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Question by Naserano · Aug 22, 2013 at 03:55 AM · collidertriggerevent

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".

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Answer by robertbu · Aug 22, 2013 at 04:21 AM

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[i].transform.position, transform.position) > radius)
             return false;
     }
     return true;
 }

 
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