internal bool Remove(Duel duel)
{
var comparer = new Duel.EqualityComparer();
var index = this.Duels.FindIndex(d => comparer.Equals(d, duel));
if (index < 0) return false;
this.Duels.RemoveAt(index);
return true;
}
private void AssertDecisionIsNotRegisteredYet(Duel duel)
{
var comparer = new Duel.EqualityComparer();;
if (this.Outcomes.Any(o => comparer.Equals(o.Decision.Duel, duel)))
{
throw new Exception("A decision for this duel has already been registered.");
}
}