import { Structure } from '../core/index.js';
import type { NbtCompound } from '../nbt/index.js';
/**
 * Loads Minecraft Litematica schematic files (.litematic)
 *
 * Litematic format specification:
 * - Root contains: MinecraftDataVersion, Version, Metadata, Regions, SubVersion
 * - Each region has: Size, Position, BlockStatePalette, BlockStates (packed long array)
 * - BlockStates is packed with variable bit width based on palette size
 */
export declare class LitematicLoader {
    /**
     * Loads a litematic file from a buffer
     * @param buffer The litematic file data (gzip compressed NBT)
     * @param regionName Optional region name to load (default: first region)
     * @returns Structure containing the loaded blocks
     */
    static load(buffer: Uint8Array, regionName?: string): Structure;
    /**
     * Loads a litematic from parsed NBT data
     * @param root The root NBT compound
     * @param regionName Optional region name to load (default: first region)
     * @returns Structure containing the loaded blocks
     */
    static fromNbt(root: NbtCompound, regionName?: string): Structure;
    private static loadRegion;
    /**
     * Unpacks a long array containing packed indices
     * Based on the litematic-viewer reference implementation
     * @param longs Array of longs (as [high, low] pairs from NBT)
     * @param nbits Number of bits per entry
     * @param width Region width
     * @param height Region height
     * @param depth Region depth
     * @returns Flat block palette indices in YZX order
     */
    private static unpackBlockData;
    /**
     * Gets metadata from a litematic file
     */
    static getMetadata(buffer: Uint8Array): {
        name: string;
        author: string;
        description: string;
        totalBlocks: number;
        totalVolume: number;
        regionCount: number;
        size: {
            x: number;
            y: number;
            z: number;
        };
    };
}
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