client/src/views/Game.vue

   1 <template lang="pug">
   2 .row
   3   .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
   4     BaseGame(:game="game" :vr="vr" ref="basegame"
   5       @newmove="processMove" @gameover="gameOver")
   6     div Names: {{ game.players[0].name }} - {{ game.players[1].name }}
   7     div(v-if="game.score=='*'") Time: {{ virtualClocks[0] }} - {{ virtualClocks[1] }}
   8     .button-group(v-if="game.mode!='analyze' && game.score=='*'")
   9       button(@click="offerDraw") Draw
  10       button(@click="abortGame") Abort
  11       button(@click="resign") Resign
  12     textarea(v-if="game.score=='*'" v-model="corrMsg")
  13     Chat(:players="game.players")
  14 </template>
  15
  16 <script>
  17 import BaseGame from "@/components/BaseGame.vue";
  18 import Chat from "@/components/Chat.vue";
  19 import { store } from "@/store";
  20 import { GameStorage } from "@/utils/gameStorage";
  21 import { ppt } from "@/utils/datetime";
  22 import { extractTime } from "@/utils/timeControl";
  23 import { ArrayFun } from "@/utils/array";
  24
  25 export default {
  26   name: 'my-game',
  27   components: {
  28     BaseGame,
  29     Chat,
  30   },
  31   // gameRef: to find the game in (potentially remote) storage
  32   data: function() {
  33     return {
  34       st: store.state,
  35       gameRef: { //given in URL (rid = remote ID)
  36         id: "",
  37         rid: ""
  38       },
  39       game: {players:[{name:""},{name:""}]}, //passed to BaseGame
  40       corrMsg: "", //to send offline messages in corr games
  41       virtualClocks: [0, 0], //initialized with true game.clocks
  42       vr: null, //"variant rules" object initialized from FEN
  43       drawOffer: "", //TODO: use for button style
  44       people: [], //players + observers
  45     };
  46   },
  47   watch: {
  48     "$route": function(to, from) {
  49       this.gameRef.id = to.params["id"];
  50       this.gameRef.rid = to.query["rid"];
  51       this.loadGame();
  52     },
  53     "game.clocks": function(newState) {
  54       if (this.game.moves.length < 2)
  55       {
  56         // 1st move not completed yet: freeze time
  57         this.virtualClocks = newState.map(s => ppt(s));
  58         return;
  59       }
  60       const currentTurn = this.vr.turn;
  61       const colorIdx = ["w","b"].indexOf(currentTurn);
  62       let countdown = newState[colorIdx] -
  63         (Date.now() - this.game.initime[colorIdx])/1000;
  64       this.virtualClocks = [0,1].map(i => {
  65         const removeTime = i == colorIdx
  66           ? (Date.now() - this.game.initime[colorIdx])/1000
  67           : 0;
  68         return ppt(newState[i] - removeTime);
  69       });
  70       let clockUpdate = setInterval(() => {
  71         if (countdown < 0 || this.vr.turn != currentTurn || this.game.score != "*")
  72         {
  73           clearInterval(clockUpdate);
  74           if (countdown < 0)
  75           {
  76             this.$refs["basegame"].endGame(
  77               this.vr.turn=="w" ? "0-1" : "1-0", "Time");
  78           }
  79         }
  80         else
  81         {
  82           // TODO: with Vue 3, just do this.virtualClocks[colorIdx] = ppt(--countdown)
  83           this.$set(this.virtualClocks, colorIdx, ppt(Math.max(0, --countdown)));
  84         }
  85       }, 1000);
  86     },
  87   },
  88   // TODO: redundant code with Hall.vue (related to people array)
  89   created: function() {
  90     // Always add myself to players' list
  91     const my = this.st.user;
  92     this.people.push({sid:my.sid, id:my.id, name:my.name});
  93     this.gameRef.id = this.$route.params["id"];
  94     this.gameRef.rid = this.$route.query["rid"]; //may be undefined
  95     if (!this.gameRef.rid)
  96       this.loadGame(); //local or corr: can load from now
  97     // 0.1] Ask server for room composition:
  98     const initialize = () => {
  99       // Poll clients + load game if stored remotely
 100       this.st.conn.send(JSON.stringify({code:"pollclients"}));
 101       if (!!this.gameRef.rid)
 102         this.loadGame();
 103     };
 104     if (!!this.st.conn && this.st.conn.readyState == 1) //1 == OPEN state
 105       initialize();
 106     else //socket not ready yet (initial loading)
 107       this.st.conn.onopen = initialize;
 108     this.st.conn.onmessage = this.socketMessageListener;
 109     const socketCloseListener = () => {
 110       store.socketCloseListener(); //reinitialize connexion (in store.js)
 111       this.st.conn.addEventListener('message', this.socketMessageListener);
 112       this.st.conn.addEventListener('close', socketCloseListener);
 113     };
 114     this.st.conn.onclose = socketCloseListener;
 115   },
 116   methods: {
 117     getOppSid: function() {
 118       if (!!this.game.oppsid)
 119         return this.game.oppsid;
 120       const opponent = this.people.find(p => p.id == this.game.oppid);
 121       return (!!opponent ? opponent.sid : null);
 122     },
 123     socketMessageListener: function(msg) {
 124       const data = JSON.parse(msg.data);
 125       switch (data.code)
 126       {
 127         case "duplicate":
 128           alert("Warning: duplicate 'offline' connection");
 129           break;
 130         // 0.2] Receive clients list (just socket IDs)
 131         case "pollclients":
 132         {
 133           data.sockIds.forEach(sid => {
 134             this.people.push({sid:sid, id:0, name:""});
 135             // Ask only identity
 136             this.st.conn.send(JSON.stringify({code:"askidentity", target:sid}));
 137           });
 138           break;
 139         }
 140         case "askidentity":
 141         {
 142           // Request for identification: reply if I'm not anonymous
 143           if (this.st.user.id > 0)
 144           {
 145             this.st.conn.send(JSON.stringify(
 146               // people[0] instead of st.user to avoid sending email
 147               {code:"identity", user:this.people[0], target:data.from}));
 148           }
 149           break;
 150         }
 151         case "identity":
 152         {
 153           let player = this.people.find(p => p.sid == data.user.sid);
 154           // NOTE: sometimes player.id fails because player is undefined...
 155           // Probably because the event was meant for Hall?
 156           if (!player)
 157             return;
 158           player.id = data.user.id;
 159           player.name = data.user.name;
 160           // Sending last state only for live games: corr games are complete
 161           if (this.game.type == "live" && this.game.oppsid == player.sid)
 162           {
 163             // Send our "last state" informations to opponent
 164             const L = this.game.moves.length;
 165             let lastMove = (L>0 ? this.game.moves[L-1] : undefined);
 166             if (!!lastMove && this.drawOffer == "sent")
 167               lastMove.draw = true;
 168             this.st.conn.send(JSON.stringify({
 169               code: "lastate",
 170               target: player.sid,
 171               state:
 172               {
 173                 lastMove: lastMove,
 174                 score: this.game.score,
 175                 movesCount: L,
 176                 clocks: this.game.clocks,
 177               }
 178             }));
 179           }
 180           break;
 181         }
 182         case "askgame":
 183           // Send current (live) game
 184           const myGame =
 185           {
 186             // Minimal game informations:
 187             id: this.game.id,
 188             players: this.game.players.map(p => { return {name:p.name}; }),
 189             vid: this.game.vid,
 190             timeControl: this.game.timeControl,
 191           };
 192           this.st.conn.send(JSON.stringify({code:"game",
 193             game:myGame, target:data.from}));
 194           break;
 195         case "newmove":
 196           // NOTE: this call to play() will trigger processMove()
 197           this.$refs["basegame"].play(data.move,
 198             "receive", this.game.vname!="Dark" ? "animate" : null);
 199           break;
 200         case "lastate": //got opponent infos about last move
 201         {
 202           const L = this.game.moves.length;
 203           if (data.movesCount > L)
 204           {
 205             // Just got last move from him
 206             this.$refs["basegame"].play(data.lastMove,
 207               "receive", this.game.vname!="Dark" ? "animate" : null);
 208             if (data.score != "*" && this.game.score == "*")
 209             {
 210               // Opponent resigned or aborted game, or accepted draw offer
 211               // (this is not a stalemate or checkmate)
 212               this.$refs["basegame"].endGame(data.score, "Opponent action");
 213             }
 214             this.game.clocks = data.clocks; //TODO: check this?
 215             if (!!data.lastMove.draw)
 216               this.drawOffer = "received";
 217           }
 218           break;
 219         }
 220         case "resign":
 221           this.$refs["basegame"].endGame(
 222             this.game.mycolor=="w" ? "1-0" : "0-1", "Resign");
 223           break;
 224         case "abort":
 225           this.$refs["basegame"].endGame("?", "Abort");
 226           break;
 227         case "draw":
 228           this.$refs["basegame"].endGame("1/2", "Mutual agreement");
 229           break;
 230         case "drawoffer":
 231           this.drawOffer = "received";
 232           break;
 233         case "drawaccepted":
 234           this.gameOver("1/2");
 235           break;
 236         case "askfullgame":
 237           this.st.conn.send(JSON.stringify({code:"fullgame", game:this.game, target:data.from}));
 238           break;
 239         case "fullgame":
 240           this.loadGame(data.game);
 241           break;
 242         case "connect":
 243         {
 244           this.people.push({name:"", id:0, sid:data.from});
 245           this.st.conn.send(JSON.stringify({code:"askidentity", target:data.from}));
 246           break;
 247         }
 248         case "disconnect":
 249           ArrayFun.remove(this.people, p => p.sid == data.from);
 250           break;
 251       }
 252     },
 253     offerDraw: function() {
 254       // TODO: also for corr games
 255       if (this.drawOffer == "received")
 256       {
 257         if (!confirm("Accept draw?"))
 258           return;
 259         const oppsid = this.getOppSid(); //TODO: to all people...
 260         if (!!oppsid)
 261           this.st.conn.send(JSON.stringify({code:"draw", target:oppsid}));
 262         this.$refs["basegame"].endGame("1/2", "Mutual agreement");
 263       }
 264       else if (this.drawOffer == "sent")
 265         this.drawOffer = "";
 266       else
 267       {
 268         if (!confirm("Offer draw?"))
 269           return;
 270         const oppsid = this.getOppSid();
 271         if (!!oppsid)
 272           this.st.conn.send(JSON.stringify({code:"drawoffer", target:oppsid}));
 273       }
 274     },
 275     abortGame: function() {
 276       if (!confirm(this.st.tr["Terminate game?"]))
 277         return;
 278       // Next line will trigger a "gameover" event, bubbling up till here
 279       this.$refs["basegame"].endGame("?", "Abort");
 280       this.people.forEach(p => {
 281         if (p.sid != this.st.user.sid)
 282         {
 283           this.st.conn.send(JSON.stringify({
 284             code: "abort",
 285             target: p.sid,
 286           }));
 287         }
 288       });
 289     },
 290     resign: function(e) {
 291       if (!confirm("Resign the game?"))
 292         return;
 293       const oppsid = this.getOppSid();
 294       if (!!oppsid)
 295       {
 296         this.st.conn.send(JSON.stringify({
 297           code: "resign",
 298           target: oppsid,
 299         }));
 300       }
 301       // Next line will trigger a "gameover" event, bubbling up till here
 302       this.$refs["basegame"].endGame(
 303         this.game.mycolor=="w" ? "0-1" : "1-0", "Resign");
 304     },
 305     // 3 cases for loading a game:
 306     //  - from indexedDB (running or completed live game I play)
 307     //  - from server (one correspondance game I play[ed] or not)
 308     //  - from remote peer (one live game I don't play, finished or not)
 309     loadGame: function(game) {
 310       const afterRetrieval = async (game) => {
 311         const vModule = await import("@/variants/" + game.vname + ".js");
 312         window.V = vModule.VariantRules;
 313         this.vr = new V(game.fen);
 314         const gtype = (game.timeControl.indexOf('d') >= 0 ? "corr" : "live");
 315         const tc = extractTime(game.timeControl);
 316         if (gtype == "corr")
 317         {
 318           if (game.players[0].color == "b")
 319           {
 320             // Adopt the same convention for live and corr games: [0] = white
 321             [ game.players[0], game.players[1] ] =
 322               [ game.players[1], game.players[0] ];
 323           }
 324           // corr game: needs to compute the clocks + initime
 325           // NOTE: clocks in seconds, initime in milliseconds
 326           game.clocks = [tc.mainTime, tc.mainTime];
 327           game.initime = [0, 0];
 328           const L = game.moves.length;
 329           game.moves.sort((m1,m2) => m1.idx - m2.idx); //in case of
 330           if (L >= 3)
 331           {
 332             let addTime = [0, 0];
 333             for (let i=2; i<L; i++)
 334             {
 335               addTime[i%2] += tc.increment -
 336                 (game.moves[i].played - game.moves[i-1].played) / 1000;
 337             }
 338             for (let i=0; i<=1; i++)
 339               game.clocks[i] += addTime[i];
 340           }
 341           if (L >= 1)
 342             game.initime[L%2] = game.moves[L-1].played;
 343           // Now that we used idx and played, re-format moves as for live games
 344           game.moves = game.moves.map( (m) => {
 345             const s = m.squares;
 346             return {
 347               appear: s.appear,
 348               vanish: s.vanish,
 349               start: s.start,
 350               end: s.end,
 351               message: m.message,
 352             };
 353           });
 354         }
 355         const myIdx = game.players.findIndex(p => {
 356           return p.sid == this.st.user.sid || p.uid == this.st.user.id;
 357         });
 358         if (gtype == "live" && game.clocks[0] < 0) //game unstarted
 359         {
 360           game.clocks = [tc.mainTime, tc.mainTime];
 361           game.initime[0] = Date.now();
 362           if (myIdx >= 0)
 363           {
 364             // I play in this live game; corr games don't have clocks+initime
 365             GameStorage.update(game.id,
 366             {
 367               clocks: game.clocks,
 368               initime: game.initime,
 369             });
 370           }
 371         }
 372         this.game = Object.assign({},
 373           game,
 374           // NOTE: assign mycolor here, since BaseGame could also be VS computer
 375           {
 376             type: gtype,
 377             increment: tc.increment,
 378             mycolor: [undefined,"w","b"][myIdx+1],
 379             // opponent sid not strictly required (or available), but easier
 380             // at least oppsid or oppid is available anyway:
 381             oppsid: (myIdx < 0 ? undefined : game.players[1-myIdx].sid),
 382             oppid: (myIdx < 0 ? undefined : game.players[1-myIdx].uid),
 383           }
 384         );
 385       };
 386       if (!!game)
 387         return afterRetrieval(game);
 388       if (!!this.gameRef.rid)
 389       {
 390         // Remote live game
 391         // (TODO: send game ID as well, and receiver would pick the corresponding
 392         // game in his current games; if allowed to play several)
 393         this.st.conn.send(JSON.stringify(
 394           {code:"askfullgame", target:this.gameRef.rid}));
 395         // (send moves updates + resign/abort/draw actions)
 396       }
 397       else
 398       {
 399         // Local or corr game
 400         GameStorage.get(this.gameRef.id, afterRetrieval);
 401       }
 402     },
 403     // Post-process a move (which was just played)
 404     processMove: function(move) {
 405       if (!this.game.mycolor)
 406         return; //I'm just an observer
 407       // Update storage (corr or live)
 408       const colorIdx = ["w","b"].indexOf(move.color);
 409       // https://stackoverflow.com/a/38750895
 410       const allowed_fields = ["appear", "vanish", "start", "end"];
 411       const filtered_move = Object.keys(move)
 412         .filter(key => allowed_fields.includes(key))
 413         .reduce((obj, key) => {
 414           obj[key] = move[key];
 415           return obj;
 416         }, {});
 417       // Send move ("newmove" event) to people in the room (if our turn)
 418       let addTime = 0;
 419       if (move.color == this.game.mycolor)
 420       {
 421         if (this.game.moves.length >= 2) //after first move
 422         {
 423           const elapsed = Date.now() - this.game.initime[colorIdx];
 424           // elapsed time is measured in milliseconds
 425           addTime = this.game.increment - elapsed/1000;
 426         }
 427         let sendMove = Object.assign({}, filtered_move, {addTime: addTime});
 428         if (this.game.type == "corr")
 429           sendMove.message = this.corrMsg;
 430         const oppsid = this.getOppSid();
 431         this.people.forEach(p => {
 432           if (p.sid != this.st.user.sid)
 433           {
 434             this.st.conn.send(JSON.stringify({
 435               code: "newmove",
 436               target: p.sid,
 437               move: sendMove,
 438             }));
 439           }
 440         });
 441         if (this.game.type == "corr" && this.corrMsg != "")
 442         {
 443           // Add message to last move in BaseGame:
 444           // TODO: not very good style...
 445           this.$refs["basegame"].setCurrentMessage(this.corrMsg);
 446         }
 447       }
 448       else
 449         addTime = move.addTime; //supposed transmitted
 450       const nextIdx = ["w","b"].indexOf(this.vr.turn);
 451       // Since corr games are stored at only one location, update should be
 452       // done only by one player for each move:
 453       if (this.game.type == "live" || move.color == this.game.mycolor)
 454       {
 455         if (this.game.type == "corr")
 456         {
 457           GameStorage.update(this.gameRef.id,
 458           {
 459             fen: move.fen,
 460             move:
 461             {
 462               squares: filtered_move,
 463               message: this.corrMsg,
 464               played: Date.now(), //TODO: on server?
 465               idx: this.game.moves.length,
 466             },
 467           });
 468         }
 469         else //live
 470         {
 471           GameStorage.update(this.gameRef.id,
 472           {
 473             fen: move.fen,
 474             move: filtered_move,
 475             clocks: this.game.clocks.map((t,i) => i==colorIdx
 476               ? this.game.clocks[i] + addTime
 477               : this.game.clocks[i]),
 478             initime: this.game.initime.map((t,i) => i==nextIdx
 479               ? Date.now()
 480               : this.game.initime[i]),
 481           });
 482         }
 483       }
 484       // Also update current game object:
 485       this.game.moves.push(move);
 486       this.game.fen = move.fen;
 487       //TODO: just this.game.clocks[colorIdx] += addTime;
 488       this.$set(this.game.clocks, colorIdx, this.game.clocks[colorIdx] + addTime);
 489       this.game.initime[nextIdx] = Date.now();
 490       // Finally reset curMoveMessage if needed
 491       if (this.game.type == "corr" && move.color == this.game.mycolor)
 492         this.corrMsg = "";
 493     },
 494     gameOver: function(score) {
 495       this.game.mode = "analyze";
 496       this.game.score = score;
 497       const myIdx = this.game.players.findIndex(p => {
 498         return p.sid == this.st.user.sid || p.uid == this.st.user.id;
 499       });
 500       if (myIdx >= 0) //OK, I play in this game
 501         GameStorage.update(this.gameRef.id, { score: score });
 502     },
 503   },
 504 };
 505 </script>
 506
 507 <style lang="sass">
 508 // TODO
 509 </style>