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