/// <summary>
/// Returns a list of wall edges with definite 4-directional normals
/// </summary>
/// <param name="rect"></param>
/// <param name="checkBlock">Determines if this is ground that can be burrowed into.</param>
/// <param name="checkGround">Determines if this is ground that can reach a wall.</param>
/// <returns></returns>
public static List <LocRay4> DetectWalls(Rect rect, Grid.LocTest checkBlock, Grid.LocTest checkGround)
{
if (checkBlock == null)
{
throw new ArgumentNullException(nameof(checkBlock));
}
List <LocRay4> walls = new List <LocRay4>();
for (int xx = rect.X; xx < rect.Width; xx++)
{
for (int yy = rect.Y; yy < rect.Height; yy++)
{
Loc testLoc = new Loc(xx, yy);
if (checkBlock(testLoc))
{
LocRay4 ray = GetWallDir(testLoc, checkBlock, checkGround);
if (ray.Dir != Dir4.None)
{
walls.Add(ray);
}
}
}
}
return(walls);
}
public static void UnsafeAddHall(LocRay4 locRay, GridPlan floorPlan, IPermissiveRoomGen hallGen, ComponentCollection components)
{
floorPlan.SetHall(locRay, hallGen, components.Clone());
GenContextDebug.DebugProgress("Hall");
if (floorPlan.GetRoomPlan(locRay.Loc) == null || floorPlan.GetRoomPlan(locRay.Traverse(1)) == null)
{
floorPlan.Clear();
throw new InvalidOperationException("Can't create a hall without rooms to connect!");
}
}
/// <summary>
/// Sets the RoomGen found in the specified hall.
/// </summary>
/// <param name="locRay">The location of the room + the direction of the connecting hall relative to the room.</param>
/// <param name="hallGen"></param>
/// <param name="components">components to include in the hall</param>
public void SetHall(LocRay4 locRay, IPermissiveRoomGen hallGen, ComponentCollection components)
{
if (locRay.Dir == Dir4.None)
{
throw new ArgumentException("Invalid direction.");
}
else if (!locRay.Dir.Validate())
{
throw new ArgumentOutOfRangeException("Invalid enum value.");
}
GridHallPlan plan = null;
if (hallGen != null)
{
plan = new GridHallPlan((IPermissiveRoomGen)hallGen.Copy(), components);
}
switch (locRay.Dir)
{
case Dir4.Down:
if (locRay.Loc.Y < this.GridHeight - 1)
{
this.VHalls[locRay.Loc.X][locRay.Loc.Y].SetHall(plan);
}
break;
case Dir4.Left:
if (locRay.Loc.X > 0)
{
this.HHalls[locRay.Loc.X - 1][locRay.Loc.Y].SetHall(plan);
}
break;
case Dir4.Up:
if (locRay.Loc.Y > 0)
{
this.VHalls[locRay.Loc.X][locRay.Loc.Y - 1].SetHall(plan);
}
break;
case Dir4.Right:
if (locRay.Loc.X < this.GridWidth - 1)
{
this.HHalls[locRay.Loc.X][locRay.Loc.Y].SetHall(plan);
}
break;
case Dir4.None:
throw new ArgumentException($"No hall for dir {nameof(Dir4.None)}");
default:
throw new ArgumentOutOfRangeException(nameof(locRay.Dir), "Invalid enum value.");
}
}
public int GetRoomNum(LocRay4 locRay)
{
GridHallPlan hall = this.GetHall(locRay);
if (hall != null)
{
Loc moveLoc = locRay.Traverse(1);
return(this.Rooms[moveLoc.X][moveLoc.Y]);
}
return(-1);
}
public virtual LocRay4 ChooseRoomExpansion(IRandom rand, GridPlan floorPlan, bool branch)
{
List <LocRay4> availableRays = GetPossibleExpansions(floorPlan, branch);
if (availableRays.Count == 0)
{
return(new LocRay4(Dir4.None));
}
LocRay4 chosenRay = availableRays[rand.Next(availableRays.Count)];
return(chosenRay);
}
public static void SafeAddHall(LocRay4 locRay, GridPlan floorPlan, IPermissiveRoomGen hallGen, IRoomGen roomGen, bool preferHall = false)
{
floorPlan.SetHall(locRay, hallGen);
if (floorPlan.GetRoomPlan(locRay.Loc) == null)
{
floorPlan.AddRoom(locRay.Loc, roomGen, false, preferHall);
}
Loc dest = locRay.Traverse(1);
if (floorPlan.GetRoomPlan(dest) == null)
{
floorPlan.AddRoom(dest, roomGen, false, preferHall);
}
}
protected bool ExpandPath(IRandom rand, GridPlan floorPlan, bool branch)
{
LocRay4 chosenRay = this.ChooseRoomExpansion(rand, floorPlan, branch);
if (chosenRay.Dir == Dir4.None)
{
return(false);
}
floorPlan.SetHall(chosenRay, this.GenericHalls.Pick(rand));
floorPlan.AddRoom(chosenRay.Traverse(1), this.GenericRooms.Pick(rand));
GenContextDebug.DebugProgress(branch ? "Branched Path" : "Extended Path");
return(true);
}
/// <summary>
/// Returns a list of wall edges with definite 4-directional normals, connected to a start position
/// </summary>
/// <param name="start"></param>
/// <param name="rect"></param>
/// <param name="checkBlock">Determines if this is ground that can be burrowed into.</param>
/// <param name="checkGround">Determines if this is ground that can reach a wall.</param>
/// <returns></returns>
public static List <LocRay4> DetectWalls(Loc start, Rect rect, Grid.LocTest checkBlock, Grid.LocTest checkGround)
{
if (checkBlock == null)
{
throw new ArgumentNullException(nameof(checkBlock));
}
if (checkGround == null)
{
throw new ArgumentNullException(nameof(checkGround));
}
bool[][] checkGrid = new bool[rect.Width][];
bool[][] fillGrid = new bool[rect.Width][];
for (int xx = 0; xx < rect.Width; xx++)
{
checkGrid[xx] = new bool[rect.Height];
fillGrid[xx] = new bool[rect.Height];
}
List <LocRay4> walls = new List <LocRay4>();
// scan and find solely-facing walls
// cache already-checked walls since flood fill occasionally checks twice
Grid.FloodFill(
rect,
(Loc testLoc) =>
{
if (fillGrid[testLoc.X][testLoc.Y])
{
return(true);
}
if (!checkGrid[testLoc.X][testLoc.Y] && checkBlock(testLoc))
{
LocRay4 ray = GetWallDir(testLoc, checkBlock, checkGround);
if (ray.Dir != Dir4.None)
{
walls.Add(ray);
}
}
checkGrid[testLoc.X][testLoc.Y] = true;
return(!checkGround(testLoc));
},
(Loc testLoc) => true,
(Loc fillLoc) => fillGrid[fillLoc.X][fillLoc.Y] = true,
start);
return(walls);
}
public static void SafeAddHall(LocRay4 locRay, GridPlan floorPlan, IPermissiveRoomGen hallGen, IRoomGen roomGen, ComponentCollection roomComponents, ComponentCollection hallComponents, bool preferHall = false)
{
floorPlan.SetHall(locRay, hallGen, hallComponents.Clone());
ComponentCollection collection = preferHall ? hallComponents : roomComponents;
if (floorPlan.GetRoomPlan(locRay.Loc) == null)
{
floorPlan.AddRoom(locRay.Loc, roomGen, collection.Clone(), preferHall);
}
Loc dest = locRay.Traverse(1);
if (floorPlan.GetRoomPlan(dest) == null)
{
floorPlan.AddRoom(dest, roomGen, collection.Clone(), preferHall);
}
}
/// <summary>
/// Returns the RoomGen found in the specified hall.
/// </summary>
/// <param name="locRay">The location of the room + the direction of the connecting hall relative to the room.</param>
/// <returns></returns>
public GridHallPlan GetHall(LocRay4 locRay)
{
switch (locRay.Dir)
{
case Dir4.Down:
if (locRay.Loc.Y < this.GridHeight - 1)
{
return(this.VHalls[locRay.Loc.X][locRay.Loc.Y].MainHall);
}
break;
case Dir4.Left:
if (locRay.Loc.X > 0)
{
return(this.HHalls[locRay.Loc.X - 1][locRay.Loc.Y].MainHall);
}
break;
case Dir4.Up:
if (locRay.Loc.Y > 0)
{
return(this.VHalls[locRay.Loc.X][locRay.Loc.Y - 1].MainHall);
}
break;
case Dir4.Right:
if (locRay.Loc.X < this.GridWidth - 1)
{
return(this.HHalls[locRay.Loc.X][locRay.Loc.Y].MainHall);
}
break;
case Dir4.None:
break;
default:
throw new ArgumentOutOfRangeException(nameof(locRay.Dir), "Invalid enum value.");
}
return(null);
}
public override void ApplyToPath(IRandom rand, GridPlan floorPlan)
{
List <LocRay4> endBranches = new List <LocRay4>();
for (int ii = 0; ii < floorPlan.RoomCount; ii++)
{
GridRoomPlan roomPlan = floorPlan.GetRoomPlan(ii);
if (!BaseRoomFilter.PassesAllFilters(roomPlan, this.Filters))
{
continue;
}
if (roomPlan.Bounds.Size == new Loc(1))
{
List <int> adjacents = floorPlan.GetAdjacentRooms(ii);
if (adjacents.Count == 1)
{
endBranches.Add(new LocRay4(roomPlan.Bounds.Start));
}
}
}
List <List <LocRay4> > candBranchPoints = new List <List <LocRay4> >();
for (int nn = 0; nn < endBranches.Count; nn++)
{
LocRay4 chosenBranch = endBranches[nn];
while (chosenBranch.Loc != new Loc(-1))
{
List <LocRay4> connectors = new List <LocRay4>();
List <LocRay4> candBonds = new List <LocRay4>();
foreach (Dir4 dir in DirExt.VALID_DIR4)
{
if (dir != chosenBranch.Dir)
{
if (floorPlan.GetHall(new LocRay4(chosenBranch.Loc, dir)) != null)
{
connectors.Add(new LocRay4(chosenBranch.Loc, dir));
}
else
{
Loc loc = chosenBranch.Loc + dir.GetLoc();
if (Collision.InBounds(floorPlan.GridWidth, floorPlan.GridHeight, loc) &&
floorPlan.GetRoomIndex(loc) > -1)
{
candBonds.Add(new LocRay4(chosenBranch.Loc, dir));
}
}
}
}
if (connectors.Count == 1)
{
if (candBonds.Count > 0)
{
candBranchPoints.Add(candBonds);
chosenBranch = new LocRay4(new Loc(-1));
}
else
{
chosenBranch = new LocRay4(connectors[0].Traverse(1), connectors[0].Dir.Reverse());
}
}
else
{
chosenBranch = new LocRay4(new Loc(-1));
}
}
}
// compute a goal amount of terminals to connect
// this computation ignores the fact that some terminals may be impossible
var randBin = new RandBinomial(candBranchPoints.Count, this.ConnectPercent);
int connectionsLeft = randBin.Pick(rand);
while (candBranchPoints.Count > 0 && connectionsLeft > 0)
{
// choose random point to connect
int randIndex = rand.Next(candBranchPoints.Count);
List <LocRay4> candBonds = candBranchPoints[randIndex];
LocRay4 chosenDir = candBonds[rand.Next(candBonds.Count)];
// connect
floorPlan.SetHall(chosenDir, this.GenericHalls.Pick(rand), this.HallComponents);
candBranchPoints.RemoveAt(randIndex);
GenContextDebug.DebugProgress("Connected Branch");
connectionsLeft--;
// check to see if connection destination was also a candidate,
// counting this as a double if so
for (int ii = candBranchPoints.Count - 1; ii >= 0; ii--)
{
if (candBranchPoints[ii][0].Loc == chosenDir.Traverse(1))
{
candBranchPoints.RemoveAt(ii);
connectionsLeft--;
}
}
}
}