public IQuest AddPrerequisite(IQuestPrerequisite prerequisite)
{
Prerequisites.Add(prerequisite);
return(this);
}
/// <summary>
/// Adds a new prerequisite for accepting this quest.
/// </summary>
/// <param name="prerequisite">The new prerequisite to add.</param>
protected void AddPrerequisite(IQuestPrerequisite prerequisite)
{
Prerequisites.Add(prerequisite);
}