import { System } from "../../core/System";
import { AttackTarget } from "../components/AttackTarget";
import type { Sprite } from "../entities/widgets/Sprite";
import type { Unit } from "../entities/widgets/sprites/Unit";
export declare class AttackSystem extends System<Unit> {
    static components: (typeof AttackTarget)[];
    readonly pure = false;
    test(entity: Sprite): entity is Unit;
    update(entity: Unit): void;
}