Ejemplo n.º 1
0
        public LevelWallVertexBuffer(VertexPositionTexture[] wallVertices, VertexPositionTexture[] wallEdgeVertices, Texture2D wallTexture, Texture2D edgeTexture, Color color)
        {
            this.wallVertices = LevelRenderer.GetColoredVertices(wallVertices, color);
            WallBuffer        = new VertexBuffer(GameMain.Instance.GraphicsDevice, VertexPositionColorTexture.VertexDeclaration, wallVertices.Length, BufferUsage.WriteOnly);
            WallBuffer.SetData(this.wallVertices);
            WallTexture = wallTexture;

            this.wallEdgeVertices = LevelRenderer.GetColoredVertices(wallEdgeVertices, color);
            WallEdgeBuffer        = new VertexBuffer(GameMain.Instance.GraphicsDevice, VertexPositionColorTexture.VertexDeclaration, wallEdgeVertices.Length, BufferUsage.WriteOnly);
            WallEdgeBuffer.SetData(this.wallEdgeVertices);
            EdgeTexture = edgeTexture;
        }
Ejemplo n.º 2
0
        public void Append(VertexPositionTexture[] wallVertices, VertexPositionTexture[] wallEdgeVertices, Color color)
        {
            WallBuffer.Dispose();
            WallBuffer = new VertexBuffer(GameMain.Instance.GraphicsDevice, VertexPositionColorTexture.VertexDeclaration, this.wallVertices.Length + wallVertices.Length, BufferUsage.WriteOnly);
            int originalWallVertexCount = this.wallVertices.Length;

            Array.Resize(ref this.wallVertices, originalWallVertexCount + wallVertices.Length);
            Array.Copy(LevelRenderer.GetColoredVertices(wallVertices, color), 0, this.wallVertices, originalWallVertexCount, wallVertices.Length);
            WallBuffer.SetData(this.wallVertices);

            WallEdgeBuffer.Dispose();
            WallEdgeBuffer = new VertexBuffer(GameMain.Instance.GraphicsDevice, VertexPositionColorTexture.VertexDeclaration, this.wallEdgeVertices.Length + wallEdgeVertices.Length, BufferUsage.WriteOnly);
            int originalWallEdgeVertexCount = this.wallEdgeVertices.Length;

            Array.Resize(ref this.wallEdgeVertices, originalWallEdgeVertexCount + wallEdgeVertices.Length);
            Array.Copy(LevelRenderer.GetColoredVertices(wallEdgeVertices, color), 0, this.wallEdgeVertices, originalWallEdgeVertexCount, wallEdgeVertices.Length);
            WallEdgeBuffer.SetData(this.wallEdgeVertices);
        }
Ejemplo n.º 3
0
        public LevelWallVertexBuffer(VertexPositionTexture[] wallVertices, VertexPositionTexture[] wallEdgeVertices, Texture2D wallTexture, Texture2D edgeTexture, Color color)
        {
            if (wallVertices.Length == 0)
            {
                throw new ArgumentException("Failed to instantiate a LevelWallVertexBuffer (no wall vertices).");
            }
            if (wallVertices.Length == 0)
            {
                throw new ArgumentException("Failed to instantiate a LevelWallVertexBuffer (no wall edge vertices).");
            }
            this.wallVertices = LevelRenderer.GetColoredVertices(wallVertices, color);
            WallBuffer        = new VertexBuffer(GameMain.Instance.GraphicsDevice, VertexPositionColorTexture.VertexDeclaration, wallVertices.Length, BufferUsage.WriteOnly);
            WallBuffer.SetData(this.wallVertices);
            WallTexture = wallTexture;

            this.wallEdgeVertices = LevelRenderer.GetColoredVertices(wallEdgeVertices, color);
            WallEdgeBuffer        = new VertexBuffer(GameMain.Instance.GraphicsDevice, VertexPositionColorTexture.VertexDeclaration, wallEdgeVertices.Length, BufferUsage.WriteOnly);
            WallEdgeBuffer.SetData(this.wallEdgeVertices);
            EdgeTexture = edgeTexture;
        }
Ejemplo n.º 4
0
        private void Unload()
        {
            if (renderer != null)
            {
                renderer.Dispose();
                renderer = null;
            }

            if (ruins != null)
            {
                ruins.Clear();
                ruins = null;
            }

            /*
             * if (wrappingWalls!=null)
             * {
             *  for (int side = 0; side < 2; side++)
             *  {
             *      for (int i = 0; i < 2; i++)
             *      {
             *          if (wrappingWalls[side, i] != null) wrappingWalls[side, i].Dispose();
             *      }
             *  }
             *
             *  wrappingWalls = null;
             * }*/


            cells = null;

            if (bodies != null)
            {
                bodies.Clear();
                bodies = null;
            }

            loaded = null;
        }
Ejemplo n.º 5
0
        public void Generate(bool mirror = false)
        {
            if (backgroundSpriteManager == null)
            {
                var files = GameMain.SelectedPackage.GetFilesOfType(ContentType.BackgroundSpritePrefabs);
                if (files.Count > 0)
                {
                    backgroundSpriteManager = new BackgroundSpriteManager(files);
                }
                else
                {
                    backgroundSpriteManager = new BackgroundSpriteManager("Content/BackgroundSprites/BackgroundSpritePrefabs.xml");
                }
            }
#if CLIENT
            if (backgroundCreatureManager == null)
            {
                var files = GameMain.SelectedPackage.GetFilesOfType(ContentType.BackgroundCreaturePrefabs);
                if (files.Count > 0)
                {
                    backgroundCreatureManager = new BackgroundCreatureManager(files);
                }
                else
                {
                    backgroundCreatureManager = new BackgroundCreatureManager("Content/BackgroundSprites/BackgroundCreaturePrefabs.xml");
                }
            }
#endif

            Stopwatch sw = new Stopwatch();
            sw.Start();

            if (loaded != null)
            {
                loaded.Unload();
            }
            loaded = this;

            positionsOfInterest = new List <InterestingPosition>();

            Voronoi voronoi = new Voronoi(1.0);

            List <Vector2> sites = new List <Vector2>();

            bodies = new List <Body>();

            Rand.SetSyncedSeed(ToolBox.StringToInt(seed));

#if CLIENT
            renderer = new LevelRenderer(this);

            backgroundColor = generationParams.BackgroundColor;
            float avgValue = (backgroundColor.R + backgroundColor.G + backgroundColor.G) / 3;
            GameMain.LightManager.AmbientLight = new Color(backgroundColor * (10.0f / avgValue), 1.0f);
#endif

            SeaFloorTopPos = generationParams.SeaFloorDepth + generationParams.MountainHeightMax + generationParams.SeaFloorVariance;

            float minWidth = 6500.0f;
            if (Submarine.MainSub != null)
            {
                Rectangle dockedSubBorders = Submarine.MainSub.GetDockedBorders();
                minWidth = Math.Max(minWidth, Math.Max(dockedSubBorders.Width, dockedSubBorders.Height));
            }

            Rectangle pathBorders = borders;
            pathBorders.Inflate(-minWidth * 2, -minWidth * 2);

            startPosition = new Vector2(
                Rand.Range(minWidth, minWidth * 2, Rand.RandSync.Server),
                Rand.Range(borders.Height * 0.5f, borders.Height - minWidth * 2, Rand.RandSync.Server));

            endPosition = new Vector2(
                borders.Width - Rand.Range(minWidth, minWidth * 2, Rand.RandSync.Server),
                Rand.Range(borders.Height * 0.5f, borders.Height - minWidth * 2, Rand.RandSync.Server));

            //----------------------------------------------------------------------------------
            //generate the initial nodes for the main path and smaller tunnels
            //----------------------------------------------------------------------------------

            List <Vector2> pathNodes = new List <Vector2>();
            pathNodes.Add(new Vector2(startPosition.X, borders.Height));

            Vector2 nodeInterval = generationParams.MainPathNodeIntervalRange;

            for (float x = startPosition.X + nodeInterval.X;
                 x < endPosition.X - nodeInterval.X;
                 x += Rand.Range(nodeInterval.X, nodeInterval.Y, Rand.RandSync.Server))
            {
                pathNodes.Add(new Vector2(x, Rand.Range(pathBorders.Y, pathBorders.Bottom, Rand.RandSync.Server)));
            }

            pathNodes.Add(new Vector2(endPosition.X, borders.Height));

            if (pathNodes.Count <= 2)
            {
                pathNodes.Insert(1, borders.Center.ToVector2());
            }

            GenerateTunnels(pathNodes, minWidth);

            //----------------------------------------------------------------------------------
            //generate voronoi sites
            //----------------------------------------------------------------------------------

            Vector2 siteInterval = generationParams.VoronoiSiteInterval;
            Vector2 siteVariance = generationParams.VoronoiSiteVariance;
            for (float x = siteInterval.X / 2; x < borders.Width; x += siteInterval.X)
            {
                for (float y = siteInterval.Y / 2; y < borders.Height; y += siteInterval.Y)
                {
                    Vector2 site = new Vector2(
                        x + Rand.Range(-siteVariance.X, siteVariance.X, Rand.RandSync.Server),
                        y + Rand.Range(-siteVariance.Y, siteVariance.Y, Rand.RandSync.Server));

                    if (smallTunnels.Any(t => t.Any(node => Vector2.Distance(node, site) < siteInterval.Length())))
                    {
                        //add some more sites around the small tunnels to generate more small voronoi cells
                        if (x < borders.Width - siteInterval.X)
                        {
                            sites.Add(new Vector2(x, y) + Vector2.UnitX * siteInterval * 0.5f);
                        }
                        if (y < borders.Height - siteInterval.Y)
                        {
                            sites.Add(new Vector2(x, y) + Vector2.UnitY * siteInterval * 0.5f);
                        }
                        if (x < borders.Width - siteInterval.X && y < borders.Height - siteInterval.Y)
                        {
                            sites.Add(new Vector2(x, y) + Vector2.One * siteInterval * 0.5f);
                        }
                    }

                    if (mirror)
                    {
                        site.X = borders.Width - site.X;
                    }

                    sites.Add(site);
                }
            }


            //----------------------------------------------------------------------------------
            // construct the voronoi graph and cells
            //----------------------------------------------------------------------------------

            Stopwatch sw2 = new Stopwatch();
            sw2.Start();

            List <GraphEdge> graphEdges = voronoi.MakeVoronoiGraph(sites, borders.Width, borders.Height);

            Debug.WriteLine("MakeVoronoiGraph: " + sw2.ElapsedMilliseconds + " ms");
            sw2.Restart();

            //construct voronoi cells based on the graph edges
            cells = CaveGenerator.GraphEdgesToCells(graphEdges, borders, GridCellSize, out cellGrid);

            Debug.WriteLine("find cells: " + sw2.ElapsedMilliseconds + " ms");
            sw2.Restart();

            //----------------------------------------------------------------------------------
            // generate a path through the initial path nodes
            //----------------------------------------------------------------------------------

            List <VoronoiCell> mainPath = CaveGenerator.GeneratePath(pathNodes, cells, cellGrid, GridCellSize,
                                                                     new Rectangle(pathBorders.X, pathBorders.Y, pathBorders.Width, borders.Height), 0.5f, mirror);

            for (int i = 2; i < mainPath.Count; i += 3)
            {
                positionsOfInterest.Add(new InterestingPosition(mainPath[i].Center, PositionType.MainPath));
            }

            List <VoronoiCell> pathCells = new List <VoronoiCell>(mainPath);

            //make sure the path is wide enough to pass through
            EnlargeMainPath(pathCells, minWidth);

            foreach (InterestingPosition positionOfInterest in positionsOfInterest)
            {
                WayPoint wayPoint = new WayPoint(positionOfInterest.Position, SpawnType.Enemy, null);
                wayPoint.MoveWithLevel = true;
            }

            startPosition.X = pathCells[0].Center.X;

            //----------------------------------------------------------------------------------
            // tunnels through the tunnel nodes
            //----------------------------------------------------------------------------------

            foreach (List <Vector2> tunnel in smallTunnels)
            {
                if (tunnel.Count < 2)
                {
                    continue;
                }

                //find the cell which the path starts from
                int startCellIndex = CaveGenerator.FindCellIndex(tunnel[0], cells, cellGrid, GridCellSize, 1);
                if (startCellIndex < 0)
                {
                    continue;
                }

                //if it wasn't one of the cells in the main path, don't create a tunnel
                if (cells[startCellIndex].CellType != CellType.Path)
                {
                    continue;
                }

                var newPathCells = CaveGenerator.GeneratePath(tunnel, cells, cellGrid, GridCellSize, pathBorders);

                positionsOfInterest.Add(new InterestingPosition(tunnel.Last(), PositionType.Cave));

                if (tunnel.Count > 4)
                {
                    positionsOfInterest.Add(new InterestingPosition(tunnel[tunnel.Count / 2], PositionType.Cave));
                }

                pathCells.AddRange(newPathCells);
            }

            Debug.WriteLine("path: " + sw2.ElapsedMilliseconds + " ms");
            sw2.Restart();


            //----------------------------------------------------------------------------------
            // remove unnecessary cells and create some holes at the bottom of the level
            //----------------------------------------------------------------------------------

            cells = CleanCells(pathCells);
            pathCells.AddRange(CreateBottomHoles(generationParams.BottomHoleProbability, new Rectangle(
                                                     (int)(borders.Width * 0.2f), 0,
                                                     (int)(borders.Width * 0.6f), (int)(borders.Height * 0.8f))));

            foreach (VoronoiCell cell in cells)
            {
                if (cell.Center.Y < borders.Height / 2)
                {
                    continue;
                }
                cell.edges.ForEach(e => e.OutsideLevel = true);
            }

            //----------------------------------------------------------------------------------
            // initialize the cells that are still left and insert them into the cell grid
            //----------------------------------------------------------------------------------

            foreach (VoronoiCell cell in pathCells)
            {
                cell.edges.ForEach(e => e.OutsideLevel = false);

                cell.CellType = CellType.Path;
                cells.Remove(cell);
            }

            for (int x = 0; x < cellGrid.GetLength(0); x++)
            {
                for (int y = 0; y < cellGrid.GetLength(1); y++)
                {
                    cellGrid[x, y].Clear();
                }
            }

            foreach (VoronoiCell cell in cells)
            {
                int x = (int)Math.Floor(cell.Center.X / GridCellSize);
                int y = (int)Math.Floor(cell.Center.Y / GridCellSize);

                if (x < 0 || y < 0 || x >= cellGrid.GetLength(0) || y >= cellGrid.GetLength(1))
                {
                    continue;
                }

                cellGrid[x, y].Add(cell);
            }


            //----------------------------------------------------------------------------------
            // create some ruins
            //----------------------------------------------------------------------------------

            ruins = new List <Ruin>();
            for (int i = 0; i < generationParams.RuinCount; i++)
            {
                GenerateRuin(mainPath);
            }


            //----------------------------------------------------------------------------------
            // generate the bodies and rendered triangles of the cells
            //----------------------------------------------------------------------------------

            startPosition.Y = borders.Height;
            endPosition.Y   = borders.Height;

            List <VoronoiCell> cellsWithBody = new List <VoronoiCell>(cells);

            List <Vector2[]> triangles;
            bodies = CaveGenerator.GeneratePolygons(cellsWithBody, out triangles);

#if CLIENT
            renderer.SetBodyVertices(CaveGenerator.GenerateRenderVerticeList(triangles).ToArray(), generationParams.WallColor);
            renderer.SetWallVertices(CaveGenerator.GenerateWallShapes(cells), generationParams.WallColor);
#endif

            TopBarrier = BodyFactory.CreateEdge(GameMain.World,
                                                ConvertUnits.ToSimUnits(new Vector2(borders.X, 0)),
                                                ConvertUnits.ToSimUnits(new Vector2(borders.Right, 0)));

            TopBarrier.SetTransform(ConvertUnits.ToSimUnits(new Vector2(0.0f, borders.Height)), 0.0f);
            TopBarrier.BodyType            = BodyType.Static;
            TopBarrier.CollisionCategories = Physics.CollisionLevel;

            bodies.Add(TopBarrier);

            GenerateSeaFloor();

            backgroundSpriteManager.PlaceSprites(this, generationParams.BackgroundSpriteAmount);
#if CLIENT
            backgroundCreatureManager.SpawnSprites(80);
#endif

            foreach (VoronoiCell cell in cells)
            {
                foreach (GraphEdge edge in cell.edges)
                {
                    edge.cell1 = null;
                    edge.cell2 = null;
                    edge.site1 = null;
                    edge.site2 = null;
                }
            }

            //initialize MapEntities that aren't in any sub (e.g. items inside ruins)
            MapEntity.MapLoaded(null);

            Debug.WriteLine("Generatelevel: " + sw2.ElapsedMilliseconds + " ms");
            sw2.Restart();

            if (mirror)
            {
                Vector2 temp = startPosition;
                startPosition = endPosition;
                endPosition   = temp;
            }

            Debug.WriteLine("**********************************************************************************");
            Debug.WriteLine("Generated a map with " + sites.Count + " sites in " + sw.ElapsedMilliseconds + " ms");
            Debug.WriteLine("Seed: " + seed);
            Debug.WriteLine("**********************************************************************************");

            if (GameSettings.VerboseLogging)
            {
                DebugConsole.NewMessage("Generated level with the seed " + seed + " (type: " + generationParams.Name + ")", Color.White);
            }
        }
Ejemplo n.º 6
0
 public void SetBodyVertices(VertexPositionTexture[] vertices, Color color)
 {
     bodyVertices = new VertexBuffer(GameMain.Instance.GraphicsDevice, VertexPositionColorTexture.VertexDeclaration, vertices.Length, BufferUsage.WriteOnly);
     bodyVertices.SetData(LevelRenderer.GetColoredVertices(vertices, color));
 }
Ejemplo n.º 7
0
        public void Generate(bool mirror = false)
        {
            Stopwatch sw = new Stopwatch();

            sw.Start();

            if (loaded != null)
            {
                loaded.Unload();
            }
            loaded = this;

            positionsOfInterest = new List <InterestingPosition>();

            renderer = new LevelRenderer(this);

            Voronoi voronoi = new Voronoi(1.0);

            List <Vector2> sites = new List <Vector2>();

            bodies = new List <Body>();

            Rand.SetSyncedSeed(ToolBox.StringToInt(seed));

            backgroundColor = generationParams.BackgroundColor;
            float avgValue = (backgroundColor.R + backgroundColor.G + backgroundColor.G) / 3;

            GameMain.LightManager.AmbientLight = new Color(backgroundColor * (10.0f / avgValue), 1.0f);

            float minWidth = 6500.0f;

            if (Submarine.MainSub != null)
            {
                Rectangle dockedSubBorders = Submarine.MainSub.GetDockedBorders();
                minWidth = Math.Max(minWidth, Math.Max(dockedSubBorders.Width, dockedSubBorders.Height));
            }

            startPosition = new Vector2(
                Rand.Range(minWidth, minWidth * 2, false),
                Rand.Range(borders.Height * 0.5f, borders.Height - minWidth * 2, false));

            endPosition = new Vector2(
                borders.Width - Rand.Range(minWidth, minWidth * 2, false),
                Rand.Range(borders.Height * 0.5f, borders.Height - minWidth * 2, false));

            List <Vector2> pathNodes   = new List <Vector2>();
            Rectangle      pathBorders = borders;// new Rectangle((int)minWidth, (int)minWidth, borders.Width - (int)minWidth * 2, borders.Height - (int)minWidth);

            pathBorders.Inflate(-minWidth * 2, -minWidth * 2);

            pathNodes.Add(new Vector2(startPosition.X, borders.Height));

            Vector2 nodeInterval = generationParams.MainPathNodeIntervalRange;

            for (float x = startPosition.X + Rand.Range(nodeInterval.X, nodeInterval.Y, false);
                 x < endPosition.X - Rand.Range(nodeInterval.X, nodeInterval.Y, false);
                 x += Rand.Range(nodeInterval.X, nodeInterval.Y, false))
            {
                pathNodes.Add(new Vector2(x, Rand.Range(pathBorders.Y, pathBorders.Bottom, false)));
            }

            pathNodes.Add(new Vector2(endPosition.X, borders.Height));

            if (pathNodes.Count <= 2)
            {
                pathNodes.Add((startPosition + endPosition) / 2);
            }

            List <List <Vector2> > smallTunnels = new List <List <Vector2> >();

            for (int i = 0; i < generationParams.SmallTunnelCount; i++)
            {
                var tunnelStartPos = pathNodes[Rand.Range(2, pathNodes.Count - 2, false)];
                tunnelStartPos.X = MathHelper.Clamp(tunnelStartPos.X, pathBorders.X, pathBorders.Right);

                float tunnelLength = Rand.Range(
                    generationParams.SmallTunnelLengthRange.X,
                    generationParams.SmallTunnelLengthRange.Y,
                    false);

                var tunnelNodes = MathUtils.GenerateJaggedLine(
                    tunnelStartPos,
                    new Vector2(tunnelStartPos.X, pathBorders.Bottom) + Rand.Vector(tunnelLength, false),
                    4, 1000.0f);

                List <Vector2> tunnel = new List <Vector2>();
                foreach (Vector2[] tunnelNode in tunnelNodes)
                {
                    if (!pathBorders.Contains(tunnelNode[0]))
                    {
                        continue;
                    }
                    tunnel.Add(tunnelNode[0]);
                }

                if (tunnel.Any())
                {
                    smallTunnels.Add(tunnel);
                }
            }

            Vector2 siteInterval = generationParams.VoronoiSiteInterval;
            Vector2 siteVariance = generationParams.VoronoiSiteVariance;

            for (float x = siteInterval.X / 2; x < borders.Width; x += siteInterval.X)
            {
                for (float y = siteInterval.Y / 2; y < borders.Height; y += siteInterval.Y)
                {
                    Vector2 site = new Vector2(
                        x + Rand.Range(-siteVariance.X, siteVariance.X, false),
                        y + Rand.Range(-siteVariance.Y, siteVariance.Y, false));

                    if (smallTunnels.Any(t => t.Any(node => Vector2.Distance(node, site) < siteInterval.Length())))
                    {
                        //add some more sites around the small tunnels to generate more small voronoi cells
                        if (x < borders.Width - siteInterval.X)
                        {
                            sites.Add(new Vector2(x, y) + Vector2.UnitX * siteInterval * 0.5f);
                        }
                        if (y < borders.Height - siteInterval.Y)
                        {
                            sites.Add(new Vector2(x, y) + Vector2.UnitY * siteInterval * 0.5f);
                        }
                        if (x < borders.Width - siteInterval.X && y < borders.Height - siteInterval.Y)
                        {
                            sites.Add(new Vector2(x, y) + Vector2.One * siteInterval * 0.5f);
                        }
                    }

                    if (mirror)
                    {
                        site.X = borders.Width - site.X;
                    }

                    sites.Add(site);
                }
            }

            Stopwatch sw2 = new Stopwatch();

            sw2.Start();

            List <GraphEdge> graphEdges = voronoi.MakeVoronoiGraph(sites, borders.Width, borders.Height);

            Debug.WriteLine("MakeVoronoiGraph: " + sw2.ElapsedMilliseconds + " ms");
            sw2.Restart();

            //construct voronoi cells based on the graph edges
            cells = CaveGenerator.GraphEdgesToCells(graphEdges, borders, GridCellSize, out cellGrid);

            Debug.WriteLine("find cells: " + sw2.ElapsedMilliseconds + " ms");
            sw2.Restart();

            List <VoronoiCell> mainPath = CaveGenerator.GeneratePath(pathNodes, cells, cellGrid, GridCellSize,
                                                                     new Rectangle(pathBorders.X, pathBorders.Y, pathBorders.Width, borders.Height), 0.5f, mirror);

            for (int i = 2; i < mainPath.Count; i += 3)
            {
                positionsOfInterest.Add(new InterestingPosition(mainPath[i].Center, PositionType.MainPath));
            }

            List <VoronoiCell> pathCells = new List <VoronoiCell>(mainPath);

            EnlargeMainPath(pathCells, minWidth);

            foreach (InterestingPosition positionOfInterest in positionsOfInterest)
            {
                WayPoint wayPoint = new WayPoint(positionOfInterest.Position, SpawnType.Enemy, null);
                wayPoint.MoveWithLevel = true;
            }

            startPosition.X = pathCells[0].Center.X;

            foreach (List <Vector2> tunnel in smallTunnels)
            {
                if (tunnel.Count < 2)
                {
                    continue;
                }

                //find the cell which the path starts from
                int startCellIndex = CaveGenerator.FindCellIndex(tunnel[0], cells, cellGrid, GridCellSize, 1);
                if (startCellIndex < 0)
                {
                    continue;
                }

                //if it wasn't one of the cells in the main path, don't create a tunnel
                if (cells[startCellIndex].CellType != CellType.Path)
                {
                    continue;
                }

                var newPathCells = CaveGenerator.GeneratePath(tunnel, cells, cellGrid, GridCellSize, pathBorders);

                positionsOfInterest.Add(new InterestingPosition(tunnel.Last(), PositionType.Cave));

                if (tunnel.Count > 4)
                {
                    positionsOfInterest.Add(new InterestingPosition(tunnel[tunnel.Count / 2], PositionType.Cave));
                }

                pathCells.AddRange(newPathCells);
            }

            Debug.WriteLine("path: " + sw2.ElapsedMilliseconds + " ms");
            sw2.Restart();

            cells = CleanCells(pathCells);

            pathCells.AddRange(CreateBottomHoles(generationParams.BottomHoleProbability, new Rectangle(
                                                     (int)(borders.Width * 0.2f), 0,
                                                     (int)(borders.Width * 0.6f), (int)(borders.Height * 0.8f))));

            foreach (VoronoiCell cell in cells)
            {
                if (cell.Center.Y < borders.Height / 2)
                {
                    continue;
                }
                cell.edges.ForEach(e => e.OutsideLevel = true);
            }

            foreach (VoronoiCell cell in pathCells)
            {
                cell.edges.ForEach(e => e.OutsideLevel = false);

                cell.CellType = CellType.Path;
                cells.Remove(cell);
            }

            //generate some narrow caves
            int caveAmount = 0;// Rand.Int(3, false);
            List <VoronoiCell> usedCaveCells = new List <VoronoiCell>();

            for (int i = 0; i < caveAmount; i++)
            {
                Vector2     startPoint = Vector2.Zero;
                VoronoiCell startCell  = null;

                var caveCells = new List <VoronoiCell>();

                int maxTries = 5, tries = 0;
                while (tries < maxTries)
                {
                    startCell = cells[Rand.Int(cells.Count, false)];

                    //find an edge between the cell and the already carved path
                    GraphEdge startEdge =
                        startCell.edges.Find(e => pathCells.Contains(e.AdjacentCell(startCell)));

                    if (startEdge != null)
                    {
                        startPoint  = (startEdge.point1 + startEdge.point2) / 2.0f;
                        startPoint += startPoint - startCell.Center;

                        //get the cells in which the cave will be carved
                        caveCells = GetCells(startCell.Center, 2);
                        //remove cells that have already been "carved" out
                        caveCells.RemoveAll(c => c.CellType == CellType.Path);

                        //if any of the cells have already been used as a cave, continue and find some other cells
                        if (usedCaveCells.Any(c => caveCells.Contains(c)))
                        {
                            continue;
                        }
                        break;
                    }

                    tries++;
                }

                //couldn't find a place for a cave -> abort
                if (tries >= maxTries)
                {
                    break;
                }

                if (!caveCells.Any())
                {
                    continue;
                }

                usedCaveCells.AddRange(caveCells);

                List <VoronoiCell> caveSolidCells;
                var cavePathCells = CaveGenerator.CarveCave(caveCells, startPoint, out caveSolidCells);

                //remove the large cells used as a "base" for the cave (they've now been replaced with smaller ones)
                caveCells.ForEach(c => cells.Remove(c));

                cells.AddRange(caveSolidCells);

                foreach (VoronoiCell cell in cavePathCells)
                {
                    cells.Remove(cell);
                }

                pathCells.AddRange(cavePathCells);

                for (int j = cavePathCells.Count / 2; j < cavePathCells.Count; j += 10)
                {
                    positionsOfInterest.Add(new InterestingPosition(cavePathCells[j].Center, PositionType.Cave));
                }
            }

            for (int x = 0; x < cellGrid.GetLength(0); x++)
            {
                for (int y = 0; y < cellGrid.GetLength(1); y++)
                {
                    cellGrid[x, y].Clear();
                }
            }

            foreach (VoronoiCell cell in cells)
            {
                int x = (int)Math.Floor(cell.Center.X / GridCellSize);
                int y = (int)Math.Floor(cell.Center.Y / GridCellSize);

                if (x < 0 || y < 0 || x >= cellGrid.GetLength(0) || y >= cellGrid.GetLength(1))
                {
                    continue;
                }

                cellGrid[x, y].Add(cell);
            }

            ruins = new List <Ruin>();
            for (int i = 0; i < generationParams.RuinCount; i++)
            {
                GenerateRuin(mainPath);
            }

            startPosition.Y = borders.Height;
            endPosition.Y   = borders.Height;

            List <VoronoiCell> cellsWithBody = new List <VoronoiCell>(cells);

            List <VertexPositionTexture> bodyVertices;

            bodies = CaveGenerator.GeneratePolygons(cellsWithBody, out bodyVertices);

            renderer.SetBodyVertices(bodyVertices.ToArray());
            renderer.SetWallVertices(CaveGenerator.GenerateWallShapes(cells));

            renderer.PlaceSprites(generationParams.BackgroundSpriteAmount);

            ShaftBody = BodyFactory.CreateEdge(GameMain.World,
                                               ConvertUnits.ToSimUnits(new Vector2(borders.X, 0)),
                                               ConvertUnits.ToSimUnits(new Vector2(borders.Right, 0)));

            ShaftBody.SetTransform(ConvertUnits.ToSimUnits(new Vector2(0.0f, borders.Height)), 0.0f);

            ShaftBody.BodyType            = BodyType.Static;
            ShaftBody.CollisionCategories = Physics.CollisionLevel;

            bodies.Add(ShaftBody);

            foreach (VoronoiCell cell in cells)
            {
                foreach (GraphEdge edge in cell.edges)
                {
                    edge.cell1 = null;
                    edge.cell2 = null;
                    edge.site1 = null;
                    edge.site2 = null;
                }
            }

            //initialize MapEntities that aren't in any sub (e.g. items inside ruins)
            MapEntity.MapLoaded(null);

            Debug.WriteLine("Generatelevel: " + sw2.ElapsedMilliseconds + " ms");
            sw2.Restart();

            if (mirror)
            {
                Vector2 temp = startPosition;
                startPosition = endPosition;
                endPosition   = temp;
            }

            Debug.WriteLine("**********************************************************************************");
            Debug.WriteLine("Generated a map with " + sites.Count + " sites in " + sw.ElapsedMilliseconds + " ms");
            Debug.WriteLine("Seed: " + seed);
            Debug.WriteLine("**********************************************************************************");
        }