unity给物体添加可以包裹所有子物体的BoxCollider

  MeshTool.SpawnCollider(mode);

using UnityEngine;

public class MeshTool
{
   
   

    public static Bounds SpawnCollider(Transform target)
    {
   
   
        Vector3 pMax = Vector3.zero;
        Vector3 pMin = Vector3.zero;
        Vector3 center = Vector3.zero;

        Vector3 oldPos = target.transform.position;
        Quaternion oldQua = target.transform.rotation;
        Vector3 oldScale = target.transform.localScale;

        target.transform.position = Vector3.zero;
        target.transform.rotation = Quaternion.identity;
        target.transform.localScale = Vector3.one;

        Bounds bounds = CalcBounds(target, ref pMax, ref pMin, ref center);

        BoxCollider collider = target.GetComponent<BoxCollider>();
        if (collider