Add event listener to referenced prefab Child

Questions & Answers
1

I have a childObject that i want to have a event listenner when onMoueUp is executed, i made the configuration bellow but the desired behaviour is not achieved.

On a GameObject i have a reference to a preFab GameObject.
This Prefab GO has a collider that isTrigger and the code for this preFab is the following

	using UnityEngine;
	using System.Collections;

	public class Clickable : MonoBehaviour {
		public delegate void ClickAction();
		public  event ClickAction onClicked;

	   void OnMouseDown() {
			 if(onClicked != null){
			 			 	Debug.Log(" HAS CLICK");

				this.onClicked();
			 }
			 else{
			 	Debug.Log("NO CLICKLISTENER");
			 }
			
		}

		
	}

On the parent i have the following:

	using UnityEngine;
	using System.Collections;

	public class VehicleRenderer : MonoBehaviour {
		public float posX,posY,posZ;
	 	public GameObject vehicle;
	 	public string vehicleName;

		// Use this for initialization
		void Start () {
			Quaternion spawnRotation = Quaternion.identity;
			Vector3 spawnPosition = new Vector3 (posX,posY, posZ);
			//Create the prefab
			Instantiate (vehicle, spawnPosition, spawnRotation);	
			
			Clickable clickable=vehicle.GetComponent<Clickable>();
			clickable.onClicked+=vehicleClicked;
		}
		
		// Update is called once per frame
		void Update () {
		
		}
		void vehicleClicked(){
			Debug.Log(vehicleName + " Clicked");
		}

	}

When i click NO CLICKLISTENER is always logged, and the VehicleRenderer click is never invoked

2

You’re getting script from prefab, not from actual instantiated gameObject. Fixed code:

// Save instantiated gameObject to variable
GameObject vehicleObj = Instantiate (vehicle, spawnPosition, spawnRotation);    
// And get Clickable component from it
Clickable clickable = vehicleObj.GetComponent<Clickable>();