Fix typos
[vchess.git] / client / src / components / ComputerGame.vue
CommitLineData
a6088c90 1<template lang="pug">
910d631b 2BaseGame(
8477e53d 3 ref="basegame"
910d631b 4 :game="game"
910d631b 5 @newmove="processMove"
910d631b 6)
a6088c90
BA
7</template>
8
9<script>
10import BaseGame from "@/components/BaseGame.vue";
11import { store } from "@/store";
98b94cc3 12import { CompgameStorage } from "@/utils/compgameStorage";
5aa14a21 13import { getScoreMessage } from "@/utils/scoring";
e71161fb 14import { playMove, getFilteredMove } from "@/utils/playUndo";
41cb9b94 15import Worker from "worker-loader!@/playCompMove";
a6088c90 16export default {
41cb9b94 17 name: "my-computer-game",
a6088c90 18 components: {
6808d7a1 19 BaseGame
a6088c90 20 },
6dd02928 21 // gameInfo: fen + mode + vname
63ca2b89 22 // mode: "auto" (game comp vs comp) or "versus" (normal)
6dd02928 23 props: ["gameInfo"],
a6088c90
BA
24 data: function() {
25 return {
26 st: store.state,
41cb9b94 27 game: {},
b7c32f1a 28 vr: null,
a6088c90
BA
29 // Web worker to play computer moves without freezing interface:
30 timeStart: undefined, //time when computer starts thinking
41cb9b94 31 compThink: false, //avoid asking a new move while one is being searched
6808d7a1 32 compWorker: null
a6088c90
BA
33 };
34 },
a6088c90 35 created: function() {
41cb9b94
BA
36 // Computer moves web worker logic:
37 this.compWorker = new Worker();
a6088c90 38 this.compWorker.onmessage = e => {
a6088c90 39 let compMove = e.data;
a6088c90 40 // Small delay for the bot to appear "more human"
4404e58c
BA
41 const minDelay = this.gameInfo.mode == "versus" ? 500 : 1000;
42 const delay = Math.max(minDelay - (Date.now() - this.timeStart), 0);
e71161fb 43 let self = this;
a6088c90 44 setTimeout(() => {
6808d7a1 45 if (this.currentUrl != document.location.href) return; //page change
e71161fb
BA
46 // NOTE: BaseGame::play() will trigger processMove() here
47 self.$refs["basegame"].play(compMove, "received");
48 self.compThink = false;
49 if (self.game.score != "*")
50 // User action
51 self.$emit("game-stopped");
a6088c90 52 }, delay);
6808d7a1 53 };
a6088c90 54 },
a6088c90 55 methods: {
98b94cc3 56 launchGame: function(game) {
6808d7a1 57 this.compWorker.postMessage(["scripts", this.gameInfo.vname]);
98b94cc3
BA
58 if (!game) {
59 game = {
60 vname: this.gameInfo.vname,
f35b9960 61 fenStart: V.GenRandInitFen(this.st.settings.randomness),
98b94cc3
BA
62 moves: []
63 };
64 game.fen = game.fenStart;
65 if (this.gameInfo.mode == "versus")
66 CompgameStorage.add(game);
67 }
57d9b2c4 68 if (!game.mycolor) game.mycolor = (Math.random() < 0.5 ? "w" : "b");
98b94cc3
BA
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
6cd07b4d 74 this.currentUrl = document.location.href; //to avoid playing outside page
98b94cc3 75 this.game = game;
b1e46b33 76 this.$refs["basegame"].re_setVariables(game);
98b94cc3
BA
77 this.compWorker.postMessage(["init", game.fen]);
78 if (this.gameInfo.mode == "auto" || game.mycolor != this.vr.turn)
37cdcbf3 79 this.playComputerMove();
a6088c90 80 },
8477e53d
BA
81 // NOTE: a "goto" action could lead to an error when comp is thinking,
82 // but it's OK because from the user viewpoint the game just stops.
a6088c90
BA
83 playComputerMove: function() {
84 this.timeStart = Date.now();
41cb9b94 85 this.compThink = true;
a6088c90
BA
86 this.compWorker.postMessage(["askmove"]);
87 },
5aa14a21 88 processMove: function(move, scoreObj) {
e71161fb 89 playMove(move, this.vr);
5aa14a21
BA
90 // This move could have ended the game:
91 if (scoreObj.score != "*") {
92 this.gameOver(scoreObj.score);
93 return;
94 }
9d4a0218
BA
95 if (this.game.score != "*")
96 // The game already ended, probably because of a user action
97 return;
1acda11c 98 // Send the move to web worker (including his own moves)
6808d7a1 99 this.compWorker.postMessage(["newmove", move]);
e71161fb 100 if (this.gameInfo.mode == "auto" || this.vr.turn != this.game.mycolor)
1acda11c 101 this.playComputerMove();
98b94cc3
BA
102 // Finally, update storage:
103 if (this.gameInfo.mode == "versus") {
98b94cc3 104 CompgameStorage.update(this.gameInfo.vname, {
e71161fb
BA
105 move: getFilteredMove(move),
106 fen: this.vr.getFen()
98b94cc3
BA
107 });
108 }
1acda11c 109 },
5aa14a21 110 gameOver: function(score) {
41cb9b94 111 this.game.score = score;
5aa14a21
BA
112 this.game.scoreMsg = getScoreMessage(score);
113 // If comp is thinking, let him finish:
114 if (!this.compThink) this.$emit("game-stopped");
6808d7a1
BA
115 }
116 }
a6088c90
BA
117};
118</script>