import { Game } from "../Game" ; import { SceneNode , SceneNodeArgs } from "./SceneNode" ; import { clamp } from "../util" ; const DEFAULT_BACKGROUND_STYLE = "#111" ; const DEFAULT_BORDER_STYLE = "#222" ; const DEFAULT_PROGRESS_STYLE = "#888" ; const DEFAULT_WIDTH = 200 ; const DEFAULT_HEIGHT = 8 ; /**
 * Constructor arguments for [[ProgressBarNode]].
 */ export interface ProgressBarNodeArgs extends SceneNodeArgs { backgroundStyle ? : string ; borderStyle ? : string ; progressStyle ? : string ; } param T export class ProgressBarNode < T extends Game = Game > extends SceneNode < T > { private backgroundStyle : string ; private borderStyle : string ; private progressStyle : string ; private progress : number = 0 ; /**
     * Creates a new scene node displaying the given image.
     */ public constructor ( { backgroundStyle = DEFAULT_BACKGROUND_STYLE , borderStyle = DEFAULT_BORDER_STYLE , progressStyle = DEFAULT_PROGRESS_STYLE , ... args } = { } ) { super ( { width : DEFAULT_WIDTH , height : DEFAULT_HEIGHT , ... args } ) ; this . backgroundStyle = backgroundStyle ; this . borderStyle = borderStyle ; this . progressStyle = progressStyle ; } public setProgress ( progress ) { progress = clamp ( progress , 0 , 1 ) ; if ( progress !== this . progress ) { this . progress = progress ; this . invalidate ( ) ; } return this ; } public getProgress ( ) { return this . progress ; } inheritDoc public draw ( ctx ) { ctx . save ( ) ; const width = this . getWidth ( ) ; const height = this . getHeight ( ) ; ctx . fillStyle = this . backgroundStyle ; ctx . fillRect ( 0 , 0 , width , height ) ; ctx . fillStyle = this . progressStyle ; ctx . fillRect ( 0 , 0 , width * this . progress , height ) ; ctx . save ( ) ; ctx . strokeStyle = this . borderStyle ; ctx . lineWidth = 2 ; ctx . rect ( 0 , 0 , width , height ) ; ctx . clip ( ) ; ctx . stroke ( ) ; ctx . restore ( ) ; ctx . restore ( ) ; } }