blaze-2d/lib/src/physics/ray.js

A fast and simple WebGL 2 2D game engine written in TypeScript

import Logger from "../logger";
import LineCollider from "./collider/line";
import Physics from "./physics";
/**
 * 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 {
    /**
     * 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, direction, length) {
        if (length === Infinity)
            throw Logger.error("Ray", "Ray length cannot be Infinity.");
        super(origin, direction, length, Physics.G_CONF.POINT_SIZE);
        this.direction = direction;
        this.length = length;
    }
    /**
     * Gets the direction of the ray.
     *
     * @returns The direction of the ray
     */
    getDirection() {
        return this.direction;
    }
    /**
     * Gets the length of the ray.
     *
     * @returns The length of the ray
     */
    getLength() {
        return this.length;
    }
}
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