X-Git-Url: https://git.auder.net/rpsls.js?a=blobdiff_plain;f=client%2Fsrc%2Fviews%2FGame.vue;h=6a67400dd17f7f3071df507778bff92b664ef6a8;hb=3b0f26c1261db7ea06067762c0c28b6dbacf2d99;hp=151c347b83d512230a74122b8e426248621e9c31;hpb=7b626bdd29da0927354c92526fc5e03095877351;p=vchess.git

diff --git a/client/src/views/Game.vue b/client/src/views/Game.vue
index 151c347b..b941e378 100644
--- a/client/src/views/Game.vue
+++ b/client/src/views/Game.vue
@@ -1,11 +1,1287 @@
-<!-- TODO: component Game, + handle players + observers connect/disconnect
-  event = "gameconnect" ...etc
-  connect/disconnect with sid+name (ID not required); name slightly redundant but easier
-
-quand on arrive dans la partie, on poll les sids pour savoir qui est en ligne (ping)
-(éventuel échange lastate avec les connectés, pong ...etc)
-ensuite quand qqun se deco il suffit d'écouter "disconnect"
-pareil quand quelqu'un reco.
-(c'est assez rudimentaire et écoute trop de messages, mais dans un premier temps...)
-      // TODO: [in game] send move + elapsed time (in milliseconds); in case of "lastate" message too
--->
+<template lang="pug">
+main
+  input#modalChat.modal(
+    type="checkbox"
+    @click="resetChatColor()"
+  )
+  div#chatWrap(
+    role="dialog"
+    data-checkbox="modalChat"
+  )
+    .card
+      label.modal-close(for="modalChat")
+      #participants
+        span {{ Object.keys(people).length + " " + st.tr["participant(s):"] }} 
+        span(
+          v-for="p in Object.values(people)"
+          v-if="p.name"
+        )
+          | {{ p.name }} 
+        span.anonymous(v-if="Object.values(people).some(p => !p.name && p.id === 0)")
+          | + @nonymous
+      Chat(
+        ref="chatcomp"
+        :players="game.players"
+        :pastChats="game.chats"
+        :newChat="newChat"
+        @mychat="processChat"
+        @chatcleared="clearChat"
+      )
+  input#modalConfirm.modal(type="checkbox")
+  div#confirmDiv(role="dialog")
+    .card
+      .diagram(v-html="curDiag")
+      .button-group#buttonsConfirm
+        // onClick for acceptBtn: set dynamically
+        button.acceptBtn
+          span {{ st.tr["Validate"] }}
+        button.refuseBtn(@click="cancelMove()")
+          span {{ st.tr["Cancel"] }}
+  .row
+    #aboveBoard.col-sm-12.col-md-9.col-md-offset-3.col-lg-10.col-lg-offset-2
+      span.variant-cadence {{ game.cadence }}
+      span.variant-name {{ game.vname }}
+      span#nextGame(
+        v-if="nextIds.length > 0"
+        @click="showNextGame()"
+      )
+        | {{ st.tr["Next_g"] }}
+      button#chatBtn.tooltip(
+        onClick="window.doClick('modalChat')"
+        aria-label="Chat"
+      )
+        img(src="/images/icons/chat.svg")
+      #actions(v-if="game.score=='*'")
+        button.tooltip(
+          @click="clickDraw()"
+          :class="{['draw-' + drawOffer]: true}"
+          :aria-label="st.tr['Draw']"
+        )
+          img(src="/images/icons/draw.svg")
+        button.tooltip(
+          v-if="!!game.mycolor"
+          @click="abortGame()"
+          :aria-label="st.tr['Abort']"
+        )
+          img(src="/images/icons/abort.svg")
+        button.tooltip(
+          v-if="!!game.mycolor"
+          @click="resign()"
+          :aria-label="st.tr['Resign']"
+        )
+          img(src="/images/icons/resign.svg")
+      button.tooltip(
+        v-else-if="!!game.mycolor"
+        @click="rematch()"
+        :aria-label="st.tr['Rematch']"
+      )
+        img(src="/images/icons/rematch.svg")
+      #playersInfo
+        p
+          span.name(:class="{connected: isConnected(0)}")
+            | {{ game.players[0].name || "@nonymous" }}
+          span.time(
+            v-if="game.score=='*'"
+            :class="{yourturn: !!vr && vr.turn == 'w'}"
+          )
+            span.time-left {{ virtualClocks[0][0] }}
+            span.time-separator(v-if="!!virtualClocks[0][1]") :
+            span.time-right(v-if="!!virtualClocks[0][1]")
+              | {{ virtualClocks[0][1] }}
+          span.split-names -
+          span.name(:class="{connected: isConnected(1)}")
+            | {{ game.players[1].name || "@nonymous" }}
+          span.time(
+            v-if="game.score=='*'"
+            :class="{yourturn: !!vr && vr.turn == 'b'}"
+          )
+            span.time-left {{ virtualClocks[1][0] }}
+            span.time-separator(v-if="!!virtualClocks[1][1]") :
+            span.time-right(v-if="!!virtualClocks[1][1]")
+              | {{ virtualClocks[1][1] }}
+  BaseGame(
+    ref="basegame"
+    :game="game"
+    @newmove="processMove"
+  )
+</template>
+
+<script>
+import BaseGame from "@/components/BaseGame.vue";
+import Chat from "@/components/Chat.vue";
+import { store } from "@/store";
+import { GameStorage } from "@/utils/gameStorage";
+import { ppt } from "@/utils/datetime";
+import { ajax } from "@/utils/ajax";
+import { extractTime } from "@/utils/timeControl";
+import { getRandString } from "@/utils/alea";
+import { getScoreMessage } from "@/utils/scoring";
+import { getFullNotation } from "@/utils/notation";
+import { getDiagram } from "@/utils/printDiagram";
+import { processModalClick } from "@/utils/modalClick";
+import { playMove, getFilteredMove } from "@/utils/playUndo";
+import { ArrayFun } from "@/utils/array";
+import params from "@/parameters";
+export default {
+  name: "my-game",
+  components: {
+    BaseGame,
+    Chat
+  },
+  data: function() {
+    return {
+      st: store.state,
+      gameRef: {
+        // rid = remote (socket) ID
+        id: "",
+        rid: ""
+      },
+      nextIds: [],
+      game: {}, //passed to BaseGame
+      // virtualClocks will be initialized from true game.clocks
+      virtualClocks: [],
+      vr: null, //"variant rules" object initialized from FEN
+      drawOffer: "",
+      people: {}, //players + observers
+      onMygames: [], //opponents (or me) on "MyGames" page
+      lastate: undefined, //used if opponent send lastate before game is ready
+      repeat: {}, //detect position repetition
+      curDiag: "", //for corr moves confirmation
+      newChat: "",
+      conn: null,
+      roomInitialized: false,
+      // If newmove has wrong index: ask fullgame again:
+      askGameTime: 0,
+      gameIsLoading: false,
+      // If asklastate got no reply, ask again:
+      gotLastate: false,
+      gotMoveIdx: -1, //last move index received
+      // If newmove got no pingback, send again:
+      opponentGotMove: false,
+      connexionString: "",
+      // Intervals from setInterval():
+      // TODO: limit them to e.g. 3 retries ?!
+      askIfPeerConnected: null,
+      askLastate: null,
+      retrySendmove: null,
+      clockUpdate: null,
+      // Related to (killing of) self multi-connects:
+      newConnect: {},
+      killed: {}
+    };
+  },
+  watch: {
+    $route: function(to, from) {
+      if (from.params["id"] != to.params["id"]) {
+        // Change everything:
+        this.cleanBeforeDestroy();
+        let boardDiv = document.querySelector(".game");
+        if (!!boardDiv)
+          // In case of incomplete information variant:
+          boardDiv.style.visibility = "hidden";
+        this.atCreation();
+      } else {
+        // Same game ID
+        this.gameRef.id = to.params["id"];
+        this.gameRef.rid = to.query["rid"];
+        this.nextIds = JSON.parse(this.$route.query["next"] || "[]");
+        this.loadGame();
+      }
+    }
+  },
+  // NOTE: some redundant code with Hall.vue (mostly related to people array)
+  created: function() {
+    this.atCreation();
+  },
+  mounted: function() {
+    document
+      .getElementById("chatWrap")
+      .addEventListener("click", processModalClick);
+    if ("ontouchstart" in window) {
+      // Disable tooltips on smartphones:
+      document.getElementsByClassName("tooltip").forEach(elt => {
+        elt.classList.remove("tooltip");
+      });
+    }
+  },
+  beforeDestroy: function() {
+    this.cleanBeforeDestroy();
+  },
+  methods: {
+    atCreation: function() {
+      // 0] (Re)Set variables
+      this.gameRef.id = this.$route.params["id"];
+      // rid = remote ID to find an observed live game,
+      // next = next corr games IDs to navigate faster
+      // (Both might be undefined)
+      this.gameRef.rid = this.$route.query["rid"];
+      this.nextIds = JSON.parse(this.$route.query["next"] || "[]");
+      // Always add myself to players' list
+      const my = this.st.user;
+      this.$set(this.people, my.sid, { id: my.id, name: my.name });
+      this.game = {
+        players: [{ name: "" }, { name: "" }],
+        chats: [],
+        rendered: false
+      };
+      let chatComp = this.$refs["chatcomp"];
+      if (!!chatComp) chatComp.chats = [];
+      this.virtualClocks = [[0,0], [0,0]];
+      this.vr = null;
+      this.drawOffer = "";
+      this.onMygames = [];
+      this.lastate = undefined;
+      this.newChat = "";
+      this.roomInitialized = false;
+      this.askGameTime = 0;
+      this.gameIsLoading = false;
+      this.gotLastate = false;
+      this.gotMoveIdx = -1;
+      this.opponentGotMove = false;
+      this.askIfPeerConnected = null;
+      this.askLastate = null;
+      this.retrySendmove = null;
+      this.clockUpdate = null;
+      this.newConnect = {};
+      this.killed = {};
+      // 1] Initialize connection
+      this.connexionString =
+        params.socketUrl +
+        "/?sid=" +
+        this.st.user.sid +
+        "&tmpId=" +
+        getRandString() +
+        "&page=" +
+        // Discard potential "/?next=[...]" for page indication:
+        encodeURIComponent(this.$route.path.match(/\/game\/[a-zA-Z0-9]+/)[0]);
+      this.conn = new WebSocket(this.connexionString);
+      this.conn.onmessage = this.socketMessageListener;
+      this.conn.onclose = this.socketCloseListener;
+      // Socket init required before loading remote game:
+      const socketInit = callback => {
+        if (!!this.conn && this.conn.readyState == 1)
+          // 1 == OPEN state
+          callback();
+        else
+          // Socket not ready yet (initial loading)
+          // NOTE: it's important to call callback without arguments,
+          // otherwise first arg is Websocket object and loadGame fails.
+          this.conn.onopen = () => callback();
+      };
+      if (!this.gameRef.rid)
+        // Game stored locally or on server
+        this.loadGame(null, () => socketInit(this.roomInit));
+      else
+        // Game stored remotely: need socket to retrieve it
+        // NOTE: the callback "roomInit" will be lost, so we don't provide it.
+        // --> It will be given when receiving "fullgame" socket event.
+        socketInit(this.loadGame);
+    },
+    cleanBeforeDestroy: function() {
+      if (!!this.askIfPeerConnected)
+        clearInterval(this.askIfPeerConnected);
+      if (!!this.askLastate)
+        clearInterval(this.askLastate);
+      if (!!this.retrySendmove)
+        clearInterval(this.retrySendmove);
+      if (!!this.clockUpdate)
+        clearInterval(this.clockUpdate);
+      this.send("disconnect");
+    },
+    roomInit: function() {
+      if (!this.roomInitialized) {
+        // Notify the room only now that I connected, because
+        // messages might be lost otherwise (if game loading is slow)
+        this.send("connect");
+        this.send("pollclients");
+        // We may ask fullgame several times if some moves are lost,
+        // but room should be init only once:
+        this.roomInitialized = true;
+      }
+    },
+    send: function(code, obj) {
+      if (!!this.conn)
+        this.conn.send(JSON.stringify(Object.assign({ code: code }, obj)));
+    },
+    isConnected: function(index) {
+      const player = this.game.players[index];
+      // Is it me ?
+      if (this.st.user.sid == player.sid || this.st.user.id == player.uid)
+        // Still have to check for name (because of potential multi-accounts
+        // on same browser, although this should be rare...)
+        return (!this.st.user.name || this.st.user.name == player.name);
+      // Try to find a match in people:
+      return (
+        (
+          player.sid &&
+          Object.keys(this.people).some(sid => sid == player.sid)
+        )
+        ||
+        (
+          player.uid &&
+          Object.values(this.people).some(p => p.id == player.uid)
+        )
+      );
+    },
+    resetChatColor: function() {
+      // TODO: this is called twice, once on opening an once on closing
+      document.getElementById("chatBtn").classList.remove("somethingnew");
+    },
+    processChat: function(chat) {
+      this.send("newchat", { data: chat });
+      // NOTE: anonymous chats in corr games are not stored on server (TODO?)
+      if (this.game.type == "corr" && this.st.user.id > 0)
+        this.updateCorrGame({ chat: chat });
+    },
+    clearChat: function() {
+      // Nothing more to do if game is live (chats not recorded)
+      if (this.game.type == "corr") {
+        if (!!this.game.mycolor)
+          ajax("/chats", "DELETE", {gid: this.game.id});
+        this.$set(this.game, "chats", []);
+      }
+    },
+    // Notify turn after a new move (to opponent and me on MyGames page)
+    notifyTurn: function(sid) {
+      const player = this.people[sid];
+      const colorIdx = this.game.players.findIndex(
+        p => p.sid == sid || p.uid == player.id);
+      const color = ["w","b"][colorIdx];
+      const movesCount = this.game.moves.length;
+      const yourTurn =
+        (color == "w" && movesCount % 2 == 0) ||
+        (color == "b" && movesCount % 2 == 1);
+      this.send("turnchange", { target: sid, yourTurn: yourTurn });
+    },
+    showNextGame: function() {
+      // Did I play in current game? If not, add it to nextIds list
+      if (this.game.score == "*" && this.vr.turn == this.game.mycolor)
+        this.nextIds.unshift(this.game.id);
+      const nextGid = this.nextIds.pop();
+      this.$router.push(
+        "/game/" + nextGid + "/?next=" + JSON.stringify(this.nextIds));
+    },
+    rematch: function() {
+      alert("Unimplemented yet (soon :) )");
+      // TODO: same logic as for draw, but re-click remove rematch offer (toggle)
+    },
+    askGameAgain: function() {
+      this.gameIsLoading = true;
+      const currentUrl = document.location.href;
+      const doAskGame = () => {
+        if (currentUrl != document.location.href) return; //page change
+        if (!this.gameRef.rid)
+          // This is my game: just reload.
+          this.loadGame();
+        else {
+          // Just ask fullgame again (once!), this is much simpler.
+          // If this fails, the user could just reload page :/
+          this.send("askfullgame", { target: this.gameRef.rid });
+          this.askIfPeerConnected = setInterval(
+            () => {
+              if (
+                !!this.people[this.gameRef.rid] &&
+                currentUrl != document.location.href
+              ) {
+                this.send("askfullgame", { target: this.gameRef.rid });
+                clearInterval(this.askIfPeerConnected);
+              }
+            },
+            1000
+          );
+        }
+      };
+      // Delay of at least 2s between two game requests
+      const now = Date.now();
+      const delay = Math.max(2000 - (now - this.askGameTime), 0);
+      this.askGameTime = now;
+      setTimeout(doAskGame, delay);
+    },
+    socketMessageListener: function(msg) {
+      if (!this.conn) return;
+      const data = JSON.parse(msg.data);
+      switch (data.code) {
+        case "pollclients":
+          data.sockIds.forEach(sid => {
+            if (sid != this.st.user.sid)
+              this.send("askidentity", { target: sid });
+          });
+          break;
+        case "connect":
+          if (!this.people[data.from]) {
+            this.newConnect[data.from] = true; //for self multi-connects tests
+            this.send("askidentity", { target: data.from });
+          }
+          break;
+        case "disconnect":
+          this.$delete(this.people, data.from);
+          break;
+        case "mconnect": {
+          // TODO: from MyGames page : send mconnect message with the list of gid (live and corr)
+          // Either me (another tab) or opponent
+          const sid = data.from;
+          if (!this.onMygames.some(s => s == sid))
+          {
+            this.onMygames.push(sid);
+            this.notifyTurn(sid); //TODO: this may require server ID (so, notify after receiving identity)
+          }
+          break;
+          if (!this.people[sid])
+            this.send("askidentity", { target: sid });
+        }
+        case "mdisconnect":
+          ArrayFun.remove(this.onMygames, sid => sid == data.from);
+          break;
+        case "killed":
+          // I logged in elsewhere:
+          this.conn = null;
+          alert(this.st.tr["New connexion detected: tab now offline"]);
+          break;
+        case "askidentity": {
+          // Request for identification
+          const me = {
+            // Decompose to avoid revealing email
+            name: this.st.user.name,
+            sid: this.st.user.sid,
+            id: this.st.user.id
+          };
+          this.send("identity", { data: me, target: data.from });
+          break;
+        }
+        case "identity": {
+          const user = data.data;
+          this.$set(this.people, user.sid, { name: user.name, id: user.id });
+          // If I multi-connect, kill current connexion if no mark (I'm older)
+          if (this.newConnect[user.sid]) {
+            if (
+              user.id > 0 &&
+              user.id == this.st.user.id &&
+              user.sid != this.st.user.sid &&
+              !this.killed[this.st.user.sid]
+            ) {
+                this.send("killme", { sid: this.st.user.sid });
+                this.killed[this.st.user.sid] = true;
+            }
+            delete this.newConnect[user.sid];
+          }
+          if (!this.killed[this.st.user.sid]) {
+            // Ask potentially missed last state, if opponent and I play
+            if (
+              !!this.game.mycolor &&
+              this.game.type == "live" &&
+              this.game.score == "*" &&
+              this.game.players.some(p => p.sid == user.sid)
+            ) {
+              this.send("asklastate", { target: user.sid });
+              this.askLastate = setInterval(
+                () => {
+                  // Ask until we got a reply (or opponent disconnect):
+                  if (!this.gotLastate && !!this.people[user.sid])
+                    this.send("asklastate", { target: user.sid });
+                  else
+                    clearInterval(this.askLastate);
+                },
+                1000
+              );
+            }
+          }
+          break;
+        }
+        case "askgame":
+          // Send current (live) game if not asked by any of the players
+          if (
+            this.game.type == "live" &&
+            this.game.players.every(p => p.sid != data.from[0])
+          ) {
+            const myGame = {
+              id: this.game.id,
+              fen: this.game.fen,
+              players: this.game.players,
+              vid: this.game.vid,
+              cadence: this.game.cadence,
+              score: this.game.score,
+              rid: this.st.user.sid //useful in Hall if I'm an observer
+            };
+            this.send("game", { data: myGame, target: data.from });
+          }
+          break;
+        case "askfullgame":
+          const gameToSend = Object.keys(this.game)
+            .filter(k =>
+              [
+                "id","fen","players","vid","cadence","fenStart","vname",
+                "moves","clocks","initime","score","drawOffer"
+              ].includes(k))
+            .reduce(
+              (obj, k) => {
+                obj[k] = this.game[k];
+                return obj;
+              },
+              {}
+            );
+          this.send("fullgame", { data: gameToSend, target: data.from });
+          break;
+        case "fullgame":
+          // Callback "roomInit" to poll clients only after game is loaded
+          this.loadGame(data.data, this.roomInit);
+          break;
+        case "asklastate":
+          // Sending informative last state if I played a move or score != "*"
+          if (
+            (this.game.moves.length > 0 && this.vr.turn != this.game.mycolor) ||
+            this.game.score != "*" ||
+            this.drawOffer == "sent"
+          ) {
+            // Send our "last state" informations to opponent
+            const L = this.game.moves.length;
+            const myIdx = ["w", "b"].indexOf(this.game.mycolor);
+            const myLastate = {
+              lastMove: L > 0 ? this.game.moves[L - 1] : undefined,
+              addTime: L > 0 ? this.game.addTimes[L - 1] : undefined,
+              // Since we played a move (or abort or resign),
+              // only drawOffer=="sent" is possible
+              drawSent: this.drawOffer == "sent",
+              score: this.game.score,
+              movesCount: L,
+              initime: this.game.initime[1 - myIdx] //relevant only if I played
+            };
+            this.send("lastate", { data: myLastate, target: data.from });
+          } else {
+            this.send("lastate", { data: {nothing: true}, target: data.from });
+          }
+          break;
+        case "lastate": {
+          // Got opponent infos about last move
+          this.gotLastate = true;
+          if (!data.data.nothing) {
+            this.lastate = data.data;
+            if (this.game.rendered)
+              // Game is rendered (Board component)
+              this.processLastate();
+            // Else: will be processed when game is ready
+          }
+          break;
+        }
+        case "newmove": {
+          const movePlus = data.data;
+          const movesCount = this.game.moves.length;
+          if (movePlus.index > movesCount) {
+            // This can only happen if I'm an observer and missed a move.
+            if (this.gotMoveIdx < movePlus.index)
+              this.gotMoveIdx = movePlus.index;
+            if (!this.gameIsLoading) this.askGameAgain();
+          }
+          else {
+            if (
+              movePlus.index < movesCount ||
+              this.gotMoveIdx >= movePlus.index
+            ) {
+              // Opponent re-send but we already have the move:
+              // (maybe he didn't receive our pingback...)
+              this.send("gotmove", {data: movePlus.index, target: data.from});
+            } else {
+              this.gotMoveIdx = movePlus.index;
+              const receiveMyMove = (movePlus.color == this.game.mycolor);
+              if (!receiveMyMove && !!this.game.mycolor)
+                // Notify opponent that I got the move:
+                this.send("gotmove", {data: movePlus.index, target: data.from});
+              if (movePlus.cancelDrawOffer) {
+                // Opponent refuses draw
+                this.drawOffer = "";
+                // NOTE for corr games: drawOffer reset by player in turn
+                if (
+                  this.game.type == "live" &&
+                  !!this.game.mycolor &&
+                  !receiveMyMove
+                ) {
+                  GameStorage.update(this.gameRef.id, { drawOffer: "" });
+                }
+              }
+              this.$refs["basegame"].play(movePlus.move, "received", null, true);
+              this.processMove(
+                movePlus.move,
+                {
+                  addTime: movePlus.addTime,
+                  receiveMyMove: receiveMyMove
+                }
+              );
+            }
+          }
+          break;
+        }
+        case "gotmove": {
+          this.opponentGotMove = true;
+          break;
+        }
+        case "resign":
+          const score = data.side == "b" ? "1-0" : "0-1";
+          const side = data.side == "w" ? "White" : "Black";
+          this.gameOver(score, side + " surrender");
+          break;
+        case "abort":
+          this.gameOver("?", "Stop");
+          break;
+        case "draw":
+          this.gameOver("1/2", data.data);
+          break;
+        case "drawoffer":
+          // NOTE: observers don't know who offered draw
+          this.drawOffer = "received";
+          break;
+        case "newchat":
+          this.newChat = data.data;
+          if (!document.getElementById("modalChat").checked)
+            document.getElementById("chatBtn").classList.add("somethingnew");
+          break;
+      }
+    },
+    socketCloseListener: function() {
+      this.conn = new WebSocket(this.connexionString);
+      this.conn.addEventListener("message", this.socketMessageListener);
+      this.conn.addEventListener("close", this.socketCloseListener);
+    },
+    updateCorrGame: function(obj, callback) {
+      ajax(
+        "/games",
+        "PUT",
+        {
+          gid: this.gameRef.id,
+          newObj: obj
+        },
+        () => {
+          if (!!callback) callback();
+        }
+      );
+    },
+    // lastate was received, but maybe game wasn't ready yet:
+    processLastate: function() {
+      const data = this.lastate;
+      this.lastate = undefined; //security...
+      const L = this.game.moves.length;
+      if (data.movesCount > L) {
+        // Just got last move from him
+        this.$refs["basegame"].play(
+          data.lastMove,
+          "received",
+          null,
+          {addTime: data.addTime, initime: data.initime}
+        );
+      }
+      if (data.drawSent) this.drawOffer = "received";
+      if (data.score != "*") {
+        this.drawOffer = "";
+        if (this.game.score == "*")
+          // TODO: also pass scoreMsg in lastate
+          this.gameOver(data.score);
+      }
+    },
+    clickDraw: function() {
+      if (!this.game.mycolor) return; //I'm just spectator
+      if (["received", "threerep"].includes(this.drawOffer)) {
+        if (!confirm(this.st.tr["Accept draw?"])) return;
+        const message =
+          this.drawOffer == "received"
+            ? "Mutual agreement"
+            : "Three repetitions";
+        this.send("draw", { data: message });
+        this.gameOver("1/2", message);
+      } else if (this.drawOffer == "") {
+        // No effect if drawOffer == "sent"
+        if (this.game.mycolor != this.vr.turn) {
+          alert(this.st.tr["Draw offer only in your turn"]);
+          return;
+        }
+        if (!confirm(this.st.tr["Offer draw?"])) return;
+        this.drawOffer = "sent";
+        this.send("drawoffer");
+        if (this.game.type == "live") {
+          GameStorage.update(
+            this.gameRef.id,
+            { drawOffer: this.game.mycolor }
+          );
+        } else this.updateCorrGame({ drawOffer: this.game.mycolor });
+      }
+    },
+    abortGame: function() {
+      if (!this.game.mycolor || !confirm(this.st.tr["Terminate game?"])) return;
+      this.gameOver("?", "Stop");
+      this.send("abort");
+    },
+    resign: function() {
+      if (!this.game.mycolor || !confirm(this.st.tr["Resign the game?"]))
+        return;
+      this.send("resign", { data: this.game.mycolor });
+      const score = this.game.mycolor == "w" ? "0-1" : "1-0";
+      const side = this.game.mycolor == "w" ? "White" : "Black";
+      this.gameOver(score, side + " surrender");
+    },
+    // 3 cases for loading a game:
+    //  - from indexedDB (running or completed live game I play)
+    //  - from server (one correspondance game I play[ed] or not)
+    //  - from remote peer (one live game I don't play, finished or not)
+    loadGame: function(game, callback) {
+      const afterRetrieval = async game => {
+        const vModule = await import("@/variants/" + game.vname + ".js");
+        window.V = vModule.VariantRules;
+        this.vr = new V(game.fen);
+        const gtype = game.cadence.indexOf("d") >= 0 ? "corr" : "live";
+        const tc = extractTime(game.cadence);
+        const myIdx = game.players.findIndex(p => {
+          return p.sid == this.st.user.sid || p.uid == this.st.user.id;
+        });
+        const mycolor = [undefined, "w", "b"][myIdx + 1]; //undefined for observers
+        if (!game.chats) game.chats = []; //live games don't have chat history
+        if (gtype == "corr") {
+          if (game.players[0].color == "b") {
+            // Adopt the same convention for live and corr games: [0] = white
+            [game.players[0], game.players[1]] = [
+              game.players[1],
+              game.players[0]
+            ];
+          }
+          // NOTE: clocks in seconds, initime in milliseconds
+          game.moves.sort((m1, m2) => m1.idx - m2.idx); //in case of
+          game.clocks = [tc.mainTime, tc.mainTime];
+          const L = game.moves.length;
+          if (game.score == "*") {
+            // Set clocks + initime
+            game.initime = [0, 0];
+            if (L >= 1) {
+              const gameLastupdate = game.moves[L-1].played;
+              game.initime[L % 2] = gameLastupdate;
+              if (L >= 2) {
+                game.clocks[L % 2] =
+                  tc.mainTime - (Date.now() - gameLastupdate) / 1000;
+              }
+            }
+          }
+          // Sort chat messages from newest to oldest
+          game.chats.sort((c1, c2) => {
+            return c2.added - c1.added;
+          });
+          if (myIdx >= 0 && game.score == "*" && game.chats.length > 0) {
+            // Did a chat message arrive after my last move?
+            let dtLastMove = 0;
+            if (L == 1 && myIdx == 0)
+              dtLastMove = game.moves[0].played;
+            else if (L >= 2) {
+              if (L % 2 == 0) {
+                // It's now white turn
+                dtLastMove = game.moves[L-1-(1-myIdx)].played;
+              } else {
+                // Black turn:
+                dtLastMove = game.moves[L-1-myIdx].played;
+              }
+            }
+            if (dtLastMove < game.chats[0].added)
+              document.getElementById("chatBtn").classList.add("somethingnew");
+          }
+          // Now that we used idx and played, re-format moves as for live games
+          game.moves = game.moves.map(m => m.squares);
+        }
+        if (gtype == "live" && game.clocks[0] < 0) {
+          // Game is unstarted
+          game.clocks = [tc.mainTime, tc.mainTime];
+          if (game.score == "*") {
+            game.initime[0] = Date.now();
+            if (myIdx >= 0) {
+              // I play in this live game; corr games don't have clocks+initime
+              GameStorage.update(game.id, {
+                clocks: game.clocks,
+                initime: game.initime
+              });
+            }
+          }
+        }
+        if (!!game.drawOffer) {
+          if (game.drawOffer == "t")
+            // Three repetitions
+            this.drawOffer = "threerep";
+          else {
+            // Draw offered by any of the players:
+            if (myIdx < 0) this.drawOffer = "received";
+            else {
+              // I play in this game:
+              if (
+                (game.drawOffer == "w" && myIdx == 0) ||
+                (game.drawOffer == "b" && myIdx == 1)
+              )
+                this.drawOffer = "sent";
+              else this.drawOffer = "received";
+            }
+          }
+        }
+        this.repeat = {}; //reset: scan past moves' FEN:
+        let repIdx = 0;
+        let vr_tmp = new V(game.fenStart);
+        let curTurn = "n";
+        game.moves.forEach(m => {
+          playMove(m, vr_tmp);
+          const fenIdx = vr_tmp.getFen().replace(/ /g, "_");
+          this.repeat[fenIdx] = this.repeat[fenIdx]
+            ? this.repeat[fenIdx] + 1
+            : 1;
+        });
+        if (this.repeat[repIdx] >= 3) this.drawOffer = "threerep";
+        this.game = Object.assign(
+          // NOTE: assign mycolor here, since BaseGame could also be VS computer
+          {
+            type: gtype,
+            increment: tc.increment,
+            mycolor: mycolor,
+            // opponent sid not strictly required (or available), but easier
+            // at least oppsid or oppid is available anyway:
+            oppsid: myIdx < 0 ? undefined : game.players[1 - myIdx].sid,
+            oppid: myIdx < 0 ? undefined : game.players[1 - myIdx].uid,
+            addTimes: [], //used for live games
+          },
+          game,
+        );
+        if (this.gameIsLoading)
+          // Re-load game because we missed some moves:
+          // artificially reset BaseGame (required if moves arrived in wrong order)
+          this.$refs["basegame"].re_setVariables();
+        else {
+          // Initial loading:
+          this.gotMoveIdx = game.moves.length - 1;
+          // If we arrive here after 'nextGame' action, the board might be hidden
+          let boardDiv = document.querySelector(".game");
+          if (!!boardDiv && boardDiv.style.visibility == "hidden")
+            boardDiv.style.visibility = "visible";
+        }
+        this.re_setClocks();
+        this.$nextTick(() => {
+          this.game.rendered = true;
+          // Did lastate arrive before game was rendered?
+          if (this.lastate) this.processLastate();
+        });
+        if (this.gameIsLoading) {
+          this.gameIsLoading = false;
+          if (this.gotMoveIdx >= game.moves.length)
+            // Some moves arrived meanwhile...
+            this.askGameAgain();
+        }
+        if (!!callback) callback();
+      };
+      if (!!game) {
+        afterRetrieval(game);
+        return;
+      }
+      if (this.gameRef.rid) {
+        // Remote live game: forgetting about callback func... (TODO: design)
+        this.send("askfullgame", { target: this.gameRef.rid });
+      } else {
+        // Local or corr game on server.
+        // NOTE: afterRetrieval() is never called if game not found
+        const gid = this.gameRef.id;
+        if (Number.isInteger(gid) || !isNaN(parseInt(gid))) {
+          // corr games identifiers are integers
+          ajax("/games", "GET", { gid: gid }, res => {
+            let g = res.game;
+            g.moves.forEach(m => {
+              m.squares = JSON.parse(m.squares);
+            });
+            afterRetrieval(g);
+          });
+        }
+        else
+          // Local game
+          GameStorage.get(this.gameRef.id, afterRetrieval);
+      }
+    },
+    re_setClocks: function() {
+      if (this.game.moves.length < 2 || this.game.score != "*") {
+        // 1st move not completed yet, or game over: freeze time
+        this.virtualClocks = this.game.clocks.map(s => ppt(s).split(':'));
+        return;
+      }
+      clearInterval(this.clockUpdate);
+      const currentTurn = this.vr.turn;
+      const currentMovesCount = this.game.moves.length;
+      const colorIdx = ["w", "b"].indexOf(currentTurn);
+      let countdown =
+        this.game.clocks[colorIdx] -
+        (Date.now() - this.game.initime[colorIdx]) / 1000;
+      this.virtualClocks = [0, 1].map(i => {
+        const removeTime =
+          i == colorIdx ? (Date.now() - this.game.initime[colorIdx]) / 1000 : 0;
+        return ppt(this.game.clocks[i] - removeTime).split(':');
+      });
+      this.clockUpdate = setInterval(() => {
+        if (
+          countdown < 0 ||
+          this.game.moves.length > currentMovesCount ||
+          this.game.score != "*"
+        ) {
+          clearInterval(this.clockUpdate);
+          if (countdown < 0)
+            this.gameOver(
+              currentTurn == "w" ? "0-1" : "1-0",
+              "Time"
+            );
+        } else
+          this.$set(
+            this.virtualClocks,
+            colorIdx,
+            ppt(Math.max(0, --countdown)).split(':')
+          );
+      }, 1000);
+    },
+    // Update variables and storage after a move:
+    processMove: function(move, data) {
+      if (!data) data = {};
+      const moveCol = this.vr.turn;
+      const doProcessMove = () => {
+        const colorIdx = ["w", "b"].indexOf(moveCol);
+        const nextIdx = 1 - colorIdx;
+        const origMovescount = this.game.moves.length;
+        let addTime =
+          this.game.type == "live"
+            ? (data.addTime || 0)
+            : undefined;
+        if (moveCol == this.game.mycolor && !data.receiveMyMove) {
+          if (this.drawOffer == "received")
+            // I refuse draw
+            this.drawOffer = "";
+          if (this.game.type == "live" && origMovescount >= 2) {
+            const elapsed = Date.now() - this.game.initime[colorIdx];
+            // elapsed time is measured in milliseconds
+            addTime = this.game.increment - elapsed / 1000;
+          }
+        }
+        // Update current game object:
+        playMove(move, this.vr);
+        if (!data.score) {
+          // Received move, score has not been computed in BaseGame (!!noemit)
+          const score = this.vr.getCurrentScore();
+          if (score != "*") this.gameOver(score);
+        }
+// TODO: notifyTurn: "changeturn" message
+        this.game.moves.push(move);
+        // (add)Time indication: useful in case of lastate infos requested
+        if (this.game.type == "live")
+          this.game.addTimes.push(addTime);
+        this.game.fen = this.vr.getFen();
+        if (this.game.type == "live") this.game.clocks[colorIdx] += addTime;
+        // In corr games, just reset clock to mainTime:
+        else this.game.clocks[colorIdx] = extractTime(this.game.cadence).mainTime;
+        // data.initime is set only when I receive a "lastate" move from opponent
+        this.game.initime[nextIdx] = data.initime || Date.now();
+        // If repetition detected, consider that a draw offer was received:
+        const fenObj = this.vr.getFenForRepeat();
+        this.repeat[fenObj] = this.repeat[fenObj] ? this.repeat[fenObj] + 1 : 1;
+        if (this.repeat[fenObj] >= 3) this.drawOffer = "threerep";
+        else if (this.drawOffer == "threerep") this.drawOffer = "";
+        if (!!this.game.mycolor && !data.receiveMyMove) {
+          // NOTE: 'var' to see that variable outside this block
+          var filtered_move = getFilteredMove(move);
+        }
+        // Since corr games are stored at only one location, update should be
+        // done only by one player for each move:
+        if (
+          !!this.game.mycolor &&
+          !data.receiveMyMove &&
+          (this.game.type == "live" || moveCol == this.game.mycolor)
+        ) {
+          let drawCode = "";
+          switch (this.drawOffer) {
+            case "threerep":
+              drawCode = "t";
+              break;
+            case "sent":
+              drawCode = this.game.mycolor;
+              break;
+            case "received":
+              drawCode = V.GetOppCol(this.game.mycolor);
+              break;
+          }
+          if (this.game.type == "corr") {
+            // corr: only move, fen and score
+            this.updateCorrGame({
+              fen: this.game.fen,
+              move: {
+                squares: filtered_move,
+                played: Date.now(),
+                idx: origMovescount
+              },
+              // Code "n" for "None" to force reset (otherwise it's ignored)
+              drawOffer: drawCode || "n"
+            });
+          }
+          else {
+            const updateStorage = () => {
+              GameStorage.update(this.gameRef.id, {
+                fen: this.game.fen,
+                move: filtered_move,
+                moveIdx: origMovescount,
+                clocks: this.game.clocks,
+                initime: this.game.initime,
+                drawOffer: drawCode
+              });
+            };
+            // The active tab can update storage immediately
+            if (!document.hidden) updateStorage();
+            // Small random delay otherwise
+            else setTimeout(updateStorage, 500 + 1000 * Math.random());
+          }
+        }
+        // Send move ("newmove" event) to people in the room (if our turn)
+        if (moveCol == this.game.mycolor && !data.receiveMyMove) {
+          const sendMove = {
+            move: filtered_move,
+            index: origMovescount,
+            // color is required to check if this is my move (if several tabs opened)
+            color: moveCol,
+            addTime: addTime, //undefined for corr games
+            cancelDrawOffer: this.drawOffer == ""
+          };
+          this.opponentGotMove = false;
+          this.send("newmove", {data: sendMove});
+          // If the opponent doesn't reply gotmove soon enough, re-send move:
+          this.retrySendmove = setInterval(
+            () => {
+              if (this.opponentGotMove) {
+                clearInterval(this.retrySendmove);
+                return;
+              }
+              let oppsid = this.game.players[nextIdx].sid;
+              if (!oppsid) {
+                oppsid = Object.keys(this.people).find(
+                  sid => this.people[sid].id == this.game.players[nextIdx].uid
+                );
+              }
+              if (!oppsid || !this.people[oppsid])
+                // Opponent is disconnected: he'll ask last state
+                clearInterval(this.retrySendmove);
+              else this.send("newmove", {data: sendMove, target: oppsid});
+            },
+            1000
+          );
+        }
+      };
+      if (
+        this.game.type == "corr" &&
+        moveCol == this.game.mycolor &&
+        !data.receiveMyMove
+      ) {
+        const afterSetScore = () => {
+          doProcessMove();
+          if (this.st.settings.gotonext && this.nextIds.length > 0)
+            this.showNextGame();
+          else {
+            this.re_setClocks();
+            // The board might have been hidden:
+            let boardDiv = document.querySelector(".game");
+            if (boardDiv.style.visibility == "hidden")
+              boardDiv.style.visibility = "visible";
+          }
+        };
+        if (["all","byrow"].includes(V.ShowMoves)) {
+          let el = document.querySelector("#buttonsConfirm > .acceptBtn");
+          // We may play several moves in a row: in case of, remove listener:
+          let elClone = el.cloneNode(true);
+          el.parentNode.replaceChild(elClone, el);
+          elClone.addEventListener(
+            "click",
+            () => {
+              document.getElementById("modalConfirm").checked = false;
+              if (!!data.score && data.score != "*")
+                // Set score first
+                this.gameOver(data.score, null, afterSetScore);
+              else afterSetScore();
+            }
+          );
+          // PlayOnBoard is enough, and more appropriate for Synchrone Chess
+          V.PlayOnBoard(this.vr.board, move);
+          const position = this.vr.getBaseFen();
+          V.UndoOnBoard(this.vr.board, move);
+          this.curDiag = getDiagram({
+            position: position,
+            orientation: V.CanFlip ? this.game.mycolor : "w"
+          });
+          document.getElementById("modalConfirm").checked = true;
+        } else {
+          // Incomplete information: just ask confirmation
+          // Hide the board, because otherwise it could be revealed (TODO?)
+          let boardDiv = document.querySelector(".game");
+          boardDiv.style.visibility = "hidden";
+          if (
+            !confirm(
+              this.st.tr["Move played:"] + " " +
+              getFullNotation(move) + "\n" +
+              this.st.tr["Are you sure?"]
+            )
+          ) {
+            this.$refs["basegame"].cancelLastMove();
+            boardDiv.style.visibility = "visible";
+            return;
+          }
+          if (!!data.score && data.score != "*")
+            this.gameOver(data.score, null, afterSetScore);
+          else afterSetScore();
+        }
+      }
+      else {
+        // Normal situation
+        const afterSetScore = () => {
+          doProcessMove();
+          this.re_setClocks();
+        };
+        if (!!data.score && data.score != "*")
+          this.gameOver(data.score, null, afterSetScore);
+        else afterSetScore();
+      }
+    },
+    cancelMove: function() {
+      document.getElementById("modalConfirm").checked = false;
+      this.$refs["basegame"].cancelLastMove();
+    },
+    // In corr games, callback to change page only after score is set:
+    gameOver: function(score, scoreMsg, callback) {
+      this.game.score = score;
+      if (!scoreMsg) scoreMsg = getScoreMessage(score);
+      this.$set(this.game, "scoreMsg", scoreMsg);
+      const myIdx = this.game.players.findIndex(p => {
+        return p.sid == this.st.user.sid || p.uid == this.st.user.id;
+      });
+      if (myIdx >= 0) {
+        // OK, I play in this game
+        const scoreObj = {
+          score: score,
+          scoreMsg: scoreMsg
+        };
+        if (this.game.type == "live") {
+          GameStorage.update(this.gameRef.id, scoreObj);
+          if (!!callback) callback();
+        }
+        else this.updateCorrGame(scoreObj, callback);
+        // Notify the score to main Hall. TODO: only one player (currently double send)
+        this.send("result", { gid: this.game.id, score: score });
+      }
+      else if (!!callback) callback();
+    }
+  }
+};
+</script>
+
+<style lang="sass" scoped>
+.connected
+  background-color: lightgreen
+
+#participants
+  margin-left: 5px
+
+.anonymous
+  color: grey
+  font-style: italic
+
+#playersInfo > p
+  margin: 0
+
+@media screen and (min-width: 768px)
+  #actions
+    width: 300px
+@media screen and (max-width: 767px)
+  .game
+    width: 100%
+
+#actions
+  display: inline-block
+  margin: 0
+
+button
+  display: inline-block
+  margin: 0
+  display: inline-flex
+  img
+    height: 24px
+    display: flex
+    @media screen and (max-width: 767px)
+      height: 18px
+
+@media screen and (max-width: 767px)
+  #aboveBoard
+    text-align: center
+@media screen and (min-width: 768px)
+  #aboveBoard
+    margin-left: 30%
+
+.variant-cadence
+  padding-right: 10px
+
+.variant-name
+  font-weight: bold
+  padding-right: 10px
+
+span#nextGame
+  background-color: #edda99
+  cursor: pointer
+  display: inline-block
+  margin-right: 10px
+
+span.name
+  font-size: 1.5rem
+  padding: 0 3px
+
+span.time
+  font-size: 2rem
+  display: inline-block
+  .time-left
+    margin-left: 10px
+  .time-right
+    margin-left: 5px
+  .time-separator
+    margin-left: 5px
+    position: relative
+    top: -1px
+
+span.yourturn
+  color: #831B1B
+  .time-separator
+    animation: blink-animation 2s steps(3, start) infinite
+@keyframes blink-animation
+  to
+    visibility: hidden
+
+.split-names
+  display: inline-block
+  margin: 0 15px
+
+#chatWrap > .card
+  padding-top: 20px
+  max-width: 767px
+  border: none
+
+#confirmDiv > .card
+  max-width: 767px
+  max-height: 100%
+
+.draw-sent, .draw-sent:hover
+  background-color: lightyellow
+
+.draw-received, .draw-received:hover
+  background-color: lightgreen
+
+.draw-threerep, .draw-threerep:hover
+  background-color: #e4d1fc
+
+.somethingnew
+  background-color: #c5fefe
+
+.diagram
+  margin: 0 auto
+  max-width: 400px
+  // width: 100% required for Firefox
+  width: 100%
+
+#buttonsConfirm
+  margin: 0
+  & > button > span
+    width: 100%
+    text-align: center
+
+button.acceptBtn
+  background-color: lightgreen
+button.refuseBtn
+  background-color: red
+</style>