rotation math problem

Questions & Answers
1

so I want to make a tank, the head of the tank should follow the rotation of the camera in a slow pace.
this is what i have
{
public Transform box; // the camera
private Vector3 boxrot; //the rotation of the camera
private Vector3 head; // rotation of the head

    // Start is called before the first frame update
    void Start()
    { 

    }

    // Update is called once per frame
    void Update()
    {
        boxrot = new Vector3(box.rotation.eulerAngles.x, box.rotation.eulerAngles.y, box.rotation.eulerAngles.z);
        head = this.transform.eulerAngles;
        if (head.y > boxrot.y) { head.y -= 1f;  };
        if (head.y < boxrot.y) { head.y += 1f; };

        this.transform.rotation = Quaternion.Euler(270,0,head.y);
    }
}

it works fine but at the front of the tank the rotation degree’s switch from 0 to 360. so the head moves back becouse 0 < 360

153256-rthnesthn.png

the head(green) wil go the long way to the camera(blue)

2

You can use Quaternion.RotateTowards instead like this

transform.rotation = Quaternion.RotateTowards(transform.rotation, box.rotation, 1f);

If you only want to rotate it towards a certain axis, then you can set the eulerAngels of your camera to a Vector3, and use Quaternion.Euler() for the target like so

 Vector3 rotation = box.rotation.eulerAngles;

 transform.rotation = Quaternion.RotateTowards(transform.rotation, Quaternion.Euler(0, rotation.y, 0), 1f);
3

thanks!! but is it possible to limit this to one axis only?