import { Vector3 } from './../../math/Vector3';
import { Curve } from './../core/Curve';

// Extras / Curves /////////////////////////////////////////////////////////////////////
export namespace CurveUtils {
  export function tangentQuadraticBezier(
    t: number,
    p0: number,
    p1: number,
    p2: number
  ): number;
  export function tangentCubicBezier(
    t: number,
    p0: number,
    p1: number,
    p2: number,
    p3: number
  ): number;
  export function tangentSpline(
    t: number,
    p0: number,
    p1: number,
    p2: number,
    p3: number
  ): number;
  export function interpolate(
    p0: number,
    p1: number,
    p2: number,
    p3: number,
    t: number
  ): number;
}

export class CatmullRomCurve3 extends Curve<Vector3> {
  constructor(
    points?: Vector3[],
    closed?: boolean,
    curveType?: string,
    tension?: number
  );

  points: Vector3[];

  getPoint(t: number): Vector3;
}