import { vec2 } from "gl-matrix";
import RectCollider from "../physics/collider/rect";
/**
 * Represents a {@link Camera}'s viewable area and can be used to perform culling.
 */
export default class Viewport {
    private originalWidth;
    private originalHeight;
    private width;
    private height;
    private centre;
    /**
     * Creates a {@link Viewport} instance.
     *
     * @param centre The centre of the viewport in world space
     * @param width The width of the viewport in world space
     * @param height The height of the viewport in world space
     */
    constructor(centre: vec2, width: number, height: number);
    /**
     * Calculates the viewports bounds around a given centre.
     *
     * @param centre The centre of the viewport
     */
    update(centre: vec2): void;
    /**
     * Checks wether the provided rectangle collider is contained within the viewport.
     *
     * TODO: Change this to use physics collision system so it works with more than just RectCollider
     *
     * @param rect The rect to check
     * @returns Wether or not the box is withing the viewport
     */
    containsRectCollider(rect: RectCollider, worldToPixelScale: vec2): boolean;
    /**
     * Sets the viewport's width.
     *
     * @throws When width is <= 0
     *
     * @param width The viewport's new width
     */
    setWidth(width: number): void;
    /**
     * Gets the viewport's width.
     *
     * @returns The viewport's width
     */
    getWidth(): number;
    /**
     * Sets the viewport's height.
     *
     * @throws When height is <= 0
     *
     * @param height The viewport's new height
     */
    setHeight(height: number): void;
    /**
     * Gets the viewport's height.
     *
     * @returns The viewport's height
     */
    getHeight(): number;
    /**
     * Gets the width the viewport was given when constructed.
     *
     * @returns The viewport's original width
     */
    getOriginalWidth(): number;
    /**
     * Gets the height the viewport was given when constructed.
     *
     * @returns The viewport's original height
     */
    getOriginalHeight(): number;
}