Updating a Value in OnTriggerEnter and Returning That Value Immediately...

Hi everyone,

I've been getting familiar with Unity and scripting in C# recently, and I've come across a snag that I can't find/figure out a solution despite my searches here.

I'm trying to find a way to enable an object with a trigger and return a bool value that tells me if anything is within the trigger as the object is enabled. Trying to figure this out, I came to the conclusion that anything within an OnTriggerEnter function won't update until the next frame (I'm not entirely sure if this is correct).

So, to test this theory, I've set up a test case with two scripts involved. I'm attempting to use a Coroutine to delay the setting of the bool value to allow for the OnTriggerEnter function to execute. The first is a script that waits for my input. It's placed on a blank gameObject in the scene. When the input key is pressed ("f"), it sets the disabled gameobject to active and calls a function that begins a coroutine.

The first class:

 public class GlobalTriggerTest : MonoBehaviour {
     public GameObject foo;
     void Update () 
     {
         CheckForInput();
     }
     void CheckForInput()
     {
         if (Input.GetKeyDown(KeyCode.F))
         {
             foo.SetActive(true);
             Debug.Log(foo.GetComponent<TestingTriggers>().BeginPublicCoroutine());
         }
     }
 }

The second class, attached to a Cube gameObject in the scene. This cube is disabled right top of another, active cube. So when I active the object to which this script is attached, it is definitely colliding with something. Both cubes have kinematic rigidbodies:

 public class TestingTriggers : MonoBehaviour {
     bool triggerSwitch;
     public bool deliverableTriggerSwitch;
     public bool BeginPublicCoroutine()
     {
         StartCoroutine(DeliverBoolResults());
         return deliverableTriggerSwitch;
     }
     public bool returnTriggerSwitch()
     {
         return triggerSwitch;
     }
     IEnumerator DeliverBoolResults()
     {
         yield return new WaitForSeconds(5.0f);
         Debug.Log("I'm waiting for 5 seconds");
         deliverableTriggerSwitch = returnTriggerSwitch();
     }
     void OnTriggerEnter(Collider col)
     {
         triggerSwitch = true;
     }
     void OnTriggerExit(Collider col)
     {
         triggerSwitch = false;
     }
 }

There's a WaitForEndOfFrame that I could try using, but I wanted the function to be dramatic enough for me to see the results. Currently, however, when I press f, the prints a value of false to the console, even if the object is clearly within the bounds of anothe, waits 5 seconds, and then prints the Log message in the Coroutine to the console.

I'm not sure that this is the proper solution to my overarching issue, so if my approach is all wrong, please feel free to steer me in a different direction. Ultimately, I'm trying to find a way to be able to return a bool with its value tied to whether a trigger has detected any kind of entry as it's enabled.

Thanks very much everybody!