ScenePartition/Editor/ScenePartitionMenuEditor.cs

using UnityEditor;
using UnityEngine;

namespace VertexColor.ScenePartition.Editor
{
    public static class ScenePartitionMenuEditor
    {
        [MenuItem("GameObject/ScenePartition/CopyObjectId", false, 10000)]
        public static void CopyObjectId(MenuCommand menuCommand)
        {
            // Get context from menu command instead of selection because the menu command is executed for each selected object when executed from the hierarchy.
            if (menuCommand.context is not GameObject go) return;
            if (go == null) return;
            if (go.scene == null) return;

            ulong id = ScenePartitionUtils.GetTargetObjectId(go);

            EditorGUIUtility.systemCopyBuffer = id.ToString();
            Debug.Log($"Copied object id '{id}' from '{go}' to clipboard");
        }

        [MenuItem("GameObject/ScenePartition/AddToAlwaysLoad", false, 10000)]
        public static void AddToAlwaysLoad(MenuCommand menuCommand)
        {
            // Get context from menu command instead of selection because the menu command is executed for each selected object when executed from the hierarchy.
            if (menuCommand.context is not GameObject go) return;
            if (go == null) return;
            if (go.scene == null) return;
            if (!ScenePartitionUtils.TryGetScenePartitionSOForActiveScene(out var scenePartitionSO)) return;

            ulong id = ScenePartitionUtils.GetTargetObjectId(go);

            if (scenePartitionSO.alwaysLoadIds.Contains(id)) return;

            scenePartitionSO.alwaysLoadIds.Add(id);
            Debug.Log($"Added '{go}' ({id}) to '{scenePartitionSO.name}' ({scenePartitionSO.SceneName})");
        }

        [MenuItem("GameObject/ScenePartition/RemoveFromAlwaysLoad", false, 10000)]
        public static void RemoveFromAlwaysLoad(MenuCommand menuCommand)
        {
            // Get context from menu command instead of selection because the menu command is executed for each selected object when executed from the hierarchy.
            if (menuCommand.context is not GameObject go) return;
            if (go == null) return;
            if (go.scene == null) return;
            if (!ScenePartitionUtils.TryGetScenePartitionSOForActiveScene(out var scenePartitionSO)) return;

            ulong id = ScenePartitionUtils.GetTargetObjectId(go);

            scenePartitionSO.alwaysLoadIds.Remove(id);
            Debug.Log($"Removed '{go}' ({id}) from '{scenePartitionSO.name}' ({scenePartitionSO.SceneName})");
        }
    }
}