import { Node } from './node';
import { IGridConstructor, IPoint } from '../interfaces/astar.interfaces';
export declare class Grid {
    readonly width: number;
    readonly height: number;
    readonly numberOfFields: number;
    private gridNodes;
    constructor(aParams: IGridConstructor);
    /**
     * Build grid, fill it with nodes and return it.
     * @param matrix [ 0 or 1: 0 = walkable; 1 = not walkable ]
     * @param width [grid width]
     * @param height [grid height]
     * @param densityOfObstacles [density of non walkable fields]
     */
    private buildGridWithNodes;
    /**
     * Return a specific node.
     * @param position [position on the grid]
     */
    getNodeAt(position: IPoint): Node;
    /**
     * Check if specific node walkable.
     * @param position [position on the grid]
     */
    isWalkableAt(position: IPoint): boolean;
    /**
     * Check if specific node is on the grid.
     * @param position [position on the grid]
     */
    private isOnTheGrid;
    /**
     * Get surrounding nodes.
     * @param currentPosition [IPoint on the grid]
     * @param diagnonalMovementAllowed [is diagnonal movement allowed?]
     */
    getSurroundingNodes(currentPosition: IPoint, diagnonalMovementAllowed: boolean): Node[];
    setGrid(newGrid: Node[][]): void;
    /**
     * Reset the grid
     */
    resetGrid(): void;
    /**
     * Get all the nodes of the grid.
     */
    getGridNodes(): Node[][];
    /**
     * Get a clone of the grid
     */
    clone(): Node[][];
}