Generic Triggers and Actions

Hi, I'm trying to develop generic scripts. There would be two different types. The first type is a trigger script and the second one is a action script. What I want is that those two scripts are perfectly generic and can be match with one another without problems.

Example: I have two trigger scripts (TrigWhenNoAudio and TrigWhenClick) and two action scripts (DoChangeScene and DoNotRender)

In this example I want to have only 4 scripts and still be able to make the 4 arrangements (NoAudio-ChangeScene,NoAudio-NotRender,Click-ChangeScene,Click-NotRender) without creating any extra script.

My idea was to use events and delegates. In the trig scripts I would create a delegate and an event and then in the action scripts I would create a function that does the action and also add that function to the appropriate event.

This is where the problem is; I don't want to write any specific event/delegate in any of the action scripts. So I tried to create a generic class of trigger that each trigger script would inherit from. In my action script I could use the mother class trig to define the event to which will be added the function.

If the scripts were functional, I would then want the event to be set by the user as a public member.

Here is what I tried:

---

Trig.cs

 using UnityEngine;
 using System.Collections;
 
 public abstract class Trig : MonoBehaviour
 {
     public delegate void Action();
     public static event Action trig;
 }

---

TrigWhenNoAudio.cs

 using UnityEngine;
 using System.Collections;
 
 public class TrigWhenNoAudio : Trig
 {
     //public delegate void NoSoundAction();
     public static new event Action trig;
 
     private AudioSource audioSource;
 
     void Start()
     {
         audioSource = GetComponent<AudioSource>();
     }
 
     void Update()
     {
         if (!audioSource.isPlaying)
         {
             if(trig != null)
                 trig();
         }
     }
 }

---

DoChangeScene.cs

 using UnityEngine;
 using System.Collections;
 
 public class DoChangeScene : MonoBehaviour
 {
     public event TrigWhenNoAudio.Action m_trigger;//I want this to be set by the user
     public string sceneName="";
 
     void OnEnable()
     {
         m_trigger += ChangeScene;
         //TrigWhenNoAudio.trig += ChangeScene; //This works if decommented but it's not generic
     }    
     void OnDisable()
     {
         m_trigger -= ChangeScene;
         //TrigWhenNoAudio.trig -= ChangeScene; //This works if decommented but it's not generic
     }
 
     // Use this for initialization
     void ChangeScene()
     {
         Application.LoadLevel(sceneName);
     }
 }

This code doesn't work because the member m_trigger is not set (and doesn't appear as a parameter for the user). If I try to initialize it like so:

 public event TrigWhenNoAudio.Action m_trigger = TrigWhenNoAudio.trig;

it still doesn't work because "The event TrigWhenNoAudio.trig' can only appear on the left hand side of += or -= when used outside of the type TrigWhenNoAudio'". I also tried with pointers but with no luck "Cannot take the address of, get the size of, or declare a pointer to a managed type `Trig.Action'"

Maybe there is a radically different way to do what I'm trying to do. If you have any idea, let me know. Thanks in advance for any help!

Philou231