referencing a gameObject from a c# interface event in Unity

Question

I have an event manager in Unity which can handle events sent from scene components. The classes are all a bit abstracted from the standard Unity components. I am successfully able to fire an event from a button, and have that button's parent listen to the event (the onEventReceived you see below).

Using the Unity Debugger extension for VSCode, I can log the sender. If I type sender.gameObject and it returns a correct reference to the GameObject the sender is attached to. However, I cannot reference sender.gameObject within the OnEventReceived function itself - because it is of type ISceneComponent I suppose. How do I get a reference to the game object of the clicked sender?

What is the definition of ISceneComponent? I guess it doesnt have a gameObject-field? You could add a getGameObject() method on the interface and use that? Is there any case where sender is not a gameobject? — Fredrik Widerberg
– Fredrik Widerberg, Commented Aug 15, 2018 at 21:02

Immorality · Accepted Answer · 2018-08-16 07:43:40Z

2

I have run into your issue myself before.

The fix is quite simple.

Assuming that you created the interface ISceneComponent, add the gameObject field to your Interface

public interface ISceneComponent
{
    GameObject gameObject { get; set; }
    // ...
}

If the object implementing ISceneComponent also is a monobehaviour, gameObject will automatically be filled and you can reference it easily.

answered Aug 16, 2018 at 7:43

Immorality

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