import { Module } from "../module";
export declare abstract class ParticleGenerator extends Module {
    /**
     * Interval between generated particles as milliseconds
     * (as long as `Generator.active === true`)
     */
    interval: number;
    private _timer;
    /**
     * List of timestamps when a batch of particles can be generated.
     *
     * `time` is seconds since the particle effect was created,
     * and `count` is number of particles to generate.
     *
     * Optional `repeat` property can be supplied to supply a second interval which the batch is automatically repeated with afterwards.
     */
    bursts: Burst[];
    private _updateCounter;
    update(dt: number): void;
    /**
     * Function that can be used to generate a single particle.
     */
    abstract generateParticle(): void;
}
export declare type Burst = {
    time: number;
    count: number;
    repeat?: number;
};