Press n or j to go to the next uncovered block, b, p or k for the previous block.
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// C ref: wizard.c — 885 lines
//
// Strategy and tactics for the Wizard and other covetous monsters.
import { game } from './gstate.js';
import { rn2, rnd } from './rng.js';
import { pline } from './pline.js';
import { AMULET_OF_YENDOR, BELL_OF_OPENING, CANDELABRUM_OF_INVOCATION, SPE_BOOK_OF_THE_DEAD } from './objects.js';
import { PM_WIZARD_OF_YENDOR, M3_WANTSAMUL, M3_WANTSBELL, M3_WANTSBOOK, M3_WANTSCAND, M3_WANTSARTI, mons } from './monsters.js';
import { is_covetous } from './mondata.js';
import { STRAT_NONE, STRAT_HEAL, STRAT_GROUND, STRAT_MONSTR, STRAT_PLAYER, STRAT_STRATMASK, STRAT_GOAL, STRAT_WAITMASK, STRAT_APPEARMSG, BOLT_LIM, isok, u_at, RLOC_MSG } from './const.js';
import { any_quest_artifact } from './artifact.js';
import { stairway_find_type_dir } from './stairs.js';
import { inhishop } from './shk.js';
import { inhistemple } from './priest.js';
import { monnear, dist2 } from './hacklib.js';
import { rloc, rloc_to } from './teleport.js';
import { noteleport_level } from './teleport.js';
import { m_at } from './map_access.js';
import { mnexto, healmon } from './mon.js';
import { mnearto } from './monmove.js';
// ── amulet: check if hero has the Amulet of Yendor ──
export function amulet() {
return !!game.u?.uhave?.amulet;
}
// C ref: wizard.c:106 mon_has_amulet
export function mon_has_amulet(mtmp) {
for (let otmp = mtmp?.minvent; otmp; otmp = otmp.nobj) {
if (otmp.otyp === AMULET_OF_YENDOR) return 1;
}
return 0;
}
// C ref: wizard.c:116 mon_has_special
export function mon_has_special(mtmp) {
for (let otmp = mtmp?.minvent; otmp; otmp = otmp.nobj) {
if (otmp.otyp === AMULET_OF_YENDOR
|| any_quest_artifact(otmp)
|| otmp.otyp === BELL_OF_OPENING
|| otmp.otyp === CANDELABRUM_OF_INVOCATION
|| otmp.otyp === SPE_BOOK_OF_THE_DEAD)
return 1;
}
return 0;
}
// C ref: wizard.c:142 which_arti
function which_arti(mask) {
switch (mask) {
case M3_WANTSAMUL: return AMULET_OF_YENDOR;
case M3_WANTSBELL: return BELL_OF_OPENING;
case M3_WANTSCAND: return CANDELABRUM_OF_INVOCATION;
case M3_WANTSBOOK: return SPE_BOOK_OF_THE_DEAD;
default: break;
}
return 0; // quest artifact
}
// C ref: wizard.c:164 mon_has_arti
function mon_has_arti(mtmp, otyp) {
for (let otmp = mtmp?.minvent; otmp; otmp = otmp.nobj) {
if (otyp) {
if (otmp.otyp === otyp) return true;
} else if (any_quest_artifact(otmp)) return true;
}
return false;
}
// C ref: wizard.c:183 other_mon_has_arti
function other_mon_has_arti(mtmp, otyp) {
for (let mtmp2 = game.level?.monlist; mtmp2; mtmp2 = mtmp2.nmon) {
if (mtmp2 !== mtmp && mon_has_arti(mtmp2, otyp))
return mtmp2;
}
return null;
}
// C ref: wizard.c:201 on_ground
function on_ground(otyp) {
for (let otmp = game.level?.objlist; otmp; otmp = otmp.nobj) {
if (otyp) {
if (otmp.otyp === otyp) return otmp;
} else if (any_quest_artifact(otmp)) return otmp;
}
return null;
}
// C ref: wizard.c:215 you_have
function you_have(mask) {
switch (mask) {
case M3_WANTSAMUL: return !!game.u?.uhave?.amulet;
case M3_WANTSBELL: return !!game.u?.uhave?.bell;
case M3_WANTSCAND: return !!game.u?.uhave?.menorah;
case M3_WANTSBOOK: return !!game.u?.uhave?.book;
case M3_WANTSARTI: return !!game.u?.uhave?.questart;
default: break;
}
return false;
}
// C ref: wizard.c:235 target_on
function target_on(mask, mtmp) {
if (!(mtmp.data?.mflags3 & mask)) return STRAT_NONE;
const otyp = which_arti(mask);
if (!mon_has_arti(mtmp, otyp)) {
if (you_have(mask)) {
if (!mtmp.mgoal) mtmp.mgoal = {};
mtmp.mgoal.x = game.u.ux;
mtmp.mgoal.y = game.u.uy;
return (STRAT_PLAYER | mask);
} else {
const otmp = on_ground(otyp);
if (otmp) {
if (!mtmp.mgoal) mtmp.mgoal = {};
mtmp.mgoal.x = otmp.ox;
mtmp.mgoal.y = otmp.oy;
return (STRAT_GROUND | mask);
} else {
const mtmp2 = other_mon_has_arti(mtmp, otyp);
if (mtmp2
&& (otyp !== AMULET_OF_YENDOR
|| (!mtmp2.iswiz && !inhistemple(mtmp2)))) {
if (!mtmp.mgoal) mtmp.mgoal = {};
mtmp.mgoal.x = mtmp2.mx;
mtmp.mgoal.y = mtmp2.my;
return (STRAT_MONSTR | mask);
}
}
}
}
if (!mtmp.mgoal) mtmp.mgoal = {};
mtmp.mgoal.x = mtmp.mgoal.y = 0;
return STRAT_NONE;
}
// C ref: wizard.c:269 strategy
function strategy(mtmp) {
let strat, dstrat;
if (!is_covetous(mtmp.data)
|| (mtmp.isshk && inhishop(mtmp))
|| (mtmp.ispriest && inhistemple(mtmp)))
return STRAT_NONE;
const hpRatio = Math.trunc((mtmp.mhp * 3) / mtmp.mhpmax);
switch (hpRatio) {
default:
case 0:
return STRAT_HEAL;
case 1:
if (mtmp.data !== mons[PM_WIZARD_OF_YENDOR])
return STRAT_HEAL;
// FALLTHROUGH
case 2:
dstrat = STRAT_HEAL;
break;
case 3:
dstrat = STRAT_NONE;
break;
}
if (game.context?.made_amulet) {
strat = target_on(M3_WANTSAMUL, mtmp);
if (strat !== STRAT_NONE) return strat;
}
if (game.u?.uevent?.invoked) {
if ((strat = target_on(M3_WANTSARTI, mtmp)) !== STRAT_NONE) return strat;
if ((strat = target_on(M3_WANTSBOOK, mtmp)) !== STRAT_NONE) return strat;
if ((strat = target_on(M3_WANTSBELL, mtmp)) !== STRAT_NONE) return strat;
if ((strat = target_on(M3_WANTSCAND, mtmp)) !== STRAT_NONE) return strat;
} else {
if ((strat = target_on(M3_WANTSBOOK, mtmp)) !== STRAT_NONE) return strat;
if ((strat = target_on(M3_WANTSBELL, mtmp)) !== STRAT_NONE) return strat;
if ((strat = target_on(M3_WANTSCAND, mtmp)) !== STRAT_NONE) return strat;
if ((strat = target_on(M3_WANTSARTI, mtmp)) !== STRAT_NONE) return strat;
}
return dstrat;
}
// C ref: wizard.c:329 choose_stairs
function choose_stairs(out, dir) {
const g = game;
const builds_up_fn = () => {
const d = g.u?.uz ? g.dungeons?.[g.u.uz.dnum] : null;
return !!d && (d.entry_lev ?? 1) > 1;
};
const stdir = builds_up_fn() ? dir : !dir;
let stway = stairway_find_type_dir(false, stdir);
if (!stway) {
stway = stairway_find_type_dir(true, stdir);
if (!stway) {
// look for branch stairs in any direction
for (stway = g.stairs; stway; stway = stway.next) {
if (stway.tolev?.dnum !== g.u?.uz?.dnum) break;
}
if (!stway) {
stway = stairway_find_type_dir(false, !stdir);
if (!stway)
stway = stairway_find_type_dir(true, !stdir);
}
}
}
if (stway) {
out.x = stway.sx;
out.y = stway.sy;
}
}
// ── nasty: create nasty monsters near hero ──
// C ref: wizard.c:285
export function nasty(mtmp, target) {
// TODO: full nasty monster creation
return 0;
}
// ── tactics: Wizard AI tactics ──
// C ref: wizard.c:368
export async function tactics(mtmp) {
const strat = strategy(mtmp);
let mx, my;
mtmp.mstrategy = (mtmp.mstrategy & (STRAT_WAITMASK | STRAT_APPEARMSG)) | strat;
switch (strat) {
case STRAT_HEAL: {
mx = mtmp.mx;
my = mtmp.my;
// C ref: wizard.c:381 — expels if swallowed
// if (game.u.uswallow && game.u.ustuck === mtmp) expels(...)
const stairs = { x: 0, y: 0 };
choose_stairs(stairs, !!(mtmp.m_id % 2));
mtmp.mavenge = 1;
// C ref: wizard.c:387 In_W_tower check
if (mtmp.iswiz && !stairs.x && !mon_has_amulet(mtmp)) {
if (!noteleport_level(mtmp) && !rn2(3 + Math.trunc(mtmp.mhp / 10)))
await rloc(mtmp, RLOC_MSG);
} else if (stairs.x && (mx !== stairs.x || my !== stairs.y)) {
if (!noteleport_level(mtmp)
&& !await mnearto(mtmp, stairs.x, stairs.y, true, RLOC_MSG)) {
await rloc_to(mtmp, mx, my);
return 0;
}
mx = mtmp.mx;
my = mtmp.my;
}
// C ref: wizard.c:404 — heal if far from player
if (dist2(game.u.ux, game.u.uy, mx, my) > (BOLT_LIM * BOLT_LIM)) {
if (mtmp.mhp <= mtmp.mhpmax - 8) {
healmon(mtmp, rnd(8), 0);
return 1;
}
}
// FALLTHROUGH to STRAT_NONE
}
// fall through
case STRAT_NONE:
if (!noteleport_level(mtmp) && !rn2(!mtmp.mflee ? 5 : 33))
await mnexto(mtmp, RLOC_MSG);
return 0;
default: {
// kill, maim, pillage!
const where = (strat & STRAT_STRATMASK);
const tx = mtmp.mgoal?.x ?? 0;
const ty = mtmp.mgoal?.y ?? 0;
const targ = (strat & STRAT_GOAL);
if (!targ || !isok(tx, ty)) return 0;
if (noteleport_level(mtmp) && !monnear(mtmp, tx, ty)) return 0;
if (u_at(tx, ty) || where === STRAT_PLAYER) {
mx = mtmp.mx;
my = mtmp.my;
if (noteleport_level(mtmp)
|| !await mnearto(mtmp, tx, ty, false, RLOC_MSG))
await rloc_to(mtmp, mx, my);
return 0;
}
if (where === STRAT_GROUND) {
const mon = m_at(tx, ty);
if (!mon || (mtmp.mx === tx && mtmp.my === ty)) {
await rloc_to(mtmp, tx, ty);
// C ref: wizard.c:442 — pick up the object
// TODO: on_ground + pickup logic
return 0;
} else {
if (!rn2(5) && !noteleport_level(mtmp))
await mnexto(mtmp, RLOC_MSG);
return 0;
}
} else {
// a monster has it
mx = mtmp.mx;
my = mtmp.my;
if (!noteleport_level(mtmp)
&& !await mnearto(mtmp, tx, ty, false, RLOC_MSG))
await rloc_to(mtmp, mx, my);
return 0;
}
}
}
}
// ── wizdead: check if Wizard is dead ──
export function wizdead() {
return (game.context?.no_of_wizards ?? 0) === 0;
}
// ── resurrect: Wizard comes back from the dead ──
// C ref: wizard.c:715 — stub, real implementation in allmain.js
export function resurrect() {
// Real resurrect is in allmain.js (needs makemon, pline, etc.)
}
// ── intervene: Wizard intervenes remotely ──
// C ref: wizard.c:784 — stub, real implementation in allmain.js
export function intervene() {
// Real intervene is in allmain.js
}
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