How to rotate object towards where the player is facing?

Unity Engine
, ,
1

Greetings, I’ve been searching throughout most of the google to try finding the solution to this and it seems like there isn’t any kind of help to my problem. The only thing I need is how to get the direction towards the player is facing and implementing the rotations. The intentions with this are, when the player moves the mouse vertically/horizontally while on rotation mode, the object will rotate forwards/sidewards, so the player can manipulate the grabbed object with much more efficiency.
Here’s an example image that may help you understand my problem:

7621117--947752--HowToRotate.png
7621117--947752--HowToRotate.png1350×629 52 KB

Here’s my shot at it:

private void Update()
        {
            Horizontal = Input.GetAxis("Mouse X");
            Vertical = Input.GetAxis("Mouse Y");
        }


private void FixedUpdate()
        {
            //**ROTATE OBJECT**
            if (isRotate)
            {
                var step = rotatingSpeed * Time.deltaTime;
                if(Horizontal != 0f || Vertical != 0f)
                {
                    var direction = (Vector3.forward * Horizontal) + (Vector3.right * Vertical);
                    direction.Normalize();
                    if(Horizontal != 0 || Vertical != 0)
                    {
                        grabbedObject.transform.Rotate(direction * step);
                    }
                 }
            }
         }

Thanks in advance! :wink:

2

I haven’t tried it myself, but I assume you can use Transform.RotateAround() to Rotate an object, using transform.position as the point and player.transform.right and player.transform.up as the axis.

3

I already have a way to control the object’s position around the player, what I really needed was a way to rotate the object’s local rotation. Someone metioned me about this one AddTorque and it kind of works, just with some weird unwanted rotations. Allow me to show you:

private void Update()
        {
        Horizontal = Input.GetAxis("Mouse X");
        Vertical = Input.GetAxis("Mouse Y");
        }

private void FixedUpdate()
        {
            //**ROTATE OBJECT**
            if (isRotate)
            {
                var step = rotatingSpeed * Time.deltaTime;
                var direction = (Vector3.forward * Vertical) + (Vector3.right * Horizontal);
                if (Horizontal != 0f || Vertical != 0f)
                {
                    TorqueRigidbody.AddTorque(direction * step, ForceMode.Acceleration);
                }
            }
        }

With the main issue fixed I come here to ask you if you know any way to get the Horizontal and Vertical input only once? I ask this because once the mouse moves while on rotation mode, the object will spin infinitely until the mouse is on the center of the screen I guess… I’ll try to figure out the messy rotations myself, thank you!!