koobas.hobune.stream
Problem when I call fonction with child class
Hello, i'm french but i think find more answers in this forum. Sorry if my english is bad. I try to call a parent fonction when an evenement "on trigger enterer" is coming in a child class. Child class :
public class PickUp : MonoBehaviour {
public Item item;
Inventory inventoryScript;
void OnTriggerEnter(Collider other)
{
inventoryScript.AddItem(item);
}
}
And my parent class :
public class Inventory : MonoBehaviour {
public const int nbSlots = 30;
public Item[] items = new Item[nbSlots];
public GameObject A1;
public void AddItem(Item itemToAdd)
{
for (int i = 0; i < items.Length; i++)
{
if (items[i] == null)
{
items[i] = itemToAdd;
A1.GetComponent<Image>().sprite = itemToAdd.sprite;
return;
}
}
}
}
My error appear in "PickUp" script at line 13 : inventoryScript.AddItem(item);
thank you in advance
If your pasted scripts are all there is to your scripts, then this is because your Pickup script has no reference to the inventory script. it just has a variable that can hold a reference to one. You should either give that Inventory variable a [SerializeField] attribute, and link it in the inspector, or do something like this.
void OnTriggerEnter(Collider other)
{
if(inventoryScript == null)
{
// NOTE: this may need to change It was not clear to me from your initial post what the hierarchy was like
// so your Inventory component may not be directly on this items parent. This is just an example.
inventoryScript = transform.parent.GetComponent<Inventory>();
}
if(inventoryScript == null)
{
Debug.LogError("Failed to find Inventory component on parent");
}
else
{
inventoryScript.AddItem(item);
}
}
