Calling coroutines through pointers/"Function" class?

Questions & Answers
1

Here’s my code:

AIBase.js

#pragma strict

var in_action: boolean;
var action: function(): IEnumerator = coroutine;

function Update () {
    if(in_action)
        return;

    in_action = true;
    enter_phase();
}

function enter_phase() {
    Debug.Log("entering action");
    yield action();
    in_action = false;
}

function coroutine () {
	Debug.Log("in coroutine");
	yield WaitForSeconds(1);
}

If I comment out the “yield WaitForSeconds(1)” the code works and I see “in coroutine” in the debug log. However, if I put it in, I can’t see it anymore. For some reason, I can’t properly call coroutines through pointers or Function classes in UnityScript (but I can call normal functions). How can I get the functionality I want?

P.S. I realize I can just write:

yield coroutine();

but I want to be able to have this AIBase be a base class where the actions are set by the derived classes.

2

Fixed it!

Here’s the new code:

#pragma strict

var in_action: boolean;
var action: function(): IEnumerator = coroutine;

function Update () {
    if(in_action)
        return;

    in_action = true;
    enter_phase();
}

function enter_phase() {
    Debug.Log("entering action");
    yield StartCoroutine(action());
    in_action = false;
}

function coroutine () {
    Debug.Log("in coroutine");
    yield WaitForSeconds(1);
}

just had to change

yield action();

to

yield StartCoroutine(action());
3

UnityScript does allow you to create and call function references, with the Function type (note big F):

#pragma strict

function Start() {
	var myFunc : Function;
	myFunc = Test;
	myFunc();
	
	var myFuncWithArg : Function;
	myFuncWithArg = TestWithArg;
	myFuncWithArg(6);
}

function Test() {
	Debug.Log("Test successful");
}

function TestWithArg(arg : int) {
	Debug.Log("You're thinking of the number " + arg);
}

One downside with the above: I don’t know if there’s a way to force compile-time checking of the types you’ll pass to those functions, like you can get in C#.