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     input#modalAbort.modal(type="checkbox")
   5     div(role="dialog" aria-labelledby="abortBoxTitle")
   6       .card.smallpad.small-modal.text-center
   7         label.modal-close(for="modalAbort")
   8         h3#abortBoxTitle.section {{ st.tr["Terminate game?"] }}
   9         button(@click="abortGame") {{ st.tr["Sorry I have to go"] }}
  10         button(@click="abortGame") {{ st.tr["Game seems over"] }}
  11         button(@click="abortGame") {{ st.tr["Game is too boring"] }}
  12     BaseGame(:game="game" :vr="vr" ref="basegame"
  13       @newmove="processMove" @gameover="gameOver")
  14     // TODO: also show players names
  15     div Time: {{ virtualClocks[0] }} - {{ virtualClocks[1] }}
  16     .button-group(v-if="game.mode!='analyze' && game.score=='*'")
  17       button(@click="offerDraw") Draw
  18       button(@click="() => abortGame()") Abort
  19       button(@click="resign") Resign
  20     div(v-if="game.mode=='corr'")
  21       textarea(v-show="score=='*' && vr.turn==game.mycolor" v-model="corrMsg")
  22       div(v-show="cursor>=0") {{ moves[cursor].message }}
  23 </template>
  24
  25 <!--
  26 // TODO: movelist dans basegame et chat ici
  27 // ==> après, implémenter/vérifier les passages de challenges + parties en cours
  28 // observer,
  29 // + problèmes, habiller et publier. (+ corr...)
  30     // TODO: how to know who is observing ? Send message to everyone with game ID ?
  31     // and then just listen to (dis)connect events
  32     // server always send "connect on " + URL ; then add to observers if game...
  33 // router when access a game page tell to server I joined + game ID (no need rid)
  34 // and ask server for current joined (= observers)
  35 // when send to chat (or a move), reach only this group (send gid along)
  36 // -> doivent être enregistrés comme observers au niveau du serveur...
  37     // non: poll users + events startObserving / stopObserving
  38     // (à faire au niveau du routeur ?)
  39 -->
  40
  41 <script>
  42 import BaseGame from "@/components/BaseGame.vue";
  43 //import Chat from "@/components/Chat.vue";
  44 //import MoveList from "@/components/MoveList.vue";
  45 import { store } from "@/store";
  46 import { GameStorage } from "@/utils/gameStorage";
  47 import { ppt } from "@/utils/datetime";
  48
  49 export default {
  50   name: 'my-game',
  51   components: {
  52     BaseGame,
  53   },
  54   // gameRef: to find the game in (potentially remote) storage
  55   data: function() {
  56     return {
  57       st: store.state,
  58       gameRef: { //given in URL (rid = remote ID)
  59         id: "",
  60         rid: ""
  61       },
  62       game: { }, //passed to BaseGame
  63       oppConnected: false,
  64       corrMsg: "", //to send offline messages in corr games
  65       virtualClocks: [0, 0], //initialized with true game.clocks
  66       vr: null, //"variant rules" object initialized from FEN
  67       drawOffer: "", //TODO: use for button style
  68       people: [ ], //potential observers (TODO)
  69     };
  70   },
  71   watch: {
  72     '$route' (to, from) {
  73       if (!!to.params["id"])
  74       {
  75         this.gameRef.id = to.params["id"];
  76         this.gameRef.rid = to.query["rid"];
  77         this.loadGame();
  78       }
  79     },
  80     "game.clocks": function(newState) {
  81       this.virtualClocks = newState.map(s => ppt(s));
  82       const currentTurn = this.vr.turn;
  83       const colorIdx = ["w","b"].indexOf(currentTurn);
  84       let countdown = newState[colorIdx] -
  85         (Date.now() - this.game.initime[colorIdx])/1000;
  86       const myTurn = (currentTurn == this.game.mycolor);
  87       let clockUpdate = setInterval(() => {
  88         if (countdown <= 0 || this.vr.turn != currentTurn)
  89         {
  90           clearInterval(clockUpdate);
  91           if (countdown <= 0 && myTurn)
  92           {
  93             this.$refs["basegame"].endGame(
  94               this.game.mycolor=="w" ? "0-1" : "1-0", "Time");
  95             this.st.conn.send(JSON.stringify({
  96               code: "timeover",
  97               target: this.game.oppid,
  98             }));
  99           }
 100         }
 101         else
 102         {
 103           // TODO: with Vue 3, just do this.virtualClocks[colorIdx] = ppt(--countdown)
 104           this.$set(this.virtualClocks, colorIdx, ppt(Math.max(0, --countdown)));
 105         }
 106       }, 1000);
 107     },
 108   },
 109   created: function() {
 110     if (!!this.$route.params["id"])
 111     {
 112       this.gameRef.id = this.$route.params["id"];
 113       this.gameRef.rid = this.$route.query["rid"];
 114       this.loadGame();
 115     }
 116     const socketMessageListener = msg => {
 117       const data = JSON.parse(msg.data);
 118       switch (data.code)
 119       {
 120         case "newmove":
 121           // NOTE: next call will trigger processMove()
 122           this.$refs["basegame"].play(data.move,
 123             "receive", this.game.vname!="Dark" ? "animate" : null);
 124           break;
 125         case "pong": //received if we sent a ping (game still alive on our side)
 126         {
 127           this.oppConnected = true;
 128           // Send our "last state" informations to opponent(s)
 129           const L = this.game.moves.length;
 130           this.st.conn.send(JSON.stringify({
 131             code: "lastate",
 132             target: this.game.oppid,
 133             gameId: this.gameRef.id,
 134             lastMove: (L>0 ? this.game.moves[L-1] : undefined),
 135             score: this.game.score,
 136             movesCount: L,
 137             drawOffer: this.drawOffer,
 138             clocks: this.game.clocks,
 139           }));
 140           break;
 141         }
 142         case "lastate": //got opponent infos about last move
 143         {
 144           const L = this.game.moves.length;
 145           if (this.gameRef.id != data.gameId)
 146             break; //games IDs don't match: nothing we can do...
 147           // OK, opponent still in game (which might be over)
 148           if (data.movesCount > L)
 149           {
 150             // Just got last move from him
 151             this.$refs["basegame"].play(data.lastMove, "receive");
 152             if (data.score != "*" && this.game.score == "*")
 153             {
 154               // Opponent resigned or aborted game, or accepted draw offer
 155               // (this is not a stalemate or checkmate)
 156               this.$refs["basegame"].endGame(data.score, "Opponent action");
 157             }
 158             this.game.clocks = data.clocks;
 159             this.drawOffer = data.drawOffer;
 160           }
 161           else if (data.movesCount < L)
 162           {
 163             // We must tell last move to opponent
 164             this.st.conn.send(JSON.stringify({
 165               code: "lastate",
 166               target: this.game.oppid,
 167               gameId: this.gameRef.id,
 168               lastMove: (L>0 ? this.game.moves[L-1] : undefined),
 169               score: this.game.score,
 170               movesCount: L,
 171               drawOffer: this.drawOffer,
 172               clocks: this.game.clocks,
 173             }));
 174           }
 175           break;
 176         }
 177         case "resign":
 178           this.$refs["basegame"].endGame(
 179             this.game.mycolor=="w" ? "1-0" : "0-1", "Resign");
 180           break;
 181         case "timeover":
 182           this.$refs["basegame"].endGame(
 183             this.game.mycolor=="w" ? "1-0" : "0-1", "Time");
 184           break;
 185         case "abort":
 186           this.$refs["basegame"].endGame("?", "Abort: " + data.msg);
 187           break;
 188         // TODO: drawaccepted (click draw button before sending move ==> draw offer in move)
 189           // ==> on "newmove", check "drawOffer" field
 190         // TODO: also use (dis)connect info to count online players?
 191         case "gameconnect":
 192         case "gamedisconnect":
 193           const online = (data.code == "gameconnect");
 194           // If this is an opponent ?
 195           if (this.game.oppid == data.id)
 196             this.oppConnected = true;
 197           else
 198           {
 199             // Or an observer ?
 200             if (!online)
 201               delete this.people[data.id];
 202             else
 203               this.people[data.id] = data.name;
 204           }
 205           break;
 206       }
 207     };
 208     const socketCloseListener = () => {
 209       this.st.conn.addEventListener('message', socketMessageListener);
 210       this.st.conn.addEventListener('close', socketCloseListener);
 211     };
 212     this.st.conn.onmessage = socketMessageListener;
 213     this.st.conn.onclose = socketCloseListener;
 214   },
 215   methods: {
 216     offerDraw: function() {
 217       if (this.drawOffer == "received")
 218       {
 219         if (!confirm("Offer draw?"))
 220           return;
 221         this.st.conn.send(JSON.stringify({code:"draw", target:this.game.oppid}));
 222       else if (this.drawOffer == "sent")
 223         this.drawOffer = "";
 224       else
 225       {
 226         if (!confirm("Offer draw?"))
 227           return;
 228       // Stay in "draw offer sent" state until next move is played
 229       this.drawOfferSent = true;
 230       if (this.subMode == "corr")
 231       {
 232         // TODO: set drawOffer on in game (how ?)
 233       }
 234       else //live game
 235       {
 236         this.opponents.forEach(o => {
 237           if (!!o.online)
 238           {
 239             try {
 240             } catch (INVALID_STATE_ERR) {
 241               return;
 242             }
 243           }
 244         });
 245       }
 246     },
 247     // + conn handling: "draw" message ==> agree for draw (if we have "drawOffered" at true)
 248     receiveDrawOffer: function() {
 249       //if (...)
 250       // TODO: ignore if preventDrawOffer is set; otherwise show modal box with option "prevent future offers"
 251       // if accept: send message "draw"
 252     },
 253     abortGame: function(event) {
 254       let modalBox = document.getElementById("modalAbort");
 255       if (!event)
 256       {
 257         // First call show options:
 258         modalBox.checked = true;
 259       }
 260       else
 261       {
 262         modalBox.checked = false; //decision made: box disappear
 263         const message = event.target.innerText;
 264         // Next line will trigger a "gameover" event, bubbling up till here
 265         this.$refs["basegame"].endGame("?", "Abort: " + message);
 266         this.st.conn.send(JSON.stringify({
 267           code: "abort",
 268           msg: message,
 269           target: this.game.oppid,
 270         }));
 271       }
 272     },
 273     resign: function(e) {
 274       if (!confirm("Resign the game?"))
 275         return;
 276       this.st.conn.send(JSON.stringify({
 277         code: "resign",
 278         target: this.game.oppid,
 279       }));
 280       // Next line will trigger a "gameover" event, bubbling up till here
 281       this.$refs["basegame"].endGame(
 282         this.game.mycolor=="w" ? "0-1" : "1-0", "Resign");
 283     },
 284     // 3 cases for loading a game:
 285     //  - from indexedDB (running or completed live game I play)
 286     //  - from server (one correspondance game I play[ed] or not)
 287     //  - from remote peer (one live game I don't play, finished or not)
 288     loadGame: function(game) {
 289       const afterRetrieval = async (game) => {
 290         const vModule = await import("@/variants/" + game.vname + ".js");
 291         window.V = vModule.VariantRules;
 292         this.vr = new V(game.fen);
 293         const myIdx = game.players.findIndex(p => p.sid == this.st.user.sid);
 294         this.game = Object.assign({},
 295           game,
 296           // NOTE: assign mycolor here, since BaseGame could also bs VS computer
 297           {
 298             mycolor: [undefined,"w","b"][myIdx+1],
 299             // opponent sid not strictly required, but easier
 300             oppid: (myIdx < 0 ? undefined : game.players[1-myIdx].sid),
 301           }
 302         );
 303         if (!!this.game.oppid)
 304         {
 305           // Send ping to server (answer pong if players[s] are connected)
 306           this.st.conn.send(JSON.stringify({code:"ping", target:this.game.oppid}));
 307         }
 308       };
 309       if (!!game)
 310         return afterRetrival(game);
 311       if (!!this.gameRef.rid)
 312       {
 313         // TODO: just send a game request message to the remote player,
 314         // and when receiving answer just call loadGame(received_game)
 315         // + remote peer should have registered us as an observer
 316         // (send moves updates + resign/abort/draw actions)
 317       }
 318       else
 319       {
 320         GameStorage.get(this.gameRef.id, async (game) => {
 321           afterRetrieval(game);
 322         });
 323       }
 324     },
 325     // Post-process a move (which was just played)
 326     processMove: function(move) {
 327       if (!this.game.mycolor)
 328         return; //I'm just an observer
 329       // Update storage (corr or live)
 330       const colorIdx = ["w","b"].indexOf(move.color);
 331       // https://stackoverflow.com/a/38750895
 332       const allowed_fields = ["appear", "vanish", "start", "end"];
 333       const filtered_move = Object.keys(move)
 334         .filter(key => allowed_fields.includes(key))
 335         .reduce((obj, key) => {
 336           obj[key] = move[key];
 337           return obj;
 338         }, {});
 339       // Send move ("newmove" event) to opponent(s) (if ours)
 340       let addTime = undefined;
 341       if (move.color == this.game.mycolor)
 342       {
 343         const elapsed = Date.now() - this.game.initime[colorIdx];
 344         // elapsed time is measured in milliseconds
 345         addTime = this.game.increment - elapsed/1000;
 346         this.st.conn.send(JSON.stringify({
 347           code: "newmove",
 348           target: this.game.oppid,
 349           move: Object.assign({}, filtered_move, {addTime: addTime}),
 350         }));
 351       }
 352       else
 353         addTime = move.addTime; //supposed transmitted
 354       const nextIdx = ["w","b"].indexOf(this.vr.turn);
 355       GameStorage.update(this.gameRef.id,
 356       {
 357         colorIdx: colorIdx,
 358         nextIdx: nextIdx,
 359         move: filtered_move,
 360         fen: move.fen,
 361         addTime: addTime,
 362       });
 363       // Also update current game object:
 364       this.game.moves.push(move);
 365       this.game.fen = move.fen;
 366       //TODO: just this.game.clocks[colorIdx] += (!!addTime ? addTime : 0);
 367       this.$set(this.game.clocks, colorIdx,
 368         this.game.clocks[colorIdx] + (!!addTime ? addTime : 0));
 369       this.game.initime[nextIdx] = Date.now();
 370     },
 371     // TODO: this update function should also work for corr games
 372     gameOver: function(score) {
 373       this.game.mode = "analyze";
 374       GameStorage.update(this.gameRef.id,
 375       {
 376         score: score,
 377       });
 378     },
 379   },
 380 };
 381 </script>