import { vec2 } from "gl-matrix";
import LineCollider from "./collider/line";
/**
 * Represents a ray that can be used for raycasting.
 *
 * A {@link Ray} is really a {@link LineCollider} with a weight of `Physics.G_CONF.POINT_SIZE`.
 */
export default class Ray extends LineCollider {
    private direction;
    private length;
    /**
     * Create a {@link Ray}.
     *
     * @param origin The ray's starting position
     * @param direction The direction of the ray
     * @param length The length of the ray
     */
    constructor(origin: vec2, direction: vec2, length: number);
    /**
     * Gets the direction of the ray.
     *
     * @returns The direction of the ray
     */
    getDirection(): vec2;
    /**
     * Gets the length of the ray.
     *
     * @returns The length of the ray
     */
    getLength(): number;
}