Extensions

1. Get Hierarchy Path of a GameObject in Scene

public static string GetHierarchyPath(this GameObject obj)
{
    string path = "/" + obj.name;
    while (obj.transform.parent != null)
    {
        obj = obj.transform.parent.gameObject;
        path = "/" + obj.name + path;
    }
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    return path.Substring(1);
}

public static string GetHierarchyPath(this Transform obj)
{
    string path = "/" + obj.name;
    while (obj.transform.parent != null)
    {
        obj = obj.parent;
        path = "/" + obj.name + path;
    }

    return path;
}

2. Get a GameObject reference from a hierarchy Path in Scene

public static Transform FindByHierarchyPath(this string path)
{
    if (string.IsNullOrEmpty(path))
    {
        return null;
    }

    string[] names = path.Split('/');
    var roots = SceneManager.GetActiveScene().GetRootGameObjects();
    Transform parent = null;
    for (int i = 0; i < roots.Length; i++)
    {
        if (roots[i].name == names[0])
        {
            parent = roots[i].transform;
            break;
        }
    }

    int index = 1;
    while (parent != null && index < names.Length)
    {
        var child = parent.Find(names[index]);
        parent = child;
        
        index++;
    }

    return parent;
}