TINY SHOP — cozy 3D shop-management game (Three.js vertical slice)
- Procedural 3D world: dollhouse shop, town, day/night, weather, seasons - Customer AI with personalities (story NPCs, thieves, weekly regulars) - Economy: suppliers, negotiation, pricing psychology, daily accounting - Staff with traits/loyalty, 8 expansion levels, furniture & decoration - Events with choices, quests, achievements, 4 difficulties, rival shop - Animated daily report, analytics, save/load (3 slots + autosave) - Procedural music & SFX (WebAudio), zero external assets - Test harnesses: simtest (node), verify/check/e2e (headless browser)
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import G from './state.js';
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import { PRODUCT_BY_ID } from '../data/products.js';
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import { ARCH_BY_ID, STORY_NPCS, NAMES_F, NAMES_M, SURNAMES } from '../data/customers.js';
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import { purchaseWillingness, sellToCustomer } from './economy.js';
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import { findPath, isWalkable, cellWorld, worldCell, doorCells, randomBrowseNear, counterQueueSpot, rebuildGrid } from './pathfinding.js';
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import { clamp, rand, randi, chance, uid, pickWeighted, choice, emit, toast } from '../util.js';
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import { footfallMult, TIME } from './daycycle.js';
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// ============================================================
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// CUSTOMER AI
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// FSM: arriving -> entering -> browsing -> seeking -> evaluating ->
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// queuing -> paying -> leaving (+ special: stealing, complaining)
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// ============================================================
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const MAX_CUSTOMERS = 14;
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export function spawnTimerTick(dtMin) {
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// Poisson-ish arrivals during open hours
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if (!G.shop.isOpen) return;
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if (G.customers.length >= MAX_CUSTOMERS) return;
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const served = G.data.today.served;
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const dayTarget = 6 + G.shop.rep * 0.55 + G.attractionScore() * 0.35;
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const remaining = Math.max(0, dayTarget - served);
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const openFrac = clamp((TIME.closeAt - G.shop.minutes) / (TIME.closeAt - TIME.openAt), 0, 1);
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if (remaining <= 0 || openFrac <= 0) return;
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// rush-hour shaping: lunch + evening bumps
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const m = G.shop.minutes;
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let shape = 1;
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if ((m > 720 && m < 840) || (m > 1020 && m < 1140)) shape = 1.7; // noon & after-work rush
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if (m < 600) shape = 0.6;
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const ratePerMin = (remaining / (TIME.closeAt - m)) * 1.6 * shape * footfallMult();
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if (Math.random() < ratePerMin * dtMin) spawnCustomer();
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}
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function pickArchetype() {
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const d = G.data;
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const entries = [];
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for (const a of ARCH_BY_ID ? Object.values(ARCH_BY_ID) : []) {
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if (a.repMin && d.shop.rep < a.repMin) continue;
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let w = a.weight;
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// story flavor boosts
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if (a.id === 'tourist' && G.isFestivalDay()) w *= 2.5;
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if (a.id === 'adventurer' && d.demandMods['tag:adventure']) w *= 2;
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if (a.id === 'wealthy') w *= 0.4 + G.luxuryScore() / 12;
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if (a.id === 'noble' && !G.shelves().length) w = 0;
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if (w > 0) entries.push({ ...a, w });
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}
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if (!entries.length) return ARCH_BY_ID.regular;
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return pickWeighted(entries);
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}
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export function spawnCustomer() {
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const arch = pickArchetype();
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const diffPat = { cozy: 1.25, normal: 1, business: 0.9, tycoon: 0.8 }[G.data.difficulty] || 1;
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const c = {
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id: uid(),
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archId: arch.id,
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name: chance(0.5) ? choice(NAMES_F) : choice(NAMES_M),
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surname: SURNAMES.length && chance(0.6) ? choice(SURNAMES) : '',
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budget: Math.round(rand(arch.budget[0], arch.budget[1]) * (0.8 + G.shop.rep / 120)),
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tolerance: arch.tolerance,
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patienceMax: rand(arch.patience[0], arch.patience[1]) * diffPat,
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patience: 0,
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mood: 0.55 + rand(-0.15, 0.25),
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loyalty: 10 + randi(0, 20),
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likes: arch.likes, dislikes: arch.dislikes,
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storyId: null,
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state: 'arriving',
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t: 0, // state timer
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path: null, pathI: 0,
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pos: spawnOutsidePos(),
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facing: 0,
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speed: rand(1.5, 2.1),
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wants: [], // product ids considered
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targetFurn: null,
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queueIndex: -1,
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bought: [],
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emote: null, emoteT: 0,
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bubble: null, bubbleT: 0,
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animPhase: Math.random() * 10,
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stealAttempted: false,
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};
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// story npc takeover — some customers ARE the named folk
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if (chance(0.3)) {
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const npc = choice(STORY_NPCS);
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c.storyId = npc.id; c.name = npc.name; c.archId = npc.arch;
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c.likes = ARCH_BY_ID[npc.arch].likes; c.dislikes = ARCH_BY_ID[npc.arch].dislikes;
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c.tolerance = ARCH_BY_ID[npc.arch].tolerance;
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c.loyalty = clamp(G.relOf(npc.id), 0, 100);
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}
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// elder Tuesday medicine ritual
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if (c.archId === 'elder' && new Date().getDay() === 2) c.wants = ['potion'];
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if (c.storyId === 'alder' && G.shop.day % 7 === 2) { c.wants = ['potion', 'bandage']; c.state = 'arriving'; }
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if (c.archId === 'knight') c.knight = true;
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if (arch.thief) c.thief = true;
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G.customers.push(c);
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return c;
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}
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function spawnOutsidePos() {
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// appear on the path south of the door, outside
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const [[dx]] = doorCells();
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const [wx] = cellWorld(dx, 0);
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return [wx + rand(-2.5, 2.5), G.gridSize()[1] / 2 + rand(3, 7)];
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}
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// ---------- desire selection ----------
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export function chooseDesire(c) {
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const stocked = [];
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for (const f of G.shelves()) {
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for (const pid of Object.keys(G.data.shelfStock[f.id] || {})) {
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if ((G.data.shelfStock[f.id][pid] || 0) > 0) stocked.push({ f, pid });
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}
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}
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if (!stocked.length) return null;
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// score each option by archetype taste
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const scored = stocked.map(({ f, pid }) => {
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const p = PRODUCT_BY_ID[pid];
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let s = 0.4 + G.demandMult(pid) * 0.3;
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if (c.likes.includes(p.cat)) s += 0.9;
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if (c.dislikes.includes(p.cat)) s -= 1.2;
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if (c.likes.includes('medicine') && p.tags.includes('medicine')) s += 0.8;
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if (c.rareSeeker && p.rarity >= 3) s += 1.2;
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if (c.nobleWantsLuxury) s += p.cat === 'luxury' ? 2 : -0.5;
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if (p.tags.includes('luxury')) s += G.luxuryScore() * 0.02 * (c.dislikes.includes('luxury') ? -1 : 1);
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s *= rand(0.75, 1.25);
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if (G.priceOf(pid) > c.budget) s -= 1.4;
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return { f, pid, s };
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}).filter(o => o.s > 0);
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if (!scored.length) return null;
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scored.sort((a, b) => b.s - a.s);
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const top = scored.slice(0, Math.min(3, scored.length));
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const sel = top[Math.floor(Math.random() * Math.min(2, top.length))];
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return sel;
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}
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// ---------- FSM update ----------
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export function updateCustomer(c, dtSec) {
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c.t += dtSec;
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if (c.emoteT > 0) c.emoteT -= dtSec; else c.emote = null;
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if (c.bubbleT > 0) c.bubbleT -= dtSec; else c.bubble = null;
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switch (c.state) {
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case 'arriving': {
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const [dx, dz] = doorCells()[0];
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const [tx, tz] = cellWorld(dx, dz);
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moveTo(c, tx, tz + 1.2, dtSec);
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if (dist(c.pos, [tx, tz + 1.2]) < 0.35) {
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enterShop(c);
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c.bubble = choice(['Hello!', '*looks around*', 'Ooh~']);
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c.bubbleT = 2;
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}
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break;
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}
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case 'browsing': {
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c.patience -= dtSec * 0.4; // browsing burns little patience
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if (c.path && c.pathI < c.path.length) { followPath(c, dtSec); return; }
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if (!c.desire) c.desire = chooseDesire(c);
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if (!c.desire || c.t > 26) {
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// nothing desired → maybe impulse buy or leave grumbling
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if (c.desire === null && c.impulseOK !== false && chance(0.35)) {
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leave(c, 'Nothing I need…');
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} else leave(c, c.desire ? 'Just looking!' : 'Empty shelves…');
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return;
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}
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// walk to the shelf holding the desire
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const [fx, fz] = furnFrontCell(c.desire.f);
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const path = findPath(...worldCell(c.pos[0], c.pos[1]), fx, fz);
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if (!path) { leave(c, 'Can’t reach it!'); return; }
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setPath(c, path);
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c.state = 'seeking';
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break;
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}
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case 'seeking': {
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if (c.path && c.pathI < c.path.length) { followPath(c, dtSec); return; }
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c.state = 'evaluating';
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c.t = 0;
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c.emote = '🤔'; c.emoteT = 2.5;
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break;
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}
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case 'evaluating': {
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if (c.t > rand(1.2, 2.6)) decidePurchase(c);
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break;
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}
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case 'queuing': {
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c.patience -= dtSec;
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const spot = counterQueueSpot(Math.max(0, c.queueIndex));
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if (dist(c.pos, spot) > 0.25) moveTo(c, spot[0], spot[1], dtSec);
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else faceTowards(c, 0, -2);
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if (c.patience <= 0) {
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releaseQueue(c);
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complainAndLeave(c, 'This line is TOO long!');
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return;
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}
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tryCheckout(c);
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break;
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}
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case 'paying': {
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if (c.t > 0.9) finishLeave(c, payLine(c));
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break;
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}
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case 'leaving': {
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const [dx, dz] = doorCells()[0];
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const [tx, tz] = cellWorld(dx, dz);
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if (dist(c.pos, [tx, tz]) > 0.45) {
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if (!c.leavePath) {
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const p = findPath(...worldCell(c.pos[0], c.pos[1]), dx, dz);
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c.leavePath = p || [];
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c.leaveI = 0;
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}
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if (c.leaveI < c.leavePath.length) {
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const [gx, gz] = cellWorld(c.leavePath[c.leaveI][0], c.leavePath[c.leaveI][1]);
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moveDir(c, gx - c.pos[0], gz - c.pos[1], dtSec);
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if (dist(c.pos, [gx, gz]) < 0.18) c.leaveI++;
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} else {
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moveTo(c, tx, tz + 2, dtSec);
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}
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} else {
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removeCustomer(c);
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}
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break;
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}
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}
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// thief behavior — strike while unattended
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if (c.thief && !c.stealAttempted && c.state !== 'leaving' && c.state !== 'paying') {
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const attended = counterAttended();
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if (!attended && chance(dtSec * 0.22)) attemptTheft(c);
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}
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}
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function payLine(c) {
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if (c.bought.length >= 3) return 'My pockets are full!';
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if (c.mood > 0.8) return choice(['Lovely shop!', 'See you tomorrow!', 'Wonderful!']);
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if (c.mood < 0.35) return 'Hmph.';
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return choice(['Thanks!', 'Have a good one!', 'Bye!']);
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}
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function enterShop(c) {
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rebuildGridIfNeeded();
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c.state = 'browsing';
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c.t = 0;
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c.patience = c.patienceMax;
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emit('doorChime');
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// wander to a random browse point first
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const [W, H] = G.gridSize();
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const spot = randomBrowseNear(Math.floor(W / 2), Math.floor(H / 2), 3);
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if (spot) {
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const path = findPath(...worldCell(c.pos[0], c.pos[1]), spot[0], spot[1]);
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if (path) setPath(c, path);
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}
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}
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function decidePurchase(c) {
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const desire = c.desire;
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if (!desire) { leave(c, 'Nothing for me…'); return; }
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const stockNow = (G.data.shelfStock[desire.f.id] || {})[desire.pid] || 0;
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if (stockNow <= 0) {
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// someone took the last one!
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complainAndLeave(c, `No more ${PRODUCT_BY_ID[desire.pid].name}?!`);
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return;
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}
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// knight refuses elven goods
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if (c.knight) {
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const elvenSuppliers = ['alchemist', 'wizard'];
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const isElven = PRODUCT_BY_ID[desire.pid].tags.includes('elven');
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if (isElven) {
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c.emote = '😠'; c.emoteT = 3;
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complainAndLeave(c, 'I’ll not buy ELVEN wares!');
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return;
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}
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}
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const w = purchaseWillingness(c, desire.pid);
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if (w > 0.5 || (w > 0.32 && chance(0.6))) {
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// BUY → join queue
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joinQueue(c, desire);
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} else if (w > 0.2) {
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c.bubble = 'That’s a little expensive…'; c.bubbleT = 2.6;
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G.data.today.complaints++;
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c.mood -= 0.12;
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c.desire = null; // look for something else
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c.state = 'browsing'; c.t = 0;
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} else {
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complainAndLeave(c, 'Too rich for my blood!');
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}
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}
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function joinQueue(c, desire) {
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const queue = G.customers.filter(x => x.state === 'queuing').sort((a, b) => a.queueIndex - b.queueIndex);
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let idx = queue.length;
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// reuse freed slots
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for (let i = 0; i < queue.length; i++) if (queue[i].queueIndex !== i) { idx = i; break; }
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c.queueIndex = idx;
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c.buyIntent = desire;
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c.state = 'queuing';
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c.patience = c.patienceMax * 0.9;
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const [fx, fz] = furnFrontCell(desire.f);
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const path = findPath(...worldCell(c.pos[0], c.pos[1]), ...(spotCell(idx)));
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setPath(c, path || []);
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if (idx === 0) c.emote = '🙋';
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}
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function spotCell(idx) {
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const counter = G.data.furniture.find(f => f.type === 'counter');
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const [W, H] = G.gridSize();
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if (!counter) return [Math.floor(W / 2), H - 3];
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const x = counter.cx + (idx % 2);
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const z = Math.min(H - 2, counter.cz + 2 + Math.floor(idx / 2));
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return isWalkable(x, z) ? [x, z] : [Math.max(1, Math.min(W - 2, x)), Math.min(H - 2, z)];
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}
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function releaseQueue(c) {
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// shift everyone behind forward
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for (const o of G.customers) if (o.state === 'queuing' && o.queueIndex > c.queueIndex) {
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o.queueIndex--;
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o.path = null;
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}
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c.queueIndex = -1;
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}
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let checkoutCd = {};
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function tryCheckout(c) {
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if (c.queueIndex !== 0) return;
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const cdKey = 'checkout';
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if ((checkoutCd[cdKey] ?? 0) > 0) { checkoutCd[cdKey] -= 1 / 60; return; }
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const att = counterAttended(); // 'cashier' | 'near' | 'inside' | null
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if (!att) {
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// nobody home… hope fades
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c.patience -= 0.02;
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return;
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}
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const cashierSkill = G.staffByRole('cashier').reduce((m, s) => Math.max(m, s.skill), 30);
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const base = att === 'cashier' ? clamp(1.5 - cashierSkill / 140, 0.45, 1.5)
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: att === 'near' ? 1.1 : 2.3;
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checkoutCd[cdKey] = base;
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const intent = c.buyIntent;
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const res = sellToCustomer(c, intent.f, intent.pid);
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if (res) {
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c.bought.push(intent.pid);
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c.mood = clamp(c.mood + (res.satisfaction - 0.5) * 0.5, 0.05, 1);
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c.emote = res.satisfaction > 0.66 ? '😊' : res.satisfaction > 0.4 ? '🙂' : '😕';
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c.emoteT = 2.5;
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emit('saleFx', { customer: c, price: res.price, satisfaction: res.satisfaction });
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// loyal regulars may buy a second item!
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if (c.loyalty > 45 && chance(0.35) && c.bought.length < 3) {
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const second = chooseDesire(c);
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if (second && (G.data.shelfStock[second.f.id] || {})[second.pid]) {
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c.desire = second;
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c.state = 'browsing'; c.t = 0;
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releaseQueue(c);
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return;
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}
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}
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}
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releaseQueue(c);
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c.state = 'paying';
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c.t = 0;
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}
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export function counterAttended() {
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// a cashier on duty always counts…
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if (G.staffByRole('cashier').length > 0) return 'cashier';
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// …otherwise the owner has to be around
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const counter = G.data.furniture.find(f => f.type === 'counter');
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if (!counter) return null;
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const [px, pz] = cellWorld(counter.cx, counter.cz);
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const pdx = G.data.player.x - px, pdz = G.data.player.z - pz;
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const d2 = pdx * pdx + pdz * pdz;
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if (d2 < 5) return 'near';
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const [W, H] = G.gridSize();
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const inside = Math.abs(G.data.player.x) < W / 2 + 0.4 && Math.abs(G.data.player.z) < H / 2 + 0.4;
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return inside ? 'inside' : null;
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}
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function attemptTheft(c) {
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c.stealAttempted = true;
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// guard deterrence
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const guards = G.staffByRole('guard');
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const guardPower = guards.reduce((m, g) => Math.max(m, g.skill / 100), 0);
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if (guards.length && chance(guardPower)) {
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c.bubble = 'EEK! A guard!'; c.bubbleT = 2.5;
|
||||
c.emote = '😱'; c.emoteT = 3;
|
||||
leave(c, 'Wrong shop, wrong day!');
|
||||
toast(`${c.name} tried to steal but your guard glared them down!`, 'good', '🛡️');
|
||||
G.addRep(0.5);
|
||||
return;
|
||||
}
|
||||
// find priciest stocked item
|
||||
let best = null, bp = -1;
|
||||
for (const f of G.shelves()) {
|
||||
for (const pid of Object.keys(G.data.shelfStock[f.id] || {})) {
|
||||
const v = G.priceOf(pid);
|
||||
if ((G.data.shelfStock[f.id][pid] || 0) > 0 && v > bp) { bp = v; best = { f, pid }; }
|
||||
}
|
||||
}
|
||||
if (!best) return;
|
||||
deleteFromShelf(best.f.id, best.pid, 1);
|
||||
G.data.today.thefts++;
|
||||
const loss = G.priceOf(best.pid);
|
||||
G.data.today.theftLoss += loss;
|
||||
c.hasStolen = true;
|
||||
c.bubble = '*slinks away*'; c.bubbleT = 2.5;
|
||||
c.emote = '😈'; c.emoteT = 3;
|
||||
toast(`${c.name} stole ${PRODUCT_BY_ID[best.pid].name} (-${loss}g)! Hire a guard or watch the counter!`, 'bad', '🕵️');
|
||||
G.addRep(-0.4);
|
||||
emit('theftFx', { customer: c });
|
||||
c.state = 'leaving';
|
||||
c.leavePath = null;
|
||||
}
|
||||
|
||||
export function deleteFromShelf(fid, pid, qty) {
|
||||
const stock = G.data.shelfStock[fid];
|
||||
if (!stock?.[pid]) return;
|
||||
stock[pid] -= qty;
|
||||
if (stock[pid] <= 0) delete stock[pid];
|
||||
emit('stockChanged');
|
||||
}
|
||||
|
||||
function complainAndLeave(c, msg) {
|
||||
c.bubble = msg; c.bubbleT = 3;
|
||||
c.emote = '😠'; c.emoteT = 3;
|
||||
G.data.today.complaints++;
|
||||
c.mood = clamp(c.mood - 0.25, 0.05, 1);
|
||||
if (c.storyId) G.bumpRel(c.storyId, -1.5);
|
||||
G.addRep(-0.15);
|
||||
leave(c, msg);
|
||||
}
|
||||
function leave(c, bubble) {
|
||||
releaseQueue(c);
|
||||
c.state = 'leaving';
|
||||
c.leavePath = null;
|
||||
if (bubble && !c.bubble) { c.bubble = bubble; c.bubbleT = 2.5; }
|
||||
// memory: satisfaction shapes future loyalty
|
||||
const sat = clamp(c.mood, 0, 1);
|
||||
if (sat > 0.65) c.loyalty = clamp(c.loyalty + 4, 0, 100);
|
||||
else if (sat < 0.35) c.loyalty = clamp(c.loyalty - 5, 0, 100);
|
||||
if (c.storyId) G.bumpRel(c.storyId, sat > 0.6 ? 1 : sat < 0.35 ? -1 : 0);
|
||||
}
|
||||
function finishLeave(c, bubble) {
|
||||
if (bubble) { c.bubble = bubble; c.bubbleT = 2.2; }
|
||||
c.state = 'leaving';
|
||||
c.leavePath = null;
|
||||
const sat = clamp(c.mood, 0, 1);
|
||||
if (sat > 0.65) c.loyalty = clamp(c.loyalty + 4, 0, 100);
|
||||
else if (sat < 0.35) c.loyalty = clamp(c.loyalty - 5, 0, 100);
|
||||
if (c.storyId) G.bumpRel(c.storyId, sat > 0.6 ? 1 : sat < 0.35 ? -1 : 0);
|
||||
}
|
||||
export function removeCustomer(c) {
|
||||
const i = G.customers.indexOf(c);
|
||||
if (i >= 0) G.customers.splice(i, 1);
|
||||
emit('customerRemoved', c);
|
||||
}
|
||||
|
||||
// ---------- movement helpers ----------
|
||||
function setPath(c, path) { c.path = path; c.pathI = 0; }
|
||||
function followPath(c, dtSec) {
|
||||
if (!c.path || c.pathI >= c.path.length) return;
|
||||
const [gx, gz] = cellWorld(c.path[c.pathI][0], c.path[c.pathI][1]);
|
||||
moveDir(c, gx - c.pos[0], gz - c.pos[1], dtSec);
|
||||
if (dist(c.pos, [gx, gz]) < 0.16) c.pathI++;
|
||||
}
|
||||
function moveTo(c, tx, tz, dtSec) {
|
||||
moveDir(c, tx - c.pos[0], tz - c.pos[1], dtSec);
|
||||
}
|
||||
function moveDir(c, dx, dz, dtSec) {
|
||||
const len = Math.hypot(dx, dz);
|
||||
if (len < 1e-4) return;
|
||||
const sp = c.speed * dtSec;
|
||||
const step = Math.min(sp, len);
|
||||
c.pos[0] += (dx / len) * step;
|
||||
c.pos[1] += (dz / len) * step;
|
||||
c.targetFacing = Math.atan2(dx, dz);
|
||||
c.animPhase += dtSec * 9;
|
||||
}
|
||||
function faceTowards(c, x, z) { c.targetFacing = Math.atan2(x - c.pos[0], z - c.pos[1]); }
|
||||
export function dist(a, b) { return Math.hypot(a[0] - b[0], a[1] - b[1]); }
|
||||
|
||||
// front-of-furniture reachable cell
|
||||
function furnFrontCell(f) {
|
||||
const [W, H] = G.gridSize();
|
||||
const rot = f.rot % 2;
|
||||
const candidates = rot === 0
|
||||
? [[f.cx, f.cz + 1], [f.cx + 1, f.cz + 1], [f.cx, f.cz - 1], [f.cx + 1, f.cz - 1]]
|
||||
: [[f.cx - 1, f.cz], [f.cx - 1, f.cz + 1], [f.cx + 1, f.cz], [f.cx + 1, f.cz + 1]];
|
||||
for (const [x, z] of candidates) if (isWalkable(x, z)) return [x, z];
|
||||
return [Math.floor(W / 2), Math.floor(H / 2)];
|
||||
}
|
||||
|
||||
let lastGridFurnCount = -1;
|
||||
function rebuildGridIfNeeded() {
|
||||
if (lastGridFurnCount !== G.data.furniture.length) {
|
||||
rebuildGrid();
|
||||
lastGridFurnCount = G.data.furniture.length;
|
||||
}
|
||||
}
|
||||
export function forceGridRebuild() { rebuildGrid(); lastGridFurnCount = G.data.furniture.length; }
|
||||
|
||||
// ---------- end of day cleanup ----------
|
||||
export function clearCustomers() {
|
||||
for (const c of [...G.customers]) removeCustomer(c);
|
||||
}
|
||||
Reference in New Issue
Block a user