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     .button-group(v-if="game.mode!='analyze'")
   7       button(@click="offerDraw") Draw
   8       button(@click="abortGame") Abort
   9       button(@click="resign") Resign
  10     div(v-if="game.mode=='corr'")
  11       textarea(v-show="score=='*' && vr.turn==game.mycolor" v-model="corrMsg")
  12       div(v-show="cursor>=0") {{ moves[cursor].message }}
  13 </template>
  14
  15 <script>
  16 import BaseGame from "@/components/BaseGame.vue";
  17 //import Chat from "@/components/Chat.vue";
  18 //import MoveList from "@/components/MoveList.vue";
  19 import { store } from "@/store";
  20 import { GameStorage } from "@/utils/storage";
  21
  22 export default {
  23   name: 'my-game',
  24   components: {
  25     BaseGame,
  26   },
  27   // gameRef: to find the game in (potentially remote) storage
  28   data: function() {
  29     return {
  30       st: store.state,
  31       gameRef: { //given in URL (rid = remote ID)
  32         id: "",
  33         rid: ""
  34       },
  35       game: { }, //passed to BaseGame
  36       vr: null, //"variant rules" object initialized from FEN
  37       drawOfferSent: false, //did I just ask for draw? (TODO: use for button style)
  38       people: [ ], //potential observers (TODO)
  39     };
  40   },
  41   watch: {
  42     '$route' (to, from) {
  43       if (!!to.params["id"])
  44       {
  45         this.gameRef.id = to.params["id"];
  46         this.gameRef.rid = to.query["rid"];
  47         this.loadGame();
  48       }
  49     },
  50   },
  51   created: function() {
  52     if (!!this.$route.params["id"])
  53     {
  54       this.gameRef.id = this.$route.params["id"];
  55       this.gameRef.rid = this.$route.query["rid"];
  56       this.loadGame();
  57     }
  58     // TODO: how to know who is observing ? Send message to everyone with game ID ?
  59     // and then just listen to (dis)connect events
  60     // server always send "connect on " + URL ; then add to observers if game...
  61     // detect multiple tabs connected (when connect ask server if my SID is already in use)
  62 // router when access a game page tell to server I joined + game ID (no need rid)
  63 // and ask server for current joined (= observers)
  64 // when send to chat (or a move), reach only this group (send gid along)
  65     // --> doivent être enregistrés comme observers au niveau du serveur...
  66     // non: poll users + events startObserving / stopObserving
  67     // (à faire au niveau du routeur ?)
  68
  69     // TODO: also handle "draw accepted" (use opponents array?)
  70     // --> must give this info also when sending lastState...
  71     // and, if all players agree then OK draw (end game ...etc)
  72     const socketMessageListener = msg => {
  73       const data = JSON.parse(msg.data);
  74       let L = undefined;
  75       switch (data.code)
  76       {
  77         case "newmove":
  78           // TODO: observer on dark games must see all board ? Or alternate ? (seems better)
  79           // ...or just see nothing as on buho21
  80           // NOTE: next call will trigger processMove()
  81           this.$refs["basegame"].play(data.move,
  82             "receive", this.game.vname!="Dark" ? "animate" : null);
  83           break;
  84         case "pong": //received if we sent a ping (game still alive on our side)
  85           if (this.gameRef.id != data.gameId)
  86             break; //games IDs don't match: the game is definitely over...
  87           this.oppConnected = true;
  88           // Send our "last state" informations to opponent(s)
  89           L = this.vr.moves.length;
  90           Object.keys(this.opponents).forEach(oid => {
  91             this.st.conn.send(JSON.stringify({
  92               code: "lastate",
  93               oppid: oid,
  94               gameId: this.gameRef.id,
  95               lastMove: (L>0?this.vr.moves[L-1]:undefined),
  96               movesCount: L,
  97             }));
  98           });
  99           break;
 100         // TODO: refactor this, because at 3 or 4 players we may have missed 2 or 3 moves
 101         // TODO: need to send along clock state (my current time) with my last move
 102         case "lastate": //got opponent infos about last move
 103           L = this.vr.moves.length;
 104           if (this.gameRef.id != data.gameId)
 105             break; //games IDs don't match: nothing we can do...
 106           // OK, opponent still in game (which might be over)
 107           if (this.score != "*")
 108           {
 109             // We finished the game (any result possible)
 110             this.st.conn.send(JSON.stringify({
 111               code: "lastate",
 112               oppid: data.oppid,
 113               gameId: this.gameRef.id,
 114               score: this.score,
 115             }));
 116           }
 117           else if (!!data.score) //opponent finished the game
 118             this.endGame(data.score);
 119           else if (data.movesCount < L)
 120           {
 121             // We must tell last move to opponent
 122             this.st.conn.send(JSON.stringify({
 123               code: "lastate",
 124               oppid: this.opponent.id,
 125               gameId: this.gameRef.id,
 126               lastMove: this.vr.moves[L-1],
 127               movesCount: L,
 128             }));
 129           }
 130           else if (data.movesCount > L) //just got last move from him
 131             this.play(data.lastMove, "animate"); //TODO: wrong call (3 args)
 132           break;
 133         case "resign":
 134           this.$refs["basegame"].endGame(
 135             this.game.mycolor=="w" ? "1-0" : "0-1", "Resign");
 136           break;
 137         case "timeover":
 138           this.$refs["basegame"].endGame(
 139             this.game.mycolor=="w" ? "1-0" : "0-1", "Time");
 140           break;
 141         case "abort":
 142           this.$refs["basegame"].endGame("?", "Abort: " + data.msg);
 143           break;
 144         // TODO: drawaccepted (click draw button before sending move ==> draw offer in move)
 145           // ==> on "newmove", check "drawOffer" field
 146         // TODO: also use (dis)connect info to count online players?
 147         case "gameconnect":
 148         case "gamedisconnect":
 149           if (this.mode=="human")
 150           {
 151             const online = (data.code == "connect");
 152             // If this is an opponent ?
 153             if (!!this.opponents[data.id])
 154               this.opponents[data.id].online = online;
 155             else
 156             {
 157               // Or an observer ?
 158               if (!online)
 159                 delete this.people[data.id];
 160               else
 161                 this.people[data.id] = data.name;
 162             }
 163           }
 164           break;
 165       }
 166     };
 167     const socketCloseListener = () => {
 168       this.st.conn.addEventListener('message', socketMessageListener);
 169       this.st.conn.addEventListener('close', socketCloseListener);
 170     };
 171     this.st.conn.onmessage = socketMessageListener;
 172     this.st.conn.onclose = socketCloseListener;
 173   },
 174   // dans variant.js (plutôt room.js) conn gère aussi les challenges
 175   // et les chats dans chat.js. Puis en webRTC, repenser tout ça.
 176   methods: {
 177     offerDraw: function() {
 178       if (!confirm("Offer draw?"))
 179         return;
 180       // Stay in "draw offer sent" state until next move is played
 181       this.drawOfferSent = true;
 182       if (this.subMode == "corr")
 183       {
 184         // TODO: set drawOffer on in game (how ?)
 185       }
 186       else //live game
 187       {
 188         this.opponents.forEach(o => {
 189           if (!!o.online)
 190           {
 191             try {
 192               this.st.conn.send(JSON.stringify({code: "draw", oppid: o.id}));
 193             } catch (INVALID_STATE_ERR) {
 194               return;
 195             }
 196           }
 197         });
 198       }
 199     },
 200     // + conn handling: "draw" message ==> agree for draw (if we have "drawOffered" at true)
 201     receiveDrawOffer: function() {
 202       //if (...)
 203       // TODO: ignore if preventDrawOffer is set; otherwise show modal box with option "prevent future offers"
 204       // if accept: send message "draw"
 205     },
 206     abortGame: function() {
 207       if (!confirm("Abort the game?"))
 208         return;
 209
 210 // Abort possible à tout moment avec message
 211 // Sorry I have to go / Game seems over / Game is not interesting
 212
 213       //+ bouton "abort" avec score == "?" + demander confirmation pour toutes ces actions,
 214       //send message: "gameOver" avec score "?"
 215       // ==> BaseGame must listen to game.score change, and call "endgame(score)" in this case
 216     },
 217     resign: function(e) {
 218       if (!confirm("Resign the game?"))
 219         return;
 220       this.game.players.forEach(p => {
 221         if (!!p.sid && p.sid != this.st.user.sid)
 222         {
 223           this.st.conn.send(JSON.stringify({
 224             code: "resign",
 225             target: p.sid,
 226           }));
 227         }
 228       });
 229       // Next line will trigger a "gameover" event, bubbling up till here
 230       this.$refs["basegame"].endGame(this.game.mycolor=="w" ? "0-1" : "1-0");
 231     },
 232     // 4 cases for loading a game:
 233     //  - from localStorage (one running game I play)
 234     //  - from indexedDB (one completed live game)
 235     //  - from server (one correspondance game I play[ed] or not)
 236     //  - from remote peer (one live game I don't play, finished or not)
 237     loadGame: function() {
 238       GameStorage.get(this.gameRef, async (game) => {
 239         this.game = Object.assign({},
 240           game,
 241           // NOTE: assign mycolor here, since BaseGame could also bs VS computer
 242           {mycolor: [undefined,"w","b"][1 + game.players.findIndex(
 243             p => p.sid == this.st.user.sid)]},
 244         );
 245         const vModule = await import("@/variants/" + game.vname + ".js");
 246         window.V = vModule.VariantRules;
 247         this.vr = new V(game.fen);
 248         // Post-processing: decorate each move with current FEN:
 249         // (to be able to jump to any position quickly)
 250         game.moves.forEach(move => {
 251           // NOTE: this is doing manually what BaseGame.play() achieve...
 252           // but in a lighter "fast-forward" way
 253           move.color = this.vr.turn;
 254           this.vr.play(move);
 255           move.fen = this.vr.getFen();
 256         });
 257         this.vr.re_init(game.fen);
 258       });
 259 //    // Poll all players except me (if I'm playing) to know online status.
 260 //    // --> Send ping to server (answer pong if players[s] are connected)
 261 //    if (this.gameInfo.players.some(p => p.sid == this.st.user.sid))
 262 //    {
 263 //      this.game.players.forEach(p => {
 264 //        if (p.sid != this.st.user.sid)
 265 //          this.st.conn.send(JSON.stringify({code:"ping", oppid:p.sid}));
 266 //      });
 267 //    }
 268     },
 269     // TODO: refactor this old "oppConnected" logic
 270 //    oppConnected: function(uid) {
 271 //      return this.opponents.some(o => o.id == uid && o.online);
 272 //    },
 273     // Post-process a move (which was just played)
 274     processMove: function(move) {
 275       if (!this.game.mycolor)
 276         return; //I'm just an observer
 277       // Update storage (corr or live)
 278       const colorIdx = ["w","b","g","r"].indexOf(move.color);
 279       // https://stackoverflow.com/a/38750895
 280       const allowed_fields = ["appear", "vanish", "start", "end"];
 281       const filtered_move = Object.keys(move)
 282         .filter(key => allowed_fields.includes(key))
 283         .reduce((obj, key) => {
 284           obj[key] = move[key];
 285           return obj;
 286         }, {});
 287       // Send move ("newmove" event) to opponent(s) (if ours)
 288       // (otherwise move.elapsed is supposed to be already transmitted)
 289       let addTime = undefined;
 290       if (move.color == this.game.mycolor)
 291       {
 292         const elapsed = Date.now() - GameStorage.getInitime();
 293         this.game.players.forEach(p => {
 294           if (p.sid != this.st.user.sid)
 295           {
 296             this.st.conn.send(JSON.stringify({
 297               code: "newmove",
 298               target: p.sid,
 299               move: Object.assign({}, filtered_move, {elapsed: elapsed}),
 300             }));
 301           }
 302         });
 303         move.elapsed = elapsed;
 304         // elapsed time is measured in milliseconds
 305         addTime = this.game.increment - elapsed/1000;
 306       }
 307       GameStorage.update({
 308         colorIdx: colorIdx,
 309         move: filtered_move,
 310         fen: move.fen,
 311         addTime: addTime,
 312         initime: (this.vr.turn == this.game.mycolor), //my turn now?
 313       });
 314     },
 315     // TODO: this update function should also work for corr games
 316     gameOver: function(score) {
 317       this.game.mode = "analyze";
 318       GameStorage.update({
 319         score: score,
 320       });
 321     },
 322   },
 323 };
 324 </script>