import { Behaviour } from "./Component.js";
/**
 * The [OffsetConstraint](https://engine.needle.tools/docs/api/OffsetConstraint) maintains a fixed positional and rotational offset relative to a target object.
 * Useful for attaching objects to moving targets while preserving a specific spatial relationship.
 *
 * **Use cases:**
 * - Camera following a player with offset
 * - UI elements attached to characters
 * - Weapons attached to hands
 * - Objects orbiting around a target
 *
 * **Options:**
 * - `affectPosition` - Apply position offset
 * - `affectRotation` - Apply rotation offset
 * - `alignLookDirection` - Make object face same direction as target
 * - `levelLookDirection` - Keep look direction horizontal (ignore pitch)
 * - `levelPosition` - Project position onto horizontal plane
 * - `referenceSpace` - Transform offset in this object's coordinate space
 *
 * @example Attach camera offset to player
 * ```ts
 * const constraint = camera.addComponent(OffsetConstraint);
 * // Configure via serialized properties in editor
 * ```
 *
 * @summary Maintains positional/rotational offset relative to target
 * @category Constraints
 * @group Components
 * @see {@link SmoothFollow} for smoothed following
 * @see {@link AlignmentConstraint} for alignment between two objects
 */
export declare class OffsetConstraint extends Behaviour {
    private referenceSpace;
    private from;
    private affectPosition;
    private affectRotation;
    private alignLookDirection;
    private levelLookDirection;
    private levelPosition;
    private positionOffset;
    private rotationOffset;
    private offset;
    update(): void;
}