Barelydead / oop-chess

 * Queen module

 * @module

 */

/**

 * Class with Queen logic

 */

class Queen {

    /**

     * init

     */

    legalMove(x, y, nx, ny) {

        // row

        if (x == nx && y !== ny || x !== nx && y == ny) {

            return true

        }

        let xNum = this.rows.indexOf(x);

        let nxNum = this.rows.indexOf(nx);

        let xStep = Math.abs(xNum - nxNum);

        let yStep = Math.abs(y - ny)

        if (xStep === yStep) {

            return true

        }

        return false;

    }

}

module.exports = Queen;