public static List <Level> LoadAllLevels()
{
if (levelsByLevelNum == null)
{
levelsByLevelNum = new Dictionary <int, Level>();
TextAsset[] levelXMLObjects = Resources.LoadAll <TextAsset>("LevelXML");
foreach (TextAsset levelText in levelXMLObjects)
{
Level level = LevelXMLParser.ParseLevel(levelText.text);
levelsByLevelNum.Add(level.LevelNumber, level);
}
}
List <Level> result = new List <Level>();
List <int> sortedLevelNums = levelsByLevelNum.Keys.ToList();
sortedLevelNums.Sort();
foreach (int levelNum in sortedLevelNums)
{
result.Add(levelsByLevelNum[levelNum]);
}
return(result);
}
