public/javascripts/components/game.js

   1 // TODO: use indexedDB instead of localStorage? (more flexible: allow several games)
   2 Vue.component('my-game', {
   3     data: function() {
   4         return {
   5             vr: null, //object to check moves, store them, FEN..
   6             mycolor: "w",
   7             possibleMoves: [], //filled after each valid click/dragstart
   8             choices: [], //promotion pieces, or checkered captures... (contain possible pieces)
   9             start: {}, //pixels coordinates + id of starting square (click or drag)
  10             selectedPiece: null, //moving piece (or clicked piece)
  11             conn: null, //socket messages
  12             score: "*", //'*' means 'unfinished'
  13             mode: "idle", //human, computer or idle (when not playing)
  14             oppid: "", //opponent ID in case of HH game
  15             oppConnected: false,
  16             seek: false,
  17             fenStart: "",
  18             incheck: [],
  19         };
  20     },
  21     render(h) {
  22         let [sizeX,sizeY] = VariantRules.size;
  23         // Precompute hints squares to facilitate rendering
  24         let hintSquares = doubleArray(sizeX, sizeY, false);
  25         this.possibleMoves.forEach(m => { hintSquares[m.end.x][m.end.y] = true; });
  26         // Also precompute in-check squares
  27         let incheckSq = doubleArray(sizeX, sizeY, false);
  28         this.incheck.forEach(sq => { incheckSq[sq[0]][sq[1]] = true; });
  29         let elementArray = [];
  30         let square00 = document.getElementById("sq-0-0");
  31         let squareWidth = !!square00
  32             ? parseFloat(window.getComputedStyle(square00).width.slice(0,-2))
  33             : 0;
  34         const playingHuman = (this.mode == "human");
  35         const playingComp = (this.mode == "computer");
  36         let actionArray = [
  37             h('button',
  38                 {
  39                     on: { click: this.clickGameSeek },
  40                     attrs: { "aria-label": 'New game VS human' },
  41                     'class': {
  42                         "tooltip": true,
  43                         "seek": this.seek,
  44                         "playing": playingHuman,
  45                     },
  46                 },
  47                 [h('i', { 'class': { "material-icons": true } }, "accessibility")]),
  48             h('button',
  49                 {
  50                     on: { click: this.clickComputerGame },
  51                     attrs: { "aria-label": 'New game VS computer' },
  52                     'class': {
  53                         "tooltip":true,
  54                         "playing": playingComp,
  55                     },
  56                 },
  57                 [h('i', { 'class': { "material-icons": true } }, "computer")])
  58         ];
  59         if (!!this.vr)
  60         {
  61             if (this.mode == "human")
  62             {
  63                 let connectedIndic = h(
  64                     'div',
  65                     {
  66                         "class": {
  67                             "connected": this.oppConnected,
  68                             "disconnected": !this.oppConnected,
  69                         },
  70                     }
  71                 );
  72                 elementArray.push(connectedIndic);
  73             }
  74             let choices = h('div',
  75                 {
  76                     attrs: { "id": "choices" },
  77                     'class': { 'row': true },
  78                     style: {
  79                         //"position": "relative",
  80                         "display": this.choices.length>0?"block":"none",
  81                         "top": "-" + ((sizeY/2)*squareWidth+squareWidth/2) + "px",
  82                         "width": (this.choices.length * squareWidth) + "px",
  83                         "height": squareWidth + "px",
  84                     },
  85                 },
  86                 this.choices.map( m => { //a "choice" is a move
  87                     return h('div',
  88                         {
  89                             'class': { 'board': true },
  90                             style: {
  91                                 'width': (100/this.choices.length) + "%",
  92                                 'padding-bottom': (100/this.choices.length) + "%",
  93                             },
  94                         },
  95                         [h('img',
  96                             {
  97                                 attrs: { "src": '/images/pieces/' + VariantRules.getPpath(m.appear[0].c+m.appear[0].p) + '.svg' },
  98                                 'class': { 'choice-piece': true, 'board': true },
  99                                 on: { "click": e => { this.play(m); this.choices=[]; } },
 100                             })
 101                         ]
 102                     );
 103                 })
 104             );
 105             // Create board element (+ reserves if needed by variant or mode)
 106             let gameDiv = h('div',
 107                 {
 108                     'class': { 'game': true },
 109                 },
 110                 [_.range(sizeX).map(i => {
 111                     let ci = this.mycolor=='w' ? i : sizeX-i-1;
 112                     return h(
 113                         'div',
 114                         {
 115                             'class': {
 116                                 'row': true,
 117                             },
 118                             style: { 'opacity': this.choices.length>0?"0.5":"1" },
 119                         },
 120                         _.range(sizeY).map(j => {
 121                             let cj = this.mycolor=='w' ? j : sizeY-j-1;
 122                             let elems = [];
 123                             if (this.vr.board[ci][cj] != VariantRules.EMPTY)
 124                             {
 125                                 elems.push(
 126                                     h(
 127                                         'img',
 128                                         {
 129                                             'class': {
 130                                                 'piece': true,
 131                                                 'ghost': !!this.selectedPiece && this.selectedPiece.parentNode.id == "sq-"+ci+"-"+cj,
 132                                             },
 133                                             attrs: {
 134                                                 src: "/images/pieces/" + VariantRules.getPpath(this.vr.board[ci][cj]) + ".svg",
 135                                             },
 136                                         }
 137                                     )
 138                                 );
 139                             }
 140                             if (hintSquares[ci][cj])
 141                             {
 142                                 elems.push(
 143                                     h(
 144                                         'img',
 145                                         {
 146                                             'class': {
 147                                                 'mark-square': true,
 148                                             },
 149                                             attrs: {
 150                                                 src: "/images/mark.svg",
 151                                             },
 152                                         }
 153                                     )
 154                                 );
 155                             }
 156                             const lm = this.vr.lastMove;
 157                             const highlight = !!lm && _.isMatch(lm.end, {x:ci,y:cj});
 158                             return h(
 159                                 'div',
 160                                 {
 161                                     'class': {
 162                                         'board': true,
 163                                         'light-square': !highlight && (i+j)%2==0,
 164                                         'dark-square': !highlight && (i+j)%2==1,
 165                                         'highlight': highlight,
 166                                         'incheck': incheckSq[ci][cj],
 167                                     },
 168                                     attrs: {
 169                                         id: this.getSquareId({x:ci,y:cj}),
 170                                     },
 171                                 },
 172                                 elems
 173                             );
 174                         })
 175                     );
 176                 }), choices]
 177             );
 178             actionArray.push(
 179                 h('button',
 180                     {
 181                         on: { click: this.resign },
 182                         attrs: { "aria-label": 'Resign' },
 183                         'class': { "tooltip":true },
 184                     },
 185                     [h('i', { 'class': { "material-icons": true } }, "flag")])
 186             );
 187             elementArray.push(gameDiv);
 188     //          if (!!vr.reserve)
 189     //          {
 190     //              let reserve = h('div',
 191     //                  {'class':{'game':true}}, [
 192     //                      h('div',
 193     //                          { 'class': { 'row': true }},
 194     //                          [
 195     //                              h('div',
 196     //                                  {'class':{'board':true}},
 197     //                                  [h('img',{'class':{"piece":true},attrs:{"src":"/images/pieces/wb.svg"}})]
 198     //                              )
 199     //                          ]
 200     //                      )
 201     //                  ],
 202     //              );
 203     //              elementArray.push(reserve);
 204     //          }
 205             const eogMessage = this.getEndgameMessage(this.score);
 206             const modalEog = [
 207                 h('input',
 208                     {
 209                         attrs: { "id": "modal-eog", type: "checkbox" },
 210                         "class": { "modal": true },
 211                     }),
 212                 h('div',
 213                     {
 214                         attrs: { "role": "dialog", "aria-labelledby": "dialog-title" },
 215                     },
 216                     [
 217                         h('div',
 218                             {
 219                                 "class": { "card": true, "smallpad": true },
 220                             },
 221                             [
 222                                 h('label',
 223                                     {
 224                                         attrs: { "for": "modal-eog" },
 225                                         "class": { "modal-close": true },
 226                                     }
 227                                 ),
 228                                 h('h3',
 229                                     {
 230                                         "class": { "section": true },
 231                                         domProps: { innerHTML: eogMessage },
 232                                     }
 233                                 )
 234                             ]
 235                         )
 236                     ]
 237                 )
 238             ];
 239             elementArray = elementArray.concat(modalEog);
 240         }
 241         const modalNewgame = [
 242             h('input',
 243                 {
 244                     attrs: { "id": "modal-newgame", type: "checkbox" },
 245                     "class": { "modal": true },
 246                 }),
 247             h('div',
 248                 {
 249                     attrs: { "role": "dialog", "aria-labelledby": "dialog-title" },
 250                 },
 251                 [
 252                     h('div',
 253                         {
 254                             "class": { "card": true, "smallpad": true },
 255                         },
 256                         [
 257                             h('label',
 258                                 {
 259                                     attrs: { "id": "close-newgame", "for": "modal-newgame" },
 260                                     "class": { "modal-close": true },
 261                                 }
 262                             ),
 263                             h('h3',
 264                                 {
 265                                     "class": { "section": true },
 266                                     domProps: { innerHTML: "New game" },
 267                                 }
 268                             ),
 269                             h('p',
 270                                 {
 271                                     "class": { "section": true },
 272                                     domProps: { innerHTML: "Waiting for opponent..." },
 273                                 }
 274                             )
 275                         ]
 276                     )
 277                 ]
 278             )
 279         ];
 280         elementArray = elementArray.concat(modalNewgame);
 281         const actions = h('div',
 282             {
 283                 attrs: { "id": "actions" },
 284                 'class': { 'text-center': true },
 285             },
 286             actionArray
 287         );
 288         elementArray.push(actions);
 289         if (this.score != "*")
 290         {
 291             elementArray.push(
 292                 h('div',
 293                     { },
 294                     [
 295                         h('p',
 296                             {
 297                                 domProps: {
 298                                     innerHTML: this.vr.getPGN(this.mycolor, this.score, this.fenStart, this.mode)
 299                                 }
 300                             }
 301                         )
 302                     ]
 303                 )
 304             );
 305         }
 306         return h(
 307             'div',
 308             {
 309                 'class': {
 310                     "col-sm-12":true,
 311                     "col-md-8":true,
 312                     "col-md-offset-2":true,
 313                     "col-lg-6":true,
 314                     "col-lg-offset-3":true,
 315                 },
 316                 // NOTE: click = mousedown + mouseup --> what about smartphone?!
 317                 on: {
 318                     mousedown: this.mousedown,
 319                     mousemove: this.mousemove,
 320                     mouseup: this.mouseup,
 321                     touchdown: this.mousedown,
 322                     touchmove: this.mousemove,
 323                     touchup: this.mouseup,
 324                 },
 325             },
 326             elementArray
 327         );
 328     },
 329     created: function() {
 330         const url = socketUrl;
 331         const continuation = (localStorage.getItem("variant") === variant);
 332         this.myid = continuation
 333             ? localStorage.getItem("myid")
 334             // random enough (TODO: function)
 335             : (Date.now().toString(36) + Math.random().toString(36).substr(2, 7)).toUpperCase();
 336         this.conn = new WebSocket(url + "/?sid=" + this.myid + "&page=" + variant);
 337         const socketOpenListener = () => {
 338             if (continuation)
 339             {
 340                 const fen = localStorage.getItem("fen");
 341                 const mycolor = localStorage.getItem("mycolor");
 342                 const oppid = localStorage.getItem("oppid");
 343                 const moves = JSON.parse(localStorage.getItem("moves"));
 344                 this.newGame("human", fen, mycolor, oppid, moves, true);
 345                 // Send ping to server (answer pong if opponent is connected)
 346                 this.conn.send(JSON.stringify({code:"ping",oppid:this.oppid}));
 347             }
 348             else if (localStorage.getItem("newgame") === variant)
 349             {
 350                 // New game request has been cancelled on disconnect
 351                 this.seek = true;
 352                 this.newGame("human", undefined, undefined, undefined, undefined, "reconnect");
 353             }
 354         };
 355         const socketMessageListener = msg => {
 356             const data = JSON.parse(msg.data);
 357             console.log("Receive message: " + data.code);
 358             switch (data.code)
 359             {
 360                 case "newgame": //opponent found
 361                     this.newGame("human", data.fen, data.color, data.oppid); //oppid: opponent socket ID
 362                     break;
 363                 case "newmove": //..he played!
 364                     this.play(data.move, "animate");
 365                     break;
 366                 case "pong": //received if we sent a ping (game still alive on our side)
 367                     this.oppConnected = true;
 368                     const L = this.vr.moves.length;
 369                     // Send our "last state" informations to opponent
 370                     this.conn.send(JSON.stringify({
 371                         code:"lastate",
 372                         oppid:this.oppid,
 373                         lastMove:L>0?this.vr.moves[L-1]:undefined,
 374                         movesCount:L,
 375                     }));
 376                     break;
 377                 case "lastate": //got opponent infos about last move (we might have resigned)
 378                     if (this.mode!="human" || this.oppid!=data.oppid)
 379                     {
 380                         // OK, we resigned
 381                         this.conn.send(JSON.stringify({
 382                             code:"lastate",
 383                             oppid:this.oppid,
 384                             lastMove:undefined,
 385                             movesCount:-1,
 386                         }));
 387                     }
 388                     else if (data.movesCount < 0)
 389                     {
 390                         // OK, he resigned
 391                         this.endGame(this.mycolor=="w"?"1-0":"0-1");
 392                     }
 393                     else if (data.movesCount < this.vr.moves.length)
 394                     {
 395                         // We must tell last move to opponent
 396                         const L = this.vr.moves.length;
 397                         this.conn.send(JSON.stringify({
 398                             code:"lastate",
 399                             oppid:this.oppid,
 400                             lastMove:this.vr.moves[L-1],
 401                             movesCount:L,
 402                         }));
 403                     }
 404                     else if (data.movesCount > this.vr.moves.length) //just got last move from him
 405                         this.play(data.lastMove, "animate");
 406                     break;
 407                 case "resign": //..you won!
 408                     this.endGame(this.mycolor=="w"?"1-0":"0-1");
 409                     break;
 410                 // TODO: also use (dis)connect info to count online players?
 411                 case "connect":
 412                 case "disconnect":
 413                     if (this.mode == "human" && this.oppid == data.id)
 414                         this.oppConnected = (data.code == "connect");
 415                     break;
 416             }
 417         };
 418         const socketCloseListener = () => {
 419             this.conn = new WebSocket(url + "/?sid=" + this.myid + "&page=" + variant);
 420             this.conn.addEventListener('open', socketOpenListener);
 421             this.conn.addEventListener('message', socketMessageListener);
 422             this.conn.addEventListener('close', socketCloseListener);
 423         };
 424         this.conn.onopen = socketOpenListener;
 425         this.conn.onmessage = socketMessageListener;
 426         this.conn.onclose = socketCloseListener;
 427     },
 428     methods: {
 429         endGame: function(score) {
 430             this.score = score;
 431             let modalBox = document.getElementById("modal-eog");
 432             modalBox.checked = true;
 433             setTimeout(() => { modalBox.checked = false; }, 2000);
 434             if (this.mode == "human")
 435                 this.clearStorage();
 436             this.mode = "idle";
 437             this.oppid = "";
 438         },
 439         getEndgameMessage: function(score) {
 440             let eogMessage = "Unfinished";
 441             switch (this.score)
 442             {
 443                 case "1-0":
 444                     eogMessage = "White win";
 445                     break;
 446                 case "0-1":
 447                     eogMessage = "Black win";
 448                     break;
 449                 case "1/2":
 450                     eogMessage = "Draw";
 451                     break;
 452             }
 453             return eogMessage;
 454         },
 455         resign: function() {
 456             if (this.mode == "human" && this.oppConnected)
 457             {
 458                 try {
 459                     this.conn.send(JSON.stringify({code: "resign", oppid: this.oppid}));
 460                 } catch (INVALID_STATE_ERR) {
 461                     return; //socket is not ready (and not yet reconnected)
 462                 }
 463             }
 464             this.endGame(this.mycolor=="w"?"0-1":"1-0");
 465         },
 466         setStorage: function() {
 467             localStorage.setItem("myid", this.myid);
 468             localStorage.setItem("variant", variant);
 469             localStorage.setItem("mycolor", this.mycolor);
 470             localStorage.setItem("oppid", this.oppid);
 471             localStorage.setItem("fenStart", this.fenStart);
 472             localStorage.setItem("moves", JSON.stringify(this.vr.moves));
 473             localStorage.setItem("fen", this.vr.getFen());
 474         },
 475         updateStorage: function() {
 476             localStorage.setItem("moves", JSON.stringify(this.vr.moves));
 477             localStorage.setItem("fen", this.vr.getFen());
 478         },
 479         clearStorage: function() {
 480             delete localStorage["variant"];
 481             delete localStorage["myid"];
 482             delete localStorage["mycolor"];
 483             delete localStorage["oppid"];
 484             delete localStorage["fenStart"];
 485             delete localStorage["fen"];
 486             delete localStorage["moves"];
 487         },
 488         clickGameSeek: function() {
 489             if (this.mode == "human")
 490                 return; //no newgame while playing
 491             if (this.seek)
 492             {
 493                 delete localStorage["newgame"]; //cancel game seek
 494                 this.seek = false;
 495             }
 496             else
 497                 this.newGame("human");
 498         },
 499         clickComputerGame: function() {
 500             if (this.mode == "human")
 501                 return; //no newgame while playing
 502             this.newGame("computer");
 503         },
 504         newGame: function(mode, fenInit, color, oppId, moves, continuation) {
 505             const fen = fenInit || VariantRules.GenRandInitFen();
 506             console.log(fen); //DEBUG
 507             this.score = "*";
 508             if (mode=="human" && !oppId)
 509             {
 510                 const storageVariant = localStorage.getItem("variant");
 511                 if (!!storageVariant && storageVariant !== variant)
 512                 {
 513                     alert("Finish your " + storageVariant + " game first!");
 514                     return;
 515                 }
 516                 // Send game request and wait..
 517                 localStorage["newgame"] = variant;
 518                 this.seek = true;
 519                 this.clearStorage(); //in case of
 520                 try {
 521                     this.conn.send(JSON.stringify({code:"newgame", fen:fen}));
 522                 } catch (INVALID_STATE_ERR) {
 523                     return; //nothing achieved
 524                 }
 525                 if (continuation !== "reconnect") //TODO: bad HACK...
 526                 {
 527                     let modalBox = document.getElementById("modal-newgame");
 528                     modalBox.checked = true;
 529                     setTimeout(() => { modalBox.checked = false; }, 2000);
 530                 }
 531                 return;
 532             }
 533             this.vr = new VariantRules(fen, moves || []);
 534             this.mode = mode;
 535             this.incheck = []; //in case of
 536             this.fenStart = continuation
 537                 ? localStorage.getItem("fenStart")
 538                 : fen.split(" ")[0]; //Only the position matters
 539             if (mode=="human")
 540             {
 541                 // Opponent found!
 542                 if (!continuation)
 543                 {
 544                     // Not playing sound on game continuation:
 545                     new Audio("/sounds/newgame.mp3").play().then(() => {}).catch(err => {});
 546                     document.getElementById("modal-newgame").checked = false;
 547                 }
 548                 this.oppid = oppId;
 549                 this.oppConnected = true;
 550                 this.mycolor = color;
 551                 this.seek = false;
 552                 if (!!moves && moves.length > 0) //imply continuation
 553                 {
 554                     const oppCol = this.vr.turn;
 555                     const lastMove = moves[moves.length-1];
 556                     this.vr.undo(lastMove);
 557                     this.incheck = this.vr.getCheckSquares(lastMove, oppCol);
 558                     this.vr.play(lastMove, "ingame");
 559                 }
 560                 delete localStorage["newgame"];
 561                 this.setStorage(); //in case of interruptions
 562             }
 563             else //against computer
 564             {
 565                 this.mycolor = Math.random() < 0.5 ? 'w' : 'b';
 566                 if (this.mycolor == 'b')
 567                     setTimeout(this.playComputerMove, 500);
 568             }
 569         },
 570         playComputerMove: function() {
 571             const compColor = this.mycolor=='w' ? 'b' : 'w';
 572             const compMove = this.vr.getComputerMove(compColor);
 573             // HACK: avoid selecting elements before they appear on page:
 574             setTimeout(() => this.play(compMove, "animate"), 500);
 575         },
 576         // Get the identifier of a HTML table cell from its numeric coordinates o.x,o.y.
 577         getSquareId: function(o) {
 578             // NOTE: a separator is required to allow any size of board
 579             return  "sq-" + o.x + "-" + o.y;
 580         },
 581         // Inverse function
 582         getSquareFromId: function(id) {
 583             let idParts = id.split('-');
 584             return [parseInt(idParts[1]), parseInt(idParts[2])];
 585         },
 586         mousedown: function(e) {
 587             e = e || window.event;
 588             e.preventDefault(); //disable native drag & drop
 589             if (!this.selectedPiece && e.target.classList.contains("piece"))
 590             {
 591                 // Next few lines to center the piece on mouse cursor
 592                 let rect = e.target.parentNode.getBoundingClientRect();
 593                 this.start = {
 594                     x: rect.x + rect.width/2,
 595                     y: rect.y + rect.width/2,
 596                     id: e.target.parentNode.id
 597                 };
 598                 this.selectedPiece = e.target.cloneNode();
 599                 this.selectedPiece.style.position = "absolute";
 600                 this.selectedPiece.style.top = 0;
 601                 this.selectedPiece.style.display = "inline-block";
 602                 this.selectedPiece.style.zIndex = 3000;
 603                 let startSquare = this.getSquareFromId(e.target.parentNode.id);
 604                 this.possibleMoves = this.vr.canIplay(this.mycolor,startSquare)
 605                     ? this.vr.getPossibleMovesFrom(startSquare)
 606                     : [];
 607                 e.target.parentNode.appendChild(this.selectedPiece);
 608             }
 609         },
 610         mousemove: function(e) {
 611             if (!this.selectedPiece)
 612                 return;
 613             e = e || window.event;
 614             // If there is an active element, move it around
 615             if (!!this.selectedPiece)
 616             {
 617                 this.selectedPiece.style.left = (e.clientX-this.start.x) + "px";
 618                 this.selectedPiece.style.top = (e.clientY-this.start.y) + "px";
 619             }
 620         },
 621         mouseup: function(e) {
 622             if (!this.selectedPiece)
 623                 return;
 624             e = e || window.event;
 625             // Read drop target (or parentElement, parentNode... if type == "img")
 626             this.selectedPiece.style.zIndex = -3000; //HACK to find square from final coordinates
 627             let landing = document.elementFromPoint(e.clientX, e.clientY);
 628             this.selectedPiece.style.zIndex = 3000;
 629             while (landing.tagName == "IMG") //classList.contains(piece) fails because of mark/highlight
 630                 landing = landing.parentNode;
 631             if (this.start.id == landing.id) //a click: selectedPiece and possibleMoves already filled
 632                 return;
 633             // OK: process move attempt
 634             let endSquare = this.getSquareFromId(landing.id);
 635             let moves = this.findMatchingMoves(endSquare);
 636             this.possibleMoves = [];
 637             if (moves.length > 1)
 638                 this.choices = moves;
 639             else if (moves.length==1)
 640                 this.play(moves[0]);
 641             // Else: impossible move
 642             this.selectedPiece.parentNode.removeChild(this.selectedPiece);
 643             delete this.selectedPiece;
 644             this.selectedPiece = null;
 645         },
 646         findMatchingMoves: function(endSquare) {
 647             // Run through moves list and return the matching set (if promotions...)
 648             let moves = [];
 649             this.possibleMoves.forEach(function(m) {
 650                 if (endSquare[0] == m.end.x && endSquare[1] == m.end.y)
 651                     moves.push(m);
 652             });
 653             return moves;
 654         },
 655         animateMove: function(move) {
 656             let startSquare = document.getElementById(this.getSquareId(move.start));
 657             let endSquare = document.getElementById(this.getSquareId(move.end));
 658             let rectStart = startSquare.getBoundingClientRect();
 659             let rectEnd = endSquare.getBoundingClientRect();
 660             let translation = {x:rectEnd.x-rectStart.x, y:rectEnd.y-rectStart.y};
 661             let movingPiece = document.querySelector("#" + this.getSquareId(move.start) + " > img.piece");
 662             // HACK for animation (otherwise with positive translate, image slides "under background"...)
 663             // Possible improvement: just alter squares on the piece's way...
 664             squares = document.getElementsByClassName("board");
 665             for (let i=0; i<squares.length; i++)
 666             {
 667                 let square = squares.item(i);
 668                 if (square.id != this.getSquareId(move.start))
 669                     square.style.zIndex = "-1";
 670             }
 671             movingPiece.style.transform = "translate(" + translation.x + "px," + translation.y + "px)";
 672             movingPiece.style.transitionDuration = "0.2s";
 673             movingPiece.style.zIndex = "3000";
 674             setTimeout( () => {
 675                 for (let i=0; i<squares.length; i++)
 676                     squares.item(i).style.zIndex = "auto";
 677                 movingPiece.style = {}; //required e.g. for 0-0 with KR swap
 678                 this.play(move);
 679             }, 200);
 680         },
 681         play: function(move, programmatic) {
 682             if (!!programmatic) //computer or human opponent
 683             {
 684                 this.animateMove(move);
 685                 return;
 686             }
 687             const oppCol = this.vr.getOppCol(this.vr.turn);
 688             this.incheck = this.vr.getCheckSquares(move, oppCol); //is opponent in check?
 689             // Not programmatic, or animation is over
 690             if (this.mode == "human" && this.vr.turn == this.mycolor)
 691                 this.conn.send(JSON.stringify({code:"newmove", move:move, oppid:this.oppid}));
 692             new Audio("/sounds/chessmove1.mp3").play().then(() => {}).catch(err => {});
 693             this.vr.play(move, "ingame");
 694             if (this.mode == "human")
 695                 this.updateStorage(); //after our moves and opponent moves
 696             const eog = this.vr.checkGameOver(this.vr.turn);
 697             if (eog != "*")
 698                 this.endGame(eog);
 699             else if (this.mode == "computer" && this.vr.turn != this.mycolor)
 700                 setTimeout(this.playComputerMove, 500);
 701         },
 702     },
 703 })