How can I tell if a player is close enough to an object to pick it up?

Questions & Answers
1

I’m using Raycasting to pickup items but right now it doesn’t matter how close my player is to the object to be able to pick it up. How can I check the distance between the player and the object?

void PickupWeapon()
    {
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        
        RaycastHit hit;
        Debug.DrawRay(ray.origin, ray.direction * 10, Color.red);

        if (Input.GetMouseButtonDown(0))
        {
            if (Physics.Raycast(ray, out hit) == true)
            {
                weaponToHold = hit.transform.gameObject;
                weaponToHold.transform.parent = hand.transform;
                weaponToHold.transform.position = hand.transform.position;
            }
        }
    }
2

The third parameter of Physics.Raycast is the max distance of the ray.

If you did:

            if (Physics.Raycast(ray, out hit, 3) == true)
            {
                weaponToHold = hit.transform.gameObject;
                weaponToHold.transform.parent = hand.transform;
                weaponToHold.transform.position = hand.transform.position;
            }

and it was 2 meters away it would return true.