rewrote the login workflow

front/src/Phaser/Game/GameManager.ts

@@ -1,9 +1,10 @@
 import {GameScene} from "./GameScene";
 import {
     StartMapInterface
-} from "../../Connection";
+} from "../../Connexion/ConnexionModels";
 import Axios from "axios";
 import {API_URL} from "../../Enum/EnvironmentVariable";
+import {adminDataFetchPromise} from "../../register";
 
 export interface HasMovedEvent {
     direction: string;
@@ -29,13 +30,23 @@ export class GameManager {
     }
 
     loadStartMap() : Promise<StartMapInterface> {
-        return Axios.get(`${API_URL}/start-map`)
-            .then((res) => {
-                return res.data;
-            }).catch((err) => {
-                console.error(err);
-                throw err;
-            });
+        if (adminDataFetchPromise) {
+            return adminDataFetchPromise.then(data => {
+                return {
+                    mapUrlStart: data.mapUrlStart,
+                    startInstance: data.startInstance,
+                }
+            })
+        } else {
+            //todo: remove this call, merge with the admin workflow?
+            return Axios.get(`${API_URL}/start-map`)
+                .then((res) => {
+                    return res.data;
+                }).catch((err) => {
+                    console.error(err);
+                    throw err;
+                });
+        }
     }
 
     getPlayerName(): string {