chess-legal-moves/dist/createNewGameScan/moves/moveHelpers.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 });
exports.removeLowestBit = exports.removeHighestBit = exports.slideDown = exports.slideUp = void 0;
function slideUp(attacks) {
    attacks = attacks.shiftLeft(8);
    return attacks;
}
exports.slideUp = slideUp;
function slideDown(attacks) {
    attacks = attacks.shiftRight(8);
    return attacks;
}
exports.slideDown = slideDown;
function removeHighestBit(attacks) {
    attacks = attacks.clearBit(attacks.bitScanReverse());
    return attacks;
}
exports.removeHighestBit = removeHighestBit;
function removeLowestBit(attacks) {
    attacks = attacks.clearBit(attacks.bitScanForward());
    return attacks;
}
exports.removeLowestBit = removeLowestBit;