import { System } from "../../core/System";
import type { Sprite } from "../entities/widgets/Sprite";
import type { Projectile } from "../entities/widgets/sprites/Projectile";
export declare class ProjectileSystem extends System<Projectile> {
    readonly pure = true;
    test(entity: Sprite): entity is Projectile;
    update(projectile: Projectile): void;
}