ヒエラルキーから選択したオブジェクトを消す

HideObjectManager.cs

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class HideObjectManager : MonoBehaviour
{
#if UNITY_EDITOR

	public List<GameObject> hideObjectList = new List<GameObject> ();


	static HideObjectManager GetInstance ()
	{
		var item = FindObjectOfType<HideObjectManager> ();

		if (item == null) {
			item = new GameObject ("HideObjectManager").AddComponent<HideObjectManager> ();
			item.gameObject.tag = "EditorOnly";
			item.gameObject.hideFlags |= HideFlags.HideInHierarchy;
			item.gameObject.SetActive (!item.gameObject.activeSelf);
			item.gameObject.SetActive (!item.gameObject.activeSelf);

		}
		return item;
	}
	[UnityEditor.MenuItem("GameObject/HideObject/Hide")]
	static void Hide ()
	{
		var activeObjects = UnityEditor.Selection.gameObjects;
		var hideObject = GetInstance ();

		foreach( var item in activeObjects )
		{
			HideAllChild(item , hideObject);
		}
	}

	static void HideAllChild (GameObject item, HideObjectManager hideObject)
	{
		item.hideFlags |= HideFlags.HideInHierarchy;
		hideObject.hideObjectList.Add (item);
		item.gameObject.SetActive (!item.gameObject.activeSelf);
		item.gameObject.SetActive (!item.gameObject.activeSelf);
			
		for (int i=0; i < item.transform.childCount; i++) {
			var subItem = item.transform.GetChild (i).gameObject;
			HideAllChild(subItem, hideObject);
		}
	}

	[UnityEditor.MenuItem("GameObject/HideObject/Show")]
	static void Show ()
	{
		var hideObject = GetInstance ();

		foreach (var item in hideObject.hideObjectList) {
			item.hideFlags &= ~HideFlags.HideInHierarchy;
			item.gameObject.SetActive (!item.gameObject.activeSelf);
			item.gameObject.SetActive (!item.gameObject.activeSelf);
		}
		hideObject.hideObjectList.Clear ();
		UnityEditor.EditorApplication.RepaintHierarchyWindow ();
	}
#endif
}