unity3d:查找子物体，并输出路径，GetComponentsInChildren，递归查找，栈查找

立羽

发布于 2023-08-24 15:02:36

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代码可运行

文章被收录于专栏：Unity3d程序开发Unity3d程序开发

运行总次数：0

代码可运行

分为两步： 1.找到子物体的transform 2.通过child.parent = root,输出路径

找到子物体的transform

有三种方法：GetComponentsInChildren，递归查找，栈查找

GetComponentsInChildren

foreach (Transform t in check.GetComponentsInChildren<Transform>())
{
    if (t.name == name)
    {
        Debug.Log("得到最终子物体的名字是：" + t.name);
        forreturn = t;
        return t;
    }
}

递归

static Transform SearchNodeByRecursion(Transform tree, string valueToFind)
    {
        if (tree.name == valueToFind)
        {
            return tree;
        }
        else
        {
            if (tree.childCount > 0)
            {
                for (int i = 0; i < tree.childCount; i++)
                {
                    var temp = SearchNodeByRecursion(tree.GetChild(i), valueToFind);
                    if (temp != null) return temp;
                }

            }
        }
        return null;
    }

栈

static Transform SearchNodeByStack(Transform rootNode, string valueToFind)
    {
        var stack = new Stack<Transform>(new[] { rootNode });
        while (stack.Count > 0)
        {
            var n = stack.Pop();
            if (n.name == valueToFind)
            {
                //出栈，如果找到目标返回
                return n;
            }

            //当前节点还有child，全部入栈
            if (n.childCount > 0)
            {
                for (int i = 0; i < n.childCount; i++)
                {
                    stack.Push(n.GetChild(i));
                }
            } 
        }

        //栈为0还没找到
        return null;
    }

输出路径

string GetChildPath(Transform check, string name)
    {
        List<string> listPath = new List<string>();
        string path = "";
        Transform child = GetTransform(check, name);
        Transform parent = child.parent;
        if (child != null)
        {
            listPath.Add(child.name);
            while (parent != null && parent != check )
            {
                listPath.Add(child.parent.name);
                parent = parent.parent;
            }
        }
        listPath.Add(check.name);

        for (int i = listPath.Count-1; i>= 0; i--)
        {
            path += listPath[i];
            if (i != 0)
            {
                path += "/";
            }
        }

        return path;
    }