Problem with Trigger

Questions & Answers
1

hello guys…I am working on my first 2d unity game and I am stuck. The problem is:
The ball is rolling down. I have created an empty game object and attached a box collider to it and the Trigger is on. I want to destroy the game objects as they exit the trigger and spawn new objects. however I have written the code. It is working but not all the game objects are getting destroyed some are remaining as it is even if they exit the trigger.
code:

using UnityEngine;
using System.Collections;
using System;

public class BoxCollControl : MonoBehaviour {
  public GameObject player;
  private Vector3 pos;
  private Collider2D cor;
  //private woodManager wd;

  // Use this for initialization
  void Start () {
  }

  // Update is called once per frame 
  void FixedUpdate () {
    pos = player.transform.position;
    pos.z = -1;
    pos.x += 0;
    gameObject.transform.position = pos;
  }

  void OnTriggerExit2D(Collider2D other){
    if (other.tag == "path" || other.tag == "stopper") {
       Debug.Log ("Hiiiiii");
       cor = other;
       GameObject.Destroy(cor.gameObject);
       woodManager.Instance.Spawnwood();
    }
  }
}

so please guys help me so that I can continue…
thank you

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73018-screenshot-271.png1600×900 214 KB

2

First, confirm whether or not OnTriggerExit2D is being called (set a breakpoint at the if statement). When it is called, make the sure the tag of the object is correct.

Another common issue with triggers comes about when objects are instantiated inside of the trigger - in some cases OnTriggerEnter2D will not be called, and if that happens then OnTriggerExit2D will never be called. To get around this with a simple box collider you can just implement the check yourself, so every few updates check whether the ball is still in the collider.

Also, make sure that the ball has a rigidbody2d attached (I’m guessing there already is because you are talking about the ball rolling => physics).