import type { Mutable } from "@goldenratio/core-utils";
import type { Point, Rectangle } from "./types/types.js";
/**
 * Tells if 2 Rectangles are colliding
 */
export declare function is_rect_colliding(target1: Rectangle, target2: Rectangle): boolean;
/**
 * Tells if Rectangle contains point (Point is inside rectangle)
 * @returns boolean
 */
export declare function rect_contains_point(rect: Rectangle, point: Point): boolean;
/**
 * Find angle between 2 points
 * @returns value in radians
 */
export declare function angle_between_two_points(p1: Point, p2: Point): number;
/**
 * Creates a vector (Point) from an angle and radius.
 */
export declare function vec_from_angle(radians: number, radius?: number): Point;
/**
 * Distance between 2 points
 */
export declare function distance_between_two_points(p1: Point, p2: Point): number;
/**
 * Distance between 2 points
 * Less accurate, but faster
 */
export declare function distance_square(p1: Point, p2: Point): number;
/**
 * Copies Rectangle from src to dest
 */
export declare function copy_rect(dest: Partial<Mutable<Rectangle>>, src: Partial<Rectangle>): void;
/**
 * Copies Point from src to dest
 */
export declare function copy_point(dest: Partial<Mutable<Point>>, src: Partial<Point>): void;
/**
 * Rotates a point by a given angle.
 * @param px
 * @param py
 * @param angle_radians The angle to rotate by in radians
 * @returns a new Point
 */
export declare function rotate_point(px: number, py: number, angle_radians: number): Point;