/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2018 Photon Storm Ltd.
 * @license      {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
 */
declare var Class: any;
declare var EventEmitter: any;
declare var GetValue: any;
declare var InputPluginCache: any;
declare var Key: any;
declare var KeyCodes: any;
declare var KeyCombo: any;
declare var KeyMap: any;
declare var ProcessKeyDown: any;
declare var ProcessKeyUp: any;
declare var SnapFloor: any;
/**
 * @classdesc
 * The Keyboard Plugin is an input plugin that belongs to the Scene-owned Input system.
 *
 * Its role is to listen for native DOM Keyboard Events and then process them.
 *
 * You do not need to create this class directly, the Input system will create an instance of it automatically.
 *
 * You can access it from within a Scene using `this.input.keyboard`. For example, you can do:
 *
 * ```javascript
 * this.input.keyboard.on('keydown', callback, context);
 * ```
 *
 * Or, to listen for a specific key:
 *
 * ```javascript
 * this.input.keyboard.on('keydown_A', callback, context);
 * ```
 *
 * You can also create Key objects, which you can then poll in your game loop:
 *
 * ```javascript
 * var spaceBar = this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.SPACE);
 * ```
 *
 * _Note_: Many keyboards are unable to process certain combinations of keys due to hardware limitations known as ghosting.
 * See http://www.html5gamedevs.com/topic/4876-impossible-to-use-more-than-2-keyboard-input-buttons-at-the-same-time/ for more details.
 *
 * Also please be aware that certain browser extensions can disable or override Phaser keyboard handling.
 * For example the Chrome extension vimium is known to disable Phaser from using the D key, while EverNote disables the backtick key.
 * And there are others. So, please check your extensions before opening Phaser issues about keys that don't work.
 *
 * @class KeyboardPlugin
 * @extends Phaser.Events.EventEmitter
 * @memberOf Phaser.Input.Keyboard
 * @constructor
 * @since 3.10.0
 *
 * @param {Phaser.Input.InputPlugin} sceneInputPlugin - A reference to the Scene Input Plugin that the KeyboardPlugin belongs to.
 */
declare var KeyboardPlugin: any;