/// <amd-module name="nova_ecs/events" />
import * as t from 'io-ts';
import { Entity } from './entity';
export declare class EcsEvent<Data, DataSerialized = Data> {
    private readonly eventSymbol;
    readonly name?: string;
    readonly type?: t.Type<Data, DataSerialized>;
    constructor(name?: string);
}
export declare const StepEvent: EcsEvent<true, true>;
export declare const DeleteEvent: EcsEvent<Set<[string, Entity]>, Set<[string, Entity]>>;
export declare const AddEvent: EcsEvent<[string, Entity], [string, Entity]>;
export declare type EventData<E> = E extends EcsEvent<infer Data, any> ? Data : never;
export declare type UnknownEvent = EcsEvent<unknown, unknown>;