/// <summary>
/// Get ChaFiles that are related to this heroine. Warning: It might not return some copies.
/// </summary>
public static IEnumerable <ChaFileControl> GetRelatedChaFiles(this SaveData.Heroine heroine)
{
if (heroine == null)
{
throw new ArgumentNullException(nameof(heroine));
}
var results = new HashSet <ChaFileControl>();
if (heroine.charFile != null)
{
results.Add(heroine.charFile);
}
if (heroine.chaCtrl != null && heroine.chaCtrl.chaFile != null)
{
results.Add(heroine.chaCtrl.chaFile);
}
var npc = heroine.GetNPC();
if (npc != null && npc.chaCtrl != null && npc.chaCtrl.chaFile != null)
{
results.Add(npc.chaCtrl.chaFile);
}
return(results);
}