import { JGOFNumericPlayerColor } from "../formats";
/**
 * This is intended to be an "easy to understand" method of generating a unique id
 * for a board position.
 *
 * The "id" is the list of all the positions of the stones, black first then white,
 * separated by a colon.
 *
 * There are in fact 8 possible ways to list the positions (all the rotations and
 * reflections of the position).   The id is the lowest (alpha-numerically) of these.
 *
 * Colour independence for the position is achieved by takeing the lexically lower
 * of the ids of the position with black and white reversed.
 *
 * The "easy to understand" part is that the id can be compared visually to the
 * board position
 *
 * The downside is that the id string can be moderately long for boards with lots of stones
 */
export type BoardTransform = (x: number, y: number) => {
    x: number;
    y: number;
};
export declare function positionId(position: Array<Array<JGOFNumericPlayerColor>>, height: number, width: number): string;