client/src/views/Game.vue

   1 <!-- TODO: component Game, + handle players + observers connect/disconnect
   2   event = "gameconnect" ...etc
   3   connect/disconnect with sid+name (ID not required); name slightly redundant but easier
   4 quand on arrive dans la partie, on poll les sids pour savoir qui est en ligne (ping)
   5 (éventuel échange lastate avec les connectés, pong ...etc)
   6 ensuite quand qqun se deco il suffit d'écouter "disconnect"
   7 pareil quand quelqu'un reco.
   8 (c'est assez rudimentaire et écoute trop de messages, mais dans un premier temps...)
   9       // TODO: [in game] send move + elapsed time (in milliseconds); in case of "lastate" message too
  10 // TODO: if I'm an observer and player(s) disconnect/reconnect, how to find me ?
  11 //      onClick :: ask full game to remote player, and register as an observer in game
  12 //      (use gameId to communicate)
  13 //      on landing on game :: if gameId not found locally, check remotely
  14 //      ==> il manque un param dans game : "remoteId"
  15 -->
  16 <template lang="pug">
  17 .row
  18   .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
  19     BaseGame(:game="game" :vr="vr" ref="basegame"
  20       @newmove="processMove" @gameover="gameOver")
  21     .button-group(v-if="game.mode!='analyze'")
  22       button(@click="offerDraw") Draw
  23       button(@click="abortGame") Abort
  24       button(@click="resign") Resign
  25     div(v-if="game.mode=='corr'")
  26       textarea(v-show="score=='*' && vr.turn==game.mycolor" v-model="corrMsg")
  27       div(v-show="cursor>=0") {{ moves[cursor].message }}
  28 </template>
  29
  30 <script>
  31 import BaseGame from "@/components/BaseGame.vue";
  32 //import Chat from "@/components/Chat.vue";
  33 //import MoveList from "@/components/MoveList.vue";
  34 import { store } from "@/store";
  35 import { GameStorage } from "@/utils/storage";
  36
  37 export default {
  38   name: 'my-game',
  39   components: {
  40     BaseGame,
  41   },
  42   // gameRef: to find the game in (potentially remote) storage
  43   data: function() {
  44     return {
  45       st: store.state,
  46       gameRef: { //given in URL (rid = remote ID)
  47         id: "",
  48         rid: ""
  49       },
  50       game: { }, //passed to BaseGame
  51       vr: null, //"variant rules" object initialized from FEN
  52       drawOfferSent: false, //did I just ask for draw? (TODO: draw variables?)
  53       people: [ ], //potential observers (TODO)
  54     };
  55   },
  56   watch: {
  57     '$route' (to, from) {
  58       if (!!to.params["id"])
  59       {
  60         this.gameRef.id = to.params["id"];
  61         this.gameRef.rid = to.query["rid"];
  62         this.loadGame();
  63       }
  64     },
  65   },
  66   created: function() {
  67     if (!!this.$route.params["id"])
  68     {
  69       this.gameRef.id = this.$route.params["id"];
  70       this.gameRef.rid = this.$route.query["rid"];
  71       this.loadGame();
  72     }
  73     // TODO: how to know who is observing ? Send message to everyone with game ID ?
  74     // and then just listen to (dis)connect events
  75
  76
  77     // server always send "connect on " + URL ; then add to observers if game...
  78     // detect multiple tabs connected (when connect ask server if my SID is already in use)
  79 // router when access a game page tell to server I joined + game ID (no need rid)
  80 // and ask server for current joined (= observers)
  81 // when send to chat (or a move), reach only this group (send gid along)
  82
  83     // --> doivent être enregistrés comme observers au niveau du serveur...
  84     // non: poll users + events startObserving / stopObserving
  85     // (à faire au niveau du routeur ?)
  86
  87
  88     // TODO: also handle "draw accepted" (use opponents array?)
  89     // --> must give this info also when sending lastState...
  90     // and, if all players agree then OK draw (end game ...etc)
  91     const socketMessageListener = msg => {
  92       const data = JSON.parse(msg.data);
  93       let L = undefined;
  94       switch (data.code)
  95       {
  96         case "newmove":
  97           // TODO: observer on dark games must see all board ? Or alternate ? (seems better)
  98           // ...or just see nothing as on buho21
  99           this.$refs["basegame"].play(
 100             data.move, this.game.vname!="Dark" ? "animate" : null);
 101           this.processMove(data.move);
 102
 103
 104
 105 // TODO:
 106 // send filtered_move + elapsed time
 107 // receive same. (update clock) + update (our) initime if it's my turn
 108 // + update fen (using vr.getFen())
 109
 110
 111
 112
 113           break;
 114         case "pong": //received if we sent a ping (game still alive on our side)
 115           if (this.gameRef.id != data.gameId)
 116             break; //games IDs don't match: the game is definitely over...
 117           this.oppConnected = true;
 118           // Send our "last state" informations to opponent(s)
 119           L = this.vr.moves.length;
 120           Object.keys(this.opponents).forEach(oid => {
 121             this.st.conn.send(JSON.stringify({
 122               code: "lastate",
 123               oppid: oid,
 124               gameId: this.gameRef.id,
 125               lastMove: (L>0?this.vr.moves[L-1]:undefined),
 126               movesCount: L,
 127             }));
 128           });
 129           break;
 130         // TODO: refactor this, because at 3 or 4 players we may have missed 2 or 3 moves
 131         case "lastate": //got opponent infos about last move
 132           L = this.vr.moves.length;
 133           if (this.gameRef.id != data.gameId)
 134             break; //games IDs don't match: nothing we can do...
 135           // OK, opponent still in game (which might be over)
 136           if (this.score != "*")
 137           {
 138             // We finished the game (any result possible)
 139             this.st.conn.send(JSON.stringify({
 140               code: "lastate",
 141               oppid: data.oppid,
 142               gameId: this.gameRef.id,
 143               score: this.score,
 144             }));
 145           }
 146           else if (!!data.score) //opponent finished the game
 147             this.endGame(data.score);
 148           else if (data.movesCount < L)
 149           {
 150             // We must tell last move to opponent
 151             this.st.conn.send(JSON.stringify({
 152               code: "lastate",
 153               oppid: this.opponent.id,
 154               gameId: this.gameRef.id,
 155               lastMove: this.vr.moves[L-1],
 156               movesCount: L,
 157             }));
 158           }
 159           else if (data.movesCount > L) //just got last move from him
 160             this.play(data.lastMove, "animate");
 161           break;
 162         case "resign": //..you won!
 163           this.endGame(this.game.mycolor=="w"?"1-0":"0-1");
 164           break;
 165         // TODO: also use (dis)connect info to count online players?
 166         case "gameconnect":
 167         case "gamedisconnect":
 168           if (this.mode=="human")
 169           {
 170             const online = (data.code == "connect");
 171             // If this is an opponent ?
 172             if (!!this.opponents[data.id])
 173               this.opponents[data.id].online = online;
 174             else
 175             {
 176               // Or an observer ?
 177               if (!online)
 178                 delete this.people[data.id];
 179               else
 180                 this.people[data.id] = data.name;
 181             }
 182           }
 183           break;
 184       }
 185     };
 186     const socketCloseListener = () => {
 187       this.st.conn.addEventListener('message', socketMessageListener);
 188       this.st.conn.addEventListener('close', socketCloseListener);
 189     };
 190     this.st.conn.onmessage = socketMessageListener;
 191     this.st.conn.onclose = socketCloseListener;
 192   },
 193   // dans variant.js (plutôt room.js) conn gère aussi les challenges
 194   // et les chats dans chat.js. Puis en webRTC, repenser tout ça.
 195   methods: {
 196     offerDraw: function() {
 197       if (!confirm("Offer draw?"))
 198         return;
 199       // Stay in "draw offer sent" state until next move is played
 200       this.drawOfferSent = true;
 201       if (this.subMode == "corr")
 202       {
 203         // TODO: set drawOffer on in game (how ?)
 204       }
 205       else //live game
 206       {
 207         this.opponents.forEach(o => {
 208           if (!!o.online)
 209           {
 210             try {
 211               this.st.conn.send(JSON.stringify({code: "draw", oppid: o.id}));
 212             } catch (INVALID_STATE_ERR) {
 213               return;
 214             }
 215           }
 216         });
 217       }
 218     },
 219     // + conn handling: "draw" message ==> agree for draw (if we have "drawOffered" at true)
 220     receiveDrawOffer: function() {
 221       //if (...)
 222       // TODO: ignore if preventDrawOffer is set; otherwise show modal box with option "prevent future offers"
 223       // if accept: send message "draw"
 224     },
 225     abortGame: function() {
 226       if (!confirm("Abort the game?"))
 227         return;
 228       //+ bouton "abort" avec score == "?" + demander confirmation pour toutes ces actions,
 229       //send message: "gameOver" avec score "?"
 230       // ==> BaseGame must listen to game.score change, and call "endgame(score)" in this case
 231     },
 232     resign: function(e) {
 233       if (!confirm("Resign the game?"))
 234         return;
 235       if (this.mode == "human" && this.oppConnected(this.oppid))
 236       {
 237         try {
 238           this.st.conn.send(JSON.stringify({code: "resign", oppid: this.oppid}));
 239         } catch (INVALID_STATE_ERR) {
 240           return;
 241         }
 242       }
 243       this.endGame(this.mycolor=="w"?"0-1":"1-0");
 244     },
 245     // 4 cases for loading a game:
 246     //  - from localStorage (one running game I play)
 247     //  - from indexedDB (one completed live game)
 248     //  - from server (one correspondance game I play[ed] or not)
 249     //  - from remote peer (one live game I don't play, finished or not)
 250     loadGame: function() {
 251       GameStorage.get(this.gameRef, async (game) => {
 252         this.game = Object.assign({},
 253           game,
 254           // NOTE: assign mycolor here, since BaseGame could also bs VS computer
 255           {mycolor: [undefined,"w","b"][1 + game.players.findIndex(
 256             p => p.sid == this.st.user.sid)]},
 257         );
 258         const vModule = await import("@/variants/" + game.vname + ".js");
 259         window.V = vModule.VariantRules;
 260         this.vr = new V(game.fen);
 261         // Post-processing: decorate each move with current FEN:
 262         // (to be able to jump to any position quickly)
 263         game.moves.forEach(move => {
 264           move.color = this.vr.turn;
 265           vr.play(move);
 266           move.fen = this.vr.getFen();
 267         });
 268         this.vr.re_init(game.fen);
 269       });
 270 //    // Poll all players except me (if I'm playing) to know online status.
 271 //    // --> Send ping to server (answer pong if players[s] are connected)
 272 //    if (this.gameInfo.players.some(p => p.sid == this.st.user.sid))
 273 //    {
 274 //      this.game.players.forEach(p => {
 275 //        if (p.sid != this.st.user.sid)
 276 //          this.st.conn.send(JSON.stringify({code:"ping", oppid:p.sid}));
 277 //      });
 278 //    }
 279     },
 280     // TODO: refactor this old "oppConnected" logic
 281     oppConnected: function(uid) {
 282       return this.opponents.some(o => o.id == uid && o.online);
 283     },
 284     // Post-process a move (which was just played)
 285     processMove: function(move) {
 286       if (!this.game.mycolor)
 287         return; //I'm just an observer
 288       // Update storage (corr or live)
 289       const colorIdx = ["w","b","g","r"][move.color];
 290       // https://stackoverflow.com/a/38750895
 291       const allowed_fields = ["appear", "vanish", "start", "end"];
 292       const filtered_move = Object.keys(move)
 293         .filter(key => allowed_fields.includes(key))
 294         .reduce((obj, key) => {
 295           obj[key] = raw[key];
 296           return obj;
 297         }, {});
 298       // Send move ("newmove" event) to opponent(s) (if ours)
 299       // (otherwise move.elapsed is supposed to be already transmitted)
 300       if (move.color == this.game.mycolor)
 301       {
 302         const elapsed = Date.now() - GameStorage.getInitime();
 303         this.game.players.forEach(p => {
 304           if (p.sid != this.st.user.sid)
 305             this.st.conn.send("newmove",
 306             {
 307               target: p.sid,
 308               move: Object.assign({}, filtered_move, {elapsed: elapsed}),
 309             });
 310         });
 311         move.elapsed = elapsed;
 312       }
 313       GameStorage.update({
 314         colorIdx: colorIdx,
 315         move: filtered_move,
 316         fen: move.fen,
 317         elapsed: move.elapsed,
 318         increment: this.game.increment, //redundant but faster
 319         initime: (this.vr.turn == this.game.mycolor), //it's my turn
 320       });
 321     },
 322     // NOTE: this update function should also work for corr games
 323     gameOver: function(score) {
 324       GameStorage.update({
 325         score: score,
 326       });
 327     },
 328   },
 329 };
 330 </script>
 331
 332 <!-- TODO:
 333 // Abort possible à tout moment avec message
 334 // Sorry I have to go / Game seems over / Game is not interesting
 335 // code "T" pour score "perte au temps" ?
 336 -->