From d95c5c24da38c6276a304bcfc26efc92b6008bc7 Mon Sep 17 00:00:00 2001
From: ALEXTANG <574809918@qq.com>
Date: Mon, 8 Aug 2022 17:09:59 +0800
Subject: [PATCH] Entity Attach

Entity Attach
---
 .../TEngine/Runtime/Entity/Demo/ECSDemoApp.cs |  7 +++++-
 Assets/TEngine/Runtime/Entity/EntitySystem.cs | 22 +++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/Assets/TEngine/Runtime/Entity/Demo/ECSDemoApp.cs b/Assets/TEngine/Runtime/Entity/Demo/ECSDemoApp.cs
index ac20b85d..cd7c0203 100644
--- a/Assets/TEngine/Runtime/Entity/Demo/ECSDemoApp.cs
+++ b/Assets/TEngine/Runtime/Entity/Demo/ECSDemoApp.cs
@@ -1,4 +1,5 @@
-using TEngine.EntityModule;
+using System;
+using TEngine.EntityModule;
 using UnityEngine;
 
 namespace TEngine
@@ -33,6 +34,10 @@ namespace TEngine
 
             TimerMgr.Instance.AddTimer((args =>
             {
+                GameEventMgr.Instance.Send<int,Action<EcsObject>>(EntityEvent.AttachToEntity,entity.InstanceId,(obj)=>
+                {
+                    TLogger.LogInfoSuccessd("Attach Success"+obj.HashCode);
+                });
                 Entity.Destroy(entity);
                 Entity.Destroy(entity2);
             }), 3f,false);
diff --git a/Assets/TEngine/Runtime/Entity/EntitySystem.cs b/Assets/TEngine/Runtime/Entity/EntitySystem.cs
index fe2e7a27..127c60e9 100644
--- a/Assets/TEngine/Runtime/Entity/EntitySystem.cs
+++ b/Assets/TEngine/Runtime/Entity/EntitySystem.cs
@@ -26,6 +26,7 @@ namespace TEngine.EntityModule
         }
         private EntitySystem()
         {
+            GameEventMgr.Instance.AddEventListener<int,Action<EcsObject>>(EntityEvent.AttachToEntity, AttachToEntity);
             Update(true);
         }
         /// <summary>
@@ -189,5 +190,26 @@ namespace TEngine.EntityModule
         }
         #endregion
 
+        #region AttachEventToEntity
+
+        public void AttachToEntity(int instanceId,Action<EcsObject> callback)
+        {
+            if (EcsObjects.TryGetValue(instanceId,out var entity))
+            {
+                if (entity.IsDisposed)
+                {
+                    return;
+                }
+                callback?.Invoke(entity);
+            }
+        }
+        
+
+        #endregion
+    }
+
+    public static class EntityEvent
+    {
+        public static int AttachToEntity = StringId.StringToHash("EntityEvent.AttachToEntity");
     }
 }
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