public void BeChallenged(Player challenger, Round round)
{
GuardAgainstDisallowedGames(challenger);
// Notify domain of event.
ApplyChange(new PlayerWasChallenged(Id, Username, _externalId, _authToken, round.Id, challenger.Username, challenger.Id));
}
public void IssueChallenge(Player opponent, Round round)
{
GuardAgainstDisallowedGames(opponent);
opponent.BeChallenged(this, round);
ApplyChange(new PlayerChallenged(Id, opponent.Id, round.Id));
}