团结，用鼠标旋转相机

Question

我设法编写了从鼠标位置旋转相机的脚本。我

using UnityEngine;

public class RotatingTheCamera
{
        [SerializeField] private float sensitivityVert;
        [SerializeField] private float sensitivityHor;
        [SerializeField] private float minimumVert;
        [SerializeField] private float maximumVert;
        private float _rotationX = 0;

        private void Update()
        {
                if (Time.timeScale == 1)
                {
                        _rotationX -= Input.GetAxis("Mouse Y") * sensitivityVert;
                        _rotationX = Mathf.Clamp(_rotationX, minimumVert, maximumVert);
                        float delta = Input.GetAxis("Mouse X") * sensitivityHor;
                        float rotationY = transform.localEulerAngles.y + delta;
                        transform.localEulerAngles = new Vector3(_rotationX, rotationY, 0);
                }
        }
}

不知道如何在按下鼠标左按钮上旋转相机（例如拖动，但旋转）。没有那个“新输入系统”是否有可能？我现在不能使用它（我不是巫师