Reworked code, Code cleanup, No new Version

Assets/Scripts/Handler/SceneHandler.cs

@@ -0,0 +1,59 @@
+using Assets.Scripts.Races;
+using Assets.Scripts.Classes;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+namespace Assets.Scripts
+{
+    public class SceneHandler : MonoBehaviour
+    {
+        static bool sceneSwitched = false;
+        private void OnEnable()
+        {
+            SceneManager.sceneLoaded += OnSceneLoaded;
+            bool hasSceneHandler = false;
+            foreach (Object o in FindObjectsOfType(typeof(MonoBehaviour)))
+            {
+                if (o.name == "SceneHandlerLoaded")
+                {
+                    hasSceneHandler = true;
+                    break;
+                }
+            }
+            if (!hasSceneHandler)
+            {
+                DontDestroyOnLoad(this.gameObject);
+                this.gameObject.name = "SceneHandlerLoaded";
+            }
+        }
+
+        public void openMenuScene()
+        {
+            SceneManager.LoadSceneAsync("MenuScene", LoadSceneMode.Single);
+        }
+
+        public void openGameScene()
+        {
+            SceneManager.LoadSceneAsync("GameScene", LoadSceneMode.Single);
+        }
+
+        public static void switchGameToMenu()
+        {
+            if (!sceneSwitched)
+            {
+                SceneManager.LoadSceneAsync("MenuScene", LoadSceneMode.Single);
+                sceneSwitched = true;
+            }
+        }
+
+        private void OnSceneLoaded(Scene scene, LoadSceneMode mode)
+        {
+            if (scene.name == "GameScene")
+            {
+                GameObject.Find("UIHandler").GetComponent<UIHandler>().openIntroduction();
+            }
+        }
+    }
+}