import { mat3, vec2 } from 'gl-matrix';
import { AABB } from '../aabb';
import { Shape, MassDistribution } from '../types';
export declare class Vertex {
    readonly point: Readonly<vec2>;
    readonly normal: Readonly<vec2>;
    readonly prev: Vertex;
    readonly next: Vertex;
    readonly edge0: Edge;
    readonly edge1: Edge;
    constructor(point: Readonly<vec2>);
}
export declare class Edge {
    readonly v0: Readonly<Vertex>;
    readonly v1: Readonly<Vertex>;
    readonly normal: vec2;
    readonly prev: Edge;
    readonly next: Edge;
    constructor(v0: Readonly<Vertex>, v1: Readonly<Vertex>);
}
export declare class Polygon implements Shape, MassDistribution {
    readonly points: Readonly<vec2[]>;
    readonly transformOrigin: boolean;
    readonly radius: number;
    readonly loop: Vertex;
    readonly edgeLoop: Edge;
    cachedSupportVertex: Readonly<Vertex>;
    /**
     * @param points array of couter-clock wise oriented loop of points
     * @param transformOrigin
     */
    constructor(points: Readonly<vec2[]>, transformOrigin?: boolean);
    support(out: vec2, dir: Readonly<vec2>, margin?: number): vec2;
    aabb(out: AABB, transform: mat3): AABB;
    testPoint(point: vec2): boolean;
    inetria(mass: number): number;
    vertices(): Iterable<Vertex>;
    edges(): Iterable<Edge>;
    private transformOriginToCentroid;
    private getRadius;
    private createVertexLoop;
    private createEdgeLoop;
}