import { PolarPoint } from '../utils/polar-point';
export interface Board {
    radius: number;
    rings: number[];
    sectors: number[];
}
export declare const createBoard: () => {
    radius: number;
    rings: number[];
    sectors: number[];
};
export declare const radiansToDegrees: (radians: number) => number;
/** Gets the size of the angle in radians for a single board sector */
export declare const getSectorWidth: (b: Board) => number;
/** Gets the point value for the sector at the given index */
export declare const getSectorValue: (board: Board, i: number) => number;
/** Get the index of the sector that has the given value */
export declare const getSectorIndex: (board: Board, sectorValue: number) => number | undefined;
/** Gets the distance from center that is the center point of the ring */
export declare const getRingCenter: (board: Board, ring: number) => number;
/**
 * Gets the point coordinate of the center of a given area
 * of the board defined by the sector and ring
 */
export declare const getTargetPoint: (board: Board, sectorIndex: number, ringIndex: number) => PolarPoint;
/**
 * Creates a random point within a given sector and ring
 * @param board Board object containing rings and sectors
 * @param sectorIndex Sector the point should lie within
 * @param ringIndex Ring the point should lie within
 * @param rng Random number generator
 */
export declare const getRandomPoint: (board: Board, sectorIndex: number, ringIndex: number, rng?: () => number) => PolarPoint;
/**
 * Gets the index of the sector the point is in
 * @param board Board object containing rings and sectors
 * @param p PolarPoint on the board
 */
export declare const getSectorIndexFromPoint: (board: Board, p: PolarPoint) => number;
/**
 * Gets the index of the ring the point is in
 * @param board Board object containing rings and sectors
 * @param p PolarPoint on the board
 */
export declare const getRingIndexFromPoint: (board: Board, p: PolarPoint) => number | undefined;