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

Question

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>();
        }
    }
}

"but I need to through LINQ" - any particular reason why?

Guru Stron
– Guru Stron

2022-12-12 15:35:33 +00:00
Commented Dec 12, 2022 at 15:35 — Guru Stron
– Guru Stron, Commented Dec 12, 2022 at 15:35

YungDeiza · Accepted Answer · 2022-12-12 15:45:10Z

1

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.

answered Dec 12, 2022 at 15:45

YungDeiza

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Siruj · Accepted Answer · 2022-12-12 15:47:44Z

1

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();

answered Dec 12, 2022 at 15:47

Siruj

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