import type { CLEAR_MODES } from '@pixi/core';
import { Filter } from '@pixi/core';
import type { FilterSystem } from '@pixi/core';
import type { Point } from '@pixi/core';
import type { RenderTexture } from '@pixi/core';

declare type PointLike = Point | number[];

/**
 * The ShockwaveFilter class lets you apply a shockwave effect.<br>
 * ![original](../tools/screenshots/dist/original.png)![filter](../tools/screenshots/dist/shockwave.gif)
 *
 * @class
 * @extends PIXI.Filter
 * @see {@link https://www.npmjs.com/package/@pixi/filter-shockwave|@pixi/filter-shockwave}
 * @see {@link https://www.npmjs.com/package/pixi-filters|pixi-filters}
 */
export declare class ShockwaveFilter extends Filter {
    /** Default constructor options. */
    static readonly defaults: ShockwaveFilterOptions;
    /**
     * Sets the elapsed time of the shockwave.
     * It could control the current size of shockwave.
     */
    time: number;
    /**
     * @param {PIXI.Point|number[]} [center=[0.5, 0.5]] - See `center` property.
     * @param {object} [options] - The optional parameters of shockwave filter.
     * @param {number} [options.amplitude=0.5] - See `amplitude`` property.
     * @param {number} [options.wavelength=1.0] - See `wavelength` property.
     * @param {number} [options.speed=500.0] - See `speed` property.
     * @param {number} [options.brightness=8] - See `brightness` property.
     * @param {number} [options.radius=4] - See `radius` property.
     * @param {number} [time=0] - See `time` property.
     */
    constructor(center?: PointLike, options?: Partial<ShockwaveFilterOptions>, time?: number);
    apply(filterManager: FilterSystem, input: RenderTexture, output: RenderTexture, clear: CLEAR_MODES): void;
    /**
     * Sets the center of the shockwave in normalized screen coords. That is
     * (0,0) is the top-left and (1,1) is the bottom right.
     *
     * @member {PIXI.Point|number[]}
     */
    get center(): PointLike;
    set center(value: PointLike);
    /**
     * The amplitude of the shockwave.
     */
    get amplitude(): number;
    set amplitude(value: number);
    /**
     * The wavelength of the shockwave.
     */
    get wavelength(): number;
    set wavelength(value: number);
    /**
     * The brightness of the shockwave.
     */
    get brightness(): number;
    set brightness(value: number);
    /**
     * The speed about the shockwave ripples out.
     * The unit is `pixel/second`
     */
    get speed(): number;
    set speed(value: number);
    /**
     * The maximum radius of shockwave.
     * `< 0.0` means it's infinity.
     */
    get radius(): number;
    set radius(value: number);
}

declare interface ShockwaveFilterOptions {
    amplitude: number;
    wavelength: number;
    speed: number;
    brightness: number;
    radius: number;
}

export { }