replace instance method after instance is created.

[senateboy]

I’m writing a Component Class “A” with a function such as “A.OnComplete()”, I’m writing another Component Class “B” that will Replace “A.OnComplete” with one of B’s functions. I can’t get it to work.

A sample would be great. keeping in mind, That B is NOT a subClass of A, So Virtual functions don’t seem to work here. And that A and B are separate Script Components.

I’m working in Javascript(UnityScript)
Thanks for your help in advance!

[KellyThomas]

After some experimentation @senateboy and I found that UnityScript offers limited monkey patching support via assigning functions to:

• untyped variables
• variable of type Function

If running the example below please use the inspector to drop an instance of Script1 into the otherScript slot for Script2:

–Script1.js–

#pragma strict

var functionSlot: Function = Function1;;

function Function1() {
	Debug.Log("Function1");
}

function Update () {
	if (Input.GetKeyDown(KeyCode.Alpha1)) {
		functionSlot = Function1;
	}
	functionSlot();
}

–Script2.js–

#pragma strict

var otherScript: Script1;

function Function2() {
	Debug.Log("Function2");
}

function Update () {
	if (Input.GetKeyDown(KeyCode.Alpha2)) {
		otherScript.functionSlot = Function2;
	}
}

[senateboy]

This is cool. Im developing for iOS so from what i know, i need “pragma strict”. But i took your idea, and with pragma Strict, just…

var functionSlot : Function;

And it worked – Thanks a lot!!