import { type ComputedRef, type DefineComponent, type Ref } from "vue";
import type { vec } from "../vec";
export type ConstraintFunction = (position: vec.Vector2) => vec.Vector2;
export interface UseMovablePointArguments {
    color?: string;
    /**
     * Constrain the point to only horizontal movement, vertical movement, or mapped movement.
     *
     * In mapped movement mode, you must provide a function that maps the user's attempted position
     * (x, y) to the position the point should "snap" to.
     */
    constrain?: "horizontal" | "vertical" | ConstraintFunction;
}
export interface UseMovablePoint {
    x: Ref<number>;
    y: Ref<number>;
    point: Ref<vec.Vector2>;
    element: ComputedRef<DefineComponent>;
}
export declare function useMovablePoint(initialPoint: vec.Vector2, { constrain, color }?: UseMovablePointArguments): UseMovablePoint;