10 import BaseGame from "@/components/BaseGame.vue";
11 import { store } from "@/store";
12 import { CompgameStorage } from "@/utils/compgameStorage";
13 import { getScoreMessage } from "@/utils/scoring";
14 import { playMove, getFilteredMove } from "@/utils/playUndo";
15 import Worker from "worker-loader!@/playCompMove";
17 name: "my-computer-game",
21 // gameInfo: fen + mode + vname
22 // mode: "auto" (game comp vs comp) or "versus" (normal)
29 // Web worker to play computer moves without freezing interface:
30 timeStart: undefined, //time when computer starts thinking
31 compThink: false, //avoid asking a new move while one is being searched
36 // Computer moves web worker logic:
37 this.compWorker = new Worker();
38 this.compWorker.onmessage = e => {
39 let compMove = e.data;
40 // Small delay for the bot to appear "more human"
41 const minDelay = this.gameInfo.mode == "versus" ? 500 : 1000;
42 const delay = Math.max(minDelay - (Date.now() - this.timeStart), 0);
45 if (this.currentUrl != document.location.href) return; //page change
46 // NOTE: BaseGame::play() will trigger processMove() here
47 self.$refs["basegame"].play(compMove, "received");
48 self.compThink = false;
49 if (self.game.score != "*")
51 self.$emit("game-stopped");
56 launchGame: function(game) {
57 this.compWorker.postMessage(["scripts", this.gameInfo.vname]);
60 vname: this.gameInfo.vname,
61 fenStart: V.GenRandInitFen(this.st.settings.randomness),
64 game.fen = game.fenStart;
65 if (this.gameInfo.mode == "versus")
66 CompgameStorage.add(game);
68 if (!game.mycolor) game.mycolor = (Math.random() < 0.5 ? "w" : "b");
69 this.compWorker.postMessage(["init", game.fen]);
70 this.vr = new V(game.fen);
71 game.players = [{ name: "Myself" }, { name: "Computer" }];
72 if (game.myColor == "b") game.players = game.players.reverse();
73 game.score = "*"; //finished games are removed
74 this.currentUrl = document.location.href; //to avoid playing outside page
76 this.$refs["basegame"].re_setVariables(game);
77 this.compWorker.postMessage(["init", game.fen]);
78 if (this.gameInfo.mode == "auto" || game.mycolor != this.vr.turn)
79 this.playComputerMove();
81 // NOTE: a "goto" action could lead to an error when comp is thinking,
82 // but it's OK because from the user viewpoint the game just stops.
83 playComputerMove: function() {
84 this.timeStart = Date.now();
85 this.compThink = true;
86 this.compWorker.postMessage(["askmove"]);
88 processMove: function(move, scoreObj) {
89 playMove(move, this.vr);
90 // This move could have ended the game:
91 if (scoreObj.score != "*") {
92 this.gameOver(scoreObj.score);
95 if (this.game.score != "*")
96 // The game already ended, probably because of a user action
98 // Send the move to web worker (including his own moves)
99 this.compWorker.postMessage(["newmove", move]);
100 if (this.gameInfo.mode == "auto" || this.vr.turn != this.game.mycolor)
101 this.playComputerMove();
102 // Finally, update storage:
103 if (this.gameInfo.mode == "versus") {
104 CompgameStorage.update(this.gameInfo.vname, {
105 move: getFilteredMove(move),
106 fen: this.vr.getFen()
110 gameOver: function(score) {
111 this.game.score = score;
112 this.game.scoreMsg = getScoreMessage(score);
113 // If comp is thinking, let him finish:
114 if (!this.compThink) this.$emit("game-stopped");