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="variant.name" :analyze="analyze"
  20       :vr="vr" :fen-start="fenStart" :players="players" :mycolor="mycolor"
  21       ref="basegame" @newmove="processMove")
  22     .button-group(v-if="mode!='analyze'")
  23       button(@click="offerDraw") Draw
  24       button(@click="abortGame") Abort
  25       button(@click="resign") Resign
  26     div(v-if="mode=='corr'")
  27       textarea(v-show="score=='*' && vr.turn==mycolor" v-model="corrMsg")
  28       div(v-show="cursor>=0") {{ moves[cursor].message }}
  29 </template>
  30
  31 <script>
  32 import BaseGame from "@/components/BaseGame.vue";
  33 //import Chat from "@/components/Chat.vue";
  34 //import MoveList from "@/components/MoveList.vue";
  35 import { store } from "@/store";
  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       // variables passed to BaseGame:
  48       fenStart: "",
  49       vr: null,
  50       players: ["Myself","Computer"], //always playing white for now
  51       mycolor: "w",
  52       ////////////
  53       gameRef: {id: "", rid: ""}, //given in URL (rid = remote ID, if applicable)
  54       mode: "live", //or "corr"
  55       vname: "", //filled when game is retrieved
  56       drawOfferSent: false, //did I just ask for draw?
  57       players: [], //filled later (2 to 4 players)
  58       people: [], //potential observers
  59     };
  60   },
  61   computed: {
  62     analyze: function() {
  63       return this.mode == "analyze";
  64     },
  65   },
  66   watch: {
  67     '$route' (to, from) {
  68       this.gameRef.id = to.params["id"];
  69       this.gameRef.rid = to.query["rid"];
  70       this.loadGame();
  71     },
  72   },
  73   created: function() {
  74     if (!!this.$route.params["id"])
  75     {
  76       this.gameRef.id = this.$route.params["id"];
  77       this.gameRef.rid = this.$route.query["rid"];
  78       this.loadGame();
  79     }
  80     // Poll all players except me (if I'm playing) to know online status.
  81     // --> Send ping to server (answer pong if players[s] are connected)
  82     if (!!this.gameRef.id)
  83     {
  84       this.players.forEach(p => {
  85         if (p.sid != this.st.user.sid)
  86           this.st.conn.send(JSON.stringify({code:"ping", oppid:p.sid}));
  87       });
  88     }
  89     // TODO: how to know who is observing ? Send message to everyone with game ID ?
  90     // and then just listen to (dis)connect events
  91
  92     // TODO: also handle "draw accepted" (use opponents array?)
  93     // --> must give this info also when sending lastState...
  94     // and, if all players agree then OK draw (end game ...etc)
  95     const socketMessageListener = msg => {
  96       const data = JSON.parse(msg.data);
  97       let L = undefined;
  98       switch (data.code)
  99       {
 100         case "newmove":
 101           // TODO: observer on dark games must see all board ? Or alternate ? (seems better)
 102           // ...or just see nothing as on buho21
 103           this.$refs["baseGame"].play(
 104             data.move, this.vname!="Dark" ? "animate" : null);
 105           break;
 106         case "pong": //received if we sent a ping (game still alive on our side)
 107           if (this.gameRef.id != data.gameId)
 108             break; //games IDs don't match: the game is definitely over...
 109           this.oppConnected = true;
 110           // Send our "last state" informations to opponent(s)
 111           L = this.vr.moves.length;
 112           Object.keys(this.opponents).forEach(oid => {
 113             this.conn.send(JSON.stringify({
 114               code: "lastate",
 115               oppid: oid,
 116               gameId: this.gameRef.id,
 117               lastMove: (L>0?this.vr.moves[L-1]:undefined),
 118               movesCount: L,
 119             }));
 120           });
 121           break;
 122         // TODO: refactor this, because at 3 or 4 players we may have missed 2 or 3 moves
 123         case "lastate": //got opponent infos about last move
 124           L = this.vr.moves.length;
 125           if (this.gameRef.id != data.gameId)
 126             break; //games IDs don't match: nothing we can do...
 127           // OK, opponent still in game (which might be over)
 128           if (this.score != "*")
 129           {
 130             // We finished the game (any result possible)
 131             this.conn.send(JSON.stringify({
 132               code: "lastate",
 133               oppid: data.oppid,
 134               gameId: this.gameRef.id,
 135               score: this.score,
 136             }));
 137           }
 138           else if (!!data.score) //opponent finished the game
 139             this.endGame(data.score);
 140           else if (data.movesCount < L)
 141           {
 142             // We must tell last move to opponent
 143             this.conn.send(JSON.stringify({
 144               code: "lastate",
 145               oppid: this.opponent.id,
 146               gameId: this.gameRef.id,
 147               lastMove: this.vr.moves[L-1],
 148               movesCount: L,
 149             }));
 150           }
 151           else if (data.movesCount > L) //just got last move from him
 152             this.play(data.lastMove, "animate");
 153           break;
 154         case "resign": //..you won!
 155           this.endGame(this.mycolor=="w"?"1-0":"0-1");
 156           break;
 157         // TODO: also use (dis)connect info to count online players?
 158         case "gameconnect":
 159         case "gamedisconnect":
 160           if (this.mode=="human")
 161           {
 162             const online = (data.code == "connect");
 163             // If this is an opponent ?
 164             if (!!this.opponents[data.id])
 165               this.opponents[data.id].online = online;
 166             else
 167             {
 168               // Or an observer ?
 169               if (!online)
 170                 delete this.people[data.id];
 171               else
 172                 this.people[data.id] = data.name;
 173             }
 174           }
 175           break;
 176       }
 177     };
 178     const socketCloseListener = () => {
 179       this.conn.addEventListener('message', socketMessageListener);
 180       this.conn.addEventListener('close', socketCloseListener);
 181     };
 182     if (!!this.conn)
 183     {
 184       this.conn.onmessage = socketMessageListener;
 185       this.conn.onclose = socketCloseListener;
 186     }
 187   },
 188   // dans variant.js (plutôt room.js) conn gère aussi les challenges
 189   // et les chats dans chat.js. Puis en webRTC, repenser tout ça.
 190   methods: {
 191     offerDraw: function() {
 192       if (!confirm("Offer draw?"))
 193         return;
 194       // Stay in "draw offer sent" state until next move is played
 195       this.drawOfferSent = true;
 196       if (this.subMode == "corr")
 197       {
 198         // TODO: set drawOffer on in game (how ?)
 199       }
 200       else //live game
 201       {
 202         this.opponents.forEach(o => {
 203           if (!!o.online)
 204           {
 205             try {
 206               this.conn.send(JSON.stringify({code: "draw", oppid: o.id}));
 207             } catch (INVALID_STATE_ERR) {
 208               return;
 209             }
 210           }
 211         });
 212       }
 213     },
 214     // + conn handling: "draw" message ==> agree for draw (if we have "drawOffered" at true)
 215     receiveDrawOffer: function() {
 216       //if (...)
 217       // TODO: ignore if preventDrawOffer is set; otherwise show modal box with option "prevent future offers"
 218       // if accept: send message "draw"
 219     },
 220     abortGame: function() {
 221       if (!confirm("Abort the game?"))
 222         return;
 223       //+ bouton "abort" avec score == "?" + demander confirmation pour toutes ces actions,
 224       //send message: "gameOver" avec score "?"
 225     },
 226     resign: function(e) {
 227       if (!confirm("Resign the game?"))
 228         return;
 229       if (this.mode == "human" && this.oppConnected(this.oppid))
 230       {
 231         try {
 232           this.conn.send(JSON.stringify({code: "resign", oppid: this.oppid}));
 233         } catch (INVALID_STATE_ERR) {
 234           return;
 235         }
 236       }
 237       this.endGame(this.mycolor=="w"?"0-1":"1-0");
 238     },
 239     // 4 cases for loading a game:
 240     //  - from localStorage (one running game I play)
 241     //  - from indexedDB (one completed live game)
 242     //  - from server (one correspondance game I play[ed] or not)
 243     //  - from remote peer (one live game I don't play, finished or not)
 244     loadGame: async function() {
 245       const game = getGameFromStorage(this.gameRef);
 246       this.players = game.players;
 247       this.score = game.score;
 248       this.mycolor = game.mycolor; //may be irrelevant (if I don't play it)
 249       this.fenStart = game.fenStart;
 250       this.moves = game.moves;
 251       this.cursor = game.moves.length-1;
 252       this.lastMove = (game.moves.length > 0 ? game.moves[this.cursor] : null);
 253       const vModule = await import("@/variants/" + game.vname + ".js");
 254       window.V = vModule.VariantRules;
 255     },
 256     oppConnected: function(uid) {
 257       return this.opponents.some(o => o.id == uid && o.online);
 258     },
 259   },
 260 };
 261 </script>