import { AnyConfig } from '../config.js';
import { SymbolMergeHandler } from '../events/onSymbolMerge.js';
import GridData from '../grid.js';
import { OrientationToggle, State } from '../primitives.js';
import Symbol from './symbol.js';
export default class MyopiaSymbol extends Symbol implements SymbolMergeHandler {
    readonly diagonals: boolean;
    readonly directions: OrientationToggle;
    get title(): "Framed Myopia Arrow" | "Myopia Arrow";
    private static readonly CONFIGS;
    private static readonly EXAMPLE_GRID;
    private static readonly EXAMPLE_DIAGONAL_GRID;
    /**
     * **Viewpoint Numbers count visible cells in the four directions**
     * @param x - The x-coordinate of the symbol.
     * @param y - The y-coordinate of the symbol.
     * @param diagonals - Whether the symbol should consider diagonal directions.
     * @param directions - The directions in which an arrow is pointing.
     */
    constructor(x: number, y: number, diagonals: boolean, directions: OrientationToggle);
    get id(): string;
    get placementStep(): number;
    get explanation(): string;
    get configs(): readonly AnyConfig[] | null;
    createExampleGrid(): GridData;
    validateSymbol(grid: GridData): State;
    descriptionEquals(other: Symbol): boolean;
    copyWith({ x, y, diagonals, directions, }: {
        x?: number;
        y?: number;
        diagonals?: boolean;
        directions?: OrientationToggle;
    }): this;
    withDirections(directions: OrientationToggle): this;
    withDiagonals(diagonals: boolean): this;
}
export declare const instance: MyopiaSymbol;