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Unity/Scripts/UX/BlackScreen/BlackScreen.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UIElements;
+using DG.Tweening;
+using UnityEngine.Events;
+using Cysharp.Threading.Tasks;
+namespace BITKit.UX
+{
+    public class BlackScreen : MonoBehaviour
+    {
+        [Header(Constant.Header.Components)]
+        public UIDocument document;
+        VisualElement root;
+        void Start()
+        {
+            root = document.rootVisualElement;
+            Data.AddListener<UnityAction>("BlackScreen", x =>
+            {
+                CrossFade(x, 0.32f);
+            });
+            root.SetOpacity(1);
+            root.SetActive(false);
+        }
+        void CrossFade(UnityAction action, float duration = 1f)
+        {
+            Sequence sequence = DOTween.Sequence();
+            var enterTween = DOTween.To(root.GetOpacity, root.SetOpacity, 1, duration);
+            var exitTween = DOTween.To(root.GetOpacity, root.SetOpacity, 0, duration);
+
+            sequence.Append(enterTween);
+            sequence.AppendInterval(0.1f);
+            sequence.Append(exitTween);
+
+            enterTween.onComplete += () =>
+            {
+                action.Invoke();
+            };
+            sequence.onComplete += () =>
+            {
+                root.SetActive(false);
+            };
+
+            root.SetActive(true);
+            root.SetOpacity(0);
+
+            sequence.Play();
+        }
+    }
+}