private void AddMonstersToRoomsOnLevelGaussianDistribution(MapInfo mapInfo, int level, IEnumerable <Monster> monster)
{
//Get the number of rooms
var allRoomsAndCorridors = mapInfo.GetRoomIndicesForLevel(level).Except(new List <int> {
mapInfo.StartRoom
});
var rooms = mapInfo.FilterOutCorridors(allRoomsAndCorridors).ToList();
var candidatePointsInRooms = rooms.Select(room => mapInfo.GetAllPointsInRoomOfTerrain(room, RoomTemplateTerrain.Floor));
var roomsAndPointsInRooms = rooms.Zip(candidatePointsInRooms, Tuple.Create);
var monstersToPlaceRandomized = monster.Shuffle().ToList();
int noMonsters = monstersToPlaceRandomized.Count;
int noRooms = rooms.Count();
LogFile.Log.LogEntryDebug("No rooms: " + noRooms + " Total monsters to place (level: " + level + "): " + noMonsters, LogDebugLevel.Medium);
//Distribution amongst rooms, mostly evenly, scaled by room size
var roomMonsterRatio = roomsAndPointsInRooms.Select(rp => Math.Max(0, Gaussian.BoxMuller(5, 3)) * rp.Item2.Count());
double totalMonsterRatio = roomMonsterRatio.Sum();
double ratioToTotalMonsterBudget = noMonsters / totalMonsterRatio;
int[] monstersPerRoom = new int[noRooms];
double remainder = 0.0;
for (int i = 0; i < noRooms; i++)
{
double monsterBudget = roomMonsterRatio.ElementAt(i) * ratioToTotalMonsterBudget + remainder;
double actualMonstersToPlace = Math.Floor(monsterBudget);
double levelBudgetSpent = actualMonstersToPlace;
double levelBudgetLeftOver = monsterBudget - levelBudgetSpent;
monstersPerRoom[i] = (int)actualMonstersToPlace;
remainder = levelBudgetLeftOver;
//Any left over monster ratio gets added to the next level up
}
//Calculate actual number of monster levels placed
int totalMonsters = monstersPerRoom.Sum();
LogFile.Log.LogEntryDebug("Total monsters actually placed (level: " + level + "): " + noMonsters, LogDebugLevel.Medium);
//Place monsters in rooms
Dungeon dungeon = Game.Dungeon;
int monsterPos = 0;
for (int r = 0; r < noRooms; r++)
{
int monstersToPlaceInRoom = monstersPerRoom[r];
var candidatePointsInRoom = roomsAndPointsInRooms.ElementAt(r).Item2.Shuffle();
int monstersPlacedInRoom = 0;
foreach (var p in candidatePointsInRoom)
{
if (monsterPos >= monstersToPlaceRandomized.Count)
{
LogFile.Log.LogEntryDebug("Trying to place too many monsters", LogDebugLevel.High);
monsterPos++;
break;
}
Monster mon = monstersToPlaceRandomized[monsterPos];
GiveMonsterStandardItems(mon);
bool placedSuccessfully = Game.Dungeon.AddMonster(mon, level, p);
if (placedSuccessfully)
{
monsterPos++;
monstersPlacedInRoom++;
}
if (monstersPlacedInRoom >= monstersToPlaceInRoom)
{
break;
}
}
}
}
private IEnumerable <Monster> CreateGaussianDistributionOfMonsterTypes(List <Tuple <int, Monster> > typesToPlace, int totalMonsters)
{
int weightAverage = 10;
int weightStdDev = 30;
var monstersAndWeights = typesToPlace.Select(f => new Tuple <int, Monster>((int)Math.Abs(Gaussian.BoxMuller(weightAverage, weightStdDev)) * f.Item1, f.Item2));
var monsterTypesDistributionExpanded = Enumerable.Range(0, totalMonsters).Select(i => ChooseItemFromWeights <Monster>(monstersAndWeights));
return(monsterTypesDistributionExpanded.Select(m => m.NewCreatureOfThisType()));
}