Specifying a delegate for the value of onupdate in iTween.

Questions & Answers
1

Is there an easy way to modify iTween to be able to pass delegates as values for callbacks like onupdate?

Checking the source of the CallBack method in iTween.cs, I can see that anything that’s not a string is currently rejected for the value of something like onupdate:

/* From iTween.cs */

//throw an error if a string wasn't passed for callback:
if (tweenArguments[callbackType].GetType() == typeof(System.String)) {
    target.SendMessage((string)tweenArguments[callbackType],(object)tweenArguments[callbackType+"params"],SendMessageOptions.DontRequireReceiver);
}else{
    Debug.LogError("iTween Error: Callback method references must be passed as a String!");
    Destroy (this);
}

Anyone know what would be the best way to achieve something that would be close to the following?

iTween.ValueTo(gameObject, 
               iTween.Hash("from", 0f, "to", 1f, "time", 0.5f), 
                           value => { });
2

Check out this Issue at iTween’s Google Project

Modify the iTween.cs, changed the method Callback() at Line 7039 to

	void CallBack(string callbackType){
		if (tweenArguments.Contains(callbackType) && !tweenArguments.Contains("ischild")) {
			//establish target:
			GameObject target;
			if (tweenArguments.Contains(callbackType+"target")) {
				target=(GameObject)tweenArguments[callbackType+"target"];
			}else{
				target=gameObject;	
			}
			//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
			if (tweenArguments[callbackType] is Action<object>) {
				((Action<object>)tweenArguments[callbackType]).Invoke((object)tweenArguments[callbackType + "params"]);
			} else
				//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
		
			//throw an error if a string wasn't passed for callback:
			if (tweenArguments[callbackType].GetType() == typeof(System.String)) {
				target.SendMessage((string)tweenArguments[callbackType],(object)tweenArguments[callbackType+"params"],SendMessageOptions.DontRequireReceiver);
			}else{
				Debug.LogError("iTween Error: Callback method references must be passed as a String!");
				Destroy (this);
			}
		}
	}

And you can use Action like

            iTween.ValueTo(go, iTween.Hash(
                "from", _component.X,
                "to", x,
                "onUpdate", (Action<object>) (newX => _component.X = (float) newX)
            ));