How to destroy Gameobjects by a boundary? C#

Questions & Answers
1

I am trying to build a 3D Turret that will shoot at the player. So far I have the turret shoot and point at the player, However when shot the bullets just keep going and the boundary I made to destroy them isn’t working. I have looked at the space Shooter tutorial on Unity’s site and it isn’t helping.
This is my boundary’s code

using UnityEngine;

using System.Collections;

public class DestroyBoundary : MonoBehaviour {

void OnTriggerExit(Collider other)
{
	if (other.gameObject.tag == "Bullet") 
	{
		Destroy(other.gameObject);
		
	}
}

}

When the bullets Leave the collider they aren’t being destroyed.
This is My Bullet’s Settings

50894-unitygameobject.jpg
50894-unitygameobject.jpg362×690 73.1 KB

2

You should not use colliders for that. It is much easier (and cheaper) to save the timestamp or position when bullet is fired and check them against current time / current position respectively to enforce limits.

  1. This solution will increase (just a little) your game performance.
  2. It allows you to avoid speeding collision problem when bullet flying so fast it jumps through collider in 2 frames.
  3. Also you won’t hear about FixedUpdate/Update problem when physics cycle skipped during lag.

And one more thing. Executing game logic code in physics cycle (FixedUpdate and OnCollision/OnTrigger messages) is bad practice, avoid it where possible.