public static List <Player> RunDayOne(List <Player> players, int numReentries)
{
var dayOnePlayers = new List <Player>(players);
var dayTwoPlayers = new List <Player>();
var roundNumber = 0;
// need to avoid getting stuck with an odd player out
// probably just fail them out
while (dayOnePlayers.Count > 1)
{
// random match making until we know better
Shuffle(dayOnePlayers);
for (var index = 0; index < dayOnePlayers.Count - 1; index += 2)
{
var playerOne = dayOnePlayers[index];
var playerTwo = dayOnePlayers[index + 1];
// yeah yeah yeah decimals aren't doubles blah blah blah
bool playerOneWins = EloCalculator.PredictResult(playerOne.Elo, playerTwo.Elo)[0] >= (decimal)rng.NextDouble();
if (playerOneWins)
{
playerOne.CurrentWins++;
playerOne.DayOneWins++;
playerTwo.CurrentLosses++;
playerTwo.DayOneLosses++;
}
else
{
playerTwo.CurrentWins++;
playerTwo.DayOneWins++;
playerOne.CurrentLosses++;
playerOne.DayOneLosses++;
}
}
for (var index = dayOnePlayers.Count - 1; index >= 0; index--)
{
var player = dayOnePlayers[index];
if (player.CurrentLosses == 3)
{
player.GemsWon += Math.Max(0, 400 * (player.CurrentWins - 2));
if (player.Run <= numReentries)
{
// Re-enter the tournament
player.Run++;
player.CurrentWins = 0;
player.CurrentLosses = 0;
player.GemsSpent += 4000;
}
else
{
// you're out!
dayOnePlayers.RemoveAt(index);
}
}
else if (player.CurrentWins == 7) // shouldn't really need the else but if there's a bug it's less bad this way
{
dayTwoPlayers.Add(player);
dayOnePlayers.RemoveAt(index);
}
}
roundNumber++;
Console.WriteLine("After round " + roundNumber + " of Day 1 - " + dayOnePlayers.Count +
" remaining players, and " + dayTwoPlayers.Count + " day two players.");
}
return(dayTwoPlayers);
}
static void Run(int numPlayers, int numReentries, double eloDistribution)
{
// This doesn't really matter but I picked from the same source as my default distribution
// https://www.mtgcommunityreview.com/single-post/2018/06/12/Luck-Skill-and-Magic
double eloMean = 1678.632;
// I'm not actually going to adjust anyone's elo as they go - I'm using it as a representation of "true" skill
var playerDistribution = new NormalDistribution(eloMean, eloDistribution);
var players = new List <Player>();
for (var index = 0; index < numPlayers; index++)
{
var player = new Player();
player.Elo = (decimal)playerDistribution.Generate();
player.GemsSpent = 4000;
players.Add(player);
}
var dayTwoPlayers = RunDayOne(players, numReentries);
foreach (var player in dayTwoPlayers)
{
player.CurrentWins = 0;
player.CurrentLosses = 0;
}
RunDayTwo(dayTwoPlayers);
var dayOneAvgElo = players.Average(p => p.Elo);
var dayTwoAvgElo = dayTwoPlayers.Average(p => p.Elo);
var dayTwoWinPercent = EloCalculator.PredictResult(dayTwoAvgElo, (decimal)eloMean)[0] * 100;
Console.WriteLine($"Day one average Elo: {dayOneAvgElo}.");
Console.WriteLine($"Day two average Elo: {dayTwoAvgElo} ({dayTwoWinPercent,3:0.0}% win percent).");
var numBuckets = 100;
var bucketSize = numPlayers / numBuckets;
if (numPlayers % numBuckets != 0)
{
Console.WriteLine("Warning - please use a multiple of " + numBuckets + " for more accurate top end performance");
}
var eloSorted = players.OrderBy(p => p.Elo).ToList();
var skip = 0;
while (skip + bucketSize <= eloSorted.Count)
{
var nextBucket = eloSorted.Skip(skip).Take(bucketSize).ToList();
var minElo = (int)nextBucket.Min(p => p.Elo);
var maxElo = (int)nextBucket.Max(p => p.Elo);
var avgElo = (int)nextBucket.Average(p => p.Elo);
var avgGems = nextBucket.Average(p => p.GemsWon - p.GemsSpent);
var avgDayOneWins = nextBucket.Average(p => p.DayOneWins);
var avgDayOneLosses = nextBucket.Average(p => p.DayOneLosses);
var avgDayTwoWins = nextBucket.Average(p => p.DayTwoWins);
var avgDayTwoLosses = nextBucket.Average(p => p.DayTwoLosses);
var winPercentage = EloCalculator.PredictResult(avgElo, (decimal)eloMean)[0] * 100;
var bucketNumber = skip / bucketSize + 1;
Console.WriteLine($"{avgElo} ({minElo}-{maxElo}) ({winPercentage,3:0.0}% game win%, bucket #{bucketNumber}): {avgGems} gems, " +
$"{avgDayOneWins,3:0.0}-{avgDayOneLosses,3:0.0} on day one, " +
$"{avgDayTwoWins,3:0.0}-{avgDayTwoLosses,3:0.0} on day two.");
skip += bucketSize;
}
}
public static void RunDayTwo(List <Player> players)
{
var dayTwoPlayers = new List <Player>(players);
var roundNumber = 0;
while (dayTwoPlayers.Count > 1)
{
Shuffle(dayTwoPlayers);
for (var index = 0; index < dayTwoPlayers.Count - 1; index += 2)
{
var playerOne = dayTwoPlayers[index];
var playerTwo = dayTwoPlayers[index + 1];
var playerOneGameWinChance = EloCalculator.PredictResult(playerOne.Elo, playerTwo.Elo)[0];
var playerOneMatchWinChance = playerOneGameWinChance * playerOneGameWinChance * (3 - 2 * playerOneGameWinChance);
bool playerOneWins = playerOneMatchWinChance >= (decimal)rng.NextDouble();
if (playerOneWins)
{
playerOne.DayTwoWins++;
playerTwo.DayTwoLosses++;
}
else
{
playerTwo.DayTwoWins++;
playerOne.DayTwoLosses++;
}
}
for (var index = dayTwoPlayers.Count - 1; index >= 0; index--)
{
var player = dayTwoPlayers[index];
if (player.DayTwoLosses == 2)
{
var gemsWon = 0;
switch (player.DayTwoWins)
{
case 1:
case 2:
case 3:
gemsWon = player.DayTwoWins * 2000;
break;
case 4:
case 5:
gemsWon = (player.DayTwoWins - 3) * 10000;
break;
case 6:
gemsWon = 200000;
break;
}
player.GemsWon += gemsWon;
dayTwoPlayers.RemoveAt(index);
}
else if (player.DayTwoWins == 7) // shouldn't really need the else but if there's a bug it's less bad this way
{
player.GemsWon += 400000;
dayTwoPlayers.RemoveAt(index);
}
}
roundNumber++;
Console.WriteLine("After round " + roundNumber + " of Day 2 - " + dayTwoPlayers.Count +
" remaining players.");
}
}
