Input trigger doesn't work

Questions & Answers
1

Hi everyone,

I’m new to unity (and javascript ^^) and I can’t find a solution to my problem.

Here is the problem: I have a script which is working, but when I want to add interactivity with Input.GetButton, nothing happens.

Here is my script:

function OnTriggerEnter(myTrigger : Collider) {

         Debug.Log("Hi");

         if(myTrigger.gameObject.name == "Sphere" && Input.GetButtonUp("Retreat")){

                Debug.Log("follow");
                gameObject.GetComponent( IA_Follow_Player ).enabled = true;

}	
}	

function OnTriggerExit(myTrigger : Collider) {	

        if(myTrigger.gameObject.name == "Sphere"){

               gameObject.GetComponent( IA_Follow_Player ).enabled = false;
               Debug.Log("Stun");
  	}  
}

Without " && Input.GetButtonUp(“Retreat”) " (first if statement), everything is working perfectely. But when I add it, I don’t have any error on the console and I can read the messages “Hi” and “Stun” from the console. Unfortunately, I can’t read “Follow” and my script “IA_Follow_Player” doesn’t play.

Basically, I just want my script “IA_Follow_Player” to execute if the gameObject my script is attached to is colliding with “Sphere” AND if I press a key.

(I also tried with Input.GetButton(“Retreat”) / Input.GetButtonDown(“Retreat”) / Input.GetKey(1) / Input.GetKeyUp(1) / Input.GetKeyDown(1), and I named in the input manager a “Retreat” input. I also tried many keys to be sure that it was not from my keyboard).

Does anyone have a clue ?

Thanks a lot.

2

The problem is you are trying to detect a key event in the exact same frame as a trigger event. Unless the player has amazing timing or pure luck, this will never happen. The OnTriggerEnter event only happens for a single frame, and so does Input.GetButtonUp. You need to rethink what you are trying to do.

3

If you want “interactivity” you will need OnTriggerStay or a different function. Here’s my suggestion.

    var follow : boolean = false
    
    function Update()
    {
            if(Input.GetButtonUp("Retreat")){
                 if(follow){//<-- same as if(follow == true)
                   gameObject.GetComponent( IA_Follow_Player ).enabled = true;  
                 }
            }
    }
    function OnTriggerEnter(myTrigger : Collider) {
     
             Debug.Log("Hi");
     
             if(myTrigger.gameObject.name == "Sphere"{
     
                    Debug.Log("follow");
                    follow = true;
                    
     
    }   
    }   
     
    function OnTriggerExit(myTrigger : Collider) {  
     
            if(myTrigger.gameObject.name == "Sphere"){
     
                   gameObject.GetComponent( IA_Follow_Player ).enabled = false;
                   follow = false;
                   Debug.Log("Stun");
        }  
    }