chlss/dist/boardNotation.js

Open-Source Chess Engine in TypeScript.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.BoardNotation = void 0;
const coords_1 = require("./coords");
const BoardNotationChars = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'];
exports.BoardNotation = {
    toBoardNotation(squareIndex) {
        const x = coords_1.Coords.toX(squareIndex);
        const y = coords_1.Coords.toY(squareIndex);
        return `${BoardNotationChars[x]}${8 - y}`;
    },
    fromBoardNotation(boardNotation) {
        function error() {
            throw new Error("'fromBoardNotation' parsing error.");
        }
        const x = BoardNotationChars.indexOf(boardNotation[0]);
        if (x === -1)
            error();
        const y = parseInt(boardNotation[1]) - 1;
        if (y < 0 || y > 7)
            error();
        return coords_1.Coords.toSquareIndex(x, 7 - y);
    }
};