(Unity2D)如何使用添加的容差禁用不在视口中的对象？并在视图中重新启用

using UnityEngine;

public class DisableObjectsOutsideViewport : MonoBehaviour
{
    private Camera mainCamera;
    private Vector2 viewportBoundsMin;
    private Vector2 viewportBoundsMax;

    private void Start()
    {
        mainCamera = Camera.main;

        // 获取视口范围的边界
        viewportBoundsMin = mainCamera.ViewportToWorldPoint(Vector2.zero);
        viewportBoundsMax = mainCamera.ViewportToWorldPoint(Vector2.one);
    }

    private void Update()
    {
        // 遍历场景中的所有对象
        foreach (var obj in FindObjectsOfType<GameObject>())
        {
            // 检查对象是否在视口范围内
            if (!IsObjectInViewport(obj))
            {
                // 禁用不在视口中的对象
                obj.SetActive(false);
            }
            else
            {
                // 在视图中重新启用对象
                obj.SetActive(true);
            }
        }
    }

    private bool IsObjectInViewport(GameObject obj)
    {
        // 获取对象的边界框
        var objBounds = obj.GetComponent<Collider2D>().bounds;

        // 检查对象的边界框是否与视口范围相交
        return objBounds.Intersects(new Bounds(
            new Vector3(viewportBoundsMin.x, viewportBoundsMin.y, 0),
            new Vector3(viewportBoundsMax.x - viewportBoundsMin.x, viewportBoundsMax.y - viewportBoundsMin.y, 0)
        ));
    }
}