Do "whatever" when two colliders enter a trigger

I will try to make it brief as possible.

There are two main characters in my game, and I want something to happen when they -both- enter (or stay in) a trigger at the same time.

for example: When both players enter a certain area, a door will open, or an object will be destroyed etc.

Both characters are tagged with “Player”.

Doing it with colliders would be possible but a bit ugly. Here is an alternate solution. The ‘WithinRadius()’ function will return true if the pivot points of the all game object with a ‘Player’ tag are within a specified radius of the game object that has the following script. There are possible efficiency improvements that should not be necessary for for just two ‘player’ objects.

#pragma strict

var radius = 1.5;
private var players : GameObject[];

function Start() {
	players = GameObject.FindGameObjectsWithTag("Player");
}

function Update() {
	if (WithinRadius()) {
		Debug.Log("All player within radius of this game object");
	}
}

function WithinRadius() : boolean {

	for (var i = 0; i < players.Length; i++) {
		if (Vector3.Distance(players*.transform.position, transform.position) > radius)*
  •  	return false;*
    
  • }*
  • return true;*
    }