/**
 * Common Types and Utilities
 * Shared type definitions used across the AuraGlass design system
 */
/**
 * 2D Vector representation for position, velocity, and force calculations
 */
export interface Vector2D {
    x: number;
    y: number;
}
/**
 * Unsubscribe function type for event listeners and subscriptions
 * @returns void or Promise<void> for cleanup operations
 */
export type UnsubscribeFunction = () => void | Promise<void>;
/**
 * Generic callback function type
 */
export type CallbackFunction<T = void> = () => T;
/**
 * Event handler type with generic event parameter
 */
export type EventHandler<T = Event> = (event: T) => void;
/**
 * Async callback function type
 */
export type AsyncCallback<T = void> = () => Promise<T>;
/**
 * Subscription object with unsubscribe method
 */
export interface Subscription {
    unsubscribe: UnsubscribeFunction;
}
/**
 * Creates a subscription object from an unsubscribe function
 */
export declare const createSubscription: (unsubscribe: UnsubscribeFunction) => Subscription;
/**
 * Utility to create a 2D vector
 */
export declare const createVector2D: (x?: number, y?: number) => Vector2D;
/**
 * Add two vectors
 */
export declare const addVectors: (v1: Vector2D, v2: Vector2D) => Vector2D;
/**
 * Subtract two vectors
 */
export declare const subtractVectors: (v1: Vector2D, v2: Vector2D) => Vector2D;
/**
 * Multiply vector by scalar
 */
export declare const multiplyVector: (v: Vector2D, scalar: number) => Vector2D;
/**
 * Calculate magnitude of a vector
 */
export declare const vectorMagnitude: (v: Vector2D) => number;
/**
 * Normalize a vector
 */
export declare const normalizeVector: (v: Vector2D) => Vector2D;
/**
 * Calculate distance between two vectors
 */
export declare const vectorDistance: (v1: Vector2D, v2: Vector2D) => number;
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