import { OwnedEventEmitter } from './events';
import { Grid, GridItem } from './grid';
export declare class Piece extends GridItem {
    readonly id: number;
    constructor(x: number, y: number, index: number, id: number);
    isCorrect(): boolean;
}
export interface TapData {
    time: number;
    delta: number;
    x: number;
    y: number;
    index: number;
    piece: Piece;
    movedPieces: Piece[];
}
interface ToStringOptions {
    marginWidth?: number;
    marginHeight?: number;
    color?: number;
}
export declare class Puzzle extends Grid<Piece> {
    readonly events: OwnedEventEmitter<Puzzle>;
    taps: TapData[];
    constructor(pieces: Piece[][] | number[][]);
    clone(): Puzzle;
    readonly timeGenerated: number;
    get timeStarted(): number | null;
    get timeSolved(): number | null;
    protected _isSolvable: boolean | null;
    protected _isSolving: boolean | null;
    protected _isSolved: boolean | null;
    isSolvable(): boolean | null;
    isSolving(): boolean | null;
    isSolved(): boolean | null;
    checkSolvable(): boolean;
    checkSolving(): boolean;
    checkSolved(): boolean | null;
    toString({ marginWidth, marginHeight, color }?: ToStringOptions): string;
    get(x: number, y: number): Piece;
    get(id: number): Piece;
    set(x: number, y: number, piece: Piece): this;
    tap(x: number, y: number): TapData | null;
}
export {};