77 lines
2.1 KiB
JavaScript
77 lines
2.1 KiB
JavaScript
import { Chessground } from 'chessground';
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import { Chess } from 'chess.js';
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export const ChessBoard = {
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mounted() {
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this.chess = new Chess();
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this.ground = Chessground(this.el, {
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fen: this.chess.fen(),
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movable: {
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color: 'white',
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free: false,
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dests: this.getValidDests()
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},
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events: {
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move: (orig, dest, _metadata) => {
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this.handleMove(orig, dest);
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}
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}
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});
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this.handleEvent("set_fen", ({ fen }) => {
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try {
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this.chess.load(fen);
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const currentTurnColor = this.chess.turn() === 'w' ? 'white' : 'black';
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this.ground.set({
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fen: fen,
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turnColor: currentTurnColor,
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movable: {
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color: currentTurnColor,
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dests: this.getValidDests()
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}
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});
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} catch (error) {
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console.error("Invalid FEN string submitted:", error);
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alert("Invalid FEN configuration!");
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}
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});
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},
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getValidDests() {
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// Convert chess.js moves into the Map format Chessground expects
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const dests = new Map();
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this.chess.moves({ verbose: true }).forEach(m => {
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if (!dests.has(m.from)) dests.set(m.from, []);
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dests.get(m.from).push(m.to);
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});
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return dests;
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},
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handleMove(orig, dest) {
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const move = this.chess.move({ from: orig, to: dest, promotion: 'q' });
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if (move) {
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this.pushEvent("move_played", {
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from: orig,
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to: dest,
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fen: this.chess.fen(),
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san: move.san,
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});
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const nextTurnColor = this.chess.turn() === 'w' ? 'white' : 'black';
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this.ground.set({
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turnColor: nextTurnColor,
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movable: {
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color: nextTurnColor,
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dests: this.getValidDests()
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}
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});
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} else {
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this.ground.set({ fen: this.chess.fen() });
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}
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}
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} |