Shooting at the player in 3D space

Scripting
1

Hi guys

This code shoots at the player in a 2D space, but i just cant get it working in 3D.
It seems to just always shoot left no matter where the player is.

This line
newBullet.GetComponent().AddRelativeForce(new Vector2(0f, torpedoSpeed));

used to be

newBullet.GetComponent().AddRelativeForce(new Vector2(0f, torpedoSpeed));

but it didnt make any difference.

lastTimeShot = Time.time;
                float angle = Mathf.Atan2(direction.x, direction.z) * Mathf.Rad2Deg - 90f;
                Quaternion q = Quaternion.AngleAxis(angle, Vector3.forward);
                GameObject newBullet = Instantiate(roundUFOTorpedo, transform.position, q);
                newBullet.GetComponent<Rigidbody>().AddRelativeForce(new Vector2(0f, torpedoSpeed));
                lastTimeShot = Time.time;
                Destroy(newBullet, 5);
2

You probably want to use Vector3 here or something. That Vector2 means torpedoSpeed long vector to the left. So it will always push the newBullet to the left.

3

Hello. Thinking that it could be the same for Vector2 and Vector3, respectfully you are totally wrong. Vector3 means that you have a third dimension and you HAVE to use a Rigidbody (not a Rigidbody2D). If you want to shot a bullet forward, you should create a script more or less similar with this one. I guess that you want to apply a force on your bullet rigidbody (of course, your instantiated bullet must have a Rigidbody component). Code tested :

using UnityEngine;
// instantiate a rigidbody then set its velocity
public class BulletBehavior : MonoBehaviour
{   // assign a Rigidbody component in the inspector to instantiate
    public Rigidbody projectile;
    public float force = 10f;

    void Update()
    {   // left mouse button pressed
        if (Input.GetMouseButtonDown(0))
        {   // instantiate the projectile
            Rigidbody clone;
            clone = Instantiate(projectile, transform.position + transform.forward * 0.5f, transform.rotation);
            // give the cloned object an initial velocity
            clone.velocity = transform.TransformDirection(Vector3.forward * force);
            Destroy(clone.gameObject, 2); // destroy bullet after 2 seconds
        }
    }
}