Add Diamond Chess
[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)
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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"],
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24 data: function() {
25 return {
26 st: store.state,
41cb9b94 27 game: {},
b7c32f1a 28 vr: null,
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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
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33 };
34 },
a6088c90 35 created: function() {
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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"
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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 46 self.$refs["basegame"].play(compMove, "received");
5b18515f 47 self.processMove(compMove);
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48 self.compThink = false;
49 if (self.game.score != "*")
50 // User action
51 self.$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]);
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58 if (!game) {
59 game = {
60 vname: this.gameInfo.vname,
f35b9960 61 fenStart: V.GenRandInitFen(this.st.settings.randomness),
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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");
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69 this.compWorker.postMessage(["init", game.fen]);
70 this.vr = new V(game.fen);
71 game.players = [{ name: "Myself" }, { name: "Computer" }];
6e47d367 72 if (game.mycolor == "b") game.players = game.players.reverse();
98b94cc3 73 game.score = "*"; //finished games are removed
07052665 74 game.mode = this.gameInfo.mode;
6cd07b4d 75 this.currentUrl = document.location.href; //to avoid playing outside page
98b94cc3 76 this.game = game;
b1e46b33 77 this.$refs["basegame"].re_setVariables(game);
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78 this.compWorker.postMessage(["init", game.fen]);
79 if (this.gameInfo.mode == "auto" || game.mycolor != this.vr.turn)
37cdcbf3 80 this.playComputerMove();
a6088c90 81 },
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82 // NOTE: a "goto" action could lead to an error when comp is thinking,
83 // but it's OK because from the user viewpoint the game just stops.
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84 playComputerMove: function() {
85 this.timeStart = Date.now();
41cb9b94 86 this.compThink = true;
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87 this.compWorker.postMessage(["askmove"]);
88 },
5aa14a21 89 processMove: function(move, scoreObj) {
e71161fb 90 playMove(move, this.vr);
5aa14a21 91 // This move could have ended the game:
5b18515f 92 if (!scoreObj) scoreObj = { score: this.vr.getCurrentScore() };
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93 if (scoreObj.score != "*") {
94 this.gameOver(scoreObj.score);
95 return;
96 }
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97 if (this.game.score != "*")
98 // The game already ended, probably because of a user action
99 return;
1acda11c 100 // Send the move to web worker (including his own moves)
6808d7a1 101 this.compWorker.postMessage(["newmove", move]);
e71161fb 102 if (this.gameInfo.mode == "auto" || this.vr.turn != this.game.mycolor)
1acda11c 103 this.playComputerMove();
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104 // Finally, update storage:
105 if (this.gameInfo.mode == "versus") {
98b94cc3 106 CompgameStorage.update(this.gameInfo.vname, {
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107 move: getFilteredMove(move),
108 fen: this.vr.getFen()
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109 });
110 }
1acda11c 111 },
5aa14a21 112 gameOver: function(score) {
41cb9b94 113 this.game.score = score;
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114 this.game.scoreMsg = getScoreMessage(score);
115 // If comp is thinking, let him finish:
116 if (!this.compThink) this.$emit("game-stopped");
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117 }
118 }
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119};
120</script>