OnCollisionEnter2D not called

Questions & Answers
1

i have “bullet” object that is spawn when user press fire button

void Update () {
		if (fireRate == 0) {
			if(Input.GetButtonDown("Fire1")){
				Instantiate (BulletTrailPrefab, firePoint.position, firePoint.rotation);
			}
		} 
	}

bullet prefab has BoxCollider2D and script that make its move, in that script i want to detect collision with any other object

// Update is called once per frame
	void Update () {
		transform.Translate (Vector3.right * Time.deltaTime * moveSpeed);
		Destroy (gameObject, 1);

	}

	void OnCollisionEnter2D(Collision2D coll) {
		Debug.Log (coll.gameObject.name+" was hit");
	}

however when i shoot test object - it also have boxCollider2D - OnCollisionEnter2D not been call

2

One of the two objects must have a rigidbody on it for the collision to work. Since you haven’t specified about it, I assume there is not rigidbody attached to your game objects (bullet or test object).

You can add a rigidbody to your bullet prefab since it is definitely a rigidbody.