unity 多个物体模拟中心点（找到几个物体的中心点）

    public Vector3 WholeFloorCenter(Transform transform_)
    {
        Transform parent = transform_;
        Vector3 center = Vector3.zero;
        if (parent.childCount > 0)
        {
            for (int i = 0; i < parent.childCount; i++)
            {
                center += parent.GetChild(i).position;
            }
            center /= parent.childCount;

            return center;
        }
        else
        {
            return Vector3.zero;
        }
    }