client/src/components/ComputerGame.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(:vname="vname" :analyze="analyze"
   5       :vr="vr" :fen-start="fenStart" :players="players" :mycolor="mycolor"
   6       ref="basegame" @newmove="processMove")
   7 </template>
   8
   9 <script>
  10 import BaseGame from "@/components/BaseGame.vue";
  11 import { store } from "@/store";
  12 import Worker from 'worker-loader!@/playCompMove';
  13
  14 export default {
  15   name: 'my-computer-game',
  16   components: {
  17     BaseGame,
  18   },
  19   // mode: "auto" (game comp vs comp), "versus" (normal) or "analyze"
  20   props: ["fen","mode","vname"],
  21   data: function() {
  22     return {
  23       st: store.state,
  24       // variables passed to BaseGame:
  25       fenStart: "",
  26       vr: null,
  27       players: ["Myself","Computer"], //always playing white for now
  28       mycolor: "w",
  29       // Web worker to play computer moves without freezing interface:
  30       timeStart: undefined, //time when computer starts thinking
  31       lockCompThink: false, //to avoid some ghost moves
  32       compWorker: null,
  33     };
  34   },
  35   computed: {
  36     analyze: function() {
  37       return this.mode == "analyze";
  38     },
  39   },
  40   watch: {
  41     fen: function() {
  42       // (Security) No effect if a computer move is in progress:
  43       if (this.lockCompThink)
  44         return this.$emit("computer-think");
  45       this.launchGame();
  46     },
  47   },
  48   // Modal end of game, and then sub-components
  49   created: function() {
  50     // Computer moves web worker logic: (TODO: also for observers in HH games ?)
  51     this.compWorker = new Worker(); //'/javascripts/playCompMove.js'),
  52     this.compWorker.onmessage = e => {
  53       this.lockCompThink = true; //to avoid some ghost moves
  54       let compMove = e.data;
  55       if (!Array.isArray(compMove))
  56         compMove = [compMove]; //to deal with MarseilleRules
  57       // Small delay for the bot to appear "more human"
  58       const delay = Math.max(500-(Date.now()-this.timeStart), 0);
  59       setTimeout(() => {
  60         const animate = (this.vname != "Dark");
  61         this.$refs.basegame.play(compMove[0], animate);
  62         if (compMove.length == 2)
  63           setTimeout( () => { this.$refs.basegame.play(compMove[1], animate); }, 750);
  64         else //250 == length of animation (TODO: should be a constant somewhere)
  65           setTimeout( () => this.lockCompThink = false, 250);
  66       }, delay);
  67     }
  68     if (!!this.fen)
  69       this.launchGame();
  70   },
  71   // dans variant.js (plutôt room.js) conn gère aussi les challenges
  72   // et les chats dans chat.js. Puis en webRTC, repenser tout ça.
  73   methods: {
  74     launchGame: async function() {
  75       const vModule = await import("@/variants/" + this.vname + ".js");
  76       window.V = vModule.VariantRules;
  77       this.compWorker.postMessage(["scripts",this.vname]);
  78       this.compWorker.postMessage(["init",this.fen]);
  79       this.newGameFromFen(this.fen);
  80     },
  81     newGameFromFen: function(fen) {
  82       this.vr = new V(fen);
  83       this.moves = [];
  84       this.cursor = -1;
  85       this.fenStart = fen;
  86       this.score = "*";
  87       if (this.mode == "analyze")
  88       {
  89         this.mycolor = V.ParseFen(fen).turn;
  90         this.orientation = this.mycolor;
  91       }
  92       else if (this.mode == "computer") //only other alternative (HH with gameId)
  93       {
  94         this.mycolor = (Math.random() < 0.5 ? "w" : "b");
  95         this.orientation = this.mycolor;
  96         this.compWorker.postMessage(["init",fen]);
  97         if (this.mycolor != "w" || this.mode == "auto")
  98           this.playComputerMove();
  99       }
 100     },
 101     playComputerMove: function() {
 102       this.timeStart = Date.now();
 103       this.compWorker.postMessage(["askmove"]);
 104     },
 105     // TODO: do not process if game is over (check score ?)
 106     processMove: function(move) {
 107       // Send the move to web worker (including his own moves)
 108       this.compWorker.postMessage(["newmove",move]);
 109       // subTurn condition for Marseille (and Avalanche) rules
 110       if ((!this.vr.subTurn || this.vr.subTurn <= 1)
 111         && (this.mode == "auto" || this.vr.turn != this.mycolor))
 112       {
 113         this.playComputerMove();
 114       }
 115     },
 116   },
 117 };
 118 </script>