import { Entity } from '../../engine/entity';
import { ComponentDefinition, IEngine } from '../../engine';
/**
 * Get an iterator of entities that follow a tree structure for a component
 * @public
 * @param engine - the engine running the entities
 * @param entity - the root entity of the tree
 * @param component - the parenting component to filter by
 * @returns An iterator of an array as [entity, entity2, ...]
 *
 * Example:
 * ```ts
 * const TreeComponent = engine.defineComponent('custom::TreeComponent', {
 *    label: Schemas.String,
 *    parent: Schemas.Entity
 * })
 *
 * for (const entity of getComponentEntityTree(engine, entity, TreeComponent)) {
 *    // entity in the tree
 * }
 * ```
 */
export declare function getComponentEntityTree<T>(engine: Pick<IEngine, 'getEntitiesWith'>, entity: Entity, component: ComponentDefinition<T & {
    parent?: Entity;
}>): Generator<Entity>;
/**
 * Remove all components of each entity in the tree made with Transform parenting
 * @param engine - the engine running the entities
 * @param firstEntity - the root entity of the tree
 * @public
 */
export declare function removeEntityWithChildren(engine: Pick<IEngine, 'getEntitiesWith' | 'defineComponentFromSchema' | 'removeEntity' | 'defineComponent'>, entity: Entity): void;