client/src/components/BaseGame.vue

   1 <template lang="pug">
   2 div#baseGame
   3   input#modalEog.modal(type="checkbox")
   4   div#eogDiv(
   5     role="dialog"
   6     data-checkbox="modalEog"
   7   )
   8     .card.text-center
   9       label.modal-close(for="modalEog")
  10       h3.section {{ endgameMessage }}
  11   #gameContainer
  12     #boardContainer
  13       Board(
  14         ref="board"
  15         :vr="vr"
  16         :last-move="lastMove"
  17         :analyze="mode=='analyze'"
  18         :score="game.score"
  19         :user-color="game.mycolor"
  20         :orientation="orientation"
  21         :vname="game.vname"
  22         :incheck="incheck"
  23         @play-move="play"
  24         @click-square="clickSquare"
  25       )
  26       #turnIndicator(v-if="showTurn") {{ turn }}
  27       #controls.button-group
  28         button(@click="gotoBegin()")
  29           img.inline(src="/images/icons/fast-forward_rev.svg")
  30         button(@click="undo()")
  31           img.inline(src="/images/icons/play_rev.svg")
  32         button(v-if="canFlip" @click="flip()")
  33           img.inline(src="/images/icons/flip.svg")
  34         button(
  35           @click="runAutoplay()"
  36           :class="{'in-autoplay': autoplay}"
  37         )
  38           img.inline(src="/images/icons/autoplay.svg")
  39         button(@click="play()")
  40           img.inline(src="/images/icons/play.svg")
  41         button(@click="gotoEnd()")
  42           img.inline(src="/images/icons/fast-forward.svg")
  43       p#fenAnalyze(v-show="showFen") {{ (!!vr ? vr.getFen() : "") }}
  44     #movesList
  45       MoveList(
  46         :show="showMoves"
  47         :canAnalyze="canAnalyze"
  48         :canDownload="allowDownloadPGN"
  49         :score="game.score"
  50         :message="game.scoreMsg"
  51         :firstNum="firstMoveNumber"
  52         :moves="moves"
  53         :cursor="cursor"
  54         @download="download"
  55         @showrules="showRules"
  56         @analyze="toggleAnalyze"
  57         @goto-move="gotoMove"
  58         @reset-arrows="resetArrows"
  59       )
  60     .clearer
  61 </template>
  62
  63 <script>
  64 import Board from "@/components/Board.vue";
  65 import MoveList from "@/components/MoveList.vue";
  66 import params from "@/parameters";
  67 import { store } from "@/store";
  68 import { getSquareId } from "@/utils/squareId";
  69 import { getDate } from "@/utils/datetime";
  70 import { processModalClick } from "@/utils/modalClick";
  71 import { getScoreMessage } from "@/utils/scoring";
  72 import { getFullNotation } from "@/utils/notation";
  73 import { undoMove } from "@/utils/playUndo";
  74 export default {
  75   name: "my-base-game",
  76   components: {
  77     Board,
  78     MoveList
  79   },
  80   props: ["game"],
  81   data: function() {
  82     return {
  83       st: store.state,
  84       // NOTE: all following variables must be reset at the beginning of a game
  85       vr: null, //VariantRules object, game state
  86       endgameMessage: "",
  87       orientation: "w",
  88       mode: "",
  89       score: "*", //'*' means 'unfinished'
  90       moves: [],
  91       cursor: -1, //index of the move just played
  92       lastMove: null,
  93       firstMoveNumber: 0, //for printing
  94       incheck: [], //for Board
  95       inMultimove: false,
  96       autoplay: false,
  97       inPlay: false,
  98       stackToPlay: []
  99     };
 100   },
 101   computed: {
 102     turn: function() {
 103       if (!this.vr) return "";
 104       if (this.vr.showMoves != "all") {
 105         return this.st.tr[
 106           (this.vr.turn == 'w' ? "White" : "Black") + " to move"];
 107       }
 108       // Cannot flip: racing king or circular chess
 109       return (
 110         this.vr.movesCount == 0 && this.game.mycolor == "w"
 111           ? this.st.tr["It's your turn!"]
 112           : ""
 113       );
 114     },
 115     showFen: function() {
 116       return (
 117         this.mode == "analyze" &&
 118         this.$router.currentRoute.path.indexOf("/analyse") === -1
 119       );
 120     },
 121     // TODO: is it OK to pass "computed" as properties?
 122     // Also, some are seemingly not recomputed when vr is initialized.
 123     showMoves: function() {
 124       return this.game.score != "*"
 125         ? "all"
 126         : (!!this.vr ? this.vr.showMoves : "none");
 127     },
 128     showTurn: function() {
 129       return (
 130         this.game.score == '*' &&
 131         !!this.vr && (this.vr.showMoves != "all" || !this.vr.canFlip)
 132       );
 133     },
 134     canAnalyze: function() {
 135       return (
 136         this.game.mode != "analyze" &&
 137         !!this.vr && this.vr.canAnalyze
 138       );
 139     },
 140     canFlip: function() {
 141       return !!this.vr && this.vr.canFlip;
 142     },
 143     allowDownloadPGN: function() {
 144       return (
 145         this.game.score != "*" ||
 146         (!!this.vr && this.vr.showMoves == "all")
 147       );
 148     }
 149   },
 150   created: function() {
 151     if (!!this.game.fenStart) this.re_setVariables();
 152   },
 153   mounted: function() {
 154     if (!("ontouchstart" in window)) {
 155       // Desktop browser:
 156       const baseGameDiv = document.getElementById("baseGame");
 157       baseGameDiv.tabIndex = 0;
 158       baseGameDiv.addEventListener("click", this.focusBg);
 159       baseGameDiv.addEventListener("keydown", this.handleKeys);
 160       baseGameDiv.addEventListener("wheel", this.handleScroll);
 161     }
 162     document.getElementById("eogDiv")
 163       .addEventListener("click", processModalClick);
 164   },
 165   beforeDestroy: function() {
 166     // TODO: probably not required
 167     this.autoplay = false;
 168   },
 169   methods: {
 170     focusBg: function() {
 171       document.getElementById("baseGame").focus();
 172     },
 173     handleKeys: function(e) {
 174       if ([32, 37, 38, 39, 40].includes(e.keyCode)) e.preventDefault();
 175       switch (e.keyCode) {
 176         case 37:
 177           this.undo();
 178           break;
 179         case 39:
 180           this.play();
 181           break;
 182         case 38:
 183           this.gotoBegin();
 184           break;
 185         case 40:
 186           this.gotoEnd();
 187           break;
 188         case 32:
 189           this.flip();
 190           break;
 191       }
 192     },
 193     handleScroll: function(e) {
 194       e.preventDefault();
 195       if (e.deltaY < 0) this.undo();
 196       else if (e.deltaY > 0) this.play();
 197     },
 198     resetArrows: function() {
 199       // TODO: make arrows scale with board, and remove this
 200       this.$refs["board"].cancelResetArrows();
 201     },
 202     showRules: function() {
 203       // The button is here only on Game page:
 204       document.getElementById("modalRules").checked = true;
 205     },
 206     re_setVariables: function(game) {
 207       if (!game) game = this.game; //in case of...
 208       this.endgameMessage = "";
 209       // "w": default orientation for observed games
 210       this.orientation = game.mycolor || "w";
 211       this.mode = game.mode || game.type; //TODO: merge...
 212       this.moves = JSON.parse(JSON.stringify(game.moves || []));
 213       // Post-processing: decorate each move with notation and FEN
 214       this.vr = new V(game.fenStart);
 215       const parsedFen = V.ParseFen(game.fenStart);
 216       const firstMoveColor = parsedFen.turn;
 217       this.firstMoveNumber = Math.floor(parsedFen.movesCount / 2) + 1;
 218       let L = this.moves.length;
 219       if (L == 0) {
 220         this.incheck = [];
 221         this.score = "*";
 222       }
 223       this.moves.forEach((move,idx) => {
 224         // Strategy working also for multi-moves:
 225         if (!Array.isArray(move)) move = [move];
 226         const Lm = move.length;
 227         move.forEach((m,idxM) => {
 228           m.notation = this.vr.getNotation(m);
 229           m.unambiguous = V.GetUnambiguousNotation(m);
 230           this.vr.play(m);
 231           const checkSquares = this.vr.getCheckSquares();
 232           if (checkSquares.length > 0) m.notation += "+";
 233           if (idxM == Lm - 1) m.fen = this.vr.getFen();
 234           if (idx == L - 1 && idxM == Lm - 1) {
 235             this.incheck = checkSquares;
 236             this.score = this.vr.getCurrentScore();
 237             if (["1-0", "0-1"].includes(this.score)) m.notation += "#";
 238           }
 239         });
 240       });
 241       if (firstMoveColor == "b") {
 242         // 'start' & 'end' is required for Board component
 243         this.moves.unshift({
 244           notation: "...",
 245           unambiguous: "...",
 246           start: { x: -1, y: -1 },
 247           end: { x: -1, y: -1 },
 248           fen: game.fenStart
 249         });
 250         L++;
 251       }
 252       this.positionCursorTo(L - 1);
 253     },
 254     positionCursorTo: function(index) {
 255       this.cursor = index;
 256       // Note: last move in moves array might be a multi-move
 257       if (index >= 0) this.lastMove = this.moves[index];
 258       else this.lastMove = null;
 259     },
 260     toggleAnalyze: function() {
 261       // Autoplay has priority:
 262       if (this.autoplay) return;
 263       if (this.mode != "analyze") {
 264         // Enter analyze mode:
 265         if (this.inMultimove) this.cancelCurrentMultimove();
 266         this.gameMode = this.mode; //was not 'analyze'
 267         this.mode = "analyze";
 268         this.gameCursor = this.cursor;
 269         this.gameMoves = JSON.parse(JSON.stringify(this.moves));
 270         document.getElementById("analyzeBtn").classList.add("active");
 271       }
 272       else {
 273         // Exit analyze mode:
 274         this.mode = this.gameMode ;
 275         this.cursor = this.gameCursor;
 276         this.moves = this.gameMoves;
 277         let fen = this.game.fenStart;
 278         if (this.cursor >= 0) {
 279           let mv = this.moves[this.cursor];
 280           if (!Array.isArray(mv)) mv = [mv];
 281           fen = mv[mv.length-1].fen;
 282         }
 283         this.vr = new V(fen);
 284         this.incheck = this.vr.getCheckSquares();
 285         if (this.cursor >= 0) this.lastMove = this.moves[this.cursor];
 286         else this.lastMove = null;
 287         document.getElementById("analyzeBtn").classList.remove("active");
 288       }
 289     },
 290     download: function() {
 291       const content = this.getPgn();
 292       // Prepare and trigger download link
 293       let downloadAnchor = document.getElementById("download");
 294       downloadAnchor.setAttribute("download", "game.pgn");
 295       downloadAnchor.href =
 296         "data:text/plain;charset=utf-8," + encodeURIComponent(content);
 297       downloadAnchor.click();
 298     },
 299     getPgn: function() {
 300       let pgn = "";
 301       pgn += '[Site "vchess.club"]\n';
 302       pgn += '[Variant "' + this.game.vname + '"]\n';
 303       const gdt = getDate(new Date(this.game.created || Date.now()));
 304       pgn += '[Date "' + gdt + '"]\n';
 305       pgn += '[White "' + this.game.players[0].name + '"]\n';
 306       pgn += '[Black "' + this.game.players[1].name + '"]\n';
 307       pgn += '[Fen "' + this.game.fenStart + '"]\n';
 308       pgn += '[Result "' + this.game.score + '"]\n';
 309       if (!!this.game.id)
 310         pgn += '[Url "' + params.serverUrl + '/game/' + this.game.id + '"]\n';
 311       if (!!this.game.cadence)
 312         pgn += '[Cadence "' + this.game.cadence + '"]\n';
 313       pgn += '\n';
 314       for (let i = 0; i < this.moves.length; i += 2) {
 315         if (i > 0) pgn += " ";
 316         // Adjust dots notation for a better display:
 317         let fullNotation = getFullNotation(this.moves[i]);
 318         if (fullNotation == "...") fullNotation = "..";
 319         pgn += (i / 2 + this.firstMoveNumber) + "." + fullNotation;
 320         if (i+1 < this.moves.length)
 321           pgn += " " + getFullNotation(this.moves[i+1]);
 322       }
 323       pgn += "\n\n";
 324       for (let i = 0; i < this.moves.length; i += 2) {
 325         const moveNumber = i / 2 + this.firstMoveNumber;
 326         // Skip "dots move", useless for machine reading:
 327         if (this.moves[i].notation != "...") {
 328           pgn += moveNumber + ".w " +
 329             getFullNotation(this.moves[i], "unambiguous") + "\n";
 330         }
 331         if (i+1 < this.moves.length) {
 332           pgn += moveNumber + ".b " +
 333             getFullNotation(this.moves[i+1], "unambiguous") + "\n";
 334         }
 335       }
 336       return pgn;
 337     },
 338     showEndgameMsg: function(message) {
 339       this.endgameMessage = message;
 340       document.getElementById("modalEog").checked = true;
 341     },
 342     runAutoplay: function() {
 343       if (this.autoplay) {
 344         this.autoplay = false;
 345         if (this.stackToPlay.length > 0)
 346           // Move(s) arrived in-between
 347           this.play(this.stackToPlay.pop(), "received");
 348       }
 349       else if (this.cursor < this.moves.length - 1) {
 350         this.autoplay = true;
 351         this.play(null, null, null, "autoplay");
 352       }
 353     },
 354     // Animate an elementary move
 355     animateMove: function(move, callback) {
 356       let startSquare = document.getElementById(getSquareId(move.start));
 357       if (!startSquare) return; //shouldn't happen but...
 358       let endSquare = document.getElementById(getSquareId(move.end));
 359       let rectStart = startSquare.getBoundingClientRect();
 360       let rectEnd = endSquare.getBoundingClientRect();
 361       let translation = {
 362         x: rectEnd.x - rectStart.x,
 363         y: rectEnd.y - rectStart.y
 364       };
 365       let movingPiece = document.querySelector(
 366         "#" + getSquareId(move.start) + " > img.piece"
 367       );
 368       // For some unknown reasons Opera get "movingPiece == null" error
 369       // TODO: is it calling 'animate()' twice ? One extra time ?
 370       if (!movingPiece) return;
 371       const squares = document.getElementsByClassName("board");
 372       for (let i = 0; i < squares.length; i++) {
 373         let square = squares.item(i);
 374         if (square.id != getSquareId(move.start))
 375           // HACK for animation:
 376           // (with positive translate, image slides "under background")
 377           square.style.zIndex = "-1";
 378       }
 379       movingPiece.style.transform =
 380         "translate(" + translation.x + "px," + translation.y + "px)";
 381       movingPiece.style.transitionDuration = "0.25s";
 382       movingPiece.style.zIndex = "3000";
 383       setTimeout(() => {
 384         for (let i = 0; i < squares.length; i++)
 385           squares.item(i).style.zIndex = "auto";
 386         movingPiece.style = {}; //required e.g. for 0-0 with KR swap
 387         callback();
 388       }, 250);
 389     },
 390     // For Analyse mode:
 391     emitFenIfAnalyze: function() {
 392       if (this.game.mode == "analyze") {
 393         let fen = this.game.fenStart;
 394         if (!!this.lastMove) {
 395           if (Array.isArray(this.lastMove)) {
 396             const L = this.lastMove.length;
 397             fen = this.lastMove[L-1].fen;
 398           }
 399           else fen = this.lastMove.fen;
 400         }
 401         this.$emit("fenchange", fen);
 402       }
 403     },
 404     clickSquare: function(square) {
 405       // Some variants make use of a single click at specific times:
 406       const move = this.vr.doClick(square);
 407       if (!!move) this.play(move);
 408     },
 409     // "light": if gotoMove() or gotoEnd()
 410     play: function(move, received, light, autoplay) {
 411       // Freeze while choices are shown:
 412       if (this.$refs["board"].choices.length > 0) return;
 413       const navigate = !move;
 414       // Forbid navigation during autoplay:
 415       if (navigate && this.autoplay && !autoplay) return;
 416       // Forbid playing outside analyze mode, except if move is received.
 417       // Sufficient condition because Board already knows which turn it is.
 418       if (
 419         this.mode != "analyze" &&
 420         !navigate &&
 421         !received &&
 422         (this.game.score != "*" || this.cursor < this.moves.length - 1)
 423       ) {
 424         return;
 425       }
 426       if (!!received) {
 427         if (this.autoplay || this.inPlay) {
 428           // Received moves while autoplaying are stacked,
 429           // and in observed games they could arrive too fast:
 430           this.stackToPlay.unshift(move);
 431           return;
 432         }
 433         this.inPlay = true;
 434         if (this.mode == "analyze") this.toggleAnalyze();
 435         if (this.cursor < this.moves.length - 1)
 436           // To play a received move, cursor must be at the end of the game:
 437           this.gotoEnd();
 438       }
 439       // The board may show some the possible moves: (TODO: bad solution)
 440       this.$refs["board"].resetCurrentAttempt();
 441       const playSubmove = (smove) => {
 442         smove.notation = this.vr.getNotation(smove);
 443         smove.unambiguous = V.GetUnambiguousNotation(smove);
 444         this.vr.play(smove);
 445         if (this.inMultimove && !!this.lastMove) {
 446           if (!Array.isArray(this.lastMove))
 447             this.lastMove = [this.lastMove, smove];
 448           else this.lastMove.push(smove);
 449         }
 450         // Is opponent (or me) in check?
 451         this.incheck = this.vr.getCheckSquares();
 452         if (this.incheck.length > 0) smove.notation += "+";
 453         if (!this.inMultimove) {
 454           // First sub-move:
 455           this.lastMove = smove;
 456           // Condition is "!navigate" but we mean "!this.autoplay"
 457           if (!navigate) {
 458             if (this.cursor < this.moves.length - 1)
 459               this.moves = this.moves.slice(0, this.cursor + 1);
 460             this.moves.push(smove);
 461           }
 462           this.inMultimove = true; //potentially
 463           this.cursor++;
 464         } else if (!navigate) {
 465           // Already in the middle of a multi-move
 466           const L = this.moves.length;
 467           if (!Array.isArray(this.moves[L-1]))
 468             this.$set(this.moves, L-1, [this.moves[L-1], smove]);
 469           else this.moves[L-1].push(smove);
 470         }
 471       };
 472       const playMove = () => {
 473         const animate = (
 474           ["all", "highlight"].includes(V.ShowMoves) &&
 475           (this.autoplay || !!received)
 476         );
 477         if (!Array.isArray(move)) move = [move];
 478         let moveIdx = 0;
 479         let self = this;
 480         const initurn = this.vr.turn;
 481         (function executeMove() {
 482           const smove = move[moveIdx++];
 483           // NOTE: condition "smove.start.x >= 0" required for Dynamo,
 484           // because second move may be empty.
 485           if (animate && smove.start.x >= 0) {
 486             self.animateMove(smove, () => {
 487               playSubmove(smove);
 488               if (moveIdx < move.length) setTimeout(executeMove, 500);
 489               else afterMove(smove, initurn);
 490             });
 491           } else {
 492             playSubmove(smove);
 493             if (moveIdx < move.length) executeMove();
 494             else afterMove(smove, initurn);
 495           }
 496         })();
 497       };
 498       const computeScore = () => {
 499         const score = this.vr.getCurrentScore();
 500         if (!navigate) {
 501           if (["1-0", "0-1"].includes(score)) {
 502             if (Array.isArray(this.lastMove)) {
 503               const L = this.lastMove.length;
 504               this.lastMove[L - 1].notation += "#";
 505             }
 506             else this.lastMove.notation += "#";
 507           }
 508         }
 509         if (score != "*" && ["analyze", "versus"].includes(this.mode)) {
 510           const message = getScoreMessage(score);
 511           // Show score on screen
 512           this.showEndgameMsg(score + " . " + this.st.tr[message]);
 513         }
 514         return score;
 515       };
 516       const afterMove = (smove, initurn) => {
 517         if (this.vr.turn != initurn) {
 518           // Turn has changed: move is complete
 519           if (!smove.fen)
 520             // NOTE: only FEN of last sub-move is required (=> setting it here)
 521             smove.fen = this.vr.getFen();
 522           this.emitFenIfAnalyze();
 523           this.inMultimove = false;
 524           this.score = computeScore();
 525           if (this.autoplay) {
 526             if (this.cursor < this.moves.length - 1)
 527               setTimeout(() => this.play(null, null, null, "autoplay"), 1000);
 528             else {
 529               this.autoplay = false;
 530               if (this.stackToPlay.length > 0)
 531                 // Move(s) arrived in-between
 532                 this.play(this.stackToPlay.pop(), "received");
 533             }
 534           }
 535           if (this.mode != "analyze" && !navigate) {
 536             if (!received) {
 537               // Post-processing (e.g. computer play).
 538               const L = this.moves.length;
 539               // NOTE: always emit the score, even in unfinished
 540               this.$emit("newmove", this.moves[L-1], { score: this.score });
 541             } else {
 542               this.inPlay = false;
 543               if (this.stackToPlay.length > 0)
 544                 // Move(s) arrived in-between
 545                 this.play(this.stackToPlay.pop(), "received");
 546             }
 547           }
 548         }
 549       };
 550       // NOTE: navigate and received are mutually exclusive
 551       if (navigate) {
 552         // The move to navigate to is necessarily full:
 553         if (this.cursor == this.moves.length - 1) return; //no more moves
 554         move = this.moves[this.cursor + 1];
 555         if (!this.autoplay) {
 556           // Just play the move:
 557           if (!Array.isArray(move)) move = [move];
 558           for (let i=0; i < move.length; i++) this.vr.play(move[i]);
 559           if (!light) {
 560             this.lastMove = move;
 561             this.incheck = this.vr.getCheckSquares();
 562             this.score = computeScore();
 563             this.emitFenIfAnalyze();
 564           }
 565           this.cursor++;
 566           return;
 567         }
 568       }
 569       playMove();
 570     },
 571     cancelCurrentMultimove: function() {
 572       const L = this.moves.length;
 573       let move = this.moves[L-1];
 574       if (!Array.isArray(move)) move = [move];
 575       for (let i = move.length - 1; i >= 0; i--) this.vr.undo(move[i]);
 576       this.moves.pop();
 577       this.cursor--;
 578       this.inMultimove = false;
 579     },
 580     cancelLastMove: function() {
 581       // The last played move was canceled (corr game)
 582       this.undo();
 583       this.moves.pop();
 584     },
 585     // "light": if gotoMove() or gotoBegin()
 586     undo: function(move, light) {
 587       // Freeze while choices are shown:
 588       if (this.$refs["board"].choices.length > 0 || this.autoplay) return;
 589       this.$refs["board"].resetCurrentAttempt();
 590       if (this.inMultimove) {
 591         this.cancelCurrentMultimove();
 592         this.incheck = this.vr.getCheckSquares();
 593       } else {
 594         if (!move) {
 595           const minCursor =
 596             this.moves.length > 0 && this.moves[0].notation == "..."
 597               ? 1
 598               : 0;
 599           if (this.cursor < minCursor) return; //no more moves
 600           move = this.moves[this.cursor];
 601         }
 602         this.$refs["board"].resetCurrentAttempt();
 603         undoMove(move, this.vr);
 604         if (light) this.cursor--;
 605         else {
 606           this.positionCursorTo(this.cursor - 1);
 607           this.incheck = this.vr.getCheckSquares();
 608           this.emitFenIfAnalyze();
 609         }
 610       }
 611     },
 612     gotoMove: function(index) {
 613       if (this.$refs["board"].choices.length > 0 || this.autoplay) return;
 614       this.$refs["board"].resetCurrentAttempt();
 615       if (this.inMultimove) this.cancelCurrentMultimove();
 616       if (index == this.cursor) return;
 617       if (index < this.cursor) {
 618         while (this.cursor > index)
 619           this.undo(null, null, "light");
 620       }
 621       else {
 622         // index > this.cursor)
 623         while (this.cursor < index)
 624           this.play(null, null, "light");
 625       }
 626       // NOTE: next line also re-assign cursor, but it's very light
 627       this.positionCursorTo(index);
 628       this.incheck = this.vr.getCheckSquares();
 629       this.emitFenIfAnalyze();
 630     },
 631     gotoBegin: function() {
 632       if (this.$refs["board"].choices.length > 0 || this.autoplay) return;
 633       this.$refs["board"].resetCurrentAttempt();
 634       if (this.inMultimove) this.cancelCurrentMultimove();
 635       const minCursor =
 636         this.moves.length > 0 && this.moves[0].notation == "..."
 637           ? 1
 638           : 0;
 639       while (this.cursor >= minCursor) this.undo(null, null, "light");
 640       this.lastMove = (minCursor == 1 ? this.moves[0] : null);
 641       this.incheck = this.vr.getCheckSquares();
 642       this.emitFenIfAnalyze();
 643     },
 644     gotoEnd: function() {
 645       if (this.$refs["board"].choices.length > 0 || this.autoplay) return;
 646       this.$refs["board"].resetCurrentAttempt();
 647       if (this.cursor == this.moves.length - 1) return;
 648       this.gotoMove(this.moves.length - 1);
 649       this.emitFenIfAnalyze();
 650     },
 651     flip: function() {
 652       if (this.$refs["board"].choices.length > 0) return;
 653       this.orientation = V.GetOppCol(this.orientation);
 654     }
 655   }
 656 };
 657 </script>
 658
 659 <style lang="sass" scoped>
 660 [type="checkbox"]#modalEog+div .card
 661   min-height: 45px
 662   max-width: 350px
 663
 664 #baseGame
 665   width: 100%
 666   &:focus
 667     outline: none
 668
 669 #gameContainer
 670   margin-left: auto
 671   margin-right: auto
 672
 673 #downloadDiv
 674   display: inline-block
 675
 676 #controls
 677   user-select: none
 678   button
 679     border: none
 680     margin: 0
 681     padding-top: 5px
 682     padding-bottom: 5px
 683
 684 p#fenAnalyze
 685   margin: 5px
 686
 687 .in-autoplay
 688   background-color: #FACF8C
 689
 690 img.inline
 691   height: 22px
 692   padding-top: 5px
 693   @media screen and (max-width: 767px)
 694     height: 18px
 695
 696 #turnIndicator
 697   text-align: center
 698   font-weight: bold
 699
 700 #boardContainer
 701   float: left
 702 // TODO: later, maybe, allow movesList of variable width
 703 // or e.g. between 250 and 350px (but more complicated)
 704
 705 #movesList
 706   width: 280px
 707   float: left
 708
 709 @media screen and (max-width: 767px)
 710   #movesList
 711     width: 100%
 712     float: none
 713     clear: both
 714 </style>