import { Behaviour } from "./Component.js";
/**
 * The [AlignmentConstraint](https://engine.needle.tools/docs/api/AlignmentConstraint) positions and scales this GameObject to span between two target objects.
 * The object is rotated to face `to` and scaled along Z to match the distance.
 *
 * **Use cases:**
 * - Dynamic beams or laser effects between objects
 * - Stretchy connectors or ropes
 * - Visual links between UI elements
 * - Debug lines between transforms
 *
 * **How it works:**
 * - Position: Centered between `from` and `to` (or at `from` if not centered)
 * - Rotation: Looks at `to` from `from`
 * - Scale: Z-axis scales to match distance, X/Y use `width`
 *
 * @example Create a beam between two objects
 * ```ts
 * const beam = beamMesh.addComponent(AlignmentConstraint);
 * // Set targets via serialized properties in editor
 * // or via code if properties are exposed
 * ```
 *
 * @summary Aligns and scales object between two targets
 * @category Constraints
 * @group Components
 * @see {@link LookAtConstraint} for rotation-only constraints
 * @see {@link SmoothFollow} for following with smoothing
 **/
export declare class AlignmentConstraint extends Behaviour {
    private from;
    private to;
    private width;
    private centered;
    private _centerPos;
    awake(): void;
    update(): void;
}
