Barelydead / oop-chess

/**

 * Class with Queen logic

 */

class Queen {

    /**

     * init

     */

    constructor(color) {

        this.symbol = "Q";

        this.moved = 0;

        this.active = true;

        this.color = color;

        this.rows = [null, "A", "B", "C", "D", "E", "F", "G", "H"];

        this.img = this.color === "white" ? "w-queen" : "b-queen";

    }

    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;