How to rotate on x axis in code over a period of time

Unity Engine
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1

Hello, i’m trying to make my gun rotate 360 degrees on the x axis across 2 seconds, I’ve tried searching online for an answer, but haven’t found anything yet, any help?

2

You can try to change the rotation property of transform component.

using UnityEngine;

public class Rotate : MonoBehaviour
{
    public float SecondPassed, PeriodSeconds;
    // Start is called before the first frame update
    void Start()
    {
        PeriodSeconds = 2; 
    }

    // Update is called once per frame
    void Update()
    {
        SecondPassed = Time.time;
        gameObject.transform.rotation = Quaternion.Euler(SecondPassed * (360 / PeriodSeconds), 0, 0);
    }
}

Hope this helps! Feel free to ask if you have any questions.

3

Here’s another solution that works for sufficiently short intervals
(Edit: this limit is due to 32-bit floating point precision, as it’s unwise to accumulate more than 3 digits of integral values, roughly speaking. Obviously, IEEE-754 is a binary format, not decimal, so the explanation is more complicated than that.)

using UnityEngine;

public class RotateOverTime : MonoBehaviour {
 
  [SerializeField] [Range(1E-2f, 480f)] float _duration; // in seconds (assumes one revolution)
  [SerializeField] Vector3 _eulerAxis; // in degrees of rotation

  float _elapsed = 0f;
  Vector3? _rotationAxis;

#if UNITY_EDITOR
  void OnValidate() => _rotationAxis = null;
#endif

  void Update() {
    if(!_rotationAxis.HasValue)
      _rotationAxis = Quaternion.Euler(_eulerAxis) * Vector3.right;

    var t = _elapsed / _duration;
    var angle = Mathf.LerpUnclamped(0f, 360f, t);
    transform.localRotation = Quaternion.AngleAxis(angle, _rotationAxis.Value);

    _elapsed += Time.deltaTime;
    if(_elapsed >= _duration) _elapsed -= _duration;
  }

}

Edit: had a typo Validate => OnValidate