How do you add bullet spread to a 2D Top down Shooter?

Questions & Answers
1

I am trying to add bullet spread to this script:

//Shoot a bullet
IEnumerator Shoot(int extraShot)
{

    //Generate a random value
    int randomVal = Random.Range(0, 180);
    Vector3 spread = new Vector3(0, 0, randomVal-90);

    //Add a bullet

    GameObject bullet = Instantiate(bulletPrefab, firePoint.position,     Quaternion.Euler(firePoint.rotation.eulerAngles + spread)); 

     //Get Rigidbody2D
    Rigidbody2D rb = bullet.GetComponent<Rigidbody2D>();

     //Add a force
    rb.AddForce(firePoint.up * bulletForce, ForceMode2D.Impulse);
 
    yield return new WaitForSeconds(0);

}

I want the bullet to deviate once it is fired out of the firepoint. I have tried to changing the code myself by adding spread to the firepoint rotation but it only rotates the graphics of the bullet prefab instead of the direction it travels.

2

Presumably the problem lies with the force that you apply.
The way I see it now, it looks like you add an up force from the firepoint instead of the bullet which is rotated.

Therefore I would say that you should change

rb.AddForce(firePoint.up * bulletForce, ForceMode2D.Impulse);

to

rb.AddForce(bullet.tranform.up * bulletForce, ForceMode2D.Impulse);

This hasn’t been tested, so you might need to change the direction from .up to .right or maybe the negative on that.

Good luck!