////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Adds an exit to the room hooked to another generic room. </summary>
///
/// <remarks> Darrellp, 9/28/2011. </remarks>
///
/// <param name="groom"> The room to be joined to this one. </param>
/// <param name="location"> The location the exit to groom will be. </param>
///
/// <returns> The character allocated for the new exit. </returns>
////////////////////////////////////////////////////////////////////////////////////////////////////
internal char AddExit(GenericRoom groom, MapCoordinates location)
{
char exitChar = (char)('a' + Exits.Count);
Exits.Add(groom);
this[location] = exitChar;
ExitMap[location] = groom;
return(exitChar);
}
private static void AssignTilesInRoom(IRoomsMap map, GenericRoom groom)
{
// Is this room being newly added to the map?
if (map.Rooms.Add(groom))
{
// For each tile in the room
foreach (var tileLocation in groom.Tiles)
{
// Assign the room to that tile
map[tileLocation].Room = groom;
}
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Updates the rooms connected to groom to point to us. </summary>
///
/// <remarks> Darrellp, 9/28/2011. </remarks>
///
/// <param name="groom"> The room whose connected rooms are to be joined to this one. </param>
////////////////////////////////////////////////////////////////////////////////////////////////////
private void UpdateConnectedRoomsToPointToUs(GenericRoom groom)
{
// For each exit in the old room
foreach (var exitInfo in groom.ExitMap)
{
// Get the room on the other side
MapCoordinates location = exitInfo.Key;
GenericRoom groomExitedTo = exitInfo.Value;
int indexToUs = groomExitedTo[location] - 'a';
// and point it back to us
groomExitedTo.Exits[indexToUs] = this;
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Excavates between two rooms. </summary>
///
/// <remarks> Variables named from the perspective of dir being vertical. Darrellp, 9/18/2011. </remarks>
///
/// <param name="map"> The map to be excavated. </param>
/// <param name="roomTop"> The first room. </param>
/// <param name="roomBottom"> The second room. </param>
/// <param name="dir"> The direction to excavate in. </param>
////////////////////////////////////////////////////////////////////////////////////////////////////
private void ExcavateCorridor(IRoomsMap map, RectangularRoom roomTop, RectangularRoom roomBottom, Dir dir)
{
// Locals
MapCoordinates bottomEntrance, topEntrance;
// Get the entrances to each room
GetEntrances(roomTop, roomBottom, dir, out topEntrance, out bottomEntrance);
// Allocate the generic room
int genericWidth = Math.Abs(topEntrance.Column - bottomEntrance.Column) + 1;
int genericHeight = Math.Abs(topEntrance.Row - bottomEntrance.Row) + 1;
int genericLeft = Math.Min(topEntrance.Column, bottomEntrance.Column);
int genericBottom = Math.Min(topEntrance.Row, bottomEntrance.Row);
MapCoordinates genericLocation = new MapCoordinates(genericLeft, genericBottom);
GenericCorridor corridor = new GenericCorridor(genericWidth, genericHeight, genericLocation);
// Excavate a connection between the two rooms
CreateBend(map, dir, topEntrance, bottomEntrance, corridor);
// Put the exits in the appropriate generic rooms
GenericRoom groomTop = _mapRoomToGenericRooms[roomTop];
GenericRoom groomBottom = _mapRoomToGenericRooms[roomBottom];
corridor.AddExit(groomTop, topEntrance);
corridor.AddExit(groomBottom, bottomEntrance);
groomTop.AddExit(corridor, topEntrance);
groomBottom.AddExit(corridor, bottomEntrance);
// Should we put a door in the top room?
if (_rnd.Next(100) < _pctDoorChance)
{
// Place the door
map[topEntrance].Terrain = TerrainType.Door;
}
// Should we put a door in the bottom room?
if (_rnd.Next(100) < _pctDoorChance)
{
// Place the door
map[bottomEntrance].Terrain = TerrainType.Door;
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Combine two generic rooms </summary>
///
/// <remarks> Darrellp, 9/27/2011. </remarks>
///
/// <param name="groom"> The room to be joined to this one. </param>
////////////////////////////////////////////////////////////////////////////////////////////////////
internal void CombineWith(GenericRoom groom)
{
// Clone into a temporary room
GenericRoom roomTemp = new GenericRoom(Layout, Location, Exits);
// Get the new and old locations, sizes
int newLeft = Math.Min(Left, groom.Left);
int newRight = Math.Max(Right, groom.Right);
int newTop = Math.Min(Top, groom.Top);
int newBottom = Math.Max(Bottom, groom.Bottom);
int newHeight = newBottom - newTop + 1;
int newWidth = newRight - newLeft + 1;
// Set our new location
Location = new MapCoordinates(newLeft, newTop);
// Clear our exits
// They'll come back in from the cloned room
Exits = new List <GenericRoom>();
// Allocate a new layout array
Layout = new char[newWidth][];
// For each column
for (int iColumn = 0; iColumn < newWidth; iColumn++)
{
// Allocate the column
Layout[iColumn] = new char[newHeight];
}
// Move the clone's data into ourself
TransferTerrain(roomTemp);
// Move the other room's data into ourself
TransferTerrain(groom);
// Update pointers for any rooms which connected to groom
UpdateConnectedRoomsToPointToUs(groom);
// Set up our exit map
MapExitsToRooms();
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Transfer terrain. </summary>
///
/// <remarks> This only affects the _layout field. Darrellp, 9/27/2011. </remarks>
///
/// <param name="groom"> The room to be joined to this one. </param>
////////////////////////////////////////////////////////////////////////////////////////////////////
private void TransferTerrain(GenericRoom groom)
{
// Locals
int mapColumn;
int localColumn;
// For each original column
for (localColumn = 0, mapColumn = groom.Left; localColumn < groom.Width; localColumn++, mapColumn++)
{
// More locals
int mapRow;
int localRow;
// For each original row
for (localRow = 0, mapRow = groom.Top; localRow < groom.Height; localRow++, mapRow++)
{
// Get the terrain for this location
char character = groom.Layout[localColumn][localRow];
// Is this an exit?
if (character >= 'a' && character <= 'z')
{
// Add it to our list of exits
int iRoom = (char)(character - 'a');
GenericRoom groomExitedTo = groom.Exits[iRoom];
character = AddExit(groomExitedTo, new MapCoordinates(mapColumn, mapRow));
}
// Is it non-null?
if (character != '\0')
{
// Place the new terrain
this[mapColumn, mapRow] = character;
}
}
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Adds a room to our room list. </summary>
///
/// <remarks> Darrellp, 10/6/2011. </remarks>
///
/// <param name="groom"> The generic room to be added. </param>
///
/// <returns> true if the room has already been added, false if it hasn't. </returns>
////////////////////////////////////////////////////////////////////////////////////////////////////
public bool AddRoom(GenericRoom groom)
{
return(Rooms.Add(groom));
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Excavate between connected rooms in a grid connection. </summary>
///
/// <remarks> Variables named from the perspective that dir is vertical Darrellp, 9/19/2011. </remarks>
///
/// <param name="map"> The map to be excavated. </param>
/// <param name="dir"> The direction the merge will take place in. </param>
/// <param name="topEntrance"> The small coordinate entrance. </param>
/// <param name="bottomEntrance"> The large coordinate entrance. </param>
/// <param name="groom"> The room being prepared for this corridor. </param>
////////////////////////////////////////////////////////////////////////////////////////////////////
private void CreateBend(IRoomsMap map, Dir dir, MapCoordinates topEntrance, MapCoordinates bottomEntrance, GenericRoom groom)
{
// locals
Dir otherDir = MapCoordinates.OtherDirection(dir);
int startRow = topEntrance[dir];
int endRow = bottomEntrance[dir];
int startColumn = topEntrance[otherDir];
int endColumn = bottomEntrance[otherDir];
// Determine bend location
int bendRow = _rnd.Next(startRow + 1, endRow);
// Excavate the bend between the two rooms
ExcavateBend(map, startColumn, endColumn, startRow, endRow, bendRow, groom, dir);
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Excavate bend. </summary>
///
/// <remarks>
/// "Perpindicular" here refers to the coordinate perpindicular to the orientation of the two
/// rooms. If the rooms are oriented vertically then perpindicular refers to the horizontal (x)
/// coordinate wo that startPerpindicular is the starting column. If they're oriented vertically,
/// startPerpindicular is the starting row. Parallel refers to the coordinate parallel to the
/// orientation. Bend is always in the perpindicular coordinate. Unidirectional but named as
/// though dir was vertical. Darrellp, 9/18/2011.
/// </remarks>
///
/// <param name="map"> The map to be excavated. </param>
/// <param name="startColumn"> The start perpindicular. </param>
/// <param name="endColumn"> The end perpindicular. </param>
/// <param name="startRow"> The start parallel. </param>
/// <param name="endRow"> The end parallel. </param>
/// <param name="bend"> The bend coordinate. </param>
/// <param name="groom"> The room being prepared for this corridor. </param>
/// <param name="dir"> The direction the bend is supposed to run. </param>
////////////////////////////////////////////////////////////////////////////////////////////////////
private static void ExcavateBend(IRoomsMap map, int startColumn, int endColumn, int startRow, int endRow, int bend, GenericRoom groom, Dir dir)
{
Dir otherDir = MapCoordinates.OtherDirection(dir);
// Create corridor to the bend
ExcavateCorridorRun(map, startColumn, startRow, bend, groom, dir);
// Create the cross corridor at the bend
ExcavateCorridorRun(map, bend, startColumn, endColumn, groom, otherDir);
// Create the corridor from the bend to the destination
ExcavateCorridorRun(map, endColumn, bend, endRow, groom, dir);
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Excavate a straight corridor run either vertically or horizontally. </summary>
///
/// <remarks>
/// Excavates from (startParallel, perpindicular) to (endParallel, perpindicular) inclusive if
/// fVertical. If not fVertical, swap coordinates. start and end parallel coordinates do not
/// have to be in numerical order. This is a unidirectional function but, as usual, names are
/// named as though dir was vertical. Darrellp, 9/19/2011.
/// </remarks>
///
/// <param name="map"> The map to be excavated. </param>
/// <param name="column"> The perpindicular coordinate. </param>
/// <param name="endRow1"> The starting parallel coordinate. </param>
/// <param name="endRow2"> The ending parallel coordinate. </param>
/// <param name="groom"> The room being prepared for this corridor. </param>
/// <param name="dir"> The direction of the corridor. </param>
////////////////////////////////////////////////////////////////////////////////////////////////////
private static void ExcavateCorridorRun(IRoomsMap map, int column, int endRow1, int endRow2, GenericRoom groom, Dir dir)
{
// We work with small and large coords rather than start and end
int startRow = Math.Min(endRow1, endRow2);
int endRow = Math.Max(endRow1, endRow2);
char floorChar = TerrainFactory.TerrainToChar(TerrainType.Floor);
// Create the starting location
MapCoordinates currentLocation = MapCoordinates.CreateUndirectional(startRow, column, dir);
// For each row in the run
for (int iRow = startRow; iRow <= endRow; iRow++)
{
// Place our terrain
currentLocation[dir] = iRow;
map[currentLocation].Terrain = TerrainType.Floor;
groom[currentLocation] = floorChar;
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Excavate a merge between two rooms. </summary>
///
/// <remarks>
/// Names are named as though dir was vertical and dirOther horizontal. Darrellp, 9/22/2011.
/// </remarks>
///
/// <param name="map"> The map. </param>
/// <param name="topRoom"> The top room. </param>
/// <param name="bottomRoom"> The bottom room. </param>
/// <param name="dir"> The dir. </param>
////////////////////////////////////////////////////////////////////////////////////////////////////
private void ExcavateMerge(IRoomsMap map, RectangularRoom topRoom, RectangularRoom bottomRoom, Dir dir)
{
// Get the opposite direction
Dir dirOther = MapCoordinates.OtherDirection(dir);
// Are the rooms unmergable?
if (!CheckOverlap(topRoom, bottomRoom, dirOther))
{
// Should have caught this in MergeTwoRooms - throw exception
throw new RogueException("Non-overlapping rooms made it to ExcavateMerge");
}
// Get the appropriate coordinates
int topRoomsLeft = topRoom.Location[dirOther];
int topRoomsRight = topRoomsLeft + topRoom.Size(dirOther) - 1;
int bottomRoomsLeft = bottomRoom.Location[dirOther];
int bottomRoomsRight = bottomRoomsLeft + bottomRoom.Size(dirOther) - 1;
// Get the high and low points of the overlap
int overlapLeft = Math.Max(topRoomsLeft, bottomRoomsLeft) + 1;
int overlapRight = Math.Min(topRoomsRight, bottomRoomsRight) - 1;
// Create our new merged generic room
GenericRoom groomTop = _mapRoomToGenericRooms[topRoom];
GenericRoom groomBottom = _mapRoomToGenericRooms[bottomRoom];
groomTop.CombineWith(groomBottom);
// For each column in the grid
foreach (RectangularRoom[] roomColumn in _rooms)
{
// For each row in the grid
for (int iRow = 0; iRow < _rooms[0].Length; iRow++)
{
// Get the rect room at that spot
RectangularRoom room = roomColumn[iRow];
// Is it mapped to our defunct bottom room?
if (_mapRoomToGenericRooms[room] == groomBottom)
{
// Map it to our shiny new top room
_mapRoomToGenericRooms[room] = groomTop;
}
}
}
// Get the location we're going to start the clearing at
int topRoomsBottom = topRoom.Location[dir] + topRoom.Size(dir) - 1;
MapCoordinates currentLocation = MapCoordinates.CreateUndirectional(topRoomsBottom, overlapLeft, dir);
char floorChar = TerrainFactory.TerrainToChar(TerrainType.Floor);
// For each spot along the overlap
for (int iCol = overlapLeft; iCol <= overlapRight; iCol++)
{
// Clear out the two walls of the abutting rooms
currentLocation[dirOther] = iCol;
map[currentLocation].Terrain = TerrainType.Floor;
groomTop[currentLocation] = floorChar;
currentLocation[dir] = topRoomsBottom + 1;
map[currentLocation].Terrain = TerrainType.Floor;
groomTop[currentLocation] = floorChar;
currentLocation[dir] = topRoomsBottom;
}
Debug.Assert(groomBottom == groomTop || !_mapRoomToGenericRooms.ContainsValue(groomBottom));
}