/**
 * Variable: DIRECTION_NORTH
 *
 * Constant for direction north. Default is north.
 */
export declare const DIRECTION_NORTH = "north";
/**
 * Variable: DIRECTION_SOUTH
 *
 * Constant for direction south. Default is south.
 */
export declare const DIRECTION_SOUTH = "south";
/**
 * Variable: DIRECTION_EAST
 *
 * Constant for direction east. Default is east.
 */
export declare const DIRECTION_EAST = "east";
/**
 * Variable: DIRECTION_WEST
 *
 * Constant for direction west. Default is west.
 */
export declare const DIRECTION_WEST = "west";
/**
 * Variable: DIRECTION_MASK_NONE
 *
 * Constant for no direction.
 */
export declare const DIRECTION_MASK_NONE = 0;
/**
 * Variable: DIRECTION_MASK_WEST
 *
 * Bitwise mask for west direction.
 */
export declare const DIRECTION_MASK_WEST = 1;
/**
 * Variable: DIRECTION_MASK_NORTH
 *
 * Bitwise mask for north direction.
 */
export declare const DIRECTION_MASK_NORTH = 2;
/**
 * Variable: DIRECTION_MASK_SOUTH
 *
 * Bitwise mask for south direction.
 */
export declare const DIRECTION_MASK_SOUTH = 4;
/**
 * Variable: DIRECTION_MASK_EAST
 *
 * Bitwise mask for east direction.
 */
export declare const DIRECTION_MASK_EAST = 8;
/**
 * Variable: DIRECTION_MASK_ALL
 *
 * Bitwise mask for all directions.
 */
export declare const DIRECTION_MASK_ALL = 15;