/// <summary>
/// Picks a specified number of message from the ballot box to be handed out to the kingdoms
/// </summary>
/// <param name="ballotBox"></param>
/// <returns></returns>
private List <Message> PickRandomMessages(BallotBox ballotBox)
{
// In some cases the number of alliance requests might be less
// than the number of messages the high priest intended to select
messagesToChoose = Math.Min(ballotBox.Count, messagesToChoose);
var choosenMessages = new List <Message>();
// The High Priest of Southeros chooses the messages to send out
for (int i = 0; i < messagesToChoose; i++)
{
choosenMessages.Add(ballotBox.PickMessage());
}
return(choosenMessages);
}
/// <summary>
/// Finds the ruler of Southeros using a ballot system
/// </summary>
/// <param name="southeros">Reference to a ISoutheros implemented class object</param>
/// <returns>Returns a boolean denoting whether a king was crowned or not</returns>
public bool HoldBallot(ISoutheros southeros)
{
// Randomizer to choose message to write
var rnd = new Random();
//Ballot round
int round = 0;
// The drawing from the ballot goes on until a winner is decided or we reach maxRounds
while (southeros.RulingKingdom == null &&
++round <= maxRounds)
{
// Get a new ballot box
var ballotBox = new BallotBox();
// Round up all kingdoms competing for the throne
var competingKingdoms = southeros.AllKingdoms.Where(kv => kv.Value.IsCompeting).Select(kv => kv.Key).ToList();
// Each competing kingdom composes messages...
foreach (var competitor in competingKingdoms)
{
// ...for all the other kingdoms
foreach (var reciver in southeros.AllKingdoms.Keys)
{
// ...except itself ofcourse ¯\_(ツ)_/¯
if (reciver == competitor)
{
continue;
}
var newRequest = new Message(competitor, reciver, Utility.listOfMessages[rnd.Next(Utility.listOfMessages.Count)]);
ballotBox.DropMessage(newRequest);
}
}
// The High Priest of Southeros chooses the messages to send out
var choosenMessages = PickRandomMessages(ballotBox);
// Hand over the messages
foreach (var message in choosenMessages)
{
southeros.AllKingdoms[message.Sender].SendMessage(southeros.AllKingdoms[message.Recipient], message);
}
// Declare results
console.WriteLine($"{Environment.NewLine}Results after round {Utility.IntegerToWritten(round)} ballot count");
// Variable to store max allies by any kingdom
var maxAllies = 0;
foreach (var competitor in competingKingdoms)
{
var allyCount = southeros.AllKingdoms[competitor].Allies.Count;
console.WriteLine($"Allies for {competitor} : {allyCount}");
maxAllies = allyCount > maxAllies ? allyCount : maxAllies;
}
// Find the kingdom(s) with the most allies
var leadingKingdoms = southeros.AllKingdoms.Where(kv => kv.Value.IsCompeting && kv.Value.Allies.Count == maxAllies);
// If there is a tie
if (leadingKingdoms.Count() > 1)
{
// Clear the list of old competitors
competingKingdoms.Clear();
// Create a new list comprising of the kingdoms there was a tie between
competingKingdoms.AddRange(leadingKingdoms.Select(kv => kv.Key));
// Break all alliances
foreach (var kingdom in southeros.AllKingdoms.Values)
{
kingdom.BreakAlliances();
}
}
// If not...
else
{
// ...we declare the winner
southeros.RulingKingdom = leadingKingdoms.FirstOrDefault().Value;
}
}
return(southeros.RulingKingdom != null);
}
