While you can reveal UnityEvent type properties just like any other, you can also decide to reveal them as a button, very much like you can do with methods.
However, revealing a UnityEvent as a button allows you to specify one argument for each method invoked, and to invoke multiple methods at once (which is exactly what UnityEvent supports), making it a much more powerful tool.
Revealing a UnityEvent as a button
If a UnityEvent property is revealed, by default it will just show with its regular UI:
A revealed UnityEvent
To display it as a button, the property needs to be decorated with a [RevealEventAsButton] attribute, like this:
Once the code compiles, the UnityEvent will now show up as a button:
The same UnityEvent now displayed as a button
If the UnityEvent has no callbacks setup, the button will show up as disabled.
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[RevealEventAsAttribute] public UnityEvent _certainConditionEvent;
