public int GetDirection(MTRandom rnd)
{
var visited = true;
var direction = 0;
while (visited)
{
direction = (int)rnd.GetUInt32() & 3;
visited = this.Directions[direction] != 0;
}
this.Directions[direction] = 1;
return direction;
}
public int GetDirection(MTRandom rnd)
{
var visited = true;
var direction = 0;
while (visited)
{
direction = (int)rnd.GetUInt32() & 3;
visited = this.Directions[direction] != 0;
}
this.Directions[direction] = 1;
return(direction);
}
private int GenerateSubPathRandomDir(MTRandom rnd, int[] directions)
{
for (int i = 0; i < 4; i++)
{
if (directions[i] == 0)
{
while (true)
{
int random_dir = (int)(rnd.GetUInt32() & 3);
if (directions[random_dir] == 0)
{
directions[random_dir] = 1;
return(random_dir);
}
}
}
}
return(-1);
}
public uint GetRandom(byte id, MTRandom rnd)
{
return(this.GetAt(id, rnd.GetUInt32(), rnd.GetUInt32()));
}
public bool GenerateSubPath(MTRandom rnd, int coverageFactor, int branchProbability)
{
if (!this.isCriticalPathGenerated)
{
return(false);
}
if (this.isSubPathGenerated)
{
return(true);
}
if (coverageFactor > 100)
{
coverageFactor = 100;
}
if (branchProbability > 100)
{
branchProbability = 100;
}
var freeRooms = 0;
for (int y = 0; y < this.Height; ++y)
{
for (var x = 0; x < this.Width; ++x)
{
if (!this.Rooms[x][y].Occupied)
{
freeRooms += 1;
}
}
}
var coverage = (int)(freeRooms * coverageFactor / 100);
var toVector = new List <Position>();
if (this.CriticalPath.Count > 0)
{
foreach (var move in this.CriticalPath)
{
toVector.Add(move.PosTo);
}
toVector.RemoveAt(toVector.Count - 1);
}
toVector = this.GenerateSubPathSub1(toVector);
if (coverage <= 0)
{
return(true);
}
var tempVector = new List <Position>();
for (int i = 0; i < coverage; ++i)
{
var vect = toVector;
var flag = false;
if (tempVector.Count == 0)
{
if (toVector.Count == 0)
{
break;
}
flag = true;
}
else
{
if (toVector.Count == 0)
{
flag = false;
vect = tempVector;
}
else
{
var rndNum = rnd.GetUInt32() % 100;
flag = branchProbability >= rndNum;
if (!flag)
{
vect = tempVector;
}
}
}
int rndIndex = (int)(rnd.GetUInt32() % (uint)vect.Count());
var pos = vect[rndIndex];
var room = this.GetRoom(pos);
var directions = new int[] { 0, 0, 0, 0 };
var rndDirection = -1;
var direction = 0;
while (true)
{
rndDirection = this.GenerateSubPathRandomDir(rnd, directions);
if (room.GetPassageType(rndDirection) == 0)
{
if (this.IsRoomInDirectionFree(pos, rndDirection))
{
break;
}
}
direction += 1;
if (direction >= 4)
{
break;
}
}
if (direction >= 4)
{
tempVector = this.GenerateSubPathSub3(tempVector, toVector);
toVector = this.GenerateSubPathSub1(toVector);
continue;
}
var biasedPos = pos.GetBiasedPosition(rndDirection);
var room2 = this.GetRoom(biasedPos);
room.Directions[rndDirection] = 2;
room2.Directions[Direction.GetOppositeDirection(rndDirection)] = 1;
_counter += 1;
room2.VisitedCount = _counter;
tempVector.Add(biasedPos);
if (!flag)
{
tempVector.RemoveAt(rndIndex);
toVector.Add(pos);
}
tempVector = this.GenerateSubPathSub3(tempVector, toVector);
toVector = this.GenerateSubPathSub1(toVector);
}
this.isSubPathGenerated = true;
return(true);
}
private bool GenerateCriticalPathRecursive(int critPathPos, int critPathMin, int critPathMax, int direction, MTRandom rnd)
{
var directions = new int[4];
_critPathMaxResult += 1;
if (_critPathMaxResult <= 10 * critPathMax)
{
if (critPathMin <= critPathPos && critPathPos <= critPathMax && this.IsRoomInDirectionFree(_currentPos, StartDirection))
{
this.StartPos = _currentPos;
foreach (var move in this.CriticalPath)
{
int temp = move.PosFrom.X;
move.PosFrom.X = move.PosTo.X;
move.PosTo.X = temp;
temp = move.PosFrom.Y;
move.PosFrom.Y = move.PosTo.Y;
move.PosTo.Y = temp;
move.Direction = Direction.GetOppositeDirection(move.Direction);
}
this.CriticalPath.Reverse();
return(true);
}
else
{
critPathPos += 1;
var count = 0;
if (critPathPos <= critPathMax)
{
if (direction != -1)
{
direction = Direction.GetOppositeDirection(direction);
}
for (int i = 0; i < 4; i++)
{
if (i == direction)
{
directions[i] = 0;
}
else
{
var next_pos = _currentPos.GetBiasedPosition(i);
directions[i] = Sub(next_pos);
count += directions[i];
}
}
while (count > 0)
{
var rndNum = rnd.GetUInt32() % count + 1;
int cnt2 = 0;
var iDir = 0;
while (iDir < 4)
{
cnt2 += directions[iDir];
if (cnt2 >= rndNum)
{
break;
}
iDir++;
}
count -= directions[iDir];
directions[iDir] = 0;
if (this.MakeMove(iDir))
{
if (this.GenerateCriticalPathRecursive(critPathPos, critPathMin, critPathMax, iDir, rnd))
{
return(true);
}
this.UndoMove();
}
}
}
}
}
return(false);
}
/// <summary>
/// Finds appropriate place to use as unlock place for given locked place.
/// </summary>
/// <param name="lockedPlace"></param>
/// <returns>Index of unlock place in Places list</returns>
public int GetUnlock(PuzzlePlace lockedPlace)
{
var lockedPlaceIndex = lockedPlace.PlaceIndex;
// Get index of room behind lockedPlace door.
lockedPlaceIndex = this.Places[lockedPlaceIndex].Room.Neighbor[lockedPlace.DoorDirection].RoomIndex;
if (lockedPlaceIndex == 0 || lockedPlaceIndex == -1) // should be last room in section.
{
lockedPlaceIndex = this.Places.Count;
}
List <int> possiblePlacesOnPath = new List <int>();
List <int> possiblePlacesNotOnPath = new List <int>();
var deadEnd = -1;
var deadEndDepth = 0;
RoomTrait room;
// places before lockedPlaceIndex are always behind it.
for (var i = 0; i < lockedPlaceIndex; ++i)
{
room = this.Places[i].Room;
if (!this.Places[i].IsUsed && !room.isLocked && room.RoomType != RoomType.Start)
{
// Check is this place have locked doors.
// Locked places tend to not reserve themselves, so they could share place with some puzzle, like another locked place.
// But they couldn't be shared with unlock places, because they have to control all doors.
var haveLockedDoors = false;
for (var j = 0; j < 4; ++j)
{
if (room.DoorType[j] == (int)DungeonBlockType.DoorWithLock && room.Links[j] == LinkType.To)
{
haveLockedDoors = true;
break;
}
}
if (!haveLockedDoors)
{
var emptyNeighborCount = 0;
for (var dir = 0; dir < 4; ++dir)
{
if (room.IsLinked(dir) && !room.Neighbor[dir].isReserved)
{
emptyNeighborCount++;
}
}
if (emptyNeighborCount < 2)
{
if (deadEndDepth < this.Places[i].Depth)
{
deadEnd = i;
}
}
if (room.isOnPath)
{
possiblePlacesOnPath.Add(i);
}
else
{
possiblePlacesNotOnPath.Add(i);
}
}
}
}
// Chance to not use deepest corner for unlock place.
if (_rng.GetUInt32(100) < 40)
{
deadEnd = -1;
}
if (possiblePlacesOnPath.Count == 0 && possiblePlacesNotOnPath.Count == 0)
{
// Convert locked place room back to alley if there are no more locked doors.
room = this.Places[lockedPlace.PlaceIndex].Room;
room.SetDoorType(lockedPlace.DoorDirection, (int)DungeonBlockType.Alley);
room.SetPuzzleDoor(null, lockedPlace.DoorDirection);
var isLockedRoom = room.DoorType.Any(x => (x == (int)DungeonBlockType.DoorWithLock || x == (int)DungeonBlockType.BossDoor));
if (!isLockedRoom)
{
room.isLocked = false;
room.RoomType = RoomType.Alley;
}
// Return locked place door to list on available doors.
var lockedDoorCandidate = new LockedDoorCandidateNode(room, lockedPlace.DoorDirection, room.RoomIndex);
_lockedDoorCandidates.AddFirst(lockedDoorCandidate);
throw new PuzzleException("Out of unlock places.");
}
var possiblePlaces = (possiblePlacesNotOnPath.Count > 0 ? possiblePlacesNotOnPath : possiblePlacesOnPath);
var placeIndex = deadEnd != -1 ? deadEnd : possiblePlaces[(int)_rng.GetUInt32((uint)possiblePlaces.Count)];
// Walk down from current place to our path and add new possible doors to this._lockedDoorCandidates
room = this.Places[placeIndex].Room;
while (room.RoomType != RoomType.Start)
{
if (room.isOnPath)
{
break;
}
var dir = room.GetIncomingDirection();
room.isOnPath = true;
room = room.Neighbor[dir];
// skip reserved doors
//if (room.ReservedDoor[Direction.GetOppositeDirection(dir)]) continue;
// skip reserved places
if (room.isReserved)
{
continue;
}
var lockedDoorCandidate = new LockedDoorCandidateNode(room, Direction.GetOppositeDirection(dir), room.RoomIndex);
_lockedDoorCandidates.AddFirst(lockedDoorCandidate);
}
return(placeIndex);
}
public bool GenerateSubPath(MTRandom rnd, int coverageFactor, int branchProbability)
{
if (!this.isCriticalPathGenerated)
return false;
if (this.isSubPathGenerated)
return true;
if (coverageFactor > 100)
coverageFactor = 100;
if (branchProbability > 100)
branchProbability = 100;
var freeRooms = 0;
for (int y = 0; y < this.Height; ++y)
{
for (var x = 0; x < this.Width; ++x)
{
if (!this.Rooms[x][y].Occupied)
freeRooms += 1;
}
}
var coverage = (int)(freeRooms * coverageFactor / 100);
var toVector = new List<Position>();
if (this.CriticalPath.Count > 0)
{
foreach (var move in this.CriticalPath)
toVector.Add(move.PosTo);
toVector.RemoveAt(toVector.Count - 1);
}
toVector = this.GenerateSubPathSub1(toVector);
if (coverage <= 0)
return true;
var tempVector = new List<Position>();
for (int i = 0; i < coverage; ++i)
{
var vect = toVector;
var flag = false;
if (tempVector.Count == 0)
{
if (toVector.Count == 0)
break;
flag = true;
}
else
{
if (toVector.Count == 0)
{
flag = false;
vect = tempVector;
}
else
{
var rndNum = rnd.GetUInt32() % 100;
flag = branchProbability >= rndNum;
if (!flag)
vect = tempVector;
}
}
int rndIndex = (int)(rnd.GetUInt32() % (uint)vect.Count());
var pos = vect[rndIndex];
var room = this.GetRoom(pos);
var directions = new int[] { 0, 0, 0, 0 };
var rndDirection = -1;
var direction = 0;
while (true)
{
rndDirection = this.GenerateSubPathRandomDir(rnd, directions);
if (room.GetPassageType(rndDirection) == 0)
{
if (this.IsRoomInDirectionFree(pos, rndDirection))
break;
}
direction += 1;
if (direction >= 4)
break;
}
if (direction >= 4)
{
tempVector = this.GenerateSubPathSub3(tempVector, toVector);
toVector = this.GenerateSubPathSub1(toVector);
continue;
}
var biasedPos = pos.GetBiasedPosition(rndDirection);
var room2 = this.GetRoom(biasedPos);
room.Directions[rndDirection] = 2;
room2.Directions[Direction.GetOppositeDirection(rndDirection)] = 1;
_counter += 1;
room2.VisitedCount = _counter;
tempVector.Add(biasedPos);
if (!flag)
{
tempVector.RemoveAt(rndIndex);
toVector.Add(pos);
}
tempVector = this.GenerateSubPathSub3(tempVector, toVector);
toVector = this.GenerateSubPathSub1(toVector);
}
this.isSubPathGenerated = true;
return true;
}
private bool GenerateCriticalPathRecursive(int critPathPos, int critPathMin, int critPathMax, int direction, MTRandom rnd)
{
var directions = new int[4];
_critPathMaxResult += 1;
if (_critPathMaxResult <= 10 * critPathMax)
{
if (critPathMin <= critPathPos && critPathPos <= critPathMax && this.IsRoomInDirectionFree(_currentPos, StartDirection))
{
this.StartPos = _currentPos;
foreach (var move in this.CriticalPath)
{
int temp = move.PosFrom.X;
move.PosFrom.X = move.PosTo.X;
move.PosTo.X = temp;
temp = move.PosFrom.Y;
move.PosFrom.Y = move.PosTo.Y;
move.PosTo.Y = temp;
move.Direction = Direction.GetOppositeDirection(move.Direction);
}
this.CriticalPath.Reverse();
return true;
}
else
{
critPathPos += 1;
var count = 0;
if (critPathPos <= critPathMax)
{
if (direction != -1)
direction = Direction.GetOppositeDirection(direction);
for (int i = 0; i < 4; i++)
{
if (i == direction)
directions[i] = 0;
else
{
var next_pos = _currentPos.GetBiasedPosition(i);
directions[i] = Sub(next_pos);
count += directions[i];
}
}
while (count > 0)
{
var rndNum = rnd.GetUInt32() % count + 1;
int cnt2 = 0;
var iDir = 0;
while (iDir < 4)
{
cnt2 += directions[iDir];
if (cnt2 >= rndNum)
break;
iDir++;
}
count -= directions[iDir];
directions[iDir] = 0;
if (this.MakeMove(iDir))
{
if (this.GenerateCriticalPathRecursive(critPathPos, critPathMin, critPathMax, iDir, rnd))
return true;
this.UndoMove();
}
}
}
}
}
return false;
}
private int GenerateSubPathRandomDir(MTRandom rnd, int[] directions)
{
for (int i = 0; i < 4; i++)
{
if (directions[i] == 0)
{
while (true)
{
int random_dir = (int)(rnd.GetUInt32() & 3);
if (directions[random_dir] == 0)
{
directions[random_dir] = 1;
return random_dir;
}
}
}
}
return -1;
}
