Add Shogun 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.$refs["basegame"].play(compMove, "received");
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47 const animationLength =
48 // 250 = length of animation, 500 = delay between sub-moves
49 // TODO: a callback would be cleaner.
50 250 + (Array.isArray(compMove) ? (compMove.length - 1) * 750 : 0);
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51 setTimeout(
52 () => {
53 self.compThink = false;
54 self.processMove(compMove);
55 },
56 animationLength
57 );
a6088c90 58 }, delay);
6808d7a1 59 };
a6088c90 60 },
a6088c90 61 methods: {
98b94cc3 62 launchGame: function(game) {
6808d7a1 63 this.compWorker.postMessage(["scripts", this.gameInfo.vname]);
996bdaa4 64 if (!game) {
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65 game = {
66 vname: this.gameInfo.vname,
f35b9960 67 fenStart: V.GenRandInitFen(this.st.settings.randomness),
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68 moves: []
69 };
70 game.fen = game.fenStart;
d2edca6d 71 if (this.gameInfo.mode == "versus") CompgameStorage.add(game);
98b94cc3 72 }
57d9b2c4 73 if (!game.mycolor) game.mycolor = (Math.random() < 0.5 ? "w" : "b");
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74 this.compWorker.postMessage(["init", game.fen]);
75 this.vr = new V(game.fen);
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76 game.players = [{ name: "Computer" }, { name: "Computer" }];
77 if (this.gameInfo.mode == "versus")
78 game.players[game.mycolor == 'w' ? 0 : 1] = { name: "Myself" };
98b94cc3 79 game.score = "*"; //finished games are removed
07052665 80 game.mode = this.gameInfo.mode;
6cd07b4d 81 this.currentUrl = document.location.href; //to avoid playing outside page
98b94cc3 82 this.game = game;
b1e46b33 83 this.$refs["basegame"].re_setVariables(game);
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84 this.compWorker.postMessage(["init", game.fen]);
85 if (this.gameInfo.mode == "auto" || game.mycolor != this.vr.turn)
37cdcbf3 86 this.playComputerMove();
a6088c90 87 },
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88 // NOTE: a "goto" action could lead to an error when comp is thinking,
89 // but it's OK because from the user viewpoint the game just stops.
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90 playComputerMove: function() {
91 this.timeStart = Date.now();
41cb9b94 92 this.compThink = true;
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93 this.compWorker.postMessage(["askmove"]);
94 },
5aa14a21 95 processMove: function(move, scoreObj) {
e71161fb 96 playMove(move, this.vr);
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97 // Maybe the user stopped the game:
98 if (this.game.score != "*") {
99 this.$emit("game-stopped");
100 return;
101 }
102 // This move could have ended the game
5b18515f 103 if (!scoreObj) scoreObj = { score: this.vr.getCurrentScore() };
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104 if (scoreObj.score != "*") {
105 this.gameOver(scoreObj.score);
106 return;
107 }
1acda11c 108 // Send the move to web worker (including his own moves)
6808d7a1 109 this.compWorker.postMessage(["newmove", move]);
e71161fb 110 if (this.gameInfo.mode == "auto" || this.vr.turn != this.game.mycolor)
1acda11c 111 this.playComputerMove();
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112 // Finally, update storage:
113 if (this.gameInfo.mode == "versus") {
98b94cc3 114 CompgameStorage.update(this.gameInfo.vname, {
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115 move: getFilteredMove(move),
116 fen: this.vr.getFen()
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117 });
118 }
1acda11c 119 },
5aa14a21 120 gameOver: function(score) {
41cb9b94 121 this.game.score = score;
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122 this.game.scoreMsg = getScoreMessage(score);
123 // If comp is thinking, let him finish:
124 if (!this.compThink) this.$emit("game-stopped");
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125 }
126 }
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127};
128</script>