public bool TryAddRoom(Room room)
{
if (!IntersectsExistingRooms(room))
{
_rooms.Add(room);
GenerateTilesForRoom(room, _tiles, _tileDim);
return true;
}
return false;
}
static void GenerateTilesForRoom(Room room, Tile[] ts, int tileDim)
{
int x = room.X;
int y = room.Y;
int w = room.W;
int h = room.H;
for (int xi = x; xi <= x + w; xi++)
{
for (int yi = y; yi <= y + h; yi++)
{
int num = yi * tileDim + xi;
ts[num].Type = TileType.Room;
}
}
}
bool IntersectsExistingRooms(Room room)
{
// manual foreach is a lot faster than Any here
foreach (var r in _rooms)
{
if (r.Intersects(room))
return true;
}
return false;
}
public bool Intersects(Room otherRoom)
{
var roomDoesntIntersect =
(X + W + 1) < otherRoom.X || X > (otherRoom.X + otherRoom.W + 1) ||
(Y + H + 1) < otherRoom.Y || Y > (otherRoom.Y + otherRoom.H + 1);
return !roomDoesntIntersect;
}
public IEnumerable<Level> MakeLevels(LevelSettings settings)
{
while(true)
{
var lev = new Level(settings.MaxRooms, settings.TileDim);
int roomCount = 0;
for (int attempt = 0; attempt < settings.RoomInsertionAttempts; attempt++)
{
var x = _rand.Next() % settings.TileDim;
var y = _rand.Next() % settings.TileDim;
var w = _rand.Next() % settings.RestWidMax + settings.WidMin;
var h = _rand.Next() % settings.RestWidMax + settings.WidMin;
if (x + w >= settings.TileDim || y + h >= settings.TileDim || x == 0 || y == 0) continue;
var room = new Room{X=x, Y=y, W=w, H=h};
if (lev.TryAddRoom(room))
{
if (++roomCount == settings.MaxRooms)
break;
}
}
yield return lev;
}
}
