client/src/views/Game.vue

   1 <template lang="pug">
   2 main
   3   input#modalChat.modal(
   4     type="checkbox"
   5     @click="resetChatColor()"
   6   )
   7   div#chatWrap(
   8     role="dialog"
   9     data-checkbox="modalChat"
  10   )
  11     #chat.card
  12       label.modal-close(for="modalChat")
  13       #participants
  14         span {{ Object.keys(people).length + " " + st.tr["participant(s):"] }}
  15         span(
  16           v-for="p in Object.values(people)"
  17           v-if="p.name"
  18         )
  19           | {{ p.name }}
  20         span.anonymous(v-if="Object.values(people).some(p => !p.name && p.id === 0)")
  21           | + @nonymous
  22       Chat(
  23         :players="game.players"
  24         :pastChats="game.chats"
  25         :newChat="newChat"
  26         @mychat="processChat"
  27         @chatcleared="clearChat"
  28       )
  29   .row
  30     #aboveBoard.col-sm-12.col-md-9.col-md-offset-3.col-lg-10.col-lg-offset-2
  31       span.variant-cadence {{ game.cadence }}
  32       span.variant-name {{ game.vname }}
  33       span#nextGame(
  34         v-if="nextIds.length > 0"
  35         @click="showNextGame()"
  36       )
  37         | {{ st.tr["Next_g"] }}
  38       button#chatBtn.tooltip(
  39         onClick="window.doClick('modalChat')"
  40         aria-label="Chat"
  41       )
  42         img(src="/images/icons/chat.svg")
  43       #actions(v-if="game.score=='*'")
  44         button.tooltip(
  45           @click="clickDraw()"
  46           :class="{['draw-' + drawOffer]: true}"
  47           :aria-label="st.tr['Draw']"
  48         )
  49           img(src="/images/icons/draw.svg")
  50         button.tooltip(
  51           v-if="!!game.mycolor"
  52           @click="abortGame()"
  53           :aria-label="st.tr['Abort']"
  54         )
  55           img(src="/images/icons/abort.svg")
  56         button.tooltip(
  57           v-if="!!game.mycolor"
  58           @click="resign()"
  59           :aria-label="st.tr['Resign']"
  60         )
  61           img(src="/images/icons/resign.svg")
  62       button.tooltip(
  63         v-else-if="!!game.mycolor"
  64         @click="rematch()"
  65         :aria-label="st.tr['Rematch']"
  66       )
  67         img(src="/images/icons/rematch.svg")
  68       #playersInfo
  69         p
  70           span.name(:class="{connected: isConnected(0)}")
  71             | {{ game.players[0].name || "@nonymous" }}
  72           span.time(
  73             v-if="game.score=='*'"
  74             :class="{yourturn: !!vr && vr.turn == 'w'}"
  75           )
  76             span.time-left {{ virtualClocks[0][0] }}
  77             span.time-separator(v-if="!!virtualClocks[0][1]") :
  78             span.time-right(v-if="!!virtualClocks[0][1]") {{ virtualClocks[0][1] }}
  79           span.split-names -
  80           span.name(:class="{connected: isConnected(1)}")
  81             | {{ game.players[1].name || "@nonymous" }}
  82           span.time(
  83             v-if="game.score=='*'"
  84             :class="{yourturn: !!vr && vr.turn == 'b'}"
  85           )
  86             span.time-left {{ virtualClocks[1][0] }}
  87             span.time-separator(v-if="!!virtualClocks[1][1]") :
  88             span.time-right(v-if="!!virtualClocks[1][1]") {{ virtualClocks[1][1] }}
  89   BaseGame(
  90     ref="basegame"
  91     :game="game"
  92     @newmove="processMove"
  93     @gameover="gameOver"
  94   )
  95 </template>
  96
  97 <script>
  98 import BaseGame from "@/components/BaseGame.vue";
  99 import Chat from "@/components/Chat.vue";
 100 import { store } from "@/store";
 101 import { GameStorage } from "@/utils/gameStorage";
 102 import { ppt } from "@/utils/datetime";
 103 import { ajax } from "@/utils/ajax";
 104 import { extractTime } from "@/utils/timeControl";
 105 import { getRandString } from "@/utils/alea";
 106 import { processModalClick } from "@/utils/modalClick";
 107 import { getFullNotation } from "@/utils/notation";
 108 import { playMove, getFilteredMove } from "@/utils/playUndo";
 109 import { getScoreMessage } from "@/utils/scoring";
 110 import { ArrayFun } from "@/utils/array";
 111 import params from "@/parameters";
 112 export default {
 113   name: "my-game",
 114   components: {
 115     BaseGame,
 116     Chat
 117   },
 118   // gameRef: to find the game in (potentially remote) storage
 119   data: function() {
 120     return {
 121       st: store.state,
 122       gameRef: {
 123         // rid = remote (socket) ID
 124         id: "",
 125         rid: ""
 126       },
 127       game: {
 128         // Passed to BaseGame
 129         players: [{ name: "" }, { name: "" }],
 130         chats: [],
 131         rendered: false
 132       },
 133       nextIds: [],
 134       virtualClocks: [[0,0], [0,0]], //initialized with true game.clocks
 135       vr: null, //"variant rules" object initialized from FEN
 136       drawOffer: "",
 137       people: {}, //players + observers
 138       onMygames: [], //opponents (or me) on "MyGames" page
 139       lastate: undefined, //used if opponent send lastate before game is ready
 140       repeat: {}, //detect position repetition
 141       newChat: "",
 142       conn: null,
 143       roomInitialized: false,
 144       // If newmove has wrong index: ask fullgame again:
 145       askGameTime: 0,
 146       gameIsLoading: false,
 147       // If asklastate got no reply, ask again:
 148       gotLastate: false,
 149       gotMoveIdx: -1, //last move index received
 150       // If newmove got no pingback, send again:
 151       opponentGotMove: false,
 152       connexionString: "",
 153       // Related to (killing of) self multi-connects:
 154       newConnect: {},
 155       killed: {}
 156     };
 157   },
 158   watch: {
 159     $route: function(to) {
 160       this.gameRef.id = to.params["id"];
 161       this.gameRef.rid = to.query["rid"];
 162       this.loadGame();
 163     }
 164   },
 165   // NOTE: some redundant code with Hall.vue (mostly related to people array)
 166   created: function() {
 167     // Always add myself to players' list
 168     const my = this.st.user;
 169     this.$set(this.people, my.sid, { id: my.id, name: my.name });
 170     this.gameRef.id = this.$route.params["id"];
 171     // rid = remote ID to find an observed live game,
 172     // next = next corr games IDs to navigate faster
 173     // (Both might be undefined)
 174     this.gameRef.rid = this.$route.query["rid"];
 175     this.nextIds = JSON.parse(this.$route.query["next"] || "[]");
 176     // Initialize connection
 177     this.connexionString =
 178       params.socketUrl +
 179       "/?sid=" +
 180       this.st.user.sid +
 181       "&tmpId=" +
 182       getRandString() +
 183       "&page=" +
 184       encodeURIComponent(this.$route.path);
 185     this.conn = new WebSocket(this.connexionString);
 186     this.conn.onmessage = this.socketMessageListener;
 187     this.conn.onclose = this.socketCloseListener;
 188     // Socket init required before loading remote game:
 189     const socketInit = callback => {
 190       if (!!this.conn && this.conn.readyState == 1)
 191         // 1 == OPEN state
 192         callback();
 193       else
 194         // Socket not ready yet (initial loading)
 195         // NOTE: it's important to call callback without arguments,
 196         // otherwise first arg is Websocket object and loadGame fails.
 197         this.conn.onopen = () => callback();
 198     };
 199     if (!this.gameRef.rid)
 200       // Game stored locally or on server
 201       this.loadGame(null, () => socketInit(this.roomInit));
 202     else
 203       // Game stored remotely: need socket to retrieve it
 204       // NOTE: the callback "roomInit" will be lost, so we don't provide it.
 205       // --> It will be given when receiving "fullgame" socket event.
 206       socketInit(this.loadGame);
 207   },
 208   mounted: function() {
 209     document
 210       .getElementById("chatWrap")
 211       .addEventListener("click", processModalClick);
 212   },
 213   beforeDestroy: function() {
 214     this.send("disconnect");
 215   },
 216   methods: {
 217     roomInit: function() {
 218       if (!this.roomInitialized) {
 219         // Notify the room only now that I connected, because
 220         // messages might be lost otherwise (if game loading is slow)
 221         this.send("connect");
 222         this.send("pollclients");
 223         // We may ask fullgame several times if some moves are lost,
 224         // but room should be init only once:
 225         this.roomInitialized = true;
 226       }
 227     },
 228     send: function(code, obj) {
 229       if (!!this.conn)
 230         this.conn.send(JSON.stringify(Object.assign({ code: code }, obj)));
 231     },
 232     isConnected: function(index) {
 233       const player = this.game.players[index];
 234       // Is it me ?
 235       if (this.st.user.sid == player.sid || this.st.user.id == player.uid)
 236         return true;
 237       // Try to find a match in people:
 238       return (
 239         (
 240           player.sid &&
 241           Object.keys(this.people).some(sid => sid == player.sid)
 242         )
 243         ||
 244         (
 245           player.uid &&
 246           Object.values(this.people).some(p => p.id == player.uid)
 247         )
 248       );
 249     },
 250     resetChatColor: function() {
 251       // TODO: this is called twice, once on opening an once on closing
 252       document.getElementById("chatBtn").classList.remove("somethingnew");
 253     },
 254     processChat: function(chat) {
 255       this.send("newchat", { data: chat });
 256       // NOTE: anonymous chats in corr games are not stored on server (TODO?)
 257       if (this.game.type == "corr" && this.st.user.id > 0)
 258         GameStorage.update(this.gameRef.id, { chat: chat });
 259     },
 260     clearChat: function() {
 261       // Nothing more to do if game is live (chats not recorded)
 262       if (this.game.type == "corr") {
 263         if (!!this.game.mycolor)
 264           ajax("/chats", "DELETE", {gid: this.game.id});
 265         this.$set(this.game, "chats", []);
 266       }
 267     },
 268     // Notify turn after a new move (to opponent and me on MyGames page)
 269     notifyTurn: function(sid) {
 270       const player = this.people[sid];
 271       const colorIdx = this.game.players.findIndex(
 272         p => p.sid == sid || p.uid == player.id);
 273       const color = ["w","b"][colorIdx];
 274       const movesCount = this.game.moves.length;
 275       const yourTurn =
 276         (color == "w" && movesCount % 2 == 0) ||
 277         (color == "b" && movesCount % 2 == 1);
 278       this.send("turnchange", { target: sid, yourTurn: yourTurn });
 279     },
 280     showNextGame: function() {
 281       // Did I play in current game? If not, add it to nextIds list
 282       if (this.game.score == "*" && this.vr.turn == this.game.mycolor)
 283         this.nextIds.unshift(this.game.id);
 284       const nextGid = this.nextIds.pop();
 285       this.$router.push(
 286         "/game/" + nextGid + "/?next=" + JSON.stringify(this.nextIds));
 287     },
 288     rematch: function() {
 289       alert("Unimplemented yet (soon :) )");
 290       // TODO: same logic as for draw, but re-click remove rematch offer (toggle)
 291     },
 292     askGameAgain: function() {
 293       this.gameIsLoading = true;
 294       const doAskGame = () => {
 295         if (!this.gameRef.rid)
 296           // This is my game: just reload.
 297           this.loadGame();
 298         else {
 299           // Just ask fullgame again (once!), this is much simpler.
 300           // If this fails, the user could just reload page :/
 301           let self = this;
 302           (function askIfPeerConnected() {
 303             if (!!self.people[self.gameRef.rid])
 304               self.send("askfullgame", { target: self.gameRef.rid });
 305             else setTimeout(askIfPeerConnected, 1000);
 306           })();
 307         }
 308       };
 309       // Delay of at least 2s between two game requests
 310       const now = Date.now();
 311       const delay = Math.max(2000 - (now - this.askGameTime), 0);
 312       this.askGameTime = now;
 313       setTimeout(doAskGame, delay);
 314     },
 315     socketMessageListener: function(msg) {
 316       if (!this.conn) return;
 317       const data = JSON.parse(msg.data);
 318       switch (data.code) {
 319         case "pollclients":
 320           data.sockIds.forEach(sid => {
 321             if (sid != this.st.user.sid)
 322               this.send("askidentity", { target: sid });
 323           });
 324           break;
 325         case "connect":
 326           if (!this.people[data.from]) {
 327             this.newConnect[data.from] = true; //for self multi-connects tests
 328             this.send("askidentity", { target: data.from });
 329           }
 330           break;
 331         case "disconnect":
 332           this.$delete(this.people, data.from);
 333           break;
 334         case "mconnect": {
 335           // TODO: from MyGames page : send mconnect message with the list of gid (live and corr)
 336           // Either me (another tab) or opponent
 337           const sid = data.from;
 338           if (!this.onMygames.some(s => s == sid))
 339           {
 340             this.onMygames.push(sid);
 341             this.notifyTurn(sid); //TODO: this may require server ID (so, notify after receiving identity)
 342           }
 343           break;
 344           if (!this.people[sid])
 345             this.send("askidentity", { target: sid });
 346         }
 347         case "mdisconnect":
 348           ArrayFun.remove(this.onMygames, sid => sid == data.from);
 349           break;
 350         case "killed":
 351           // I logged in elsewhere:
 352           this.conn = null;
 353           alert(this.st.tr["New connexion detected: tab now offline"]);
 354           break;
 355         case "askidentity": {
 356           // Request for identification
 357           const me = {
 358             // Decompose to avoid revealing email
 359             name: this.st.user.name,
 360             sid: this.st.user.sid,
 361             id: this.st.user.id
 362           };
 363           this.send("identity", { data: me, target: data.from });
 364           break;
 365         }
 366         case "identity": {
 367           const user = data.data;
 368           this.$set(this.people, user.sid, { name: user.name, id: user.id });
 369           // If I multi-connect, kill current connexion if no mark (I'm older)
 370           if (this.newConnect[user.sid]) {
 371             if (
 372               user.id > 0 &&
 373               user.id == this.st.user.id &&
 374               user.sid != this.st.user.sid &&
 375               !this.killed[this.st.user.sid]
 376             ) {
 377                 this.send("killme", { sid: this.st.user.sid });
 378                 this.killed[this.st.user.sid] = true;
 379             }
 380             delete this.newConnect[user.sid];
 381           }
 382           if (!this.killed[this.st.user.sid]) {
 383             // Ask potentially missed last state, if opponent and I play
 384             if (
 385               !!this.game.mycolor &&
 386               this.game.type == "live" &&
 387               this.game.score == "*" &&
 388               this.game.players.some(p => p.sid == user.sid)
 389             ) {
 390               let self = this;
 391               (function askLastate() {
 392                 self.send("asklastate", { target: user.sid });
 393                 setTimeout(
 394                   () => {
 395                     // Ask until we got a reply (or opponent disconnect):
 396                     if (!self.gotLastate && !!self.people[user.sid])
 397                       askLastate();
 398                   },
 399                   1000
 400                 );
 401               })();
 402             }
 403           }
 404           break;
 405         }
 406         case "askgame":
 407           // Send current (live) game if not asked by any of the players
 408           if (
 409             this.game.type == "live" &&
 410             this.game.players.every(p => p.sid != data.from[0])
 411           ) {
 412             const myGame = {
 413               id: this.game.id,
 414               fen: this.game.fen,
 415               players: this.game.players,
 416               vid: this.game.vid,
 417               cadence: this.game.cadence,
 418               score: this.game.score,
 419               rid: this.st.user.sid //useful in Hall if I'm an observer
 420             };
 421             this.send("game", { data: myGame, target: data.from });
 422           }
 423           break;
 424         case "askfullgame":
 425           const gameToSend = Object.keys(this.game)
 426             .filter(k =>
 427               [
 428                 "id","fen","players","vid","cadence","fenStart","vname",
 429                 "moves","clocks","initime","score","drawOffer"
 430               ].includes(k))
 431             .reduce(
 432               (obj, k) => {
 433                 obj[k] = this.game[k];
 434                 return obj;
 435               },
 436               {}
 437             );
 438           this.send("fullgame", { data: gameToSend, target: data.from });
 439           break;
 440         case "fullgame":
 441           // Callback "roomInit" to poll clients only after game is loaded
 442           this.loadGame(data.data, this.roomInit);
 443           break;
 444         case "asklastate":
 445           // Sending informative last state if I played a move or score != "*"
 446           if (
 447             (this.game.moves.length > 0 && this.vr.turn != this.game.mycolor) ||
 448             this.game.score != "*" ||
 449             this.drawOffer == "sent"
 450           ) {
 451             // Send our "last state" informations to opponent
 452             const L = this.game.moves.length;
 453             const myIdx = ["w", "b"].indexOf(this.game.mycolor);
 454             const myLastate = {
 455               lastMove: L > 0 ? this.game.moves[L - 1] : undefined,
 456               addTime: L > 0 ? this.game.addTimes[L - 1] : undefined,
 457               // Since we played a move (or abort or resign),
 458               // only drawOffer=="sent" is possible
 459               drawSent: this.drawOffer == "sent",
 460               score: this.game.score,
 461               movesCount: L,
 462               initime: this.game.initime[1 - myIdx] //relevant only if I played
 463             };
 464             this.send("lastate", { data: myLastate, target: data.from });
 465           } else {
 466             this.send("lastate", { data: {nothing: true}, target: data.from });
 467           }
 468           break;
 469         case "lastate": {
 470           // Got opponent infos about last move
 471           this.gotLastate = true;
 472           if (!data.data.nothing) {
 473             this.lastate = data.data;
 474             if (this.game.rendered)
 475               // Game is rendered (Board component)
 476               this.processLastate();
 477             // Else: will be processed when game is ready
 478           }
 479           break;
 480         }
 481         case "newmove": {
 482           const movePlus = data.data;
 483           const movesCount = this.game.moves.length;
 484           if (movePlus.index > movesCount) {
 485             // This can only happen if I'm an observer and missed a move.
 486             if (this.gotMoveIdx < movePlus.index)
 487               this.gotMoveIdx = movePlus.index;
 488             if (!this.gameIsLoading) this.askGameAgain();
 489           }
 490           else {
 491             if (
 492               movePlus.index < movesCount ||
 493               this.gotMoveIdx >= movePlus.index
 494             ) {
 495               // Opponent re-send but we already have the move:
 496               // (maybe he didn't receive our pingback...)
 497               this.send("gotmove", {data: movePlus.index, target: data.from});
 498             } else {
 499               this.gotMoveIdx = movePlus.index;
 500               const receiveMyMove = (movePlus.color == this.game.mycolor);
 501               if (!receiveMyMove && !!this.game.mycolor)
 502                 // Notify opponent that I got the move:
 503                 this.send("gotmove", {data: movePlus.index, target: data.from});
 504               if (movePlus.cancelDrawOffer) {
 505                 // Opponent refuses draw
 506                 this.drawOffer = "";
 507                 // NOTE for corr games: drawOffer reset by player in turn
 508                 if (
 509                   this.game.type == "live" &&
 510                   !!this.game.mycolor &&
 511                   !receiveMyMove
 512                 ) {
 513                   GameStorage.update(this.gameRef.id, { drawOffer: "" });
 514                 }
 515               }
 516               this.$refs["basegame"].play(movePlus.move, "received", null, true);
 517               this.processMove(
 518                 movePlus.move,
 519                 {
 520                   addTime: movePlus.addTime,
 521                   receiveMyMove: receiveMyMove
 522                 }
 523               );
 524             }
 525           }
 526           break;
 527         }
 528         case "gotmove": {
 529           this.opponentGotMove = true;
 530           break;
 531         }
 532         case "resign":
 533           const score = data.side == "b" ? "1-0" : "0-1";
 534           const side = data.side == "w" ? "White" : "Black";
 535           this.gameOver(score, side + " surrender");
 536           break;
 537         case "abort":
 538           this.gameOver("?", "Stop");
 539           break;
 540         case "draw":
 541           this.gameOver("1/2", data.data);
 542           break;
 543         case "drawoffer":
 544           // NOTE: observers don't know who offered draw
 545           this.drawOffer = "received";
 546           break;
 547         case "newchat":
 548           this.newChat = data.data;
 549           if (!document.getElementById("modalChat").checked)
 550             document.getElementById("chatBtn").classList.add("somethingnew");
 551           break;
 552       }
 553     },
 554     socketCloseListener: function() {
 555       this.conn = new WebSocket(this.connexionString);
 556       this.conn.addEventListener("message", this.socketMessageListener);
 557       this.conn.addEventListener("close", this.socketCloseListener);
 558     },
 559     // lastate was received, but maybe game wasn't ready yet:
 560     processLastate: function() {
 561       const data = this.lastate;
 562       this.lastate = undefined; //security...
 563       const L = this.game.moves.length;
 564       if (data.movesCount > L) {
 565         // Just got last move from him
 566         this.$refs["basegame"].play(
 567           data.lastMove,
 568           "received",
 569           null,
 570           {addTime: data.addTime, initime: data.initime}
 571         );
 572       }
 573       if (data.drawSent) this.drawOffer = "received";
 574       if (data.score != "*") {
 575         this.drawOffer = "";
 576         if (this.game.score == "*") this.gameOver(data.score);
 577       }
 578     },
 579     clickDraw: function() {
 580       if (!this.game.mycolor) return; //I'm just spectator
 581       if (["received", "threerep"].includes(this.drawOffer)) {
 582         if (!confirm(this.st.tr["Accept draw?"])) return;
 583         const message =
 584           this.drawOffer == "received"
 585             ? "Mutual agreement"
 586             : "Three repetitions";
 587         this.send("draw", { data: message });
 588         this.gameOver("1/2", message);
 589       } else if (this.drawOffer == "") {
 590         // No effect if drawOffer == "sent"
 591         if (this.game.mycolor != this.vr.turn) {
 592           alert(this.st.tr["Draw offer only in your turn"]);
 593           return;
 594         }
 595         if (!confirm(this.st.tr["Offer draw?"])) return;
 596         this.drawOffer = "sent";
 597         this.send("drawoffer");
 598         GameStorage.update(this.gameRef.id, { drawOffer: this.game.mycolor });
 599       }
 600     },
 601     abortGame: function() {
 602       if (!this.game.mycolor || !confirm(this.st.tr["Terminate game?"])) return;
 603       this.gameOver("?", "Stop");
 604       this.send("abort");
 605     },
 606     resign: function() {
 607       if (!this.game.mycolor || !confirm(this.st.tr["Resign the game?"]))
 608         return;
 609       this.send("resign", { data: this.game.mycolor });
 610       const score = this.game.mycolor == "w" ? "0-1" : "1-0";
 611       const side = this.game.mycolor == "w" ? "White" : "Black";
 612       this.gameOver(score, side + " surrender");
 613     },
 614     // 3 cases for loading a game:
 615     //  - from indexedDB (running or completed live game I play)
 616     //  - from server (one correspondance game I play[ed] or not)
 617     //  - from remote peer (one live game I don't play, finished or not)
 618     loadGame: function(game, callback) {
 619       const afterRetrieval = async game => {
 620         const vModule = await import("@/variants/" + game.vname + ".js");
 621         window.V = vModule.VariantRules;
 622         this.vr = new V(game.fen);
 623         const gtype = game.cadence.indexOf("d") >= 0 ? "corr" : "live";
 624         const tc = extractTime(game.cadence);
 625         const myIdx = game.players.findIndex(p => {
 626           return p.sid == this.st.user.sid || p.uid == this.st.user.id;
 627         });
 628         const mycolor = [undefined, "w", "b"][myIdx + 1]; //undefined for observers
 629         if (!game.chats) game.chats = []; //live games don't have chat history
 630         if (gtype == "corr") {
 631           if (game.players[0].color == "b") {
 632             // Adopt the same convention for live and corr games: [0] = white
 633             [game.players[0], game.players[1]] = [
 634               game.players[1],
 635               game.players[0]
 636             ];
 637           }
 638           // NOTE: clocks in seconds, initime in milliseconds
 639           game.moves.sort((m1, m2) => m1.idx - m2.idx); //in case of
 640           game.clocks = [tc.mainTime, tc.mainTime];
 641           const L = game.moves.length;
 642           if (game.score == "*") {
 643             // Set clocks + initime
 644             game.initime = [0, 0];
 645             if (L >= 1) {
 646               const gameLastupdate = game.moves[L-1].played;
 647               game.initime[L % 2] = gameLastupdate;
 648               if (L >= 2) {
 649                 game.clocks[L % 2] =
 650                   tc.mainTime - (Date.now() - gameLastupdate) / 1000;
 651               }
 652             }
 653           }
 654           // Sort chat messages from newest to oldest
 655           game.chats.sort((c1, c2) => {
 656             return c2.added - c1.added;
 657           });
 658           if (myIdx >= 0 && game.score == "*" && game.chats.length > 0) {
 659             // Did a chat message arrive after my last move?
 660             let dtLastMove = 0;
 661             if (L == 1 && myIdx == 0)
 662               dtLastMove = game.moves[0].played;
 663             else if (L >= 2) {
 664               if (L % 2 == 0) {
 665                 // It's now white turn
 666                 dtLastMove = game.moves[L-1-(1-myIdx)].played;
 667               } else {
 668                 // Black turn:
 669                 dtLastMove = game.moves[L-1-myIdx].played;
 670               }
 671             }
 672             if (dtLastMove < game.chats[0].added)
 673               document.getElementById("chatBtn").classList.add("somethingnew");
 674           }
 675           // Now that we used idx and played, re-format moves as for live games
 676           game.moves = game.moves.map(m => m.squares);
 677         }
 678         if (gtype == "live" && game.clocks[0] < 0) {
 679           // Game is unstarted
 680           game.clocks = [tc.mainTime, tc.mainTime];
 681           if (game.score == "*") {
 682             game.initime[0] = Date.now();
 683             if (myIdx >= 0) {
 684               // I play in this live game; corr games don't have clocks+initime
 685               GameStorage.update(game.id, {
 686                 clocks: game.clocks,
 687                 initime: game.initime
 688               });
 689             }
 690           }
 691         }
 692         if (!!game.drawOffer) {
 693           if (game.drawOffer == "t")
 694             // Three repetitions
 695             this.drawOffer = "threerep";
 696           else {
 697             // Draw offered by any of the players:
 698             if (myIdx < 0) this.drawOffer = "received";
 699             else {
 700               // I play in this game:
 701               if (
 702                 (game.drawOffer == "w" && myIdx == 0) ||
 703                 (game.drawOffer == "b" && myIdx == 1)
 704               )
 705                 this.drawOffer = "sent";
 706               else this.drawOffer = "received";
 707             }
 708           }
 709         }
 710         this.repeat = {}; //reset: scan past moves' FEN:
 711         let repIdx = 0;
 712         let vr_tmp = new V(game.fenStart);
 713         let curTurn = "n";
 714         game.moves.forEach(m => {
 715           playMove(m, vr_tmp);
 716           const fenIdx = vr_tmp.getFen().replace(/ /g, "_");
 717           this.repeat[fenIdx] = this.repeat[fenIdx]
 718             ? this.repeat[fenIdx] + 1
 719             : 1;
 720         });
 721         if (this.repeat[repIdx] >= 3) this.drawOffer = "threerep";
 722         this.game = Object.assign(
 723           // NOTE: assign mycolor here, since BaseGame could also be VS computer
 724           {
 725             type: gtype,
 726             increment: tc.increment,
 727             mycolor: mycolor,
 728             // opponent sid not strictly required (or available), but easier
 729             // at least oppsid or oppid is available anyway:
 730             oppsid: myIdx < 0 ? undefined : game.players[1 - myIdx].sid,
 731             oppid: myIdx < 0 ? undefined : game.players[1 - myIdx].uid,
 732             addTimes: [], //used for live games
 733           },
 734           game,
 735         );
 736         if (this.gameIsLoading)
 737           // Re-load game because we missed some moves:
 738           // artificially reset BaseGame (required if moves arrived in wrong order)
 739           this.$refs["basegame"].re_setVariables();
 740         this.re_setClocks();
 741         this.$nextTick(() => {
 742           this.game.rendered = true;
 743           // Did lastate arrive before game was rendered?
 744           if (this.lastate) this.processLastate();
 745         });
 746         if (this.gameIsLoading) {
 747           this.gameIsLoading = false;
 748           if (this.gotMoveIdx >= game.moves.length)
 749             // Some moves arrived meanwhile...
 750             this.askGameAgain();
 751         }
 752         if (!!callback) callback();
 753       };
 754       if (!!game) {
 755         afterRetrieval(game);
 756         return;
 757       }
 758       if (this.gameRef.rid) {
 759         // Remote live game: forgetting about callback func... (TODO: design)
 760         this.send("askfullgame", { target: this.gameRef.rid });
 761       } else {
 762         // Local or corr game
 763         // NOTE: afterRetrieval() is never called if game not found
 764         GameStorage.get(this.gameRef.id, afterRetrieval);
 765       }
 766     },
 767     re_setClocks: function() {
 768       if (this.game.moves.length < 2 || this.game.score != "*") {
 769         // 1st move not completed yet, or game over: freeze time
 770         this.virtualClocks = this.game.clocks.map(s => ppt(s).split(':'));
 771         return;
 772       }
 773       const currentTurn = this.vr.turn;
 774       const currentMovesCount = this.game.moves.length;
 775       const colorIdx = ["w", "b"].indexOf(currentTurn);
 776       let countdown =
 777         this.game.clocks[colorIdx] -
 778         (Date.now() - this.game.initime[colorIdx]) / 1000;
 779       this.virtualClocks = [0, 1].map(i => {
 780         const removeTime =
 781           i == colorIdx ? (Date.now() - this.game.initime[colorIdx]) / 1000 : 0;
 782         return ppt(this.game.clocks[i] - removeTime).split(':');
 783       });
 784       let clockUpdate = setInterval(() => {
 785         if (
 786           countdown < 0 ||
 787           this.game.moves.length > currentMovesCount ||
 788           this.game.score != "*"
 789         ) {
 790           clearInterval(clockUpdate);
 791           if (countdown < 0)
 792             this.gameOver(
 793               currentTurn == "w" ? "0-1" : "1-0",
 794               "Time"
 795             );
 796         } else
 797           this.$set(
 798             this.virtualClocks,
 799             colorIdx,
 800             ppt(Math.max(0, --countdown)).split(':')
 801           );
 802       }, 1000);
 803     },
 804     // Update variables and storage after a move:
 805     processMove: function(move, data) {
 806       if (!data) data = {};
 807       const moveCol = this.vr.turn;
 808       const doProcessMove = () => {
 809         const colorIdx = ["w", "b"].indexOf(moveCol);
 810         const nextIdx = 1 - colorIdx;
 811         const origMovescount = this.game.moves.length;
 812         let addTime =
 813           this.game.type == "live"
 814             ? (data.addTime || 0)
 815             : undefined;
 816         if (moveCol == this.game.mycolor && !data.receiveMyMove) {
 817           if (this.drawOffer == "received")
 818             // I refuse draw
 819             this.drawOffer = "";
 820           if (this.game.type == "live" && origMovescount >= 2) {
 821             const elapsed = Date.now() - this.game.initime[colorIdx];
 822             // elapsed time is measured in milliseconds
 823             addTime = this.game.increment - elapsed / 1000;
 824           }
 825         }
 826         // Update current game object:
 827         playMove(move, this.vr);
 828 // TODO: notifyTurn: "changeturn" message
 829         this.game.moves.push(move);
 830         // (add)Time indication: useful in case of lastate infos requested
 831         if (this.game.type == "live")
 832           this.game.addTimes.push(addTime);
 833         this.game.fen = this.vr.getFen();
 834         if (this.game.type == "live") this.game.clocks[colorIdx] += addTime;
 835         // In corr games, just reset clock to mainTime:
 836         else this.game.clocks[colorIdx] = extractTime(this.game.cadence).mainTime;
 837         // data.initime is set only when I receive a "lastate" move from opponent
 838         this.game.initime[nextIdx] = data.initime || Date.now();
 839         this.re_setClocks();
 840         // If repetition detected, consider that a draw offer was received:
 841         const fenObj = this.vr.getFenForRepeat();
 842         this.repeat[fenObj] = this.repeat[fenObj] ? this.repeat[fenObj] + 1 : 1;
 843         if (this.repeat[fenObj] >= 3) this.drawOffer = "threerep";
 844         else if (this.drawOffer == "threerep") this.drawOffer = "";
 845         // Since corr games are stored at only one location, update should be
 846         // done only by one player for each move:
 847         if (!!this.game.mycolor && !data.receiveMyMove) {
 848           // NOTE: 'var' to see that variable outside this block
 849           var filtered_move = getFilteredMove(move);
 850         }
 851         if (
 852           !!this.game.mycolor &&
 853           !data.receiveMyMove &&
 854           (this.game.type == "live" || moveCol == this.game.mycolor)
 855         ) {
 856           let drawCode = "";
 857           switch (this.drawOffer) {
 858             case "threerep":
 859               drawCode = "t";
 860               break;
 861             case "sent":
 862               drawCode = this.game.mycolor;
 863               break;
 864             case "received":
 865               drawCode = V.GetOppCol(this.game.mycolor);
 866               break;
 867           }
 868           if (this.game.type == "corr") {
 869             GameStorage.update(this.gameRef.id, {
 870               fen: this.game.fen,
 871               move: {
 872                 squares: filtered_move,
 873                 played: Date.now(),
 874                 idx: origMovescount
 875               },
 876               // Code "n" for "None" to force reset (otherwise it's ignored)
 877               drawOffer: drawCode || "n"
 878             });
 879           }
 880           else {
 881             const updateStorage = () => {
 882               GameStorage.update(this.gameRef.id, {
 883                 fen: this.game.fen,
 884                 move: filtered_move,
 885                 moveIdx: origMovescount,
 886                 clocks: this.game.clocks,
 887                 initime: this.game.initime,
 888                 drawOffer: drawCode
 889               });
 890             };
 891             // The active tab can update storage immediately
 892             if (!document.hidden) updateStorage();
 893             // Small random delay otherwise
 894             else setTimeout(updateStorage, 500 + 1000 * Math.random());
 895           }
 896         }
 897         // Send move ("newmove" event) to people in the room (if our turn)
 898         if (moveCol == this.game.mycolor && !data.receiveMyMove) {
 899           const sendMove = {
 900             move: filtered_move,
 901             index: origMovescount,
 902             // color is required to check if this is my move (if several tabs opened)
 903             color: moveCol,
 904             addTime: addTime, //undefined for corr games
 905             cancelDrawOffer: this.drawOffer == ""
 906           };
 907           this.opponentGotMove = false;
 908           this.send("newmove", {data: sendMove});
 909           // If the opponent doesn't reply gotmove soon enough, re-send move:
 910           let retrySendmove = setInterval(
 911             () => {
 912               if (this.opponentGotMove) {
 913                 clearInterval(retrySendmove);
 914                 return;
 915               }
 916               let oppsid = this.game.players[nextIdx].sid;
 917               if (!oppsid) {
 918                 oppsid = Object.keys(this.people).find(
 919                   sid => this.people[sid].id == this.game.players[nextIdx].uid
 920                 );
 921               }
 922               if (!oppsid || !this.people[oppsid])
 923                 // Opponent is disconnected: he'll ask last state
 924                 clearInterval(retrySendmove);
 925               else this.send("newmove", {data: sendMove, target: oppsid});
 926             },
 927             1000
 928           );
 929         }
 930       };
 931       if (
 932         this.game.type == "corr" &&
 933         moveCol == this.game.mycolor &&
 934         !data.receiveMyMove
 935       ) {
 936         setTimeout(() => {
 937           // TODO: remplacer cette confirm box par qqch de plus discret
 938           // (et de même pour challenge accepté / refusé)
 939           if (
 940             !confirm(
 941               this.st.tr["Move played:"] +
 942                 " " +
 943                 getFullNotation(move) +
 944                 "\n" +
 945                 this.st.tr["Are you sure?"]
 946             )
 947           ) {
 948             this.$refs["basegame"].cancelLastMove();
 949             return;
 950           }
 951           doProcessMove();
 952         // Let small time to finish drawing current move attempt:
 953         }, 500);
 954       }
 955       else doProcessMove();
 956     },
 957     gameOver: function(score, scoreMsg) {
 958       this.game.score = score;
 959       this.$set(this.game, "scoreMsg", scoreMsg || getScoreMessage(score));
 960       const myIdx = this.game.players.findIndex(p => {
 961         return p.sid == this.st.user.sid || p.uid == this.st.user.id;
 962       });
 963       if (myIdx >= 0) {
 964         // OK, I play in this game
 965         GameStorage.update(this.gameRef.id, {
 966           score: score,
 967           scoreMsg: scoreMsg
 968         });
 969         // Notify the score to main Hall. TODO: only one player (currently double send)
 970         this.send("result", { gid: this.game.id, score: score });
 971       }
 972     }
 973   }
 974 };
 975 </script>
 976
 977 <style lang="sass" scoped>
 978 .connected
 979   background-color: lightgreen
 980
 981 #participants
 982   margin-left: 5px
 983
 984 .anonymous
 985   color: grey
 986   font-style: italic
 987
 988 #playersInfo > p
 989   margin: 0
 990
 991 @media screen and (min-width: 768px)
 992   #actions
 993     width: 300px
 994 @media screen and (max-width: 767px)
 995   .game
 996     width: 100%
 997
 998 #actions
 999   display: inline-block
1000   margin: 0
1001
1002 button
1003   display: inline-block
1004   margin: 0
1005   display: inline-flex
1006   img
1007     height: 24px
1008     display: flex
1009     @media screen and (max-width: 767px)
1010       height: 18px
1011
1012 @media screen and (max-width: 767px)
1013   #aboveBoard
1014     text-align: center
1015 @media screen and (min-width: 768px)
1016   #aboveBoard
1017     margin-left: 30%
1018
1019 .variant-cadence
1020   padding-right: 10px
1021
1022 .variant-name
1023   font-weight: bold
1024   padding-right: 10px
1025
1026 span#nextGame
1027   background-color: #edda99
1028   cursor: pointer
1029   display: inline-block
1030   margin-right: 10px
1031
1032 span.name
1033   font-size: 1.5rem
1034   padding: 0 3px
1035
1036 span.time
1037   font-size: 2rem
1038   display: inline-block
1039   .time-left
1040     margin-left: 10px
1041   .time-right
1042     margin-left: 5px
1043   .time-separator
1044     margin-left: 5px
1045     position: relative
1046     top: -1px
1047
1048 span.yourturn
1049   color: #831B1B
1050   .time-separator
1051     animation: blink-animation 2s steps(3, start) infinite
1052 @keyframes blink-animation
1053   to
1054     visibility: hidden
1055
1056 .split-names
1057   display: inline-block
1058   margin: 0 15px
1059
1060 #chat
1061   padding-top: 20px
1062   max-width: 767px
1063   border: none;
1064
1065 .draw-sent, .draw-sent:hover
1066   background-color: lightyellow
1067
1068 .draw-received, .draw-received:hover
1069   background-color: lightgreen
1070
1071 .draw-threerep, .draw-threerep:hover
1072   background-color: #e4d1fc
1073
1074 .somethingnew
1075   background-color: #c5fefe
1076 </style>