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(:vname="game.vname" :game="game" :analyze="analyze" :vr="vr"
  20       ref="basegame" @newmove="processMove")
  21     .button-group(v-if="mode!='analyze'")
  22       button(@click="offerDraw") Draw
  23       button(@click="abortGame") Abort
  24       button(@click="resign") Resign
  25     div(v-if="mode=='corr'")
  26       textarea(v-show="score=='*' && vr.turn==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   // mode: "live" or "corr" (correspondance game), or "analyze"
  44   data: function() {
  45     return {
  46       st: store.state,
  47       gameRef: {id: "", rid: ""}, //given in URL (rid = remote ID)
  48       game: {}, //passed to BaseGame
  49       vr: null, //TODO
  50       mode: "analyze", //mutable
  51       drawOfferSent: false, //did I just ask for draw? (TODO: draw variables?)
  52       people: [], //potential observers (TODO)
  53     };
  54   },
  55   computed: {
  56     analyze: function() {
  57       return this.mode == "analyze";
  58     },
  59   },
  60   watch: {
  61     '$route' (to, from) {
  62       if (!!to.params["id"])
  63       {
  64         this.gameRef.id = to.params["id"];
  65         this.gameRef.rid = to.query["rid"];
  66         this.loadGame();
  67       }
  68     },
  69   },
  70   created: function() {
  71     if (!!this.$route.params["id"])
  72     {
  73       this.gameRef.id = this.$route.params["id"];
  74       this.gameRef.rid = this.$route.query["rid"];
  75       this.loadGame();
  76     }
  77     // TODO: how to know who is observing ? Send message to everyone with game ID ?
  78     // and then just listen to (dis)connect events
  79
  80
  81     // server always send "connect on " + URL ; then add to observers if game...
  82     // detect multiple tabs connected (when connect ask server if my SID is already in use)
  83 // router when access a game page tell to server I joined + game ID (no need rid)
  84 // and ask server for current joined (= observers)
  85 // when send to chat (or a move), reach only this group (send gid along)
  86
  87     // --> doivent être enregistrés comme observers au niveau du serveur...
  88     // non: poll users + events startObserving / stopObserving
  89
  90
  91     // TODO: also handle "draw accepted" (use opponents array?)
  92     // --> must give this info also when sending lastState...
  93     // and, if all players agree then OK draw (end game ...etc)
  94     const socketMessageListener = msg => {
  95       const data = JSON.parse(msg.data);
  96       let L = undefined;
  97       switch (data.code)
  98       {
  99         case "newmove":
 100           // TODO: observer on dark games must see all board ? Or alternate ? (seems better)
 101           // ...or just see nothing as on buho21
 102           this.$refs["basegame"].play(
 103             data.move, this.game.vname!="Dark" ? "animate" : null);
 104           break;
 105         case "pong": //received if we sent a ping (game still alive on our side)
 106           if (this.gameRef.id != data.gameId)
 107             break; //games IDs don't match: the game is definitely over...
 108           this.oppConnected = true;
 109           // Send our "last state" informations to opponent(s)
 110           L = this.vr.moves.length;
 111           Object.keys(this.opponents).forEach(oid => {
 112             this.conn.send(JSON.stringify({
 113               code: "lastate",
 114               oppid: oid,
 115               gameId: this.gameRef.id,
 116               lastMove: (L>0?this.vr.moves[L-1]:undefined),
 117               movesCount: L,
 118             }));
 119           });
 120           break;
 121         // TODO: refactor this, because at 3 or 4 players we may have missed 2 or 3 moves
 122         case "lastate": //got opponent infos about last move
 123           L = this.vr.moves.length;
 124           if (this.gameRef.id != data.gameId)
 125             break; //games IDs don't match: nothing we can do...
 126           // OK, opponent still in game (which might be over)
 127           if (this.score != "*")
 128           {
 129             // We finished the game (any result possible)
 130             this.conn.send(JSON.stringify({
 131               code: "lastate",
 132               oppid: data.oppid,
 133               gameId: this.gameRef.id,
 134               score: this.score,
 135             }));
 136           }
 137           else if (!!data.score) //opponent finished the game
 138             this.endGame(data.score);
 139           else if (data.movesCount < L)
 140           {
 141             // We must tell last move to opponent
 142             this.conn.send(JSON.stringify({
 143               code: "lastate",
 144               oppid: this.opponent.id,
 145               gameId: this.gameRef.id,
 146               lastMove: this.vr.moves[L-1],
 147               movesCount: L,
 148             }));
 149           }
 150           else if (data.movesCount > L) //just got last move from him
 151             this.play(data.lastMove, "animate");
 152           break;
 153         case "resign": //..you won!
 154           this.endGame(this.mycolor=="w"?"1-0":"0-1");
 155           break;
 156         // TODO: also use (dis)connect info to count online players?
 157         case "gameconnect":
 158         case "gamedisconnect":
 159           if (this.mode=="human")
 160           {
 161             const online = (data.code == "connect");
 162             // If this is an opponent ?
 163             if (!!this.opponents[data.id])
 164               this.opponents[data.id].online = online;
 165             else
 166             {
 167               // Or an observer ?
 168               if (!online)
 169                 delete this.people[data.id];
 170               else
 171                 this.people[data.id] = data.name;
 172             }
 173           }
 174           break;
 175       }
 176     };
 177     const socketCloseListener = () => {
 178       this.conn.addEventListener('message', socketMessageListener);
 179       this.conn.addEventListener('close', socketCloseListener);
 180     };
 181     if (!!this.conn)
 182     {
 183       this.conn.onmessage = socketMessageListener;
 184       this.conn.onclose = socketCloseListener;
 185     }
 186   },
 187   // dans variant.js (plutôt room.js) conn gère aussi les challenges
 188   // et les chats dans chat.js. Puis en webRTC, repenser tout ça.
 189   methods: {
 190     offerDraw: function() {
 191       if (!confirm("Offer draw?"))
 192         return;
 193       // Stay in "draw offer sent" state until next move is played
 194       this.drawOfferSent = true;
 195       if (this.subMode == "corr")
 196       {
 197         // TODO: set drawOffer on in game (how ?)
 198       }
 199       else //live game
 200       {
 201         this.opponents.forEach(o => {
 202           if (!!o.online)
 203           {
 204             try {
 205               this.conn.send(JSON.stringify({code: "draw", oppid: o.id}));
 206             } catch (INVALID_STATE_ERR) {
 207               return;
 208             }
 209           }
 210         });
 211       }
 212     },
 213     // + conn handling: "draw" message ==> agree for draw (if we have "drawOffered" at true)
 214     receiveDrawOffer: function() {
 215       //if (...)
 216       // TODO: ignore if preventDrawOffer is set; otherwise show modal box with option "prevent future offers"
 217       // if accept: send message "draw"
 218     },
 219     abortGame: function() {
 220       if (!confirm("Abort the game?"))
 221         return;
 222       //+ bouton "abort" avec score == "?" + demander confirmation pour toutes ces actions,
 223       //send message: "gameOver" avec score "?"
 224     },
 225     resign: function(e) {
 226       if (!confirm("Resign the game?"))
 227         return;
 228       if (this.mode == "human" && this.oppConnected(this.oppid))
 229       {
 230         try {
 231           this.conn.send(JSON.stringify({code: "resign", oppid: this.oppid}));
 232         } catch (INVALID_STATE_ERR) {
 233           return;
 234         }
 235       }
 236       this.endGame(this.mycolor=="w"?"0-1":"1-0");
 237     },
 238     // 4 cases for loading a game:
 239     //  - from localStorage (one running game I play)
 240     //  - from indexedDB (one completed live game)
 241     //  - from server (one correspondance game I play[ed] or not)
 242     //  - from remote peer (one live game I don't play, finished or not)
 243     loadGame: async function() {
 244       GameStorage.get(this.gameRef, (game) => {
 245         this.gameInfo =
 246         this.vname = game.vname;
 247         this.mode = game.mode;
 248         const vModule = await import("@/variants/" + this.vname + ".js");
 249         window.V = vModule.VariantRules;
 250         this.vr = new V(this.gameInfo.fen);
 251       });
 252 //    // Poll all players except me (if I'm playing) to know online status.
 253 //    // --> Send ping to server (answer pong if players[s] are connected)
 254 //    if (this.gameInfo.players.some(p => p.sid == this.st.user.sid))
 255 //    {
 256 //      this.game.players.forEach(p => {
 257 //        if (p.sid != this.st.user.sid)
 258 //          this.st.conn.send(JSON.stringify({code:"ping", oppid:p.sid}));
 259 //      });
 260 //    }
 261     },
 262     oppConnected: function(uid) {
 263       return this.opponents.some(o => o.id == uid && o.online);
 264     },
 265     processMove: function(move) {
 266       // TODO: process some opponent's move
 267     },
 268   },
 269 };
 270 </script>