Can't get triggers to work.

Unity Engine
1

I’m starting to make a game and I can’t seem to get any triggers to work. What I’ve tried doing is once my player passes through a wall an object in the room becomes visible. I have set up the wall with a 2D Box Collider and have applied a rigid body on my player. My script is as follows:

using UnityEngine;
using System.Collections;

public class Trigger : MonoBehaviour {

    public GameObject obj;
   
    // Update is called once per frame
    void OnTriggerEnter2D() {
        obj.SetActive (true);
    }
}

Any help would be greatly appreciated!

2

Make sure your player also has a collider2D object and make sure either the player’s collider or the wall collider have the isTrigger box checked.

Jay

3

Thank you for the reply, but neither of these seem to be the problem :frowning:

4

What is your Trigger script attached to?

Also, throw a Debug.Log(“Triggered!”); into the OnTriggerEnter2D() function – that way you’ll know whether the problem is with the triggering or with the obj being set to active. (If the message shows, the trigger works.)

Jay

PS - I would imagine Unity would throw an error if it cares, but you might want to include the parameter that’s passed into the OnTriggerEnter2D function:
void OnTriggerEnter2D(Collider2D other)

5

I tried this, and the Debug.Log doesn’t even show in the console. :confused: