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" :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 import { GameStorage } from "@/utils/storage";
  37
  38 export default {
  39   name: 'my-game',
  40   components: {
  41     BaseGame,
  42   },
  43   // gameRef: to find the game in (potentially remote) storage
  44   // mode: "live" or "corr" (correspondance game), or "analyze"
  45   data: function() {
  46     return {
  47       st: store.state,
  48       gameRef: {id: "", rid: ""}, //given in URL (rid = remote ID)
  49       game: null, //passed to BaseGame
  50       drawOfferSent: false, //did I just ask for draw? (TODO: draw variables?)
  51       people: [], //potential observers (TODO)
  52     };
  53   },
  54   computed: {
  55     analyze: function() {
  56       return this.mode == "analyze";
  57     },
  58   },
  59   watch: {
  60     '$route' (to, from) {
  61       this.gameRef.id = to.params["id"];
  62       this.gameRef.rid = to.query["rid"];
  63       this.loadGame();
  64     },
  65   },
  66   created: function() {
  67     if (!!this.$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     // Poll all players except me (if I'm playing) to know online status.
  74     // --> Send ping to server (answer pong if players[s] are connected)
  75     if (!!this.gameRef.id)
  76     {
  77       this.players.forEach(p => {
  78         if (p.sid != this.st.user.sid)
  79           this.st.conn.send(JSON.stringify({code:"ping", oppid:p.sid}));
  80       });
  81     }
  82     // TODO: how to know who is observing ? Send message to everyone with game ID ?
  83     // and then just listen to (dis)connect events
  84
  85     // TODO: also handle "draw accepted" (use opponents array?)
  86     // --> must give this info also when sending lastState...
  87     // and, if all players agree then OK draw (end game ...etc)
  88     const socketMessageListener = msg => {
  89       const data = JSON.parse(msg.data);
  90       let L = undefined;
  91       switch (data.code)
  92       {
  93         case "newmove":
  94           // TODO: observer on dark games must see all board ? Or alternate ? (seems better)
  95           // ...or just see nothing as on buho21
  96           this.$refs["baseGame"].play(
  97             data.move, this.vname!="Dark" ? "animate" : null);
  98           break;
  99         case "pong": //received if we sent a ping (game still alive on our side)
 100           if (this.gameRef.id != data.gameId)
 101             break; //games IDs don't match: the game is definitely over...
 102           this.oppConnected = true;
 103           // Send our "last state" informations to opponent(s)
 104           L = this.vr.moves.length;
 105           Object.keys(this.opponents).forEach(oid => {
 106             this.conn.send(JSON.stringify({
 107               code: "lastate",
 108               oppid: oid,
 109               gameId: this.gameRef.id,
 110               lastMove: (L>0?this.vr.moves[L-1]:undefined),
 111               movesCount: L,
 112             }));
 113           });
 114           break;
 115         // TODO: refactor this, because at 3 or 4 players we may have missed 2 or 3 moves
 116         case "lastate": //got opponent infos about last move
 117           L = this.vr.moves.length;
 118           if (this.gameRef.id != data.gameId)
 119             break; //games IDs don't match: nothing we can do...
 120           // OK, opponent still in game (which might be over)
 121           if (this.score != "*")
 122           {
 123             // We finished the game (any result possible)
 124             this.conn.send(JSON.stringify({
 125               code: "lastate",
 126               oppid: data.oppid,
 127               gameId: this.gameRef.id,
 128               score: this.score,
 129             }));
 130           }
 131           else if (!!data.score) //opponent finished the game
 132             this.endGame(data.score);
 133           else if (data.movesCount < L)
 134           {
 135             // We must tell last move to opponent
 136             this.conn.send(JSON.stringify({
 137               code: "lastate",
 138               oppid: this.opponent.id,
 139               gameId: this.gameRef.id,
 140               lastMove: this.vr.moves[L-1],
 141               movesCount: L,
 142             }));
 143           }
 144           else if (data.movesCount > L) //just got last move from him
 145             this.play(data.lastMove, "animate");
 146           break;
 147         case "resign": //..you won!
 148           this.endGame(this.mycolor=="w"?"1-0":"0-1");
 149           break;
 150         // TODO: also use (dis)connect info to count online players?
 151         case "gameconnect":
 152         case "gamedisconnect":
 153           if (this.mode=="human")
 154           {
 155             const online = (data.code == "connect");
 156             // If this is an opponent ?
 157             if (!!this.opponents[data.id])
 158               this.opponents[data.id].online = online;
 159             else
 160             {
 161               // Or an observer ?
 162               if (!online)
 163                 delete this.people[data.id];
 164               else
 165                 this.people[data.id] = data.name;
 166             }
 167           }
 168           break;
 169       }
 170     };
 171     const socketCloseListener = () => {
 172       this.conn.addEventListener('message', socketMessageListener);
 173       this.conn.addEventListener('close', socketCloseListener);
 174     };
 175     if (!!this.conn)
 176     {
 177       this.conn.onmessage = socketMessageListener;
 178       this.conn.onclose = socketCloseListener;
 179     }
 180   },
 181   // dans variant.js (plutôt room.js) conn gère aussi les challenges
 182   // et les chats dans chat.js. Puis en webRTC, repenser tout ça.
 183   methods: {
 184     offerDraw: function() {
 185       if (!confirm("Offer draw?"))
 186         return;
 187       // Stay in "draw offer sent" state until next move is played
 188       this.drawOfferSent = true;
 189       if (this.subMode == "corr")
 190       {
 191         // TODO: set drawOffer on in game (how ?)
 192       }
 193       else //live game
 194       {
 195         this.opponents.forEach(o => {
 196           if (!!o.online)
 197           {
 198             try {
 199               this.conn.send(JSON.stringify({code: "draw", oppid: o.id}));
 200             } catch (INVALID_STATE_ERR) {
 201               return;
 202             }
 203           }
 204         });
 205       }
 206     },
 207     // + conn handling: "draw" message ==> agree for draw (if we have "drawOffered" at true)
 208     receiveDrawOffer: function() {
 209       //if (...)
 210       // TODO: ignore if preventDrawOffer is set; otherwise show modal box with option "prevent future offers"
 211       // if accept: send message "draw"
 212     },
 213     abortGame: function() {
 214       if (!confirm("Abort the game?"))
 215         return;
 216       //+ bouton "abort" avec score == "?" + demander confirmation pour toutes ces actions,
 217       //send message: "gameOver" avec score "?"
 218     },
 219     resign: function(e) {
 220       if (!confirm("Resign the game?"))
 221         return;
 222       if (this.mode == "human" && this.oppConnected(this.oppid))
 223       {
 224         try {
 225           this.conn.send(JSON.stringify({code: "resign", oppid: this.oppid}));
 226         } catch (INVALID_STATE_ERR) {
 227           return;
 228         }
 229       }
 230       this.endGame(this.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: async function() {
 238       const game = GameStorage.get(this.gameRef);
 239       this.game = game;
 240       this.cursor = game.moves.length-1;
 241       // TODO: lastMove must be in BaseGame, not here
 242       this.lastMove = (game.moves.length > 0 ? game.moves[this.cursor] : null);
 243       const vModule = await import("@/variants/" + game.vname + ".js");
 244       window.V = vModule.VariantRules;
 245     },
 246     oppConnected: function(uid) {
 247       return this.opponents.some(o => o.id == uid && o.online);
 248     },
 249   },
 250 };
 251 </script>