Unity实用方法：记录Unity中实用的方法(不定期更新)

一、获取DontDestroy场景中所有的GameObject

private GameObject[] getDontDestroyOnLoadGameObjects()
{
    var allGameObjects = new List<GameObject>();
    allGameObjects.AddRange(FindObjectsOfType<GameObject>());
    //移除所有场景包含的对象
    for (var i = 0; i < SceneManager.sceneCount; i++)
    {
        var scene = SceneManager.GetSceneAt(i);
        var objs = scene.GetRootGameObjects();
        for (var j = 0; j < objs.Length; j++)
        {
            allGameObjects.Remove(objs[j]);
        }
    }
    return allGameObjects.ToArray();
}

二、洗牌刷新

/// <summary>
/// 洗牌刷新
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="list"></param>
static void Shuffle<T>(IList<T> list)
{
    Random rng = new Random();
    int n = list.Count;
    while (n > 1)
    {
        n--;
        var k = rng.Next(n + 1);
        (list[k], list[n]) = (list[n], list[k]);
    }
}