private static ChallengeCategoryParam[] GetOpeningCategory()
{
ChallengeCategoryParam[] array = ((IEnumerable <ChallengeCategoryParam>)MonoSingleton <GameManager> .Instance.MasterParam.ChallengeCategories).OrderByDescending <ChallengeCategoryParam, int>((Func <ChallengeCategoryParam, int>)(cat => cat.prio)).ToArray <ChallengeCategoryParam>();
List <ChallengeCategoryParam> challengeCategoryParamList = new List <ChallengeCategoryParam>();
foreach (ChallengeCategoryParam category in array)
{
if (ChallengeMission.IsCategoryOpening(category))
{
challengeCategoryParamList.Add(category);
}
}
return(challengeCategoryParamList.ToArray());
}