chess-legal-moves/dist/createNewGameScan/Board/Board.js

Analyses a given chess game position in Fen notation to return legal moves and provides the next game position after a given move

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var BitBoard_1 = require("../BitBoard/BitBoard");
var Board = /** @class */ (function () {
    function Board(boardString) {
        this.whites = new BitBoard_1.default();
        this.blacks = new BitBoard_1.default();
        this.pawns = new BitBoard_1.default();
        this.rooks = new BitBoard_1.default();
        this.knights = new BitBoard_1.default();
        this.bishops = new BitBoard_1.default();
        this.kings = new BitBoard_1.default();
        this.queens = new BitBoard_1.default();
        this.feedBoard(boardString);
    }
    Board.prototype.feedBoard = function (boardString) {
        var _this = this;
        this.boardString = boardString;
        var rows = boardString.split('/');
        var pos = 0;
        for (var i = rows.length - 1; i >= 0; i--) {
            rows[i].split('').forEach(function (char) {
                if (/[0-9]/.test(char)) {
                    pos += parseInt(char);
                }
                else if (char === '.') {
                    pos = pos + 1;
                }
                else {
                    _this[letterToType(char)].setBit(pos);
                    _this[letterToColor(char)].setBit(pos);
                    pos = pos + 1;
                }
            });
        }
    };
    Object.defineProperty(Board.prototype, "allPieces", {
        get: function () {
            return this.whites.or(this.blacks);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "empty", {
        get: function () {
            return this.allPieces.not();
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "whitePawns", {
        // WHITE PIECES
        get: function () {
            return this.whites.and(this.pawns);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "whiteRooks", {
        get: function () {
            return this.whites.and(this.rooks);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "whiteKnights", {
        get: function () {
            return this.whites.and(this.knights);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "whiteBishops", {
        get: function () {
            return this.whites.and(this.bishops);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "whiteQueens", {
        get: function () {
            return this.whites.and(this.queens);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "whiteKing", {
        get: function () {
            return this.whites.and(this.kings);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "quietDestinations", {
        get: function () {
            return this.whites.not().and(this.blacks.not());
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "blackPawns", {
        // BLACK PIECES
        get: function () {
            return this.blacks.and(this.pawns);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "blackRooks", {
        get: function () {
            return this.blacks.and(this.rooks);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "blackKnights", {
        get: function () {
            return this.blacks.and(this.knights);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "blackBishops", {
        get: function () {
            return this.blacks.and(this.bishops);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "blackQueens", {
        get: function () {
            return this.blacks.and(this.queens);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Board.prototype, "blackKing", {
        get: function () {
            return this.blacks.and(this.kings);
        },
        enumerable: false,
        configurable: true
    });
    return Board;
}());
exports.default = Board;
function letterToColor(letter) {
    return letter.toUpperCase() === letter ? 'whites' : 'blacks';
}
function letterToType(letter) {
    var types = {
        p: 'pawns',
        r: 'rooks',
        n: 'knights',
        b: 'bishops',
        k: 'kings',
        q: 'queens',
        P: 'pawns',
        R: 'rooks',
        N: 'knights',
        B: 'bishops',
        K: 'kings',
        Q: 'queens',
    };
    return types[letter];
}