How can I get direction of linecast?

Questions & Answers
1

I'm trying to make my character shoot along linecast. Linecast starts from bulletspawnpoint and ends at point where mouse is pointing. This is third person shooter. Here is my code:

void Update()
{
    Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
    RaycastHit HitPoint;
    RaycastHit HitPointMouse;
    Physics.Raycast(ray, out HitPoint);
    Physics.Linecast(GameObject.Find("Player").transform.position, HitPoint.point,       out HitPointMouse);
    Debug.DrawLine(GameObject.Find("Player").transform.position, HitPoint.point, Color.yellow);

    if(Input.GetButtonDown("Fire1"))
        {
            Instantiate(Bullet, GameObject.Find("BulletSpawnPoint").transform.position, Quaternion.identity);
            Bullet.rigidbody.AddForce(<DirectionOfRayHere> * 1000);
        }
}
2

It's as simple as:

Vector3 v3RayDirection = HitPoint.point - GameObject.Find("Player").transform.position;
Bullet.rigidbody.AddForce(v3RayDirection * 1000);

Now, depending on how you want to add the force, to get a true direction you might want to normalize that vector.

Bullet.rigidbody.AddForce(v3RayDirection.normalized * 1000);

And FYI - you're probably gonna want to save a reference to the player's game object using a private variable or something like that... GameObject.Find is pretty slow. You don't want to run it each frame!