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pokesql/game.js
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JavaScript
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/* ─── NPC ROSTER ─────────────────────────────────────────── */
const CONFIG = {
gameName: 'PokéSQL',
subject: 'SQL',
examName: 'SQL',
townName: 'SQL Town',
saveKey: 'pokesql_save_v1',
introLines: [
"Hello {name}! Welcome to PokéSQL, the world of SQL training! My name is Professor Oak, the SQL Professor!",
"This world is powered by Databases, Tables, Queries, Indexes, and Transactions, mastered through knowledge!",
"Your mission? Journey through each town, challenge SQL masters, and conquer every database concept!",
"Start in SQL Town then travel the SQL world to master JOINs, Aggregations, Indexing, and beyond!",
"100 questions await you. Each correct answer earns you SQL EXP and you'll learn something real!",
"Your progress is saved automatically in your browser so you can pick up right where you left off. Now, {name}... your adventure begins!",
],
namePrompt: "Hello there! Welcome to PokéSQL! My name is Professor Oak — the SQL Professor. Now tell me, what is your name?",
};
function setNPC(el, val) {
if (!el) return;
if (val && val.endsWith('.png')) {
el.innerHTML = '';
const img = document.createElement('img');
img.src = val.includes('/') ? val : './' + val;
img.style.cssText = 'width:auto;image-rendering:pixelated;vertical-align:middle;display:block;';
el.appendChild(img);
} else {
el.textContent = val || '🧑';
}
}
const NPC = {
'Professor Oak': 'oak.png',
'Rival Gary': 'gary.png',
'Old Man Bob': 'bob.png',
'Nurse Joy': 'joy.png',
'Officer Jenny': 'jenny.png',
'Brock': '🧑‍🍳',
'Misty': '🧜‍♀️',
'Giovanni': '😈',
'Team Rocket Grunt': '🚀',
'Scientist Bill': '🔬',
'Fisherman Ralph': 'ralph.png',
'Hiker Taro': '🧗',
'Gym Leader Surge': '⚡',
'Erika': '🌸',
'Koga': '🥷',
'Sabrina': '🔮',
'Blaine': '🌋',
'Lorelei': '❄️',
'Bruno': '💪',
'Agatha': '👻',
'Lance': '🐉',
'Champion': '🏆',
'Gary': 'gary.png',
};
const INTRO_MSGS = CONFIG.introLines.map(text => ({ speaker:'PROFESSOR OAK', npc:'Professor Oak', text }));
const CORRECT_FB = ["That's right!","Excellent work!","Perfect!","Outstanding!","Correct!","You're a natural!","Great answer!","Spot on!","Impressive!","Well done!"];
const WRONG_FB = ["Not quite...","Hmm, that's not it.","Try again next time!","Almost...","Not this time!"];
const MILESTONES = {
25: { badge:'🥉 CLOUD EXPLORER', stars:'★ ★ ☆ ☆' },
50: { badge:'🥈 AZURE APPRENTICE', stars:'★ ★ ★ ☆' },
75: { badge:'🥇 CLOUD PRACTITIONER', stars:'★ ★ ★ ★' },
};
const SAVE_KEY = CONFIG.saveKey;
/* ─── SAVE / LOAD ────────────────────────────────────────── */
function saveGame(s) {
try { localStorage.setItem(SAVE_KEY, JSON.stringify({ playerName:s.playerName, currentQ:s.currentQ, score:s.score, streak:s.streak, maxStreak:s.maxStreak, correct:s.correct, wrong:s.wrong, questionOrder:s.questions.map(q=>q.id), savedAt:Date.now() })); } catch(_){}
}
function loadGame() { try { const r=localStorage.getItem(SAVE_KEY); return r?JSON.parse(r):null; } catch(_){return null;} }
function clearSave() { try { localStorage.removeItem(SAVE_KEY); } catch(_){} }
/* ─── BACKGROUND MUSIC ───────────────────────────────────── */
const Music = (() => {
let audio = null;
let rival = null;
let muted = false;
let wantPlay = false;
function getAudio() {
if (!audio) {
audio = new Audio('./music.mp3');
audio.loop = true;
audio.volume = 0.5;
audio.preload = 'auto';
audio.addEventListener('canplaythrough', () => {
if (wantPlay && !muted) audio.play().catch(() => {});
});
}
return audio;
}
function getRival() {
if (!rival) {
rival = new Audio('./music-rival.mp3');
rival.loop = true;
rival.volume = 0.5;
rival.preload = 'auto';
}
return rival;
}
function updateBtn() {
const btn = document.getElementById('music-toggle');
if (!btn) return;
btn.textContent = muted ? '🔇' : '🎵';
btn.classList.toggle('muted', muted);
}
return {
play() {
if (muted) return;
wantPlay = true;
if (rival && !rival.paused) return;
const a = getAudio();
if (a.readyState >= 3) {
if (a.paused) a.play().catch((e) => { console.warn('Music play blocked:', e); });
}
},
pause() {
wantPlay = false;
if (audio && !audio.paused) audio.pause();
if (rival && !rival.paused) rival.pause();
},
playBattle() {
if (muted) return;
if (audio && !audio.paused) audio.pause();
const r = getRival();
if (r.paused) { r.currentTime = 0; r.play().catch(() => {}); }
},
stopBattle() {
if (rival && !rival.paused) { rival.pause(); rival.currentTime = 0; }
},
toggle() {
muted = !muted;
updateBtn();
if (muted) Music.pause();
else Music.play();
},
unblock() {
const a = getAudio();
if (wantPlay && !muted && a.paused) {
a.play().catch(() => {});
}
},
};
})();
/* ─── CHIPTUNE SOUND ENGINE ──────────────────────────────── */
const SFX = (() => {
let ctx = null;
function getCtx() {
if (!ctx) ctx = new (window.AudioContext || window.webkitAudioContext)();
if (ctx.state === 'suspended') ctx.resume();
return ctx;
}
function unlock() {
if (!ctx) ctx = new (window.AudioContext || window.webkitAudioContext)();
if (ctx.state === 'suspended') ctx.resume().then(() => {});
}
document.addEventListener('touchstart', unlock, { once: true, passive: true });
document.addEventListener('pointerdown', unlock, { once: true, passive: true });
document.addEventListener('visibilitychange', () => {
if (document.visibilityState === 'visible' && ctx && ctx.state === 'suspended') {
ctx.resume();
}
});
/* Core: play a tone with envelope */
function tone(freq, type, vol, attack, sustain, release, when) {
const c = getCtx();
const t = when ?? c.currentTime;
const osc = c.createOscillator();
const gain= c.createGain();
osc.connect(gain);
gain.connect(c.destination);
osc.type = type;
osc.frequency.setValueAtTime(freq, t);
gain.gain.setValueAtTime(0, t);
gain.gain.linearRampToValueAtTime(vol, t + attack);
gain.gain.setValueAtTime(vol, t + attack + sustain);
gain.gain.exponentialRampToValueAtTime(0.0001, t + attack + sustain + release);
osc.start(t);
osc.stop(t + attack + sustain + release + 0.01);
}
/* Sequence of notes: [{f, d}...] */
function seq(notes, type='square', vol=0.18) {
const c = getCtx();
let t = c.currentTime + 0.02;
notes.forEach(n => {
if (n.f) tone(n.f, type, vol, 0.01, n.d * 0.6, n.d * 0.4, t);
t += n.d;
});
}
return {
/* Boot jingle — classic rising fanfare */
boot() {
seq([
{f:262,d:.1},{f:330,d:.1},{f:392,d:.1},{f:523,d:.25}
], 'square', 0.2);
},
/* Overworld bgm loop — simple cheerful melody */
overworldStart() {
seq([
{f:392,d:.12},{f:440,d:.12},{f:494,d:.12},{f:523,d:.18},
{f:494,d:.1}, {f:440,d:.1}, {f:392,d:.18},
{f:330,d:.12},{f:392,d:.12},{f:440,d:.12},{f:392,d:.24},
], 'square', 0.12);
},
/* Footstep click — tiny blip each walk tick */
step() {
tone(180, 'square', 0.04, 0.005, 0.02, 0.03);
},
/* NPC encounter — ascending two-note ding */
encounter() {
seq([{f:523,d:.1},{f:659,d:.18}], 'square', 0.22);
},
/* Typewriter blip per character */
type() {
tone(880 + Math.random()*200, 'square', 0.03, 0.005, 0.01, 0.02);
},
/* Select / menu move */
select() {
const c = getCtx();
tone(440, 'square', 0.12, 0.005, 0.03, 0.04, c.currentTime + 0.05);
},
/* Correct answer — happy ascending chord */
correct() {
seq([
{f:523,d:.08},{f:659,d:.08},{f:784,d:.08},{f:1047,d:.2}
], 'square', 0.18);
},
/* Streak bonus — extra flourish */
streak() {
seq([
{f:523,d:.06},{f:659,d:.06},{f:784,d:.06},
{f:1047,d:.06},{f:1319,d:.2}
], 'square', 0.18);
},
/* Wrong answer — descending buzz */
wrong() {
seq([
{f:330,d:.1},{f:277,d:.1},{f:233,d:.18}
], 'sawtooth', 0.15);
},
/* Badge / level up fanfare */
levelUp() {
seq([
{f:523,d:.1},{f:659,d:.1},{f:784,d:.1},{f:659,d:.1},
{f:784,d:.1},{f:1047,d:.3}
], 'square', 0.2);
},
/* Champion / completion — full fanfare */
complete() {
seq([
{f:523,d:.1},{f:659,d:.1},{f:784,d:.1},{f:1047,d:.1},
{f:784,d:.08},{f:880,d:.08},{f:1047,d:.08},{f:1319,d:.4}
], 'square', 0.2);
},
/* Menu confirm (name entry OK) */
confirm() {
seq([{f:523,d:.08},{f:784,d:.15}], 'square', 0.18);
},
};
})();
/* ─── GAME ───────────────────────────────────────────────── */
class Game {
constructor() {
this.state = {
screen:'boot', playerName:'', questions:[], currentQ:0,
score:0, streak:0, maxStreak:0, correct:0, wrong:0,
answering:false, introStep:0, twTimer:null,
worldX: 0, worldY: 0,
npcWorldX: 0, npcWorldY: 0,
npcSpawned: false,
pathDir: 'right',
lastDir: 'right',
cursor:0,
};
this.screens = {};
document.querySelectorAll('.screen').forEach(s => {
this.screens[s.id.replace('screen-','')] = s;
});
this._heldKeys = new Set();
this._walkLoop = null;
this._introClick = null;
this._introKey = null;
this._gpLoop = null;
this._bindController();
this._bindGlobalKeys();
this._bindGamepad();
this.boot();
}
/* ══════════════════════════════════════════════════════════
CONTROLLER OVERLAY — wires D-pad, A, B, SELECT, START
══════════════════════════════════════════════════════════ */
_bindController() {
const dpadMap = { 'dp-up':'up', 'dp-down':'down', 'dp-left':'left', 'dp-right':'right' };
Object.entries(dpadMap).forEach(([id, dir]) => {
const btn = document.getElementById(id);
if (!btn) return;
const start = (e) => { e.preventDefault(); this._dpadStart(dir); btn.classList.add('pressed'); };
const end = (e) => { e.preventDefault(); this._dpadEnd(dir); btn.classList.remove('pressed'); };
btn.addEventListener('pointerdown', start, {passive:false});
btn.addEventListener('pointerup', end, {passive:false});
btn.addEventListener('pointerleave', end, {passive:false});
btn.addEventListener('pointercancel',end, {passive:false});
});
const aBtn = document.getElementById('btn-a');
const bBtn = document.getElementById('btn-b');
aBtn.addEventListener('pointerdown', (e)=>{ e.preventDefault(); aBtn.classList.add('pressed'); this._pressA(); });
aBtn.addEventListener('pointerup', (e)=>{ e.preventDefault(); aBtn.classList.remove('pressed'); });
aBtn.addEventListener('pointercancel',(e)=>{ aBtn.classList.remove('pressed'); });
bBtn.addEventListener('pointerdown', (e)=>{ e.preventDefault(); bBtn.classList.add('pressed'); this._pressB(); });
bBtn.addEventListener('pointerup', (e)=>{ e.preventDefault(); bBtn.classList.remove('pressed'); });
bBtn.addEventListener('pointercancel',(e)=>{ bBtn.classList.remove('pressed'); });
document.getElementById('btn-start').addEventListener('pointerdown', (e)=>{ e.preventDefault(); });
document.getElementById('btn-select').addEventListener('pointerdown', (e)=>{ e.preventDefault(); });
}
/* A — map: talk to NPC | battle: confirm cursor | elsewhere: advance */
_pressA() {
const s = this.state.screen;
if (s === 'map') { this._talkToNPC(); return; }
if (s === 'battle' && !this.state.answering) { this._confirmCursor(); return; }
if (s === 'intro') { this.advanceIntro(); return; }
if (s === 'result') { document.getElementById('btn-result-cont')?.click(); return; }
if (s === 'levelup') { document.getElementById('btn-lu-cont')?.click(); return; }
}
/* B — map: talk to NPC (same as A) | battle: no-op while answering | intro/result: advance */
_pressB() {
const s = this.state.screen;
if (s === 'map') { this._talkToNPC(); return; }
if (s === 'battle' && this.state.answering) { return; }
if (s === 'intro') { this.advanceIntro(); return; }
if (s === 'result') { document.getElementById('btn-result-cont')?.click(); return; }
}
/* D-pad start hold */
_dpadStart(dir) {
this._heldKeys.add(dir);
if (!this._walkLoop) this._startWalkLoop();
const s = this.state.screen;
if (s === 'battle') { this._moveCursor(dir); }
}
_dpadEnd(dir) {
this._heldKeys.delete(dir);
if (this._heldKeys.size === 0) this._stopWalkLoop();
}
/* ══════════════════════════════════════════════════════════
MAP WALKING — 16-step loop, collision, NPC proximity
══════════════════════════════════════════════════════════ */
_startWalkLoop() {
if (this._walkLoop) return;
this._walkLoop = setInterval(() => this._walkTick(), 30);
}
_stopWalkLoop() {
clearInterval(this._walkLoop);
this._walkLoop = null;
if (this.state.screen === 'map') {
const p = document.getElementById('map-player');
if (p) {
const dir = this.state.lastDir;
const idleFrames = { right:'-320px', down:'-32px', left:'-128px', up:'-224px' };
const frame = idleFrames[dir] || '-32px';
p.className = 'map-player idle';
requestAnimationFrame(() => {
p.style.backgroundPositionX = frame;
});
}
}
}
_getViewport() {
const w = document.getElementById('map-world');
return {
viewW: (w && w.offsetWidth) || 420,
viewH: (w && w.offsetHeight) || 300,
};
}
_walkTick() {
if (this.state.screen !== 'map') return;
const {viewW, viewH} = this._getViewport();
const SPEED = 8;
let dx = 0, dy = 0, dir = '';
if (this._heldKeys.has('right')) { dx = SPEED; dir = 'right'; }
if (this._heldKeys.has('left')) { dx = -SPEED; dir = 'left'; }
if (this._heldKeys.has('up')) { dy = -SPEED; dir = 'up'; }
if (this._heldKeys.has('down')) { dy = SPEED; dir = 'down'; }
if (!dir) return;
this.state.worldX += dx;
this.state.worldY += dy;
this.state.lastDir = dir;
this._applyCamera();
const p = document.getElementById('map-player');
const bub = document.getElementById('player-bubble');
if (p) {
const cx = viewW / 2 - 16;
const bot = viewH * 0.45;
p.style.left = cx + 'px';
p.style.bottom = bot + 'px';
p.className = `map-player walk-${dir}`;
if (bub) { bub.style.left = (cx - 4) + 'px'; bub.style.bottom = (bot + 66) + 'px'; }
}
this._checkNPCProximity();
}
_applyCamera() {
const {viewW, viewH} = this._getViewport();
const spread = Math.max(viewW, viewH) * 5;
const inner = document.getElementById('map-inner');
const tx = -(spread + this.state.worldX - viewW / 2);
const ty = -(spread + this.state.worldY - viewH / 2);
if (inner) inner.style.transform = `translate(${tx}px,${ty}px)`;
this._positionNPCOnScreen();
}
_positionNPCOnScreen() {
const {viewW, viewH} = this._getViewport();
const npcWrap = document.getElementById('map-npc-wrap');
if (npcWrap) {
const screenX = viewW / 2 + (this.state.npcWorldX - this.state.worldX) - 24;
const screenY = viewH / 2 + (this.state.npcWorldY - this.state.worldY) - 24;
npcWrap.style.left = screenX + 'px';
npcWrap.style.bottom = (viewH - screenY - 48) + 'px';
}
}
_playerScreenOffset() {
const {viewW, viewH} = this._getViewport();
return { px: viewW / 2, py: viewH - (viewH * 0.45) - 32 };
}
_npcScreenDist() {
const {viewW, viewH} = this._getViewport();
const {px, py} = this._playerScreenOffset();
const npcSX = viewW / 2 + (this.state.npcWorldX - this.state.worldX);
const npcSY = viewH / 2 + (this.state.npcWorldY - this.state.worldY);
return Math.sqrt((npcSX - px) ** 2 + (npcSY - py) ** 2);
}
_checkNPCProximity() {
const {viewW, viewH} = this._getViewport();
const dist = this._npcScreenDist();
const near = this.state.npcSpawned && dist < 100;
const hint = document.getElementById('map-talk-hint');
const bub = document.getElementById('npc-bubble');
if (hint) {
const npcSX = viewW / 2 + (this.state.npcWorldX - this.state.worldX);
const npcSY = viewH / 2 + (this.state.npcWorldY - this.state.worldY);
hint.style.display = near ? 'block' : 'none';
hint.style.left = (npcSX - 28) + 'px';
hint.style.bottom = (viewH - npcSY + 48) + 'px';
}
if (bub) bub.style.opacity = near ? '0' : '1';
this._updateDirArrow(near);
}
_updateDirArrow(nearNPC) {
const arrow = document.getElementById('map-dir-arrow');
if (!arrow) return;
if (nearNPC) { arrow.style.display = 'none'; arrow.style.animation = 'none'; return; }
const {viewW, viewH} = this._getViewport();
const dx = this.state.npcWorldX - this.state.worldX;
const dy = this.state.npcWorldY - this.state.worldY;
let pd;
if (Math.abs(dx) >= Math.abs(dy)) {
pd = dx >= 0 ? 'right' : 'left';
} else {
pd = dy >= 0 ? 'down' : 'up';
}
const isLandscape = window.innerWidth > window.innerHeight;
const ctrlH = isLandscape ? 0 : Math.round(Math.min(148, Math.max(110, window.innerWidth * 0.22)));
const safeBottom = ctrlH + 12;
const midY = (viewH - ctrlH) / 2 - 16;
const glyphs = { right:'▶', left:'◀', up:'▲', down:'▼' };
arrow.textContent = glyphs[pd];
arrow.style.display = 'block';
arrow.style.animation = 'arrowPulse .7s ease-in-out infinite';
if (pd === 'right') {
arrow.style.removeProperty('left');
arrow.style.right = '12px';
arrow.style.bottom = midY + 'px';
} else if (pd === 'left') {
arrow.style.removeProperty('right');
arrow.style.left = '12px';
arrow.style.bottom = midY + 'px';
} else if (pd === 'up') {
arrow.style.removeProperty('right');
arrow.style.left = (viewW / 2 - 16) + 'px';
arrow.style.bottom = (viewH - ctrlH - 48) + 'px';
} else {
arrow.style.removeProperty('right');
arrow.style.left = (viewW / 2 - 16) + 'px';
arrow.style.bottom = safeBottom + 'px';
}
}
_nearNPC() {
if (!this.state.npcSpawned) return false;
return this._npcScreenDist() < 100;
}
_talkToNPC() {
if (!this._nearNPC()) {
const bub = document.getElementById('player-bubble');
if (bub) {
bub.classList.remove('visible');
void bub.offsetWidth;
bub.classList.add('visible');
clearTimeout(this._bubbleTimer);
this._bubbleTimer = setTimeout(() => bub.classList.remove('visible'), 1500);
}
return;
}
const arrow = document.getElementById('map-dir-arrow');
if (arrow) { arrow.style.display = 'none'; arrow.style.animation = 'none'; }
const bub = document.getElementById('player-bubble');
if (bub) bub.classList.remove('visible');
SFX.encounter();
this.startQuestion();
}
_placeMapSprites() {
const {viewW, viewH} = this._getViewport();
const idleFrames = { right:'-320px', down:'-32px', left:'-128px', up:'-224px' };
const p = document.getElementById('map-player');
const bub = document.getElementById('player-bubble');
if (p) {
const cx = viewW / 2 - 16;
const bot = viewH * 0.45;
p.style.left = cx + 'px';
p.style.bottom = bot + 'px';
p.className = 'map-player idle';
p.style.backgroundPositionX = idleFrames[this.state.lastDir] || '-32px';
if (bub) { bub.style.left = (cx - 4) + 'px'; bub.style.bottom = (bot + 66) + 'px'; }
}
this._applyCamera();
const hint = document.getElementById('map-talk-hint');
if (hint) hint.style.display = 'none';
}
/* ══════════════════════════════════════════════════════════
BATTLE CURSOR — navigate 2×2 grid with D-pad / WASD
══════════════════════════════════════════════════════════ */
_moveCursor(dir) {
const btns = document.querySelectorAll('.choice-btn:not(.disabled):not(.correct):not(.wrong):not(.confirm-inactive)');
if (!btns.length) return;
const total = btns.length;
let c = this.state.cursor;
const hasConfirm = total === 5;
if (dir === 'right') c = (c === 0) ? 1 : (c === 2) ? 3 : c;
else if (dir === 'left') c = (c === 1) ? 0 : (c === 3) ? 2 : (c === 4) ? 4 : c;
else if (dir === 'down') c = (c === 0) ? 2 : (c === 1) ? 3 : (hasConfirm && (c === 2 || c === 3)) ? 4 : c;
else if (dir === 'up') c = (c === 2) ? 0 : (c === 3) ? 1 : (c === 4) ? 2 : c;
c = Math.min(c, total - 1);
this.state.cursor = c;
this._renderCursor();
SFX.select();
}
_renderCursor() {
document.querySelectorAll('.choice-btn').forEach((b,i) => {
b.classList.toggle('cursor', i === this.state.cursor);
});
}
_confirmCursor() {
if (this.state.answering) return;
const btns = document.querySelectorAll('.choice-btn:not(.disabled):not(.correct):not(.wrong):not(.confirm-inactive)');
const target = btns[this.state.cursor];
if (target) target.click();
}
/* ══════════════════════════════════════════════════════════
GLOBAL KEYBOARD
══════════════════════════════════════════════════════════ */
_bindGlobalKeys() {
const DPAD_KEYS = {
'ArrowUp':'up','ArrowDown':'down','ArrowLeft':'left','ArrowRight':'right',
'w':'up','s':'down','a':'left','d':'right',
'W':'up','S':'down','A':'left','D':'right',
};
document.addEventListener('keydown', (e) => {
const s = this.state.screen;
/* Name screen — character input */
if (s === 'name') {
if (e.key==='Backspace') { e.preventDefault(); this.delChar(); }
else if (e.key==='Enter') this.confirmName();
else if (e.key.length===1 && /[A-Z0-9.\-!?]/i.test(e.key)) this.addChar(e.key.toUpperCase());
return;
}
/* Title */
if (s === 'title' && (e.key==='Enter'||e.key===' ')) { document.getElementById('screen-title').click(); return; }
/* Continue screen */
if (s === 'continue' && (e.key==='Enter'||e.key===' ')) { document.getElementById('btn-continue-save')?.click(); return; }
/* Intro */
if (s === 'intro' && (e.key==='Enter'||e.key===' '||e.key==='e'||e.key==='E')) { this.advanceIntro(); return; }
/* D-pad direction keys */
if (DPAD_KEYS[e.key] && !e.repeat) {
const dir = DPAD_KEYS[e.key];
if ((s==='map' || s==='battle') && !this._heldKeys.has(dir)) {
e.preventDefault();
this._heldKeys.add(dir);
if (s==='map' && !this._walkLoop) this._startWalkLoop();
if (s==='battle') this._moveCursor(dir);
}
return;
}
/* A-button equivalent on keyboard */
if ((e.key==='Enter'||e.key==='e'||e.key==='E') && !e.repeat) {
e.preventDefault();
this._pressA();
return;
}
/* B-button */
if ((e.key==='x'||e.key==='X') && !e.repeat) { this._pressB(); return; }
/* Quick-pick numbers on battle */
if (s==='battle' && !this.state.answering) {
const numMap={'1':0,'2':1,'3':2,'4':3};
if (numMap[e.key]!==undefined) {
this.state.cursor = numMap[e.key];
this._renderCursor();
setTimeout(()=>this._confirmCursor(), 80);
}
}
});
document.addEventListener('keyup', (e) => {
const DPAD_KEYS = {
'ArrowUp':'up','ArrowDown':'down','ArrowLeft':'left','ArrowRight':'right',
'w':'up','s':'down','a':'left','d':'right',
'W':'up','S':'down','A':'left','D':'right',
};
const dir = DPAD_KEYS[e.key];
if (dir) {
this._heldKeys.delete(dir);
if (this._heldKeys.size === 0) this._stopWalkLoop();
}
});
}
/* ══════════════════════════════════════════════════════════
XBOX / GAMEPAD SUPPORT (Gamepad API)
Polls every animation frame. Works with Xbox, PS, and most
USB/Bluetooth gamepads that the browser recognises.
Xbox mapping:
Axes 0/1 = left stick X/Y
Button 0 = A (confirm / talk)
Button 1 = B (talk / back)
Button 12 = D-pad up
Button 13 = D-pad down
Button 14 = D-pad left
Button 15 = D-pad right
Button 9 = Start (confirm)
══════════════════════════════════════════════════════════ */
_bindGamepad() {
this._gpPrev = {};
this._gpActive = false;
window.addEventListener('gamepadconnected', (e) => {
console.log('Gamepad connected:', e.gamepad.id);
});
/* Start polling immediately — don't wait for the event.
The poll function checks if any gamepad is present each frame. */
this._startGpLoop();
}
_startGpLoop() {
const poll = () => {
this._gpLoop = requestAnimationFrame(poll);
this._pollGamepad();
};
this._gpLoop = requestAnimationFrame(poll);
}
_pollGamepad() {
const gamepads = navigator.getGamepads ? navigator.getGamepads() : [];
const gp = [...gamepads].find(g => g);
if (!gp) return;
const DEAD = 0.25;
const axes = gp.axes;
const btns = gp.buttons;
const pressedNow = (i) => btns[i]?.pressed;
const wasPressed = (i) => !!this._gpPrev[`btn_${i}`];
const justPressed = (i) => pressedNow(i) && !wasPressed(i);
const gpDirs = {
up: (axes[1] < -DEAD) || !!btns[12]?.pressed,
down: (axes[1] > DEAD) || !!btns[13]?.pressed,
left: (axes[0] < -DEAD) || !!btns[14]?.pressed,
right: (axes[0] > DEAD) || !!btns[15]?.pressed,
};
const s = this.state.screen;
/* ── NAME SCREEN — D-pad navigates keyboard grid, A selects, B deletes, Start confirms ── */
if (s === 'name') {
const letterKeys = Array.from(document.querySelectorAll('.key-btn'));
const delBtn = document.getElementById('btn-backspace');
const okBtn = document.getElementById('btn-confirm-name');
const keys = [...letterKeys, delBtn, okBtn].filter(Boolean);
const total = keys.length;
const COLS = 10;
/* Highlight current key — works for letter keys, DEL and OK */
keys.forEach((k, i) => {
k.style.outline = i === this._gpKeyCursor ? '3px solid #f8c030' : '';
k.style.outlineOffset = i === this._gpKeyCursor ? '-2px' : '';
});
/* D-pad navigation with repeat delay */
const now = Date.now();
const moved = Object.entries(gpDirs).find(([d, active]) => active && !this._gpPrev[`axis_${d}`]);
if (moved) {
const [dir] = moved;
let c = this._gpKeyCursor;
if (dir === 'right') c = Math.min(c + 1, total - 1);
if (dir === 'left') c = Math.max(c - 1, 0);
if (dir === 'down') c = Math.min(c + COLS, total - 1);
if (dir === 'up') c = Math.max(c - COLS, 0);
this._gpKeyCursor = c;
keys.forEach((k, i) => {
k.style.outline = i === c ? '3px solid #f8c030' : '';
k.style.outlineOffset = i === c ? '-2px' : '';
});
}
if (justPressed(0) || justPressed(1)) { /* A or B — activate highlighted key */
const key = keys[this._gpKeyCursor];
if (!key) return;
const isLetterKey = key.classList.contains('key-btn');
if (isLetterKey) {
key.dispatchEvent(new PointerEvent('pointerdown', { bubbles: true, isPrimary: true }));
} else if (key.id === 'btn-backspace') {
this.delChar();
} else if (key.id === 'btn-confirm-name') {
this.confirmName();
}
}
if (justPressed(2)) { /* X — delete */
this.delChar();
}
if (justPressed(9) || justPressed(8)) { /* Start or Select — confirm name */
this.confirmName();
}
/* ── ALL OTHER SCREENS — directional movement + button actions ── */
} else {
/* ── CONTINUE SCREEN — D-pad up/down switches between Continue and New Game ── */
if (s === 'continue') {
if (this._gpContCursor === undefined) this._gpContCursor = 0;
const contBtn = document.getElementById('btn-continue-save');
const newBtn = document.getElementById('btn-new-game');
const movedUp = gpDirs.up && !this._gpPrev['axis_up'];
const movedDown = gpDirs.down && !this._gpPrev['axis_down'];
if (movedUp || movedDown) {
this._gpContCursor = this._gpContCursor === 0 ? 1 : 0;
}
/* Highlight selected button */
if (contBtn) contBtn.style.outline = this._gpContCursor === 0 ? '3px solid #f8c030' : '';
if (newBtn) newBtn.style.outline = this._gpContCursor === 1 ? '3px solid #f8c030' : '';
}
/* Walk / battle cursor movement */
Object.entries(gpDirs).forEach(([dir, active]) => {
const key = `axis_${dir}`;
if (active && !this._gpPrev[key]) {
if (s === 'map') {
this._heldKeys.add(dir);
if (!this._walkLoop) this._startWalkLoop();
}
if (s === 'battle') this._moveCursor(dir);
} else if (!active && this._gpPrev[key]) {
this._heldKeys.delete(dir);
if (this._heldKeys.size === 0) this._stopWalkLoop();
}
});
/* A / Start — context action on every screen */
if (justPressed(0) || justPressed(9)) {
if (s === 'boot') { /* wait for title */ }
else if (s === 'title') { document.getElementById('screen-title')?.click(); }
else if (s === 'continue') {
/* 0 = CONTINUE highlighted, 1 = NEW GAME highlighted */
if (this._gpContCursor === 0) document.getElementById('btn-continue-save')?.click();
else document.getElementById('btn-new-game')?.click();
}
else if (s === 'intro') { this.advanceIntro(); }
else if (s === 'battle' && !this.state.answering) { this._confirmCursor(); }
else if (s === 'result') { document.getElementById('btn-result-cont')?.click(); }
else if (s === 'levelup') { document.getElementById('btn-lu-cont')?.click(); }
else if (s === 'complete') { document.getElementById('btn-play-again')?.click(); }
else { this._pressA(); }
}
/* B — also confirms answer in battle */
if (justPressed(1)) {
if (s === 'battle' && !this.state.answering) { this._confirmCursor(); }
else if (s === 'intro') { this.advanceIntro(); }
else if (s === 'result') { document.getElementById('btn-result-cont')?.click(); }
else { this._pressB(); }
}
/* Quick-pick answers X=2, Y=3, LB=4, RB=5 */
if (s === 'battle' && !this.state.answering) {
const quickMap = { 2:0, 3:1, 4:2, 5:3 };
Object.entries(quickMap).forEach(([btn, idx]) => {
if (justPressed(+btn)) {
this.state.cursor = idx;
this._renderCursor();
setTimeout(() => this._confirmCursor(), 80);
}
});
}
}
/* Store all states for next frame */
Object.entries(gpDirs).forEach(([d, v]) => this._gpPrev[`axis_${d}`] = v);
for (let i = 0; i < btns.length; i++) {
this._gpPrev[`btn_${i}`] = btns[i]?.pressed;
}
}
_showController(visible) {
['gba-left', 'gba-right'].forEach(id => {
const el = document.getElementById(id);
if (!el) return;
if (visible) el.classList.remove('hidden');
else el.classList.add('hidden');
});
}
/* ══════════════════════════════════════════════════════════
SCREENS
══════════════════════════════════════════════════════════ */
boot() {
this.show('boot');
this._showController(false);
setTimeout(() => this.showTitle(), 1800);
}
showTitle() {
this.show('title');
SFX.boot();
this._showController(false);
const go = () => {
document.getElementById('screen-title').removeEventListener('click', go);
Music.unblock();
this.showContinueOrName();
};
document.getElementById('screen-title').addEventListener('click', go);
}
showContinueOrName() {
const save = loadGame();
if (save && save.playerName && save.currentQ > 0 && save.currentQ < 100) {
this.show('continue');
this._showController(false);
const pct = Math.round((save.currentQ/100)*100);
document.getElementById('save-name-disp').textContent = save.playerName;
document.getElementById('save-prog-disp').textContent = `Q${save.currentQ}/100 (${pct}%)`;
document.getElementById('save-score-disp').textContent = save.score.toLocaleString();
document.getElementById('btn-continue-save').onclick = () => { Music.unblock(); this.restoreFromSave(save); };
document.getElementById('btn-new-game').onclick = () => {
document.getElementById('continue-warn').textContent = 'Starting a new game will erase your saved progress!';
document.getElementById('btn-new-game').textContent = '✦ CONFIRM NEW GAME';
document.getElementById('btn-new-game').onclick = () => { clearSave(); this.startFresh(); };
};
/* Reset controller cursor to CONTINUE button */
this._gpContCursor = 0;
setTimeout(() => {
const c = document.getElementById('btn-continue-save');
if (c) c.style.outline = '3px solid #f8c030';
}, 50);
} else {
this.startFresh();
}
}
restoreFromSave(save) {
Object.assign(this.state, {
playerName:save.playerName, currentQ:save.currentQ,
score:save.score, streak:save.streak, maxStreak:save.maxStreak,
correct:save.correct, wrong:save.wrong,
worldX:0, worldY:0, npcWorldX:0, npcWorldY:0, npcSpawned:false,
});
this.loadQuestions(() => {
if (save.questionOrder && save.questionOrder.length === this.state.questions.length) {
const idMap = Object.fromEntries(this.state.questions.map(q => [q.id, q]));
const restored = save.questionOrder.map(id => idMap[id]).filter(Boolean);
if (restored.length === this.state.questions.length) {
this.state.questions = restored;
}
}
this.showMap();
});
}
startFresh() {
Object.assign(this.state, { playerName:'', currentQ:0, score:0, streak:0, maxStreak:0, correct:0, wrong:0 });
this.showNameEntry();
}
/* ── NAME ─────────────────────────────────────────────── */
showNameEntry() {
this.show('name');
this._showController(false);
this._gpKeyCursor = 0;
this.buildKeyboard();
this.typeText('name-prompt-text', CONFIG.namePrompt);
document.getElementById('btn-backspace').onclick = () => this.delChar();
document.getElementById('btn-confirm-name').onclick = () => this.confirmName();
}
buildKeyboard() {
const grid = document.getElementById('keyboard-grid');
const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-!?'.split('');
grid.innerHTML = '';
chars.forEach(ch => {
const b = document.createElement('button');
b.className = 'key-btn'; b.textContent = ch;
b.addEventListener('pointerdown', (e)=>{ e.preventDefault(); this.addChar(ch); });
grid.appendChild(b);
});
}
addChar(ch) { if (this.state.playerName.length<10){ this.state.playerName+=ch; this.refreshNameDisplay(); SFX.select(); } }
delChar() { this.state.playerName=this.state.playerName.slice(0,-1); this.refreshNameDisplay(); }
refreshNameDisplay() {
const el=document.getElementById('name-display');
if(el) el.textContent=this.state.playerName+(this.state.playerName.length<10?'_':'');
}
confirmName() { if(!this.state.playerName.trim()) this.state.playerName='ASH'; SFX.confirm(); this.showIntro(); }
/* ── INTRO ────────────────────────────────────────────── */
showIntro() {
this.show('intro');
this._showController(false);
this.state.introStep = 0;
this.renderIntroMsg();
const advance = () => this.advanceIntro();
const introEl = document.getElementById('screen-intro');
if (this._introClick) introEl.removeEventListener('click', this._introClick);
this._introClick = advance;
introEl.addEventListener('click', advance);
}
renderIntroMsg() {
const msg = INTRO_MSGS[this.state.introStep];
if (!msg) return;
const npcEl = document.getElementById('intro-npc');
if (npcEl) setNPC(npcEl, NPC[msg.npc] || '👴');
document.getElementById('intro-speaker').textContent = msg.speaker;
document.getElementById('intro-arrow').style.display = 'none';
this.typeText('intro-text',
msg.text.replace(/{name}/g, this.state.playerName||'ASH'),
()=>{ document.getElementById('intro-arrow').style.display='block'; }
);
}
advanceIntro() {
if (this.state.twTimer) {
clearInterval(this.state.twTimer); this.state.twTimer=null;
const msg = INTRO_MSGS[this.state.introStep];
document.getElementById('intro-text').textContent = msg.text.replace(/{name}/g, this.state.playerName||'ASH');
document.getElementById('intro-arrow').style.display = 'block';
return;
}
this.state.introStep++;
if (this.state.introStep >= INTRO_MSGS.length) {
const el = document.getElementById('screen-intro');
if (this._introClick) el.removeEventListener('click', this._introClick);
this.loadQuestions(() => this.showMap());
return;
}
this.renderIntroMsg();
}
/* ── LOAD QUESTIONS ───────────────────────────────────── */
loadQuestions(cb) {
if (this.state.questions.length>0) { cb(); return; }
fetch('./questions.json')
.then(r=>r.json())
.then(data=>{
const qs = data.levels[0].questions;
for (let i = qs.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[qs[i], qs[j]] = [qs[j], qs[i]];
}
this.state.questions = qs;
cb();
})
.catch(()=>this.toast('❌ Could not load questions.json'));
}
/* Generate randomly placed trees across the full scrollable world */
/* Generate trees for the current journey leg — from world origin to just past the NPC.
Called fresh each time so trees always fill the visible path ahead. */
_pickNextDir(currentDir) {
const opposite = { right:'left', left:'right', up:'down', down:'up' };
const opp = opposite[currentDir];
const choices = ['right','left','up','down',currentDir,currentDir].filter(d => d !== opp);
return choices[Math.floor(Math.random() * choices.length)];
}
_generateTrees() {
const container = document.getElementById('map-trees');
if (!container) return;
container.innerHTML = '';
const {viewW, viewH} = this._getViewport();
const spread = Math.max(viewW, viewH) * 5;
const inner = document.getElementById('map-inner');
if (inner) { inner.style.width = spread * 2 + 'px'; inner.style.height = spread * 2 + 'px'; }
const cx = spread;
const cy = spread;
const npcX = cx + this.state.npcWorldX;
const npcY = cy + this.state.npcWorldY;
for (let i = 0; i < 300; i++) {
const span = document.createElement('span');
span.className = 'tree';
const size = 48 + Math.random() * 24;
let x, y, tries = 0;
do {
x = cx + (Math.random() - 0.5) * spread * 1.8;
y = cy + (Math.random() - 0.5) * spread * 1.8;
tries++;
} while (tries < 10 && Math.abs(x - npcX) < 80 && Math.abs(y - npcY) < 80);
span.textContent = '🌳';
span.style.fontSize = size + 'px';
span.style.left = x + 'px';
span.style.top = y + 'px';
span.style.animationDelay = (Math.random() * 3).toFixed(2) + 's';
span.style.animationDuration = (2.5 + Math.random() * 2).toFixed(1) + 's';
container.appendChild(span);
}
}
_preGenerateNextLeg() {
this._nextLegDir = this._pickNextDir(this.state.pathDir);
this._nextLegLen = null;
}
_npcOffsetForDir(dir, viewW, viewH) {
const dist = dir === 'right' || dir === 'left'
? Math.round(viewW * (3.0 + Math.random() * 0.8))
: Math.round(viewH * (3.0 + Math.random() * 0.8));
return {
nx: dir === 'right' ? dist : dir === 'left' ? -dist : 0,
ny: dir === 'down' ? dist : dir === 'up' ? -dist : 0,
dir,
};
}
showMap() {
this.show('map');
this._showController(true);
requestAnimationFrame(() => {
const {viewW, viewH} = this._getViewport();
if (this.state.currentQ === 0) {
this.state.pathDir = 'right';
} else if (this._nextLegDir) {
this.state.pathDir = this._nextLegDir;
this._nextLegDir = null;
this._nextLegLen = null;
} else {
this.state.pathDir = this._pickNextDir(this.state.pathDir);
}
this.state.worldX = 0;
this.state.worldY = 0;
this.state.lastDir = this.state.pathDir;
const {nx, ny} = this._npcOffsetForDir(this.state.pathDir, viewW, viewH);
this.state.npcWorldX = nx;
this.state.npcWorldY = ny;
this.state.npcSpawned = true;
this._generateTrees();
document.getElementById('hud-name').textContent = this.state.playerName||'ASH';
this.updateHUD();
const q = this.state.questions[this.state.currentQ];
const npcEl = document.getElementById('map-npc');
if (q && npcEl) setNPC(npcEl, NPC[q.npc]||'🧑');
this._placeMapSprites();
this._checkNPCProximity();
this._updateDirArrow(false);
Music.stopBattle();
Music.play();
saveGame(this.state);
this.flashSaveDot();
const npcEl2 = document.getElementById('map-npc');
if (npcEl2) npcEl2.onclick = ()=>this._talkToNPC();
const musicBtn = document.getElementById('music-toggle');
if (musicBtn) musicBtn.onclick = () => Music.toggle();
});
}
updateHUD() {
const tot=this.state.questions.length||100, done=this.state.currentQ, pct=(done/tot)*100;
document.getElementById('hud-score').textContent = this.state.score.toLocaleString();
document.getElementById('hud-streak').textContent = this.state.streak+(this.state.streak>=3?'🔥':'');
document.getElementById('hud-correct').textContent = `${this.state.correct}/${done}`;
document.getElementById('map-prog-text').textContent = `${done}/${tot}`;
const bar=document.getElementById('map-prog-bar');
if(bar){ bar.style.width=pct+'%'; bar.style.background=pct<40?'var(--hp-green)':pct<75?'var(--hp-yellow)':'#60c8ff'; }
}
flashSaveDot() {
const dot=document.getElementById('save-dot');
if(!dot)return; dot.style.opacity='1';
setTimeout(()=>{ dot.style.opacity='.4'; },1500);
}
/* ── BATTLE ───────────────────────────────────────────── */
startQuestion() {
this._stopWalkLoop();
this._heldKeys.clear();
const q=this.state.questions[this.state.currentQ];
if(!q){ this.showComplete(); return; }
this.show('battle');
this._showController(true);
Music.playBattle();
this.state.answering=false;
this.state.cursor=0;
setNPC(document.getElementById('battle-npc-sprite'), NPC[q.npc]||'🧑');
document.getElementById('battle-npc-name').textContent = q.npc.toUpperCase();
document.getElementById('battle-speaker').textContent = q.npc.toUpperCase();
document.getElementById('battle-player-name').textContent= (this.state.playerName||'ASH').toUpperCase();
document.getElementById('battle-q-num').textContent = this.state.currentQ+1;
document.getElementById('battle-pts').textContent = this.state.score.toLocaleString();
document.getElementById('battle-arrow').style.display = 'none';
document.getElementById('battle-choices').innerHTML = '';
this.typeText('battle-text', q.text, ()=>this.renderChoices(q));
}
renderChoices(q) {
const container=document.getElementById('battle-choices');
container.innerHTML='';
this.state.cursor=0;
const isMulti = Array.isArray(q.answers);
const indices = [0,1,2,3];
for (let i = indices.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[indices[i], indices[j]] = [indices[j], indices[i]];
}
const correctShuffledIdx = isMulti ? null : indices.indexOf(q.answer);
const correctShuffledSet = isMulti ? new Set(q.answers.map(a => indices.indexOf(a))) : null;
q._correctShuffledSet = correctShuffledSet;
q._indices = indices;
if (isMulti) {
q._correctDisplayText = q.answers.map(a => q.options[a]).join(' AND ');
} else {
q._correctDisplayText = q.options[q.answer];
}
const selectedSlots = new Set();
let confirmBtn = null;
if (isMulti) {
confirmBtn = document.createElement('button');
confirmBtn.className='choice-btn confirm-btn confirm-inactive';
confirmBtn.textContent='✔ CONFIRM';
confirmBtn.addEventListener('click', () => {
if (this.state.answering || selectedSlots.size !== 2) return;
this.pickMulti(selectedSlots, correctShuffledSet, q, container);
});
}
indices.forEach((origIdx, slotIdx) => {
const btn=document.createElement('button');
btn.className='choice-btn';
btn.setAttribute('data-letter', slotIdx + 1);
btn.textContent=q.options[origIdx];
if (isMulti) {
btn.addEventListener('click', () => {
if (this.state.answering) return;
if (btn.classList.contains('selected')) {
btn.classList.remove('selected');
selectedSlots.delete(slotIdx);
} else {
if (selectedSlots.size >= 2) return;
btn.classList.add('selected');
selectedSlots.add(slotIdx);
}
confirmBtn.classList.toggle('confirm-inactive', selectedSlots.size !== 2);
});
} else {
btn.addEventListener('click',()=>this.pick(slotIdx, correctShuffledIdx, q, container));
}
btn.addEventListener('mouseenter', () => {
this.state.cursor = slotIdx;
this._renderCursor();
});
container.appendChild(btn);
});
if (isMulti) {
confirmBtn.addEventListener('mouseenter', () => {
if (confirmBtn.classList.contains('confirm-inactive')) return;
this.state.cursor = 4;
this._renderCursor();
});
container.appendChild(confirmBtn);
container._confirmBtn = confirmBtn;
}
this._renderCursor();
}
pick(chosen, correctIdx, q, container) {
if(this.state.answering)return;
this.state.answering=true;
const btns=container.querySelectorAll('.choice-btn');
const correct=chosen===correctIdx;
btns.forEach(b=>{ b.classList.remove('cursor'); b.classList.add('disabled'); });
btns[correctIdx].classList.remove('disabled'); btns[correctIdx].classList.add('correct');
if(!correct) btns[chosen].classList.add('wrong');
if(correct){
this.state.streak++; this.state.correct++;
this.state.maxStreak=Math.max(this.state.maxStreak,this.state.streak);
this.state.score+=this.state.streak>=5?200:this.state.streak>=3?150:100;
if(this.state.streak>=3) SFX.streak(); else SFX.correct();
} else { this.state.streak=0; this.state.wrong++; SFX.wrong(); }
setTimeout(()=>{
this._preGenerateNextLeg();
this.showResult(correct,q);
},120);
}
pickMulti(selectedSlots, correctSet, q, container) {
if(this.state.answering)return;
this.state.answering=true;
const btns=Array.from(container.querySelectorAll('.choice-btn:not(.confirm-btn)'));
const correct = selectedSlots.size === correctSet.size &&
[...selectedSlots].every(s => correctSet.has(s));
btns.forEach((b,i)=>{
b.classList.remove('cursor','selected');
b.classList.add('disabled');
if(correctSet.has(i)) b.classList.add('correct');
else if(selectedSlots.has(i) && !correctSet.has(i)) b.classList.add('wrong');
});
const cb = container.querySelector('.confirm-btn');
if(cb) cb.style.display='none';
if(correct){
this.state.streak++; this.state.correct++;
this.state.maxStreak=Math.max(this.state.maxStreak,this.state.streak);
this.state.score+=this.state.streak>=5?200:this.state.streak>=3?150:100;
if(this.state.streak>=3) SFX.streak(); else SFX.correct();
} else { this.state.streak=0; this.state.wrong++; SFX.wrong(); }
setTimeout(()=>{
this._preGenerateNextLeg();
this.showResult(correct,q);
},120);
}
/* ── RESULT ───────────────────────────────────────────── */
showResult(correct,q) {
this.show('result');
this._showController(false);
Music.stopBattle();
Music.pause();
document.getElementById('result-icon').textContent = correct?'✓':'✗';
const lbl=document.getElementById('result-label');
lbl.textContent = correct ? CORRECT_FB[Math.floor(Math.random()*CORRECT_FB.length)]
: WRONG_FB[Math.floor(Math.random()*WRONG_FB.length)];
lbl.className = 'result-label '+(correct?'correct':'wrong');
const ansEl=document.getElementById('result-correct-ans');
const ptsEl=document.getElementById('result-pts');
if(correct){
ptsEl.textContent=this.state.streak>=5?'+200 PTS 🔥 STREAK!':this.state.streak>=3?'+150 PTS 🔥 HOT!':'+100 PTS';
ptsEl.style.display='block'; ansEl.classList.remove('visible');
} else {
ptsEl.style.display='none';
const correctText = q._correctDisplayText || (q.answers ? q.answers.map(a=>q.options[a]).join(' AND ') : q.options[q.answer]);
ansEl.textContent='✓ Correct answer'+(q.answers?'s':'')+': '+correctText;
ansEl.classList.add('visible');
}
document.getElementById('result-explanation').textContent=q.explanation;
const contBtn = document.getElementById('btn-result-cont');
const doNext = () => {
this.state.currentQ++;
saveGame(this.state);
if(this.state.currentQ>=this.state.questions.length){ clearSave(); this.showComplete(); }
else if(MILESTONES[this.state.currentQ]) this.showLevelUp();
else this.showMap();
};
contBtn.onclick = doNext;
const resultScreen = document.getElementById('screen-result');
resultScreen.addEventListener('pointerdown', doNext, { once: true });
}
/* ── LEVEL UP ─────────────────────────────────────────── */
showLevelUp() {
this.show('levelup');
SFX.levelUp();
this._showController(false);
const ms=MILESTONES[this.state.currentQ];
const pct=(this.state.currentQ/(this.state.questions.length||100))*100;
document.getElementById('lu-name').textContent = this.state.playerName||'ASH';
document.getElementById('lu-stars').textContent = `${ms.stars} BADGE EARNED! ${ms.stars}`;
document.getElementById('lu-badge').textContent = ms.badge;
document.getElementById('lu-prog-label').textContent=`${this.state.currentQ} / 100`;
const bar=document.getElementById('lu-prog-inner');
if(bar)bar.style.width=pct+'%';
document.getElementById('btn-lu-cont').onclick=()=>this.showMap();
}
/* ── COMPLETE ─────────────────────────────────────────── */
showComplete() {
this.show('complete');
SFX.complete();
this._showController(false);
const name=this.state.playerName||'ASH', tot=this.state.questions.length||100;
const acc=tot>0?Math.round((this.state.correct/tot)*100):0;
document.getElementById('complete-name').textContent=name;
document.getElementById('complete-stats').textContent=
`FINAL SCORE: ${this.state.score.toLocaleString()}\n`+
`CORRECT: ${this.state.correct} / ${tot}\n`+
`ACCURACY: ${acc}%\n`+
`BEST STREAK: ${this.state.maxStreak} 🔥`;
document.getElementById('btn-play-again').onclick=()=>{ clearSave(); this.startFresh(); };
}
/* ── SCREEN SWITCH ────────────────────────────────────── */
show(name) {
Object.values(this.screens).forEach(s=>s.classList.remove('active'));
const t=this.screens[name]; if(t)t.classList.add('active');
this.state.screen=name;
}
/* ── TYPEWRITER ───────────────────────────────────────── */
typeText(id,text,onDone) {
if(this.state.twTimer){clearInterval(this.state.twTimer);this.state.twTimer=null;}
const el=document.getElementById(id); if(!el)return; el.textContent='';
let i=0;
this.state.twTimer=setInterval(()=>{
if(i<text.length){el.textContent+=text[i++]; if(i%2===0) SFX.type();}
else{clearInterval(this.state.twTimer);this.state.twTimer=null;if(onDone)onDone();}
},26);
}
/* ── TOAST ────────────────────────────────────────────── */
toast(msg,ms=2600){
const el=document.getElementById('toast');
el.textContent=msg; el.classList.remove('hidden');
setTimeout(()=>el.classList.add('hidden'),ms);
}
}
window.addEventListener('DOMContentLoaded',()=>{ new Game(); });