public SimulationCalculator(RewardPool rewardPool)
{
this.rewardPool = rewardPool;
Fraction product = new Fraction(1, 1);
foreach (var rewardItem in rewardPool.RewardItems)
{
product *= rewardItem.Rarity;
}
totalSlots = (int)product.Denominator;
}
static void FindAverage(string parameters, string[] lines, bool printItems)
{
if (parameters.Split('/').Length > 1)
{
foreach (var par in parameters.Split('/'))
{
FindAverage(par, lines, printItems);
}
return;
}
var rewardPool = new RewardPool(lines);
if (printItems)
{
rewardPool.PrintItems();
}
ICalculator calculator;
var sw = new Stopwatch();
string calcText = "";
string outputText = "";
if (parameters.StartsWith("mc"))
{
calculator = new AnalyticCalculator(rewardPool);
calcText = "Trying to solve markov-chain";
outputText = "Solving markov-chain took {0} ms";
}
else
{
if (parameters.Split(' ').Length == 2)
{
SimulationCalculator.Tries = Convert.ToInt32(parameters.Split(' ')[1]);
}
else
{
SimulationCalculator.Tries = defaultNSimulations;
}
calcText = "Simulating until " + SimulationCalculator.Tries + " completions";
calculator = new SimulationCalculator(rewardPool);
outputText = "Simulation of " + SimulationCalculator.Tries + " completions took {0} ms";
}
Console.WriteLine(calcText);
sw.Start();
var result = calculator.CalculateAverage();
sw.Stop();
Console.WriteLine("On average needed {0:F2} tries", result);
Console.WriteLine(outputText, sw.ElapsedMilliseconds);
}
public static Matrix <double> CreateMatrix(RewardPool rewardPool)
{
rows = new List <int>();
cols = new List <int>();
vals = new List <double>();
var table = new Dictionary <int[], int>(new MyComparer());
var goal = rewardPool.RewardItems.Select(t => t.Amount).ToArray();
var probs = rewardPool.RewardItems.Select(t => (double)t.Rarity).ToArray();
int len = goal.Length;
var list = new List <int[]>();
int index = 0;
list.Add(goal);
table.Add(goal, index++);
NewValue(table[goal], table[goal], 1);
while (list[0].Sum() != 0)
{
var newlist = new HashSet <int[]>(new MyComparer());
for (int i = 0; i < list.Count; i++)
{
for (int j = 0; j < len; j++)
{
if (list[i][j] > 0)
{
int[] arr = new int[len];
Array.Copy(list[i], arr, len);
arr[j]--;
if (!newlist.Contains(arr))
{
newlist.Add(arr);
table.Add(arr, index++);
NewValue(table[arr], table[arr], 1 - probs[j]);
NewValue(table[arr], table[list[i]], probs[j]);
}
else
{
AddToValue(table[arr], table[arr], -probs[j]);
NewValue(table[arr], table[list[i]], probs[j]);
}
}
}
}
list = newlist.ToList();
}
return(GetMatrix());
}
public AnalyticCalculator(RewardPool rewardPool)
{
this.rewardPool = rewardPool;
}