import type { Room } from "../room/base.js";
import type { State } from "../state/state.js";
import type { TwoSidedTrait } from "../traits/twoSided.js";
import { Command, Targets, TargetsHolder } from "../command.js";
/**
 * Reveal the front side (overse) of an element
 */
export declare class FaceUp extends Command {
    targets: TargetsHolder<TwoSidedTrait>;
    constructor(entities: Targets<TwoSidedTrait>);
    execute(state: State, room: Room<any>): Promise<void>;
    undo(state: State, room: Room<any>): Promise<void>;
}
/**
 * Reveal the back side (revers) of an element
 */
export declare class FaceDown extends Command {
    targets: TargetsHolder<TwoSidedTrait>;
    constructor(entities: Targets<TwoSidedTrait>);
    execute(state: State, room: Room<any>): Promise<void>;
    undo(state: State, room: Room<any>): Promise<void>;
}
/**
 * Flip the element to reveal its other side
 */
export declare class Flip extends Command {
    targets: TargetsHolder<TwoSidedTrait>;
    constructor(entities: Targets<TwoSidedTrait>);
    execute(state: State, room: Room<any>): Promise<void>;
    undo(state: State, room: Room<any>): Promise<void>;
}