How to make bullets pass through each other.

Questions & Answers
1

Hi, I am making a simple two player tank game similar to a game called tank trouble. The bullets are able to bounce off of other objects including copies of itself. How do I make it so that the bullets can go through each other, but still be able to bounce through other objects? This is my script:

using UnityEngine;

using System.Collections;

public class BulletScript : MonoBehaviour {

public int range = 200;
private GameObject player1;
private Vector3 oldVelocity;
public Rigidbody rb;
public GameObject bullet;

void Start () {
	GameObject Player = GameObject.Find("Player 1");
	Shooting playerScript = Player.GetComponent<Shooting>();
	rb = GetComponent<Rigidbody>();
	rb.velocity = playerScript.m_FireTransform.forward * 15;
	rb.freezeRotation = true;
}
void Update () {
	GameObject Player = GameObject.Find("Player 1");
	Shooting playerScript = Player.GetComponent<Shooting>();

	if (range < 0) {
		Destroy (gameObject);
		playerScript.ammo += 1;
	}
	range --;
	oldVelocity = rb.velocity;
}
void OnCollisionEnter(Collision collision){
	ContactPoint contact = collision.contacts [0];
	Vector3 reflectedVelocity = Vector3.Reflect (oldVelocity, contact.normal);
	rb.velocity = reflectedVelocity;
	Quaternion rotation = Quaternion.FromToRotation (oldVelocity, reflectedVelocity);
	transform.rotation = rotation * transform.rotation;
}

}

2

  1. Make a new layer called “Bullets”

  2. Go to Edit → Project Settings → Physics and under the Layer Collision Matrix, untick the box that has the row and column for Bullets (Should be on the anti-diagonal)

Now your bullets will pass through each others