Pixel Crushers Forum

Posted: **Thu Feb 25, 2021 7:01 pm**

Hey there Toni,
I've been running into a slight issue regarding the Usable scripts OnUse event with prefabs and was wondering if you'd be able to help?

Right now I'm using the OnUse event to call a method with a passed gameobject that allows the player to hold the item.

: onuse-proper.png (17.81 KiB) Viewed 169 times

That gameobject works fine on its own, but whenever I instantiate a prefab of it into a scene it'll load without the reference to the player method and grabbed gameobject since it has no reference of the player in the main scene.

: onuse-empty.png (12.43 KiB) Viewed 169 times

I attempted to find a way to set the OnUse method and gameobject on the prefabs Start() method, but haven't been able to get it to work.

Any ideas?

Thanks!

Posted: **Thu Feb 25, 2021 10:03 pm**

Hi,

There are two ways you can handle it:

1. Add a script to the Usable prefab that has a method that finds the player at runtime. In the inspector, assign this method to the OnUse() event. Example:

Code: Select all

public void TogglePickupOnPlayer(GameObject item)
{
    var objectDragBehaviour = GameObject.FindWithTag("Player").GetComponent<ObjectDragBehaviour>();
    objectDragBehaviour.TogglePickup(item);
}

2. Or leave the OnUse() event unassigned, and assign it at runtime. Example:

Code: Select all

GetComponent<Usable>().events.OnUse.AddListener(() =>
{
    var objectDragBehaviour = GameObject.FindWithTag("Player").GetComponent<ObjectDragBehaviour>();
    objectDragBehaviour.TogglePickup(item);
});

Posted: **Thu Feb 25, 2021 11:25 pm**

You're the man Tony, appreciate the fast help and solid code samples.

Posted: **Thu Feb 25, 2021 11:34 pm**

Happy to help!

Pixel Crushers Forum

Setting Usable OnUse event method through script

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