/// <summary>
/// Delete the object named key from existence.
/// </summary>
public static void DeleteObject(string key)
{
if (!Objects.ContainsKey(key))
{
return;
}
GameObject del = (CollidableObject)Objects[key];
if (CollidableObjects.Contains(del))
{
CollidableObjects.Remove((CollidableObject)del);
}
if (UIObjects.Contains(del))
{
UIObjects.Remove((UIObject)del);
}
if (NonUIObjects.Contains(del))
{
NonUIObjects.Remove(del);
}
if (Backgrounds.Contains(del))
{
Backgrounds.Remove((Background)(del));
}
Objects.Remove(key);
}
/// <summary>
/// Adds the given background to the song's background list if it doesn't already exist (can be undone).
/// </summary>
/// <param name="bg">The background to add.</param>
/// <param name="forceAdd">if set to <c>true</c> the background will be added even if it already exists.</param>
/// <returns>
/// The index of the new background.
/// </returns>
public int AddBackground(SongBackground bg, bool forceAdd = false)
{
bool contains = !forceAdd && Backgrounds.Contains(bg);
Action redo = () =>
{
if (!contains)
{
backgrounds.Add(bg);
}
};
Action undo = () =>
{
if (!contains)
{
backgrounds.Remove(bg);
}
};
Undo.ChangeFactory.OnChanging(this, undo, redo, "AddBackground");
if (contains)
{
return(Backgrounds.IndexOf(bg));
}
else
{
backgrounds.Add(bg);
return(Backgrounds.Count - 1);
}
}