private void TryLinkRooms()
{
var xdoor = 0;
var ydoor = 0;
var MaxAttempts = numberRooms * 20;
while (!cancellinking)
{
cancelcounter++;
var corridor = FindUnusedDoorinRandomRoom(ref xdoor, ref ydoor);
if (corridor != null)
{
starterRoom = corridor.StartRoom;
if (corridor.GrowCorridor(ref xdoor, ref ydoor))
{
return;
}
}
if (cancelcounter > MaxAttempts)
{
cancellinking = true;
}
}
}
// try to grow corridor
public bool GrowCorridor(ref int xdoor, ref int ydoor)
{
var done = false;
var x = xdoor;
var y = ydoor;
var seglen = Atts.R.Next(4) + 3;
var iDir = PickDirection(x, y);
if (iDir == -1)
{
return(false);
}
var xOffset = Atts.OffSetDirX[iDir];
var yOffset = Atts.OffSetDirY[iDir];
while (!done)
{
x += xOffset;
y += yOffset;
if (!Atts.IsOnMap(x, y))
{
RemoveFailedCorridor(xdoor, ydoor);
return(false);
}
var locType = cmap[x, y].LocationType;
if (locType == Atts.LocationType.Empty)
{
cmap[x, y].LocationType = Atts.LocationType.TempCorridor;
if (seglen > 0)
{
seglen--;
}
else
if (cmap[x, y].GridLine) // Only change direction where
{
iDir = NewDirection(iDir);
xOffset = Atts.OffSetDirX[iDir];
yOffset = Atts.OffSetDirY[iDir];
seglen = Atts.R.Next(4) + 3;
}
continue;
}
// hit something - door or Corridor
if (locType == Atts.LocationType.Corridor)
{
var metCorridor = cmap[x, y].Corridor;
if (IsNewCorridor(metCorridor))
{
MeetANewCorridor(metCorridor);
done = true;
}
else
{
RemoveFailedCorridor(xdoor, ydoor);
return(false);
}
}
if (locType == Atts.LocationType.DoorPoint)
{
var room = cmap[x, y].aRoom;
if (!room.IsSameRoom(StartRoom) && !room.ConnectedRooms.Contains(StartRoom) &&
room.HasSpareExit())
{
EndRoom = room;
room.AddExit(this, Atts.FromDir[iDir]);
LinkTwoRooms(room, StartRoom);
done = true;
}
else
{
RemoveFailedCorridor(xdoor, ydoor);
return(false);
}
}
/* if (locType == Atts.LocationType.WallPoint)
* {
* RemoveFailedCorridor(xdoor, ydoor);
* return false;
* }*/
}
// Finalize the TempDoors and TempCorridors
if (cmap[xdoor, ydoor].LocationType == Atts.LocationType.TempDoor)
{
cmap[xdoor, ydoor].LocationType = Atts.LocationType.DoorPoint;
}
for (var yp = 0; yp < Atts.MaxLocsY; yp++)
{
for (var xp = 0; xp < Atts.MaxLocsX; xp++)
{
if (Atts.IsOnMap(xp, yp) && cmap[xp, yp].LocationType == Atts.LocationType.TempCorridor)
{
cmap[xp, yp].LocationType = Atts.LocationType.Corridor;
cmap[xp, yp].Corridor = this;
}
}
}
return(true);
}
// Height comparison is also done because Top, Left for a rectangular room is different to Top,Left for a circular room
// Circular rooms have height 0.
public bool IsSameRoom(DungeonRoom other)
{
return(Top == other.Top && Left == other.Left && Height == other.Height);
}
private void LinkTwoRooms(DungeonRoom room1, DungeonRoom room2)
{
room1.ConnectedRooms.UnionWith(room2.ConnectedRooms);
room2.ConnectedRooms.UnionWith(room1.ConnectedRooms);
}