)?.typ;
if (startTyp == null) return sel;
const seen = new Set();
const stack = [[start.x, start.y]];
while (stack.length) {
const [cx, cy] = stack.pop();
const key = `${cx},${cy}`;
if (seen.has(key)) continue;
seen.add(key);
if (!isok(cx, cy)) continue;
if (level.at(cx, cy)?.typ !== startTyp) continue;
sel.setAbsPoint(cx, cy, 1);
stack.push([cx + 1, cy], [cx - 1, cy], [cx, cy + 1], [cx, cy - 1]);
if (diagonals) {
stack.push([cx + 1, cy + 1], [cx - 1, cy - 1], [cx - 1, cy + 1], [cx + 1, cy - 1]);
}
}
return sel;
},
room(arg) {
if (Number.isInteger(arg) && game.level.rooms && arg >= 0 && arg < game.level.rooms.length) {
return roomSelection(game.level.rooms[arg]);
}
return roomSelection();
},
percentage(sel, pct) {
if (!(sel instanceof SelectionVar)) return new SelectionVar();
return sel.percentage(pct);
},
match: function(pattern) {
return new SelectionVar().match(pattern);
},
};
// Utility exports
export function percent(p) { return rn2(100) < p; }
export function shuffle(arr) {
for (let i = arr.length - 1; i > 0; i--) {
const j = rn2(i + 1);
[arr[i], arr[j]] = [arr[j], arr[i]];
}
return arr;
}
// Level state
export const levelState = {
// C ref: dungeon.c depth() = depth_start + dlevel - 1
depth: () => {
const uz = game.u?.uz;
const dng = game.dungeons?.[uz?.dnum ?? 0];
return (dng?.depth_start ?? 0) + (uz?.dlevel ?? 1) - 1;
},
};
// nh namespace for Lua compatibility
export const nh = {
// C ref: dungeon.c level_difficulty() — uses depth(), not dlevel
level_difficulty: () => {
const uz = game.u?.uz;
const dng = game.dungeons?.[uz?.dnum ?? 0];
return (dng?.depth_start ?? 0) + (uz?.dlevel ?? 1) - 1;
},
rn2: (n) => rn2(n),
rn1: (x, y) => rn2(x) + y,
is_genocided: (name) => {
const needle = String(name || '').toLowerCase();
if (!needle) return false;
let mndx = -1;
for (let i = 0; i < mons.length; i++) {
if (mons[i]?.mname?.toLowerCase() === needle) {
mndx = i;
break;
}
}
if (mndx < 0) return false;
return !!((game.mvitals?.[mndx]?.mvflags ?? 0) & G_GONE);
},
debug_themerm: () => null,
parse_config: (line) => {
const text = String(line ?? '');
if (!text.trim()) return;
const parsed = parseNethackrc(text);
applyOptions(parsed, game);
},
eckey: (cmd) => {
// C ref: nhlua.c:1644 nhl_get_cmd_key → cmd_from_ecname
// Returns the default key binding for a command name.
// Format: ^X for Ctrl-X, M-X for Alt-X, or the key character.
const bindings = {
// Default vi-keys (numpad:0) bindings
kick: '^D', close: 'c', cast: 'Z', drop: 'd', eat: 'e',
fire: 'f', glance: ';', jump: 'M-j', loot: 'M-l', pickup: ',',
puton: 'P', quaff: 'q', quiver: 'Q', read: 'r', remove: 'R',
run: 'G', search: 's', swap: 'x', takeoff: 'T', throw: 't',
tip: 'M-T', travel: '_', twoweapon: 'X', untrap: 'M-u',
wait: '.', wear: 'W', wield: 'w', zap: 'z', down: '>',
up: '<', help: '?', moveeast: 'l', movewest: 'h',
movenorth: 'k', movesouth: 'j', movenortheast: 'u',
movenorthwest: 'y', movesoutheast: 'n', movesouthwest: 'b',
};
return bindings[cmd] || '?';
},
};
export function initLuaMT() {}
// ── nhlib.lua shared functions ──
// C ref: nethack-c/upstream/dat/nhlib.lua
// These functions are shared across all special level scripts.
// C ref: nhlib.lua:44 monkfoodshop()
export function monkfoodshop() {
if (String(u.role || '') === 'Monk') return 'health food shop';
return 'food shop';
}
// C ref: nhlib.lua:57 hell_tweaks(protected_area)
// Adds Gehennom terrain features: lava pools, rivers, boulders, iron bars.
export async function hell_tweaks(protected_area) {
const liquid = 'L';
const ground = '.';
const nProt = protected_area?.numpoints?.() ?? 0;
const prot = protected_area?.negate?.() ?? negate();
const depth = u.depth || 1;
// Random pools.
if (percent(20 + depth)) {
let pools = new SelectionVar();
const maxPools = 5 + (rn2(depth) + 1);
for (let i = 1; i <= maxPools; i++) pools.set();
pools = pools.union(selection.grow(selection.set(new SelectionVar()), 'west'));
pools = pools.union(selection.grow(selection.set(new SelectionVar()), 'north'));
pools = pools.union(selection.grow(selection.set(new SelectionVar()), 'random'));
pools = pools.intersect(prot);
if (percent(80)) {
const poolGround = pools.clone().grow('all').intersect(prot);
const pval = (rn2(8) + 1) * 10;
terrain(poolGround.percentage(pval), ground);
}
terrain(pools, liquid);
}
// Lava river.
if (percent(50)) {
let allRivers = new SelectionVar();
const reqpts = ((COLNO * ROWNO) - nProt) / 12;
let rpts = 0;
let riverTries = 0;
do {
const floor = selection.match(ground);
const a = selection.rndcoord(floor);
const b = selection.rndcoord(floor);
let lavaRiver = selection.randline(new SelectionVar(), a.x, a.y, b.x, b.y, 10);
if (percent(50)) lavaRiver = selection.grow(lavaRiver, 'north');
if (percent(50)) lavaRiver = selection.grow(lavaRiver, 'west');
allRivers = allRivers.union(lavaRiver);
allRivers = allRivers.intersect(prot);
rpts = allRivers.numpoints();
riverTries++;
} while (!(rpts > reqpts || riverTries > 7));
if (percent(60)) {
const prc = 10 * (rn2(6) + 1);
let riverBanks = selection.grow(allRivers);
riverBanks = riverBanks.intersect(prot);
terrain(selection.percentage(riverBanks, prc), ground);
}
terrain(allRivers, liquid);
}
// Replacing some walls with boulders.
if (percent(20)) {
const amount = 3 * (rn2(8) + 1);
const hWalls = selection.match('.w.').percentage(amount);
const vWalls = selection.match('.\nw\n.').percentage(amount);
let bWalls = hWalls.union(vWalls);
bWalls = bWalls.intersect(prot);
await bWalls.iterate(async (x, y) => {
terrain(x, y, '.');
await object('boulder', x, y);
});
}
// Replacing some walls with iron bars.
if (percent(20)) {
const amount = 3 * (rn2(8) + 1);
const hWalls = selection.match('.w.').percentage(amount);
const vWalls = selection.match('.\nw\n.').percentage(amount);
let fWalls = hWalls.union(vWalls);
fWalls = selection.grow(fWalls).intersect(selection.match('w'));
fWalls = fWalls.intersect(prot);
terrain(fWalls, 'F');
}
}
// C ref: nhlib.lua table_stringify
export function table_stringify(tbl) { return JSON.stringify(tbl); }
// C ref: nhlib.lua tutorial blacklist and events
const tutorial_blacklist_commands = { save: true };
const tutorial_events = [
{
async func() {
if ((game.u?.uhunger ?? 900) < 148) {
// C ref: nhlib.lua tutorial_events[1]
// local o = obj.new("blessed food ration"); o:placeobj(u.ux, u.uy);
const o = readobjnam('blessed food ration', null);
if (o) {
place_object(o, game.u.ux, game.u.uy);
stackobj(o);
}
// C ref: nhlua.c nhl_pline(..., true) => pline + display_nhwindow(WIN_MESSAGE, TRUE)
await pline("Looks like you're getting hungry. You'll starve to death, unless you eat something.");
await tty_display_nhwindow('message', true);
await pline(`Comestibles are eaten with '${nh.eckey('eat')}'`);
await tty_display_nhwindow('message', true);
return true;
}
return false;
},
},
];
// C ref: nhlib.lua:149 tutorial_cmd_before
export function tutorial_cmd_before(cmd) {
if (tutorial_blacklist_commands[cmd]) return false;
return true;
}
// C ref: nhlib.lua:156 tutorial_enter
export function tutorial_enter() {
// C: registers callbacks and saves gamestate
// nh.callback("cmd_before", "tutorial_cmd_before");
// nh.callback("end_turn", "tutorial_turn");
// nh.gamestate();
}
// C ref: nhlib.lua:165 tutorial_leave
export function tutorial_leave() {
// C: removes callbacks and restores gamestate
// nh.callback("cmd_before", "tutorial_cmd_before", true);
// nh.callback("end_turn", "tutorial_turn", true);
// nh.gamestate(true);
}
// C ref: nhlib.lua:174 tutorial_turn
export async function tutorial_turn() {
for (let k = tutorial_events.length - 1; k >= 0; k--) {
const v = tutorial_events[k];
if (!v) continue;
const ucoordMatch = !v.ucoord
|| (game.u?.ux === v.ucoord[0] + 3 && game.u?.uy === v.ucoord[1] + 3);
if (ucoordMatch) {
if ((await v.func()) || v.remove) {
tutorial_events.splice(k, 1);
}
}
}
}
// Named export aliases for des.* access via `import * as des`
export { des_map as map };
// ── u namespace for level scripts ──
// Provides hero state that Lua level scripts read.
export const u = {
get role() { return game.urole?.name?.m || ''; },
get uenmax() { return game.u?.uenmax ?? 0; },
get depth() { return dungeonDepth(game.u?.uz); },
};
const containerObjStack = [];
const inventoryMonsterStack = [];
function isFiniteCoord(value) {
return value && Number.isFinite(value.x) && Number.isFinite(value.y);
}
function normalizeCoord(coord, x, y) {
if (Array.isArray(coord) && coord.length >= 2) {
return [coord[0], coord[1]];
}
if (isFiniteCoord(coord)) {
return [coord.x, coord.y];
}
// Lua-style calls often pass coord as the 2nd positional arg:
// des.monster("V", [x, y]) or des.monster("V", {x, y}).
if (y == null) {
if (Array.isArray(x) && x.length >= 2) {
return [x[0], x[1]];
}
if (isFiniteCoord(x)) {
return [x.x, x.y];
}
}
if (Number.isFinite(x) && Number.isFinite(y)) {
return [x, y];
}
return null;
}
function normalizeObjectArgs(args, x, y) {
if (args == null) return {};
if (typeof args === 'string') {
const coord = normalizeCoord(null, x, y);
const base = args.length === 1 ? { class: args } : { id: args };
return coord ? { ...base, coord } : base;
}
const coord = normalizeCoord(args.coord, args.x, args.y);
return coord ? { ...args, coord } : args;
}
function normalizeTrapArgs(args, x, y) {
if (args == null) return {};
if (Number.isFinite(args)) {
const coord = normalizeCoord(null, x, y);
const base = { type: args };
return coord ? { ...base, coord } : base;
}
if (typeof args === 'string') {
const coord = normalizeCoord(null, x, y);
return coord ? { type: args, coord } : { type: args };
}
const coord = normalizeCoord(args.coord, args.x, args.y);
return coord ? { ...args, coord } : args;
}
function normalizeMonsterArgs(args, x, y) {
if (args == null) return {};
if (typeof args === 'string') {
const coord = normalizeCoord(null, x, y);
const base = args.length === 1 ? { class: args } : { id: args };
return coord ? { ...base, coord } : base;
}
const coord = normalizeCoord(args.coord, args.x, args.y);
return coord ? { ...args, coord } : args;
}
function normalizeEngravingArgs(args) {
if (!args) return args;
const coord = normalizeCoord(args.coord, args.x, args.y);
return coord ? { ...args, coord } : args;
}
function toAbsCoord(coord) {
if (!coord) return null;
if (game.currentRoom) {
return [coord[0] + game.currentRoom.lx, coord[1] + game.currentRoom.ly];
}
return [
coord[0] + (game.sp_xstart ?? 0),
coord[1] + (game.sp_ystart ?? 0),
];
}
function normalizeCoordPair(coordLike, x, y) {
if (Array.isArray(coordLike) && coordLike.length >= 2) return [coordLike[0], coordLike[1]];
if (isFiniteCoord(coordLike)) return [coordLike.x, coordLike.y];
if (Number.isFinite(x) && Number.isFinite(y)) return [x, y];
return null;
}
function currentMapBounds() {
const xstart = game.sp_xstart ?? 0;
const ystart = game.sp_ystart ?? 0;
const xsize = game.sp_xsize ?? 0;
const ysize = game.sp_ysize ?? 0;
if (xsize > 0 && ysize > 0) {
return {
lx: xstart,
ly: ystart,
hx: Math.min(COLNO - 1, xstart + xsize - 1),
hy: Math.min(ROWNO - 1, ystart + ysize - 1),
};
}
return { lx: 1, ly: 0, hx: COLNO - 1, hy: ROWNO - 1 };
}
function getLocationSpan() {
// C ref: sp_lev.c get_location(): mx/my/sx/sy come directly from
// gx.xstart/ystart/xsize/ysize and are not clipped to map bounds.
const hasSplevSpan = (game.sp_xsize ?? 0) > 0 && (game.sp_ysize ?? 0) > 0;
return {
mx: hasSplevSpan ? (game.sp_xstart ?? 0) : 1,
my: hasSplevSpan ? (game.sp_ystart ?? 0) : 0,
sx: hasSplevSpan ? game.sp_xsize : (COLNO - 1),
sy: hasSplevSpan ? game.sp_ysize : ROWNO,
};
}
function isFurnitureOrRock(loc) {
if (!loc) return true;
const typ = loc.typ;
return typ === STONE || typ === FOUNTAIN || typ === THRONE || typ === SINK || typ === ALTAR;
}
function chooseSplevCoord(humidity = 'dry', coord = null) {
if (coord) {
const [x, y] = toAbsCoord(coord);
return isok(x, y) ? { x, y } : null;
}
const bounds = game.currentRoom
? { lx: game.currentRoom.lx, ly: game.currentRoom.ly, hx: game.currentRoom.hx, hy: game.currentRoom.hy }
: currentMapBounds();
const width = Math.max(1, bounds.hx - bounds.lx + 1);
const height = Math.max(1, bounds.hy - bounds.ly + 1);
for (let attempt = 0; attempt < 100; attempt++) {
let x;
let y;
if (game.currentRoom) {
// C ref: sp_lev.c get_location(..., croom) uses somexy(croom, &tmpc),
// and midlog wraps that call in non-mkroom translation units.
const tmp = { x: 0, y: 0 };
pushRngLogEntry('>somexy');
const ok = !!somexy(game.currentRoom, tmp);
pushRngLogEntry(`<somexy=${ok ? 1 : 0}`);
if (!ok) continue;
x = tmp.x;
y = tmp.y;
} else {
x = bounds.lx + rn2(width);
y = bounds.ly + rn2(height);
}
if (!isok(x, y)) continue;
const loc = game.level?.at(x, y);
if (!loc) continue;
if (humidity === 'dry' && isFurnitureOrRock(loc)) continue;
return { x, y };
}
return null;
}
function chooseFilteredCoord(coord, predicate) {
if (coord) {
const [x, y] = toAbsCoord(coord);
return (isok(x, y) && predicate(x, y)) ? { x, y } : null;
}
const bounds = game.currentRoom
? { lx: game.currentRoom.lx, ly: game.currentRoom.ly, hx: game.currentRoom.hx, hy: game.currentRoom.hy }
: currentMapBounds();
const width = Math.max(1, bounds.hx - bounds.lx + 1);
const height = Math.max(1, bounds.hy - bounds.ly + 1);
for (let attempt = 0; attempt < 100; attempt++) {
const x = bounds.lx + rn2(width);
const y = bounds.ly + rn2(height);
if (!isok(x, y)) continue;
if (predicate(x, y)) return { x, y };
}
return null;
}
function randomSelectionCoord() {
const bounds = game.currentRoom
? { lx: game.currentRoom.lx, ly: game.currentRoom.ly, hx: game.currentRoom.hx, hy: game.currentRoom.hy }
: currentMapBounds();
const width = Math.max(1, bounds.hx - bounds.lx + 1);
const height = Math.max(1, bounds.hy - bounds.ly + 1);
return {
x: bounds.lx + rn2(width),
y: bounds.ly + rn2(height),
};
}
function resolveSelectionCoord(x = -1, y = -1) {
if (x === -1 && y === -1) return randomSelectionCoord();
const abs = toAbsCoord([x, y]);
if (!abs) return null;
return { x: abs[0], y: abs[1] };
}
function selectionDoLine(x1, y1, x2, y2, sel) {
let d0, dx, dy, ai, bi, xi, yi;
if (x1 < x2) {
xi = 1;
dx = x2 - x1;
} else {
xi = -1;
dx = x1 - x2;
}
if (y1 < y2) {
yi = 1;
dy = y2 - y1;
} else {
yi = -1;
dy = y1 - y2;
}
sel.setAbsPoint(x1, y1, 1);
if (!dx && !dy) {
return;
} else if (dx > dy) {
ai = (dy - dx) * 2;
bi = dy * 2;
d0 = bi - dx;
do {
if (d0 >= 0) {
y1 += yi;
d0 += ai;
} else {
d0 += bi;
}
x1 += xi;
sel.setAbsPoint(x1, y1, 1);
} while (x1 !== x2);
} else {
ai = (dx - dy) * 2;
bi = dx * 2;
d0 = bi - dy;
do {
if (d0 >= 0) {
x1 += xi;
d0 += ai;
} else {
d0 += bi;
}
y1 += yi;
sel.setAbsPoint(x1, y1, 1);
} while (y1 !== y2);
}
}
function selectionDoRandline(x1, y1, x2, y2, rough, rec, sel) {
if (rec < 1 || (x2 === x1 && y2 === y1)) return;
const span = Math.max(Math.abs(x2 - x1), Math.abs(y2 - y1));
if (rough > span) rough = span;
let mx, my;
if (rough < 2) {
mx = Math.trunc((x1 + x2) / 2);
my = Math.trunc((y1 + y2) / 2);
} else {
do {
const dx = rn2(rough) - Math.trunc(rough / 2);
const dy = rn2(rough) - Math.trunc(rough / 2);
mx = Math.trunc((x1 + x2) / 2) + dx;
my = Math.trunc((y1 + y2) / 2) + dy;
} while (mx > COLNO - 1 || mx < 0 || my < 0 || my > ROWNO - 1);
}
if (!sel.points.some((pt) => pt.x === mx && pt.y === my)) {
sel.setAbsPoint(mx, my, 1);
}
rough = Math.trunc((rough * 2) / 3);
rec--;
selectionDoRandline(x1, y1, mx, my, rough, rec, sel);
selectionDoRandline(mx, my, x2, y2, rough, rec, sel);
sel.setAbsPoint(x2, y2, 1);
}
function selectionDoEllipse(sel, xc, yc, a, b, filled) {
let x = 0;
let y = b;
const a2 = a * a;
const b2 = b * b;
const crit1 = -(Math.trunc(a2 / 4) + (a % 2) + b2);
const crit2 = -(Math.trunc(b2 / 4) + (b % 2) + a2);
const crit3 = -(Math.trunc(b2 / 4) + (b % 2));
let t = -a2 * y;
let dxt = 2 * b2 * x;
let dyt = -2 * a2 * y;
const d2xt = 2 * b2;
const d2yt = 2 * a2;
let width = 1;
filled = !filled;
if (!filled) {
while (y >= 0 && x <= a) {
sel.setAbsPoint(xc + x, yc + y, 1);
if (x !== 0 || y !== 0) sel.setAbsPoint(xc - x, yc - y, 1);
if (x !== 0 && y !== 0) {
sel.setAbsPoint(xc + x, yc - y, 1);
sel.setAbsPoint(xc - x, yc + y, 1);
}
if (t + b2 * x <= crit1 || t + a2 * y <= crit3) {
x++;
dxt += d2xt;
t += dxt;
} else if (t - a2 * y > crit2) {
y--;
dyt += d2yt;
t += dyt;
} else {
x++;
dxt += d2xt;
t += dxt;
y--;
dyt += d2yt;
t += dyt;
}
}
} else {
while (y >= 0 && x <= a) {
if (t + b2 * x <= crit1 || t + a2 * y <= crit3) {
x++;
dxt += d2xt;
t += dxt;
width += 2;
} else if (t - a2 * y > crit2) {
for (let i = 0; i < width; i++) sel.setAbsPoint(xc - x + i, yc - y, 1);
if (y !== 0) {
for (let i = 0; i < width; i++) sel.setAbsPoint(xc - x + i, yc + y, 1);
}
y--;
dyt += d2yt;
t += dyt;
} else {
for (let i = 0; i < width; i++) sel.setAbsPoint(xc - x + i, yc - y, 1);
if (y !== 0) {
for (let i = 0; i < width; i++) sel.setAbsPoint(xc - x + i, yc + y, 1);
}
x++;
dxt += d2xt;
t += dxt;
y--;
dyt += d2yt;
t += dyt;
width += 2;
}
}
}
}
function withCurrentRoom(rm, fn) {
const prev = game.currentRoom;
const coder = ensureDesCoder();
const prevCoderRoom = coder.croom ?? null;
game.currentRoom = rm;
coder.croom = rm ?? null;
try {
const out = fn();
if (out && typeof out.then === 'function') {
return out.finally(() => {
game.currentRoom = prev;
coder.croom = prevCoderRoom;
});
}
game.currentRoom = prev;
coder.croom = prevCoderRoom;
return out;
} catch (err) {
game.currentRoom = prev;
coder.croom = prevCoderRoom;
throw err;
} finally {
// Async callbacks restore _currentRoom in Promise.finally() above.
}
}
function noncoalignment(alignment) {
const k = rn2(2);
if (!alignment) return k ? A_CHAOTIC : A_LAWFUL;
return k ? -alignment : A_NEUTRAL;
}
function isSpecialLevel(lev = game.u?.uz) {
if (!lev) return null;
let slev = game.sp_levchn;
while (slev) {
const d = slev.dlevel;
if (d && d.dnum === lev.dnum && d.dlevel === lev.dlevel) return slev;
slev = slev.next;
}
return null;
}
function inducedAlign(pct) {
const lev = isSpecialLevel(game.u?.uz);
// C uses Is_special(&u.uz)->flags.align first. Tutorial flow can run level
// scripts outside the normal special-level chain but still sets the same
// effective alignment in game.special_level_align.
const levAlign = (lev?.flags?.align || (game.special_level_align ?? 0));
if (levAlign && rn2(100) < pct) return levAlign;
const dnum = game.u?.uz?.dnum ?? 0;
const dungeonAlign = game.dungeons?.[dnum]?.flags?.align ?? 0;
if (dungeonAlign && rn2(100) < pct) return dungeonAlign;
return Align2amask(rn2(3) - 1);
}
function spAmaskToAmask(spAmask) {
if (spAmask === AM_SPLEV_CO) return Align2amask(game.u?.ualignbase?.[0] ?? A_NONE);
if (spAmask === AM_SPLEV_NONCO) return Align2amask(noncoalignment(game.u?.ualignbase?.[0] ?? A_NONE));
if (spAmask === AM_SPLEV_RANDOM) {
return inducedAlign(80) & AM_MASK;
}
return spAmask & AM_MASK;
}
function addDoorToRoom(x, y, room) {
if (!room || room.hx < 0) return;
if (!game.level.doors) game.level.doors = [];
for (let i = 0; i < room.doorct; i++) {
const d = game.level.doors[room.fdoor + i];
if (d && d.x === x && d.y === y) return;
}
if (room.doorct === 0) room.fdoor = game.level.doorindex || 0;
room.doorct++;
const ins = room.fdoor || 0;
const doorindex = game.level.doorindex || 0;
// C ref: mklev.c:add_door() insertion semantics used by link_doors_rooms().
for (let tmp = doorindex; tmp > ins; tmp--) {
game.level.doors[tmp] = game.level.doors[tmp - 1];
}
for (const broom of game.level.rooms || []) {
if (!broom || broom.hx <= 0 || broom === room || !(broom.doorct > 0)) continue;
if ((broom.fdoor ?? 0) >= ins) broom.fdoor++;
}
for (const prow of game.level.rooms || []) {
if (!prow || prow.hx <= 0) continue;
for (let m = 0; m < (prow.nsubrooms || 0); m++) {
const broom = prow.sbrooms?.[m];
if (!broom || broom === room || !(broom.doorct > 0)) continue;
if ((broom.fdoor ?? 0) >= ins) broom.fdoor++;
}
}
game.level.doors[ins] = { x, y };
game.level.doorindex = doorindex + 1;
}
function sharedWithRoom(x, y, room) {
const rmno = (room.roomnoidx ?? -1) + ROOMOFFSET;
if (!isok(x, y)) return false;
if ((game.level?.at(x, y)?.roomno ?? 0) === rmno && !game.level?.at(x, y)?.edge) return false;
if (isok(x - 1, y)) {
const loc = game.level?.at(x - 1, y);
if (loc && loc.roomno === rmno && x - 1 <= room.hx) return true;
}
if (isok(x + 1, y)) {
const loc = game.level?.at(x + 1, y);
if (loc && loc.roomno === rmno && x + 1 >= room.lx) return true;
}
if (isok(x, y - 1)) {
const loc = game.level?.at(x, y - 1);
if (loc && loc.roomno === rmno && y - 1 <= room.hy) return true;
}
if (isok(x, y + 1)) {
const loc = game.level?.at(x, y + 1);
if (loc && loc.roomno === rmno && y + 1 >= room.ly) return true;
}
return false;
}
function maybeAddDoor(x, y, room) {
const rmno = (room.roomnoidx ?? -1) + ROOMOFFSET;
const loc = game.level?.at(x, y);
if (!room || room.hx < 0 || !loc) return;
const inRect = x >= room.lx && x <= room.hx && y >= room.ly && y <= room.hy;
if ((!room.irregular && inRect) || loc.roomno === rmno || sharedWithRoom(x, y, room)) {
addDoorToRoom(x, y, room);
}
}
function addDoorsToRoom(room) {
if (!room || !game.level) return;
for (let x = room.lx - 1; x <= room.hx + 1; x++) {
for (let y = room.ly - 1; y <= room.hy + 1; y++) {
const loc = game.level.at(x, y);
if (loc && (IS_DOOR(loc.typ) || loc.typ === SDOOR)) maybeAddDoor(x, y, room);
}
}
for (const subroom of room.sbrooms || []) addDoorsToRoom(subroom);
}
function linkDoorsRooms() {
const level = game.level;
if (!level) return;
const roomCount = level.nroom ?? 0;
for (let y = 0; y < ROWNO; y++) {
for (let x = 0; x < COLNO; x++) {
const loc = level.at(x, y);
if (!loc || (!IS_DOOR(loc.typ) && loc.typ !== SDOOR)) continue;
// C ref: sp_lev.c link_doors_rooms() sets orientation for
// MAP '+/S' tiles that don't go through explicit door directives.
setDoorOrientation(x, y);
for (let i = 0; i < roomCount; i++) {
const room = level.rooms?.[i];
if (!room) continue;
maybeAddDoor(x, y, room);
for (const subroom of room.sbrooms || []) {
maybeAddDoor(x, y, subroom);
}
}
}
}
}
function rnddoor() {
const states = [D_NODOOR, D_BROKEN, D_ISOPEN, D_CLOSED, D_LOCKED];
return states[rn2(states.length)];
}
function setDoorOrientation(x, y) {
const doorJoin = (nx, ny) => {
if (!isok(nx, ny)) return true;
const loc = game.level?.at(nx, ny);
return !!(loc && (IS_OBSTRUCTED(loc.typ) || loc.typ === IRONBARS));
};
const adjDoorish = (nx, ny) => {
if (!isok(nx, ny)) return false;
const loc = game.level?.at(nx, ny);
return !!(loc && (IS_WALL(loc.typ) || IS_DOOR(loc.typ) || loc.typ === SDOOR));
};
let wleft = adjDoorish(x - 1, y);
let wright = adjDoorish(x + 1, y);
let wup = adjDoorish(x, y - 1);
let wdown = adjDoorish(x, y + 1);
if (!wleft && !wright && !wup && !wdown) {
wleft = doorJoin(x - 1, y);
wright = doorJoin(x + 1, y);
wup = doorJoin(x, y - 1);
wdown = doorJoin(x, y + 1);
}
const loc = game.level?.at(x, y);
if (loc) loc.horizontal = ((wleft || wright) && !(wup && wdown)) ? 1 : 0;
}
function selSetDoor(x, y, typ) {
const loc = game.level?.at(x, y);
if (!loc) return;
if (!IS_DOOR(loc.typ) && loc.typ !== SDOOR) loc.typ = (typ & D_SECRET) ? SDOOR : DOOR;
if (typ & D_SECRET) {
typ &= ~D_SECRET;
if (typ < D_CLOSED) typ = D_CLOSED;
}
setDoorOrientation(x, y);
loc.flags = typ;
markSpLevMap(x, y);
}
function createDoor(dd, room) {
if (!room) return null;
let x = 0;
let y = 0;
if (dd.secret === -1) dd.secret = rn2(2);
if (dd.wall === W_RANDOM) dd.wall = W_ANY;
if (dd.mask === -1) {
if (!dd.secret) {
if (!rn2(3)) {
if (!rn2(5)) dd.mask = D_ISOPEN;
else if (!rn2(6)) dd.mask = D_LOCKED;
else dd.mask = D_CLOSED;
if (dd.mask !== D_ISOPEN && !rn2(25)) dd.mask |= D_TRAPPED;
} else {
dd.mask = D_NODOOR;
}
} else {
dd.mask = !rn2(5) ? D_LOCKED : D_CLOSED;
if (!rn2(20)) dd.mask |= D_TRAPPED;
}
}
for (let trycnt = 0; trycnt < 100; ++trycnt) {
const dwall = dd.wall;
const dpos = dd.pos;
switch (rn2(4)) {
case 0:
if (!(dwall & W_NORTH)) continue;
y = room.ly - 1;
x = room.lx + (dpos === -1 ? rn2(1 + room.hx - room.lx) : dpos);
if (!isok(x, y - 1) || IS_OBSTRUCTED(game.level?.at(x, y - 1)?.typ)) continue;
break;
case 1:
if (!(dwall & W_SOUTH)) continue;
y = room.hy + 1;
x = room.lx + (dpos === -1 ? rn2(1 + room.hx - room.lx) : dpos);
if (!isok(x, y + 1) || IS_OBSTRUCTED(game.level?.at(x, y + 1)?.typ)) continue;
break;
case 2:
if (!(dwall & W_WEST)) continue;
x = room.lx - 1;
y = room.ly + (dpos === -1 ? rn2(1 + room.hy - room.ly) : dpos);
if (!isok(x - 1, y) || IS_OBSTRUCTED(game.level?.at(x - 1, y)?.typ)) continue;
break;
case 3:
if (!(dwall & W_EAST)) continue;
x = room.hx + 1;
y = room.ly + (dpos === -1 ? rn2(1 + room.hy - room.ly) : dpos);
if (!isok(x + 1, y) || IS_OBSTRUCTED(game.level?.at(x + 1, y)?.typ)) continue;
break;
}
if (!game.level?.at(x, y)) continue;
if (!isok(x, y)) continue;
if (!(game.level.at(x, y).typ === HWALL || game.level.at(x, y).typ === VWALL) && !IS_DOOR(game.level.at(x, y).typ) && game.level.at(x, y).typ !== SDOOR) continue;
const bydoor = [
[1, 0], [-1, 0], [0, 1], [0, -1],
].some(([dx, dy]) => {
const adj = game.level?.at(x + dx, y + dy);
return !!(adj && (IS_DOOR(adj.typ) || adj.typ === SDOOR));
});
if (bydoor) continue;
const loc = game.level.at(x, y);
loc.typ = dd.secret ? SDOOR : DOOR;
loc.flags = dd.mask;
return { x, y };
}
return null;
}
function getTableAlign(align) {
if (typeof align === 'number') return Align2amask(align);
switch (String(align || 'random').toLowerCase()) {
case 'chaos':
case 'chaotic':
return Align2amask(A_CHAOTIC);
case 'neutral':
return Align2amask(A_NEUTRAL);
case 'law':
case 'lawful':
return Align2amask(A_LAWFUL);
case 'noalign':
case 'unaligned':
return Align2amask(A_NONE);
case 'coaligned':
return AM_SPLEV_CO;
case 'noncoaligned':
return AM_SPLEV_NONCO;
case 'random':
default:
return AM_SPLEV_RANDOM;
}
}
// ── des.* API for special levels ──
// C ref: sp_lev.c — these functions are called by Lua level scripts
// (converted to JS in js/levels/*.js).
// tracks squeaky board traps for choose_trapnote
function resetXyStartSize() {
// C ref: sp_lev.c reset_xystart_size()
game.sp_xstart = 1;
game.sp_ystart = 0;
game.sp_xsize = COLNO - 1;
game.sp_ysize = ROWNO;
}
export function reset_des_coder() {
game.des_coder = null;
game.splev_init_present = false;
game.icedpools = false;
resetXyStartSize();
game.sp_lev_map = Array.from({ length: COLNO }, () => Array(ROWNO).fill(0));
game.sqkyBoardCount = 0;
game.currentRoom = null;
}
function ensureDesCoder() {
if (!game.des_coder) {
game.des_coder = {
premapped: false,
solidify: false,
check_inaccessibles: false,
allow_flips: 3,
finalized: false,
croom: null,
n_subroom: 1,
lvl_is_joined: false,
room_stack: 0,
tmproomlist: Array(MAX_NESTED_ROOMS + 1).fill(null),
failed_room: Array(MAX_NESTED_ROOMS + 1).fill(false),
};
game.splev_init_present = false;
game.icedpools = false;
resetXyStartSize();
if (!game.sp_lev_map) {
game.sp_lev_map = Array.from({ length: COLNO }, () => Array(ROWNO).fill(0));
}
}
return game.des_coder;
}
function updateCroom() {
const coder = game.des_coder;
if (!coder) return;
coder.croom = coder.n_subroom ? (coder.tmproomlist[coder.n_subroom - 1] ?? null) : null;
}
function spoEndroom(coder) {
if (!coder) return;
if (coder.n_subroom > 1) {
coder.n_subroom--;
coder.tmproomlist[coder.n_subroom] = null;
coder.failed_room[coder.n_subroom] = true;
}
updateCroom();
}
const ROOM_XALIGN = {
left: 1,
'half-left': 2,
center: 3,
'half-right': 4,
right: 5,
none: -1,
random: -1,
};
const ROOM_YALIGN = {
top: 1,
center: 3,
bottom: 5,
none: -1,
random: -1,
};
const ROOM_TYPES = {
ordinary: OROOM,
themed: THEMEROOM,
throne: COURT,
swamp: SWAMP,
vault: VAULT,
beehive: BEEHIVE,
morgue: MORGUE,
barracks: BARRACKS,
zoo: ZOO,
delphi: DELPHI,
temple: TEMPLE,
anthole: ANTHOLE,
cocknest: COCKNEST,
leprehall: LEPREHALL,
shop: SHOPBASE,
'armor shop': ARMORSHOP,
'scroll shop': SCROLLSHOP,
'potion shop': POTIONSHOP,
'weapon shop': WEAPONSHOP,
'food shop': FOODSHOP,
'ring shop': RINGSHOP,
'wand shop': WANDSHOP,
'tool shop': TOOLSHOP,
'book shop': BOOKSHOP,
'health food shop': FODDERSHOP,
'candle shop': CANDLESHOP,
};
function getRoomTypeOpt(type) {
if (type == null) return OROOM;
return ROOM_TYPES[String(type).toLowerCase()] ?? OROOM;
}
function buildRoom(roomSpec, parentRoom) {
const rtype = (!roomSpec.chance || rn2(100) < roomSpec.chance) ? roomSpec.rtype : OROOM;
let okroom = false;
let aroom = null;
if (parentRoom) {
okroom = create_subroom(
parentRoom,
roomSpec.x,
roomSpec.y,
roomSpec.w,
roomSpec.h,
rtype,
roomSpec.rlit,
);
if (okroom) {
aroom = game.subrooms?.[game.subrooms.length - 1] ?? null;
}
} else {
okroom = create_room(
roomSpec.x,
roomSpec.y,
roomSpec.w,
roomSpec.h,
roomSpec.xalign,
roomSpec.yalign,
rtype,
roomSpec.rlit,
true,
);
if (okroom) {
aroom = game.level.rooms?.[(game.level.nroom ?? 1) - 1] ?? null;
}
}
if (okroom && aroom) {
topologize(aroom);
aroom.needfill = roomSpec.needfill;
aroom.needjoining = roomSpec.joined;
return aroom;
}
return null;
}
function markSpLevMap(x, y) {
if (!isok(x, y)) return;
if (!game.sp_lev_map) {
game.sp_lev_map = Array.from({ length: COLNO }, () => Array(ROWNO).fill(0));
}
game.sp_lev_map[x][y] = 1;
}
function clampInt(v, lo, hi) {
if (v < lo) return lo;
if (v > hi) return hi;
return v;
}
function lvlfill_maze_grid(x1, y1, x2, y2, filling) {
const level = game.level;
if (!level) return;
for (let x = x1; x <= x2; x++) {
for (let y = y1; y <= y2; y++) {
const loc = level.at(x, y);
if (!loc) continue;
if (level.flags?.corrmaze) {
loc.typ = STONE;
} else {
loc.typ = (y < 2 || ((x % 2) && (y % 2))) ? STONE : filling;
}
loc.flags = 0;
loc.horizontal = 0;
loc.roomno = 0;
loc.edge = 0;
}
}
}
function setLevlTypLit(x, y, typ, lit) {
const loc = game.level?.at(x, y);
if (!loc) return false;
if (!set_levltyp(x, y, typ)) return false;
if (lit !== SET_LIT_NOCHANGE) {
let litstate = lit;
if (IS_LAVA(typ)) litstate = 1;
else if (litstate === -1) litstate = rn2(2);
loc.lit = !!litstate;
loc.waslit = !!loc.lit;
}
return true;
}
function lvlfill_swamp(fg, bg, lit) {
const xMax = game.x_maze_max ?? ((COLNO - 1) & ~1);
const yMax = game.y_maze_max ?? ((ROWNO - 1) & ~1);
lvlfill_solid(bg, lit);
for (let x = 2; x <= Math.min(xMax, COLNO - 2); x += 2) {
for (let y = 0; y <= Math.min(yMax, ROWNO - 2); y += 2) {
let c = 0;
setLevlTypLit(x, y, fg, lit);
if (game.level?.at(x + 1, y)?.typ === bg) c++;
if (game.level?.at(x, y + 1)?.typ === bg) c++;
if (game.level?.at(x + 1, y + 1)?.typ === bg) c++;
if (c === 3) {
switch (rn2(3)) {
case 0:
setLevlTypLit(x + 1, y, fg, lit);
break;
case 1:
setLevlTypLit(x, y + 1, fg, lit);
break;
case 2:
setLevlTypLit(x + 1, y + 1, fg, lit);
break;
default:
break;
}
}
}
}
}
function createMaze(corrwid, wallthick, rmdeadends) {
const map = game.level;
if (!map) return;
const defaultXMax = (COLNO - 1) & ~1;
const defaultYMax = (ROWNO - 1) & ~1;
const tmpXMax = game.x_maze_max ?? defaultXMax;
const tmpYMax = game.y_maze_max ?? defaultYMax;
let cw = Number.isFinite(corrwid) ? corrwid : -1;
let wt = Number.isFinite(wallthick) ? wallthick : -1;
if (cw === -1) cw = rnd(4);
if (wt === -1) wt = rnd(4) - cw;
cw = clampInt(cw, 1, 5);
wt = clampInt(wt, 1, 5);
const scale = cw + wt;
const rdx = Math.trunc(tmpXMax / scale);
const rdy = Math.trunc(tmpYMax / scale);
if (map.flags?.corrmaze) {
for (let x = 2; x < (rdx * 2); x++) {
for (let y = 2; y < (rdy * 2); y++) {
const loc = map.at(x, y);
if (loc) loc.typ = STONE;
}
}
} else {
for (let x = 2; x <= (rdx * 2); x++) {
for (let y = 2; y <= (rdy * 2); y++) {
const loc = map.at(x, y);
if (!loc) continue;
loc.typ = ((x % 2) && (y % 2)) ? STONE : HWALL;
}
}
}
game.x_maze_max = rdx * 2;
game.y_maze_max = rdy * 2;
try {
const xChoices = (game.x_maze_max >> 1) - 1;
const yChoices = (game.y_maze_max >> 1) - 1;
const mx = 3 + 2 * rn2(xChoices);
const my = 3 + 2 * rn2(yChoices);
walkfrom(mx, my, 0);
// C ref: mkmaze.c:997-998 — remove dead ends after maze carving
if (rmdeadends)
maze_remove_deadends(game.level?.flags?.corrmaze ? CORR : ROOM);
} finally {
game.x_maze_max = tmpXMax;
game.y_maze_max = tmpYMax;
}
if (scale > 2) {
const src = Array.from({ length: COLNO }, () => Array(ROWNO).fill(STONE));
for (let x = 1; x < tmpXMax; x++) {
for (let y = 1; y < tmpYMax; y++) {
src[x][y] = map.at(x, y)?.typ ?? STONE;
}
}
let rx = 2;
let x = 2;
while (rx < tmpXMax) {
const mx = (x % 2) ? cw : ((x === 2 || x === rdx * 2) ? 1 : wt);
let ry = 2;
let y = 2;
while (ry < tmpYMax) {
const my = (y % 2) ? cw : ((y === 2 || y === rdy * 2) ? 1 : wt);
for (let dx = 0; dx < mx; dx++) {
for (let dy = 0; dy < my; dy++) {
if (rx + dx >= tmpXMax || ry + dy >= tmpYMax) break;
const loc = map.at(rx + dx, ry + dy);
if (loc) loc.typ = src[x][y];
}
}
ry += my;
y++;
}
rx += mx;
x++;
}
}
}
// des.level_init — C ref: sp_lev.c:5989 lspo_level_init()
export function level_init(args = {}) {
const coder = ensureDesCoder();
game.splev_init_present = true;
const style = String(args.style || 'solidfill').toLowerCase();
const lit = args.lit;
const bgArg = args.bg;
const corrwid = Number.isFinite(args.corrwid) ? args.corrwid : -1;
const wallthick = Number.isFinite(args.wallthick) ? args.wallthick : -1;
// C: rm_deadends = !get_table_boolean_opt("deadends", TRUE)
// Default is TRUE (keep dead ends), so rm_deadends defaults to FALSE.
// Only rm_deadends when deadends is explicitly set to false/0.
const deadendsOpt = args.deadends ?? true; // default: keep dead ends
const rmdeadends = !deadendsOpt;
const joined = !!args.joined;
coder.lvl_is_joined = joined;
const litRandom = (lit == null || lit === 'random' || lit === -1);
// C ref: splev_initlev() ALWAYS consumes rn2(2) for solidfill when
// lit is BOOL_RANDOM (sp_lev.c:2991-2992). The initial dungeon level
// doesn't call level_init (it uses makelevel without a level script),
// so this code only runs for special levels which always need rn2(2).
if (style === 'solidfill') {
// C ref: splev_initlev LVLINIT_SOLIDFILL
let solidLit = litRandom ? -1 : (lit ? 1 : 0);
if (litRandom) {
solidLit = rn2(2);
}
// Parse fg for solidfill
let solidFg = ROOM; // default fg
if (typeof args.fg === 'string' && args.fg.length > 0) {
const parsed = splev_chr2typ(args.fg[0]);
if (parsed >= 0) solidFg = parsed;
}
lvlfill_solid(solidFg, solidLit);
}
let bg = STONE;
if (typeof bgArg === 'string' && bgArg.length > 0) {
const parsed = splev_chr2typ(bgArg[0]);
if (parsed >= 0 && parsed < MAX_TYPE) bg = parsed;
}
// C ref: splev_initlev() — style="maze"
if (style === 'mazegrid') {
const xMazeMax = game.x_maze_max ?? ((COLNO - 1) & ~1);
const yMazeMax = game.y_maze_max ?? ((ROWNO - 1) & ~1);
lvlfill_maze_grid(2, 0, xMazeMax, yMazeMax, bg);
} else if (style === 'maze') {
createMaze(corrwid, wallthick, rmdeadends);
} else if (style === 'swamp') {
let swampLit = litRandom ? rn2(2) : (lit ? 1 : 0);
let swampFg = ROOM;
if (typeof args.fg === 'string' && args.fg.length > 0) {
const parsed = splev_chr2typ(args.fg[0]);
if (parsed >= 0 && parsed < MAX_TYPE) swampFg = parsed;
}
let swampBg = MOAT;
if (typeof bgArg === 'string' && bgArg.length > 0) {
const parsed = splev_chr2typ(bgArg[0]);
if (parsed >= 0 && parsed < MAX_TYPE) swampBg = parsed;
}
lvlfill_swamp(swampFg, swampBg, swampLit);
} else if (style === 'mines') {
// C ref: sp_lev.c LVLINIT_MINES case
// C: if lit is random, consume rn2(2)
const mineLit = litRandom ? rn2(2) : (lit ? 1 : 0);
// Parse fg terrain
let fg = ROOM; // C default: fg = ROOM (get_table_mapchr_opt "fg" default)
if (typeof args.fg === 'string' && args.fg.length > 0) {
const parsed = splev_chr2typ(args.fg[0]);
if (parsed >= 0) fg = parsed;
}
// C: filling defaults to fg. If filling > -1, fill map first.
const filling = (typeof args.filling === 'string' && args.filling.length > 0)
? splev_chr2typ(args.filling[0]) : fg;
if (filling > -1) {
lvlfill_solid(filling, 0);
}
mkmap({
bg, fg, smoothed: !!args.smoothed, joined: !!args.joined,
lit: mineLit, walled: !!args.walled, icedpools: false,
});
}
}
// C ref: sp_lev.c lvlfill_solid — fill map area with terrain type
function lvlfill_solid(filling, lit) {
const map = game.level;
const xMax = game.x_maze_max ?? ((COLNO - 1) & ~1);
const yMax = game.y_maze_max ?? ((ROWNO - 1) & ~1);
for (let x = 2; x <= xMax; x++) {
for (let y = 0; y <= yMax; y++) {
const loc = map.at(x, y);
if (!loc) continue;
setLevlTypLit(x, y, filling, lit);
loc.flags = 0;
loc.horizontal = false;
loc.roomno = 0;
loc.edge = false;
}
}
}
function inEndgame() {
return game.u?.uz?.dnum === game.astral_level?.dnum;
}
function isMedusaLevel() {
const medusa = game.medusa_level;
const uz = game.u?.uz;
return !!medusa && !!uz
&& medusa.dnum === uz.dnum
&& medusa.dlevel === uz.dlevel;
}
function isBaalzLevel() {
const baalz = game.baalzebub_level;
const uz = game.u?.uz;
return !!baalz && !!uz
&& baalz.dnum === uz.dnum
&& baalz.dlevel === uz.dlevel;
}
function withinArea(x, y, area) {
return !!area
&& x >= area.x1 && x <= area.x2
&& y >= area.y1 && y <= area.y2;
}
function baalzFixupMinimal() {
const level = game.level;
if (!level) return;
const inarea = { x1: COLNO, y1: ROWNO, x2: 0, y2: 0 };
const delarea = { x1: COLNO, y1: ROWNO, x2: 0, y2: 0 };
const hasNondiggable = (loc) => (((loc?.wall_info ?? 0) & W_NONDIGGABLE) !== 0);
const clearNondiggable = (loc) => {
if (!loc) return;
loc.wall_info &= ~W_NONDIGGABLE;
};
const midY = Math.trunc(ROWNO / 2);
let lastx = 0;
let x = 0;
for (x = 0; x < COLNO; ++x) {
if (hasNondiggable(level.at(x, midY))) {
if (!lastx) inarea.x1 = x + 1;
lastx = x;
}
}
inarea.x2 = ((lastx > inarea.x1) ? lastx : x) - 1;
const anchorX = inarea.x1;
let lasty = 0;
let y = 0;
for (y = 0; y < ROWNO; ++y) {
if (hasNondiggable(level.at(anchorX, y))) {
if (!lasty) inarea.y1 = y + 1;
lasty = y;
}
}
inarea.y2 = ((lasty > inarea.y1) ? lasty : y) - 1;
for (x = inarea.x1; x <= inarea.x2; ++x) {
for (y = inarea.y1; y <= inarea.y2; ++y) {
const loc = level.at(x, y);
if (!loc) continue;
if (loc.typ === POOL) {
loc.typ = HWALL;
if (delarea.x1 === COLNO) {
delarea.x1 = x;
delarea.y1 = y;
} else {
delarea.x2 = x;
delarea.y2 = y;
}
} else if (loc.typ === IRONBARS) {
if (isok(x - 1, y) && hasNondiggable(level.at(x - 1, y))) {
clearNondiggable(level.at(x - 1, y));
if (isok(x - 2, y)) clearNondiggable(level.at(x - 2, y));
} else if (isok(x + 1, y) && hasNondiggable(level.at(x + 1, y))) {
clearNondiggable(level.at(x + 1, y));
if (isok(x + 2, y)) clearNondiggable(level.at(x + 2, y));
}
}
}
}
wall_cleanup_protected(
Math.max(inarea.x1 - 2, 1),
Math.max(inarea.y1 - 2, 0),
Math.min(inarea.x2 + 2, COLNO - 1),
Math.min(inarea.y2 + 2, ROWNO - 1),
inarea
);
fix_wall_spines(
Math.max(inarea.x1 - 2, 1),
Math.max(inarea.y1 - 2, 0),
Math.min(inarea.x2 + 2, COLNO - 1),
Math.min(inarea.y2 + 2, ROWNO - 1),
inarea
);
x = delarea.x1;
y = delarea.y1;
if (isok(x, y)
&& (level.at(x, y)?.typ === TLWALL || level.at(x, y)?.typ === TRWALL)
&& isok(x, y + 1) && level.at(x, y + 1)?.typ === TUWALL) {
level.at(x, y).typ = (level.at(x, y).typ === TLWALL) ? BRCORNER : BLCORNER;
level.at(x, y + 1).typ = HWALL;
const mtmp = m_at(x, y);
if (mtmp && !rloc_mkmaze(mtmp)) {
mtmp.mx = 0;
mtmp.my = 0;
}
}
x = delarea.x2;
y = delarea.y2;
if (isok(x, y)
&& (level.at(x, y)?.typ === TLWALL || level.at(x, y)?.typ === TRWALL)
&& isok(x, y - 1) && level.at(x, y - 1)?.typ === TDWALL) {
level.at(x, y).typ = (level.at(x, y).typ === TLWALL) ? TRCORNER : TLCORNER;
level.at(x, y - 1).typ = HWALL;
const mtmp = m_at(x, y);
if (mtmp && !rloc_mkmaze(mtmp)) {
mtmp.mx = 0;
mtmp.my = 0;
}
}
}
function unlinkMonster(mon) {
if (game.level) game.level.removeMonster(mon);
if (game.fmon === mon) {
game.fmon = mon.nmon || null;
} else {
for (let prev = game.fmon; prev; prev = prev.nmon) {
if (prev.nmon === mon) {
prev.nmon = mon.nmon || null;
break;
}
}
}
mon.dead = true;
}
function isOkLocation(x, y, humidity) {
// C ref: sp_lev.c is_ok_location — accept any spot on Water level
if (Is_waterlevel(game.u?.uz)) return true;
const loc = game.level?.at(x, y);
if (!loc) return false;
const typ = loc.typ;
if (humidity & ANY_LOC) {
return true;
}
if ((humidity & SOLID) && IS_OBSTRUCTED(typ)) {
return true;
}
if ((humidity & (DRY | SPACELOC)) && SPACE_POS(typ)) {
const boulder = !!sobj_at(BOULDER, x, y);
if (!boulder || (humidity & SOLID)) return true;
}
if ((humidity & WET) && is_pool(x, y)) {
return true;
}
if ((humidity & HOT) && is_lava(x, y)) {
return true;
}
return false;
}
function pmToHumidityFlags(pm) {
let loc = DRY;
if (!pm) return loc;
if (pm.mlet === S_EEL || is_amphibious(pm) || is_swimmer(pm))
loc = WET;
if (is_flyer(pm) || is_floater(pm))
loc |= (HOT | WET);
if (passes_walls(pm) || noncorporeal(pm))
loc |= SOLID;
if (likes_fire(pm))
loc |= HOT;
return loc;
}
// C ref: sp_lev.c:get_location_coord() for random coords.
// For random packed coords, get_location_coord can invoke get_location() twice
// before returning failure. In JS, randomLocationWithHumidity() models one
// get_location() pass, so we explicitly perform the second pass here.
function randomLocationCoordLikeC(humidity, croom) {
let pos = randomLocationWithHumidity(humidity, croom, true);
if (!pos) {
pos = randomLocationWithHumidity(humidity, croom, false);
}
return pos;
}
function randomLocationWithHumidity(humidity, croom, allowFail) {
const debugGetloc = typeof process !== 'undefined'
&& process?.env?.SPLEV_GETLOC_DEBUG === '1';
const useSomexyLog = !!croom;
if (useSomexyLog) pushRngLogEntry('>somexy');
let mx;
let my;
let sx;
let sy;
if (croom) {
mx = croom.lx;
my = croom.ly;
sx = croom.hx - croom.lx + 1;
sy = croom.hy - croom.ly + 1;
} else {
const span = getLocationSpan();
mx = span.mx;
my = span.my;
sx = span.sx;
sy = span.sy;
}
if (debugGetloc) {
pushRngLogEntry(`^dbg_getloc_span[mx=${mx} my=${my} sx=${sx} sy=${sy} croom=${croom ? 1 : 0} h=${humidity}]`);
}
let x = -1;
let y = -1;
for (let cpt = 0; cpt < 100; cpt++) {
if (croom) {
const tmp = { x: -1, y: -1 };
const ok = !!somexy(croom, tmp);
if (!ok) continue;
x = tmp.x;
y = tmp.y;
} else {
x = mx + rn2(sx);
y = my + rn2(sy);
}
const inBounds = isok(x, y);
const typ = inBounds ? (game.level?.at(x, y)?.typ ?? -1) : -1;
const bould = inBounds ? (sobj_at(BOULDER, x, y) ? 1 : 0) : -1;
let bouldScan = -1;
if (inBounds) {
bouldScan = (game.level?.objects || []).some((obj) => obj?.otyp === BOULDER && obj?.ox === x && obj?.oy === y) ? 1 : 0;
}
const ok = inBounds && isOkLocation(x, y, humidity);
if (debugGetloc) {
pushRngLogEntry(`^dbg_getloc_try[cpt=${cpt} x=${x} y=${y} typ=${typ} b=${bould} bs=${bouldScan} h=${humidity} ok=${ok ? 1 : 0}]`);
}
if (ok) {
if (useSomexyLog) pushRngLogEntry('<somexy=1');
return { x, y };
}
}
// C ref: sp_lev.c:get_location()
// Even with NO_LOC_WARN (allowFail=true), C still performs a deterministic
// full-area "last try" scan before giving up.
for (let xx = 0; xx < sx; xx++) {
for (let yy = 0; yy < sy; yy++) {
x = mx + xx;
y = my + yy;
if (isok(x, y) && isOkLocation(x, y, humidity)) {
if (useSomexyLog) pushRngLogEntry('<somexy=1');
return { x, y };
}
}
}
if (allowFail) {
if (useSomexyLog) pushRngLogEntry('<somexy=0');
return null;
}
if (useSomexyLog) pushRngLogEntry('<somexy=0');
return null;
}
function maze1xy(humidity) {
const xMazeMax = (COLNO - 1) & ~1;
const yMazeMax = (ROWNO - 1) & ~1;
let x = 0;
let y = 0;
let tryct = 2000;
do {
x = rn1(xMazeMax - 3, 3);
y = rn1(yMazeMax - 3, 3);
if (--tryct < 0) break;
} while (!(x % 2) || !(y % 2) || game.sp_lev_map?.[x]?.[y]
|| !isOkLocation(x, y, humidity));
return { x, y };
}
function rndTrapSplev(mktrapflags = MKTRAP_MAZEFLAG) {
const lvl = level_difficulty();
let rtrap;
do {
rtrap = rnd(TRAPNUM - 1);
switch (rtrap) {
case TRAPPED_DOOR:
case TRAPPED_CHEST:
case MAGIC_PORTAL:
case VIBRATING_SQUARE:
rtrap = NO_TRAP;
break;
case ROLLING_BOULDER_TRAP:
case SLP_GAS_TRAP:
if (lvl < 2) rtrap = NO_TRAP;
break;
case LEVEL_TELEP:
if (lvl < 5 || game.level?.flags?.noteleport || Is_knox_level(game.u?.uz)) rtrap = NO_TRAP;
break;
case SPIKED_PIT:
if (lvl < 5) rtrap = NO_TRAP;
break;
case LANDMINE:
if (lvl < 6) rtrap = NO_TRAP;
break;
case WEB:
if (lvl < 7) rtrap = NO_TRAP;
break;
case STATUE_TRAP:
case POLY_TRAP:
if (lvl < 8) rtrap = NO_TRAP;
break;
case FIRE_TRAP:
if (!Inhell()) rtrap = NO_TRAP;
break;
case TELEP_TRAP:
if (game.level?.flags?.noteleport) rtrap = NO_TRAP;
break;
case HOLE:
if (rn2(7)) rtrap = NO_TRAP;
break;
default:
break;
}
} while (rtrap === NO_TRAP);
return rtrap;
}
// C ref: mklev.c:2002 traptype_roguelvl()
function traptypeRogueLevel() {
switch (rn2(7)) {
default:
return BEAR_TRAP; // 0
case 1:
return ARROW_TRAP;
case 2:
return DART_TRAP;
case 3:
return TRAPDOOR;
case 4:
return PIT;
case 5:
return SLP_GAS_TRAP;
case 6:
return RUST_TRAP;
}
}
// C ref: mklev.c:mktrap() trap-kind selection.
function pickMktrapKind(num, mktrapFlags) {
if (num > NO_TRAP && num < TRAPNUM) {
return num;
}
if (Is_rogue_level(game.u?.uz)) {
return traptypeRogueLevel();
}
if (Inhell() && !rn2(5)) {
// Bias fire traps in Gehennom.
return FIRE_TRAP;
}
return rndTrapSplev(mktrapFlags);
}
// C ref: sp_lev.c:1159 rndtrap()
function rndTrapSpecialLevel() {
let rtrap;
do {
rtrap = rnd(TRAPNUM - 1);
switch (rtrap) {
case HOLE: /* no random holes on special levels */
case VIBRATING_SQUARE:
case MAGIC_PORTAL:
rtrap = NO_TRAP;
break;
case TRAPDOOR:
if (!Can_dig_down(game.u?.uz))
rtrap = NO_TRAP;
break;
case LEVEL_TELEP:
case TELEP_TRAP:
if (game.level?.flags?.noteleport)
rtrap = NO_TRAP;
break;
case ROLLING_BOULDER_TRAP:
case ROCKTRAP:
if (inEndgame())
rtrap = NO_TRAP;
break;
default:
break;
}
} while (rtrap === NO_TRAP);
return rtrap;
}
async function fillEmptyMaze() {
const xMazeMax = (COLNO - 1) & ~1;
const yMazeMax = (ROWNO - 1) & ~1;
let mapcountmax = (xMazeMax - 2) * (yMazeMax - 2);
let mapcount = mapcountmax;
mapcountmax = Math.trunc(mapcountmax / 2);
for (let x = 2; x < xMazeMax; x++) {
for (let y = 0; y < yMazeMax; y++) {
if (game.sp_lev_map?.[x]?.[y]) mapcount--;
}
}
if (mapcount <= Math.trunc(mapcountmax / 10)) return;
const mapfact = Math.trunc((mapcount * 100) / mapcountmax);
for (let x = rnd(Math.trunc((20 * mapfact) / 100)); x; x--) {
const mm = maze1xy(DRY);
mkobj_at(rn2(2) ? GEM_CLASS : RANDOM_CLASS, mm.x, mm.y, true);
}
for (let x = rnd(Math.trunc((12 * mapfact) / 100)); x; x--) {
const mm = maze1xy(DRY);
const ttmp = t_at(mm.x, mm.y);
if (ttmp && (is_pit(ttmp.ttyp) || is_hole(ttmp.ttyp))) continue;
mksobj_at(BOULDER, mm.x, mm.y, true, false);
}
for (let x = rn2(2); x; x--) {
const mm = maze1xy(DRY);
await makemon(mons[PM_MINOTAUR], mm.x, mm.y, 0);
}
for (let x = rnd(Math.trunc((12 * mapfact) / 100)); x; x--) {
const mm = maze1xy(DRY);
await makemon(null, mm.x, mm.y, 0);
}
for (let x = rn2(Math.trunc((15 * mapfact) / 100)); x; x--) {
const mm = maze1xy(DRY);
mkgold(0, mm.x, mm.y);
}
for (let x = rn2(Math.trunc((15 * mapfact) / 100)); x; x--) {
const mm = maze1xy(DRY);
let trytrap = rndTrapSpecialLevel();
if (sobj_at(BOULDER, mm.x, mm.y)) {
while (is_pit(trytrap) || is_hole(trytrap)) {
trytrap = rndTrapSpecialLevel();
}
}
await maketrap(mm.x, mm.y, trytrap);
}
}
// des.mazewalk — C ref: sp_lev.c:5769 lspo_mazewalk()
export async function mazewalk(...rawArgs) {
const dirMap = {
north: W_NORTH,
south: W_SOUTH,
east: W_EAST,
west: W_WEST,
random: W_RANDOM,
};
ensureDesCoder();
let mx;
let my;
let ftyp = ROOM;
let fstocked = 1;
let dir = -1;
if (rawArgs.length === 3) {
mx = rawArgs[0];
my = rawArgs[1];
dir = dirMap[String(rawArgs[2] || 'random').toLowerCase()] ?? W_RANDOM;
} else {
const args = rawArgs[0] ?? {};
const coord = normalizeCoordPair(args.coord, args.x, args.y);
if (!coord) return;
[mx, my] = coord;
if (args.typ != null) ftyp = splev_chr2typ(args.typ);
fstocked = args.stocked == null ? 1 : Number(!!args.stocked);
dir = dirMap[String(args.dir || 'random').toLowerCase()] ?? W_RANDOM;
}
const pos = chooseFilteredCoord([mx, my], () => true);
if (!pos) {
throw new Error('mazewalk coord not ok');
}
let x = pos.x;
let y = pos.y;
if (ftyp < 1) {
ftyp = game.level?.flags?.corrmaze ? CORR : ROOM;
}
if (dir === W_RANDOM) dir = randomWdir();
switch (dir) {
case W_NORTH: --y; break;
case W_SOUTH: y++; break;
case W_EAST: x++; break;
case W_WEST: --x; break;
default:
throw new Error('mazewalk: Bad direction');
}
if (!IS_DOOR(game.level?.at(x, y)?.typ ?? STONE)) {
const loc = game.level?.at(x, y);
if (loc) {
loc.typ = ftyp;
loc.flags = 0;
}
}
if (!(x % 2)) {
x += (dir === W_EAST) ? 1 : -1;
const loc = game.level?.at(x, y);
if (loc) {
loc.typ = ftyp;
loc.flags = 0;
}
}
if (!(y % 2)) {
y += (dir === W_SOUTH) ? 1 : -1;
}
walkfrom(x, y, ftyp);
if (fstocked) await fillEmptyMaze();
}
// des.drawbridge — C ref: sp_lev.c:5720 lspo_drawbridge()
export function drawbridge(args = {}) {
const dirMap = {
north: DB_NORTH,
south: DB_SOUTH,
west: DB_WEST,
east: DB_EAST,
random: -1,
};
const stateMap = {
open: 1,
closed: 0,
random: -1,
};
ensureDesCoder();
const coord = normalizeCoordPair(args.coord, args.x, args.y);
if (!coord) return;
let dir = dirMap[String(args.dir || 'random').toLowerCase()] ?? -1;
let dbOpen = stateMap[String(args.state || 'random').toLowerCase()] ?? -1;
let [x, y] = coord;
const pos = chooseFilteredCoord(coord, () => true);
if (!pos) return;
x = pos.x;
y = pos.y;
if (dbOpen === -1) dbOpen = !rn2(2);
if (dir === -1) {
const dirs = [DB_NORTH, DB_SOUTH, DB_WEST, DB_EAST];
dir = dirs[rn2(4)];
}
create_drawbridge(x, y, dir, !!dbOpen);
markSpLevMap(x, y);
}
// des.random_corridors — C ref: sp_lev.c:4557 lspo_random_corridors()
export async function random_corridors() {
ensureDesCoder();
await makecorridors();
}
function searchDoor(croom, wall, cnt) {
let dx = 0;
let dy = 0;
let xx = 0;
let yy = 0;
switch (wall) {
case W_SOUTH:
dx = 1; dy = 0; xx = croom.lx; yy = croom.hy + 1;
break;
case W_NORTH:
dx = 1; dy = 0; xx = croom.lx; yy = croom.ly - 1;
break;
case W_EAST:
dx = 0; dy = 1; xx = croom.hx + 1; yy = croom.ly;
break;
case W_WEST:
dx = 0; dy = 1; xx = croom.lx - 1; yy = croom.ly;
break;
default:
return null;
}
while (xx <= croom.hx + 1 && yy <= croom.hy + 1) {
const loc = game.level?.at(xx, yy);
if (loc && (IS_DOOR(loc.typ) || loc.typ === SDOOR)) {
if (cnt-- <= 0) return { x: xx, y: yy };
}
xx += dx;
yy += dy;
}
return null;
}
async function createCorridor(corr) {
if (corr.src.room === -1) {
await makecorridors();
return;
}
if (corr.src.wall === W_ANY || corr.src.wall === W_RANDOM
|| corr.dest.wall === W_ANY || corr.dest.wall === W_RANDOM) {
return;
}
const srcRoom = game.level.rooms?.[corr.src.room];
const destRoom = game.level.rooms?.[corr.dest.room];
if (!srcRoom || !destRoom) return;
const orgDoor = searchDoor(srcRoom, corr.src.wall, corr.src.door);
const destDoor = searchDoor(destRoom, corr.dest.wall, corr.dest.door);
if (!orgDoor || !destDoor) return;
const org = { ...orgDoor };
const dest = { ...destDoor };
switch (corr.src.wall) {
case W_NORTH: org.y--; break;
case W_SOUTH: org.y++; break;
case W_WEST: org.x--; break;
case W_EAST: org.x++; break;
default: break;
}
switch (corr.dest.wall) {
case W_NORTH: dest.y--; break;
case W_SOUTH: dest.y++; break;
case W_WEST: dest.x--; break;
case W_EAST: dest.x++; break;
default: break;
}
dig_corridor(org, dest, null, false, CORR, STONE);
}
export async function corridor(args = {}) {
const wallMap = {
all: W_ANY,
random: W_RANDOM,
north: W_NORTH,
west: W_WEST,
east: W_EAST,
south: W_SOUTH,
};
ensureDesCoder();
const corr = {
src: {
room: Number.isInteger(args.srcroom) ? args.srcroom : -1,
door: Number.isInteger(args.srcdoor) ? args.srcdoor : -1,
wall: wallMap[String(args.srcwall || 'all').toLowerCase()] ?? W_ANY,
},
dest: {
room: Number.isInteger(args.destroom) ? args.destroom : -1,
door: Number.isInteger(args.destdoor) ? args.destdoor : -1,
wall: wallMap[String(args.destwall || 'all').toLowerCase()] ?? W_ANY,
},
};
await createCorridor(corr);
}
// des.level_flags — C ref: sp_lev.c:5966 lspo_level_flags()
export function level_flags(...flags) {
const coder = ensureDesCoder();
const levFlags = game.level?.flags;
if (!levFlags) return;
for (const rawFlag of flags) {
const flag = String(rawFlag || '').toLowerCase();
switch (flag) {
case 'noteleport':
levFlags.noteleport = true;
break;
case 'hardfloor':
levFlags.hardfloor = true;
break;
case 'nommap':
levFlags.nommap = true;
break;
case 'shortsighted':
levFlags.shortsighted = true;
break;
case 'arboreal':
levFlags.arboreal = true;
break;
case 'shroud':
levFlags.hero_memory = true;
break;
case 'graveyard':
levFlags.graveyard = true;
break;
case 'mazelevel':
levFlags.is_maze_lev = true;
break;
case 'icedpools':
game.icedpools = true;
break;
case 'corrmaze':
levFlags.corrmaze = true;
break;
case 'premapped':
coder.premapped = true;
break;
case 'solidify':
coder.solidify = true;
break;
case 'sokoban':
game.Sokoban = true;
break;
case 'inaccessibles':
coder.check_inaccessibles = true;
break;
case 'noflipx':
coder.allow_flips &= ~2;
break;
case 'noflipy':
coder.allow_flips &= ~1;
break;
case 'noflip':
coder.allow_flips = 0;
break;
case 'temperate':
levFlags.temperature = 0;
break;
case 'hot':
levFlags.temperature = 1;
break;
case 'cold':
levFlags.temperature = -1;
break;
case 'nomongen':
levFlags.rndmongen = false;
break;
case 'nodeathdrops':
levFlags.deathdrops = false;
break;
case 'noautosearch':
levFlags.noautosearch = true;
break;
case 'fumaroles':
levFlags.fumaroles = true;
break;
case 'stormy':
levFlags.stormy = true;
break;
case '':
break;
default:
throw new Error(`Unknown level flag ${rawFlag}`);
}
}
}
// des.non_diggable — C ref: sp_lev.c:4253
function setWallPropertyInSelection(sel, prop) {
const points = sel instanceof SelectionVar ? sel.points : fullLevelSelection().points;
for (const pt of points) {
const loc = game.level?.at(pt.x, pt.y);
if (!loc) continue;
if (IS_STWALL(loc.typ) || IS_TREE(loc.typ) || loc.typ === IRONBARS) {
loc.wall_info |= prop;
}
}
}
export function non_diggable(sel) {
setWallPropertyInSelection(sel, W_NONDIGGABLE);
}
export function non_passwall(sel) {
setWallPropertyInSelection(sel, W_NONPASSWALL);
}
function normalizeRegionRect(region) {
if (!Array.isArray(region) || region.length < 4) return null;
return [region[0], region[1], region[2], region[3]];
}
function getLregion(args = {}) {
const region = normalizeRegionRect(args.region);
if (!region) return null;
const exclude = normalizeRegionRect(args.exclude) || [-1, -1, -1, -1];
const in_islev = !!args.region_islev;
let del_islev = !!args.exclude_islev;
if (exclude[0] < 0) del_islev = true;
return {
inarea: { x1: region[0], y1: region[1], x2: region[2], y2: region[3] },
delarea: { x1: exclude[0], y1: exclude[1], x2: exclude[2], y2: exclude[3] },
in_islev,
del_islev,
padding: 0,
rname: { str: null },
rtype: 0,
};
}
function resolveLregionCorner(x, y, islev) {
if (islev) return { x, y };
const abs = toAbsCoord([x, y]);
return abs ? { x: abs[0], y: abs[1] } : { x, y };
}
function levregionAdd(lregion) {
if (!lregion.in_islev) {
const p1 = resolveLregionCorner(lregion.inarea.x1, lregion.inarea.y1, false);
const p2 = resolveLregionCorner(lregion.inarea.x2, lregion.inarea.y2, false);
lregion.inarea.x1 = p1.x;
lregion.inarea.y1 = p1.y;
lregion.inarea.x2 = p2.x;
lregion.inarea.y2 = p2.y;
}
if (!lregion.del_islev) {
const p1 = resolveLregionCorner(lregion.delarea.x1, lregion.delarea.y1, false);
const p2 = resolveLregionCorner(lregion.delarea.x2, lregion.delarea.y2, false);
lregion.delarea.x1 = p1.x;
lregion.delarea.y1 = p1.y;
lregion.delarea.x2 = p2.x;
lregion.delarea.y2 = p2.y;
}
if (!Array.isArray(game.lregions)) game.lregions = [];
game.lregions.push(structuredClone(lregion));
game.num_lregions = game.lregions.length;
}
// des.teleport_region — C ref: sp_lev.c:5435 lspo_teleport_region()
export function teleport_region(args = {}) {
const teledirs = { both: LR_TELE, down: LR_DOWNTELE, up: LR_UPTELE };
const tmplregion = getLregion(args);
if (!tmplregion) return null;
tmplregion.rtype = teledirs[String(args.dir || 'both').toLowerCase()] ?? LR_TELE;
tmplregion.padding = 0;
tmplregion.rname = { str: null };
const destRegion = structuredClone(tmplregion);
levregionAdd(destRegion);
const dest = {
lx: destRegion.inarea.x1,
ly: destRegion.inarea.y1,
hx: destRegion.inarea.x2,
hy: destRegion.inarea.y2,
nlx: destRegion.delarea.x1,
nly: destRegion.delarea.y1,
nhx: destRegion.delarea.x2,
nhy: destRegion.delarea.y2,
};
if (tmplregion.rtype === LR_TELE || tmplregion.rtype === LR_UPTELE) game.updest = { ...dest };
if (tmplregion.rtype === LR_TELE || tmplregion.rtype === LR_DOWNTELE) game.dndest = { ...dest };
return destRegion;
}
// C ref: mkmaze.c:45 iswall() — checks wall/door/lavawall/water/sdoor/ironbars
function isWallTile(x, y) {
if (x < 1 || x >= COLNO || y < 0 || y >= ROWNO) return false;
const typ = game.level?.at(x, y)?.typ ?? STONE;
return !!IS_WALL(typ) || !!IS_DOOR(typ)
|| typ === LAVAWALL || typ === WATER
|| typ === SDOOR || typ === IRONBARS;
}
// C ref: mkmaze.c:58 iswall_or_stone() — out of bounds = stone
function isWallOrStone(x, y) {
if (!isok(x, y)) return true;
const typ = game.level?.at(x, y)?.typ ?? STONE;
return typ === STONE || isWallTile(x, y);
}
function isSolidTile(x, y) {
if (x < 1 || x >= COLNO || y < 0 || y >= ROWNO) return true;
const typ = game.level?.at(x, y)?.typ ?? STONE;
return IS_STWALL(typ);
}
function extend_spine(locale, wallThere, dx, dy) {
const nx = 1 + dx;
const ny = 1 + dy;
if (!wallThere) return 0;
if (dx) {
if (locale[1][0] && locale[1][2] && locale[nx][0] && locale[nx][2]) {
return 0;
}
return 1;
}
if (locale[0][1] && locale[2][1] && locale[0][ny] && locale[2][ny]) {
return 0;
}
return 1;
}
// wall_cleanup: imported from mklev.js
function wall_cleanup_protected(x1, y1, x2, y2, protectedArea = null) {
const level = game.level;
if (!level) return;
for (let x = x1; x <= x2; x++) {
for (let y = y1; y <= y2; y++) {
if (withinArea(x, y, protectedArea)) continue;
const loc = level.at(x, y);
const typ = loc?.typ ?? STONE;
if (!(IS_WALL(typ) && typ !== DBWALL)) continue;
if (isSolidTile(x - 1, y - 1) && isSolidTile(x - 1, y)
&& isSolidTile(x - 1, y + 1) && isSolidTile(x, y - 1)
&& isSolidTile(x, y + 1) && isSolidTile(x + 1, y - 1)
&& isSolidTile(x + 1, y) && isSolidTile(x + 1, y + 1)) {
loc.typ = STONE;
}
}
}
}
function fix_wall_spines(x1, y1, x2, y2, protectedArea = null) {
const spineArray = [VWALL, HWALL, HWALL, HWALL,
VWALL, TRCORNER, TLCORNER, TDWALL,
VWALL, BRCORNER, BLCORNER, TUWALL,
VWALL, TLWALL, TRWALL, CROSSWALL];
const level = game.level;
if (!level) return;
for (let x = x1; x <= x2; x++) {
for (let y = y1; y <= y2; y++) {
const loc = level.at(x, y);
const typ = loc?.typ ?? STONE;
if (!(IS_WALL(typ) && typ !== DBWALL)) continue;
const locFn = withinArea(x, y, protectedArea) ? isWallTile : isWallOrStone;
const locale = [
[locFn(x - 1, y - 1), locFn(x - 1, y), locFn(x - 1, y + 1)],
[locFn(x, y - 1), 0, locFn(x, y + 1)],
[locFn(x + 1, y - 1), locFn(x + 1, y), locFn(x + 1, y + 1)],
];
const bits = (extend_spine(locale, isWallTile(x, y - 1), 0, -1) << 3)
| (extend_spine(locale, isWallTile(x, y + 1), 0, 1) << 2)
| (extend_spine(locale, isWallTile(x + 1, y), 1, 0) << 1)
| extend_spine(locale, isWallTile(x - 1, y), -1, 0);
if (bits) loc.typ = spineArray[bits];
}
}
}
// wallification: imported from mklev.js
function removeBoundarySyms() {
let hasBounds = false;
for (let x = 0; x < COLNO - 1 && !hasBounds; x++) {
for (let y = 0; y < ROWNO - 1; y++) {
if (game.level?.at(x, y)?.typ === CROSSWALL) {
hasBounds = true;
break;
}
}
}
if (!hasBounds) return;
const xMazeMax = (COLNO - 1) & ~1;
const yMazeMax = (ROWNO - 1) & ~1;
for (let x = 0; x < xMazeMax; x++) {
for (let y = 0; y < yMazeMax; y++) {
const loc = game.level?.at(x, y);
if (loc?.typ === CROSSWALL && game.sp_lev_map?.[x]?.[y]) {
loc.typ = ROOM;
}
}
}
}
function solidifyMap() {
for (let x = 0; x < COLNO; x++) {
for (let y = 0; y < ROWNO; y++) {
const loc = game.level?.at(x, y);
if (loc && IS_STWALL(loc.typ) && !game.sp_lev_map?.[x]?.[y]) {
loc.wall_info |= (W_NONDIGGABLE | W_NONPASSWALL);
}
}
}
}
function selectionHasPoint(sel, x, y) {
if (!(sel instanceof SelectionVar)) return false;
return sel.points.some((pt) => pt.x === x && pt.y === y);
}
function selectionFloodFillAccessible(sel, sx, sy) {
if (!(sel instanceof SelectionVar)) return;
if (!isok(sx, sy)) return;
const level = game.level;
if (!level) return;
const floodfillchkMatchAccessible = (x, y) => {
const typ = level.at(x, y)?.typ ?? STONE;
return ACCESSIBLE(typ) || typ === SDOOR || typ === SCORR;
};
const stack = [[sx, sy]];
const queued = new Set([`${sx},${sy}`]);
const visited = new Set();
while (stack.length) {
const [x, y] = stack.pop();
queued.delete(`${x},${y}`);
const key = `${x},${y}`;
if (visited.has(key)) continue;
visited.add(key);
if (!isok(x, y)) continue;
if (!selectionHasPoint(sel, x, y)) sel.setAbsPoint(x, y, 1);
const neighbors = [
[x + 1, y], [x - 1, y], [x, y + 1], [x, y - 1],
[x + 1, y + 1], [x - 1, y - 1], [x - 1, y + 1], [x + 1, y - 1],
];
for (const [nx, ny] of neighbors) {
const nkey = `${nx},${ny}`;
if (!isok(nx, ny)) continue;
if (!floodfillchkMatchAccessible(nx, ny)) continue;
if (visited.has(nkey) || queued.has(nkey)) continue;
stack.push([nx, ny]);
queued.add(nkey);
}
}
}
function selectionRndcoordAbs(sel, removeit) {
if (!(sel instanceof SelectionVar) || !sel.points.length) return null;
const bounds = sel.bounds();
const pointSet = new Set(sel.points.map((pt) => `${pt.x},${pt.y}`));
let idx = 0;
for (let x = bounds.lx; x <= bounds.hx; x++) {
for (let y = bounds.ly; y <= bounds.hy; y++) {
if (pointSet.has(`${x},${y}`)) idx++;
}
}
if (!idx) return null;
let c = rn2(idx);
for (let x = bounds.lx; x <= bounds.hx; x++) {
for (let y = bounds.ly; y <= bounds.hy; y++) {
const key = `${x},${y}`;
if (!pointSet.has(key)) continue;
if (c === 0) {
if (removeit) {
sel.points = sel.points.filter((pt) => !(pt.x === x && pt.y === y));
}
return { x, y };
}
c--;
}
}
return null;
}
async function generateWayOutMethod(nx, ny, ov) {
const escapeItems = [PICK_AXE, DWARVISH_MATTOCK, WAN_DIGGING, WAN_TELEPORTATION, SCR_TELEPORTATION, RIN_TELEPORTATION];
const ov2 = selection.new();
selectionFloodFillAccessible(ov2, nx, ny);
let ov3 = ov2.clone();
let res = true;
let pos = null;
while ((pos = selectionRndcoordAbs(ov3, true))) {
const { x, y } = pos;
if (isok(x + 1, y) && !selectionHasPoint(ov, x + 1, y)
&& IS_WALL(game.level?.at(x + 1, y)?.typ ?? STONE)
&& isok(x + 2, y) && selectionHasPoint(ov, x + 2, y)
&& ACCESSIBLE(game.level?.at(x + 2, y)?.typ ?? STONE)) {
game.level.at(x + 1, y).typ = SDOOR;
return res;
}
if (isok(x - 1, y) && !selectionHasPoint(ov, x - 1, y)
&& IS_WALL(game.level?.at(x - 1, y)?.typ ?? STONE)
&& isok(x - 2, y) && selectionHasPoint(ov, x - 2, y)
&& ACCESSIBLE(game.level?.at(x - 2, y)?.typ ?? STONE)) {
game.level.at(x - 1, y).typ = SDOOR;
return res;
}
if (isok(x, y + 1) && !selectionHasPoint(ov, x, y + 1)
&& IS_WALL(game.level?.at(x, y + 1)?.typ ?? STONE)
&& isok(x, y + 2) && selectionHasPoint(ov, x, y + 2)
&& ACCESSIBLE(game.level?.at(x, y + 2)?.typ ?? STONE)) {
game.level.at(x, y + 1).typ = SDOOR;
return res;
}
if (isok(x, y - 1) && !selectionHasPoint(ov, x, y - 1)
&& IS_WALL(game.level?.at(x, y - 1)?.typ ?? STONE)
&& isok(x, y - 2) && selectionHasPoint(ov, x, y - 2)
&& ACCESSIBLE(game.level?.at(x, y - 2)?.typ ?? STONE)) {
game.level.at(x, y - 1).typ = SDOOR;
return res;
}
}
if (Can_dig_down(game.u?.uz)) {
ov3 = ov2.clone();
while ((pos = selectionRndcoordAbs(ov3, true))) {
const trapType = rn2(2) ? HOLE : TRAPDOOR;
if (await maketrap(pos.x, pos.y, trapType)) {
return res;
}
}
}
pos = selectionRndcoordAbs(ov2, false);
if (pos) {
const item = escapeItems[rn2(escapeItems.length)];
mksobj_at(item, pos.x, pos.y, true, false);
return res;
}
res = false;
return res;
}
async function ensureWayOut() {
const ov = selection.new();
const uz = game.u?.uz;
for (let stway = game.stairs; stway; stway = stway.next) {
if (stway.tolev?.dnum === uz?.dnum) {
selectionFloodFillAccessible(ov, stway.sx, stway.sy);
}
}
for (let ttmp = game.ftrap; ttmp; ttmp = ttmp.ntrap) {
if ((undestroyable_trap(ttmp.ttyp) || is_hole(ttmp.ttyp))
&& !selectionHasPoint(ov, ttmp.tx, ttmp.ty)) {
selectionFloodFillAccessible(ov, ttmp.tx, ttmp.ty);
}
}
let ret;
do {
ret = true;
for (let x = 1; x < COLNO; x++) {
for (let y = 0; y < ROWNO; y++) {
const typ = game.level?.at(x, y)?.typ ?? STONE;
if (ACCESSIBLE(typ) && !selectionHasPoint(ov, x, y)) {
if (await generateWayOutMethod(x, y, ov)) {
selectionFloodFillAccessible(ov, x, y);
}
ret = false;
break;
}
}
if (!ret) break;
}
} while (!ret);
}
function isBranchLev() {
const uz = game.u?.uz;
if (!uz || !Array.isArray(game.branches)) return false;
for (const br of game.branches) {
if (!br) continue;
const e1 = br.end1;
const e2 = br.end2;
if ((e1?.dnum === uz.dnum && e1?.dlevel === uz.dlevel)
|| (e2?.dnum === uz.dnum && e2?.dlevel === uz.dlevel)) {
return true;
}
}
return false;
}
async function fixupSpecialRegions() {
const mkBubbleRngOnly = (x, y, xmax, ymax, n, onWaterLevel, bubblesOut) => {
// C ref: mkmaze.c mk_bubble() early return still consumes rn2(7) in caller.
if (x >= xmax || y >= ymax) return;
const bubbleMasks = [
{ w: 2, h: 1, rows: [0x3] },
{ w: 3, h: 2, rows: [0x7, 0x7] },
{ w: 4, h: 3, rows: [0x6, 0xf, 0x6] },
{ w: 5, h: 3, rows: [0xe, 0x1f, 0xe] },
{ w: 6, h: 4, rows: [0x1e, 0x3f, 0x3f, 0x1e] },
{ w: 7, h: 4, rows: [0x3e, 0x7f, 0x7f, 0x3e] },
{ w: 8, h: 4, rows: [0x7e, 0xff, 0xff, 0x7e] },
];
const idx = (n >= 0 && n < bubbleMasks.length) ? n : (bubbleMasks.length - 1);
const mask = bubbleMasks[idx];
let bx = x;
let by = y;
if ((bx + mask.w - 1) > xmax) bx = xmax - mask.w + 1;
if ((by + mask.h - 1) > ymax) by = ymax - mask.h + 1;
// C ref: mkmaze.c mk_bubble() — b->dx = 1 - rn2(3); b->dy = 1 - rn2(3);
const dx = 1 - rn2(3);
const dy = 1 - rn2(3);
bubblesOut.push({ x: bx, y: by, dx, dy, w: mask.w, h: mask.h, rows: [...mask.rows] });
// C ref: mkmaze.c mv_bubble(..., ini=TRUE) draw pass.
for (let i = 0; i < mask.w; i++) {
for (let j = 0; j < mask.h; j++) {
if ((mask.rows[j] & (1 << i)) === 0) continue;
const tx = bx + i;
const ty = by + j;
const loc = game.level?.at(tx, ty);
if (!loc) continue;
loc.typ = onWaterLevel ? AIR : CLOUD;
loc.lit = 1;
}
}
};
const setupWaterOrAirLevel = () => {
// C ref: mkmaze.c fixup_special() + setup_waterlevel()
const uz = game.u?.uz;
const map = game.level;
if (!uz || !map) return;
if (!Is_waterlevel(uz) && !Is_airlevel(uz)) return;
map.flags.hero_memory = false;
// C macros in mkmaze.c:
// gbxmin = svx.xmin + 1, gbymin = svy.ymin + 1
// gbxmax = svx.xmax - 1, gbymax = svy.ymax - 1
const xmin = 4;
const ymin = 2;
const xmax = Math.min(77, (COLNO - 1) - 2);
const ymax = Math.min(19, (ROWNO - 1) - 1);
const typ = Is_waterlevel(uz) ? WATER : AIR;
for (let x = 1; x <= COLNO - 1; x++) {
for (let y = 0; y <= ROWNO - 1; y++) {
const loc = map.at(x, y);
if (loc?.typ === STONE) {
loc.typ = typ;
}
}
}
const onWaterLevel = Is_waterlevel(uz);
const bubbles = [];
const xskip = onWaterLevel ? (10 + rn2(10)) : (6 + rn2(4));
const yskip = onWaterLevel ? (4 + rn2(4)) : (3 + rn2(3));
for (let x = xmin; x <= xmax; x += xskip) {
for (let y = ymin; y <= ymax; y += yskip) {
const n = rn2(7);
mkBubbleRngOnly(x, y, xmax, ymax, n, onWaterLevel, bubbles);
}
}
game.plane_bubbles = bubbles;
game.plane_bubble_bounds = { xmin, ymin, xmax, ymax };
// C ref: mkmaze.c movebubbles() uses static `up` that persists across
// level transitions; do not reset traversal direction on setup.
if (typeof game.plane_bubble_up !== 'boolean') {
game.plane_bubble_up = false;
}
};
setupWaterOrAirLevel();
const tt_oname = (otmp) => {
if (!otmp) return null;
const maxrank = game.sysopt?.tt_oname_maxrank ?? 10;
// C always rolls rank in get_rnd_toptenentry(); score file may still yield no entry.
rnd(maxrank);
return null;
};
const mk_tt_object = (objtype, x, y) => {
const initialize = (objtype !== STATUE);
const otmp = mksobj_at(objtype, x, y, initialize, false);
if (!otmp) return null;
// C mk_tt_object(): tt_oname() first, then role-random fallback.
if (!tt_oname(otmp)) {
set_corpsenm(otmp, rn1(PM_WIZARD - PM_ARCHEOLOGIST + 1, PM_ARCHEOLOGIST));
}
return otmp;
};
const roomX = (croom) => rn1(croom.hx - croom.lx + 1, croom.lx);
const roomY = (croom) => rn1(croom.hy - croom.ly + 1, croom.ly);
const regions = Array.isArray(game.lregions) ? game.lregions : [];
let addedBranch = false;
const uz = game.u?.uz || { dnum: 0, dlevel: 1 };
for (const r of regions) {
if (!r) continue;
switch (r.rtype) {
case LR_BRANCH:
addedBranch = true;
await place_lregion(
r.inarea.x1, r.inarea.y1, r.inarea.x2, r.inarea.y2,
r.delarea.x1, r.delarea.y1, r.delarea.x2, r.delarea.y2,
r.rtype, null
);
break;
case LR_PORTAL: {
let lev = { dnum: uz.dnum, dlevel: uz.dlevel };
const name = r.rname?.str || '';
if (/^\d+$/.test(name)) {
lev = { dnum: uz.dnum, dlevel: parseInt(name, 10) || uz.dlevel };
} else {
const sp = find_level(name);
if (sp?.dlevel) lev = { dnum: sp.dlevel.dnum, dlevel: sp.dlevel.dlevel };
}
await place_lregion(
r.inarea.x1, r.inarea.y1, r.inarea.x2, r.inarea.y2,
r.delarea.x1, r.delarea.y1, r.delarea.x2, r.delarea.y2,
r.rtype, lev
);
break;
}
case LR_UPSTAIR:
case LR_DOWNSTAIR:
await place_lregion(
r.inarea.x1, r.inarea.y1, r.inarea.x2, r.inarea.y2,
r.delarea.x1, r.delarea.y1, r.delarea.x2, r.delarea.y2,
r.rtype, null
);
break;
case LR_TELE:
case LR_UPTELE:
case LR_DOWNTELE:
if (r.rtype === LR_TELE || r.rtype === LR_UPTELE) {
game.updest = {
lx: r.inarea.x1, ly: r.inarea.y1, hx: r.inarea.x2, hy: r.inarea.y2,
nlx: r.delarea.x1, nly: r.delarea.y1, nhx: r.delarea.x2, nhy: r.delarea.y2,
};
}
if (r.rtype === LR_TELE || r.rtype === LR_DOWNTELE) {
game.dndest = {
lx: r.inarea.x1, ly: r.inarea.y1, hx: r.inarea.x2, hy: r.inarea.y2,
nlx: r.delarea.x1, nly: r.delarea.y1, nhx: r.delarea.x2, nhy: r.delarea.y2,
};
}
break;
default:
break;
}
}
if (!addedBranch && isBranchLev()) {
await place_lregion(0, 0, 0, 0, 0, 0, 0, 0, LR_BRANCH, null);
}
// C ref: mkmaze.c:649-686 (fixup_special medusa-statue population).
if (isMedusaLevel()) {
const croom = game.level.rooms?.[0];
if (croom) {
let otmp = null;
for (let tryct = rnd(4); tryct; tryct--) {
const x = roomX(croom);
const y = roomY(croom);
if (goodpos(x, y, null, 0)) {
let tryct2 = 0;
otmp = mk_tt_object(STATUE, x, y);
while (++tryct2 < 100 && otmp
&& (poly_when_stoned(mons[otmp.corpsenm])
|| pm_resists_ston(mons[otmp.corpsenm]))) {
set_corpsenm(otmp, rndmonnum());
}
}
}
if (rn2(2)) {
otmp = mk_tt_object(STATUE, roomX(croom), roomY(croom));
} else {
otmp = mkcorpstat(STATUE, null, null, roomX(croom), roomY(croom), CORPSTAT_NONE);
}
if (otmp) {
let tryct = 0;
while (++tryct < 100
&& (pm_resists_ston(mons[otmp.corpsenm])
|| poly_when_stoned(mons[otmp.corpsenm]))) {
set_corpsenm(otmp, rndmonnum());
}
}
}
} else if (isBaalzLevel()) {
baalzFixupMinimal();
}
game.lregions = [];
game.num_lregions = 0;
}
// C ref: sp_lev.c:968 flip_level_rnd()
function flipLevelRnd(flp, _extras = false) {
let c = 0;
if ((flp & 1) && rn2(2)) c |= 1;
if ((flp & 2) && rn2(2)) c |= 2;
if (c) {
let { xmin: minx, ymin: miny, xmax: maxx, ymax: maxy } = get_level_extends();
if (miny < 0) miny = 0;
if (minx < 1) minx = 1;
if (maxx >= COLNO) maxx = COLNO - 1;
if (maxy >= ROWNO) maxy = ROWNO - 1;
const flipX = (x) => ((maxx - x) + minx);
const flipY = (y) => ((maxy - y) + miny);
const inFlipArea = (x, y) => (
Number.isFinite(x) && Number.isFinite(y)
&& x >= minx && x <= maxx && y >= miny && y <= maxy
);
const map = game.level;
if (!map) return;
const flipDbridgeHorizontal = (loc) => {
if (!loc || !IS_DRAWBRIDGE(loc.typ)) return;
const dir = loc.drawbridgemask & DB_DIR;
if (dir === DB_WEST) {
loc.drawbridgemask &= ~DB_DIR;
loc.drawbridgemask |= DB_EAST;
} else if (dir === DB_EAST) {
loc.drawbridgemask &= ~DB_DIR;
loc.drawbridgemask |= DB_WEST;
}
};
const flipDbridgeVertical = (loc) => {
if (!loc || !IS_DRAWBRIDGE(loc.typ)) return;
const dir = loc.drawbridgemask & DB_DIR;
if (dir === DB_NORTH) {
loc.drawbridgemask &= ~DB_DIR;
loc.drawbridgemask |= DB_SOUTH;
} else if (dir === DB_SOUTH) {
loc.drawbridgemask &= ~DB_DIR;
loc.drawbridgemask |= DB_NORTH;
}
};
// Flip map only inside C's computed level extents.
if (c & 1) {
for (let x = minx; x <= maxx; x++) {
for (let y = miny; y < (miny + Math.trunc((maxy - miny + 1) / 2)); y++) {
const ny = flipY(y);
flipDbridgeVertical(map.locations[x][y]);
flipDbridgeVertical(map.locations[x][ny]);
const trm = map.locations[x][y];
map.locations[x][y] = map.locations[x][ny];
map.locations[x][ny] = trm;
}
}
}
if (c & 2) {
for (let x = minx; x < (minx + Math.trunc((maxx - minx + 1) / 2)); x++) {
for (let y = miny; y <= maxy; y++) {
const nx = flipX(x);
flipDbridgeHorizontal(map.locations[x][y]);
flipDbridgeHorizontal(map.locations[nx][y]);
const trm = map.locations[x][y];
map.locations[x][y] = map.locations[nx][y];
map.locations[nx][y] = trm;
}
}
}
const flipPoint = (pt, xk, yk, { requireX = false, areaBounded = false } = {}) => {
if (!pt || !Number.isFinite(pt[xk]) || !Number.isFinite(pt[yk])) return;
if (requireX && !pt[xk]) return;
if (areaBounded && !inFlipArea(pt[xk], pt[yk])) return;
if (c & 2) pt[xk] = flipX(pt[xk]);
if (c & 1) pt[yk] = flipY(pt[yk]);
};
const flipRange = (r, lx, hx, ly, hy) => {
if (!r) return;
if (c & 2) {
if (Number.isFinite(r[lx])) r[lx] = flipX(r[lx]);
if (Number.isFinite(r[hx])) r[hx] = flipX(r[hx]);
if (Number.isFinite(r[lx]) && Number.isFinite(r[hx]) && r[lx] > r[hx]) {
const t = r[lx]; r[lx] = r[hx]; r[hx] = t;
}
}
if (c & 1) {
if (Number.isFinite(r[ly])) r[ly] = flipY(r[ly]);
if (Number.isFinite(r[hy])) r[hy] = flipY(r[hy]);
if (Number.isFinite(r[ly]) && Number.isFinite(r[hy]) && r[ly] > r[hy]) {
const t = r[ly]; r[ly] = r[hy]; r[hy] = t;
}
}
};
// Rooms, doors, stairs, traps, objects, monsters, engravings.
for (const room of game.level.rooms || []) {
flipRange(room, 'lx', 'hx', 'ly', 'hy');
}
for (const d of game.level.doors || []) flipPoint(d, 'x', 'y', { requireX: true, areaBounded: true });
flipPoint(map.upstair, 'x', 'y');
flipPoint(map.dnstair, 'x', 'y');
for (const s of map.stairs || []) {
flipPoint(s, 'x', 'y');
if (s.to) flipPoint(s.to, 'sx', 'sy');
}
for (const t of map.traps || []) flipPoint(t, 'tx', 'ty', { areaBounded: true });
for (const o of map.objects || []) flipPoint(o, 'ox', 'oy', { areaBounded: true });
const flipCoord = (pt) => {
if (!pt || !Number.isFinite(pt.x) || !Number.isFinite(pt.y)) return;
if (c & 2) pt.x = flipX(pt.x);
if (c & 1) pt.y = flipY(pt.y);
};
for (const m of map.monsters || []) {
if (!m || !Number.isFinite(m.mx) || !Number.isFinite(m.my)) continue;
// C ref: sp_lev.c flip_level_rnd() skips out-of-area monsters.
if (!inFlipArea(m.mx, m.my)) continue;
if (c & 2) m.mx = flipX(m.mx);
if (c & 1) m.my = flipY(m.my);
// C ref: Flip_coord(mtmp->mgoal)
flipCoord(m.mgoal);
if (m.ispriest) {
// C ref: Flip_coord(EPRI(mtmp)->shrpos)
const epri = m.epri || m.mextra?.epri;
flipCoord(epri?.shrpos);
} else if (m.isshk) {
// C ref: Flip_coord(ESHK(mtmp)->shk/shd)
const eshk = m.eshk || m.mextra?.eshk;
flipCoord(eshk?.shk);
flipCoord(eshk?.shd);
}
// NOTE: long-worm segment flipping is not implemented in JS yet.
}
for (const e of map.engravings || []) flipPoint(e, 'x', 'y');
for (let s = game.stairs; s; s = s.next) flipPoint(s, 'sx', 'sy');
// Flip level regions used by fixup_special().
for (const r of game.lregions || []) {
if (!r) continue;
flipRange(r.inarea, 'x1', 'x2', 'y1', 'y2');
flipRange(r.delarea, 'x1', 'x2', 'y1', 'y2');
}
// Flip teleport destination ranges only when active.
// Keep all-zero sentinel ranges unchanged.
const activeDest = (d) => !!d && !(
d.lx === 0 && d.ly === 0 && d.hx === 0 && d.hy === 0
&& d.nlx === 0 && d.nly === 0 && d.nhx === 0 && d.nhy === 0
);
if (activeDest(game.updest)) {
flipRange(game.updest, 'lx', 'hx', 'ly', 'hy');
flipRange(game.updest, 'nlx', 'nhx', 'nly', 'nhy');
}
if (activeDest(game.dndest)) {
flipRange(game.dndest, 'lx', 'hx', 'ly', 'hy');
flipRange(game.dndest, 'nlx', 'nhx', 'nly', 'nhy');
}
// Flip exclusion zones.
for (const ez of map.exclusionZones || []) {
flipRange(ez, 'lx', 'hx', 'ly', 'hy');
}
}
}
// des.finalize_level — C ref: sp_lev.c:6406
export async function finalize_level() {
const coder = ensureDesCoder();
if (coder.finalized) return true;
coder.finalized = true;
// C ref: sp_lev.c lspo_finalize_level()/load_special()
// link_doors_rooms() happens before remove_boundary_syms().
linkDoorsRooms();
removeBoundarySyms();
if (coder.check_inaccessibles) await ensureWayOut();
map_cleanup();
// C ref: sp_lev.c:6037/6479 — skip global wallification for corrmaze maps.
if (!game.level?.flags?.corrmaze) {
wallification(1, 0, COLNO - 1, ROWNO - 1);
}
flipLevelRnd(coder.allow_flips, false);
// C ref: sp_lev.c:915 — after flip, re-compute wall spines and wall_info
// because flip swaps cells without converting wall types (TLCORNER → TRCORNER etc.)
if (coder.allow_flips) {
if (!game.level?.flags?.corrmaze) {
wallification(1, 0, COLNO - 1, ROWNO - 1);
}
set_wall_state();
}
if (coder.solidify) solidifyMap();
await fixupSpecialRegions();
if (coder.premapped) premapDetect();
return true;
}
// C ref: sp_lev.c:329 map_cleanup — remove boulders/traps/engravings from liquid
function map_cleanup() {
for (let x = 0; x < COLNO; x++) {
for (let y = 0; y < ROWNO; y++) {
const loc = game.level?.at(x, y);
if (!loc) continue;
if (IS_LAVA(loc.typ) || IS_POOL(loc.typ)) {
// remove boulders from liquid
let otmp;
while ((otmp = sobj_at(BOULDER, x, y))) {
obj_extract_self(otmp);
obfree(otmp, null);
}
// remove traps from liquid
const ttmp = t_at(x, y);
if (ttmp && !undestroyable_trap(ttmp.ttyp))
deltrap(ttmp);
// remove engravings from liquid
const etmp = engr_at(x, y);
if (etmp) del_engr(etmp);
}
}
}
}
function skipPremapDetect(x, y) {
const loc = game.level?.at(x, y);
if (!loc) return true;
return loc.typ === STONE && !!(loc.wall_info & (W_NONDIGGABLE | W_NONPASSWALL));
}
function premapDetect() {
for (let x = 1; x < COLNO; x++) {
for (let y = 0; y < ROWNO; y++) {
const loc = game.level?.at(x, y);
if (!loc || skipPremapDetect(x, y)) continue;
loc.seenv = SVALL;
loc.waslit = true;
if (loc.typ === SDOOR) {
loc.wall_info = 0;
}
map_background(x, y, 1);
const boulder = sobj_at(BOULDER, x, y);
if (boulder) map_object(boulder, 1);
}
}
for (const trap of game.level?.traps || []) {
trap.tseen = 1;
map_trap(trap, 1);
}
}
export function message(msg) {
if (typeof msg !== 'string' || !msg.length) return;
const old = game.lev_message || '';
game.lev_message = old ? `${old}\n${msg}` : msg;
}
// des.stair — C ref: sp_lev.c:3671 lspo_stair()
function goodStairLoc(x, y) {
const typ = game.level?.at(x, y)?.typ;
return typ === ROOM || typ === CORR || typ === ICE;
}
function createSpecialStairway(up, coord, usingLadder) {
const croomActive = !!ensureDesCoder()?.croom;
const randomRoomCoord = !coord && !!game.currentRoom && croomActive;
if (randomRoomCoord) pushRngLogEntry('>somexy');
let pos = null;
if (coord) {
const abs = toAbsCoord(coord);
if (abs && isok(abs[0], abs[1])) {
pos = { x: abs[0], y: abs[1] };
}
} else {
pos = chooseFilteredCoord(null, goodStairLoc);
}
if (randomRoomCoord) pushRngLogEntry(`<somexy=${pos ? 1 : 0}`);
if (!pos) return null;
const trap = t_at(pos.x, pos.y);
if (trap) deltrap(trap);
const loc = game.level?.at(pos.x, pos.y);
if (!loc) return null;
markSpLevMap(pos.x, pos.y);
if (usingLadder) {
loc.typ = LADDER;
loc.ladder = up ? LA_UP : LA_DOWN;
const uz = game.u?.uz || { dnum: 0, dlevel: 1 };
stairway_add(pos.x, pos.y, up, true, {
dnum: uz.dnum,
dlevel: uz.dlevel + (up ? -1 : 1),
});
return { x: pos.x, y: pos.y, up, isladder: true };
}
loc.typ = STAIRS;
const uz = game.u?.uz || { dnum: 0, dlevel: 1 };
stairway_add(pos.x, pos.y, up, false, {
dnum: uz.dnum,
dlevel: uz.dlevel + (up ? -1 : 1),
});
if (up) game.level.upstair = { x: pos.x, y: pos.y };
else game.level.dnstair = { x: pos.x, y: pos.y };
return { x: pos.x, y: pos.y, up, isladder: false };
}
export function stair(args, x, y) {
let up = false;
let coord = null;
if (typeof args === 'string') {
up = String(args).toLowerCase() === 'up';
// C accepts stair("down", {x,y}) as well as stair("down", x, y).
coord = normalizeCoordPair(x, null, null);
if (!coord) coord = normalizeCoordPair(null, x, y);
} else if (args && typeof args === 'object') {
up = String(args.dir || 'down').toLowerCase() === 'up';
coord = normalizeCoordPair(args.coord, args.x, args.y);
} else {
coord = normalizeCoordPair(null, x, y);
}
return createSpecialStairway(up, coord, false);
}
export function ladder(args, x, y) {
let up = false;
let coord = null;
if (typeof args === 'string') {
up = String(args).toLowerCase() === 'up';
// C accepts ladder("up", {x,y}) as well as ladder("up", x, y).
coord = normalizeCoordPair(x, null, null);
if (!coord) coord = normalizeCoordPair(null, x, y);
} else if (args && typeof args === 'object') {
up = String(args.dir || 'down').toLowerCase() === 'up';
coord = normalizeCoordPair(args.coord, args.x, args.y);
} else {
coord = normalizeCoordPair(null, x, y);
}
return createSpecialStairway(up, coord, true);
}
// des.engraving — C ref: sp_lev.c:3571 lspo_engraving()
export function engraving(args, typeArg = null, textArg = null) {
let spec = null;
let wipeout = true;
let guardobjects = false;
if (args && typeof args === 'object' && !Array.isArray(args) && !isFiniteCoord(args)) {
// C argc==1 table form
spec = normalizeEngravingArgs(args);
wipeout = (spec?.degrade !== undefined) ? !!spec.degrade : true;
guardobjects = (spec?.guardobjects !== undefined) ? !!spec.guardobjects : false;
} else {
// C argc==3 positional form: engraving(coord, type, text)
const coord = normalizeCoord(args, null, null);
spec = coord ? { coord, type: typeArg, text: textArg } : null;
}
if (!spec?.coord) return;
const typeName = String(spec.type || 'engrave').toLowerCase();
let etyp = ENGRAVE;
if (typeName === 'dust') etyp = DUST;
else if (typeName === 'burn') etyp = BURN;
else if (typeName === 'mark') etyp = MARK;
else if (typeName === 'blood') etyp = ENGR_BLOOD;
// Create real engraving state and emit C-matching ^engr[type,x,y] event.
const [ax, ay] = toAbsCoord(spec.coord);
make_engr_at(ax, ay, spec.text || '', null, 0, etyp);
// C ref: sp_lev.c lspo_engraving() — ep->guardobjects, ep->nowipeout
const ep = engr_at(ax, ay);
if (ep) {
ep.guardobjects = guardobjects ? 1 : 0;
ep.nowipeout = wipeout ? 0 : 1;
}
}
// des.door — C ref: sp_lev.c:3625 lspo_door()
export function door(args) {
const stateMap = {
random: -1,
open: D_ISOPEN,
closed: D_CLOSED,
locked: D_LOCKED,
nodoor: D_NODOOR,
broken: D_BROKEN,
secret: D_SECRET,
};
const wallMap = {
all: W_ANY,
random: W_ANY,
north: W_NORTH,
west: W_WEST,
east: W_EAST,
south: W_SOUTH,
};
let msk = -1;
let coord = null;
let wall = W_ANY;
let pos = -1;
if (typeof args === 'string') {
msk = stateMap[String(args).toLowerCase()] ?? -1;
coord = normalizeCoordPair(null, arguments[1], arguments[2]);
} else if (args && typeof args === 'object') {
msk = stateMap[String(args.state || 'random').toLowerCase()] ?? -1;
coord = normalizeCoordPair(args.coord, args.x, args.y);
wall = wallMap[String(args.wall || 'all').toLowerCase()] ?? W_ANY;
pos = Number.isFinite(args.pos) ? args.pos : -1;
}
const typ = msk === -1 ? rnddoor() : msk;
if (!coord || (coord[0] === -1 && coord[1] === -1)) {
return createDoor({
// C ref: lspo_door() sets tmpd.secret to 0 or 1, never -1.
secret: typ === D_SECRET ? 1 : 0,
mask: msk,
pos,
wall,
}, game.currentRoom);
}
const abs = chooseFilteredCoord(coord, () => true);
if (!abs) return null;
selSetDoor(abs.x, abs.y, typ);
return { x: abs.x, y: abs.y };
}
// des.region — C ref: sp_lev.c:4174 lspo_region()
export async function region(args, litArg) {
// C ref: sp_lev.c spo_region — two calling conventions:
// 1. des.region(selection, "lit"/"unlit") — set lighting for all tiles in selection
// 2. des.region({region:[x1,y1,x2,y2], ...}) — create a room region
if (args instanceof SelectionVar
&& (litArg === 'lit' || litArg === 'unlit')) {
const sel = args.clone();
const lit = litArg === 'lit';
if (lit) growSelection(sel, W_ANY);
const level = game.level;
if (level) {
for (const pt of sel.points) {
const loc = level.at(pt.x, pt.y);
if (loc) {
loc.lit = IS_LAVA(loc.typ) || lit;
loc.waslit = !!loc.lit;
}
}
}
return null;
}
if (!args || !Array.isArray(args.region) || args.region.length < 4) {
return null;
}
const p1 = chooseFilteredCoord([args.region[0], args.region[1]], () => true);
const p2 = chooseFilteredCoord([args.region[2], args.region[3]], () => true);
if (!p1 || !p2) return null;
const x1 = p1.x, y1 = p1.y, x2 = p2.x, y2 = p2.y;
const rtype = getRoomTypeOpt(args.type);
const rlit = args.lit ?? -1;
const irregular = !!args.irregular;
const filled = args.filled ?? 0;
const joined = args.joined ?? true;
const arrivalRoom = !!args.arrival_room;
// C ref: sp_lev.c:5645 — litstate_rnd uses depth(&u.uz), not dlevel
const _d = (game.dungeons?.[game.u?.uz?.dnum ?? 0]?.depth_start ?? 0) + (game.u?.uz?.dlevel ?? 1) - 1;
const resolvedLit = rlit < 0 ? (rnd(1 + Math.abs(_d)) < 11 && rn2(77) ? 1 : 0) : (rlit ? 1 : 0);
const roomNotNeeded = (rtype === OROOM && !irregular && !arrivalRoom && !game.in_mk_themerooms);
if (roomNotNeeded || (game.level.nroom ?? 0) >= MAXNROFROOMS) {
lightRegion(x1, y1, x2, y2, resolvedLit);
return null;
}
let rm = null;
if (irregular) {
rm = des_region(x1, y1, x2, y2, rtype, resolvedLit, true, filled);
} else {
add_room(x1, y1, x2, y2, resolvedLit, rtype, true);
rm = game.level.rooms?.[(game.level.nroom ?? 1) - 1] || null;
if (rm) topologize(rm);
}
if (!rm) return null;
rm.needfill = filled;
rm.needjoining = !!joined;
if (typeof args.contents === 'function') {
const out = withCurrentRoom(rm, () => args.contents(rm));
if (out && typeof out.then === 'function') await out;
}
// C ref: sp_lev.c:lspo_region() — always refresh room door metadata
// for created regions, regardless of whether contents callback exists.
addDoorsToRoom(rm);
return rm;
}
// des.trap — C ref: sp_lev.c:1838 create_trap()
export async function trap(args, x, y) {
args = normalizeTrapArgs(args, x, y);
const requestedType = (args.type ?? null);
const croomActive = !!ensureDesCoder()?.croom;
let tx = null;
let ty = null;
if (args.coord) {
[tx, ty] = toAbsCoord(args.coord);
} else if (game.currentRoom) {
if (croomActive) pushRngLogEntry('>somexy');
let tryct = 0;
do {
tx = rn1(game.currentRoom.hx - game.currentRoom.lx + 1, game.currentRoom.lx);
ty = rn1(game.currentRoom.hy - game.currentRoom.ly + 1, game.currentRoom.ly);
} while (!isOkLocation(tx, ty, DRY) && ++tryct < 100);
if (croomActive) pushRngLogEntry(`<somexy=${isOkLocation(tx, ty, DRY) ? 1 : 0}`);
} else {
// C ref: sp_lev.c create_trap() + get_location_coord(..., DRY,...)
// Retry for dry squares and avoid stairs/ladder.
const span = getLocationSpan();
let tryct = 0;
while (tryct <= 100) {
tx = rn2(span.sx) + span.mx;
ty = rn2(span.sy) + span.my;
if (!isOkLocation(tx, ty, DRY)) {
tryct++;
continue;
}
const typ = game.level?.at(tx, ty)?.typ ?? STONE;
if (typ === STAIRS || typ === LADDER) {
tryct++;
continue;
}
break;
}
if (tryct > 100) return;
}
// C ref: sp_lev.c:4320-4347 trap_types[] (exact name table).
const trapTypes = {
'arrow': 1,
'dart': 2,
'falling rock': 3,
'board': 4,
'bear': 5,
'land mine': 6,
'rolling boulder': 7,
'sleep gas': 8,
'rust': 9,
'fire': 10,
'pit': 11,
'spiked pit': 12,
'hole': 13,
'trap door': 14,
'teleport': 15,
'level teleport': 16,
'magic portal': 17,
'web': 18,
'statue': 19,
'magic': 20,
'anti magic': 21,
'polymorph': 22,
'vibrating square': 23,
'random': -1,
};
let trapNum = NO_TRAP;
let mktrapFlags = MKTRAP_MAZEFLAG;
if (args.spider_on_web === false) mktrapFlags |= MKTRAP_NOSPIDERONWEB;
if (args.seen) mktrapFlags |= MKTRAP_SEEN;
if (args.victim === false) mktrapFlags |= MKTRAP_NOVICTIM;
if (requestedType != null) {
if (Number.isFinite(requestedType)) {
trapNum = requestedType;
} else {
trapNum = trapTypes[String(requestedType).toLowerCase()] ?? NO_TRAP;
}
}
if (typeof requestedType === 'string' && trapNum === NO_TRAP) {
throw new Error(`Unknown trap type: ${requestedType}`);
}
trapNum = pickMktrapKind(trapNum, mktrapFlags);
// C ref: mklev.c:2079 — convert holes/trapdoors when Can_fall_thru is false
if (is_hole(trapNum) && !Can_fall_thru(game.u?.uz))
trapNum = ROCKTRAP;
// C ref: sp_lev.c:1846 create_trap → mktrap()
pushRngLogEntry('>mktrap');
// C ref: mklev.c mktrap() logs trap creation after type-specific side effects
// (spider/statue/victim), so suppress maketrap's immediate ^trap emission.
const ttmp = (tx != null && ty != null)
? await maketrap(tx, ty, trapNum, { suppressEvent: true })
: null;
const kind = ttmp ? ttmp.ttyp : NO_TRAP;
// C ref: mklev.c:2118-2120 — mktrap() tutorial return portal destination.
if (ttmp && kind === MAGIC_PORTAL
&& ((game.u?.ucamefrom?.dnum || 0) || (game.u?.ucamefrom?.dlevel || 0))) {
ttmp.dst.dnum = game.u.ucamefrom.dnum;
ttmp.dst.dlevel = game.u.ucamefrom.dlevel;
}
if (ttmp && (mktrapFlags & MKTRAP_SEEN)) {
ttmp.tseen = true;
}
// C ordering: ^trap is emitted after maketrap() initialization.
// For WEB traps, spider spawn happens in mktrap() after ^trap.
// mk_trap_statue is now handled inside maketrap() (trap.js),
// so STATUE_TRAP's ^trap event is also emitted from there.
if (ttmp && kind !== NO_TRAP) {
pushRngLogEntry(`^trap[${kind},${ttmp.tx},${ttmp.ty}]`);
}
if (kind === WEB && !(mktrapFlags & MKTRAP_NOSPIDERONWEB) && tx != null && ty != null) {
await makemon(mons[PM_GIANT_SPIDER], tx, ty, 0);
}
// mk_trap_statue for STATUE_TRAP is now handled inside maketrap() (trap.js)
{
if (game.in_mklev && ttmp && kind !== NO_TRAP && !(mktrapFlags & MKTRAP_NOVICTIM)) {
// C ref: mklev.c:2137 — uses level_difficulty(), not raw dlevel
const lvl = level_difficulty();
const roll = rnd(4);
const noBoulderPath = (kind === ROLLING_BOULDER_TRAP
&& ttmp.launch?.x === ttmp.tx && ttmp.launch?.y === ttmp.ty);
if (lvl <= roll
&& kind !== SQKY_BOARD && kind !== RUST_TRAP
&& !noBoulderPath
&& !is_pit(kind) && (kind < HOLE || kind === MAGIC_TRAP)) {
if (kind === LANDMINE) {
ttmp.ttyp = PIT;
ttmp.tseen = true;
}
mktrap_victim(ttmp);
}
}
}
pushRngLogEntry('<mktrap');
}
// C ref: sp_lev.c:3467 find_objtype()
// Strips class prefixes ("ring of ", "potion of ", etc.) and matches by oc_name.
function find_objtype(name, oclass) {
if (!name) return -1;
// RING_CLASS, POTION_CLASS, SCROLL_CLASS, SPBOOK_CLASS, WAND_CLASS
// imported from objects.js at top of file
const prefixes = [
{ prefix: 'ring of ', oclass: RING_CLASS },
{ prefix: 'potion of ', oclass: POTION_CLASS },
{ prefix: 'scroll of ', oclass: SCROLL_CLASS },
{ prefix: 'spellbook of ', oclass: SPBOOK_CLASS },
{ prefix: 'wand of ', oclass: WAND_CLASS },
];
let searchName = name;
let searchClass = 0;
if (name.includes(' of ')) {
for (const { prefix, oclass: cls } of prefixes) {
if (name.toLowerCase().startsWith(prefix)) {
searchClass = cls;
searchName = name.substring(prefix.length);
break;
}
}
}
// Find by oc_name
for (let i = 0; i < game.objects.length; i++) {
const od = game.objects[i];
if (!od) continue;
if (searchClass && od.oc_class !== searchClass) continue;
if (od.oc_name && od.oc_name.toLowerCase() === searchName.toLowerCase())
return i;
}
// Find by oc_descr
for (let i = 0; i < game.objects.length; i++) {
const od = game.objects[i];
if (!od) continue;
if (od.oc_descr && od.oc_descr.toLowerCase() === searchName.toLowerCase())
return i;
}
// Direct match without prefix stripping
for (let i = 0; i < game.objects.length; i++) {
const od = game.objects[i];
if (!od) continue;
if (od.oc_name && od.oc_name.toLowerCase() === name.toLowerCase())
return i;
}
return -1;
}
function def_char_to_monclass(ch) {
if (typeof ch !== 'string' || ch.length !== 1) return 0;
for (let i = 1; i < def_monsyms.length; i++) {
if ((def_monsyms[i]?.sym || '') === ch) return i;
}
return 0;
}
// des.object — C ref: sp_lev.c:2300 lspo_object()
// This is the most RNG-heavy function. Creates objects via mksobj_core/mkobj.
export async function object(args, x, y) {
args = normalizeObjectArgs(args, x, y);
const croomActive = !!ensureDesCoder()?.croom;
const named = !!args.name;
const isContained = containerObjStack.length > 0;
const carryingMonster = inventoryMonsterStack.length > 0
? inventoryMonsterStack[inventoryMonsterStack.length - 1]
: null;
const hasContentsField = Object.prototype.hasOwnProperty.call(args, 'contents')
&& args.contents !== null
&& args.contents !== undefined;
// C ref: sp_lev.c:2300 lspo_object → create_object
// C order: get_location FIRST (for positioning), THEN mksobj_core/mkobj.
// Step 1: Position — C ref: get_location_coord/get_location.
// If we're inside a room definition, random picks come from somex/somey.
// Otherwise random picks use map bounds rn2(sx), rn2(sy).
let randX = 0, randY = 0;
if (!args.coord) {
const pos = randomLocationWithHumidity(DRY, game.currentRoom, false);
if (pos) {
randX = pos.x;
randY = pos.y;
} else {
// keep C-shaped fallback behavior if location search fails
randX = game.x_maze_max ?? ((COLNO - 1) & ~1);
randY = game.y_maze_max ?? ((ROWNO - 1) & ~1);
}
}
// Step 2: Create object via mksobj_core or mkobj
let obj;
let objAlreadyPlaced = false;
let forcedCorpsenm = null;
let corpsenmDirective = null;
let speDirective = Number.isInteger(args.spe) ? args.spe : null;
const quantityDirective = Number.isInteger(args.quantity) ? args.quantity : null;
if (args.id) {
let otyp = find_objtype(args.id, args.class);
if (args.id === 'corpse' && args.montype) {
otyp = 265; // CORPSE
}
if ((otyp === STATUE || otyp === CORPSE) && speDirective == null) {
// C ref: sp_lev.c lspo_object() -> tmpobj.spe from
// historic/male/female flags (defaults to 0).
let lflags = 0;
if (args.historic) lflags |= CORPSTAT_HISTORIC;
if (args.male) lflags |= CORPSTAT_MALE;
if (args.female) lflags |= CORPSTAT_FEMALE;
speDirective = lflags;
}
if (otyp === STATUE || otyp === FIGURINE || otyp === CORPSE
|| otyp === EGG || otyp === TIN) {
const montype = typeof args.montype === 'string' ? args.montype : '';
// C ref: sp_lev.c:3682 lspo_object — TIN with montype "spinach"
// or "empty" (and EGG with "empty") short-circuits to a
// non-monster object: corpsenm=NON_PM and spe is 1 (spinach)
// or 0 (empty/generic egg).
const mtLow = montype.toLowerCase();
const isSpinachTin = otyp === TIN && mtLow === 'spinach';
const isEmptyTin = otyp === TIN && mtLow === 'empty';
const isEmptyEgg = otyp === EGG && mtLow === 'empty';
if (isSpinachTin || isEmptyTin || isEmptyEgg) {
forcedCorpsenm = NON_PM;
speDirective = isSpinachTin ? 1 : 0;
} else if (montype.length === 1) {
const monclass = def_char_to_monclass(montype);
if (monclass > 0) {
const pm = mkclass(monclass, G_NOGEN | G_IGNORE);
if (pm) {
const idx = mons.indexOf(pm);
if (idx >= 0) forcedCorpsenm = idx;
}
}
} else if (montype.length > 1) {
const mgender = { val: NEUTRAL };
let mndx = name_to_monplus(montype, null, mgender);
if (mndx < 0) {
const roleAlias = {
cavewoman: 'caveman',
priestess: 'priest',
};
const aliased = roleAlias[montype.toLowerCase()];
if (aliased) mndx = name_to_monplus(aliased, null, mgender);
}
if (mndx >= 0) forcedCorpsenm = mndx;
}
}
if (otyp >= 0) {
obj = mksobj_core(otyp, true, !named);
} else {
rnd(2); // unknown item fallback
return;
}
} else if (args.class) {
const oclass = def_char_to_objclass(args.class);
if (oclass === MAXOCLASSES) {
throw new Error(`create_object: unexpected object class '${args.class}'`);
}
if (oclass === COIN_CLASS) {
const [ax, ay] = args.coord ? toAbsCoord(args.coord) : [randX, randY];
obj = mkgold(0, ax, ay);
objAlreadyPlaced = true;
} else {
obj = mkobj(oclass, !named);
}
} else {
// C ref: create_object(): no class specified -> mkobj_at(RANDOM_CLASS,...)
obj = mkobj(RANDOM_CLASS, !named);
}
if (Number.isInteger(args.corpsenm)) {
corpsenmDirective = args.corpsenm;
} else if (forcedCorpsenm != null) {
corpsenmDirective = forcedCorpsenm;
}
// Step 3: Place on map (apply cvt_to_abscoord offset)
let pushedContainer = false;
if (obj) {
if (speDirective != null) {
obj.spe = speDirective;
}
// C ref: sp_lev.c:2234 — apply BUC (blessed/uncursed/cursed) state
if (args.buc) {
switch (args.buc) {
case 'blessed': bless(obj); break;
case 'uncursed': obj.blessed = false; obj.cursed = false; break;
case 'cursed': curse(obj); break;
case 'not-cursed': obj.cursed = false; break;
case 'not-blessed': obj.blessed = false; break;
case 'not-uncursed': blessorcurse(obj, 1); break;
// 'random' or default: keep mkobj result
}
}
// C ref: sp_lev.c create_object(): corpsenm is "empty" if NON_PM,
// random if NON_PM-1, otherwise specific PM index. For the explicit
// spinach/empty TIN and empty EGG cases (montype="spinach"/"empty"),
// we must force corpsenm=NON_PM to override any mksobj-picked mndx.
if (corpsenmDirective === NON_PM) {
obj.corpsenm = NON_PM;
} else if (corpsenmDirective != null) {
if (corpsenmDirective === NON_PM - 1) {
set_corpsenm(obj, rndmonnum());
} else {
set_corpsenm(obj, corpsenmDirective);
}
}
// C ref: sp_lev.c:2267-2268 — name the object (may create artifact)
if (named && args.name) {
obj = oname(obj, args.name, ONAME_LEVEL_DEF);
}
// C ref: sp_lev.c:create_object() — apply quantity only for
// mergeable object types (o->quan > 0 && objects[otyp].oc_merge).
if (quantityDirective != null
&& quantityDirective > 0
&& game.objects[obj.otyp]?.oc_merge) {
obj.quan = quantityDirective;
obj.owt = weight(obj);
}
// C ref: sp_lev.c:create_object() object table flags.
// Preserve locked/broken/trapped precedence exactly:
// - explicit locked 0/1 wins;
// - otherwise broken forces obroken=1 and olocked=0;
// - trapped and trap_known only apply when explicitly specified.
if (args.locked === false || args.locked === true) {
obj.olocked = args.locked ? 1 : 0;
} else if (args.broken) {
obj.obroken = 1;
obj.olocked = 0;
}
if (args.trapped === false || args.trapped === true) {
obj.otrapped = args.trapped ? 1 : 0;
}
if (args.trapped && (args.trap_known === false || args.trap_known === true)) {
obj.tknown = args.trap_known ? 1 : 0;
}
obj.greased = args.greased ? 1 : 0;
const [ax, ay] = args.coord ? toAbsCoord(args.coord) : [randX, randY];
if (!objAlreadyPlaced) {
place_object(obj, ax, ay);
}
if (isContained) {
const parent = containerObjStack[containerObjStack.length - 1];
// C: remove_object(otmp) then add_to_container — NOT obj_extract_self
remove_object(obj);
if (parent) {
obj.where = OBJ_CONTAINED;
obj.ocontainer = parent;
obj.nobj = parent.cobj || null;
parent.cobj = obj;
}
} else if (carryingMonster) {
// C ref: sp_lev.c:create_object() invent_carrying_monster path.
remove_object(obj);
await mpickobj(carryingMonster, obj);
}
if (hasContentsField) {
// C ref: sp_lev.c:2344-2345 — when a container has a Lua
// contents callback, C deletes the random items that mksobj_init
// (mkbox_cnts) already placed, so the callback starts with an
// empty container. Without this, JS would have both the random
// mkbox_cnts items AND the callback items.
delete_contents(obj);
obj.cobj = null;
containerObjStack.push(obj);
pushedContainer = true;
}
// C ref: sp_lev.c create_object() Medusa statue special case.
// Random statues on Medusa level become petrified monsters and can
// inherit that monster's inventory.
if (obj.otyp === STATUE && isMedusaLevel()
&& (args.montype == null || args.montype === '')
&& forcedCorpsenm == null) {
const createObjectRndmonnum = () => {
pushRngLogEntry('>rndmonnum');
const mndx = rndmonnum();
pushRngLogEntry(`<rndmonnum=${mndx}`);
return mndx;
};
let was = null;
let wastyp = (Number.isInteger(obj.corpsenm) && obj.corpsenm >= 0)
? obj.corpsenm
: createObjectRndmonnum();
for (let i = 0; i < 1000; i++, wastyp = createObjectRndmonnum()) {
const pm = mons[wastyp] || null;
was = await makemon(pm, 0, 0, MM_NOCOUNTBIRTH | MM_NOMSG);
if (!was) continue;
if (!resists_ston(was) && !poly_when_stoned(mons[wastyp])) {
break;
}
unlinkMonster(was);
was = null;
}
if (was) {
if (wastyp >= 0) obj.corpsenm = wastyp;
while (was.minvent) {
const inv = was.minvent;
was.minvent = inv.nobj || null;
inv.nobj = obj.cobj || null;
inv.where = OBJ_CONTAINED;
inv.ocontainer = obj;
obj.cobj = inv;
}
unlinkMonster(was);
}
}
}
// C ref: sp_lev.c:2423-2438 — stackobj + burial happen BEFORE the
// contents callback. In C, create_object returns to Lua, which then
// runs the callback. So the object is stacked and buried before any
// contents are added. We must match this order.
if (obj && !isContained) {
stackobj(obj);
// C ref: sp_lev.c create_object() o->buried path: calls bury_an_obj
// after stackobj, which calls obj_resists(otmp, 0, 0) (consumes rn2)
// and then buries the object.
if (args.buried) {
const dealloced_ref = { value: false };
bury_an_obj(obj, dealloced_ref);
if (dealloced_ref.value) {
obj = null;
}
}
}
// Step 4: Contents callback (for containers)
// C ref: In C, create_object() returns to Lua AFTER burial. Then Lua
// runs the contents callback. We run it here, after burial, to match.
if (obj && typeof args.contents === 'function') {
const out = args.contents(obj);
if (out && typeof out.then === 'function') {
await out;
}
}
if (pushedContainer) {
containerObjStack.pop();
}
// Attach Lua-style timer methods for themed room contents functions.
// C ref: nhlib.lua obj:stop_timer(name) and obj:start_timer(name, time)
// map to timeout.c stop_timer(func_index, arg) / start_timer(when, TIMER_OBJECT, func_index, arg).
if (obj) {
const _timerNameMap = { 'rot-corpse': ROT_CORPSE, 'zombify-mon': ZOMBIFY_MON };
obj.stop_timer = function(name) {
const tp = _timerNameMap[name];
if (tp !== undefined) stop_timer(tp, { a_obj: obj });
};
obj.start_timer = function(name, time) {
const tp = _timerNameMap[name];
if (tp !== undefined) start_timer(time, TIMER_OBJECT, tp, { a_obj: obj });
};
}
return obj;
}
// des.monster — C ref: sp_lev.c:3147 lspo_monster()
export async function monster(args, x, y) {
args = normalizeMonsterArgs(args, x, y);
const hasRandomCoord = Array.isArray(args.coord)
&& args.coord.length >= 2
&& args.coord[0] === -1
&& args.coord[1] === -1;
const debugMonsterCoord = typeof process !== 'undefined'
&& process?.env?.SPLEV_MON_COORD_DEBUG === '1';
// C ref: sp_lev.c:1925 create_monster
// 1. find_montype to resolve name → PM index
// 2. induced_align for alignment
// 3. makemon for creation (heavy RNG)
let mndx = -1;
let classSym = 0;
// C ref: sp_lev.c:3230 — gender determined here, applied after makemon.
const mgender = { val: NEUTRAL };
if (typeof args.class === 'string' && args.class.length === 1) {
classSym = def_char_to_monclass(args.class);
}
if (args.id) {
// C ref: sp_lev.c find_montype/name_to_monplus gender flow.
mndx = name_to_monplus(args.id, null, mgender);
if (mndx >= 0) {
if (is_male(mons[mndx]) || is_female(mons[mndx])) {
mgender.val = is_female(mons[mndx]) ? FEMALE : MALE;
} else {
mgender.val = (mgender.val === FEMALE) ? FEMALE
: (mgender.val === MALE) ? MALE : rn2(2);
}
}
}
// C ref: sp_lev.c create_monster(): amask = sp_amask_to_amask(m->sp_amask)
// This consumes RNG only for RANDOM/COALIGNED/NONCOALIGNED align modes.
const tableAlign = getTableAlign(args.align ?? args.aligned);
const _amask = spAmaskToAmask(tableAlign);
let ptr = null;
let forceRandom = false;
if (mndx >= 0) {
const pm = mons[mndx];
const gMvflags = game.mvitals?.[mndx]?.mvflags ?? 0;
// C ref: sp_lev.c:1949-1953 create_monster() explicit id handling.
if ((pm?.geno & G_UNIQ) && (gMvflags & G_EXTINCT))
return;
if (gMvflags & G_GONE)
forceRandom = true;
else
ptr = pm;
} else if (classSym > 0 && !forceRandom) {
ptr = mkclass(classSym, G_NOGEN) || null;
}
// C ref: sp_lev.c create_monster() race-monster randomization in Mines.
if (In_mines(game.u?.uz) && ptr && your_race(ptr)
&& (Race_if(PM_DWARF) || Race_if(PM_GNOME)) && rn2(3)) {
ptr = null;
}
let ax;
let ay;
if (debugMonsterCoord) {
const coordStr = Array.isArray(args.coord) ? `${args.coord[0]},${args.coord[1]}` : 'none';
pushRngLogEntry(`^dbg_moncoord[id=${args.id || ''} class=${args.class || ''} coord=${coordStr} random=${hasRandomCoord ? 1 : 0}]`);
const cr = game.currentRoom;
if (cr) {
pushRngLogEntry(`^dbg_monroom[lx=${cr.lx} ly=${cr.ly} hx=${cr.hx} hy=${cr.hy} nsub=${cr.nsubrooms || 0}]`);
} else {
pushRngLogEntry('^dbg_monroom[none]');
}
const hdbg = ptr ? pmToHumidityFlags(ptr) : DRY;
pushRngLogEntry(`^dbg_montype[classSym=${classSym} mndx=${mndx} ptr=${ptr ? (ptr.mname || '') : ''} mlet=${ptr ? (ptr.mlet || '') : ''} h=${hdbg} sx=${game.sp_xstart ?? -1} sy=${game.sp_ystart ?? -1} sw=${game.sp_xsize ?? -1} sh=${game.sp_ysize ?? -1}]`);
}
if (args.coord && !hasRandomCoord) {
[ax, ay] = toAbsCoord(args.coord);
} else {
const humidity = ptr ? pmToHumidityFlags(ptr) : DRY;
let pos = randomLocationCoordLikeC(humidity, game.currentRoom);
if (!pos && ptr) {
// C ref: create_monster() fallback loc |= DRY.
pos = randomLocationCoordLikeC(humidity | DRY, game.currentRoom);
} else if (!pos) {
pos = randomLocationCoordLikeC(DRY, game.currentRoom);
}
if (!pos) return;
ax = pos.x;
ay = pos.y;
}
// C ref: sp_lev.c:1976-1978 — if occupied, try adjacent relocation.
const occupiedAtChoice = !!m_at(ax, ay);
if (occupiedAtChoice) {
const cc = { x: 0, y: 0 };
if (enexto_core(cc, ax, ay, ptr, GP_CHECKSCARY | GP_AVOID_MONPOS)) {
ax = cc.x;
ay = cc.y;
}
}
// C ref: sp_lev.c:1981-1982 create_monster().
if (game.currentRoom && !inside_room(game.currentRoom, ax, ay)) {
return;
}
let mmFlags = Number.isInteger(args.mm_flags) ? args.mm_flags : 0;
if (args.tail === false) mmFlags |= MM_NOTAIL;
if (args.group === false) mmFlags |= MM_NOGRP;
if (args.adjacentok === true) mmFlags |= MM_ADJACENTOK;
if (args.ignorewater === true) mmFlags |= MM_IGNOREWATER;
if (args.countbirth === false) mmFlags |= MM_NOCOUNTBIRTH;
let mtmp = null;
// C ref: sp_lev.c:1984-1989 create_monster().
if (tableAlign !== AM_SPLEV_RANDOM) {
const roamerAlign = Amask2align(_amask);
const roamerPeaceful = (args.peaceful === 0 || args.peaceful === false) ? 0 : 1;
mtmp = await mk_roamer(ptr, roamerAlign, ax, ay, roamerPeaceful);
} else if (mndx >= PM_ARCHEOLOGIST && mndx <= PM_WIZARD) {
mtmp = await mk_mplayer(ptr, ax, ay, false);
} else {
mtmp = await makemon(ptr, ax, ay, mmFlags);
}
if (!mtmp) return;
// C ref: sp_lev.c:2126 — override makemon's rn2(2) gender with
// the sp_lev rn2(2) gender determined earlier. Both C and JS
// consume two rn2(2) calls per monster (sp_lev + makemon), but
// C uses sp_lev's result while JS was using makemon's.
if (mgender.val === FEMALE) mtmp.female = true;
else if (mgender.val === MALE) mtmp.female = false;
if (args.peaceful === 0 || args.peaceful === 1)
mtmp.mpeaceful = !!args.peaceful;
if (args.asleep === 0 || args.asleep === 1 || args.asleep === true || args.asleep === false)
mtmp.msleeping = args.asleep ? 1 : 0;
if (args.waiting)
mtmp.mstrategy |= STRAT_WAITFORU;
// C ref: sp_lev.c:2162-2166 — waiting vampshifter reverts to base form via newcham().
if (args.waiting && vampshifted(mtmp) && is_vampshifter(mtmp)) {
const base = mtmp.cham;
if (base >= 0 && base < mons.length) {
apply_init_newcham(mtmp, base);
}
}
if (args.cancelled)
mtmp.mcan = 1;
if (args.revived)
mtmp.mrevived = 1;
if (args.avenge)
mtmp.mavenge = 1;
if (args.stunned)
mtmp.mstun = 1;
if (args.confused)
mtmp.mconf = 1;
if (args.invisible) {
mtmp.minvis = 1;
mtmp.perminvis = 1;
}
if (args.blinded) {
mtmp.mcansee = 0;
mtmp.mblinded = args.blinded % 127;
}
if (args.paralyzed) {
mtmp.mcanmove = 0;
mtmp.mfrozen = args.paralyzed % 127;
}
if (args.fleeing) {
mtmp.mflee = 1;
mtmp.mfleetim = args.fleeing % 127;
}
const hasCustomInventory = typeof args.inventory === 'function';
const keepDefaultInventory = !!args.keep_default_invent;
// C ref: sp_lev.c:2177-2186 create_monster() inventory policy:
// custom inventory drops default minvent unless keep_default_invent=true.
if (hasCustomInventory && !keepDefaultInventory) {
await mdrop_special_objs(mtmp);
while (mtmp.minvent) {
const otmp = mtmp.minvent;
await extract_from_minvent(mtmp, otmp, true, true);
obfree(otmp, null);
}
}
if (hasCustomInventory) {
inventoryMonsterStack.push(mtmp);
try {
const out = args.inventory(mtmp);
if (out && typeof out.then === 'function') {
await out;
}
} finally {
inventoryMonsterStack.pop();
}
// C ref: sp_lev.c:3037-3041 spo_end_moninvent().
await m_dowear(mtmp, true);
}
}
export function gold(args, x, y) {
let amount = -1;
let coord = null;
if (typeof args === 'number') {
amount = args;
coord = normalizeCoordPair(null, x, y);
} else if (args && typeof args === 'object') {
amount = Number.isFinite(args.amount) ? args.amount : -1;
coord = normalizeCoordPair(args.coord, args.x, args.y);
} else {
coord = normalizeCoordPair(null, x, y);
}
let pos = null;
if (coord) {
const abs = toAbsCoord(coord);
if (abs && isok(abs[0], abs[1])) {
pos = { x: abs[0], y: abs[1] };
}
} else {
// C ref: lspo_gold() -> get_location_coord(..., DRY, croom, ...)
pos = randomLocationWithHumidity(DRY, game.currentRoom, false);
}
if (!pos) return null;
if (amount < 0) {
amount = rnd(200);
}
return mkgold(amount, pos.x, pos.y);
}
function roomFromPos(x, y, wantedType = null) {
// game.level.rooms is where des_region/add_room stores rooms during level gen
const rooms = game.level.rooms || [];
let fallback = null;
for (let i = 0; i < (game.level.nroom || rooms.length); i++) {
const r = rooms[i];
if (!r || !(x >= r.lx && x <= r.hx && y >= r.ly && y <= r.hy)) {
continue;
}
if (wantedType == null || r.rtype === wantedType) {
return r;
}
if (!fallback) fallback = r;
}
return fallback;
}
export async function altar(args = {}) {
const coord = normalizeCoordPair(args.coord, args.x, args.y);
const pos = chooseSplevCoord('dry', coord);
if (!pos) return null;
const loc = game.level?.at(pos.x, pos.y);
if (!loc) return null;
loc.typ = ALTAR;
const rawAlign = args.align ?? args.aligned;
const tableAlign = getTableAlign(rawAlign);
// TODO(parity): C consumes a second noncoalignment() rn2(2) before
// first object placement on this seed/path; preserve current parity
// until the missing structural callsite is identified.
if (tableAlign === AM_SPLEV_NONCO) {
spAmaskToAmask(tableAlign);
}
let mask = spAmaskToAmask(tableAlign);
const type = String(args.type || 'altar').toLowerCase();
loc.flags = mask;
// C ref: sp_lev.c:2474-2487 — shrine/sanctum handling
// Determine shrine value: 0=altar, 1=shrine, 2=sanctum, -1=random
let shrine = (type === 'shrine') ? 1 : (type === 'sanctum') ? 2 : 0;
if (shrine < 0) shrine = rn2(2); // random case
// Check if altar is in a temple room
// C ref: lspo_altar() receives croom from current generation context.
// During nested des.makeRoom contents, room may not yet be in
// game.level.rooms, so prefer active currentRoom over global lookup.
const activeRoom = game.currentRoom;
const activeIsTempleAtPos = !!activeRoom
&& activeRoom.rtype === TEMPLE
&& pos.x >= activeRoom.lx && pos.x <= activeRoom.hx
&& pos.y >= activeRoom.ly && pos.y <= activeRoom.hy;
const croom = activeIsTempleAtPos
? activeRoom
: roomFromPos(pos.x, pos.y, TEMPLE);
const croom_is_temple = croom && croom.rtype === TEMPLE;
if (croom_is_temple && shrine) {
await priestini(game.u?.uz, croom, pos.x, pos.y, shrine > 1);
loc.flags |= AM_SHRINE;
if (shrine === 2) loc.flags |= AM_SANCTUM;
if (game.level?.flags) game.level.flags.has_temple = true;
}
return { x: pos.x, y: pos.y };
}
export function grave(...args) {
let coord = null;
let text = null;
if (args.length === 3 && Number.isFinite(args[0]) && Number.isFinite(args[1])) {
coord = normalizeCoordPair(null, args[0], args[1]);
text = args[2] ?? null;
} else if (args.length >= 1 && args[0] && typeof args[0] === 'object' && !(args[0] instanceof SelectionVar)) {
const opts = args[0];
coord = normalizeCoordPair(opts.coord, opts.x, opts.y);
text = typeof opts.text === 'string' ? opts.text : null;
}
const pos = chooseSplevCoord('dry', coord && coord[0] === -1 && coord[1] === -1 ? null : coord);
if (!pos) return null;
const loc = game.level?.at(pos.x, pos.y);
if (!loc || t_at(pos.x, pos.y)) return null;
make_grave(pos.x, pos.y, text);
return { x: pos.x, y: pos.y };
}
export function feature(args, x, y) {
let type;
let coord;
let flagsSource = null;
if (typeof args === 'string') {
type = args;
coord = normalizeCoordPair(x, null, null);
if (!coord) coord = normalizeCoordPair(null, x, y);
} else {
flagsSource = args || {};
type = flagsSource.type;
coord = normalizeCoordPair(flagsSource.coord, flagsSource.x, flagsSource.y);
}
const typeMap = {
fountain: FOUNTAIN,
sink: SINK,
pool: POOL,
throne: THRONE,
tree: TREE,
};
const typ = typeMap[String(type || '').toLowerCase()];
if (!typ) return null;
const pos = chooseSplevCoord(coord ? 'any' : 'dry', coord);
if (!pos) return null;
const loc = game.level?.at(pos.x, pos.y);
if (!loc) return null;
if (IS_FURNITURE(loc.typ)) return null;
if (!set_levltyp(pos.x, pos.y, typ)) return null;
if (!flagsSource) return { x: pos.x, y: pos.y };
switch (typ) {
case FOUNTAIN:
if ('looted' in flagsSource) loc.flags = flagsSource.looted ? (loc.flags | F_LOOTED) : (loc.flags & ~F_LOOTED);
if ('warned' in flagsSource) loc.flags = flagsSource.warned ? (loc.flags | F_WARNED) : (loc.flags & ~F_WARNED);
break;
case SINK:
if ('pudding' in flagsSource) loc.flags = flagsSource.pudding ? (loc.flags | S_LPUDDING) : (loc.flags & ~S_LPUDDING);
if ('dishwasher' in flagsSource) loc.flags = flagsSource.dishwasher ? (loc.flags | S_LDWASHER) : (loc.flags & ~S_LDWASHER);
if ('ring' in flagsSource) loc.flags = flagsSource.ring ? (loc.flags | S_LRING) : (loc.flags & ~S_LRING);
break;
case THRONE:
if ('looted' in flagsSource) loc.flags = flagsSource.looted ? (loc.flags | T_LOOTED) : (loc.flags & ~T_LOOTED);
break;
case TREE:
if ('looted' in flagsSource) loc.flags = flagsSource.looted ? (loc.flags | TREE_LOOTED) : (loc.flags & ~TREE_LOOTED);
if ('swarm' in flagsSource) loc.flags = flagsSource.swarm ? (loc.flags | TREE_SWARM) : (loc.flags & ~TREE_SWARM);
break;
default:
break;
}
return { x: pos.x, y: pos.y };
}
export function levregion(args = {}) {
const typeMap = {
'stair-down': LR_DOWNSTAIR,
'stair-up': LR_UPSTAIR,
portal: LR_PORTAL,
branch: LR_BRANCH,
teleport: LR_TELE,
'teleport-up': LR_UPTELE,
'teleport-down': LR_DOWNTELE,
};
const lregion = getLregion(args);
if (!lregion) return null;
lregion.rtype = typeMap[String(args.type || 'stair-down').toLowerCase()] ?? LR_DOWNSTAIR;
lregion.padding = args.padding ?? 0;
lregion.rname = { str: args.name ?? null };
levregionAdd(lregion);
return lregion;
}
export function wallify(args) {
let x1 = -1, y1 = -1, x2 = -1, y2 = -1;
if (args && typeof args === 'object') {
x1 = args.x1 ?? -1;
y1 = args.y1 ?? -1;
x2 = args.x2 ?? -1;
y2 = args.y2 ?? -1;
}
const span = getLocationSpan();
wallifyMap(
x1 < 0 ? (span.mx - 1) : x1,
y1 < 0 ? (span.my - 1) : y1,
x2 < 0 ? (span.mx + span.sx + 1) : x2,
y2 < 0 ? (span.my + span.sy + 1) : y2,
);
}
function wallifyMap(x1, y1, x2, y2) {
// C ref: sp_lev.c wallify_map()
const map = game.level;
if (!map) return;
const minX = Math.max(1, x1);
const minY = Math.max(0, y1);
const maxX = Math.min(COLNO - 1, x2);
const maxY = Math.min(ROWNO - 1, y2);
for (let y = minY; y <= maxY; y++) {
const loY = (y > 0) ? (y - 1) : 0;
const hiY = (y < maxY) ? (y + 1) : maxY;
for (let x = minX; x <= maxX; x++) {
const loc = map.at(x, y);
if (!loc || loc.typ !== STONE) continue;
const loX = (x > 1) ? (x - 1) : 1;
const hiX = (x < maxX) ? (x + 1) : maxX;
let found = false;
for (let yy = loY; yy <= hiY && !found; yy++) {
for (let xx = loX; xx <= hiX; xx++) {
const near = map.at(xx, yy);
if (!near) continue;
if (IS_ROOM(near.typ) || near.typ === CROSSWALL) {
loc.typ = (yy !== y) ? HWALL : VWALL;
found = true;
break;
}
}
}
}
}
}
// des.room — C ref: sp_lev.c:4028 lspo_room()
// Creates a room during themed room generation.
export async function makeRoom(args) {
const coder = ensureDesCoder();
if (game.in_mk_themerooms && game.themeroom_failed) {
return;
}
if (coder.n_subroom > MAX_NESTED_ROOMS) {
throw new Error('Too deeply nested rooms');
}
const coord = normalizeCoordPair(args?.coord, args?.x, args?.y);
const x = coord ? coord[0] : -1;
const y = coord ? coord[1] : -1;
if ((x === -1 || y === -1) && x !== y) {
throw new Error('Room must have both x and y');
}
const hasW = Number.isFinite(args?.w);
const hasH = Number.isFinite(args?.h);
if (hasW !== hasH) {
throw new Error('Room must have both w and h');
}
const roomSpec = {
x,
y,
w: hasW ? args.w : -1,
h: hasH ? args.h : -1,
xalign: ROOM_XALIGN[String(args?.xalign ?? 'random').toLowerCase()] ?? -1,
yalign: ROOM_YALIGN[String(args?.yalign ?? 'random').toLowerCase()] ?? -1,
rtype: getRoomTypeOpt(args?.type),
chance: args?.chance ?? 100,
rlit: args?.lit ?? -1,
needfill: args?.filled ?? (game.in_mk_themerooms ? 0 : 1),
joined: args?.joined ?? true,
};
if (!coder.failed_room[coder.n_subroom - 1]) {
const room = buildRoom(roomSpec, coder.croom);
if (room) {
const n = coder.n_subroom;
coder.tmproomlist[n] = room;
coder.failed_room[n] = false;
if (coder.tmproomlist[n - 1]) {
coder.tmproomlist[n - 1].irregular = true;
}
coder.n_subroom++;
updateCroom();
if (typeof args?.contents === 'function') {
// C ref: sp_lev.c Lua mkroom binding exposes .width and .height
// as computed fields (hx-lx+1 and hy-ly+1). Contents callbacks
// like the Mausoleum's inner room use these to compute positions.
if (!Number.isFinite(room.width)) room.width = room.hx - room.lx + 1;
if (!Number.isFinite(room.height)) room.height = room.hy - room.ly + 1;
const out = withCurrentRoom(room, () => args.contents(room));
if (out && typeof out.then === 'function') await out;
}
spoEndroom(coder);
addDoorsToRoom(room);
return;
}
if (game.in_mk_themerooms) {
game.themeroom_failed = true;
}
}
coder.tmproomlist[coder.n_subroom] = null;
coder.failed_room[coder.n_subroom] = true;
coder.n_subroom++;
updateCroom();
spoEndroom(coder);
if (game.in_mk_themerooms) {
game.themeroom_failed = true;
}
}
// Allow sp_lev to set the "current room" for coordinate offsets
// C ref: sp_lev.c croom context — must update both _currentRoom and coder.croom
// so that croomActive is true and >somexy/<somexy=1 midlogs get emitted.
export function setCurrentRoom(rm) {
game.currentRoom = rm;
ensureDesCoder().croom = rm ?? null;
}
// Stubs for des.* functions used by themerms.js fill callbacks.
export function exclusion(args = {}) {
const typeMap = {
teleport: LR_TELE,
'teleport-up': LR_UPTELE,
'teleport-down': LR_DOWNTELE,
'monster-generation': LR_MONGEN,
};
const region = [...(args.region || [0, 0, 0, 0])];
const p1 = chooseFilteredCoord([region[0], region[1]], () => true);
const p2 = chooseFilteredCoord([region[2], region[3]], () => true);
if (!p1 || !p2) return null;
const zone = {
zonetype: typeMap[String(args.type || 'teleport').toLowerCase()] ?? LR_TELE,
lx: p1.x,
ly: p1.y,
hx: p2.x,
hy: p2.y,
};
if (!Array.isArray(game.level?.exclusionZones)) return zone;
game.level.exclusionZones.push(zone);
return zone;
}
export function gas_cloud(args = {}) {
if (!args || typeof args !== 'object') return null;
let cloud = null;
if (args.selection instanceof SelectionVar) {
cloud = {
points: args.selection.points.map((pt) => ({ x: pt.x, y: pt.y })),
};
} else {
const coord = normalizeCoordPair(args.coord, args.x, args.y);
const pos = chooseFilteredCoord(coord, () => true);
if (!pos) return null;
cloud = { x: pos.x, y: pos.y, radius: 1 };
}
cloud.damage = args.damage ?? 0;
cloud.ttl = args.ttl ?? -2;
if (!Array.isArray(game.level?.gasClouds)) return cloud;
game.level.gasClouds.push(cloud);
return cloud;
}
function fullLevelSelection() {
const points = [];
for (let x = 1; x < COLNO; x++) {
for (let y = 0; y < ROWNO; y++) {
points.push({ x, y });
}
}
return new SelectionVar(points);
}
function regionSelection(args = {}) {
const region = args.region || [args.x1, args.y1, args.x2, args.y2];
if (!Array.isArray(region) || region.length < 4) return null;
const p1 = chooseFilteredCoord([region[0], region[1]], () => true);
const p2 = chooseFilteredCoord([region[2], region[3]], () => true);
if (!p1 || !p2) return null;
const lx = Math.min(p1.x, p2.x);
const hx = Math.max(p1.x, p2.x);
const ly = Math.min(p1.y, p2.y);
const hy = Math.max(p1.y, p2.y);
const points = [];
for (let x = lx; x <= hx; x++) {
for (let y = ly; y <= hy; y++) {
points.push({ x, y });
}
}
return new SelectionVar(points);
}
function parseMatchMapChr(s) {
if (typeof s !== 'string' || s.length !== 1) return -1;
if (s === 'w') return MATCH_WALL;
return splev_chr2typ(s);
}
function matchMapTyps(matchTyp, levlTyp) {
if (matchTyp === MATCH_WALL) return IS_STWALL(levlTyp);
if (matchTyp === MAX_TYPE) return true;
return matchTyp === levlTyp;
}
function mapfragFromStr(str) {
if (typeof str !== 'string') return null;
const data = str.replace(/[0-9]/g, '');
const rows = data.split('\n');
if (rows.length && rows[rows.length - 1] === '') rows.pop();
const wid = rows.reduce((m, row) => Math.max(m, row.length), 0);
const hei = rows.length;
if (!(wid % 2) || !(hei % 2) || wid < 1 || hei < 1) return null;
return { rows, wid, hei };
}
function mapfragGet(mf, x, y) {
const row = mf.rows[y] || '';
const ch = row[x] ?? '\0';
return parseMatchMapChr(ch);
}
function mapfragMatch(mf, x, y) {
const xoff = Math.trunc(mf.wid / 2);
const yoff = Math.trunc(mf.hei / 2);
for (let rx = -xoff; rx <= xoff; rx++) {
for (let ry = -yoff; ry <= yoff; ry++) {
const mapc = mapfragGet(mf, rx + xoff, ry + yoff);
const levc = isok(x + rx, y + ry) ? game.level?.at(x + rx, y + ry)?.typ : STONE;
if (!matchMapTyps(mapc, levc)) return false;
}
}
return true;
}
export function replace_terrain(args = {}) {
const totyp = parseMatchMapChr(args.toterrain);
if (totyp < 0 || totyp >= MAX_TYPE) return;
const chance = args.chance ?? 100;
const tolit = args.lit ?? SET_LIT_NOCHANGE;
const fromtyp = args.fromterrain != null ? parseMatchMapChr(args.fromterrain) : -1;
const mapfrag = fromtyp < 0 ? mapfragFromStr(args.mapfragment) : null;
if (fromtyp < 0 && !mapfrag) return;
let sel = null;
if (args.selection instanceof SelectionVar) sel = args.selection;
else sel = regionSelection(args);
if (!sel) sel = fullLevelSelection();
const terr = { ter: totyp, tlit: tolit };
for (const pt of sel.points) {
const loc = game.level?.at(pt.x, pt.y);
if (!loc) continue;
const matches = mapfrag
? mapfragMatch(mapfrag, pt.x, pt.y)
: matchMapTyps(fromtyp, loc.typ);
if (!matches) continue;
if (rn2(100) >= chance) continue;
setTerrainCell(pt.x, pt.y, terr);
}
}
function setTerrainCell(x, y, terr) {
const loc = game.level?.at(x, y);
if (!loc) return;
setLevlTypLit(x, y, terr.ter, terr.tlit);
loc.icedpool = 0;
if (loc.typ === SDOOR || IS_DOOR(loc.typ)) {
if (loc.typ === SDOOR) loc.flags = D_CLOSED;
if (x > 0) {
const left = game.level?.at(x - 1, y);
if (left && (IS_WALL(left.typ) || left.horizontal)) loc.horizontal = 1;
}
} else if (loc.typ === HWALL || loc.typ === IRONBARS) {
loc.horizontal = 1;
} else if (game.splev_init_present && loc.typ === ICE) {
loc.icedpool = game.icedpools ? ICED_POOL : ICED_MOAT;
} else if (loc.typ === CLOUD) {
game.level.engravings = game.level.engravings.filter((e) => !(e.x === x && e.y === y));
}
}
export function terrain(arg1, arg2, arg3) {
const terr = { tlit: SET_LIT_NOCHANGE, ter: -1 };
let sel = null;
let x = 0, y = 0;
if (arguments.length === 1 && arg1 && typeof arg1 === 'object' && !(arg1 instanceof SelectionVar)) {
const tx = arg1.x ?? arg1.coord?.[0] ?? -1;
const ty = arg1.y ?? arg1.coord?.[1] ?? -1;
x = tx;
y = ty;
if (tx === -1 && ty === -1 && arg1.selection instanceof SelectionVar) {
sel = arg1.selection;
}
terr.ter = splev_chr2typ(arg1.typ);
terr.tlit = arg1.lit ?? SET_LIT_NOCHANGE;
} else if (arguments.length === 2 && arg1 && typeof arg1 === 'object' && !(arg1 instanceof SelectionVar)) {
const coord = normalizeCoordPair(arg1, arg1?.x, arg1?.y);
if (!coord) return;
[x, y] = coord;
terr.ter = splev_chr2typ(arg2);
} else if (arguments.length >= 2 && arg1 instanceof SelectionVar) {
sel = arg1;
terr.ter = splev_chr2typ(arg2);
if (arguments.length >= 3) terr.tlit = arg3;
} else if (arguments.length === 3) {
x = arg1;
y = arg2;
terr.ter = splev_chr2typ(arg3);
} else {
return;
}
if (terr.ter < 0 || terr.ter >= MAX_TYPE) return;
if (sel) {
for (const pt of sel.points) setTerrainCell(pt.x, pt.y, terr);
return;
}
const coord = chooseFilteredCoord([x, y], () => true);
if (!coord) return;
setTerrainCell(coord.x, coord.y, terr);
}
export default {
splev_chr2typ, des_map, des_region, selection, percent,
shuffle, levelState, nh, initLuaMT,
// des.* API for level scripts
level_init, level_flags, map: des_map, region, makeRoom,
non_diggable, teleport_region, finalize_level, message,
non_passwall,
stair, ladder, engraving, door, trap, object, monster, gold, levregion,
setCurrentRoom,
altar, corridor, exclusion, feature, gas_cloud, grave, replace_terrain, terrain, wallify,
drawbridge, mazewalk, random_corridors,
};
export function init_sp_lev_globals() {
game.currentRoom = null;
game.sqkyBoardCount = 0;
}
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