Important

Enable SaintsEditor before using

This is a method decorator, which will bind this method to the target UnityEvent (allows generic type) invoke event.

Parameters:

• string eventTarget the target UnityEvent. If you have dot in it, it will first find the field (or property/function), then find the target event on the found field using the name after the dot(s) recursively.
• object value=null the value passed to the method. Note unity only support bool, int, float, string and UnityEngine.Object. To pass a UnityEngine.Object, use a string name of the target, and set the isCallback parameter to true
• bool isCallback=false: when value is a string, set this to true to obtain the actual value from a method/property/field

Example:

public UnityEvent<int, int> intIntEvent;

[OnEvent(nameof(intIntEvent))]
public void OnInt2(int int1, int int2)  // dynamic parameter binding
{
}

[OnEvent(nameof(intIntEvent), value: 1)]
public void OnInt1(int int1)  // static parameter binding
{
}

Example of using dot(s):

// CustomEventChild.cs
public class CustomEventChild : MonoBehaviour
{
    [field: SerializeField] private UnityEvent<int> _intEvent;
}

// CustomEventExample.cs
public class CustomEventExample : MonoBehaviour
{
    // it will find the `_intEvent` on the `_child` field
    [OnEvent(nameof(_child) + "._intEvent")]
    public void OnChildInt(int int1)
    {
    }
    
    [Expandable]
    public CustomEventChild _child;
}