import { Application, Container } from 'pixi.js';
export interface ViewportOptions {
    width: number;
    height: number;
    gridWidth: number;
    gridHeight: number;
    tileSize: number;
    backgroundColor?: number;
}
export declare class WorldViewport {
    app: Application;
    world: Container;
    private gridOverlay;
    private _showGrid;
    private _zoom;
    private _panX;
    private _panY;
    private opts;
    private _initialized;
    private _destroyed;
    private _destroyedWarned;
    constructor(opts: ViewportOptions);
    /**
     * INF-B-003: Guard used by every public method. Returns true if the viewport
     * has been destroyed, and emits a single console.warn the first time it fires
     * so log floods don't drown out the signal.
     */
    private warnIfDestroyed;
    init(container: HTMLElement): Promise<void>;
    /**
     * INF-B-002: Returns true once init() has completed successfully. Consumers
     * use this to decide whether it's safe to hand the viewport off to renderers.
     */
    isMounted(): boolean;
    private drawGrid;
    pan(dx: number, dy: number): void;
    zoom(factor: number): void;
    centerOnTile(gridX: number, gridY: number): void;
    set showGrid(v: boolean);
    get showGrid(): boolean;
    get zoomLevel(): number;
    destroy(): void;
}
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