fix: game: 2d work

frontend/static/js/api/game/pong/PongBall.js

@@ -2,6 +2,7 @@ import { AExchangeable } from "../../AExchangable.js";
 import { PongGame } from "./PongGame.js";
 import { renderCube} from "../../../3D/cube.js"
 import { Position } from "./Position.js";
+import { Point } from "./Point.js";
 
 export class PongBall extends AExchangeable
 {
@@ -13,7 +14,7 @@ export class PongBall extends AExchangeable
      * @param {Number} speed
      * @param {Number} size
      */
-    constructor(game, size, position = new Position(), angle, speed)
+    constructor(game, size, position = new Position(new Point(game.config.CENTER_X, game.config.CENTER_Y), 0), angle, speed)
     {
         super();