protected Province selectProvince()
{
List <WeightedObjects <Province> > weighted_provinces = new List <WeightedObjects <Province> >();
List <Province> obsolete_provinces = new List <Province>();
foreach (Province province in PotentialProvinces)
{
bool add_province = true;
add_province = selectionModifier(province);
// Do not change the primary terrain feature more than once.
if (!province.isDefault && isPrimary)
{
add_province = false;
obsolete_provinces.Add(province);
}
foreach (Modifier modifier in province.ProvincialModifiers)
{
if (modifier.Forbids != null)
{
for (int i = 0; i < modifier.Forbids.Length; i++)
{
if (Tags.Contains(modifier.Forbids[i]))
{
add_province = false;
}
}
}
}
if (add_province)
{
weighted_provinces.Add(new WeightedObjects <Province>(province));
}
}
foreach (Province province in obsolete_provinces)
{
PotentialProvinces.Remove(province);
}
foreach (WeightedObjects <Province> weighted_province in weighted_provinces)
{
weighted_province.Weight += 5;
foreach (Modifier modifier in weighted_province.Object.ProvincialModifiers)
{
if (modifier.IncreasesWeight != null)
{
for (int i = 0; i < modifier.IncreasesWeight.Length; i++)
{
if (Tags.Contains(modifier.IncreasesWeight[i]))
{
weighted_province.Weight += WeightChange;
}
}
}
}
// Primary terrain features are more likely to appear next to each other.
if (isPrimary)
{
for (int i = 0; i < 8; i++)
{
SystemCoordinates coords = weighted_province.Object.Coordinates;
coords = coords.GetNeighbour(i);
if (coords.isInTileGridBounds())
{
if (Program.State.ProvinceGrid[coords.X, coords.Y].PrimaryTerrainFeature.GetType() == weighted_province.Object.PrimaryTerrainFeature.GetType())
{
weighted_province.Weight += WeightChange;
}
}
}
}
}
return(WeightedObjects <Province> .ChooseRandomObject(weighted_provinces, rnd));
}