import type { XMLNode } from 'xmlbuilder';
export declare class Vector2 {
    x: number;
    y: number;
    constructor(buf?: Buffer | number[] | Vector2 | number, pos?: number, double?: boolean | number);
    static getXML(doc: XMLNode, v?: Vector2): void;
    static getZero(): Vector2;
    writeToBuffer(buf: Buffer, pos: number, double?: boolean): void;
    toString(): string;
    getBuffer(double?: boolean): Buffer;
    compareApprox(vec: Vector2): boolean;
    toArray(): number[];
    equals(vec: Vector2, epsilon?: number): boolean;
    dot(vec: Vector2): number;
    cross(vec: Vector2): number;
    distance(vec: Vector2): number;
    squaredDistance(vec: Vector2): number;
    direction(vec: Vector2): Vector2;
    mix(vec: Vector2, t: number): Vector2;
    sum(vec: Vector2): Vector2;
    difference(vec: Vector2): Vector2;
    product(vec: Vector2): Vector2;
    quotient(vec: Vector2): Vector2;
    reset(): void;
    copy(): Vector2;
    negate(): Vector2;
    length(): number;
    squaredLength(): number;
    add(vec: Vector2): Vector2;
    subtract(vec: Vector2): Vector2;
    multiply(value: number | Vector2): Vector2;
    divide(value: number | Vector2): Vector2;
    scale(scalar: number): Vector2;
    normalize(): Vector2;
    angle(): number;
    rotate(angle: number): Vector2;
    perpendicular(): Vector2;
    projectOnto(vec: Vector2): Vector2;
}