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Assets/FPS/Scripts/UI/DisplayMessageManager.cs

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+using System.Collections.Generic;
+using Unity.FPS.Game;
+using UnityEngine;
+
+namespace Unity.FPS.UI
+{
+    public class DisplayMessageManager : MonoBehaviour
+    {
+        public UITable DisplayMessageRect;
+        public NotificationToast MessagePrefab;
+
+        List<(float timestamp, float delay, string message, NotificationToast notification)> m_PendingMessages;
+
+        void Awake()
+        {
+            EventManager.AddListener<DisplayMessageEvent>(OnDisplayMessageEvent);
+            m_PendingMessages = new List<(float, float, string, NotificationToast)>();
+        }
+
+        void OnDisplayMessageEvent(DisplayMessageEvent evt)
+        {
+            NotificationToast notification = Instantiate(MessagePrefab, DisplayMessageRect.transform).GetComponent<NotificationToast>();
+            m_PendingMessages.Add((Time.time, evt.DelayBeforeDisplay, evt.Message, notification));
+        }
+
+        void Update()
+        {
+            foreach (var message in m_PendingMessages)
+            {
+                if (Time.time - message.timestamp > message.delay)
+                {
+                    message.Item4.Initialize(message.message);
+                    DisplayMessage(message.notification);
+                }
+            }
+
+            // Clear deprecated messages
+            m_PendingMessages.RemoveAll(x => x.notification.Initialized);
+        }
+
+        void DisplayMessage(NotificationToast notification)
+        {
+            DisplayMessageRect.UpdateTable(notification.gameObject);
+            //StartCoroutine(MessagePrefab.ReturnWithDelay(notification.gameObject, notification.TotalRunTime));
+        }
+
+        void OnDestroy()
+        {
+            EventManager.RemoveListener<DisplayMessageEvent>(OnDisplayMessageEvent);
+        }
+    }
+}