/**
 * Advanced bitboard operations and position utilities
 *
 * This module provides fast bitboard manipulation for move generation
 * and attack detection.
 */
import { Bitboard, SquareIndex } from '../types';
/**
 * File masks (A-H files)
 */
export declare const FILE_MASKS: readonly Bitboard[];
/**
 * Rank masks (1-8 ranks)
 */
export declare const RANK_MASKS: readonly Bitboard[];
/**
 * Diagonal masks (A1-H8 diagonals)
 */
export declare const DIAGONAL_MASKS: readonly Bitboard[];
/**
 * Anti-diagonal masks (H1-A8 diagonals)
 */
export declare const ANTI_DIAGONAL_MASKS: readonly Bitboard[];
/**
 * Edge masks
 */
export declare const EDGE_MASK = 18411139144890810879n;
export declare const NOT_A_FILE = 18374403900871474942n;
export declare const NOT_H_FILE = 9187201950435737471n;
export declare const NOT_AB_FILE = 18229723555195321596n;
export declare const NOT_GH_FILE = 4557430888798830399n;
export declare const NOT_RANK_1 = 18446744073709551360n;
export declare const NOT_RANK_8 = 72057594037927935n;
/**
 * Shift bitboard north (towards rank 8)
 */
export declare function shiftNorth(bb: Bitboard): Bitboard;
/**
 * Shift bitboard south (towards rank 1)
 */
export declare function shiftSouth(bb: Bitboard): Bitboard;
/**
 * Shift bitboard east (towards H-file)
 */
export declare function shiftEast(bb: Bitboard): Bitboard;
/**
 * Shift bitboard west (towards A-file)
 */
export declare function shiftWest(bb: Bitboard): Bitboard;
/**
 * Shift bitboard north-east
 */
export declare function shiftNorthEast(bb: Bitboard): Bitboard;
/**
 * Shift bitboard north-west
 */
export declare function shiftNorthWest(bb: Bitboard): Bitboard;
/**
 * Shift bitboard south-east
 */
export declare function shiftSouthEast(bb: Bitboard): Bitboard;
/**
 * Shift bitboard south-west
 */
export declare function shiftSouthWest(bb: Bitboard): Bitboard;
/**
 * Get file mask for a square
 */
export declare function getFileMask(index: SquareIndex): Bitboard;
/**
 * Get rank mask for a square
 */
export declare function getRankMask(index: SquareIndex): Bitboard;
/**
 * Get diagonal mask for a square (A1-H8 direction)
 */
export declare function getDiagonalMask(index: SquareIndex): Bitboard;
/**
 * Get anti-diagonal mask for a square (H1-A8 direction)
 */
export declare function getAntiDiagonalMask(index: SquareIndex): Bitboard;
export declare function getRookAttacks(square: SquareIndex, occupied: Bitboard): Bitboard;
export declare function getBishopAttacks(square: SquareIndex, occupied: Bitboard): Bitboard;
export declare function getQueenAttacks(square: SquareIndex, occupied: Bitboard): Bitboard;
/**
 * Pre-computed king attack bitboards for each square
 */
export declare const KING_ATTACKS: Bitboard[];
/**
 * Pre-computed knight attack bitboards for each square
 */
export declare const KNIGHT_ATTACKS: Bitboard[];
/**
 * Initialize pre-computed attack tables
 */
export declare function initializeAttackTables(): void;
/**
 * Get king attacks for a square
 */
export declare function getKingAttacks(square: SquareIndex): Bitboard;
/**
 * Get knight attacks for a square
 */
export declare function getKnightAttacks(square: SquareIndex): Bitboard;
/**
 * Get white pawn attacks for a square
 */
export declare function getWhitePawnAttacks(square: SquareIndex): Bitboard;
/**
 * Get black pawn attacks for a square
 */
export declare function getBlackPawnAttacks(square: SquareIndex): Bitboard;
/**
 * Get all white pawn attacks from a bitboard of white pawns
 */
export declare function getWhitePawnsAttacks(pawns: Bitboard): Bitboard;
/**
 * Get all black pawn attacks from a bitboard of black pawns
 */
export declare function getBlackPawnsAttacks(pawns: Bitboard): Bitboard;
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