Changing the "Point" notion to add a notion of "moving" in addition to the notion of direction.

Also, refactoring JOIN_ROOM event to add complete position.

back/src/Model/Websocket/MessageUserPosition.ts

@@ -1,7 +1,7 @@
 import {PointInterface} from "./PointInterface";
 
 export class Point implements PointInterface{
-    constructor(public x : number, public y : number, public direction : string = "none") {
+    constructor(public x : number, public y : number, public direction : string = "none", public moving : boolean = false) {
     }
 }