Clamp or limit one axis of rotation to a certain angle while using lookAt mouse position.

Questions & Answers
1

I have a THIRD PERSON’S PLAYER’S head that rotates around his neck 360deg independently from his body ( I want the 360 rotate cause it is a robot) and looks up and down to follow the position of the mouse on screen.

But if I point the mouse to the players feet his head looks directly to the ground which is NOT wanted.

I only need the players head to look straight out in front of him to the horizon (which it already does that by nature) and then only look down to about 5 feet in front of him (not specifically 5 feet but you get the point)

Is there some way to CLAMP or limit the angle that the player can look up and down? I do not need the left and right clamped.

Code:

[SerializeField] Transform objectToPan; //players HEAD
    
    void PlayerHeadLookAtMousePos()
        {
            Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
            Plane groupPlane = new Plane(Vector3.up, Vector3.zero);
            float rayLength;
    
            if (groupPlane.Raycast(ray, out rayLength))
            {
                Vector3 pointToLook = ray.GetPoint(rayLength);
                objectToPan.LookAt(pointToLook);
            }
        }
2

public float min = 30;
public float max = 90;

Vector3 currentRotation = transform.rotation;

//Assuming its the x axis might be a different one idk
currentRotation.x = Mathf.Clamp(currentRotation.x, min, max);

transform.rotation = currentRotation