import { AnimationClip } from './AnimationClip';

export function arraySlice(array: any, from: number, to: number): any;
export function convertArray(array: any, type: any, forceClone: boolean): any;
export function isTypedArray(object: any): boolean;
export function getKeyframeOrder(times: number[]): number[];
export function sortedArray(values: any[], stride: number, order: number[]): any[];
export function flattenJSON(jsonKeys: string[], times: any[], values: any[], valuePropertyName: string): void;

/**
 * @param sourceClip
 * @param name
 * @param startFrame
 * @param endFrame
 * @param [fps=30]
 */
export function subclip(
    sourceClip: AnimationClip,
    name: string,
    startFrame: number,
    endFrame: number,
    fps?: number,
): AnimationClip;

/**
 * @param targetClip
 * @param [referenceFrame=0]
 * @param [referenceClip=targetClip]
 * @param [fps=30]
 */
export function makeClipAdditive(
    targetClip: AnimationClip,
    referenceFrame?: number,
    referenceClip?: AnimationClip,
    fps?: number,
): AnimationClip;