import {Message} from "./Message"; import {PointInterface} from "./PointInterface"; export class Point implements PointInterface{ x: number; y: number; constructor(x : number, y : number) { this.x = x; this.y = y; } toJson(){ return { x : this.x, y: this.y } } } export class MessageUserPosition extends Message{ position: PointInterface constructor(message: string) { super(message); let data = JSON.parse(message); this.position = new Point(data.position.x, data.position.y); } toString() { return JSON.stringify( Object.assign( super.toJson(), { position: this.position.toJson() }) ); } }