import { Mat3 } from './Mat3';
import { EventHandler } from '../render/eventhandler';
export declare class Vec2 extends EventHandler {
    private _x;
    private _y;
    isVec2: boolean;
    constructor(_x?: number, _y?: number);
    get x(): number;
    set x(value: number);
    get y(): number;
    set y(value: number);
    static isVec2(v: any): boolean;
    get width(): number;
    set width(value: number);
    get height(): number;
    set height(value: number);
    static get UnitX(): Vec2;
    static get UnitY(): Vec2;
    set(x: number, y: number): this;
    setScalar(scalar: number): this;
    setX(x: number): this;
    setY(y: number): this;
    setComponent(index: number, value: number): this;
    getComponent(index: number): number;
    clone(): Vec2;
    copy(v: Vec2): Vec2;
    add(v: Vec2, w?: Vec2): this;
    addScalar(s: number): this;
    addVecs(a: Vec2, b: Vec2): this;
    addScaledVec(v: Vec2, s: number): this;
    sub(v: Vec2, w: Vec2): this;
    subScalar(s: number): this;
    subVecs(a: Vec2, b: Vec2): this;
    multiply(v: Vec2): this;
    multiplyScalar(scalar: number): this;
    divide(v: Vec2): this;
    divideScalar(scalar: number): this;
    applyMat3(m: Mat3): this;
    min(v: Vec2): this;
    max(v: Vec2): this;
    clamp(min: Vec2, max: Vec2): this;
    clampScalar(minVal: number, maxVal: number): this;
    clampLength(min: number, max: number): this;
    floor(): this;
    ceil(): this;
    round(): this;
    roundToZero(): this;
    negate(): this;
    dot(v: Vec2): number;
    cross(v: Vec2): number;
    lengthSq(): number;
    length(): number;
    manhattanLength(): number;
    normalize(): this;
    angle(): number;
    distanceTo(v: Vec2): number;
    distanceToSquared(v: Vec2): number;
    manhattanDistanceTo(v: Vec2): number;
    setLength(length: number): this;
    lerp(v: Vec2, alpha: number): this;
    lerpVecs(v1: Vec2, v2: Vec2, alpha: number): this;
    equals(v: Vec2): boolean;
    fromArray(array: number[], offset?: number): this;
    toArray(array?: number[], offset?: number): number[];
    fromBufferAttribute(attribute: any, index: number, offset: any): this;
    rotateAround(center: Vec2, angle: number): this;
}
export declare function v2(): Vec2;