import { Vector2d } from "../math/vector2d.ts";
import Renderable from "../renderable/renderable.js";
import CanvasRenderer from "../video/canvas/canvas_renderer.js";
import WebGLRenderer from "../video/webgl/webgl_renderer.js";
import ParticleEmitter from "./emitter.ts";
/**
 * Single Particle Object.
 * @category Particles
 */
export default class Particle extends Renderable {
    vel: Vector2d;
    image: any;
    life: number;
    startLife: number;
    startScale: number;
    endScale: number;
    gravity: number;
    wind: number;
    followTrajectory: boolean;
    onlyInViewport: boolean;
    _deltaInv: number;
    _angle: number;
    alive: boolean;
    /**
     * @param emitter - the particle emitter
     */
    constructor(emitter: ParticleEmitter);
    /**
     * @ignore
     */
    onResetEvent(emitter: ParticleEmitter, newInstance?: boolean): void;
    /**
     * Update the Particle <br>
     * This is automatically called by the game manager {@link game}
     * @ignore
     * @param dt - time since the last update in milliseconds
     */
    update(dt: number): boolean;
    /**
     * @ignore
     */
    draw(renderer: CanvasRenderer | WebGLRenderer): void;
}
export declare const particlePool: import("../system/pool.ts").Pool<Particle, [emitter: ParticleEmitter]>;
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