/**
 * Options of the `anim` component accepted by {@link AnimComponentSystem} that differ from the
 * properties of {@link AnimComponent}. Each replaces the same-named property of the options that
 * {@link Entity#addComponent} derives from the component class; see
 * {@link ComponentOptionsOverrides}.
 */
export type AnimComponentOptionsOverrides = {
    /**
     * -
     * Layers to add with {@link AnimComponent#addLayer}, each with a `name` and optional `weight`,
     * `mask` and `blendType`.
     */
    layers?: {
        name: string;
        weight?: number;
        mask?: object;
        blendType?: string;
    }[];
    /**
     * - Bone masks to assign to the added
     * layers, keyed by layer name.
     */
    masks?: {
        [layer: string]: {
            mask: object;
        };
    };
};
/**
 * @import { AppBase } from '../../app-base.js'
 * @import { Component } from '../component.js'
 * @import { Entity } from '../../entity.js'
 */
/**
 * Options of the `anim` component accepted by {@link AnimComponentSystem} that differ from the
 * properties of {@link AnimComponent}. Each replaces the same-named property of the options that
 * {@link Entity#addComponent} derives from the component class; see
 * {@link ComponentOptionsOverrides}.
 *
 * @typedef {object} AnimComponentOptionsOverrides
 * @property {{ name: string, weight?: number, mask?: object, blendType?: string }[]} [layers] -
 * Layers to add with {@link AnimComponent#addLayer}, each with a `name` and optional `weight`,
 * `mask` and `blendType`.
 * @property {{ [layer: string]: { mask: object } }} [masks] - Bone masks to assign to the added
 * layers, keyed by layer name.
 * @ignore
 */
/**
 * Manages the {@link AnimComponent}s of an application and advances their state graphs each
 * frame. Reach it through `app.systems.anim`; components are created with
 * {@link Entity#addComponent}, never by calling the system directly.
 *
 * @category Animation
 */
export class AnimComponentSystem extends ComponentSystem {
    id: string;
    ComponentType: typeof AnimComponent;
    initializeComponentData(component: any, data: any, properties: any): void;
    onAnimationUpdate(dt: any): void;
    /**
     * Rebinds every component animating a hierarchy which contains the entity whose mesh instances
     * changed. Anim targets which reference mesh instances - morph target weights and animated
     * material textures - are resolved once and then cached, so they have to be re-resolved when the
     * mesh instances they point at are created or destroyed. Disabled components are included, as
     * they keep their bindings and are not rebound when re-enabled.
     *
     * @param {Component} component - The component whose mesh instances changed.
     * @private
     */
    private onMeshInstancesChange;
    cloneComponent(entity: any, clone: any): Component;
    onBeforeRemove(entity: any, component: any): void;
}
import { ComponentSystem } from '../system.js';
import { AnimComponent } from './component.js';
import type { Component } from '../component.js';