基础内容

必要插件安装
缓动曲线和动画基础
ElementFolder，Track与其次级模块，PathNode重构

Assets/Modern UI Pack/Scripts/Notification/NotificationStacking.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Michsky.MUIP
+{
+    [AddComponentMenu("Modern UI Pack/Notification/Notification Stacking")]
+    public class NotificationStacking : MonoBehaviour
+    {
+        [Header("Settings")]
+        public float delay = 1;
+
+        // Helpers
+        List<NotificationManager> notifications = new List<NotificationManager>();
+        int currentNotification = 0;
+        bool enableUpdating = false;
+
+        void Update()
+        {
+            if (notifications.Count == 0)
+                return;
+
+            if (enableUpdating && notifications[currentNotification] != null)
+            {
+                notifications[currentNotification].Open();
+
+                StopCoroutine("StartNotification");
+                StartCoroutine("StartNotification");
+
+                enableUpdating = false;
+            }
+        }
+
+        public void AddToStack(NotificationManager notif)
+        {
+            notifications.Add(notif);
+            notif.gameObject.SetActive(false);
+            enableUpdating = true;
+        }
+
+        IEnumerator StartNotification()
+        {
+            yield return new WaitForSecondsRealtime(notifications[currentNotification].timer + delay);
+           
+            Destroy(notifications[currentNotification].gameObject);
+
+            if (currentNotification == notifications.Count - 1)
+            {
+                notifications.Clear();
+                currentNotification = 0;
+            }
+
+            else
+            {
+                currentNotification += 1;
+                enableUpdating = true;
+            }
+        }
+    }
+}