Main Menu with loading screen

Assets/Scripts/TweenHelper.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+
+public class TweenHelper : MonoBehaviour
+{
+    // Start is called before the first frame update
+    public float delay = 1;
+    public LeanTweenType position_type, scale_type;
+    public Vector3 startPos;
+    public float position_time=1;
+    public float scale_time=1;
+    public Vector3 startScale;
+
+     Vector3 defaultPos, defaultScale;
+
+    [Header("Monitor data")]
+    public Vector3 curPosition;
+    public Vector3 curScale;
+
+    void Awake(){
+        defaultPos = transform.position;
+        defaultScale=transform.localScale;
+
+
+        if(position_type != LeanTweenType.notUsed){ transform.position = startPos;}
+        transform.localScale = startScale;
+
+    }
+    void Start()
+    {
+        Intro();
+    }
+
+    public void Intro(){
+
+        TweenManager.Add(this);
+        StartCoroutine(start());
+    }
+
+    public void Outro(){
+        if(position_type != LeanTweenType.notUsed){
+            LeanTween.move(gameObject, startPos, position_time).setEase(position_type);
+        }
+
+        if(scale_type != LeanTweenType.notUsed){
+            LeanTween.scale(gameObject, startScale, scale_time).setEase(scale_type);
+        }
+    }
+
+    IEnumerator start(){
+        yield return new WaitForSeconds(delay);
+        
+        LeanTween.move(gameObject, defaultPos, position_time).setEase(position_type);
+        LeanTween.scale(gameObject, defaultScale, scale_time).setEase(scale_type);
+    }
+
+
+    void OnDrawGizmos(){
+        if(position_type == LeanTweenType.notUsed){return;}
+
+        curPosition = transform.position;
+        curScale = transform.localScale;
+        Gizmos.DrawLine(startPos, curPosition);
+    }
+    bool init = false;
+    void OnValidation(){
+        if(!init){
+            init=true;
+        }else{
+            return;
+        }
+        startPos = transform.position;
+        startScale = transform.localScale;
+    }
+
+
+    public void OutroAll(){
+        TweenManager.OutroAll();
+    }
+
+}
+
+
+public static class TweenManager{
+    public static List<TweenHelper> Tweens{get; private set;}
+
+    public static void Add(TweenHelper tween){
+        if(Tweens == null){Tweens = new List<TweenHelper>();}
+        if(Tweens.Contains(tween)){return;}
+        Tweens.Add(tween);
+    }
+
+    public static void Outro(TweenHelper tween){
+        tween.Outro();
+        Tweens.Remove(tween);
+
+    }
+
+    public static void OutroAll(){
+        foreach(TweenHelper tween in Tweens){
+            if(tween == null){continue;}
+            tween.Outro();
+        }
+
+        for(int i=Tweens.Count-1; i >= 0; i--){
+            Tweens.RemoveAt(i);
+        }
+    }
+}