public void RemoveSkillRelation(Skill skill)
{
if (!RelationChild.Contains(skill))
{
return;
}
RelationChild.Remove(skill);
RelationParent.Remove(skill);
skill.RemoveSkillRelation(this);
}
/// <summary>
/// Helper function for adding skill relations.
/// Adds to both this skill and to <paramref name="relation"/>.
/// </summary>
/// <param name="relation">The skill this skill is related to.</param>
public void AddSkillRelation(Skill relation)
{
// if already in list, don't add it again.
if (RelationChild.Contains(relation))
{
return;
}
// add to this skill
RelationChild.Add(relation);
RelationParent.Add(relation);
// add to the other skill, if it already exists in relation it
// will not be added again.
relation.AddSkillRelation(this);
}