public Room Generate(Random random, Area area)
{
if (_roomCount >= MaxRooms)
{
return null;
}
// Don't place the room on the area's edge.
// This will keep rooms from being adjacent to each other.
var placeableBounds = area.Bounds.Inflate(-1);
var width = random.Next(MinWidth, placeableBounds.Width + 1);
var height = random.Next(MinHeight, placeableBounds.Height + 1);
// Find a place in the area to put the room.
while (true)
{
var x = random.Next(placeableBounds.Left, placeableBounds.Right - width + 1 + 1);
var y = random.Next(placeableBounds.Top, placeableBounds.Bottom - height + 1 + 1);
var roomBounds = new RectI(x, y, width, height);
if (placeableBounds.Contains(roomBounds))
{
_roomCount++;
return new Room(random, roomBounds);
}
}
}
private void RenderRooms(Chunk chunk, Area area, IProgress<string> progress)
{
if (area.Room != null)
{
area.Room.Render(this, chunk, _floorId, _wallId);
}
if (area.SubArea1 != null)
{
RenderRooms(chunk, area.SubArea1, progress);
}
if (area.SubArea2 != null)
{
RenderRooms(chunk, area.SubArea2, progress);
}
}
private void RenderCorridors(Chunk chunk, Area area, IProgress<string> progress)
{
if (area.SubArea1 != null)
{
RenderCorridors(chunk, area.SubArea1, progress);
}
if (area.SubArea2 != null)
{
RenderCorridors(chunk, area.SubArea2, progress);
}
if ((area.SubArea1 != null) && (area.SubArea2 != null))
{
var room1 = area.SubArea1.GetConnectableRoom();
var room2 = area.SubArea2.GetConnectableRoom();
ConnectRooms(chunk, room1, room2, progress);
}
}
private IEnumerable<Room> CollectRooms(Area area)
{
var rooms = new List<Room>();
if (area.Room != null)
{
yield return area.Room;
}
if (area.SubArea1 != null)
{
foreach (var room in CollectRooms(area.SubArea1))
{
yield return room;
}
}
if (area.SubArea2 != null)
{
foreach (var room in CollectRooms(area.SubArea2))
{
yield return room;
}
}
yield break;
}
private void DecorateWithDoors(Chunk chunk, Area area, IProgress<string> progress)
{
// TODO: This is causing rooms to be disconnected in some cases (when rooms are adjacent).
foreach (var room in CollectRooms(area))
{
// Check the room bounds places to put doors, ignoring the corners.
// This will also make sure that doors aren't placed directly next to eachother.
for (var row = room.Bounds.Top + 1; row <= room.Bounds.Bottom - 1; row++)
{
if (!room.HasWestDoor)
{
if (chunk[ChunkLayer.Blocking, room.Bounds.Left - 1, row] == 0)
{
if ((chunk[ChunkLayer.Blocking, room.Bounds.Left, row - 1] == _wallId) &&
(chunk[ChunkLayer.Blocking, room.Bounds.Left, row + 1] == _wallId))
{
chunk[ChunkLayer.Blocking, room.Bounds.Left, row] = _doorId;
room.HasWestDoor = true;
}
}
}
if (!room.HasEastDoor)
{
if (chunk[ChunkLayer.Blocking, room.Bounds.Right + 1, row] == 0)
{
if ((chunk[ChunkLayer.Blocking, room.Bounds.Right, row - 1] == _wallId) &&
(chunk[ChunkLayer.Blocking, room.Bounds.Right, row + 1] == _wallId))
{
chunk[ChunkLayer.Blocking, room.Bounds.Right, row] = _doorId;
room.HasEastDoor = true;
}
}
}
}
for (var column = room.Bounds.Left + 1; column <= room.Bounds.Right - 1; column++)
{
if (!room.HasNorthDoor)
{
if (chunk[ChunkLayer.Blocking, column, room.Bounds.Top - 1] == 0)
{
if ((chunk[ChunkLayer.Blocking, column - 1, room.Bounds.Top] == _wallId) &&
(chunk[ChunkLayer.Blocking, column + 1, room.Bounds.Top] == _wallId))
{
chunk[ChunkLayer.Blocking, column, room.Bounds.Top] = _doorId;
room.HasNorthDoor = true;
}
}
}
if (!room.HasSouthDoor)
{
if (chunk[ChunkLayer.Blocking, column, room.Bounds.Bottom + 1] == 0)
{
if ((chunk[ChunkLayer.Blocking, column - 1, room.Bounds.Bottom] == _wallId) &&
(chunk[ChunkLayer.Blocking, column + 1, room.Bounds.Bottom] == _wallId))
{
chunk[ChunkLayer.Blocking, column, room.Bounds.Bottom] = _doorId;
room.HasSouthDoor = true;
}
}
}
}
}
}