export declare class Vector {
    readonly x: number;
    readonly y: number;
    constructor(x: number, y: number);
    add(v: Vector): Vector;
    subtract(v: Vector): Vector;
    multiplyConst(v: number): Vector;
    divideConst(v: number): Vector;
    round(): Vector;
    distance(v: Vector): number;
    angleRad(v: Vector): number;
}