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