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" @newmove="processMove")
  20     .button-group(v-if="game.mode!='analyze'")
  21       button(@click="offerDraw") Draw
  22       button(@click="abortGame") Abort
  23       button(@click="resign") Resign
  24     div(v-if="game.mode=='corr'")
  25       textarea(v-show="score=='*' && vr.turn==game.mycolor" v-model="corrMsg")
  26       div(v-show="cursor>=0") {{ moves[cursor].message }}
  27 </template>
  28
  29 <script>
  30 import BaseGame from "@/components/BaseGame.vue";
  31 //import Chat from "@/components/Chat.vue";
  32 //import MoveList from "@/components/MoveList.vue";
  33 import { store } from "@/store";
  34 import { GameStorage } from "@/utils/storage";
  35
  36 export default {
  37   name: 'my-game',
  38   components: {
  39     BaseGame,
  40   },
  41   // gameRef: to find the game in (potentially remote) storage
  42   data: function() {
  43     return {
  44       st: store.state,
  45       gameRef: { //given in URL (rid = remote ID)
  46         id: "",
  47         rid: ""
  48       },
  49       game: { }, //passed to BaseGame
  50       vr: null, //"variant rules" object initialized from FEN
  51       drawOfferSent: false, //did I just ask for draw? (TODO: draw variables?)
  52       people: [ ], //potential observers (TODO)
  53     };
  54   },
  55   watch: {
  56     '$route' (to, from) {
  57       if (!!to.params["id"])
  58       {
  59         this.gameRef.id = to.params["id"];
  60         this.gameRef.rid = to.query["rid"];
  61         this.loadGame();
  62       }
  63     },
  64   },
  65   created: function() {
  66     if (!!this.$route.params["id"])
  67     {
  68       this.gameRef.id = this.$route.params["id"];
  69       this.gameRef.rid = this.$route.query["rid"];
  70       this.loadGame();
  71     }
  72     // TODO: how to know who is observing ? Send message to everyone with game ID ?
  73     // and then just listen to (dis)connect events
  74
  75
  76     // server always send "connect on " + URL ; then add to observers if game...
  77     // detect multiple tabs connected (when connect ask server if my SID is already in use)
  78 // router when access a game page tell to server I joined + game ID (no need rid)
  79 // and ask server for current joined (= observers)
  80 // when send to chat (or a move), reach only this group (send gid along)
  81
  82     // --> doivent être enregistrés comme observers au niveau du serveur...
  83     // non: poll users + events startObserving / stopObserving
  84
  85
  86     // TODO: also handle "draw accepted" (use opponents array?)
  87     // --> must give this info also when sending lastState...
  88     // and, if all players agree then OK draw (end game ...etc)
  89     const socketMessageListener = msg => {
  90       const data = JSON.parse(msg.data);
  91       let L = undefined;
  92       switch (data.code)
  93       {
  94         case "newmove":
  95           // TODO: observer on dark games must see all board ? Or alternate ? (seems better)
  96           // ...or just see nothing as on buho21
  97           this.$refs["basegame"].play(
  98             data.move, this.game.vname!="Dark" ? "animate" : null);
  99           break;
 100         case "pong": //received if we sent a ping (game still alive on our side)
 101           if (this.gameRef.id != data.gameId)
 102             break; //games IDs don't match: the game is definitely over...
 103           this.oppConnected = true;
 104           // Send our "last state" informations to opponent(s)
 105           L = this.vr.moves.length;
 106           Object.keys(this.opponents).forEach(oid => {
 107             this.st.conn.send(JSON.stringify({
 108               code: "lastate",
 109               oppid: oid,
 110               gameId: this.gameRef.id,
 111               lastMove: (L>0?this.vr.moves[L-1]:undefined),
 112               movesCount: L,
 113             }));
 114           });
 115           break;
 116         // TODO: refactor this, because at 3 or 4 players we may have missed 2 or 3 moves
 117         case "lastate": //got opponent infos about last move
 118           L = this.vr.moves.length;
 119           if (this.gameRef.id != data.gameId)
 120             break; //games IDs don't match: nothing we can do...
 121           // OK, opponent still in game (which might be over)
 122           if (this.score != "*")
 123           {
 124             // We finished the game (any result possible)
 125             this.st.conn.send(JSON.stringify({
 126               code: "lastate",
 127               oppid: data.oppid,
 128               gameId: this.gameRef.id,
 129               score: this.score,
 130             }));
 131           }
 132           else if (!!data.score) //opponent finished the game
 133             this.endGame(data.score);
 134           else if (data.movesCount < L)
 135           {
 136             // We must tell last move to opponent
 137             this.st.conn.send(JSON.stringify({
 138               code: "lastate",
 139               oppid: this.opponent.id,
 140               gameId: this.gameRef.id,
 141               lastMove: this.vr.moves[L-1],
 142               movesCount: L,
 143             }));
 144           }
 145           else if (data.movesCount > L) //just got last move from him
 146             this.play(data.lastMove, "animate");
 147           break;
 148         case "resign": //..you won!
 149           this.endGame(this.game.mycolor=="w"?"1-0":"0-1");
 150           break;
 151         // TODO: also use (dis)connect info to count online players?
 152         case "gameconnect":
 153         case "gamedisconnect":
 154           if (this.mode=="human")
 155           {
 156             const online = (data.code == "connect");
 157             // If this is an opponent ?
 158             if (!!this.opponents[data.id])
 159               this.opponents[data.id].online = online;
 160             else
 161             {
 162               // Or an observer ?
 163               if (!online)
 164                 delete this.people[data.id];
 165               else
 166                 this.people[data.id] = data.name;
 167             }
 168           }
 169           break;
 170       }
 171     };
 172     const socketCloseListener = () => {
 173       this.st.conn.addEventListener('message', socketMessageListener);
 174       this.st.conn.addEventListener('close', socketCloseListener);
 175     };
 176     this.st.conn.onmessage = socketMessageListener;
 177     this.st.conn.onclose = socketCloseListener;
 178   },
 179   // dans variant.js (plutôt room.js) conn gère aussi les challenges
 180   // et les chats dans chat.js. Puis en webRTC, repenser tout ça.
 181   methods: {
 182     offerDraw: function() {
 183       if (!confirm("Offer draw?"))
 184         return;
 185       // Stay in "draw offer sent" state until next move is played
 186       this.drawOfferSent = true;
 187       if (this.subMode == "corr")
 188       {
 189         // TODO: set drawOffer on in game (how ?)
 190       }
 191       else //live game
 192       {
 193         this.opponents.forEach(o => {
 194           if (!!o.online)
 195           {
 196             try {
 197               this.st.conn.send(JSON.stringify({code: "draw", oppid: o.id}));
 198             } catch (INVALID_STATE_ERR) {
 199               return;
 200             }
 201           }
 202         });
 203       }
 204     },
 205     // + conn handling: "draw" message ==> agree for draw (if we have "drawOffered" at true)
 206     receiveDrawOffer: function() {
 207       //if (...)
 208       // TODO: ignore if preventDrawOffer is set; otherwise show modal box with option "prevent future offers"
 209       // if accept: send message "draw"
 210     },
 211     abortGame: function() {
 212       if (!confirm("Abort the game?"))
 213         return;
 214       //+ bouton "abort" avec score == "?" + demander confirmation pour toutes ces actions,
 215       //send message: "gameOver" avec score "?"
 216       // ==> BaseGame must listen to game.score change, and call "endgame(score)" in this case
 217     },
 218     resign: function(e) {
 219       if (!confirm("Resign the game?"))
 220         return;
 221       if (this.mode == "human" && this.oppConnected(this.oppid))
 222       {
 223         try {
 224           this.st.conn.send(JSON.stringify({code: "resign", oppid: this.oppid}));
 225         } catch (INVALID_STATE_ERR) {
 226           return;
 227         }
 228       }
 229       this.endGame(this.mycolor=="w"?"0-1":"1-0");
 230     },
 231     // 4 cases for loading a game:
 232     //  - from localStorage (one running game I play)
 233     //  - from indexedDB (one completed live game)
 234     //  - from server (one correspondance game I play[ed] or not)
 235     //  - from remote peer (one live game I don't play, finished or not)
 236     loadGame: function() {
 237       GameStorage.get(this.gameRef, async (game) => {
 238         this.game = Object.assign({},
 239           game,
 240           // NOTE: assign mycolor here, since BaseGame could also bs VS computer
 241           {mycolor: ["w","b"][game.players.findIndex(p => p.sid == this.st.user.sid)]},
 242         );
 243         const vModule = await import("@/variants/" + game.vname + ".js");
 244         window.V = vModule.VariantRules;
 245         this.vr = new V(game.fen);
 246       });
 247 //    // Poll all players except me (if I'm playing) to know online status.
 248 //    // --> Send ping to server (answer pong if players[s] are connected)
 249 //    if (this.gameInfo.players.some(p => p.sid == this.st.user.sid))
 250 //    {
 251 //      this.game.players.forEach(p => {
 252 //        if (p.sid != this.st.user.sid)
 253 //          this.st.conn.send(JSON.stringify({code:"ping", oppid:p.sid}));
 254 //      });
 255 //    }
 256     },
 257     oppConnected: function(uid) {
 258       return this.opponents.some(o => o.id == uid && o.online);
 259     },
 260     processMove: function(move) {
 261       // TODO: process some opponent's move
 262     },
 263   },
 264 };
 265 </script>