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C.A.S (Chess.com Assistance System)

Chess analysis bot made for educational purposes only (Chrome + Firefox + Edge ...)

当前为 2023-02-26 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name        C.A.S (Chess.com Assistance System)
  3. // @namespace   sayfpack
  4. // @author      sayfpack
  5. // @version     4.5
  6. // @homepageURL https://github.com/sayfpack13/chess-analysis-bot
  7. // @supportURL  https://mmgc.life/
  8. // @match       https://www.chess.com/*
  9. // @grant       GM_getValue
  10. // @grant       GM_setValue
  11. // @grant       GM_xmlhttpRequest
  12. // @grant       GM_getResourceText
  13. // @grant       GM_registerMenuCommand
  14. // @description Chess analysis bot made for educational purposes only (Chrome + Firefox + Edge ...)
  15. // @require     https://greasyfork.org/scripts/460400-usergui-js/code/userguijs.js?version=1152084
  16. // @resource    jquery.js       https://cdn.jsdelivr.net/npm/jquery@3.6.3/dist/jquery.min.js
  17. // @resource    chessboard.js   https://raw.githubusercontent.com/sayfpack13/chess-analysis-bot/main/tampermonkey%20script/content/chessboard.js
  18. // @resource    chessboard.css  https://raw.githubusercontent.com/sayfpack13/chess-analysis-bot/main/tampermonkey%20script/content/chessboard.css
  19. // @resource    lozza.js        https://raw.githubusercontent.com/sayfpack13/chess-analysis-bot/main/tampermonkey%20script/content/lozza.js
  20. // @resource    stockfish.js    https://github.com/exoticorn/stockfish-js/releases/download/sf_5_js/stockfish.js
  21. // @resource    stockfish2.js   https://github.com/lichess-org/stockfish.js/releases/download/ddugovic-250718/stockfish.js
  22. // @run-at      document-start
  23. // @inject-into content
  24. // ==/UserScript==
  25.  
  26. /*
  27.   e88~-_            e           ,d88~~\
  28.  d888   \          d8b          8888
  29.  8888             /Y88b         `Y88b
  30.  8888            /  Y88b         `Y88b,
  31.  Y888   / d88b  /____Y88b  d88b    8888
  32.   "88_-~  Y88P /      Y88b Y88P \__88P'
  33. */
  34.  
  35. // VARS
  36. const repositoryRawURL = 'https://raw.githubusercontent.com/sayfpack13/chess-analysis-bot/main/tampermonkey%20script';
  37. const LICHESS_API = "https://lichess.org/api/cloud-eval";
  38.  
  39. const MAX_DEPTH = 20;
  40. const MIN_DEPTH = 1;
  41. const MAX_MOVETIME = 2000;
  42. const MIN_MOVETIME = 50;
  43. const MAX_ELO = 3500;
  44. const DEPTH_MODE = 0;
  45. const MOVETIME_MODE = 1;
  46.  
  47.  
  48.  
  49. let engineMode = 0;                                         // engine mode (0:depth / 1:movetime)
  50. let engineIndex = 0;                                        // engine index (lozza => 0, stockfish => 1...)
  51. let reload_every = 10;                                      // reload engine after x moves
  52. let enableUserLog = true;                                   // enable engine log
  53. let displayMovesOnSite = false;                             // display moves on chess board
  54. let show_opposite_moves = false;                            // show opponent best moves if available
  55. let use_book_moves = false;                                 // use lichess api to get book moves
  56. let node_engine_url = "http://localhost:5000";    // node server api url
  57. let node_engine_name = "stockfish-15.exe"                        // default engine name (node server engine only)
  58.  
  59.  
  60.  
  61. let current_depth = Math.round(MAX_DEPTH / 2);
  62. let current_movetime = Math.round(MAX_MOVETIME / 2);
  63. let node_engine_id = [3];
  64.  
  65. let Gui;
  66. let closedGui = false;
  67. let reload_count = 1;
  68.  
  69. const rank = ["Beginner", "Intermediate", "Advanced", "Expert", "Master"];
  70.  
  71. const dbValues = {
  72.     openGuiAutomatically: 'openGuiAutomatically',
  73.     subtleMode: 'subtleMode',
  74.     subtletiness: 'subtletiness'
  75. };
  76.  
  77.  
  78.  
  79.  
  80. let Interface = null;
  81. let LozzaUtils = null;
  82.  
  83. let initialized = false;
  84. let firstMoveMade = false;
  85.  
  86.  
  87. let engine = null;
  88. let engineObjectURL = null;
  89. let lastEngine = engineIndex;
  90.  
  91. let chessBoardElem = null;
  92. let turn = '-';
  93. let playerColor = null;
  94. let isPlayerTurn = null;
  95. let lastFen = null;
  96.  
  97. let uiChessBoard = null;
  98.  
  99. let activeGuiMoveHighlights = [];
  100. let activeSiteMoveHighlights = [];
  101.  
  102. let engineLogNum = 1;
  103. let userscriptLogNum = 1;
  104. let enemyScore = 0;
  105. let myScore = 0;
  106.  
  107.  
  108. function moveResult(givenFen = "", from, to, power, clear = true) {
  109.     // make sure both fens are equal
  110.     // because engine requests/results are async
  111.  
  112.     if (givenFen != "" && givenFen != currentFen) {
  113.         return;
  114.     }
  115.  
  116.  
  117.     if (from.length < 2 || to.length < 2) {
  118.         return;
  119.     }
  120.  
  121.     if (clear) {
  122.         removeSiteMoveMarkings();
  123.         Interface.boardUtils.removeBestMarkings();
  124.     }
  125.  
  126.  
  127.  
  128.     if (isPlayerTurn) // my turn
  129.         myScore = myScore + Number(power);
  130.     else
  131.         enemyScore = enemyScore + Number(power);
  132.  
  133.     Interface.boardUtils.updateBoardPower(myScore, enemyScore);
  134.  
  135.     if (displayMovesOnSite || (!isPlayerTurn && show_opposite_moves)) {
  136.         markMoveToSite(from, to);
  137.     }
  138.  
  139.  
  140.  
  141.     Interface.boardUtils.markMove(from, to);
  142.     Interface.stopBestMoveProcessingAnimation();
  143.  
  144.  
  145. }
  146.  
  147.  
  148. function getBookMoves(turn) {
  149.     GM_xmlhttpRequest({
  150.         method: "GET",
  151.         url: LICHESS_API + "?fen=" + currentFen + "&multiPv=3&variant=fromPosition",
  152.         headers: {
  153.             "Content-Type": "application/json"
  154.         },
  155.         onload: function (response) {
  156.             if (response.response.includes("error")) {
  157.  
  158.                 getBestMoves(turn);
  159.  
  160.             } else {
  161.                 let data = JSON.parse(response.response);
  162.                 let nextMove = data.pvs[0].moves.split(' ')[0];
  163.                 let score = current_depth;
  164.  
  165.  
  166.                 moveResult(currentFen, nextMove.slice(0, 2), nextMove.slice(2, 4), score, true);
  167.             }
  168.  
  169.  
  170.         }, onerror: function (error) {
  171.             getBestMoves(turn);
  172.  
  173.         }
  174.     });
  175.  
  176. }
  177.  
  178. function getNodeBestMoves(turn) {
  179.  
  180.  
  181.     GM_xmlhttpRequest({
  182.         method: "GET",
  183.         url: node_engine_url + "/getBestMove?fen=" + currentFen + "&engine_mode=" + engineMode + "&depth=" + current_depth + "&movetime=" + current_movetime + "&turn=" + turn + "&engine_name=" + node_engine_name,
  184.         headers: {
  185.             "Content-Type": "application/json"
  186.         },
  187.         onload: function (response) {
  188.             if (response.response == "false") {
  189.                 return;
  190.             }
  191.             let data = JSON.parse(response.response);
  192.             let fen = data.fen;
  193.             let depth = data.depth;
  194.             let movetime = data.movetime;
  195.             let power = data.score;
  196.             let nextMove = data.move;
  197.  
  198.  
  199.             if (engineMode == DEPTH_MODE) {
  200.                 Interface.updateBestMoveProgress(`Depth: ${depth}`);
  201.             } else {
  202.                 Interface.updateBestMoveProgress(`Move time: ${movetime} ms`);
  203.             }
  204.  
  205.  
  206.  
  207.             moveResult(fen, nextMove.slice(0, 2), nextMove.slice(2, 4), power, true);
  208.  
  209.  
  210.  
  211.         }, onerror: function (error) {
  212.             console.log("check node server !!");
  213.  
  214.         }
  215.     });
  216.  
  217. }
  218.  
  219. function getElo() {
  220.     let elo;
  221.     if (engineMode == DEPTH_MODE) {
  222.         elo = MAX_ELO / MAX_DEPTH;
  223.         elo *= current_depth;
  224.     } else {
  225.         elo = MAX_ELO / MAX_MOVETIME;
  226.         elo *= current_movetime;
  227.     }
  228.     return elo;
  229. }
  230.  
  231. function getRank() {
  232.     let part;
  233.     if (engineMode == DEPTH_MODE) {
  234.         part = current_depth / (MAX_DEPTH / rank.length);
  235.     } else {
  236.         part = current_movetime / (MAX_MOVETIME / rank.length);
  237.     }
  238.     part = Math.round(part);
  239.  
  240.     if (part >= rank.length) {
  241.         part = rank.length - 1;
  242.     }
  243.  
  244.     return rank[part];
  245. }
  246.  
  247.  
  248.  
  249.  
  250.  
  251.  
  252. function getEloDescription() {
  253.     let desc = `Elo: ${getElo()}, Rank: ${getRank()}, `;
  254.     if (engineMode == DEPTH_MODE) {
  255.         desc += `Depth: ${current_depth}`;
  256.     } else {
  257.         desc += `Move Time: ${current_movetime} ms`;
  258.     }
  259.     return desc;
  260. }
  261.  
  262. function isNotCompatibleBrowser() {
  263.     return navigator.userAgent.toLowerCase().includes("firefox")
  264. }
  265.  
  266. onload = function () {
  267.     if (isNotCompatibleBrowser()) {
  268.         Gui = new UserGui;
  269.     }
  270.  
  271. }
  272.  
  273. if (!isNotCompatibleBrowser()) {
  274.     Gui = new UserGui;
  275. } else {
  276.     onload();
  277. }
  278.  
  279.  
  280. Gui.settings.window.title = 'C.A.S';
  281. Gui.settings.window.external = true;
  282. Gui.settings.window.size.width = 500;
  283. Gui.settings.gui.external.popup = false;
  284. Gui.settings.gui.external.style += GM_getResourceText('chessboard.css');
  285. Gui.settings.gui.external.style += `
  286. div[class^='board'] {
  287.     background-color: black;
  288. }
  289. .best-move-from {
  290.     background-color: #31ff7f;
  291.     transform: scale(0.85);
  292. }
  293. .best-move-to {
  294.     background-color: #31ff7f;
  295. }
  296. .negative-best-move-from {
  297.     background-color: #fd0000;
  298.     transform: scale(0.85);
  299. }
  300. .negative-best-move-to {
  301.     background-color: #fd0000;
  302. }
  303. body {
  304.     display: block;
  305.     margin-left: auto;
  306.     margin-right: auto;
  307.     width: 360px;
  308. }
  309. #fen {
  310.     margin-left: 10px;
  311. }
  312. #engine-log-container {
  313.     max-height: 35vh;
  314.     overflow: auto!important;
  315. }
  316. #userscript-log-container {
  317.     max-height: 35vh;
  318.     overflow: auto!important;
  319. }
  320. .sideways-card {
  321.     display: flex;
  322.     align-items: center;
  323.     justify-content: space-between;
  324. }
  325. .rendered-form .card {
  326.     margin-bottom: 10px;
  327. }
  328. .hidden {
  329.     display: none;
  330. }
  331. .main-title-bar {
  332.     display: flex;
  333.     justify-content: space-between;
  334. }
  335. @keyframes wiggle {
  336.     0% { transform: scale(1); }
  337.    80% { transform: scale(1); }
  338.    85% { transform: scale(1.1); }
  339.    95% { transform: scale(1); }
  340.   100% { transform: scale(1); }
  341. }
  342.  
  343. .wiggle {
  344.   display: inline-block;
  345.   animation: wiggle 1s infinite;
  346. }
  347. `;
  348.  
  349. function FenUtils() {
  350.     this.board = [
  351.         [1, 1, 1, 1, 1, 1, 1, 1],
  352.         [1, 1, 1, 1, 1, 1, 1, 1],
  353.         [1, 1, 1, 1, 1, 1, 1, 1],
  354.         [1, 1, 1, 1, 1, 1, 1, 1],
  355.         [1, 1, 1, 1, 1, 1, 1, 1],
  356.         [1, 1, 1, 1, 1, 1, 1, 1],
  357.         [1, 1, 1, 1, 1, 1, 1, 1],
  358.         [1, 1, 1, 1, 1, 1, 1, 1],
  359.     ];
  360.  
  361.     this.pieceCodeToFen = pieceStr => {
  362.         const [pieceColor, pieceName] = pieceStr.split('');
  363.  
  364.         return pieceColor == 'w' ? pieceName.toUpperCase() : pieceName.toLowerCase();
  365.     }
  366.  
  367.     this.getFenCodeFromPieceElem = pieceElem => {
  368.         return this.pieceCodeToFen([...pieceElem.classList].find(x => x.match(/^(b|w)[prnbqk]{1}$/)));
  369.     }
  370.  
  371.     this.getPieceColor = pieceFenStr => {
  372.         return pieceFenStr == pieceFenStr.toUpperCase() ? 'w' : 'b';
  373.     }
  374.  
  375.     this.getPieceOppositeColor = pieceFenStr => {
  376.         return this.getPieceColor(pieceFenStr) == 'w' ? 'b' : 'w';
  377.     }
  378.  
  379.     this.squeezeEmptySquares = fenStr => {
  380.         return fenStr.replace(/11111111/g, '8')
  381.             .replace(/1111111/g, '7')
  382.             .replace(/111111/g, '6')
  383.             .replace(/11111/g, '5')
  384.             .replace(/1111/g, '4')
  385.             .replace(/111/g, '3')
  386.             .replace(/11/g, '2');
  387.     }
  388.  
  389.     this.posToIndex = pos => {
  390.         const [x, y] = pos.split('');
  391.  
  392.         return { 'y': 8 - y, 'x': 'abcdefgh'.indexOf(x) };
  393.     }
  394.  
  395.     this.getBoardPiece = pos => {
  396.         const indexObj = this.posToIndex(pos);
  397.  
  398.         return this.board[indexObj.y][indexObj.x];
  399.     }
  400.  
  401.     this.getRights = () => {
  402.         let rights = '';
  403.  
  404.         // check for white
  405.         const e1 = this.getBoardPiece('e1'),
  406.             h1 = this.getBoardPiece('h1'),
  407.             a1 = this.getBoardPiece('a1');
  408.  
  409.         if (e1 == 'K' && h1 == 'R') rights += 'K';
  410.         if (e1 == 'K' && a1 == 'R') rights += 'Q';
  411.  
  412.         //check for black
  413.         const e8 = this.getBoardPiece('e8'),
  414.             h8 = this.getBoardPiece('h8'),
  415.             a8 = this.getBoardPiece('a8');
  416.  
  417.         if (e8 == 'k' && h8 == 'r') rights += 'k';
  418.         if (e8 == 'k' && a8 == 'r') rights += 'q';
  419.  
  420.         return rights ? rights : '-';
  421.     }
  422.  
  423.  
  424.  
  425.     this.getBasicFen = () => {
  426.         const pieceElems = [...chessBoardElem.querySelectorAll('.piece')];
  427.  
  428.         pieceElems.forEach(pieceElem => {
  429.             const pieceFenCode = this.getFenCodeFromPieceElem(pieceElem);
  430.             const [xPos, yPos] = pieceElem.classList.toString().match(/square-(\d)(\d)/).slice(1);
  431.  
  432.             this.board[8 - yPos][xPos - 1] = pieceFenCode;
  433.         });
  434.  
  435.         const basicFen = this.squeezeEmptySquares(this.board.map(x => x.join('')).join('/'));
  436.  
  437.         return basicFen;
  438.     }
  439.  
  440.     this.getFen = () => {
  441.         const basicFen = this.getBasicFen();
  442.         const rights = this.getRights();
  443.  
  444.  
  445.         return `${basicFen} ${turn} ${rights} - 0 1`;
  446.     }
  447. }
  448.  
  449. function InterfaceUtils() {
  450.     this.boardUtils = {
  451.         findSquareElem: (squareCode) => {
  452.             if (!Gui?.document) return;
  453.  
  454.             return Gui.document.querySelector(`.square-${squareCode}`);
  455.         },
  456.         markMove: (fromSquare, toSquare) => {
  457.             if (!Gui?.document) return;
  458.  
  459.             const [fromElem, toElem] = [this.boardUtils.findSquareElem(fromSquare), this.boardUtils.findSquareElem(toSquare)];
  460.  
  461.  
  462.             if (isPlayerTurn) {
  463.                 fromElem.classList.add('best-move-from');
  464.                 toElem.classList.add('best-move-to');
  465.             } else {
  466.                 fromElem.classList.add('negative-best-move-from');
  467.                 toElem.classList.add('negative-best-move-to');
  468.             }
  469.  
  470.             activeGuiMoveHighlights.push(fromElem);
  471.             activeGuiMoveHighlights.push(toElem);
  472.         },
  473.         removeBestMarkings: () => {
  474.             if (!Gui?.document) return;
  475.  
  476.             activeGuiMoveHighlights.forEach(elem => {
  477.                 elem.classList.remove('best-move-from', 'best-move-to', 'negative-best-move-from', 'negative-best-move-to');
  478.             });
  479.  
  480.             activeGuiMoveHighlights = [];
  481.         },
  482.         updateBoardFen: fen => {
  483.             if (!Gui?.document) return;
  484.  
  485.             Gui.document.querySelector('#fen').textContent = fen;
  486.         },
  487.         updateBoardPower: (myScore, enemyScore) => {
  488.             if (!Gui?.document) return;
  489.  
  490.             Gui.document.querySelector('#enemy-score').textContent = enemyScore;
  491.             Gui.document.querySelector('#my-score').textContent = myScore;
  492.         },
  493.         updateBoardOrientation: orientation => {
  494.             if (!Gui?.document) return;
  495.  
  496.             const orientationElem = Gui?.document?.querySelector('#orientation');
  497.  
  498.             if (orientationElem) {
  499.                 orientationElem.textContent = orientation;
  500.             }
  501.         }
  502.     }
  503.  
  504.     this.engineLog = str => {
  505.         if (!Gui?.document || enableUserLog == 0) return;
  506.  
  507.         const logElem = document.createElement('div');
  508.         logElem.classList.add('list-group-item');
  509.  
  510.         if (str.includes('info')) logElem.classList.add('list-group-item-info');
  511.         if (str.includes('bestmove')) logElem.classList.add('list-group-item-success');
  512.  
  513.         logElem.innerText = `#${engineLogNum++} ${str}`;
  514.  
  515.         Gui.document.querySelector('#engine-log-container').prepend(logElem);
  516.     }
  517.  
  518.     this.log = str => {
  519.         if (!Gui?.document || enableUserLog == 0) return;
  520.  
  521.         const logElem = document.createElement('div');
  522.         logElem.classList.add('list-group-item');
  523.  
  524.         if (str.includes('info')) logElem.classList.add('list-group-item-info');
  525.         if (str.includes('bestmove')) logElem.classList.add('list-group-item-success');
  526.  
  527.         const container = Gui?.document?.querySelector('#userscript-log-container');
  528.  
  529.         if (container) {
  530.             logElem.innerText = `#${userscriptLogNum++} ${str}`;
  531.  
  532.             container.prepend(logElem);
  533.         }
  534.     }
  535.  
  536.     this.getBoardOrientation = () => {
  537.         return document.querySelector('.board.flipped') ? 'b' : 'w';
  538.     }
  539.  
  540.     this.updateBestMoveProgress = text => {
  541.         if (!Gui?.document) return;
  542.  
  543.         const progressBarElem = Gui.document.querySelector('#best-move-progress');
  544.  
  545.         progressBarElem.innerText = text;
  546.  
  547.         progressBarElem.classList.remove('hidden');
  548.         progressBarElem.classList.add('wiggle');
  549.     }
  550.  
  551.     this.stopBestMoveProcessingAnimation = () => {
  552.         if (!Gui?.document) return;
  553.  
  554.         const progressBarElem = Gui.document.querySelector('#best-move-progress');
  555.  
  556.         progressBarElem.classList.remove('wiggle');
  557.     }
  558.  
  559.     this.hideBestMoveProgress = () => {
  560.         if (!Gui?.document) return;
  561.  
  562.         const progressBarElem = Gui.document.querySelector('#best-move-progress');
  563.  
  564.         if (!progressBarElem.classList.contains('hidden')) {
  565.             progressBarElem.classList.add('hidden');
  566.             this.stopBestMoveProcessingAnimation();
  567.         }
  568.     }
  569. }
  570.  
  571. function LozzaUtility() {
  572.     this.separateMoveCodes = moveCode => {
  573.         moveCode = moveCode.trim();
  574.  
  575.         let move = moveCode.split(' ')[1];
  576.  
  577.         return [move.slice(0, 2), move.slice(2, 4)];
  578.     }
  579.  
  580.     this.extractInfo = str => {
  581.         const keys = ['time', 'nps', 'depth'];
  582.  
  583.         return keys.reduce((acc, key) => {
  584.             const match = str.match(`${key} (\\d+)`);
  585.  
  586.             if (match) {
  587.                 acc[key] = Number(match[1]);
  588.             }
  589.  
  590.             return acc;
  591.         }, {});
  592.     }
  593. }
  594.  
  595. function fenSquareToChessComSquare(fenSquareCode) {
  596.     const [x, y] = fenSquareCode.split('');
  597.  
  598.     return `square-${['abcdefgh'.indexOf(x) + 1]}${y}`;
  599. }
  600.  
  601. function markMoveToSite(fromSquare, toSquare) {
  602.     const highlight = (fenSquareCode, style) => {
  603.         const squareClass = fenSquareToChessComSquare(fenSquareCode);
  604.  
  605.         const highlightElem = document.createElement('div');
  606.         highlightElem.classList.add('highlight');
  607.         highlightElem.classList.add(squareClass);
  608.         highlightElem.dataset.testElement = 'highlight';
  609.         highlightElem.style = style;
  610.  
  611.         activeSiteMoveHighlights.push(highlightElem);
  612.  
  613.         const existingHighLight = document.querySelector(`.highlight.${squareClass}`);
  614.  
  615.         if (existingHighLight) {
  616.             existingHighLight.remove();
  617.         }
  618.  
  619.         chessBoardElem.prepend(highlightElem);
  620.     }
  621.  
  622.     const defaultFromSquareStyle = 'background-color: rgb(120 130 255 / 90%); border: 4px solid rgb(0 0 0 / 50%);';
  623.     const defaultToSquareStyle = 'background-color: rgb(60 140 255 / 90%); border: 4px dashed rgb(0 0 0 / 50%);';
  624.     const negativeFromSquareStyle = 'background-color: rgb(255 0 0 / 20%); border: 4px solid rgb(0 0 0 / 50%);';
  625.     const negativeToSquareStyle = 'background-color: rgb(255 0 0 / 20%); border: 4px dashed rgb(0 0 0 / 50%);';
  626.  
  627.     const subtleMode = GM_getValue(dbValues.subtleMode);
  628.     const subtletiness = GM_getValue(dbValues.subtletiness);
  629.  
  630.     highlight(fromSquare, subtleMode ? `background-color: rgb(0 0 0 / ${subtletiness}%);` : (isPlayerTurn ? defaultFromSquareStyle : negativeFromSquareStyle));
  631.     highlight(toSquare, subtleMode ? `background-color: rgb(0 0 0 / ${subtletiness}%);` : (isPlayerTurn ? defaultToSquareStyle : negativeToSquareStyle));
  632. }
  633.  
  634. function removeSiteMoveMarkings() {
  635.     activeSiteMoveHighlights.forEach(elem => {
  636.         elem?.remove();
  637.     });
  638.  
  639.     activeSiteMoveHighlights = [];
  640. }
  641.  
  642. function updateBestMove(forced = false, mutationArr) {
  643.  
  644.  
  645.     const FenUtil = new FenUtils();
  646.  
  647.     let currentFen = FenUtil.getFen();
  648.  
  649.  
  650.     if (currentFen != lastFen || forced == true) {
  651.         lastFen = currentFen;
  652.  
  653.         
  654.  
  655.  
  656.         if (forced == true) {
  657.  
  658.             sendBestMove();
  659.         }
  660.         else if (mutationArr) {
  661.             const attributeMutationArr = mutationArr.filter(m => m.target.classList.contains('piece') && m.attributeName == 'class');
  662.  
  663.             if (attributeMutationArr?.length) {
  664.                 turn = FenUtil.getPieceOppositeColor(FenUtil.getFenCodeFromPieceElem(attributeMutationArr[0].target));
  665.                 Interface.log(`Turn updated to ${turn}!`);
  666.  
  667.                 sendBestMove();
  668.             }
  669.         }
  670.  
  671.         updateBoard();
  672.  
  673.  
  674.     }
  675. }
  676.  
  677.  
  678.  
  679. function sendBestMove() {
  680.     updateBoard();
  681.     isPlayerTurn = playerColor == null || turn == playerColor;
  682.  
  683.     if (!isPlayerTurn && !show_opposite_moves) {
  684.         return;
  685.     }
  686.  
  687.  
  688.  
  689.     reloadChessEngine(false, () => {
  690.         Interface.log('Sending best move request to the engine!');
  691.         if (use_book_moves) {
  692.             getBookMoves(turn);
  693.         } else {
  694.             getBestMoves(turn);
  695.         }
  696.     });
  697.  
  698.  
  699.  
  700. }
  701.  
  702.  
  703. function updateBoard() {
  704.     Interface.stopBestMoveProcessingAnimation();
  705.  
  706.     const FenUtil = new FenUtils();
  707.  
  708.     currentFen = FenUtil.getFen();
  709.  
  710.     Interface.boardUtils.removeBestMarkings();
  711.  
  712.     removeSiteMoveMarkings();
  713.  
  714.     Interface.boardUtils.updateBoardFen(currentFen);
  715. }
  716.  
  717. function sleep(ms) {
  718.     return new Promise(resolve => setTimeout(resolve, ms));
  719. }
  720.  
  721. function getBestMoves(turn) {
  722.     if (!node_engine_id.includes(engineIndex)) {
  723.         // local engines
  724.         while (!engine) {
  725.             sleep(100);
  726.         }
  727.         engine.postMessage(`position fen ${currentFen}`);
  728.  
  729.         if (engineMode == DEPTH_MODE) {
  730.             engine.postMessage('go depth ' + current_depth);
  731.         } else {
  732.             engine.postMessage('go movetime ' + current_movetime);
  733.         }
  734.  
  735.  
  736.     } else {
  737.         // node server
  738.         console.log("using node server");
  739.  
  740.  
  741.         getNodeBestMoves(turn);
  742.     }
  743. }
  744.  
  745. function observeNewMoves() {
  746.     updateBestMove();
  747.  
  748.     const boardObserver = new MutationObserver(mutationArr => {
  749.         const lastPlayerColor = playerColor;
  750.  
  751.         updatePlayerColor();
  752.  
  753.  
  754.         if (playerColor != lastPlayerColor) {
  755.             Interface.log(`Player color changed from ${lastPlayerColor} to ${playerColor}!`);
  756.  
  757.             updateBestMove();
  758.         } else {
  759.             updateBestMove(false, mutationArr);
  760.         }
  761.     });
  762.  
  763.     boardObserver.observe(chessBoardElem, { childList: true, subtree: true, attributes: true });
  764. }
  765.  
  766. function addGuiPages() {
  767.     if (Gui?.document) return;
  768.  
  769.     Gui.addPage("Main", `
  770.     <div class="rendered-form" id="main-tab">
  771.         <script>${GM_getResourceText('jquery.js')}</script>
  772.         <script>${GM_getResourceText('chessboard.js')}</script>
  773.         <div class="card">
  774.             <div class="card-body" id="chessboard">
  775.                 <div class="main-title-bar">
  776.                     <h4 class="card-title">Live Chessboard:</h4>
  777.                     <p id="best-move-progress"></p>
  778.                 </div>
  779.  
  780.                 <div id="board" style="width: 447px"></div>
  781.             </div>
  782.             <div id="orientation" class="hidden"></div>
  783.             <div class="card-footer card"><input type="button" value="Get Best Move" id="bestmove-btn"></input></div>
  784.             <div class="card-footer sideways-card">FEN :<small class="text-muted"><div id="fen"></div></small></div>
  785.             <div class="card-footer sideways-card">ENEMY SCORE :<div id="enemy-score"></div></div>
  786.             <div class="card-footer sideways-card">MY SCORE : <div id="my-score"></div></div>
  787.         </div>
  788.         <script>
  789.         const orientationElem = document.querySelector('#orientation');
  790.         const fenElem = document.querySelector('#fen');
  791.  
  792.         let board = ChessBoard('board', {
  793.             pieceTheme: '${repositoryRawURL}/content/chesspieces/{piece}.svg',
  794.             position: 'start',
  795.             orientation: '${playerColor == 'b' ? 'black' : 'white'}'
  796.         });
  797.  
  798.         const orientationObserver = new MutationObserver(() => {
  799.             board = ChessBoard('board', {
  800.                 pieceTheme: '${repositoryRawURL}/content/chesspieces/{piece}.svg',
  801.                 position: fenElem.textContent,
  802.                 orientation: orientationElem.textContent == 'b' ? 'black' : 'white'
  803.             });
  804.         });
  805.  
  806.         const fenObserver = new MutationObserver(() => {
  807.             board.position(fenElem.textContent);
  808.         });
  809.  
  810.         orientationObserver.observe(orientationElem, { attributes: true,  childList: true,  characterData: true });
  811.         fenObserver.observe(fenElem, { attributes: true,  childList: true,  characterData: true });
  812.         </script>
  813.     </div>
  814.     `);
  815.  
  816.     Gui.addPage('Log', `
  817.     <div class="rendered-form" id="log-tab">
  818.         <div class="card">
  819.             <div class="card-body">
  820.                 <h4 class="card-title">Userscript Log:</h4>
  821.                 <ul class="list-group" id="userscript-log-container"></ul>
  822.             </div>
  823.         </div>
  824.         <div class="card">
  825.             <div class="card-body">
  826.                 <h4 class="card-title">Engine Log</h4>
  827.                 <ul class="list-group" id="engine-log-container"></ul>
  828.             </div>
  829.         </div>
  830.     </div>
  831.     `);
  832.  
  833.  
  834.     const subtletiness = GM_getValue(dbValues.subtletiness);
  835.  
  836.  
  837.     const openGuiAutomatically = GM_getValue(dbValues.openGuiAutomatically) == true;
  838.     const subtleMode = GM_getValue(dbValues.subtleMode) == true;
  839.  
  840.  
  841.  
  842.  
  843.  
  844.     Gui.addPage('Settings', `
  845.     <div class="rendered-form" id="settings-tab">
  846.         <div class="card">
  847.             <div class="card-body">
  848.                 <h4 class="card-title">Engine:</h4>
  849.                 <div class="form-group field-select-engine">
  850.                     <select class="form-control" name="select-engine" id="select-engine">
  851.                         <option value="option-lozza" id="select-engine-0">Lozza</option>
  852.                         <option value="option-stockfish" id="select-engine-2">Stockfish 5</option>
  853.                         <option value="option-stockfish2" id="select-engine-3">Stockfish 2018</option>
  854.                         <option value="option-nodeserver" id="select-engine-4">Node Server Engines</option>
  855.                     </select>
  856.                 </div>
  857.  
  858.  
  859. 				
  860. 				<div id="node-engine-div" style="display:${(node_engine_id.includes(engineIndex)) ? 'block' : 'none'};">
  861.                     <label for="engine-url">Engine URL:</label>
  862.                     <input type="text" id="engine-url" value="${node_engine_url}">
  863.                     <br>
  864. 					<label for="engine-name">Engine Name:</label>
  865. 					<input type="text" id="engine-name" value="${node_engine_name}">
  866. 				</div>
  867.             </div>
  868.         </div>
  869.  
  870.  
  871.         <div class="card">
  872.             <div class="card-body">
  873.                 <h4 class="card-title">Engine Strength:</h4>
  874.  
  875. 			<h7 class="card-title">Engine Mode:</h7>
  876.             <div class="form-group field-select-engine-mode">
  877. 			
  878.                 <select class="form-control" name="select-engine-mode" id="select-engine-mode">
  879.                     <option value="option-depth" id="select-engine-mode-0">Depth</option>
  880.                     <option value="option-movetime" id="select-engine-mode-1">Move time</option>
  881.                 </select>
  882.             </div>
  883. 			
  884.             <h7 class="card-title">Engine Power:</h7>
  885.                 <input type="range" class="form-range" min="${MIN_DEPTH}" max="${MAX_DEPTH}" step="1" value="${current_depth}" id="depth-range">
  886.                 <input type="number" class="form-range" min="${MIN_DEPTH}" max="${MAX_DEPTH}" value="${current_depth}" id="depth-range-number">
  887.                 <input type="range" class="form-range" min="${MIN_MOVETIME}" max="${MAX_MOVETIME}" step="50" value="${current_movetime}" id="movetime-range">
  888.                 <input type="number" class="form-range" min="${MIN_MOVETIME}" max="${MAX_MOVETIME}" value="${current_movetime}" id="movetime-range-number">
  889. 			</div>
  890.             <div class="card-footer sideways-card" id="elo">${getEloDescription()}</div>
  891.         </div>
  892.  
  893.         <div class="card">
  894.             <div class="card-body">
  895.                 <h4 class="card-title">Other:</h4>
  896.  
  897. 				        <div>
  898.                             <input type="checkbox" id="enable-user-log" ${enableUserLog ? 'checked' : ''}>
  899.                             <label for="enable-user-log">Enable User Scripts Log</label>
  900.                         </div>
  901.  
  902.  
  903.                         <div>
  904.                             <input type="checkbox" id="use-book-moves" ${use_book_moves ? 'checked' : ''}>
  905.                             <label for="use-book-moves">Use book moves</label>
  906.                         </div>
  907.  
  908.  
  909.  
  910. 						<div id="reload-count-div" style="display:${node_engine_id.includes(engineIndex) ? 'none' : 'block'};">
  911.                             <label for="reload-count">Reload Engine every</label>
  912.                             <input type="number" id="reload-count" value="${reload_every}">
  913. 							<label for="reload-count"> moves</label>
  914.                         </div>
  915.         </div>
  916.  
  917.  
  918.         <div class="card">
  919.             <div class="card-body">
  920.                 <h4 class="card-title">Visual:</h4>
  921.                 <div id="display-moves-on-site-warning" class="alert alert-danger">
  922.                     <strong>Warning !!</strong> You can get Permanently banned in 24 hours. Use with caution.
  923.                 </div>
  924.  
  925.             <div>
  926.                 <input type="checkbox" id="show-opposite-moves" ${show_opposite_moves ? 'checked' : ''}>
  927.                 <label for="show-opposite-moves">Show Opponent best moves</label>
  928.             </div>
  929.  
  930.  
  931.                 <input type="checkbox" id="display-moves-on-site" ${displayMovesOnSite ? 'checked' : ''}>
  932.                 <label for="display-moves-on-site">Display moves on site</label>
  933.                 <!-- Display moves on site additional settings -->
  934.                 <div class="card ${displayMovesOnSite ? '' : 'hidden'}" id="display-moves-on-site-additional">
  935.                     <div class="card-body">
  936.                         <!-- Open GUI automatically checkbox -->
  937.                         <div>
  938.                             <input type="checkbox" id="open-gui-automatically" ${openGuiAutomatically ? 'checked' : ''}>
  939.                             <label for="open-gui-automatically">Open GUI automatically</label>
  940.                         </div>
  941.                         <!-- Subtle mode settinngs -->
  942.                         <div>
  943.                             <!-- Subtle mode checkbox -->
  944.                             <div>
  945.                                 <input type="checkbox" id="subtle-mode" ${subtleMode ? 'checked' : ''}>
  946.                                 <label for="subtle-mode">Subtle mode</label>
  947.                             </div>
  948.                             <!-- Subtle mode additional settings -->
  949.                             <div>
  950.                                 <div class="card ${subtleMode ? '' : 'hidden'}" id="subtletiness-range-container">
  951.                                     <div class="card-body">
  952.                                         <!-- Subtletiness range -->
  953.                                         <h6 class="card-title">Visibility</h6>
  954.                                         <input type="range" class="form-range" min="1" max="50" value="${subtletiness}" id="subtletiness-range">
  955.                                     </div>
  956.                                     <div class="card-footer sideways-card">Percentage <small id="subtletiness-info">${subtletiness}%</small></div>
  957.                                 </div>
  958.                             </div>
  959.                         </div>
  960.                     </div>
  961.                 </div>
  962.             </div>
  963.         </div>
  964.     </div>
  965.     `);
  966.  
  967.  
  968. }
  969.  
  970. function fixDepthMoveTimeInput(depthRangeElem, depthRangeNumberElem, moveTimeRangeElem, moveTimeRangeNumberElem, eloElem) {
  971.     if (engineMode == DEPTH_MODE) {
  972.         if (isNotCompatibleBrowser()) {
  973.             depthRangeElem.style.display = "none";
  974.             depthRangeNumberElem.style.display = "block";
  975.             moveTimeRangeElem.style.display = "none";
  976.             moveTimeRangeNumberElem.style.display = "none";
  977.         } else {
  978.             depthRangeElem.style.display = "block";
  979.             depthRangeNumberElem.style.display = "none";
  980.             moveTimeRangeElem.style.display = "none";
  981.             moveTimeRangeNumberElem.style.display = "none";
  982.         }
  983.     } else {
  984.         if (isNotCompatibleBrowser()) {
  985.             depthRangeElem.style.display = "none";
  986.             depthRangeNumberElem.style.display = "none";
  987.             moveTimeRangeElem.style.display = "none";
  988.             moveTimeRangeNumberElem.style.display = "block";
  989.         } else {
  990.             depthRangeElem.style.display = "none";
  991.             depthRangeNumberElem.style.display = "none";
  992.             moveTimeRangeElem.style.display = "block";
  993.             moveTimeRangeNumberElem.style.display = "none";
  994.         }
  995.     }
  996.  
  997.  
  998.     eloElem.innerText = getEloDescription();
  999.  
  1000. }
  1001.  
  1002. function openGUI() {
  1003.     Interface.log(`Opening GUI!`);
  1004.  
  1005.     const hide = elem => elem.classList.add('hidden');
  1006.     const show = elem => elem.classList.remove('hidden');
  1007.  
  1008.     Gui.open(() => {
  1009.         const depthRangeElem = Gui.document.querySelector('#depth-range');
  1010.         const depthRangeNumberElem = Gui.document.querySelector('#depth-range-number');
  1011.         const moveTimeRangeElem = Gui.document.querySelector('#movetime-range');
  1012.         const moveTimeRangeNumberElem = Gui.document.querySelector('#movetime-range-number');
  1013.         const engineModeElem = Gui.document.querySelector('#select-engine-mode');
  1014.         const engineElem = Gui.document.querySelector('#select-engine');
  1015.         const engineNameDivElem = Gui.document.querySelector('#node-engine-div');
  1016.         const reloadEveryDivElem = Gui.document.querySelector('#reload-count-div');
  1017.         const nodeEngineNameElem = Gui.document.querySelector('#engine-name');
  1018.         const nodeEngineUrlElem = Gui.document.querySelector('#engine-url');
  1019.         const useLocalEngineElem = Gui.document.querySelector('#use-book-moves');
  1020.         const showOppositeMovesElem = Gui.document.querySelector('#show-opposite-moves');
  1021.         const displayMovesOnSiteElem = Gui.document.querySelector('#display-moves-on-site');
  1022.         const openGuiAutomaticallyElem = Gui.document.querySelector('#open-gui-automatically');
  1023.         const openGuiAutomaticallyAdditionalElem = Gui.document.querySelector('#display-moves-on-site-additional');
  1024.         const subtleModeElem = Gui.document.querySelector('#subtle-mode');
  1025.         const subtletinessRangeContainerElem = Gui.document.querySelector('#subtletiness-range-container');
  1026.         const subtletinessRange = Gui.document.querySelector('#subtletiness-range');
  1027.         const subtletinessInfo = Gui.document.querySelector('#subtletiness-info');
  1028.         const reloadEveryElem = Gui.document.querySelector('#reload-count');
  1029.         const enableUserLogElem = Gui.document.querySelector('#enable-user-log');
  1030.         const eloElem = Gui.document.querySelector('#elo');
  1031.         const getBestMoveElem = Gui.document.querySelector('#bestmove-btn');
  1032.  
  1033.  
  1034.         fixDepthMoveTimeInput(depthRangeElem, depthRangeNumberElem, moveTimeRangeElem, moveTimeRangeNumberElem, eloElem);
  1035.  
  1036.         engineElem.selectedIndex = engineIndex;
  1037.         engineModeElem.selectedIndex = engineMode;
  1038.  
  1039.  
  1040.         // compatibility fixed
  1041.         if (isNotCompatibleBrowser()) {
  1042.             Gui.document.querySelector('#content').style.maxHeight = "500px";
  1043.             Gui.document.querySelector('#content').style.overflow = "scroll";
  1044.             Gui.document.querySelector('#chessboard').style.display = "none";
  1045.             Gui.document.querySelector('#orientation').style.display = "none";
  1046.             Gui.document.querySelector('#engine-log-container').style.maxHeight = "100px";
  1047.             Gui.document.querySelector('#engine-log-container').style.overflow = "scroll";
  1048.             Gui.document.querySelector('#userscript-log-container').style.maxHeight = "100px";
  1049.             Gui.document.querySelector('#userscript-log-container').style.overflow = "scroll";
  1050.  
  1051.             Gui.document.querySelector('#button-close-gui').addEventListener('click', e => {
  1052.                 e.preventDefault();
  1053.                 if (closedGui == true) {
  1054.                     closedGui = false;
  1055.                     Gui.document.querySelector("#content").style.display = "block";
  1056.                 }
  1057.                 else {
  1058.                     closedGui = true;
  1059.                     Gui.document.querySelector("#content").style.display = "none";
  1060.  
  1061.                 }
  1062.  
  1063.  
  1064.             });
  1065.         }
  1066.  
  1067.         getBestMoveElem.onclick = () => {
  1068.             updateBestMove(true);
  1069.         }
  1070.  
  1071.         engineModeElem.onchange = () => {
  1072.             engineMode = engineModeElem.selectedIndex;
  1073.  
  1074.             fixDepthMoveTimeInput(depthRangeElem, depthRangeNumberElem, moveTimeRangeElem, moveTimeRangeNumberElem, eloElem);
  1075.         }
  1076.         nodeEngineNameElem.onchange = () => {
  1077.             node_engine_name = nodeEngineNameElem.value;
  1078.         }
  1079.         nodeEngineUrlElem.onchange = () => {
  1080.             node_engine_url = nodeEngineUrlElem.value;
  1081.         }
  1082.  
  1083.         enableUserLogElem.onchange = () => {
  1084.             const isChecked = enableUserLogElem.checked;
  1085.  
  1086.             if (isChecked)
  1087.                 enableUserLog = true;
  1088.             else
  1089.                 enableUserLog = false;
  1090.         }
  1091.  
  1092.         reloadEveryElem.onchange = () => {
  1093.             reload_every = reloadEveryElem.value;
  1094.         }
  1095.  
  1096.         engineElem.onchange = () => {
  1097.             lastEngine = engineIndex;
  1098.             engineIndex = engineElem.selectedIndex;
  1099.  
  1100.  
  1101.  
  1102.             if (node_engine_id.includes(engineIndex)) {
  1103.                 reloadEveryDivElem.style.display = "none";
  1104.                 engineNameDivElem.style.display = "block";
  1105.  
  1106.  
  1107.             }
  1108.             else {
  1109.                 reloadEveryDivElem.style.display = "block";
  1110.                 engineNameDivElem.style.display = "none";
  1111.             }
  1112.  
  1113.  
  1114.  
  1115.  
  1116.  
  1117.             if (engineObjectURL) {
  1118.                 URL.revokeObjectURL(engineObjectURL);
  1119.                 engineObjectURL = null;
  1120.             }
  1121.  
  1122.  
  1123.  
  1124.  
  1125.             reloadChessEngine(true, () => {
  1126.                 Interface.boardUtils.removeBestMarkings();
  1127.  
  1128.                 removeSiteMoveMarkings();
  1129.  
  1130.                 Interface.boardUtils.updateBoardPower(0, 0);
  1131.             });
  1132.  
  1133.         }
  1134.  
  1135.  
  1136.  
  1137.         depthRangeElem.onchange = () => {
  1138.             changeEnginePower(depthRangeElem.value, eloElem);
  1139.         };
  1140.  
  1141.         depthRangeNumberElem.onchange = () => {
  1142.             changeEnginePower(depthRangeNumberElem.value, eloElem);
  1143.         };
  1144.  
  1145.         moveTimeRangeElem.onchange = () => {
  1146.             changeEnginePower(moveTimeRangeElem.value, eloElem);
  1147.         };
  1148.  
  1149.         moveTimeRangeNumberElem.onchange = () => {
  1150.             changeEnginePower(moveTimeRangeNumberElem.value, eloElem);
  1151.         };
  1152.  
  1153.         showOppositeMovesElem.onchange = () => {
  1154.             const isChecked = showOppositeMovesElem.checked;
  1155.  
  1156.             if (isChecked) {
  1157.                 show_opposite_moves = true;
  1158.             } else {
  1159.                 show_opposite_moves = false;
  1160.             }
  1161.         }
  1162.  
  1163.         useLocalEngineElem.onchange = () => {
  1164.             const isChecked = useLocalEngineElem.checked;
  1165.  
  1166.             if (isChecked) {
  1167.                 use_book_moves = true;
  1168.             } else {
  1169.                 use_book_moves = false;
  1170.             }
  1171.         }
  1172.  
  1173.         displayMovesOnSiteElem.onchange = () => {
  1174.             const isChecked = displayMovesOnSiteElem.checked;
  1175.  
  1176.             if (isChecked) {
  1177.                 displayMovesOnSite = true;
  1178.  
  1179.                 show(openGuiAutomaticallyAdditionalElem);
  1180.  
  1181.                 openGuiAutomaticallyElem.checked = GM_getValue(dbValues.openGuiAutomatically);
  1182.             } else {
  1183.                 displayMovesOnSite = false;
  1184.                 GM_setValue(dbValues.openGuiAutomatically, true);
  1185.  
  1186.                 hide(openGuiAutomaticallyAdditionalElem);
  1187.             }
  1188.         };
  1189.  
  1190.         openGuiAutomaticallyElem.onchange = () => {
  1191.             GM_setValue(dbValues.openGuiAutomatically, openGuiAutomaticallyElem.checked);
  1192.         };
  1193.  
  1194.         subtleModeElem.onchange = () => {
  1195.             const isChecked = subtleModeElem.checked;
  1196.  
  1197.             if (isChecked) {
  1198.                 GM_setValue(dbValues.subtleMode, true);
  1199.                 show(subtletinessRangeContainerElem);
  1200.             } else {
  1201.                 GM_setValue(dbValues.subtleMode, false);
  1202.                 hide(subtletinessRangeContainerElem);
  1203.             }
  1204.         };
  1205.  
  1206.         subtletinessRange.onchange = () => {
  1207.             GM_setValue(dbValues.subtletiness, subtletinessRange.value);
  1208.             subtletinessInfo.innerText = `${subtletinessRange.value}%`;
  1209.         };
  1210.  
  1211.         window.onunload = () => {
  1212.             if (Gui.window && !Gui.window.closed) {
  1213.                 Gui.window.close();
  1214.             }
  1215.         };
  1216.  
  1217.         const isWindowClosed = setInterval(() => {
  1218.             if (Gui.window.closed) {
  1219.                 clearInterval(isWindowClosed);
  1220.                 if (engine != null)
  1221.                     engine.terminate();
  1222.             }
  1223.         }, 1000);
  1224.  
  1225.         observeNewMoves();
  1226.  
  1227.         Interface.log('Initialized!');
  1228.     });
  1229. }
  1230.  
  1231. function changeEnginePower(val, eloElem) {
  1232.     if (engineMode == DEPTH_MODE) {
  1233.         current_depth = val
  1234.     } else {
  1235.         current_movetime = val
  1236.     }
  1237.  
  1238.  
  1239.     eloElem.innerText = getEloDescription();
  1240. }
  1241.  
  1242. function reloadChessEngine(forced, callback) {
  1243.     // reload only if using local engines
  1244.     if (node_engine_id.includes(engineIndex) && forced == false)
  1245.         callback();
  1246.     else if (reload_count >= reload_every || forced == true) {
  1247.         reload_count = 1;
  1248.         Interface.log(`Reloading the chess engine!`);
  1249.  
  1250.         if (engine)
  1251.             engine.terminate();
  1252.  
  1253.         loadChessEngine(callback);
  1254.     }
  1255.     else {
  1256.         reload_count = reload_count + 1;
  1257.         callback();
  1258.     }
  1259. }
  1260.  
  1261.  
  1262.  
  1263. function loadChessEngine(callback) {
  1264.     if (!engineObjectURL) {
  1265.         if (engineIndex == 0)
  1266.             engineObjectURL = URL.createObjectURL(new Blob([GM_getResourceText('lozza.js')], { type: 'application/javascript' }));
  1267.         else if (engineIndex == 1)
  1268.             engineObjectURL = URL.createObjectURL(new Blob([GM_getResourceText('stockfish.js')], { type: 'application/javascript' }));
  1269.         else if (engineIndex == 2)
  1270.             engineObjectURL = URL.createObjectURL(new Blob([GM_getResourceText('stockfish2.js')], { type: 'application/javascript' }));
  1271.     }
  1272.  
  1273.     if (engineObjectURL) {
  1274.         engine = new Worker(engineObjectURL);
  1275.  
  1276.         engine.onmessage = e => {
  1277.             if (e.data.includes('bestmove')) {
  1278.  
  1279.  
  1280.                 let move = e.data.split(' ')[1];
  1281.                 let move2 = e.data.split(' ')[3];
  1282.  
  1283.                 moveResult("", move.slice(0, 2), move.slice(2, 4), 0, true);
  1284.  
  1285.             }
  1286.  
  1287.             else if (e.data.includes('info')) {
  1288.  
  1289.                 const infoObj = LozzaUtils.extractInfo(e.data);
  1290.  
  1291.                 if (engineMode == DEPTH_MODE) {
  1292.  
  1293.                     Interface.updateBestMoveProgress(`Depth: ${infoObj.depth}`);
  1294.  
  1295.                 } else {
  1296.  
  1297.                     Interface.updateBestMoveProgress(`Move time: ${infoObj.time} ms`);
  1298.  
  1299.                 }
  1300.  
  1301.             }
  1302.             Interface.engineLog(e.data);
  1303.         };
  1304.  
  1305.         engine.postMessage('ucinewgame');
  1306.  
  1307.         Interface.log(`Loaded the chess engine!`);
  1308.     }
  1309.  
  1310.     callback();
  1311. }
  1312.  
  1313. function initializeDatabase() {
  1314.     const initValue = (name, value) => {
  1315.         if (GM_getValue(name) == undefined) {
  1316.             GM_setValue(name, value);
  1317.         }
  1318.     };
  1319.  
  1320.     initValue(dbValues.subtleMode, false);
  1321.     initValue(dbValues.openGuiAutomatically, true);
  1322.     initValue(dbValues.subtletiness, 25);
  1323.  
  1324.     Interface.log(`Initialized the database!`);
  1325. }
  1326.  
  1327. async function updatePlayerColor() {
  1328.     const boardOrientation = Interface.getBoardOrientation();
  1329.  
  1330.     playerColor = boardOrientation;
  1331.     turn = boardOrientation;
  1332.  
  1333.     Interface.boardUtils.updateBoardOrientation(playerColor);
  1334. }
  1335.  
  1336. async function initialize(openInterface) {
  1337.     Interface = new InterfaceUtils();
  1338.     LozzaUtils = new LozzaUtility();
  1339.  
  1340.     const boardOrientation = Interface.getBoardOrientation();
  1341.     turn = boardOrientation;
  1342.  
  1343.     initializeDatabase();
  1344.  
  1345.     loadChessEngine(() => {
  1346.  
  1347.     });
  1348.  
  1349.     updatePlayerColor();
  1350.  
  1351.     if (openInterface) {
  1352.         addGuiPages();
  1353.         openGUI();
  1354.     } else {
  1355.         observeNewMoves();
  1356.     }
  1357. }
  1358.  
  1359. if (typeof GM_registerMenuCommand == 'function') {
  1360.     GM_registerMenuCommand("Open C.A.S", e => {
  1361.         if (chessBoardElem) {
  1362.             initialize(true);
  1363.         }
  1364.     }, 's');
  1365. }
  1366.  
  1367. const waitForChessBoard = setInterval(() => {
  1368.     const boardElem = document.querySelector('chess-board');
  1369.     const firstPieceElem = document.querySelector('.piece');
  1370.  
  1371.     if (boardElem && firstPieceElem && chessBoardElem != boardElem) {
  1372.         chessBoardElem = boardElem;
  1373.  
  1374.         if (window.location.href != 'https://www.chess.com/play') {
  1375.             const openGuiAutomatically = GM_getValue(dbValues.openGuiAutomatically);
  1376.  
  1377.             if (openGuiAutomatically == undefined) {
  1378.                 initialize(true);
  1379.             } else {
  1380.                 initialize(openGuiAutomatically);
  1381.             }
  1382.         }
  1383.     }
  1384. }, 1000);