/// <summary>
/// Removes a modifier from the set.
/// </summary>
/// <param name="modifier">the modifier to remove from the set.</param>
/// <returns>the original set with the modifiers removed.</returns>
public DanmakuSet RemoveModifier(IDanmakuModifier modifier)
{
Modifiers.Remove(modifier);
return(this);
}
/// <summary>
/// Adds a modifier to the set.
/// </summary>
/// <param name="modifier">the modifier to add</param>
/// <returns>the original set with the modifier added.</returns>
public DanmakuSet AddModifier(IDanmakuModifier modifier)
{
Modifiers.Add(modifier);
return(this);
}