Add XML doc

Author: EmandM

com.unity.netcode.gameobjects/Editor/InScenePlacedPrefab.cs

@@ -0,0 +1,45 @@
+using UnityEditor;
+using UnityEditor.Build;
+using UnityEditor.Build.Reporting;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+namespace Unity.Netcode.Editor
+{
+    /// <summary>
+    /// A <see cref="IProcessSceneWithReport"/> that sets the <see cref
+    /// "NetworkObject.InScenePlaced"/> property to true for all <see cref="NetworkObject"/>s in the scene.
+    /// Ensures that InScenePlaced is always true for all objects in the scene.
+    /// </summary>
+    /// <remarks>
+    /// This will always run as the game enters the scene,
+    /// </remarks>
+    internal class SetInScenePlaced : IProcessSceneWithReport
+    {
+        public int callbackOrder => 0;
+        public void OnProcessScene(Scene scene, BuildReport report)
+        {
+            foreach (var networkObject in FindObjects.FromSceneByType<NetworkObject>(scene, true))
+            {
+                networkObject.InScenePlaced = true;
+            }
+        }
+    }
+
+    /// <summary>
+    /// An <see cref="AssetPostprocessor"/> that sets the <see cref="NetworkObject.InScenePlaced"/> property to false for all <see cref="NetworkObject"/>s in prefabs.
+    /// Ensures that InScenePlaced is always false for all prefab objects.
+    /// This is important because when a prefab is instantiated in the scene, it should be treated as a dynamically spawned object.
+    /// </summary>
+    internal class InScenePlacedPrefabBuilder : AssetPostprocessor
+    {
+        public void OnPostprocessPrefab(GameObject root)
+        {
+            var networkObjects = root.GetComponentsInChildren<NetworkObject>(true);
+            foreach (var networkObject in networkObjects)
+            {
+                networkObject.InScenePlaced = false;
+            }
+        }
+    }
+}

com.unity.netcode.gameobjects/Editor/InScenePlacedPrefab.cs.meta

@@ -1235,6 +1235,9 @@ private bool InternalHasAuthority()
         [Obsolete("Use InScenePlaced instead")]
         public bool? IsSceneObject { get; internal set; }
 
+        /// <summary>
+        /// True if this object is placed in a scene; false otherwise.
+        /// </summary>
         [field: HideInInspector]
         [field: SerializeField]
         public bool InScenePlaced { get; internal set; }