import { Pointer } from 'ol/interaction'
import type MapBrowserEvent from 'ol/MapBrowserEvent'
import type { Pixel } from 'ol/pixel'
import type { Layer } from 'ol/layer'

export interface Options {
  layer?: Layer;
  radius?: number;
  interval?: number;
}

/**
 * @constructor
 * @extends {ol_interaction_Pointer}

 */
export default class Ripple extends Pointer {
  /**
   * @param {*} options
   *  @param {ol/layer/Layer} options.layer layer to animate
   *  @param {number} options.radius raindrop radius
   *  @param {number} options.interval raindrop interval (in ms), default 1000
   */
  constructor(options?: Options);

  /** Set the map > start postcompose
   */
  setMap(): void;

  /** Generate random rain drop
   *  @param {number} interval
   */
  rains(interval: number): void;

  /** Disturb water at specified point
   *  @param {Pixel|MapBrowserEvent<UIEvent>}
   */
  rainDrop(e: Pixel | MapBrowserEvent<UIEvent>): void;
}