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
  65 // https://vchess.club/#/game/46
  66 // Bug 35eme coup blanc Rx(P)e2, d2 et aussi 18eme coup blanc Rd7, Pxe6
  67 // --> peut-être lié à prise, ou lié à getFen(), ou inMultimove pas changé car concatène à coup précédent...
  68 // TODO: also fix moves played on smartphone, annoying shift...
  69
  70 import Board from "@/components/Board.vue";
  71 import MoveList from "@/components/MoveList.vue";
  72 import params from "@/parameters";
  73 import { store } from "@/store";
  74 import { getSquareId } from "@/utils/squareId";
  75 import { getDate } from "@/utils/datetime";
  76 import { processModalClick } from "@/utils/modalClick";
  77 import { getScoreMessage } from "@/utils/scoring";
  78 import { getFullNotation } from "@/utils/notation";
  79 import { undoMove } from "@/utils/playUndo";
  80 export default {
  81   name: "my-base-game",
  82   components: {
  83     Board,
  84     MoveList
  85   },
  86   props: ["game"],
  87   data: function() {
  88     return {
  89       st: store.state,
  90       // NOTE: all following variables must be reset at the beginning of a game
  91       vr: null, //VariantRules object, game state
  92       endgameMessage: "",
  93       orientation: "w",
  94       mode: "",
  95       score: "*", //'*' means 'unfinished'
  96       moves: [],
  97       cursor: -1, //index of the move just played
  98       lastMove: null,
  99       firstMoveNumber: 0, //for printing
 100       incheck: [], //for Board
 101       inMultimove: false,
 102       autoplay: false,
 103       inPlay: false,
 104       stackToPlay: []
 105     };
 106   },
 107   computed: {
 108     turn: function() {
 109       if (!this.vr) return "";
 110       if (this.vr.showMoves != "all") {
 111         return this.st.tr[
 112           (this.vr.turn == 'w' ? "White" : "Black") + " to move"];
 113       }
 114       // Cannot flip: racing king or circular chess
 115       return (
 116         this.vr.movesCount == 0 && this.game.mycolor == "w"
 117           ? this.st.tr["It's your turn!"]
 118           : ""
 119       );
 120     },
 121     showFen: function() {
 122       return (
 123         this.mode == "analyze" &&
 124         this.$router.currentRoute.path.indexOf("/analyse") === -1
 125       );
 126     },
 127     // TODO: is it OK to pass "computed" as properties?
 128     // Also, some are seemingly not recomputed when vr is initialized.
 129     showMoves: function() {
 130       return this.game.score != "*"
 131         ? "all"
 132         : (!!this.vr ? this.vr.showMoves : "none");
 133     },
 134     showTurn: function() {
 135       return (
 136         this.game.score == '*' &&
 137         !!this.vr && (this.vr.showMoves != "all" || !this.vr.canFlip)
 138       );
 139     },
 140     canAnalyze: function() {
 141       return (
 142         this.game.mode != "analyze" &&
 143         !!this.vr && this.vr.canAnalyze
 144       );
 145     },
 146     canFlip: function() {
 147       return !!this.vr && this.vr.canFlip;
 148     },
 149     allowDownloadPGN: function() {
 150       return (
 151         this.game.score != "*" ||
 152         (!!this.vr && this.vr.showMoves == "all")
 153       );
 154     }
 155   },
 156   created: function() {
 157     if (!!this.game.fenStart) this.re_setVariables();
 158   },
 159   mounted: function() {
 160     if (!("ontouchstart" in window)) {
 161       // Desktop browser:
 162       const baseGameDiv = document.getElementById("baseGame");
 163       baseGameDiv.tabIndex = 0;
 164       baseGameDiv.addEventListener("click", this.focusBg);
 165       baseGameDiv.addEventListener("keydown", this.handleKeys);
 166       baseGameDiv.addEventListener("wheel", this.handleScroll);
 167     }
 168     document.getElementById("eogDiv")
 169       .addEventListener("click", processModalClick);
 170   },
 171   beforeDestroy: function() {
 172     // TODO: probably not required
 173     this.autoplay = false;
 174   },
 175   methods: {
 176     focusBg: function() {
 177       document.getElementById("baseGame").focus();
 178     },
 179     handleKeys: function(e) {
 180       if ([32, 37, 38, 39, 40].includes(e.keyCode)) e.preventDefault();
 181       switch (e.keyCode) {
 182         case 37:
 183           this.undo();
 184           break;
 185         case 39:
 186           this.play();
 187           break;
 188         case 38:
 189           this.gotoBegin();
 190           break;
 191         case 40:
 192           this.gotoEnd();
 193           break;
 194         case 32:
 195           this.flip();
 196           break;
 197       }
 198     },
 199     handleScroll: function(e) {
 200       e.preventDefault();
 201       if (e.deltaY < 0) this.undo();
 202       else if (e.deltaY > 0) this.play();
 203     },
 204     resetArrows: function() {
 205       // TODO: make arrows scale with board, and remove this
 206       this.$refs["board"].cancelResetArrows();
 207     },
 208     showRules: function() {
 209       // The button is here only on Game page:
 210       document.getElementById("modalRules").checked = true;
 211     },
 212     re_setVariables: function(game) {
 213       if (!game) game = this.game; //in case of...
 214       this.endgameMessage = "";
 215       // "w": default orientation for observed games
 216       this.orientation = game.mycolor || "w";
 217       this.mode = game.mode || game.type; //TODO: merge...
 218       this.moves = JSON.parse(JSON.stringify(game.moves || []));
 219       // Post-processing: decorate each move with notation and FEN
 220       this.vr = new V(game.fenStart);
 221       const parsedFen = V.ParseFen(game.fenStart);
 222       const firstMoveColor = parsedFen.turn;
 223       this.firstMoveNumber = Math.floor(parsedFen.movesCount / 2) + 1;
 224       let L = this.moves.length;
 225       if (L == 0) {
 226         this.incheck = [];
 227         this.score = "*";
 228       }
 229       this.moves.forEach((move,idx) => {
 230         // Strategy working also for multi-moves:
 231         if (!Array.isArray(move)) move = [move];
 232         const Lm = move.length;
 233         move.forEach((m,idxM) => {
 234           m.notation = this.vr.getNotation(m);
 235           m.unambiguous = V.GetUnambiguousNotation(m);
 236           this.vr.play(m);
 237           const checkSquares = this.vr.getCheckSquares();
 238           if (checkSquares.length > 0) m.notation += "+";
 239           if (idxM == Lm - 1) m.fen = this.vr.getFen();
 240           if (idx == L - 1 && idxM == Lm - 1) {
 241             this.incheck = checkSquares;
 242             this.score = this.vr.getCurrentScore();
 243             if (["1-0", "0-1"].includes(this.score)) m.notation += "#";
 244           }
 245         });
 246       });
 247       if (firstMoveColor == "b") {
 248         // 'start' & 'end' is required for Board component
 249         this.moves.unshift({
 250           notation: "...",
 251           unambiguous: "...",
 252           start: { x: -1, y: -1 },
 253           end: { x: -1, y: -1 },
 254           fen: game.fenStart
 255         });
 256         L++;
 257       }
 258       this.positionCursorTo(L - 1);
 259     },
 260     positionCursorTo: function(index) {
 261       this.cursor = index;
 262       // Note: last move in moves array might be a multi-move
 263       if (index >= 0) this.lastMove = this.moves[index];
 264       else this.lastMove = null;
 265     },
 266     toggleAnalyze: function() {
 267       if (this.mode != "analyze") {
 268         // Enter analyze mode:
 269         this.gameMode = this.mode; //was not 'analyze'
 270         this.mode = "analyze";
 271         this.gameCursor = this.cursor;
 272         this.gameMoves = JSON.parse(JSON.stringify(this.moves));
 273         document.getElementById("analyzeBtn").classList.add("active");
 274       }
 275       else {
 276         // Exit analyze mode:
 277         this.mode = this.gameMode ;
 278         this.cursor = this.gameCursor;
 279         this.moves = this.gameMoves;
 280         let fen = this.game.fenStart;
 281         if (this.cursor >= 0) {
 282           let mv = this.moves[this.cursor];
 283           if (!Array.isArray(mv)) mv = [mv];
 284           fen = mv[mv.length-1].fen;
 285         }
 286         this.vr = new V(fen);
 287         this.incheck = this.vr.getCheckSquares();
 288         if (this.cursor >= 0) this.lastMove = this.moves[this.cursor];
 289         else this.lastMove = null;
 290         document.getElementById("analyzeBtn").classList.remove("active");
 291       }
 292     },
 293     download: function() {
 294       const content = this.getPgn();
 295       // Prepare and trigger download link
 296       let downloadAnchor = document.getElementById("download");
 297       downloadAnchor.setAttribute("download", "game.pgn");
 298       downloadAnchor.href =
 299         "data:text/plain;charset=utf-8," + encodeURIComponent(content);
 300       downloadAnchor.click();
 301     },
 302     getPgn: function() {
 303       let pgn = "";
 304       pgn += '[Site "vchess.club"]\n';
 305       pgn += '[Variant "' + this.game.vname + '"]\n';
 306       const gdt = getDate(new Date(this.game.created || Date.now()));
 307       pgn += '[Date "' + gdt + '"]\n';
 308       pgn += '[White "' + this.game.players[0].name + '"]\n';
 309       pgn += '[Black "' + this.game.players[1].name + '"]\n';
 310       pgn += '[Fen "' + this.game.fenStart + '"]\n';
 311       pgn += '[Result "' + this.game.score + '"]\n';
 312       if (!!this.game.id)
 313         pgn += '[Url "' + params.serverUrl + '/game/' + this.game.id + '"]\n';
 314       if (!!this.game.cadence)
 315         pgn += '[Cadence "' + this.game.cadence + '"]\n';
 316       pgn += '\n';
 317       for (let i = 0; i < this.moves.length; i += 2) {
 318         if (i > 0) pgn += " ";
 319         // Adjust dots notation for a better display:
 320         let fullNotation = getFullNotation(this.moves[i]);
 321         if (fullNotation == "...") fullNotation = "..";
 322         pgn += (i / 2 + this.firstMoveNumber) + "." + fullNotation;
 323         if (i+1 < this.moves.length)
 324           pgn += " " + getFullNotation(this.moves[i+1]);
 325       }
 326       pgn += "\n\n";
 327       for (let i = 0; i < this.moves.length; i += 2) {
 328         const moveNumber = i / 2 + this.firstMoveNumber;
 329         // Skip "dots move", useless for machine reading:
 330         if (this.moves[i].notation != "...") {
 331           pgn += moveNumber + ".w " +
 332             getFullNotation(this.moves[i], "unambiguous") + "\n";
 333         }
 334         if (i+1 < this.moves.length) {
 335           pgn += moveNumber + ".b " +
 336             getFullNotation(this.moves[i+1], "unambiguous") + "\n";
 337         }
 338       }
 339       return pgn;
 340     },
 341     showEndgameMsg: function(message) {
 342       this.endgameMessage = message;
 343       document.getElementById("modalEog").checked = true;
 344     },
 345     runAutoplay: function() {
 346       if (this.autoplay) {
 347         this.autoplay = false;
 348         if (this.stackToPlay.length > 0)
 349           // Move(s) arrived in-between
 350           this.play(this.stackToPlay.pop(), "received");
 351       }
 352       else if (this.cursor < this.moves.length - 1) {
 353         this.autoplay = true;
 354         this.play(null, null, null, "autoplay");
 355       }
 356     },
 357     // Animate an elementary move
 358     animateMove: function(move, callback) {
 359       let startSquare = document.getElementById(getSquareId(move.start));
 360       if (!startSquare) return; //shouldn't happen but...
 361       let endSquare = document.getElementById(getSquareId(move.end));
 362       let rectStart = startSquare.getBoundingClientRect();
 363       let rectEnd = endSquare.getBoundingClientRect();
 364       let translation = {
 365         x: rectEnd.x - rectStart.x,
 366         y: rectEnd.y - rectStart.y
 367       };
 368       let movingPiece = document.querySelector(
 369         "#" + getSquareId(move.start) + " > img.piece"
 370       );
 371       // For some unknown reasons Opera get "movingPiece == null" error
 372       // TODO: is it calling 'animate()' twice ? One extra time ?
 373       if (!movingPiece) return;
 374       const squares = document.getElementsByClassName("board");
 375       for (let i = 0; i < squares.length; i++) {
 376         let square = squares.item(i);
 377         if (square.id != getSquareId(move.start))
 378           // HACK for animation:
 379           // (with positive translate, image slides "under background")
 380           square.style.zIndex = "-1";
 381       }
 382       movingPiece.style.transform =
 383         "translate(" + translation.x + "px," + translation.y + "px)";
 384       movingPiece.style.transitionDuration = "0.25s";
 385       movingPiece.style.zIndex = "3000";
 386       setTimeout(() => {
 387         for (let i = 0; i < squares.length; i++)
 388           squares.item(i).style.zIndex = "auto";
 389         movingPiece.style = {}; //required e.g. for 0-0 with KR swap
 390         callback();
 391       }, 250);
 392     },
 393     // For Analyse mode:
 394     emitFenIfAnalyze: function() {
 395       if (this.game.mode == "analyze") {
 396         let fen = this.game.fenStart;
 397         if (!!this.lastMove) {
 398           if (Array.isArray(this.lastMove)) {
 399             const L = this.lastMove.length;
 400             fen = this.lastMove[L-1].fen;
 401           }
 402           else fen = this.lastMove.fen;
 403         }
 404         this.$emit("fenchange", fen);
 405       }
 406     },
 407     clickSquare: function(square) {
 408       // Some variants make use of a single click at specific times:
 409       const move = this.vr.doClick(square);
 410       if (!!move) this.play(move);
 411     },
 412     // "light": if gotoMove() or gotoEnd()
 413     play: function(move, received, light, autoplay) {
 414       // Freeze while choices are shown:
 415       if (this.$refs["board"].choices.length > 0) return;
 416       const navigate = !move;
 417       // Forbid navigation during autoplay:
 418       if (navigate && this.autoplay && !autoplay) return;
 419       // Forbid playing outside analyze mode, except if move is received.
 420       // Sufficient condition because Board already knows which turn it is.
 421       if (
 422         this.mode != "analyze" &&
 423         !navigate &&
 424         !received &&
 425         (this.game.score != "*" || this.cursor < this.moves.length - 1)
 426       ) {
 427         return;
 428       }
 429       if (!!received) {
 430         if (this.autoplay || this.inPlay) {
 431           // Received moves while autoplaying are stacked,
 432           // and in observed games they could arrive too fast:
 433           this.stackToPlay.unshift(move);
 434           return;
 435         }
 436         this.inPlay = true;
 437         if (this.mode == "analyze") this.toggleAnalyze();
 438         if (this.cursor < this.moves.length - 1)
 439           // To play a received move, cursor must be at the end of the game:
 440           this.gotoEnd();
 441       }
 442       // The board may show some the possible moves: (TODO: bad solution)
 443       this.$refs["board"].resetCurrentAttempt();
 444       const playSubmove = (smove) => {
 445         smove.notation = this.vr.getNotation(smove);
 446         smove.unambiguous = V.GetUnambiguousNotation(smove);
 447         this.vr.play(smove);
 448         if (this.inMultimove && !!this.lastMove) {
 449           if (!Array.isArray(this.lastMove))
 450             this.lastMove = [this.lastMove, smove];
 451           else this.lastMove.push(smove);
 452         }
 453         // Is opponent (or me) in check?
 454         this.incheck = this.vr.getCheckSquares();
 455         if (this.incheck.length > 0) smove.notation += "+";
 456         if (!this.inMultimove) {
 457           // First sub-move:
 458           this.lastMove = smove;
 459           // Condition is "!navigate" but we mean "!this.autoplay"
 460           if (!navigate) {
 461             if (this.cursor < this.moves.length - 1)
 462               this.moves = this.moves.slice(0, this.cursor + 1);
 463             this.moves.push(smove);
 464           }
 465           this.inMultimove = true; //potentially
 466           this.cursor++;
 467         } else if (!navigate) {
 468           // Already in the middle of a multi-move
 469           const L = this.moves.length;
 470           if (!Array.isArray(this.moves[L-1]))
 471             this.$set(this.moves, L-1, [this.moves[L-1], smove]);
 472           else this.moves[L-1].push(smove);
 473         }
 474       };
 475       const playMove = () => {
 476         const animate = (
 477           ["all", "highlight"].includes(V.ShowMoves) &&
 478           (this.autoplay || !!received)
 479         );
 480         if (!Array.isArray(move)) move = [move];
 481         let moveIdx = 0;
 482         let self = this;
 483         const initurn = this.vr.turn;
 484         (function executeMove() {
 485           const smove = move[moveIdx++];
 486           // NOTE: condition "smove.start.x >= 0" required for Dynamo,
 487           // because second move may be empty.
 488           if (animate && smove.start.x >= 0) {
 489             self.animateMove(smove, () => {
 490               playSubmove(smove);
 491               if (moveIdx < move.length) setTimeout(executeMove, 500);
 492               else afterMove(smove, initurn);
 493             });
 494           } else {
 495             playSubmove(smove);
 496             if (moveIdx < move.length) executeMove();
 497             else afterMove(smove, initurn);
 498           }
 499         })();
 500       };
 501       const computeScore = () => {
 502         const score = this.vr.getCurrentScore();
 503         if (!navigate) {
 504           if (["1-0", "0-1"].includes(score)) {
 505             if (Array.isArray(this.lastMove)) {
 506               const L = this.lastMove.length;
 507               this.lastMove[L - 1].notation += "#";
 508             }
 509             else this.lastMove.notation += "#";
 510           }
 511         }
 512         if (score != "*" && ["analyze", "versus"].includes(this.mode)) {
 513           const message = getScoreMessage(score);
 514           // Show score on screen
 515           this.showEndgameMsg(score + " . " + this.st.tr[message]);
 516         }
 517         return score;
 518       };
 519       const afterMove = (smove, initurn) => {
 520         if (this.vr.turn != initurn) {
 521           // Turn has changed: move is complete
 522           if (!smove.fen)
 523             // NOTE: only FEN of last sub-move is required (=> setting it here)
 524             smove.fen = this.vr.getFen();
 525           this.emitFenIfAnalyze();
 526           this.inMultimove = false;
 527           this.score = computeScore();
 528           if (this.autoplay) {
 529             if (this.cursor < this.moves.length - 1)
 530               setTimeout(() => this.play(null, null, null, "autoplay"), 1000);
 531             else {
 532               this.autoplay = false;
 533               if (this.stackToPlay.length > 0)
 534                 // Move(s) arrived in-between
 535                 this.play(this.stackToPlay.pop(), "received");
 536             }
 537           }
 538           if (this.mode != "analyze" && !navigate) {
 539             if (!received) {
 540               // Post-processing (e.g. computer play).
 541               const L = this.moves.length;
 542               // NOTE: always emit the score, even in unfinished
 543               this.$emit("newmove", this.moves[L-1], { score: this.score });
 544             } else {
 545               this.inPlay = false;
 546               if (this.stackToPlay.length > 0)
 547                 // Move(s) arrived in-between
 548                 this.play(this.stackToPlay.pop(), "received");
 549             }
 550           }
 551         }
 552       };
 553       // NOTE: navigate and received are mutually exclusive
 554       if (navigate) {
 555         // The move to navigate to is necessarily full:
 556         if (this.cursor == this.moves.length - 1) return; //no more moves
 557         move = this.moves[this.cursor + 1];
 558         if (!this.autoplay) {
 559           // Just play the move:
 560           if (!Array.isArray(move)) move = [move];
 561           for (let i=0; i < move.length; i++) this.vr.play(move[i]);
 562           if (!light) {
 563             this.lastMove = move;
 564             this.incheck = this.vr.getCheckSquares();
 565             this.score = computeScore();
 566             this.emitFenIfAnalyze();
 567           }
 568           this.cursor++;
 569           return;
 570         }
 571       }
 572       playMove();
 573     },
 574     cancelCurrentMultimove: function() {
 575       const L = this.moves.length;
 576       let move = this.moves[L-1];
 577       if (!Array.isArray(move)) move = [move];
 578       for (let i = move.length - 1; i >= 0; i--) this.vr.undo(move[i]);
 579       this.moves.pop();
 580       this.cursor--;
 581       this.inMultimove = false;
 582     },
 583     cancelLastMove: function() {
 584       // The last played move was canceled (corr game)
 585       this.undo();
 586       this.moves.pop();
 587     },
 588     // "light": if gotoMove() or gotoBegin()
 589     undo: function(move, light) {
 590       // Freeze while choices are shown:
 591       if (this.$refs["board"].choices.length > 0 || this.autoplay) return;
 592       this.$refs["board"].resetCurrentAttempt();
 593       if (this.inMultimove) {
 594         this.cancelCurrentMultimove();
 595         this.incheck = this.vr.getCheckSquares();
 596       } else {
 597         if (!move) {
 598           const minCursor =
 599             this.moves.length > 0 && this.moves[0].notation == "..."
 600               ? 1
 601               : 0;
 602           if (this.cursor < minCursor) return; //no more moves
 603           move = this.moves[this.cursor];
 604         }
 605         this.$refs["board"].resetCurrentAttempt();
 606         undoMove(move, this.vr);
 607         if (light) this.cursor--;
 608         else {
 609           this.positionCursorTo(this.cursor - 1);
 610           this.incheck = this.vr.getCheckSquares();
 611           this.emitFenIfAnalyze();
 612         }
 613       }
 614     },
 615     gotoMove: function(index) {
 616       if (this.$refs["board"].choices.length > 0 || this.autoplay) return;
 617       this.$refs["board"].resetCurrentAttempt();
 618       if (this.inMultimove) this.cancelCurrentMultimove();
 619       if (index == this.cursor) return;
 620       if (index < this.cursor) {
 621         while (this.cursor > index)
 622           this.undo(null, null, "light");
 623       }
 624       else {
 625         // index > this.cursor)
 626         while (this.cursor < index)
 627           this.play(null, null, "light");
 628       }
 629       // NOTE: next line also re-assign cursor, but it's very light
 630       this.positionCursorTo(index);
 631       this.incheck = this.vr.getCheckSquares();
 632       this.emitFenIfAnalyze();
 633     },
 634     gotoBegin: function() {
 635       if (this.$refs["board"].choices.length > 0 || this.autoplay) return;
 636       this.$refs["board"].resetCurrentAttempt();
 637       if (this.inMultimove) this.cancelCurrentMultimove();
 638       const minCursor =
 639         this.moves.length > 0 && this.moves[0].notation == "..."
 640           ? 1
 641           : 0;
 642       while (this.cursor >= minCursor) this.undo(null, null, "light");
 643       this.lastMove = (minCursor == 1 ? this.moves[0] : null);
 644       this.incheck = this.vr.getCheckSquares();
 645       this.emitFenIfAnalyze();
 646     },
 647     gotoEnd: function() {
 648       if (this.$refs["board"].choices.length > 0 || this.autoplay) return;
 649       this.$refs["board"].resetCurrentAttempt();
 650       if (this.cursor == this.moves.length - 1) return;
 651       this.gotoMove(this.moves.length - 1);
 652       this.emitFenIfAnalyze();
 653     },
 654     flip: function() {
 655       if (this.$refs["board"].choices.length > 0) return;
 656       this.orientation = V.GetOppCol(this.orientation);
 657     }
 658   }
 659 };
 660 </script>
 661
 662 <style lang="sass" scoped>
 663 [type="checkbox"]#modalEog+div .card
 664   min-height: 45px
 665   max-width: 350px
 666
 667 #baseGame
 668   width: 100%
 669   &:focus
 670     outline: none
 671
 672 #gameContainer
 673   margin-left: auto
 674   margin-right: auto
 675
 676 #downloadDiv
 677   display: inline-block
 678
 679 #controls
 680   user-select: none
 681   button
 682     border: none
 683     margin: 0
 684     padding-top: 5px
 685     padding-bottom: 5px
 686
 687 p#fenAnalyze
 688   margin: 5px
 689
 690 .in-autoplay
 691   background-color: #FACF8C
 692
 693 img.inline
 694   height: 22px
 695   padding-top: 5px
 696   @media screen and (max-width: 767px)
 697     height: 18px
 698
 699 #turnIndicator
 700   text-align: center
 701   font-weight: bold
 702
 703 #boardContainer
 704   float: left
 705 // TODO: later, maybe, allow movesList of variable width
 706 // or e.g. between 250 and 350px (but more complicated)
 707
 708 #movesList
 709   width: 280px
 710   float: left
 711
 712 @media screen and (max-width: 767px)
 713   #movesList
 714     width: 100%
 715     float: none
 716     clear: both
 717 </style>