private void InitProbabilisticCombinations(Dictionary <int, Combination> combinations)
{
foreach (var comb in combinations)
{
float totalWeight = 0;
int probabilisticCount = 0;
int determinedCount = 0;
comb.Value.WeightedPackages.ForEach(
x =>
{
totalWeight += x.Weight;
if (x.Weight == 0)
{
determinedCount++;
}
else
{
probabilisticCount++;
}
});
var probabilisticComb = new ProbabilisticCombination();
probabilisticComb.Id = comb.Key;
probabilisticComb.DeterminedPackages = new ProbabilisticPackage[determinedCount];
probabilisticComb.ProbabilisticPackages = new ProbabilisticPackage[probabilisticCount];
int currentWeight = 0;
int d = 0, p = 0;
foreach (var pac in comb.Value.WeightedPackages)
{
var probPac = new ProbabilisticPackage();
probPac.Id = pac.Id;
probPac.DeterminedResourceItems = _packages[pac.Id].DeterminedResourceItems;
probPac.ProbabilisticResourceItems = _packages[pac.Id].ProbabilisticResourceItems;
if (pac.Weight == 0)
{
probPac.Probability = 1;
probabilisticComb.DeterminedPackages[d] = probPac;
d++;
}
else
{
currentWeight += pac.Weight;
probPac.Probability = currentWeight / totalWeight;
probabilisticComb.ProbabilisticPackages[p] = probPac;
p++;
}
}
_combinations.Add(comb.Key, probabilisticComb);
}
}
private void CombinationGeneration(ProbabilisticCombination combination, Dictionary <int, DeterminedResourceItem> result)
{
foreach (var pac in combination.DeterminedPackages)
{
PackageGeneration(pac, result);
}
double r = _randomizer.NextDouble();
foreach (var pac in combination.ProbabilisticPackages)
{
if (r < pac.Probability)
{
PackageGeneration(pac, result);
break;
}
}
}