Reusable script for calling functions on other scripts on trigger

Questions & Answers
1

My game has lots of triggers which will do something different when the player touches them. Right now each trigger object has its own script which will call a function in another script.

But this seems inefficient to me. I wondered if there was a solution where I could add the same script component to all these triggers, and choose a function to call in another script through the inspector. Like you can when choosing an onclick event for a button (you can select a script and a function).

I think this would be efficient, but I’m not sure how to reference another script and function through the inspector. Anyone else think this is a good idea? Anyone do it already? How would it be done?

2

Not really sure if this is what you’re after, but something like this?->

Some class :

using UnityEngine;

/**this script/class just sits in the standard assets folder somewhere and doesn't
  attach to any objects in the scene**/

[System.Serializable]
public class SomeClass
{
   //an enum for each method/function you make
   public enum MethodSelect
   {
      DoThis, DoThat, DoSomethingElse
   }

   //set in inspector which method to use
   public MethodSelect method ;

   //main method that is called from wherever...
   public void DoStuff()
   {
      //switch to a different case for each method you make
      switch(method)
      {
         case MethodSelect.DoThis :
            DoThis() ;
            break ;
         case MethodSelect.DoThat :
            DoThat() ;
            break ;
         case MethodSelect.DoSomethingElse :
            DoSomethingElse() ;
            break ;
      }
   }

   //the methods for each of your enum values-->

   void DoThis()
   {
      Debug.Log("Did This") ;
   }

   void DoThat()
   {
      Debug.Log("Did That") ;
   }

   void DoSomethingElse()
   {
      Debug.Log("Did Something Else") ;
   }
}

Some other class with a SomeClass variable : 

using UnityEngine;
using System.Collections;

/**the script to attach to game objects in the scene**/

public class UseSomeClass : MonoBehaviour
{
   //set [method] of this in the inspector
   public SomeClass someClass ;

   void OnTriggerEnter()
   {
      //call the main method DoStuff() on someClass
      someClass.DoStuff() ;
   }
}