import { vec2 as Vec2 } from 'gl-matrix';
import Vector from './Vector';
/**
 * Encapsulates a 2D vector. Allows chaining methods by returning a reference to itself
 * @author badlogicgames@gmail.com
 */
declare class Vector2 implements Vector<Vector2> {
    data: Vec2;
    /**
     * Constructs a vector from the given vector
     * @param v The vector
     */
    constructor(data?: Vec2);
    x: number;
    y: number;
    clone(): Vector2;
    len(): number;
    sqrLen(): number;
    copy(v: Vector2): Vector2;
    /**
     * Sets the components of this vector
     * @param x The x-component
     * @param y The y-component
     * @return This vector for chaining
     */
    set(x: number, y: number): Vector2;
    sub(v: Vector2): Vector2;
    nor(): Vector2;
    add(v: Vector2): this;
    dot(v: Vector2): number;
    scale(scalar: number): Vector2;
    scaleAndAdd(vec: Vector2, scalar: number): Vector2;
    dst(v: Vector2): number;
    dst2(v: Vector2): number;
    limit(limit: number): Vector2;
    limit2(limit2: number): Vector2;
    epsilonEquals(other: Vector2, epsilon: number): boolean;
    isZero(): boolean;
    setZero(): Vector2;
}
export default Vector2;