void UpdateHeights(GridDungeonModel model)
{
if (terrain == null || terrain.terrainData == null)
{
return;
}
var rasterizer = new LandscapeDataRasterizer(terrain, groundLevelHeight);
rasterizer.LoadData();
var gridSize = model.Config.GridCellSize;
// Raise the terrain
foreach (var cell in model.Cells)
{
var locationGrid = cell.Bounds.Location;
var location = locationGrid * gridSize;
var size = cell.Bounds.Size * gridSize;
var cellY = location.y + layoutLevelOffset;
rasterizer.DrawCell(location.x, location.z, size.x, size.z, cellY);
}
// Smooth the terrain
ApplySmoothing(model, rasterizer);
rasterizer.SaveData();
}
public static bool AreAdjacentCellsReachable(GridDungeonModel gridModel, int cellIdA, int cellIdB)
{
var cellA = gridModel.GetCell(cellIdA);
var cellB = gridModel.GetCell(cellIdB);
if (cellA == null || cellB == null)
{
return(false);
}
// If any one is a room, make sure we have a door between them
if (cellA.CellType == CellType.Room || cellB.CellType == CellType.Room)
{
if (!gridModel.DoorManager.ContainsDoorBetweenCells(cellIdA, cellIdB))
{
// We don't have a door between them and is blocked by a room wall
return(false);
}
}
// if their height is different, make sure we have a stair between them
if (cellA.Bounds.Location.y != cellB.Bounds.Location.y)
{
if (!gridModel.ContainsStair(cellIdA, cellIdB))
{
// Height difference with no stairs. not reachable
return(false);
}
}
// reachable
return(true);
}
/// <summary>
/// Finds all the nearby tiles that belong to the same cluster
/// </summary>
/// <param name="gridModel"></param>
/// <param name="corridorTileCellId"></param>
/// <returns></returns>
public static int[] GetCellCluster(GridDungeonModel gridModel, int sampleCellId)
{
var clusters = new List <int>();
// Check if we are in a room. Rooms don't need to be clustered as they form a single group
var startCell = gridModel.GetCell(sampleCellId);
if (startCell == null || startCell.CellType == CellType.Room)
{
clusters.Add(sampleCellId);
return(clusters.ToArray());
}
var visited = new HashSet <int>();
var stack = new Stack <int>();
stack.Push(sampleCellId);
while (stack.Count > 0)
{
var topId = stack.Pop();
if (visited.Contains(topId))
{
continue;
}
visited.Add(topId);
var top = gridModel.GetCell(topId);
if (top == null)
{
continue;
}
if (top.CellType == CellType.Unknown || top.CellType == CellType.Room)
{
continue;
}
if (IsCorridor(top.CellType))
{
clusters.Add(topId);
}
// search adjacent cells
foreach (var adjacentId in top.AdjacentCells)
{
// make sure the adjacent cell is reachable
if (AreAdjacentCellsReachable(gridModel, topId, adjacentId))
{
stack.Push(adjacentId);
}
}
}
return(clusters.ToArray());
}
void EmitCornerMarker(DungeonBuilder builder, GridDungeonModel model, IntVector point, string markerName)
{
// Add an empty marker here
var gridSize = model.Config.GridCellSize;
var position = point * gridSize;
position += Vector3.Scale(new Vector3(0.5f, 0, 0.5f), gridSize);
var transform = Matrix4x4.TRS(position, Quaternion.identity, Vector3.one);
builder.EmitMarker(markerName, transform, point, -1);
}
void EmitForPoint(DungeonBuilder builder, GridDungeonModel model, IntVector point)
{
foreach (var config in CornerConfigs)
{
if (ConfigMatches(model, point, config))
{
EmitCornerMarker(builder, model, point, config.markerName);
break;
}
}
}
public GridDungeonModel GetDungeonModelGrid()
{
var model = base.GetDungeonModel();
gridModel = model as GridDungeonModel;
if (gridModel == null)
{
Debug.LogWarning("Invalid dungeon model type for this type of paint tool. Expected DungeonModelGrid. Received:" + (model != null ? model.GetType().ToString() : "null"));
}
return(gridModel);
}
public static void GetAdjacentCorridors(GridDungeonModel gridModel, int startCellId, ref List <int> OutConnectedCorridors, ref List <int> OutConnectedRooms)
{
OutConnectedCorridors.Clear();
OutConnectedRooms.Clear();
// search all nearby cells till we reach a dead end (or a room)
var visited = new HashSet <int>();
var stack = new Stack <int>();
stack.Push(startCellId);
while (stack.Count > 0)
{
var topId = stack.Pop();
if (visited.Contains(topId))
{
continue;
}
visited.Add(topId);
var top = gridModel.GetCell(topId);
if (top == null)
{
continue;
}
if (top.CellType == CellType.Unknown)
{
continue;
}
if (top.CellType == CellType.Room && top.Id != startCellId)
{
OutConnectedRooms.Add(topId);
continue;
}
if (IsCorridor(top.CellType))
{
OutConnectedCorridors.Add(topId);
}
// search adjacent cells
foreach (var adjacentId in top.AdjacentCells)
{
// make sure the adjacent cell is reachable
if (AreAdjacentCellsReachable(gridModel, topId, adjacentId))
{
stack.Push(adjacentId);
}
}
}
}
protected virtual void ApplySmoothing(GridDungeonModel model, LandscapeDataRasterizer rasterizer)
{
var gridSize = model.Config.GridCellSize;
foreach (var cell in model.Cells)
{
var locationGrid = cell.Bounds.Location;
var location = locationGrid * gridSize;
var size = cell.Bounds.Size * gridSize;
var cellY = location.y + layoutLevelOffset;
var curve = (cell.CellType == CellType.Room) ? roomElevationCurve : corridorElevationCurve;
rasterizer.SmoothCell(location.x, location.z, size.x, size.z, cellY, smoothingDistance, curve);
}
}
public static Cell[] FindFurthestRooms(GridDungeonModel model)
{
var bestLength = 0;
var result = new Cell[2];
foreach (var startCell in model.Cells)
{
var queue = new Queue <LongestPathBFSData>();
var visited = new HashSet <int>();
var startData = new LongestPathBFSData {
cell = startCell, length = 0
};
LongestPathBFSData endData = startData;
queue.Enqueue(startData);
while (queue.Count > 0)
{
var front = queue.Dequeue();
visited.Add(front.cell.Id);
foreach (var childId in front.cell.FixedRoomConnections)
{
if (visited.Contains(childId))
{
continue;
}
var child = model.GetCell(childId);
var childData = new LongestPathBFSData {
cell = child, length = front.length + 1
};
queue.Enqueue(childData);
}
if (queue.Count == 0)
{
endData = front;
}
}
if (endData.length > bestLength)
{
bestLength = endData.length;
result[0] = startData.cell;
result[1] = endData.cell;
}
}
return(result);
}
void UpdateTerrainTextures(GridDungeonModel model)
{
if (terrain == null || terrain.terrainData == null)
{
return;
}
var numTextures = textures.Length;
var data = terrain.terrainData;
var map = new float[data.alphamapWidth, data.alphamapHeight, numTextures];
UpdateBaseTexture(model, map);
UpdateCliffTexture(map);
data.SetAlphamaps(0, 0, map);
}
CellType GetCellTypeFromId(int cellId, GridDungeonModel model)
{
if (!model.CellLookup.ContainsKey(cellId))
{
return(CellType.Unknown);
}
var cell = model.CellLookup[cellId];
if (cell == null)
{
return(CellType.Unknown);
}
if (cell.CellType == CellType.CorridorPadding)
{
return(CellType.Corridor);
}
return(cell.CellType);
}
public static void DrawAdjacentCells(Cell cell, GridDungeonModel model, Color color, bool mode2D)
{
if (model == null)
{
return;
}
var gridConfig = model.Config as GridDungeonConfig;
if (gridConfig == null)
{
return;
}
foreach (var adjacentId in cell.AdjacentCells)
{
var adjacentCell = model.GetCell(adjacentId);
if (adjacentCell == null)
{
return;
}
var centerA = Vector3.Scale(cell.Bounds.CenterF(), gridConfig.GridCellSize);
var centerB = Vector3.Scale(adjacentCell.Bounds.CenterF(), gridConfig.GridCellSize);
DebugDrawUtils.DrawLine(centerA, centerB, color, 0, false, mode2D);
}
foreach (var adjacentId in cell.FixedRoomConnections)
{
var adjacentCell = model.GetCell(adjacentId);
if (adjacentCell == null)
{
return;
}
var centerA = Vector3.Scale(cell.Bounds.CenterF(), gridConfig.GridCellSize) + new Vector3(0, 0.2f, 0);
var centerB = Vector3.Scale(adjacentCell.Bounds.CenterF(), gridConfig.GridCellSize) + new Vector3(0, 0.2f, 0);
DebugDrawUtils.DrawLine(centerA, centerB, Color.red, 0, false, mode2D);
}
}
bool ConfigMatches(GridDungeonModel model, IntVector point, CellSpatialConfig config)
{
var neighbors = config.neighborConfig;
for (int i = 0; i < neighbors.Length; i++)
{
var code = neighbors[i];
if (code == 0)
{
// Don't care about this cell
continue;
}
var dx = i % 3;
var dz = i / 3;
dx--; dz--; // bring to -1..1 range (from previous 0..2)
dz *= -1;
var x = point.x + dx;
var z = point.z + dz;
var cellInfo = model.GetGridCellLookup(x, z);
bool empty = cellInfo.CellType == CellType.Unknown;
if (code == 1 && empty)
{
// We were expecting a non-empty space here, but it is empty
return(false);
}
else if (code == 2 && !empty)
{
// We were expecting a empty space here, but it is not empty
return(false);
}
}
// Matches, all tests have passed
return(true);
}
void BuildTerrain(GridDungeonModel model)
{
SetupTextures();
UpdateHeights(model);
UpdateTerrainTextures(model);
}
void UpdateBaseTexture(GridDungeonModel model, float[,,] map)
{
if (terrain == null)
{
return;
}
int fillIndex = GetTextureIndex(LandscapeTextureType.Fill);
if (fillIndex < 0)
{
return;
}
var data = terrain.terrainData;
// Fill up the entire space with the fill texture
for (var y = 0; y < data.alphamapHeight; y++)
{
for (var x = 0; x < data.alphamapWidth; x++)
{
for (int t = 0; t < textures.Length; t++)
{
var ratio = (t == fillIndex) ? 1 : 0;
map[y, x, t] = ratio;
}
}
}
int corridorIndex = GetTextureIndex(LandscapeTextureType.Corridor);
int roomIndex = GetTextureIndex(LandscapeTextureType.Room);
if (roomIndex < 0 && corridorIndex < 0)
{
// Both corridor and room textures were not provided. Fill them up with the fill index
roomIndex = fillIndex;
corridorIndex = fillIndex;
}
else if (roomIndex < 0)
{
// Use the same texture for the room used by the corridor
roomIndex = corridorIndex;
}
else if (corridorIndex < 0)
{
// Use the same texture for the corridor used by the room
corridorIndex = roomIndex;
}
// Apply the room/corridor texture
{
var gridSize = model.Config.GridCellSize;
var roomMap = new float[map.GetLength(0), map.GetLength(1)];
var corridorMap = new float[map.GetLength(0), map.GetLength(1)];
foreach (var cell in model.Cells)
{
var bounds = cell.Bounds;
var locationGrid = bounds.Location;
var location = locationGrid * gridSize;
var size = bounds.Size * gridSize;
int gx1, gy1, gx2, gy2;
LandscapeDataRasterizer.WorldToTerrainTextureCoord(terrain, location.x, location.z, out gx1, out gy1);
LandscapeDataRasterizer.WorldToTerrainTextureCoord(terrain, location.x + size.x, location.z + size.z, out gx2, out gy2);
for (var gx = gx1; gx <= gx2; gx++)
{
for (var gy = gy1; gy <= gy2; gy++)
{
if (cell.CellType == CellType.Unknown)
{
continue;
}
if (cell.CellType == CellType.Room)
{
roomMap[gy, gx] = 1;
}
else
{
corridorMap[gy, gx] = 1;
}
}
}
}
// Blur the layout data
var filter = new BlurFilter(roadBlurDistance);
roomMap = filter.ApplyFilter(roomMap);
corridorMap = filter.ApplyFilter(corridorMap);
// Fill up the inner region with corridor index
for (var y = 0; y < data.alphamapHeight; y++)
{
for (var x = 0; x < data.alphamapWidth; x++)
{
bool corridor = (corridorMap[y, x] > corridorBlurThreshold);
if (corridor)
{
map[y, x, fillIndex] = 0;
map[y, x, roomIndex] = 0;
map[y, x, corridorIndex] = 1;
}
bool room = (roomMap[y, x] > roomBlurThreshold);
if (room)
{
map[y, x, fillIndex] = 0;
map[y, x, corridorIndex] = 0;
map[y, x, roomIndex] = 1;
}
}
}
}
}