// ==UserScript==
// @name A.C.A.S (Advanced Chess Assistance System)
// @name:en A.C.A.S (Advanced Chess Assistance System)
// @name:fi A.C.A.S (Edistynyt shakkiavustusjärjestelmä)
// @name:zh-CN A.C.A.S（高级国际象棋辅助系统）
// @name:es A.C.A.S (Sistema Avanzado de Asistencia al Ajedrez)
// @name:hi A.C.A.S (उन्नत शतरंज सहायता प्रणाली)
// @name:ar A.C.A.S (نظام المساعدة المتقدم في الشطرنج)
// @name:pt A.C.A.S (Sistema Avançado de Assistência ao Xadrez)
// @name:ja A.C.A.S（先進的なチェス支援システム）
// @name:de A.C.A.S (Fortgeschrittenes Schach-Hilfesystem)
// @name:fr A.C.A.S (Système Avancé d'Assistance aux Échecs)
// @name:it A.C.A.S (Sistema Avanzato di Assistenza agli Scacchi)
// @name:ko A.C.A.S (고급 체스 보조 시스템)
// @name:nl A.C.A.S (Geavanceerd Schaakondersteuningssysteem)
// @name:pl A.C.A.S (Zaawansowany System Pomocy Szachowej)
// @name:tr A.C.A.S (Gelişmiş Satranç Yardım Sistemi)
// @name:vi A.C.A.S (Hệ Thống Hỗ Trợ Cờ Vua Nâng Cao)
// @name:uk A.C.A.S (Система передової допомоги в шахах)
// @name:ru A.C.A.S (Система расширенной помощи в шахматах)
// @description Enhance your chess performance with a cutting-edge real-time move analysis and strategy assistance system
// @description:en Enhance your chess performance with a cutting-edge real-time move analysis and strategy assistance system
// @description:fi Paranna shakkipelisi suorituskykyä huippuluokan reaaliaikaisen siirtoanalyysin ja strategisen avustusjärjestelmän avulla
// @description:zh-CN 利用尖端实时走法分析和策略辅助系统，提升您的国际象棋水平
// @description:es Mejora tu rendimiento en ajedrez con un sistema de análisis de movimientos en tiempo real y asistencia estratégica de vanguardia
// @description:hi अपने शतरंज प्रदर्शन को उन्नत करें, एक कटिंग-एज रियल-टाइम मूव विश्लेषण और रणनीति सहायता प्रणाली के साथ
// @description:ar قم بتحسين أداءك في الشطرنج مع تحليل حركات اللعب في الوقت الحقيقي ونظام مساعدة استراتيجية حديث
// @description:pt Melhore seu desempenho no xadrez com uma análise de movimentos em tempo real e um sistema avançado de assistência estratégica
// @description:ja 最新のリアルタイムのムーブ分析と戦略支援システムでチェスのパフォーマンスを向上させましょう
// @description:de Verbessern Sie Ihre Schachleistung mit einer hochmodernen Echtzeitzug-Analyse- und Strategiehilfe-System
// @description:fr Améliorez vos performances aux échecs avec une analyse de mouvement en temps réel de pointe et un système d'assistance stratégique
// @description:it Migliora le tue prestazioni agli scacchi con un sistema all'avanguardia di analisi dei movimenti in tempo reale e assistenza strategica
// @description:ko 최첨단 실시간 움직임 분석 및 전략 지원 시스템으로 체스 성과 향상
// @description:nl Verbeter je schaakprestaties met een geavanceerd systeem voor realtime zetanalyse en strategische ondersteuning
// @description:pl Popraw swoje osiągnięcia w szachach dzięki zaawansowanemu systemowi analizy ruchów w czasie rzeczywistym i wsparciu strategicznemu
// @description:tr Keskinleşmiş gerçek zamanlı hareket analizi ve strateji yardım sistemiyle satranç performansınızı artırın
// @description:vi Nâng cao hiệu suất cờ vua của bạn với hệ thống phân tích nước đi và hỗ trợ chiến thuật hiện đại
// @description:uk Покращуйте свою шахову гру з використанням передової системи аналізу ходів в режимі реального часу та стратегічної підтримки
// @description:ru Слава Украине
// @homepageURL https://hakorr.github.io/A.C.A.S
// @supportURL https://github.com/Hakorr/A.C.A.S/tree/main#why-doesnt-it-work
// @match https://www.chess.com/*
// @match https://lichess.org/*
// @match https://playstrategy.org/*
// @match https://www.pychess.org/*
// @match https://chess.org/*
// @match https://papergames.io/*
// @match https://vole.wtf/kilobytes-gambit/
// @match https://hakorr.github.io/A.C.A.S/*
// @match http://localhost/*
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_deleteValue
// @grant GM_listValues
// @grant GM_registerMenuCommand
// @grant GM_openInTab
// @grant GM_addStyle
// @grant unsafeWindow
// @run-at document-start
// @version 2.0.4
// @namespace HKR
// @author HKR
// @require https://greasyforks.org/scripts/470418-commlink-js/code/CommLinkjs.js
// @require https://greasyforks.org/scripts/470417-universalboarddrawer-js/code/UniversalBoardDrawerjs.js
// ==/UserScript==
/*
e e88~-_ e ,d88~~\
d8b d888 \ d8b 8888
/Y88b 8888 /Y88b `Y88b
/ Y88b 8888 / Y88b `Y88b,
/____Y88b d88b Y888 / d88b /____Y88b d88b 8888
/ Y88b Y88P "88_-~ Y88P / Y88b Y88P \__88P'
Advanced Chess Assistance System (A.C.A.S) v2 | Q3 2023
[WARNING]
- Please be advised that the use of A.C.A.S may violate the rules and lead to disqualification or banning from tournaments and online platforms.
- The developers of A.C.A.S and related systems will NOT be held accountable for any consequences resulting from its use.
- We strongly advise to use A.C.A.S only in a controlled environment ethically.*/
// DANGER ZONE - DO NOT PROCEED IF YOU DON'T KNOW WHAT YOU'RE DOING //
/*\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
//////////////////////////////////////////////////////////////////////
// DANGER ZONE - DO NOT PROCEED IF YOU DON'T KNOW WHAT YOU'RE DOING //
// PRODUCTION: 'https://hakorr.github.io/A.C.A.S/';
// DEVELOPMENT: 'http://localhost/A.C.A.S/';
const backendURL = 'https://hakorr.github.io/A.C.A.S/';
const domain = window.location.hostname.replace('www.', '');
const tempValueIndicator = '-temp-value-';
const dbValues = {
AcasConfig: 'AcasConfig',
playerColor: instanceID => 'playerColor' + tempValueIndicator + instanceID,
turn: instanceID => 'turn' + tempValueIndicator + instanceID,
fen: instanceID => 'fen' + tempValueIndicator + instanceID
};
function createInstanceVariable(dbValue) {
return {
set: (instanceID, value) => GM_setValue(dbValues[dbValue](instanceID), { value, 'date': Date.now() }),
get: instanceID => {
const data = GM_getValue(dbValues[dbValue](instanceID));
if(data?.date) {
data.date = Date.now();
GM_setValue(dbValues[dbValue](instanceID), data);
}
return data?.value;
}
}
}
const instanceVars = {
playerColor: createInstanceVariable('playerColor'),
turn: createInstanceVariable('turn'),
fen: createInstanceVariable('fen')
};
if(window?.location?.href?.includes(backendURL)) {
// expose variables and functions
unsafeWindow.USERSCRIPT = {
'GM_info': GM_info,
'GM_getValue': val => GM_getValue(val),
'GM_setValue': (val, data) => GM_setValue(val, data),
'GM_deleteValue': val => GM_deleteValue(val),
'GM_listValues': val => GM_listValues(val),
'tempValueIndicator': tempValueIndicator,
'dbValues': dbValues,
'instanceVars': instanceVars,
'CommLinkHandler': CommLinkHandler,
};
return;
}
// DANGER ZONE - DO NOT PROCEED IF YOU DON'T KNOW WHAT YOU'RE DOING //
/*\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
//////////////////////////////////////////////////////////////////////
// DANGER ZONE - DO NOT PROCEED IF YOU DON'T KNOW WHAT YOU'RE DOING //
function getUniqueID() {
return ([1e7]+-1e3+4e3+-8e3+-1e11).replace(/[018]/g, c =>
(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
)
}
const commLinkInstanceID = getUniqueID();
const blacklistedURLs = [
'https://www.chess.com/play',
'https://lichess.org/',
'https://chess.org/',
'https://papergames.io/en/chess',
'https://playstrategy.org/',
'https://www.pychess.org/',
'https://hakorr.github.io/A.C.A.S/',
'https://hakorr.github.io/A.C.A.S/why/',
'https://hakorr.github.io/A.C.A.S/tos/',
'http://localhost/A.C.A.S/'
];
const configKeys = {
'engineElo': 'engineElo',
'moveSuggestionAmount': 'moveSuggestionAmount',
'arrowOpacity': 'arrowOpacity',
'displayMovesOnExternalSite': 'displayMovesOnExternalSite',
'showMoveGhost': 'showMoveGhost',
'showOpponentMoveGuess': 'showOpponentMoveGuess',
'onlyShowTopMoves': 'onlyShowTopMoves',
'maxMovetime': 'maxMovetime',
'chessVariant': 'chessVariant',
'chessFont': 'chessFont',
'useChess960': 'useChess960'
};
const config = {};
Object.values(configKeys).forEach(key => {
config[key] = {
get: () => getGmConfigValue(key, commLinkInstanceID),
set: null
};
});
const debugModeActivated = false;
let BoardDrawer = null;
let chessBoardElem = null;
let lastBasicFen = null;
let chesscomVariantBoardCoordsTable = null;
let activeSiteMoveHighlights = [];
let inactiveGuiMoveMarkings = [];
let lastBoardRanks = null;
let lastBoardFiles = null;
let lastBoardSize = null;
let lastPieceSize = null;
let lastBoardOrientation = null;
const domainsWithoutDifferentBoardDimensionsArr = ['chess.org', 'lichess.org', 'papergames.io', 'vole.wtf'];
const arrowStyles = {
'best': `
fill: limegreen;
opacity: ${getConfigValue(configKeys.arrowOpacity)/100 || '0.9'};
stroke: rgb(0 0 0 / 50%);
stroke-width: 2px;
stroke-linejoin: round;
`,
'secondary': `
fill: dodgerblue;
opacity: ${getConfigValue(configKeys.arrowOpacity)/100 || '0.7'};
stroke: rgb(0 0 0 / 50%);
stroke-width: 2px;
stroke-linejoin: round;
`,
'opponent': `
fill: crimson;
stroke: rgb(0 0 0 / 25%);
stroke-width: 2px;
stroke-linejoin: round;
display: none;
opacity: ${getConfigValue(configKeys.arrowOpacity)/100 || '0.3'};
`
};
const CommLink = new CommLinkHandler(`frontend_${commLinkInstanceID}`, {
'singlePacketResponseWaitTime': 1500,
'maxSendAttempts': 3,
'statusCheckInterval': 1,
'silentMode': true
});
// manually register a command so that the variables are dynamic
CommLink.commands['createInstance'] = async () => {
return await CommLink.send('mum', 'createInstance', {
'domain': domain,
'instanceID': commLinkInstanceID,
'chessVariant': getChessVariant(),
'playerColor': getPlayerColorVariable()
});
}
CommLink.registerSendCommand('ping', { commlinkID: 'mum', data: 'ping' });
CommLink.registerSendCommand('pingInstance', { data: 'ping' });
CommLink.registerSendCommand('log');
CommLink.registerSendCommand('updateBoardOrientation');
CommLink.registerSendCommand('updateBoardFen');
CommLink.registerSendCommand('calculateBestMoves');
CommLink.registerListener(`backend_${commLinkInstanceID}`, packet => {
try {
switch(packet.command) {
case 'ping':
return `pong (took ${Date.now() - packet.date}ms)`;
case 'getFen':
return getFen();
case 'removeSiteMoveMarkings':
boardUtils.removeBestMarkings();
return true;
case 'markMoveToSite':
boardUtils.markMove(packet.data);
return true;
}
} catch(e) {
return null;
}
});
function filterInvisibleElems(elementArr, inverse) {
return [...elementArr].filter(elem => {
const style = getComputedStyle(elem);
const bounds = elem.getBoundingClientRect();
const isHidden =
style.visibility === 'hidden' ||
style.display === 'none' ||
style.opacity === '0' ||
bounds.width == 0 ||
bounds.height == 0;
return inverse ? isHidden : !isHidden;
});
}
function getElementSize(elem) {
const rect = elem.getBoundingClientRect();
if(rect.width !== 0 && rect.height !== 0) {
return { width: rect.width, height: rect.height };
}
const computedStyle = window.getComputedStyle(elem);
const width = parseFloat(computedStyle.width);
const height = parseFloat(computedStyle.height);
return { width, height };
}
function extractElemTransformData(elem) {
const computedStyle = window.getComputedStyle(elem);
const transformMatrix = new DOMMatrix(computedStyle.transform);
const x = transformMatrix.e;
const y = transformMatrix.f;
return [x, y];
}
function getElemCoordinatesFromTransform(elem) {
if (!lastBoardSize) {
lastBoardSize = getElementSize(chessBoardElem);
}
if (!lastBoardRanks) {
const [files, ranks] = getBoardDimensions();
lastBoardRanks = ranks;
lastBoardFiles = files;
}
const boardOrientation = getPlayerColorVariable();
const [x, y] = extractElemTransformData(elem);
const boardDimensions = lastBoardSize;
const squareDimensions = boardDimensions.width / lastBoardRanks;
const normalizedX = Math.round(x / squareDimensions);
const normalizedY = Math.round(y / squareDimensions);
if (boardOrientation === 'w') {
const flippedY = lastBoardFiles - normalizedY - 1;
return [normalizedX, flippedY];
} else {
const flippedX = lastBoardRanks - normalizedX - 1;
return [flippedX, normalizedY];
}
}
function createChesscomVariantBoardCoordsTable() {
chesscomVariantBoardCoordsTable = {};
const boardElem = getBoardElem();
const [boardWidth, boardHeight] = getBoardDimensions();
const boardOrientation = getBoardOrientation();
const squareElems = getSquareElems(boardElem);
let squareIndex = 0;
for(let x = 0; x < boardWidth; x++) {
for(let y = boardHeight; y > 0; y--) {
const squareElem = squareElems[squareIndex];
const id = squareElem?.id;
const xIdx = x;
const yIdx = y - 1;
if(id) {
chesscomVariantBoardCoordsTable[id] = [xIdx, yIdx];
}
squareIndex++;
}
}
}
function chessCoordinatesToIndex(coord) {
const x = coord.charCodeAt(0) - 97;
let y = null;
const lastHalf = coord.slice(1);
if(lastHalf === ':') {
y = 9;
} else {
y = Number(coord.slice(1)) - 1;
}
return [x, y];
}
function getGmConfigValue(key, instanceID) {
const config = GM_getValue(dbValues.AcasConfig);
const instanceValue = config?.instance?.[instanceID]?.[key];
const globalValue = config?.global?.[key];
if(instanceValue !== undefined) {
return instanceValue;
}
if(globalValue !== undefined) {
return globalValue;
}
return null;
}
function getConfigValue(key) {
return config[key]?.get();
}
function setConfigValue(key, val) {
return config[key]?.set(val);
}
function squeezeEmptySquares(fenStr) {
return fenStr.replace(/1+/g, match => match.length);
}
function getPlayerColorVariable() {
return instanceVars.playerColor.get(commLinkInstanceID);
}
function getFenPieceColor(pieceFenStr) {
return pieceFenStr == pieceFenStr.toUpperCase() ? 'w' : 'b';
}
function getFenPieceOppositeColor(pieceFenStr) {
return getFenPieceColor(pieceFenStr) == 'w' ? 'b' : 'w';
}
function convertPieceStrToFen(str) {
if(!str || str.length !== 2) {
return null;
}
const firstChar = str[0].toLowerCase();
const secondChar = str[1];
if(firstChar === 'w') {
return secondChar.toUpperCase();
} else if (firstChar === 'b') {
return secondChar.toLowerCase();
}
return null;
}
function getBoardElem() {
const pathname = window.location.pathname;
switch(domain) {
case 'chess.com': {
if(pathname?.includes('/variants')) {
return document.querySelector('#board');
}
return document.querySelector('chess-board');
}
case 'lichess.org': {
return document.querySelector('cg-board');
}
case 'playstrategy.org': {
return document.querySelector('cg-board');
}
case 'pychess.org': {
return document.querySelector('cg-board');
}
case 'chess.org': {
return document.querySelector('.cg-board');
}
case 'papergames.io': {
return document.querySelector('#chessboard');
}
case 'vole.wtf': {
return document.querySelector('#board');
}
}
return null;
}
function getChessPieceElem(getAll) {
const pathname = window.location.pathname;
const boardElem = getBoardElem();
const querySelector = (getAll ? query => [...boardElem?.querySelectorAll(query)] : boardElem?.querySelector?.bind(boardElem));
switch(domain) {
case 'chess.com': {
if(pathname?.includes('/variants')) {
const filteredPieceElems = filterInvisibleElems(document.querySelectorAll('#board *[data-piece]'))
.filter(elem => Number(elem?.dataset?.player) <= 2);
return getAll ? filteredPieceElems : filteredPieceElems[0];
}
return querySelector('.piece');
}
case 'lichess.org': {
return querySelector('piece:not(.ghost)');
}
case 'playstrategy.org': {
return querySelector('piece[class*="-piece"]:not(.ghost)');
}
case 'pychess.org': {
return querySelector('piece[class*="-piece"]:not(.ghost)');
}
case 'chess.org': {
return querySelector('piece:not(.ghost)');
}
case 'papergames.io': {
return querySelector('*[data-piece][data-square]');
}
case 'vole.wtf': {
return querySelector('*[data-t][data-l][data-p]:not([data-p="0"]');
}
}
return null;
}
function getSquareElems(element) {
const pathname = window.location.pathname;
switch(domain) {
case 'chess.com': {
if(pathname?.includes('/variants')) {
return [...element.querySelectorAll('.square-4pc.ui-droppable')]
.filter(elem => {
const pieceElem = elem.querySelector('[data-player]');
const playerNum = Number(pieceElem?.dataset?.player);
return (!playerNum || playerNum <= 2);
});
}
break;
}
}
return null;
}
function isMutationNewMove(mutationArr) {
const pathname = window.location.pathname;
switch(domain) {
case 'chess.com': {
if(pathname?.includes('/variants')) {
return mutationArr.find(m => m.attributeName == 'class') ? true : false;
}
if(mutationArr.length == 1)
return false;
const modifiedHoverSquare = mutationArr.find(m => m?.target?.classList?.contains('hover-square')) ? true : false;
const modifiedHighlight = mutationArr.find(m => m?.target?.classList?.contains('highlight')) ? true : false;
const modifiedElemPool = mutationArr.find(m => m?.target?.classList?.contains('element-pool')) ? true : false;
return (mutationArr.length >= 4 && !modifiedHoverSquare)
|| mutationArr.length >= 7
|| modifiedHighlight
|| modifiedElemPool;
}
case 'lichess.org': {
return mutationArr.length >= 4
|| mutationArr.find(m => m.type === 'childList') ? true : false
|| mutationArr.find(m => m?.target?.classList?.contains('last-move')) ? true : false;
}
case 'playstrategy.org': {
return mutationArr.length >= 4
|| mutationArr.find(m => m.type === 'childList') ? true : false
|| mutationArr.find(m => m?.target?.classList?.contains('last-move')) ? true : false;
}
case 'pychess.org': {
return mutationArr.length >= 4
|| mutationArr.find(m => m.type === 'childList') ? true : false
|| mutationArr.find(m => m?.target?.classList?.contains('last-move')) ? true : false;
}
case 'chess.org': {
return mutationArr.length >= 4
|| mutationArr.find(m => m.type === 'childList') ? true : false
|| mutationArr.find(m => m?.target?.classList?.contains('last-move')) ? true : false;
}
case 'papergames.io': {
return mutationArr.length >= 12;
}
case 'vole.wtf': {
return mutationArr.length >= 12;
}
}
return false;
}
function getChessVariant() {
const pathname = window.location.pathname;
switch(domain) {
case 'chess.com': {
if(pathname?.includes('/variants')) {
const variant = pathname.match(/variants\/([^\/]*)/)?.[1]
.replaceAll('-chess', '')
.replaceAll('-', '');
const replacementTable = {
'doubles-bughouse': 'bughouse',
'paradigm-chess30': 'paradigm'
};
return replacementTable[variant] || variant;
}
break;
}
case 'lichess.org': {
const variantLinkElem = document.querySelector('.variant-link');
if(variantLinkElem) {
let variant = variantLinkElem?.innerText?.toLowerCase()?.replaceAll(' ', '-');
const replacementTable = {
'correspondence': 'chess',
'koth': 'kingofthehill',
'three-check': '3check'
};
return replacementTable[variant] || variant;
}
break;
}
case 'playstrategy.org': {
const variantLinkElem = document.querySelector('.variant-link');
if(variantLinkElem) {
let variant = variantLinkElem?.innerText
?.toLowerCase()
?.replaceAll(' ', '-');
const replacementTable = {
'correspondence': 'chess',
'koth': 'kingofthehill',
'three-check': '3check',
'five-check': '5check',
'no-castling': 'nocastle'
};
return replacementTable[variant] || variant;
}
break;
}
case 'pychess.org': {
const variantLinkElem = document.querySelector('#main-wrap .tc .user-link');
if(variantLinkElem) {
let variant = variantLinkElem?.innerText
?.toLowerCase()
?.replaceAll(' ', '')
?.replaceAll('-', '');
const replacementTable = {
'correspondence': 'chess',
'koth': 'kingofthehill',
'nocastling': 'nocastle',
'gorogoro+': 'gorogoro',
'oukchaktrang': 'cambodian'
};
return replacementTable[variant] || variant;
}
break;
}
case 'chess.org': {
const variantNum = unsafeWindow?.GameConfig?.instance?.variant;
let variant = GameConfig?.VARIANT_NAMES?.[variantNum]?.toLowerCase();
if(variant) {
const replacementTable = {
'standard': 'chess'
};
return replacementTable[variant] || variant;
}
break;
}
case 'papergames.io': {
return 'chess';
}
case 'vole.wtf': {
return 'chess';
}
}
return 'chess';
}
function getBoardOrientation() {
const pathname = window.location.pathname;
switch(domain) {
case 'chess.com': {
if(pathname?.includes('/variants')) {
const playerNumberStr = document.querySelector('.playerbox-bottom [data-player]')?.dataset?.player;
return playerNumberStr == '0' ? 'w' : 'b';
}
const boardElem = getBoardElem();
return boardElem?.classList.contains('flipped') ? 'b' : 'w';
}
case 'lichess.org': {
const filesElem = document.querySelector('coords.files');
return filesElem?.classList?.contains('black') ? 'b' : 'w';
}
case 'playstrategy.org': {
const cgWrapElem = document.querySelector('.cg-wrap');
return cgWrapElem.classList?.contains('orientation-p1') ? 'w' : 'b';
}
case 'pychess.org': {
const cgWrapElem = document.querySelector('.cg-wrap');
return cgWrapElem.classList?.contains('orientation-black') ? 'b' : 'w';
}
case 'chess.org': {
const filesElem = document.querySelector('coords.files');
return filesElem?.classList?.contains('black') ? 'b' : 'w';
}
case 'papergames.io': {
const boardElem = getBoardElem();
if(boardElem) {
const firstRankText = [...boardElem.querySelector('.coordinates').childNodes]?.[0].textContent;
return firstRankText == 'h' ? 'b' : 'w';
}
}
case 'vole.wtf': {
return 'w';
}
}
return null;
}
function getPieceElemFen(pieceElem) {
const pathname = window.location.pathname;
const pieceNameToFen = {
'pawn': 'p',
'knight': 'n',
'bishop': 'b',
'rook': 'r',
'queen': 'q',
'king': 'k'
};
switch(domain) {
case 'chess.com': {
let pieceColor = null;
let pieceName = null;
if(pathname?.includes('/variants')) {
pieceColor = pieceElem?.dataset?.player == '0' ? 'w' : 'b';
pieceName = pieceElem?.dataset?.piece;
} else {
const pieceStr = [...pieceElem.classList].find(x => x.match(/^(b|w)[prnbqk]{1}$/));
[pieceColor, pieceName] = pieceStr.split('');
}
return pieceColor == 'w' ? pieceName.toUpperCase() : pieceName.toLowerCase();
}
case 'lichess.org': {
const pieceColor = pieceElem?.classList?.contains('white') ? 'w' : 'b';
const elemPieceName = [...pieceElem?.classList]?.find(className => Object.keys(pieceNameToFen).includes(className));
if(pieceColor && elemPieceName) {
const pieceName = pieceNameToFen[elemPieceName];
return pieceColor == 'w' ? pieceName.toUpperCase() : pieceName.toLowerCase();
}
break;
}
case 'playstrategy.org': {
const playerColor = getPlayerColorVariable();
const pieceColor = pieceElem?.classList?.contains('ally') ? playerColor : (playerColor == 'w' ? 'b' : 'w');
let pieceName = null;
[...pieceElem?.classList]?.forEach(className => {
if(className?.includes('-piece')) {
const elemPieceName = className?.split('-piece')?.[0];
if(elemPieceName && elemPieceName?.length === 1) {
pieceName = elemPieceName;
}
}
});
if(pieceColor && pieceName) {
return pieceColor == 'w' ? pieceName.toUpperCase() : pieceName.toLowerCase();
}
break;
}
case 'pychess.org': {
const playerColor = getPlayerColorVariable();
const pieceColor = pieceElem?.classList?.contains('ally') ? playerColor : (playerColor == 'w' ? 'b' : 'w');
let pieceName = null;
[...pieceElem?.classList]?.forEach(className => {
if(className?.includes('-piece')) {
const elemPieceName = className?.split('-piece')?.[0];
if(elemPieceName && elemPieceName?.length === 1) {
pieceName = elemPieceName;
}
}
});
if(pieceColor && pieceName) {
return pieceColor == 'w' ? pieceName.toUpperCase() : pieceName.toLowerCase();
}
break;
}
case 'chess.org': {
const pieceColor = pieceElem?.classList?.contains('white') ? 'w' : 'b';
const elemPieceName = [...pieceElem?.classList]?.find(className => Object.keys(pieceNameToFen).includes(className));
if(pieceColor && elemPieceName) {
const pieceName = pieceNameToFen[elemPieceName];
return pieceColor == 'w' ? pieceName.toUpperCase() : pieceName.toLowerCase();
}
break;
}
case 'papergames.io': {
return convertPieceStrToFen(pieceElem?.dataset?.piece);
}
case 'vole.wtf': {
const pieceNum = Number(pieceElem?.dataset?.p);
const pieceFenStr = 'pknbrq';
if(pieceNum > 8) {
return pieceFenStr[pieceNum - 9].toUpperCase();
} else {
return pieceFenStr[pieceNum - 1];
}
}
}
return null;
}
// this function gets called a lot, needs to be optimized
function getPieceElemCoords(pieceElem) {
const pathname = window.location.pathname;
switch(domain) {
case 'chess.com': {
if(pathname?.includes('/variants')) {
const squareElem = pieceElem.parentElement;
const squareId = squareElem.id;
if(!chesscomVariantBoardCoordsTable) {
createChesscomVariantBoardCoordsTable();
}
return chesscomVariantBoardCoordsTable[squareId];
}
return pieceElem.classList.toString()
?.match(/square-(\d)(\d)/)
?.slice(1)
?.map(x => Number(x) - 1);
}
case 'lichess.org': {
const key = pieceElem?.cgKey;
if(!key) break;
return chessCoordinatesToIndex(key);
}
case 'playstrategy.org': {
const key = pieceElem?.cgKey;
if(!key) break;
return chessCoordinatesToIndex(key);
}
case 'pychess.org': {
const key = pieceElem?.cgKey;
if(!key) break;
return chessCoordinatesToIndex(key);
}
case 'chess.org': {
return getElemCoordinatesFromTransform(pieceElem);
}
case 'papergames.io': {
const key = pieceElem?.dataset?.square;
if(!key) break;
return chessCoordinatesToIndex(key);
}
case 'vole.wtf': {
return [Number(pieceElem?.dataset?.l), 7 - Number(pieceElem?.dataset?.t)];
}
}
return null;
}
function getBoardDimensions() {
const pathname = window.location.pathname;
switch(domain) {
case 'chess.com': {
if(pathname?.includes('/variants')) {
const rankElems = chessBoardElem?.querySelectorAll('.rank');
const visibleRankElems = filterInvisibleElems(rankElems)
.filter(rankElem => [...rankElem.childNodes]
.find(elem => {
const pieceElem = elem.querySelector('[data-player]');
const playerNum = Number(pieceElem?.dataset?.player);
return playerNum <= 2;
}));
if(visibleRankElems.length) {
const rankElem = visibleRankElems[0];
const squareElems = getSquareElems(rankElem);
const ranks = visibleRankElems?.length;
const files = squareElems?.length;
return [ranks, files];
}
}
break;
}
default: {
if(domainsWithoutDifferentBoardDimensionsArr?.includes(domain)) break;
const boardDimensions = getElementSize(chessBoardElem);
lastBoardSize = getElementSize(chessBoardElem);
const boardWidth = boardDimensions?.width;
const boardHeight = boardDimensions.height;
const boardPiece = getChessPieceElem();
if(boardPiece) {
const pieceDimensions = getElementSize(boardPiece);
lastPieceSize = getElementSize(boardPiece);
const boardPieceWidth = pieceDimensions?.width;
const boardPieceHeight = pieceDimensions?.height;
const boardRanks = Math.floor(boardWidth / boardPieceWidth);
const boardFiles = Math.floor(boardHeight / boardPieceHeight);
const ranksInAllowedRange = 0 < boardRanks && boardRanks <= 69;
const filesInAllowedRange = 0 < boardFiles && boardFiles <= 69;
if(ranksInAllowedRange && filesInAllowedRange) {
lastBoardRanks = boardRanks;
lastBoardFiles = boardFiles;
return [boardRanks, boardFiles];
}
}
break;
}
}
lastBoardRanks = 8;
lastBoardFiles = 8;
return [8, 8];
}
function getFen(onlyBasic) {
const [boardRanks, boardFiles] = getBoardDimensions();
if(debugModeActivated) console.warn('getFen()', 'onlyBasic:', onlyBasic, 'Ranks:', boardRanks, 'Files:', boardFiles);
const board = Array.from({ length: boardFiles }, () => Array(boardRanks).fill(1));
function getBasicFen() {
const pieceElems = getChessPieceElem(true);
const isValidPieceElemsArray = Array.isArray(pieceElems) || pieceElems instanceof NodeList;
if(isValidPieceElemsArray) {
pieceElems.forEach(pieceElem => {
const pieceFenCode = getPieceElemFen(pieceElem);
const pieceCoordsArr = getPieceElemCoords(pieceElem);
if(debugModeActivated) console.warn('pieceElem', pieceElem, 'pieceFenCode', pieceFenCode, 'pieceCoordsArr', pieceCoordsArr);
try {
const [xIdx, yIdx] = pieceCoordsArr;
board[boardFiles - (yIdx + 1)][xIdx] = pieceFenCode;
} catch(e) {
if(debugModeActivated) console.error(e);
}
});
}
return squeezeEmptySquares(board.map(x => x.join('')).join('/'));
}
const basicFen = getBasicFen();
if(onlyBasic) {
return basicFen;
}
return `${basicFen} ${getPlayerColorVariable()} - - - -`;
}
const boardUtils = {
markMove: moveObj => {
if(!getConfigValue(configKeys.displayMovesOnExternalSite)) return;
const [from, to] = moveObj.player;
const [opponentFrom, opponentTo] = moveObj.opponent;
const ranking = moveObj.ranking;
const existingExactSameMoveObj = activeSiteMoveHighlights.find(obj => {
const [activeFrom, activeTo] = obj.player;
const [activeOpponentFrom, activeOpponentTo] = obj.opponent;
return from == activeFrom
&& to == activeTo
&& opponentFrom == activeOpponentFrom
&& opponentTo == activeOpponentTo;
});
activeSiteMoveHighlights.map(obj => {
const [activeFrom, activeTo] = obj.player;
const existingSameMoveObj = from == activeFrom && to == activeTo;
if(existingSameMoveObj) {
obj.promotedRanking = 1;
}
return obj;
});
const exactSameMoveDoesNotExist = typeof existingExactSameMoveObj !== 'object';
if(exactSameMoveDoesNotExist) {
const showOpponentMoveGuess = getConfigValue(configKeys.showOpponentMoveGuess);
const opponentMoveGuessExists = typeof opponentFrom == 'string';
const arrowStyle = ranking == 1 ? arrowStyles.best : arrowStyles.secondary;
let opponentArrowElem = null;
// create player move arrow element
const arrowElem = BoardDrawer.createShape('arrow', [from, to],
{ style: arrowStyle }
);
// create opponent move arrow element
if(opponentMoveGuessExists && showOpponentMoveGuess) {
opponentArrowElem = BoardDrawer.createShape('arrow', [opponentFrom, opponentTo],
{ style: arrowStyles.opponent }
);
const squareListener = BoardDrawer.addSquareListener(from, type => {
if(!opponentArrowElem) {
squareListener.remove();
}
switch(type) {
case 'enter':
opponentArrowElem.style.display = 'inherit';
break;
case 'leave':
opponentArrowElem.style.display = 'none';
break;
}
});
}
activeSiteMoveHighlights.push({
...moveObj,
'opponentArrowElem': opponentArrowElem,
'playerArrowElem': arrowElem
});
}
boardUtils.removeOldMarkings();
boardUtils.paintMarkings();
},
removeOldMarkings: () => {
const markingLimit = getConfigValue(configKeys.moveSuggestionAmount);
const showGhost = getConfigValue(configKeys.showMoveGhost);
const exceededMarkingLimit = activeSiteMoveHighlights.length > markingLimit;
if(exceededMarkingLimit) {
const amountToRemove = activeSiteMoveHighlights.length - markingLimit;
for(let i = 0; i < amountToRemove; i++) {
const oldestMarkingObj = activeSiteMoveHighlights[0];
activeSiteMoveHighlights = activeSiteMoveHighlights.slice(1);
if(oldestMarkingObj?.playerArrowElem?.style) {
oldestMarkingObj.playerArrowElem.style.fill = 'grey';
oldestMarkingObj.playerArrowElem.style.opacity = '0';
oldestMarkingObj.playerArrowElem.style.transition = 'opacity 2.5s ease-in-out';
}
if(oldestMarkingObj?.opponentArrowElem?.style) {
oldestMarkingObj.opponentArrowElem.style.fill = 'grey';
oldestMarkingObj.opponentArrowElem.style.opacity = '0';
oldestMarkingObj.opponentArrowElem.style.transition = 'opacity 2.5s ease-in-out';
}
if(showGhost) {
inactiveGuiMoveMarkings.push(oldestMarkingObj);
} else {
oldestMarkingObj.playerArrowElem?.remove();
oldestMarkingObj.opponentArrowElem?.remove();
}
}
}
if(showGhost) {
inactiveGuiMoveMarkings.forEach(markingObj => {
const activeDuplicateArrow = activeSiteMoveHighlights.find(x => {
const samePlayerArrow = x.player?.toString() == markingObj.player?.toString();
const sameOpponentArrow = x.opponent?.toString() == markingObj.opponent?.toString();
return samePlayerArrow && sameOpponentArrow;
});
const duplicateExists = activeDuplicateArrow ? true : false;
const removeArrows = () => {
inactiveGuiMoveMarkings = inactiveGuiMoveMarkings.filter(x => x.playerArrowElem != markingObj.playerArrowElem);
markingObj.playerArrowElem?.remove();
markingObj.opponentArrowElem?.remove();
}
if(duplicateExists) {
removeArrows();
} else {
setTimeout(removeArrows, 2500);
}
});
}
},
paintMarkings: () => {
const newestBestMarkingIndex = activeSiteMoveHighlights.findLastIndex(obj => obj.ranking == 1);
const newestPromotedBestMarkingIndex = activeSiteMoveHighlights.findLastIndex(obj => obj?.promotedRanking == 1);
const lastMarkingIndex = activeSiteMoveHighlights.length - 1;
const isLastMarkingBest = newestBestMarkingIndex == -1 && newestPromotedBestMarkingIndex == -1;
const bestIndex = isLastMarkingBest ? lastMarkingIndex : Math.max(...[newestBestMarkingIndex, newestPromotedBestMarkingIndex]);
let bestMoveMarked = false;
activeSiteMoveHighlights.forEach((markingObj, idx) => {
const isBestMarking = idx == bestIndex;
if(isBestMarking) {
markingObj.playerArrowElem.style.cssText = arrowStyles.best;
const playerArrowElem = markingObj.playerArrowElem
const opponentArrowElem = markingObj.opponentArrowElem;
// move best arrow element on top (multiple same moves can hide the best move)
const parentElem = markingObj.playerArrowElem.parentElement;
parentElem.appendChild(playerArrowElem);
if(opponentArrowElem) {
parentElem.appendChild(opponentArrowElem);
}
bestMoveMarked = true;
} else {
markingObj.playerArrowElem.style.cssText = arrowStyles.secondary;
}
});
},
removeBestMarkings: () => {
activeSiteMoveHighlights.forEach(markingObj => {
markingObj.opponentArrowElem?.remove();
markingObj.playerArrowElem?.remove();
});
activeSiteMoveHighlights = [];
},
setBoardOrientation: orientation => {
if(BoardDrawer) {
if(debugModeActivated) console.warn('setBoardOrientation', orientation);
BoardDrawer.setOrientation(orientation);
}
},
setBoardDimensions: dimensionArr => {
if(BoardDrawer) {
if(debugModeActivated) console.warn('setBoardDimensions', dimensionArr);
BoardDrawer.setBoardDimensions(dimensionArr);
}
}
};
function onNewMove(mutationArr) {
if(debugModeActivated) console.warn('NEW MOVE DETECTED!');
chesscomVariantBoardCoordsTable = null;
boardUtils.setBoardDimensions(getBoardDimensions());
const lastPlayerColor = getPlayerColorVariable();
updatePlayerColor();
const playerColor = getPlayerColorVariable();
const orientationChanged = playerColor != lastPlayerColor;
if(orientationChanged) {
CommLink.commands.log(`Player color (e.g. board orientation) changed from ${lastPlayerColor} to ${playerColor}!`);
chesscomVariantBoardCoordsTable = null;
instanceVars.turn.set(commLinkInstanceID, playerColor);
CommLink.commands.log(`Turn updated to ${playerColor}!`);
}
const currentFullFen = getFen();
const currentBasicFen = currentFullFen?.split(' ')?.[0];
const fenChanged = currentBasicFen != lastBasicFen;
if(fenChanged) {
lastBasicFen = currentBasicFen;
boardUtils.removeBestMarkings();
/*
if(!orientationChanged) {
const allChessPieceElems = getChessPieceElem(true);
const attributeMutationArr = mutationArr.filter(m => allChessPieceElems.includes(m.target));
const movedChessPieceElem = attributeMutationArr?.[0]?.target; // doesn't work for chess.com variants
if(movedChessPieceElem) {
const newTurn = getFenPieceOppositeColor(getPieceElemFen(movedChessPieceElem));
if(newTurn?.length === 1) {
instanceVars.turn.set(commLinkInstanceID, newTurn);
CommLink.commands.log(`Turn updated to ${newTurn}!`);
}
}
}
*/
instanceVars.fen.set(commLinkInstanceID, currentFullFen);
CommLink.commands.updateBoardFen(currentFullFen);
CommLink.commands.calculateBestMoves(currentFullFen);
}
}
function observeNewMoves() {
let lastProcessedFen = null;
const boardObserver = new MutationObserver(mutationArr => {
if(debugModeActivated) console.log(mutationArr);
if(isMutationNewMove(mutationArr))
{
if(debugModeActivated) console.warn('Mutation is a new move:', mutationArr);
if(domain === 'chess.org')
{
setTimeout(() => onNewMove(mutationArr), 250);
}
else
{
onNewMove(mutationArr);
}
}
});
boardObserver.observe(chessBoardElem, { childList: true, subtree: true, attributes: true });
}
async function updatePlayerColor() {
const boardOrientation = getBoardOrientation();
const boardOrientationChanged = lastBoardOrientation !== boardOrientation;
const boardOrientationDiffers = BoardDrawer && BoardDrawer?.orientation !== boardOrientation;
if(boardOrientationChanged || boardOrientationDiffers) {
lastBoardOrientation = boardOrientation;
instanceVars.playerColor.set(commLinkInstanceID, boardOrientation);
instanceVars.turn.set(commLinkInstanceID, boardOrientation);
boardUtils.setBoardOrientation(boardOrientation);
await CommLink.commands.updateBoardOrientation(boardOrientation);
}
}
async function isAcasBackendReady() {
const res = await CommLink.commands.ping();
return res ? true : false;
}
async function start() {
await CommLink.commands.createInstance(commLinkInstanceID);
const pathname = window.location.pathname;
const adjustSizeByDimensions = domain === 'chess.com' && pathname?.includes('/variants');
const boardOrientation = getBoardOrientation();
instanceVars.playerColor.set(commLinkInstanceID, boardOrientation);
instanceVars.turn.set(commLinkInstanceID, boardOrientation);
instanceVars.fen.set(commLinkInstanceID, getFen());
if(getConfigValue(configKeys.displayMovesOnExternalSite)) {
BoardDrawer = new UniversalBoardDrawer(chessBoardElem, {
'window': window,
'boardDimensions': getBoardDimensions(),
'playerColor': getPlayerColorVariable(),
'zIndex': 500,
'prepend': true,
'debugMode': debugModeActivated,
'adjustSizeByDimensions': adjustSizeByDimensions ? true : false,
'adjustSizeConfig': {
'noLeftAdjustment': true
}
});
}
await updatePlayerColor();
observeNewMoves();
CommLink.setIntervalAsync(async () => {
await CommLink.commands.createInstance(commLinkInstanceID);
}, 1000);
}
function startWhenBackendReady() {
const interval = CommLink.setIntervalAsync(async () => {
if(await isAcasBackendReady()) {
start();
interval.stop();
} else {
GM_openInTab(backendURL, true);
if(await isAcasBackendReady()) {
start();
interval.stop();
}
}
}, 1000);
}
function initializeIfSiteReady() {
const boardElem = getBoardElem();
const firstPieceElem = getChessPieceElem();
const bothElemsExist = boardElem && firstPieceElem;
const boardElemChanged = chessBoardElem != boardElem;
if(bothElemsExist && boardElemChanged) {
chessBoardElem = boardElem;
if(!blacklistedURLs.includes(window.location.href)) {
startWhenBackendReady();
}
}
}
if(typeof GM_registerMenuCommand == 'function') {
GM_registerMenuCommand('Open A.C.A.S', e => {
if(chessBoardElem) {
startWhenBackendReady();
}
}, 's');
}
setInterval(initializeIfSiteReady, 1000);
