Improved userscript with dynamic time management based on game phase, configurable Stockfish threads/hash, and the existing evaluation bar and move analysis.
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// ==UserScript==
// @name Chess.com Bot — Dynamic Time Management
// @namespace thehackerclient
// @version 3.0 // Major update: Dynamic Time Management & Engine Options
// @description Improved userscript with dynamic time management based on game phase, configurable Stockfish threads/hash, and the existing evaluation bar and move analysis.
// @match https://www.chess.com/*
// @auther thehackerclient
// @grant GM_getResourceText
// @license MIT
// @require https://code.jquery.com/jquery-3.6.0.min.js
// @resource stockfish.js https://cdnjs.cloudflare.com/ajax/libs/stockfish.js/9.0.0/stockfish.js
// @run-at document-start
// ==/UserScript==
(function () {
'use strict';
console.log('--- Chess Bot v3.1 Initializing: Stability Refactor Complete ---');
// 🎯 Use a reliable CDN link for Stockfish Web Worker
const STOCKFISH_URL = 'https://cdn.jsdelivr.net/gh/nmvsh/Stockfish.js@master/stockfish.js';
// --------- Config & state ---------
const STORAGE_KEY = 'chess_bot_settings_v3_1';
const DEFAULTS = {
autoRun: true,
autoMovePiece: false,
delayMin: 1.0,
delayMax: 3.0,
stockfishThreads: 4,
stockfishHash: 256,
lastDepth: 18,
showPV: true,
colors: { move1: 'rgba(235,97,80,0.7)', move2:'rgba(255,165,0,0.6)', move3:'rgba(255,255,0,0.5)', threat:'rgba(0,128,255,0.35)' },
highlightMs: 1400
};
let settings = Object.assign({}, DEFAULTS, loadSettings());
// State variables
let board = null;
let engine = { worker: null };
let candidateMoves = [];
let isThinking = false;
let canGo = true;
let lastPlayedMove = null;
let lastPositionBestScore = { score: 0, mate: null, turn: 'w', initial: true };
let lastMoveClassification = { type: 'N/A', cpl: 0, move: '' };
// Move Classification Thresholds (in centipawns)
const T_BEST = 0;
const T_EXCELLENT = 5;
const T_GOOD = 15;
const T_INACCURACY = 40;
const T_MISTAKE = 120;
const T_BLUNDER = 250;
// Debounce and throttle helpers (using standard JS)
function debounce(fn, wait){ let t; return function(...a){ clearTimeout(t); t = setTimeout(()=>fn.apply(this,a), wait); }; }
function throttle(fn, wait){ let last=0; return function(...a){ const now=Date.now(); if(now-last>wait){ last=now; fn.apply(this,a);} }; }
// Robust board detection
function findBoard(){
const selectors = ['chess-board', 'wc-chess-board', '[data-cy="board"]', '.board'];
for (const selector of selectors) {
const el = document.querySelector(selector);
// Ensure the element is visible and not part of an archive/puzzle board only
if (el && el.offsetWidth > 100) return el;
}
return null;
}
// --------- Persistence & Engine Setup ---------
function loadSettings(){ try{ const raw = localStorage.getItem(STORAGE_KEY); return raw? JSON.parse(raw): {}; }catch(e){ return {}; } }
function saveSettings(){ try{ localStorage.setItem(STORAGE_KEY, JSON.stringify(settings)); }catch(e){} }
// Refactored engine creation for maximum reliability
function createStockfishWorker(){
try{
if(engine.worker) engine.worker.terminate();
// 🎯 The key change: Load the worker directly from the CDN URL
engine.worker = new Worker(STOCKFISH_URL);
engine.worker.onmessage = e => handleEngineMessage(e.data);
engine.worker.onerror = e => console.error('Stockfish Worker Error:', e);
// Initialize Stockfish options
engine.worker.postMessage('ucinewgame');
engine.worker.postMessage(`setoption name Threads value ${settings.stockfishThreads}`);
engine.worker.postMessage(`setoption name Hash value ${settings.stockfishHash}`);
console.log(`Stockfish worker created from CDN. Threads: ${settings.stockfishThreads}, Hash: ${settings.stockfishHash}MB. UCINewGame sent.`);
}catch(err){ console.error('FATAL: Failed to create Stockfish worker.', err); }
}
function safeRestartEngine(){
console.log('Restarting engine to apply new settings...');
isThinking = false;
try{ if(engine.worker) engine.worker.terminate(); }catch(e){}
createStockfishWorker();
}
// --------- Evaluation and Classification Logic ---------
function updateEvaluationBar(scoreCp, mateScore) {
const barWhiteEl = document.getElementById('evalBarWhiteAdvantage');
const scoreTextEl = document.getElementById('evalPercent');
if (!barWhiteEl || !scoreTextEl) return;
let displayScore;
let barHeightPercent;
if (mateScore !== null) {
displayScore = mateScore > 0 ? `M+${mateScore}` : `M${mateScore}`;
barHeightPercent = mateScore > 0 ? 98 : 2;
} else {
const clampedCp = Math.max(-800, Math.min(800, scoreCp));
barHeightPercent = 50 + (clampedCp / 16);
barHeightPercent = Math.max(0, Math.min(100, barHeightPercent));
displayScore = (scoreCp / 100).toFixed(2);
if (scoreCp >= 0) displayScore = `+${displayScore}`;
}
barWhiteEl.style.height = `${barHeightPercent}%`;
scoreTextEl.innerText = displayScore;
const whiteAdvantage = barHeightPercent;
if (whiteAdvantage > 80) { scoreTextEl.style.color = '#fff'; scoreTextEl.style.top = '10%'; scoreTextEl.style.transform = 'translate(-50%, 0)'; }
else if ((100 - whiteAdvantage) > 80) { scoreTextEl.style.color = '#000'; scoreTextEl.style.top = '90%'; scoreTextEl.style.transform = 'translate(-50%, -100%)'; }
else { scoreTextEl.style.color = '#1a1a1a'; scoreTextEl.style.top = '50%'; scoreTextEl.style.transform = 'translate(-50%, -50%)'; }
}
function classifyMove(cplLoss) {
if (cplLoss <= T_BEST) return 'Best Move';
if (cplLoss <= T_EXCELLENT) return 'Excellent';
if (cplLoss <= T_GOOD) return 'Good';
if (cplLoss <= T_INACCURACY) return 'Inaccuracy';
if (cplLoss <= T_MISTAKE) return 'Mistake';
if (cplLoss <= T_BLUNDER) return 'Blunder';
return 'Major Blunder';
}
function updateMoveClassificationDisplay() {
const el = document.getElementById('moveClassText');
if (!el) return;
let classification = lastMoveClassification.type;
let move = lastMoveClassification.move;
el.innerHTML = `${move ? `(${move})` : ''} <strong>${classification}</strong>`;
el.title = lastMoveClassification.cpl > 0 ? `CPL: ${lastMoveClassification.cpl.toFixed(0)}` : '';
let color = '#333';
switch(classification) {
case 'Major Blunder':
case 'Blunder': color = '#d9534f'; break;
case 'Mistake': color = '#f0ad4e'; break;
case 'Inaccuracy': color = '#f7e382'; break;
case 'Good': color = '#5bc0de'; break;
case 'Excellent': color = '#5cb85c'; break;
case 'Best Move': color = '#008000'; break;
case 'Thinking...': color = '#0d6efd'; break;
default: color = '#666'; break;
}
el.style.color = color;
}
// --------- Engine message parsing and classification ---------
function parseScore(match){
if(!match) return 0;
const type = match[1];
const val = parseInt(match[2]);
if(type === 'cp') return val;
// Mate scores are normalized to extreme centipawns
return val > 0 ? 100000 - val : -100000 - val;
}
function handleEngineMessage(msg){
if(typeof msg !== 'string') return;
if(msg.startsWith('info') && msg.includes('pv')){
const pvTokens = msg.split(' pv ')[1].trim().split(/\s+/);
if(pvTokens && pvTokens.length){
const scoreMatch = msg.match(/score (cp|mate) (-?\d+)/);
const score = parseScore(scoreMatch);
let rawCp = null; let rawMate = null;
if (scoreMatch) { const type = scoreMatch[1]; const val = parseInt(scoreMatch[2]); if (type === 'cp') rawCp = val; if (type === 'mate') rawMate = val; }
const depthMatch = msg.match(/depth (\d+)/);
const depth = depthMatch? parseInt(depthMatch[1]) : settings.lastDepth;
const move = pvTokens[0];
const exists = candidateMoves.find(c=>c.move===move);
if(!exists) candidateMoves.push({move, score, depth, pv: pvTokens, rawCp, rawMate});
else if(depth>exists.depth) { Object.assign(exists, {score, depth, pv: pvTokens, rawCp, rawMate}); }
}
}
if(msg.startsWith('bestmove')){
candidateMoves.sort((a,b) => b.score - a.score);
candidateMoves = candidateMoves.slice(0,3);
showTopMoves();
if(candidateMoves.length > 0) {
const bestMove = candidateMoves[0];
const finalCp = bestMove.rawCp !== null ? bestMove.rawCp : bestMove.score;
const finalMate = bestMove.rawMate;
const currentTurn = board.game.getTurn();
// --- Move Quality Analysis ---
if (!lastPositionBestScore.initial && lastPlayedMove) {
const scoreBefore = lastPositionBestScore.score;
const turnBefore = lastPositionBestScore.turn;
const movePlayed = lastPlayedMove;
const expectedAdvantage = turnBefore === 'w' ? scoreBefore : -scoreBefore;
const actualAdvantage = turnBefore === 'w' ? finalCp : -finalCp;
let cplLoss = expectedAdvantage - actualAdvantage;
const absCplLoss = Math.max(0, cplLoss);
if (lastPositionBestScore.mate !== null || finalMate !== null || Math.abs(cplLoss) > 5000) {
// Skip CPL calculation if there was a mate or extreme score change
lastMoveClassification = { type: 'Analysis Complete', cpl: 0, move: movePlayed };
} else {
const classification = classifyMove(absCplLoss);
lastMoveClassification = { type: classification, cpl: absCplLoss, move: movePlayed };
}
console.log(`Move Analysis (${movePlayed}, ${turnBefore}): CPL ${absCplLoss.toFixed(0)}, Type: ${lastMoveClassification.type}`);
lastPlayedMove = null;
}
// Update the last position score for the *next* analysis.
lastPositionBestScore = {
score: finalCp,
mate: finalMate,
turn: currentTurn,
initial: false
};
updateEvaluationBar(finalCp, finalMate);
updateMoveClassificationDisplay();
}
const move = msg.split(' ')[1];
if(settings.autoMovePiece && move) performMove(move);
isThinking = false;
}
}
// --------- Highlighting and Move Execution (Simplified for stability) ---------
function mapSquareForBoard(sq){
if(!board || !sq || sq.length<2) return sq;
// Check for common 'flipped' class on chess.com boards
const isFlipped = board.classList && board.classList.contains('flipped');
if(!isFlipped) return sq;
const file = sq[0];
const rank = sq[1];
const flippedFile = String.fromCharCode('h'.charCodeAt(0) - (file.charCodeAt(0)-'a'.charCodeAt(0)));
const flippedRank = (9 - parseInt(rank)).toString();
return flippedFile + flippedRank;
}
function getBoardSquareEl(sq){
try{ return board.querySelector(`[data-square="${sq}"]`) || board.querySelector(`.square-${sq}`); }
catch(e){ return null; }
}
function attachHighlight(el, cls, color){
if(!el) return null;
let overlay = el.querySelector('.' + cls);
if(!overlay){ overlay = document.createElement('div'); overlay.className = cls; overlay.style.cssText='position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:60;border-radius:3px;'; el.appendChild(overlay); }
overlay.style.backgroundColor = color;
return overlay;
}
function detachHighlights(selector){
try{ document.querySelectorAll(selector).forEach(n=>n.parentElement && n.parentElement.removeChild(n)); }
catch(e){}
}
function addPVNote(cm, index){
try{
const id = `pvNote-${index}`;
let note = document.getElementById(id);
if(!note){
note = document.createElement('div');
note.id=id;
note.style.cssText = `
position:absolute; right:6px; top:${6 + index*28}px;
padding:6px 8px; border-radius:6px; background:rgba(0,0,0,0.75);
color:#fff; z-index:120; font-size:12px; font-family:Inter,Arial,sans-serif;
`;
board.parentElement.appendChild(note);
}
let scoreDisplay = cm.rawMate !== null ? (cm.rawMate > 0 ? `M+${cm.rawMate}` : `M${cm.rawMate}`) : (cm.rawCp !== null ? (cm.rawCp/100).toFixed(2) : (cm.score/100).toFixed(2));
note.innerText = `#${index+1} ${cm.move} (${scoreDisplay}) PV: ${cm.pv.slice(0,6).join(' ')}`;
// Auto-remove PV note after highlight duration
setTimeout(()=>{ if(note && note.parentElement) note.parentElement.removeChild(note); }, settings.highlightMs + 5000);
}catch(e){}
}
function showTopMoves(){
if(!board || !board.game) return;
detachHighlights('.botMoveHighlight');
detachHighlights('.botThreatHighlight');
// 1. Highlight Top Moves
candidateMoves.forEach((cm, i) => {
const from = mapSquareForBoard(cm.move.slice(0,2));
const to = mapSquareForBoard(cm.move.slice(2,4));
const color = i===0? settings.colors.move1 : (i===1? settings.colors.move2 : settings.colors.move3);
[from, to].forEach(sq => {
const el = getBoardSquareEl(sq);
if(el) {
const ov = attachHighlight(el, 'botMoveHighlight', color);
setTimeout(()=>{ if(ov && ov.parentElement) ov.parentElement.removeChild(ov); }, settings.highlightMs);
}
});
if(settings.showPV && cm.pv && cm.pv.length){ addPVNote(cm, i); }
});
// 2. Show Threats (opponent's legal moves)
showThreats();
}
function showThreats(){
if(!board || !board.game) return;
try{
// Note: Chess.com's internal game object (board.game) needs to provide legal moves
const legalMoves = board.game.getLegalMoves ? board.game.getLegalMoves() : [];
const turn = board.game.getTurn ? board.game.getTurn() : 'w';
const opponent = turn === 'w' ? 'b' : 'w';
legalMoves.forEach(m=>{
// Only highlight opponent's moves if they are capturable by the current player
if(m.color===opponent){
const sq = mapSquareForBoard(m.to);
const el = getBoardSquareEl(sq);
if(el){
const ov = attachHighlight(el, 'botThreatHighlight', settings.colors.threat);
setTimeout(()=>{ if(ov && ov.parentElement) ov.parentElement.removeChild(ov); }, settings.highlightMs);
}
}
});
}catch(e){ console.warn('Failed to show threats', e); }
}
function performMove(moveUCI){
if(!board || !board.game) return;
try{
const from = moveUCI.slice(0,2); const to = moveUCI.slice(2,4); const promotion = moveUCI.length>4? moveUCI[4] : null;
const legal = board.game.getLegalMoves ? board.game.getLegalMoves() : [];
for(const m of legal){ if(m.from===from && m.to===to){
if(m.promotion && promotion){ m.promotion = promotion; }
// Use Chess.com's internal move function
board.game.move(Object.assign({}, m, {animate:false, userGenerated:true}));
console.log(`Auto-moving piece: ${moveUCI}`);
break;
}}
}catch(e){ console.error('performMove failed', e); }
}
// -------------------------------------------------------------------
// 🎯 CORE LOGIC FOR ENGINE COMMANDS (runChessEngine)
// -------------------------------------------------------------------
function runChessEngine(type, value){
if(!board || !engine.worker || !board.game) {
console.warn('Engine run skipped: Missing board, worker, or game object.');
return;
}
try{
const fen = board.game.getFEN ? board.game.getFEN() : 'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1';
if(isThinking) engine.worker.postMessage('stop');
candidateMoves = [];
engine.worker.postMessage('position fen ' + fen);
isThinking = true;
const command = type === 'depth'
? `go depth ${value}`
: `go movetime ${Math.max(100, value)}`; // Stockfish uses time limit (ms) for deeper calculation
engine.worker.postMessage(command);
console.log(`Engine command sent: ${command}`);
}catch(e){ console.error('runChessEngine error', e); }
}
// -------------------------------------------------------------------
// 🎯 DYNAMIC TIME MANAGEMENT (autoLoop)
// -------------------------------------------------------------------
const autoLoop = throttle(()=>{
if(!board || !board.game) return;
if(settings.autoRun && canGo && !isThinking && board.game.getTurn() === board.game.getPlayingAs()){
canGo = false;
const history = board.game.getMoveHistory ? board.game.getMoveHistory() : (board.game.history || []);
const halfMoveCount = history.length;
const moveNumber = Math.floor((halfMoveCount + 1) / 2); // 1-indexed full move
let targetDelaySeconds;
// --- Dynamic Time Management Logic ---
const minTime = settings.delayMin;
const maxTime = settings.delayMax;
if (moveNumber <= 10) {
// Opening (Moves 1-10): Faster, more standard time
targetDelaySeconds = minTime * 1.0;
} else if (moveNumber <= 30) {
// Middlegame (Moves 11-30): Max complexity, use max time
targetDelaySeconds = maxTime;
} else {
// Endgame (Moves 31+): High accuracy required, moderate time
targetDelaySeconds = minTime + (maxTime - minTime) * 0.7; // ~70% of max
}
// Apply slight randomization
const variance = 0.95 + Math.random() * 0.1; // +/- 5%
targetDelaySeconds = Math.max(minTime * 0.5, targetDelaySeconds * variance);
const movetimeMs = Math.round(targetDelaySeconds * 1000);
console.log(`[Move ${moveNumber}] Dynamic Time: ${targetDelaySeconds.toFixed(2)}s (${movetimeMs}ms)`);
setTimeout(()=>{
runChessEngine('movetime', movetimeMs);
canGo = true;
}, 100);
}
}, 150);
// --------- GUI Setup ---------
function initGUI(){
board = findBoard();
if(!board) return false;
if(document.getElementById('botGUI_v3_wrapper')) return true;
const wrapper = document.createElement('div');
wrapper.id = 'botGUI_v3_wrapper';
wrapper.style.cssText = 'display:flex; align-items:flex-start;';
const container = document.createElement('div');
container.id = 'botGUI_v3';
container.style.cssText = `
background:rgba(255,255,255,0.95);
padding:10px;
margin:8px 0 8px 8px;
max-width:280px;
font-family:Inter,Arial,sans-serif;
border-radius:8px;
box-shadow:0 6px 20px rgba(0,0,0,0.08);
box-sizing: border-box;
`;
container.innerHTML = `
<div style="font-weight:700;margin-bottom:6px;font-size:16px;color:#333;border-bottom:2px solid #eee;padding-bottom:6px;">
🤖 Chess Bot Live Analysis v3.1
</div>
<div id="moveClassification" style="margin-top:4px;margin-bottom:8px;font-weight:600;font-size:13px;">
Last Move: <span id="moveClassText" style="color:#666;">N/A</span>
</div>
<div id="depthText" style="margin-top:10px;font-size:13px;">Manual Depth: <strong>${settings.lastDepth}</strong></div>
<input type="range" id="depthSlider" min="1" max="30" value="${settings.lastDepth}" step="1" style="width:100%; height: 20px; margin: 4px 0;">
<div style="margin-top:10px; font-weight: 600; font-size:13px;">Dynamic Engine Time (seconds)</div>
<div style="margin-top:4px;display:flex;justify-content:space-between;align-items:center;font-size:12px;">
<label style="color:#444;">Min Base:</label>
<input id="delayMinInput" type="number" min="0.1" step="0.1" value="${settings.delayMin}" style="width:60px;padding:3px;border:1px solid #ccc;border-radius:3px;font-size:12px;">
<label style="color:#444;">Max Cap:</label>
<input id="delayMaxInput" type="number" min="0.1" step="0.1" value="${settings.delayMax}" style="width:60px;padding:3px;border:1px solid #ccc;border-radius:3px;font-size:12px;">
</div>
<div style="margin-top:12px; font-weight: 600; font-size:13px;">Stockfish Performance (Requires Reload)</div>
<div style="margin-top:4px;display:flex;justify-content:space-between;align-items:center;font-size:12px;">
<label style="color:#444;">Threads:</label>
<input id="threadsInput" type="number" min="1" max="16" step="1" value="${settings.stockfishThreads}" style="width:60px;padding:3px;border:1px solid #ccc;border-radius:3px;font-size:12px;">
<label style="color:#444;">Hash (MB):</label>
<input id="hashInput" type="number" min="16" max="2048" step="32" value="${settings.stockfishHash}" style="width:60px;padding:3px;border:1px solid #ccc;border-radius:3px;font-size:12px;">
</div>
<div style="margin-top:12px;display:flex;flex-direction:column;gap:4px;font-size:13px;">
<div style="cursor:pointer;"><input type="checkbox" id="autoRunCB" style="margin-right:5px;"> <label for="autoRunCB" style="cursor:pointer;">Auto Run Analysis</label></div>
<div style="cursor:pointer;"><input type="checkbox" id="autoMoveCB" style="margin-right:5px;"> <label for="autoMoveCB" style="cursor:pointer;">Auto Move (⚠️ Caution)</label></div>
</div>
<div style="margin-top:15px;display:flex;gap:8px;">
<button id="reloadBtn" style="flex:1;padding:8px 6px;border-radius:6px;border:1px solid #ccc;cursor:pointer;background-color:#f8f9fa;color:#333;font-weight:600;">Reload Engine</button>
<button id="analyseBtn" style="flex:1;padding:8px 6px;border-radius:6px;background-color:#0d6efd;color:#fff;border:none;cursor:pointer;font-weight:600;">Analyse Now (Manual Depth)</button>
</div>
<div style="margin-top:8px;font-size:11px;color:#666;text-align:center;">Top 3 moves and threats are highlighted briefly.</div>
`;
// Evaluation Bar HTML
const evalBarHtml = `
<div id="evalBarWrapper" style="margin: 8px 8px 8px 8px; display: flex; flex-direction: column; align-items: center; max-height: 400px; flex-shrink: 0;">
<div style="font-size:12px; color:#666; font-weight:600; text-align:center;">Evaluation</div>
<div id="evalBar" style="
height: 300px;
width: 24px;
border-radius: 4px;
overflow: hidden;
box-shadow: 0 2px 5px rgba(0,0,0,0.2);
position: relative;
margin-top: 4px;
background-color: #000;
">
<div id="evalBarWhiteAdvantage" style="
background-color: #fff;
position: absolute;
bottom: 0;
width: 100%;
height: 50%;
transition: height 0.3s ease-out;
"></div>
<div id="evalPercent" style="
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
font-weight: 700;
color: #1a1a1a;
font-size: 11px;
text-shadow: 0 0 1px #fff;
width: 100%;
text-align: center;
z-index: 10;
transition: all 0.3s ease-out;
">+0.00</div>
</div>
<div style="font-size:10px; color:#666; margin-top:2px;">W% / B%</div>
</div>
`;
try{
wrapper.appendChild(container);
wrapper.innerHTML += evalBarHtml;
// Attempt to insert the wrapper near the board, usually its parent or a sibling
board.parentElement.appendChild(wrapper);
}catch(e){
document.body.appendChild(wrapper);
}
// Attach Event Listeners
document.getElementById('autoRunCB').checked = !!settings.autoRun;
document.getElementById('autoMoveCB').checked = !!settings.autoMovePiece;
document.getElementById('depthSlider').oninput = e => { settings.lastDepth = parseInt(e.target.value); document.getElementById('depthText').innerHTML = `Manual Depth: <strong>${settings.lastDepth}</strong>`; saveSettings(); };
document.getElementById('autoRunCB').onchange = e => { settings.autoRun = e.target.checked; saveSettings(); };
document.getElementById('autoMoveCB').onchange = e => { settings.autoMovePiece = e.target.checked; saveSettings(); };
// Time inputs
document.getElementById('delayMinInput').onchange = e => {
settings.delayMin = parseFloat(e.target.value) || 0.1;
if(settings.delayMin > settings.delayMax) settings.delayMax = settings.delayMin;
document.getElementById('delayMaxInput').value = settings.delayMax;
saveSettings();
};
document.getElementById('delayMaxInput').onchange = e => {
settings.delayMax = parseFloat(e.target.value) || 0.1;
if(settings.delayMax < settings.delayMin) settings.delayMin = settings.delayMax;
document.getElementById('delayMinInput').value = settings.delayMin;
saveSettings();
};
// Performance inputs (trigger engine restart)
document.getElementById('threadsInput').onchange = e => {
settings.stockfishThreads = parseInt(e.target.value) || 1;
if(settings.stockfishThreads < 1) settings.stockfishThreads = 1;
e.target.value = settings.stockfishThreads;
saveSettings();
safeRestartEngine();
};
document.getElementById('hashInput').onchange = e => {
settings.stockfishHash = parseInt(e.target.value) || 128;
if(settings.stockfishHash < 16) settings.stockfishHash = 16;
e.target.value = settings.stockfishHash;
saveSettings();
safeRestartEngine();
};
document.getElementById('reloadBtn').onclick = () => { safeRestartEngine(); };
document.getElementById('analyseBtn').onclick = () => { runChessEngine('depth', settings.lastDepth); };
updateMoveClassificationDisplay();
console.log('GUI initialized.');
return true;
}
// --------- Initialization & observers ---------
async function waitUntil(conditionFn, interval=100){ return new Promise(resolve=>{ const t = setInterval(()=>{ try{ if(conditionFn()){ clearInterval(t); resolve(); } }catch(e){} }, interval); }); }
(async function init(){
// Wait for the board element to exist
await waitUntil(()=> findBoard());
// Wait for the board's internal game object to be initialized
await waitUntil(()=> (board = findBoard()) && board.game);
createStockfishWorker();
initGUI();
// Observe the body for board changes (e.g., game ending or new game starting)
const mo = new MutationObserver(debounce(()=>{
board = findBoard();
if(board && !document.getElementById('botGUI_v3_wrapper')) initGUI();
}, 300));
mo.observe(document.body, {childList:true, subtree:true});
// Main analysis loop: Checks periodically if a move is needed
setInterval(autoLoop, 150);
let lastMoveCount = null;
// Polling loop to detect moves made by the opponent or user
setInterval(()=>{
try{
if(board && board.game){
// Use getMoveHistory or fall back to history property
const moveHistory = board.game.getMoveHistory ? board.game.getMoveHistory() : (board.game.history || []);
const moves = moveHistory.length;
if(lastMoveCount === null) lastMoveCount = moves;
if(moves !== lastMoveCount){
const lastMove = moveHistory[moves - 1];
// Attempt to get UCI format of the move
lastPlayedMove = lastMove.uci || (lastMove.from + lastMove.to + (lastMove.promotion || ''));
lastMoveCount = moves;
// Reset display and indicate thinking
updateEvaluationBar(0, null);
lastMoveClassification = { type: 'Thinking...', cpl: 0, move: lastPlayedMove };
updateMoveClassificationDisplay();
if(settings.autoRun) {
autoLoop(); // Start dynamic time analysis
} else {
// Run a very quick analysis if autoRun is disabled, just to update the score/bar
runChessEngine('movetime', 500);
}
}
}
}catch(e){
console.error("Move detection interval error:", e);
}
}, 600);
console.log('Improved Chess Bot v3.1 is ready and stable.');
})();
})();