import type { GameObject, Component } from '@certe/atmos-core';
/** Walk up the parent chain (including self) to find the first component of type Ctor. */
export declare function findAncestorComponent<T extends Component>(go: GameObject, Ctor: new (...args: never[]) => T): T | null;
/** Check whether any ancestor (excluding self) has a component of type Ctor. */
export declare function hasAncestorComponent<T extends Component>(go: GameObject, Ctor: new (...args: never[]) => T): boolean;
/** Check whether any descendant (excluding self) has a component of type Ctor. */
export declare function hasDescendantComponent<T extends Component>(go: GameObject, Ctor: new (...args: never[]) => T): boolean;
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