Picking up items and make them not respawn on scene return.

Hi! Not sure if this is the right part of the forum, but..

I am very new to Unity, so apologies if this is a noob question.

I have a character that can pick up items in my game, and the items get removed and added to inventory and a list of picked up items , so that´s all great. But if I change the scene and come back to the first one, the items have respawned. And I can´t figure out how to make them stay removed. I have watched several tutorials on persistence and some other stuff, but can´t get it to work.

Basically what I want is something like this in my levelloader script:

start()
{
for (int i = 0; i < SaveManager.instance.activeSave.pickedUpItems.Count; i++ )
{
if (GameObject.Find(SaveManager.instance.activeSave.pickedUpItems.ToString()))
{
Destroy(gameObject);
}
}
}

No idea if this is the right way to do it, but seems like a it would be a simple way to do it? I just want to compare the objects in the scene (and later on if an enemy has been killed, so they don´t respawn) to my picked up items list and destroy them if they have been added to the list so they don´t spawn.

btw; When I add the items to my list I use: SaveManager.instance.activeSave.pickedUpItems.Add(Item.GetInstanceID());
so that it saves the instanceID of the object, but can´t figure out how to use that when removing it.

 

You could use a static bool to determine if the object is "pickedup". Probably something like this:

Code (CSharp):

1.                 for (int i = 0; i < SaveManager.instance.activeSave.pickedUpItems.Count; i++)
2.                 {
3.                     if (SaveManager.instance.activeSave.pickedUpItems[i].GetComponent<ITEMSCRIPT>().pickedUp == true)
4.                     {
5.                         Destroy(SaveManager.instance.activeSave.pickedUpItems[i].gameObject);
6.                     }
7.                 }

 

Hmm.. not sure if this will work, but:

for (int i = 0; i < SaveManager.instance.activeSave.pickedUpItems.Count; i++)
{
if (SaveManager.instance.activeSave.pickedUpItems.isPickedUp == true)
{
Debug.Log("item " .ToString());
GameObject objectToDestroy = GameObject.Find(SaveManager.instance.activeSave.pickedUpItems.name);
DestroyImmediate(objectToDestroy, true);
}
}

Problem is I´m getting a "IOException: Sharing violation on path" when I try to enter the scene again. Know I had this before a while back, but can´t remember how to solve it.