Scriptable object asset not saving

Unity Engine
1

Hi. I created a method to save objects that inherit from ScriptableObject. It’s creating the new asset just fine but its not saving the inherited data when the asset is created. I know I’m just not understanding something crucial here.

	public static void CreateAssetAtPath<T> (string path, string AssetName,T asset) where T : ScriptableObject
	{
		//T asset = ScriptableObject.CreateInstance<T>();

		path = "Assets" + "/" + path;
		string assetPathAndName = AssetDatabase.GenerateUniqueAssetPath(path + "/" + typeof(T).ToString() + "-" + AssetName + ".asset");

		AssetDatabase.CreateAsset(asset,assetPathAndName);
		AssetDatabase.SaveAssets();
	}

and here is the asset I’m trying to save after its filled out by another script.

[System.Serializable]
public class SwipeSession : ScriptableObject {

	public string name = "";
	public List<Vector3[]> levels = new List<Vector3[]>();
}
2 
// Serializable attribute is not required, as ScriptableObject is already flagged.
    public class SwipeSession : ScriptableObject 
    {
        // name is a field of UnityEngine.Object. You should probably flag it "new" or ignore it.
        // UnityEngine.Object name field also is special as it automatically take the file's name, but won't change the file's name if modified.
        //public string name = "";
        public List<Vector3[]> levels = new List<Vector3[]>();
    }

Beside that, you’re not showing us how you create the asset (ScriptableObject.CreateInstance) and how you fill its data because saving it.

3

thanks lightStriker.

I renamed the name field to session name. The name is being saved correctly now (I can see it).

I’m declaring the swipeSession like this.

SwipeSession session = ScriptableObject.CreateInstance<SwipeSession>();
session.sessionName = testString;

Code that I’m using to fill in the data is below.

	private void saveAndWriteSession()
	{
		saveLevel();

		CustomAssetUtility.CreateAssetAtPath("SwipeSessions",session.sessionName,session);
	}

	private void saveLevel()
	{

		Vector3[] lvlData = new Vector3[record.Count];

		for(int i = 0; i < lvlData.Length;i++)
			lvlData[i] = findTriangleCenter(record.Pop());

		session.levels.Add(lvlData);
		clear();
	}

I’m using this to test it

public class CustomAssetTester : MonoBehaviour {

	public SwipeSession session;
	// Use this for initialization
	void Start () 
	{
		Debug.Log(session.sessionName);
		Debug.Log("Session Levels:" + session.levels.Count);
	}
}

Session name is being outputted correctly but Session levels is giving me zero. Not sure how one can work but not the other.

4

What “clear()” does?

5

clear() just clears my stacks. like record.

But I found the problem. This way of saving data will ONLY save the data if you can see it through unity’s inspector. I tried saving a single Vector[ ] and that worked but the moment i turned it into a Vector[ ][ ] it broke.

So I need a new way to save and load this data…

6

Yeah, Unity doesn’t support nested list of any kind. ANY kind… I tried them all.

What you’ll have to do, is a wrapper class around a list… And a list of that wrapper.

[Serializable]
public class Wrapper
{
    public List<Vector3> list;
}

public class Container : ScriptableObject
{
    public List<Wrapper> list;
}

Not as clean as nested list, but sadly the only way.

7

woah…ok well that’ll work. What a work around…lol. Thanks for the help LightStriker.