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         // 0.2] Receive clients list (just socket IDs)
 128         case "pollclients":
 129         {
 130           data.sockIds.forEach(sid => {
 131             this.people.push({sid:sid, id:0, name:""});
 132             // Ask only identity
 133             this.st.conn.send(JSON.stringify({code:"askidentity", target:sid}));
 134           });
 135           break;
 136         }
 137         case "askidentity":
 138         {
 139           // Request for identification: reply if I'm not anonymous
 140           if (this.st.user.id > 0)
 141           {
 142             this.st.conn.send(JSON.stringify(
 143               // people[0] instead of st.user to avoid sending email
 144               {code:"identity", user:this.people[0], target:data.from}));
 145           }
 146           break;
 147         }
 148         case "identity":
 149         {
 150           let player = this.people.find(p => p.sid == data.user.sid);
 151           // NOTE: sometimes player.id fails because player is undefined...
 152           // Probably because the event was meant for Hall?
 153           if (!player)
 154             return;
 155           player.id = data.user.id;
 156           player.name = data.user.name;
 157           // Sending last state only for live games: corr games are complete
 158           if (this.game.type == "live" && this.game.oppsid == player.sid)
 159           {
 160             // Send our "last state" informations to opponent
 161             const L = this.game.moves.length;
 162             this.st.conn.send(JSON.stringify({
 163               code: "lastate",
 164               target: player.sid,
 165               state:
 166               {
 167                 lastMove: (L>0 ? this.game.moves[L-1] : undefined),
 168                 score: this.game.score,
 169                 movesCount: L,
 170                 drawOffer: this.drawOffer,
 171                 clocks: this.game.clocks,
 172               }
 173             }));
 174           }
 175           break;
 176         }
 177         case "askgame":
 178           // Send current (live) game
 179           const myGame =
 180           {
 181             // Minimal game informations:
 182             id: this.game.id,
 183             players: this.game.players.map(p => { return {name:p.name}; }),
 184             vid: this.game.vid,
 185             timeControl: this.game.timeControl,
 186           };
 187           this.st.conn.send(JSON.stringify({code:"game",
 188             game:myGame, target:data.from}));
 189           break;
 190         case "newmove":
 191           // NOTE: this call to play() will trigger processMove()
 192           this.$refs["basegame"].play(data.move,
 193             "receive", this.game.vname!="Dark" ? "animate" : null);
 194           break;
 195         case "lastate": //got opponent infos about last move
 196         {
 197           const L = this.game.moves.length;
 198           if (data.movesCount > L)
 199           {
 200             // Just got last move from him
 201             this.$refs["basegame"].play(data.lastMove,
 202               "receive", this.game.vname!="Dark" ? "animate" : null);
 203             if (data.score != "*" && this.game.score == "*")
 204             {
 205               // Opponent resigned or aborted game, or accepted draw offer
 206               // (this is not a stalemate or checkmate)
 207               this.$refs["basegame"].endGame(data.score, "Opponent action");
 208             }
 209             this.game.clocks = data.clocks; //TODO: check this?
 210             this.drawOffer = data.drawOffer; //does opponent offer draw?
 211           }
 212           break;
 213         }
 214         case "resign":
 215           this.$refs["basegame"].endGame(
 216             this.game.mycolor=="w" ? "1-0" : "0-1", "Resign");
 217           break;
 218         case "abort":
 219           this.$refs["basegame"].endGame("?", "Abort");
 220           break;
 221         case "draw":
 222           this.$refs["basegame"].endGame("1/2", "Mutual agreement");
 223           break;
 224         case "drawoffer":
 225           this.drawOffer = "received";
 226           break;
 227         case "askfullgame":
 228           // TODO: use data.id to retrieve game in indexedDB (but for now only one running game so OK)
 229           this.st.conn.send(JSON.stringify({code:"fullgame", game:this.game, target:data.from}));
 230           break;
 231         case "fullgame":
 232           this.loadGame(data.game);
 233           break;
 234         // TODO: drawaccepted (click draw button before sending move
 235         // ==> draw offer in move)
 236         // ==> on "newmove", check "drawOffer" field
 237         case "connect":
 238         {
 239           this.people.push({name:"", id:0, sid:data.from});
 240           this.st.conn.send(JSON.stringify({code:"askidentity", target:data.from}));
 241           break;
 242         }
 243         case "disconnect":
 244           ArrayFun.remove(this.people, p => p.sid == data.from);
 245           break;
 246       }
 247     },
 248     offerDraw: function() {
 249       // TODO: also for corr games
 250       if (this.drawOffer == "received")
 251       {
 252         if (!confirm("Accept draw?"))
 253           return;
 254         const oppsid = this.getOppSid();
 255         if (!!oppsid)
 256           this.st.conn.send(JSON.stringify({code:"draw", target:oppsid}));
 257         this.$refs["basegame"].endGame("1/2", "Mutual agreement");
 258       }
 259       else if (this.drawOffer == "sent")
 260         this.drawOffer = "";
 261       else
 262       {
 263         if (!confirm("Offer draw?"))
 264           return;
 265         const oppsid = this.getOppSid();
 266         if (!!oppsid)
 267           this.st.conn.send(JSON.stringify({code:"drawoffer", target:oppsid}));
 268       }
 269     },
 270     // + conn handling: "draw" message ==> agree for draw (if we have "drawOffered" at true)
 271     receiveDrawOffer: function() {
 272       //if (...)
 273       // TODO: ignore if preventDrawOffer is set; otherwise show modal box with option "prevent future offers"
 274       // if accept: send message "draw"
 275     },
 276     abortGame: function() {
 277       if (!confirm(this.st.tr["Terminate game?"]))
 278         return;
 279       // Next line will trigger a "gameover" event, bubbling up till here
 280       this.$refs["basegame"].endGame("?", "Abort");
 281       this.people.forEach(p => {
 282         if (p.sid != this.st.user.sid)
 283         {
 284           this.st.conn.send(JSON.stringify({
 285             code: "abort",
 286             target: p.sid,
 287           }));
 288         }
 289       });
 290     },
 291     resign: function(e) {
 292       if (!confirm("Resign the game?"))
 293         return;
 294       const oppsid = this.getOppSid();
 295       if (!!oppsid)
 296       {
 297         this.st.conn.send(JSON.stringify({
 298           code: "resign",
 299           target: oppsid,
 300         }));
 301       }
 302       // Next line will trigger a "gameover" event, bubbling up till here
 303       this.$refs["basegame"].endGame(
 304         this.game.mycolor=="w" ? "0-1" : "1-0", "Resign");
 305     },
 306     // 3 cases for loading a game:
 307     //  - from indexedDB (running or completed live game I play)
 308     //  - from server (one correspondance game I play[ed] or not)
 309     //  - from remote peer (one live game I don't play, finished or not)
 310     loadGame: function(game) {
 311       const afterRetrieval = async (game) => {
 312         const vModule = await import("@/variants/" + game.vname + ".js");
 313         window.V = vModule.VariantRules;
 314         this.vr = new V(game.fen);
 315         const gtype = (game.timeControl.indexOf('d') >= 0 ? "corr" : "live");
 316         const tc = extractTime(game.timeControl);
 317         if (gtype == "corr")
 318         {
 319           if (game.players[0].color == "b")
 320           {
 321             // Adopt the same convention for live and corr games: [0] = white
 322             [ game.players[0], game.players[1] ] =
 323               [ game.players[1], game.players[0] ];
 324           }
 325           // corr game: needs to compute the clocks + initime
 326           // NOTE: clocks in seconds, initime in milliseconds
 327           game.clocks = [tc.mainTime, tc.mainTime];
 328           game.initime = [0, 0];
 329           const L = game.moves.length;
 330           game.moves.sort((m1,m2) => m1.idx - m2.idx); //in case of
 331           if (L >= 3)
 332           {
 333             let addTime = [0, 0];
 334             for (let i=2; i<L; i++)
 335             {
 336               addTime[i%2] += tc.increment -
 337                 (game.moves[i].played - game.moves[i-1].played) / 1000;
 338             }
 339             for (let i=0; i<=1; i++)
 340               game.clocks[i] += addTime[i];
 341           }
 342           if (L >= 1)
 343             game.initime[L%2] = game.moves[L-1].played;
 344           // Now that we used idx and played, re-format moves as for live games
 345           game.moves = game.moves.map( (m) => {
 346             const s = m.squares;
 347             return {
 348               appear: s.appear,
 349               vanish: s.vanish,
 350               start: s.start,
 351               end: s.end,
 352               message: m.message,
 353             };
 354           });
 355         }
 356         const myIdx = game.players.findIndex(p => {
 357           return p.sid == this.st.user.sid || p.uid == this.st.user.id;
 358         });
 359         if (gtype == "live" && game.clocks[0] < 0) //game unstarted
 360         {
 361           game.clocks = [tc.mainTime, tc.mainTime];
 362           game.initime[0] = Date.now();
 363           if (myIdx >= 0)
 364           {
 365             // I play in this live game; corr games don't have clocks+initime
 366             GameStorage.update(game.id,
 367             {
 368               clocks: game.clocks,
 369               initime: game.initime,
 370             });
 371           }
 372         }
 373         this.game = Object.assign({},
 374           game,
 375           // NOTE: assign mycolor here, since BaseGame could also be VS computer
 376           {
 377             type: gtype,
 378             increment: tc.increment,
 379             mycolor: [undefined,"w","b"][myIdx+1],
 380             // opponent sid not strictly required (or available), but easier
 381             // at least oppsid or oppid is available anyway:
 382             oppsid: (myIdx < 0 ? undefined : game.players[1-myIdx].sid),
 383             oppid: (myIdx < 0 ? undefined : game.players[1-myIdx].uid),
 384           }
 385         );
 386       };
 387       if (!!game)
 388         return afterRetrieval(game);
 389       if (!!this.gameRef.rid)
 390       {
 391         // Remote live game
 392         // (TODO: send game ID as well, and receiver would pick the corresponding
 393         // game in his current games; if allowed to play several)
 394         this.st.conn.send(JSON.stringify(
 395           {code:"askfullgame", target:this.gameRef.rid}));
 396         // (send moves updates + resign/abort/draw actions)
 397       }
 398       else
 399       {
 400         // Local or corr game
 401         GameStorage.get(this.gameRef.id, afterRetrieval);
 402       }
 403     },
 404     // Post-process a move (which was just played)
 405     processMove: function(move) {
 406       if (!this.game.mycolor)
 407         return; //I'm just an observer
 408       // Update storage (corr or live)
 409       const colorIdx = ["w","b"].indexOf(move.color);
 410       // https://stackoverflow.com/a/38750895
 411       const allowed_fields = ["appear", "vanish", "start", "end"];
 412       const filtered_move = Object.keys(move)
 413         .filter(key => allowed_fields.includes(key))
 414         .reduce((obj, key) => {
 415           obj[key] = move[key];
 416           return obj;
 417         }, {});
 418       // Send move ("newmove" event) to people in the room (if our turn)
 419       let addTime = 0;
 420       if (move.color == this.game.mycolor)
 421       {
 422         if (this.game.moves.length >= 2) //after first move
 423         {
 424           const elapsed = Date.now() - this.game.initime[colorIdx];
 425           // elapsed time is measured in milliseconds
 426           addTime = this.game.increment - elapsed/1000;
 427         }
 428         let sendMove = Object.assign({}, filtered_move, {addTime: addTime});
 429         if (this.game.type == "corr")
 430           sendMove.message = this.corrMsg;
 431         const oppsid = this.getOppSid();
 432         this.people.forEach(p => {
 433           if (p.sid != this.st.user.sid)
 434           {
 435             this.st.conn.send(JSON.stringify({
 436               code: "newmove",
 437               target: p.sid,
 438               move: sendMove,
 439             }));
 440           }
 441         });
 442         if (this.game.type == "corr" && this.corrMsg != "")
 443         {
 444           // Add message to last move in BaseGame:
 445           // TODO: not very good style...
 446           this.$refs["basegame"].setCurrentMessage(this.corrMsg);
 447         }
 448       }
 449       else
 450         addTime = move.addTime; //supposed transmitted
 451       const nextIdx = ["w","b"].indexOf(this.vr.turn);
 452       // Since corr games are stored at only one location, update should be
 453       // done only by one player for each move:
 454       if (this.game.type == "live" || move.color == this.game.mycolor)
 455       {
 456         if (this.game.type == "corr")
 457         {
 458           GameStorage.update(this.gameRef.id,
 459           {
 460             fen: move.fen,
 461             move:
 462             {
 463               squares: filtered_move,
 464               message: this.corrMsg,
 465               played: Date.now(), //TODO: on server?
 466               idx: this.game.moves.length,
 467             },
 468           });
 469         }
 470         else //live
 471         {
 472           GameStorage.update(this.gameRef.id,
 473           {
 474             fen: move.fen,
 475             move: filtered_move,
 476             clocks: this.game.clocks.map((t,i) => i==colorIdx
 477               ? this.game.clocks[i] + addTime
 478               : this.game.clocks[i]),
 479             initime: this.game.initime.map((t,i) => i==nextIdx
 480               ? Date.now()
 481               : this.game.initime[i]),
 482           });
 483         }
 484       }
 485       // Also update current game object:
 486       this.game.moves.push(move);
 487       this.game.fen = move.fen;
 488       //TODO: just this.game.clocks[colorIdx] += addTime;
 489       this.$set(this.game.clocks, colorIdx, this.game.clocks[colorIdx] + addTime);
 490       this.game.initime[nextIdx] = Date.now();
 491       // Finally reset curMoveMessage if needed
 492       if (this.game.type == "corr" && move.color == this.game.mycolor)
 493         this.corrMsg = "";
 494     },
 495     gameOver: function(score) {
 496       this.game.mode = "analyze";
 497       this.game.score = score;
 498       const myIdx = this.game.players.findIndex(p => {
 499         return p.sid == this.st.user.sid || p.uid == this.st.user.id;
 500       });
 501       if (myIdx >= 0) //OK, I play in this game
 502         GameStorage.update(this.gameRef.id, { score: score });
 503     },
 504   },
 505 };
 506 </script>
 507
 508 <style lang="sass">
 509 // TODO
 510 </style>