Finding an element of the desired type in the GameObject[] array using LINQ-CodePudding

I did a search for an element of the required data type in the GameObject[] array, but I would like to do it via LINQ, how do I do it?

I did it through the foreach loop, but I need to through LINQ

private void OnSceneLoaded(Scene scene, LoadSceneMode loadSceneMode)
{
    if (scene.buildIndex == 2)
    {
        var sceneObjects = scene.GetRootGameObjects();
        foreach (var obj in sceneObjects)
        {
            if(obj.GetComponent<SumoUIManager>())
                sumoUIManager = obj.GetComponent<SumoUIManager>();
        }
    }
}

CodePudding user response：

Using the LINQ First or FirstOrDefault method, you should be able to filter the sumoUIManager from the array:

var sumoUIManager = sceneObjects.FirstOrDefault(x => x is SumoUIManager);

Note: First will throw an exception if there is no object of the SumoUIManager type in the array whereas FirstOrDefault will return null.

CodePudding user response：

In LINQ, the above code would be as follows:

var sceneObjects = scene.GetRootGameObjects();
var sumoUIManager = sceneObjects
    .Where(obj => obj.GetComponent<SumoUIManager>() != null)
    .Select(obj => obj.GetComponent<SumoUIManager>())
    .FirstOrDefault();