import { CoordinateSystem } from "../constants.js";
import { Object3D } from "../core/Object3D.js";
import { Sprite } from "../objects/Sprite.js";
import { Box3 } from "./Box3.js";
import { Matrix4 } from "./Matrix4.js";
import { Plane } from "./Plane.js";
import { Sphere } from "./Sphere.js";
import { Vector3 } from "./Vector3.js";

/**
 * Frustums are used to determine what is inside the camera's field of view. They help speed up the rendering process.
 */
export class Frustum {
    constructor(p0?: Plane, p1?: Plane, p2?: Plane, p3?: Plane, p4?: Plane, p5?: Plane);

    /**
     * Array of 6 vectors.
     */
    planes: Plane[];

    set(p0: Plane, p1: Plane, p2: Plane, p3: Plane, p4: Plane, p5: Plane): Frustum;
    clone(): this;
    copy(frustum: Frustum): this;
    setFromProjectionMatrix(m: Matrix4, coordinateSystem?: CoordinateSystem): this;
    intersectsObject(object: Object3D): boolean;
    intersectsSprite(sprite: Sprite): boolean;
    intersectsSphere(sphere: Sphere): boolean;
    intersectsBox(box: Box3): boolean;
    containsPoint(point: Vector3): boolean;
}