/**
 * Block matrices are used to represent faces with more than four
 * sides. Each corner section is stored as a normal matrix, followed
 * by rows of middle values, and a center value if necessary.
 *
 * To help visualize block matrices, see the following representation
 * of a teraminx, https://www.desmos.com/geometry/qxudy50gag
 *
 * [
 *   [
 *     ['a0', 'a1', 'a2', 'a3', 'a4', 'a5', 'a6', 'a7', 'a8'], // <- five 3x3 matrices
 *     ['b0', 'b1', 'b2', 'b3', 'b4', 'b5', 'b6', 'b7', 'b8'],
 *     ['c0', 'c1', 'c2', 'c3', 'c4', 'c5', 'c6', 'c7', 'c8'],
 *     ['d0', 'd1', 'd2', 'd3', 'd4', 'd5', 'd6', 'd7', 'd8'],
 *     ['e0', 'e1', 'e2', 'e3', 'e4', 'e5', 'e6', 'e7', 'e8'],
 *   ],
 *   [
 *     ['f0', 'f1', 'f2'], // <- five 3x1 matrices
 *     ['g0', 'g1', 'g2'],
 *     ['h0', 'h1', 'h2'],
 *     ['i0', 'i1', 'i2'],
 *     ['j0', 'j1', 'j2'],
 *   ],
 *   'center', // <- one middle
 * ]
 */
export type BlockLayer<T> = [T[], T | undefined, T[]];
export type BlockMatrix<T> = [T[][]] | [T[][], (T | undefined)[][], T];
export type BlockMatrixObj = {
    index: number;
    matrix: number;
};
/**
 * Create a block matrix.
 *
 * @param {number} polygon number of polygon sides, must be >= 5
 * @param {number} depth size of block matrix. kilominx would be 2, megaminx would be 3, etc...
 * @param {Function} fn function to set initial values
 */
export declare function createBlockMatrix<T>(polygon: number, depth: number, fn: (obj: BlockMatrixObj) => T): BlockMatrix<T>;
/**
 * Extract layer from block matrix.
 *
 * @param {BlockMatrix<T>} block
 * @param {number} angle
 * @param {number} depth
 */
export declare function extractBlockLayer<T>(block: BlockMatrix<T>, angle: number, depth: number): BlockLayer<T>;
/**
 * Inject layer to block matrix.
 *
 * @param {BlockMatrix<T>} block
 * @param {BlockLayer<T>} layer
 * @param {number} angle
 * @param {number} depth
 */
export declare function injectBlockLayer<T>(block: BlockMatrix<T>, layer: BlockLayer<T>, angle: number, depth: number): BlockMatrix<T>;
/**
 * Iterate over all members of a block matrix.
 */
export declare function iterateBlockMatrix<T>(block: BlockMatrix<T>, fn: (val: T) => void): void;
/**
 * Rotate a block matrix.
 *
 * @param {BlockMatrix<T>} block
 * @param {number} rotation
 */
export declare function rotateBlockMatrix<T>(block: BlockMatrix<T>, rotation: number): BlockMatrix<T>;