using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine.SceneManagement;
public static class TransformSaver
{
[System.Serializable]
public class TransformInfo
{
public string sceneName;
public string name;
public Transform parent;
public Vector3 pos;
public Quaternion rot;
public Vector3 scale;
}
//Save Transform
public static void SaveTransform(Transform[] tranformToSave)
{
TransformInfo[] trnfrm = new TransformInfo[tranformToSave.Length];
for (int i = 0; i < trnfrm.Length; i++)
{
trnfrm[i] = new TransformInfo();
trnfrm[i].sceneName = tranformToSave[i].gameObject.scene.name;
trnfrm[i].name = tranformToSave[i].name;
trnfrm[i].parent = tranformToSave[i].parent;
trnfrm[i].pos = tranformToSave[i].localPosition;
trnfrm[i].rot = tranformToSave[i].localRotation;
trnfrm[i].scale = tranformToSave[i].localScale;
}
string jsonTransform = JsonHelper.ToJson(trnfrm, true);
File.WriteAllText(@"d:\json\json.txt", jsonTransform);
}
//Load Transform
public static Transform[] LoadTransform()
{
string jsonTransform = File.ReadAllText(@"d:\json\json.txt");
if (jsonTransform == null)
{
return null;
}
TransformInfo[] savedTransforms = JsonHelper.FromJson<TransformInfo>(jsonTransform);
GameObject[] gameObjects = new GameObject[savedTransforms.Length];
Transform[] loadedTransforms = new Transform[savedTransforms.Length];
for (int i = 0; i < gameObjects.Length; i++)
{
SceneManager.SetActiveScene(SceneManager.GetSceneByName(savedTransforms[i].sceneName));
gameObjects[i] = new GameObject();
loadedTransforms[i] = gameObjects[i].transform;
loadedTransforms[i].name = savedTransforms[i].name;
loadedTransforms[i].parent = savedTransforms[i].parent;
loadedTransforms[i].localPosition = savedTransforms[i].pos;
loadedTransforms[i].localRotation = savedTransforms[i].rot;
loadedTransforms[i].localScale = savedTransforms[i].scale;
}
return loadedTransforms;
}
}
问题在于方法LoadTransform将返回Transforms数组，但还将在层次结构的编辑器中创建新的GameObject。
我想做的是添加一个布尔标志或其他方式，这样我可以选择是否返回创建或不创建新游戏对象的变换数组，所以我尝试了类似的方法：
//Load Transform
public static Transform[] LoadTransform(bool returnInfo)
{
string jsonTransform = File.ReadAllText(@"d:\json\json.txt");
if (jsonTransform == null)
{
return null;
}
TransformInfo[] savedTransforms = JsonHelper.FromJson<TransformInfo>(jsonTransform);
GameObject[] gameObjects = new GameObject[savedTransforms.Length];
Transform[] loadedTransforms = new Transform[savedTransforms.Length];
for (int i = 0; i < gameObjects.Length; i++)
{
SceneManager.SetActiveScene(SceneManager.GetSceneByName(savedTransforms[i].sceneName));
if (returnInfo == true)
{
gameObjects[i] = new GameObject();
loadedTransforms[i] = gameObjects[i].transform;
}
loadedTransforms[i].name = savedTransforms[i].name;
loadedTransforms[i].parent = savedTransforms[i].parent;
loadedTransforms[i].localPosition = savedTransforms[i].pos;
loadedTransforms[i].localRotation = savedTransforms[i].rot;
loadedTransforms[i].localScale = savedTransforms[i].scale;
}
return loadedTransforms;
}
我添加了一个布尔标志returnInfo，但现在loadTransforms为null。
但是主要目标是决定是否通过创建新游戏对象实例来返回转换数组。
问题是当我使用Editorwindow类型的脚本并在OnGUI中保存和加载对象时
List<GameObject> selections = Selection.objects.OfType<GameObject>().ToList();
if (selections.Count > 0)
{
GUI.enabled = true;
}
else
{
GUI.enabled = false;
}
if (GUILayout.Button("Save selected objects data"))
{
if (selections.Count > 0)
{
tempTransformSelection = selections;
for (var i = selections.Count - 1; i >= 0; --i)
{
var selected = selections[i];
transformSelection.Add(selected.transform);
}
TransformSaver.SaveTransform(transformSelection.ToArray());
transformSelection = new List<Transform>();
}
}
var file = @"d:\json\json.txt";
FileInfo fi = new FileInfo(file);
// By default asume you don't want to show the button
// it will than only be enabled if the later conditions match
bool showButton = false;
// you can check this already here not in the loop
// if no file -> nothing to do
if (!File.Exists(@"d:\json\json.txt") || fi.Length <= 0) return;
// This is only reached if the file exists and is not empty
// check for null transforms
for (int i = 0; i < tempTransformSelection.Count(); i++)
{
// if not null do nothing
if (tempTransformSelection[i] != null)
continue;
// otherwise enable the button and leave the loop
showButton = true;
break;
}
// if not true then button won't be shown
if (showButton == true)
{
GUI.enabled = true;
}
else
{
GUI.enabled = false;
}
if (GUILayout.Button("Instantiate back deleted selected bojects"))
{
TransformSaver.LoadTransform(true);
showButton = false;
}
}
private void OnInspectorUpdate()
{
Repaint();
}
主要目标是在编辑器的层次结构中选择对象。然后单击“保存选定的对象数据”将选定的对象保存到json文件。
然后，仅当删除了已保存文件中的一个或多个对象时，我才想使该文件中的一个已保存对象在层次结构中为空！然后启用true按钮“实例化已删除的所选对象”
然后单击按钮“实例化回删除的选定对象”，然后将按钮设置回启用false！
但是重要的是要对照json文件中保存的对象列表检查null！但是我再次被tempTransformSelection以及如何启用false / true按钮所困扰。