public static Point2D FindNondegenerateIntersection(Point2D p1, Vector2D v1, Point2D p2, Vector2D v2)
        {
            // :: neither is vertical or horizontal, reparameterize line to start at m_p.x
             var lineStart = p2 - (p2.X - p1.X) * v2;

             // let height = y difference, also find dHeight/dX
             var height = lineStart.Y - p1.Y;
             var dhdx = (v2.Y / v2.X) - (v1.Y / v1.X);
             return p1 + v1 * (height / dhdx);
        }
Ejemplo n.º 2
0
        public Line2D(Point2D p, Vector2D v)
            : base(ShapeType2D.Line)
        {
            m_p = p;
             m_v = v;

             // thetas pi/2 and -pi/2 indicate verticalnes, GATXPlus returns in range [-pi, pi]
             var absAngle = Math.Abs(m_v.GetAngleToXPlus());
             m_isEssentiallyVertical = Math.Abs(absAngle - Math.PI / 2) < kVerticalThetaEpsilon;
             m_isEssentiallyHorizontal = absAngle < kVerticalThetaEpsilon || Math.Abs(absAngle - Math.PI) < kVerticalThetaEpsilon;
        }
Ejemplo n.º 3
0
        private static void Main(string[] args)
        {
            Application.EnableVisualStyles();

             // Implement the Gruenes Schaf
             new Thread(() => {
            while (true) {
               GC.Collect();
               Thread.Sleep(5000);
            }
             }).Start();

             var gridWidth = 2;
             var gridHeight = 2;

             var grid = new GridFactory().Create(gridWidth, gridHeight);
             var manipulator = new GridManipulator(grid, new Random(0));
             var spiral = new SpiralParametricFunction(1, 10, 3, (float)gridWidth / 2, (float)gridHeight / 2, 0);
             manipulator.CutParametric(spiral.TInitial, spiral.TFinal, 20f, spiral.PointAt);
             var lastSpiralPoint = spiral.PointAt(spiral.TFinal - 30);
             var v = new Vector2D(lastSpiralPoint, new Point2D(gridWidth / 2.0f, gridHeight / 2.0f));
             v = v.ToUnitVector();
             var cutDestination = lastSpiralPoint + v * 3;
             manipulator.CutLine(new Line2D(lastSpiralPoint, cutDestination));
             var entranceCell = grid.Cells[(gridHeight / 2) * grid.Width + (gridWidth / 2)];
             var cells = manipulator.FillRegion(entranceCell);

             var graphicsConfiguration = new GraphicsConfiguration { Width = 1600, Height = 900 };
             var gridletFactory = new GridletFactory();
            //         IReadOnlyList<NavigationGridlet> gridlets = CreateGridletsFromDungeonGrid(grid, gridletFactory);
             IReadOnlyList<NavigationGridlet> gridlets = new List<NavigationGridlet> {
            gridletFactory.Quad(0, 0, 0, 0, 0, 0, 60, 60),
            //            gridletFactory.Quad(37, 0, 2, -0.3f, 0, 0, 15, 7),
            //            gridletFactory.Quad(47.60f, -9.0f, 4.22f, 0, 0, 0, 7, 25),
            //            gridletFactory.Quad(58.05f, -18.0f, 4.22f, 0, 0, 0, 15, 7)
             };
             var navigationGrid = new NavigationGrid(gridlets);
             navigationGrid.Initialize();
             var pathfinder = new Pathfinder(navigationGrid);
             var renderer = new Renderer();

             CommandFactory commandFactory = new CommandFactory(pathfinder);
             var entityFactory = new EntityFactory();
             var entitySystem = new EntitySystem();
             entitySystem.AddEntity(entityFactory.CreateUnitCubeEntity());
             navigationGrid.Gridlets.ForEach(gridlet => entitySystem.AddEntity(entityFactory.CreateAndAssociateGridletEntity(navigationGrid, gridlet, pathfinder, commandFactory)));
             var characterEntity = entityFactory.CreateCharacterEntity(pathfinder);
             entitySystem.AddEntity(characterEntity);
             entitySystem.AddEntity(entityFactory.CreateCameraEntity(graphicsConfiguration, characterEntity));
             entitySystem.AddBehavior(new PhysicsBehavior(navigationGrid));
             entitySystem.AddBehavior(new CommandQueueBehavior());

             // Dungeon Stuff
             DungeonKeyInventory dungeonKeyInventory = new DungeonKeyInventory();
            //         entitySystem.AddEntity(entityFactory.CreateDungeonKeyEntity(new Vector3(5, 10, 0), new Vector4(1, 0, 0, 1), commandFactory, dungeonKeyInventory));
            //         entitySystem.AddEntity(entityFactory.CreateDungeonLockEntity(new Vector3(0, 35, 0), new Vector4(1, 0, 0, 1), commandFactory, dungeonKeyInventory));
            //         entitySystem.AddBehavior(new DungeonLockDisablesGroundPathingBehavior(navigationGrid));
             foreach (var cell in cells) {
            if (cell.KeyColor != Color.Empty) {
               var color = new Vector4(cell.KeyColor.R / 255f, cell.KeyColor.G / 255f, cell.KeyColor.B / 255f, 1);
               entitySystem.AddEntity(entityFactory.CreateDungeonKeyEntity(new Vector3(cell.X * 70 + 5, cell.Y * 70 + 10, 0), color, commandFactory, dungeonKeyInventory));
            }
            if (cell.LockColor != Color.Empty) {
               var color = new Vector4(cell.LockColor.R / 255f, cell.LockColor.G / 255f, cell.LockColor.B / 255f, 1);
               entitySystem.AddEntity(entityFactory.CreateDungeonLockEntity(new Vector3(cell.X * 70, cell.Y * 70, 0), color, commandFactory, dungeonKeyInventory, navigationGrid));
            }
             }

             using (var game = new ShadeGame(graphicsConfiguration, renderer, entitySystem)) {
            game.Run();
             }
        }
Ejemplo n.º 4
0
        public static void Main(string[] args)
        {
            var width = 45;
             var height = 30;
             var grid = new GridFactory().Create(width, height);
             var manipulator = new GridManipulator(grid, new Random());
            //         manipulator.CutLine(new Line2D(new Point2D(0, 0), new Point2D(20, 40)));

             Renderer renderer = null;//new Renderer(grid);//.RenderGrid(grid);
             var spiral = new SpiralParametricFunction(1, 9, 3, width / 2.0f, height / 2.0f, 0);
             manipulator.CutParametric(spiral.TInitial, spiral.TFinal, 20f, spiral.PointAt, renderer);
             var lastSpiralPoint = spiral.PointAt(spiral.TFinal - 30);
             var v = new Vector2D(lastSpiralPoint, new Point2D(width / 2.0f, height / 2.0f));
             v = v.ToUnitVector();
             var cutDestination = lastSpiralPoint + v * 3;
             manipulator.CutLine(new Line2D(lastSpiralPoint, cutDestination), renderer);

             Application.DoEvents();
             var entranceCell = grid.Cells[(height / 2) * grid.Width + (width / 2)];
             var cells = manipulator.FillRegion(entranceCell, renderer);

             renderer = new Renderer(grid);//.RenderGrid(grid);

             manipulator.PlaceLocksAndKeys(entranceCell, cells, new[] {
            Color.Red,
            Color.Blue,
            Color.DarkGreen,
            Color.DeepPink,
            Color.Magenta,
            Color.Cyan,
            Color.Yellow,
            Color.Gold,
            Color.Black,
            Color.DarkOrange,
            Color.Gray,
            Color.Aquamarine,
            Color.AliceBlue,
            Color.Azure,
            Color.DodgerBlue,
            Color.Indigo,
            Color.DeepSkyBlue,
            Color.PaleGreen,
            Color.PaleGoldenrod,
            Color.PaleTurquoise});

             Console.WriteLine("Cell Count: " + cells.Count);
             entranceCell.Type = CellType.Entrance;
             while (true) {
            renderer.RenderGrid(grid);
            Application.DoEvents();
             }
        }
Ejemplo n.º 5
0
        private void HandleRender(object sender, RenderEventArgs e)
        {
            var startPoint = new Point2D(15, 5);
             var endPoint = new Point2D(55, 40);
             this.gridlet.Cells[(int)(startPoint.X + startPoint.Y * gridlet.XLength)].Flags |= CellFlags.Debug;
             this.gridlet.Cells[(int)(endPoint.X + endPoint.Y * gridlet.XLength)].Flags |= CellFlags.Debug;

             if (!isGraphicsInitialized) {
            InitializeGraphics(e.GraphicsDevice);
            isGraphicsInitialized = true;
             }

             var graphicsDevice = e.GraphicsDevice;
             var renderer = e.Renderer;
             e.BasicEffect.World = gridlet.Orientation * Matrix.Translation(gridlet.X, gridlet.Y, gridlet.Z);
             e.BasicEffect.Texture = debugTexture;
             e.BasicEffect.TextureEnabled = true;
             e.BasicEffect.DiffuseColor = Vector4.One;
             var samplerStateDescription = SamplerStateDescription.Default();
             samplerStateDescription.Filter = Filter.ComparisonMinMagMipPoint;
             e.BasicEffect.Sampler = SamplerState.New(graphicsDevice, samplerStateDescription);
             e.BasicEffect.CurrentTechnique.Passes[0].Apply();
             graphicsDevice.SetRasterizerState(graphicsDevice.RasterizerStates.CullBack);
             graphicsDevice.SetVertexBuffer(0, vertexBuffer, 0);
             graphicsDevice.SetVertexInputLayout(vertexInputLayout);
             graphicsDevice.SetIndexBuffer(indexBuffer, true);
             graphicsDevice.DrawIndexed(PrimitiveType.TriangleList, indexBuffer.ElementCount);

             var meshTransform = gridlet.Orientation * Matrix.Translation(gridlet.X, gridlet.Y, gridlet.Z);
             foreach (var meshTriangle in gridlet.Mesh) {
            var a = new Vector3((float)meshTriangle.Points[0].X, (float)meshTriangle.Points[0].Y, 0);
            var b = new Vector3((float)meshTriangle.Points[1].X, (float)meshTriangle.Points[1].Y, 0);
            var c = new Vector3((float)meshTriangle.Points[2].X, (float)meshTriangle.Points[2].Y, 0);
            Vector3.Transform(ref a, ref meshTransform, out a);
            Vector3.Transform(ref b, ref meshTransform, out b);
            Vector3.Transform(ref c, ref meshTransform, out c);
            //            var n = meshTriangle. Vector3.Cross((a - b), b - c);
            var color = true ? Color.Cyan : Color.Green;
            renderer.DrawDebugLine(a, b, color);
            ;
            renderer.DrawDebugLine(b, c, color);
            renderer.DrawDebugLine(c, a, color);

            foreach (var neighbor in meshTriangle.Neighbors.Where(n => n != null)) {
               Console.WriteLine(neighbor.IsInterior);
            }

            foreach (var neighbor in meshTriangle.Neighbors.Where(n => n != null && n.IsInterior)) {
               Console.WriteLine("!@#!@#@#");
               var meshCentroid = meshTriangle.Centroid();
               var neighborCentroid = neighbor.Centroid();
               var centroidA = new Vector3(meshCentroid.Xf, meshCentroid.Yf, 0);
               var centroidB = new Vector3(neighborCentroid.Xf, neighborCentroid.Yf, 0);
               Vector3.Transform(ref centroidA, ref meshTransform, out centroidA);
               Vector3.Transform(ref centroidB, ref meshTransform, out centroidB);
               renderer.DrawDebugLine(
                  centroidA,
                  centroidB,
                  Color.Red
               );
            }
             }

             foreach (var neighbor in gridlet.Neighbors) {
            renderer.DrawDebugLine(
               gridlet.OrientedBoundingBox.Center,
               neighbor.OrientedBoundingBox.Center,
               Color.Magenta
            );
             }

             var mesh = gridlet.Mesh;
             var startTriangle = mesh.First(
            x => new Triangle2D(
               new Point2D(x.Points[0].Xf, x.Points[0].Yf),
               new Point2D(x.Points[1].Xf, x.Points[1].Yf),
               new Point2D(x.Points[2].Xf, x.Points[2].Yf)).Contains(startPoint - new Point2D(gridlet.XLength / 2.0, gridlet.YLength / 2.0))
             );
             var endTriangle = mesh.First(
            x => new Triangle2D(
               new Point2D(x.Points[0].Xf, x.Points[0].Yf),
               new Point2D(x.Points[1].Xf, x.Points[1].Yf),
               new Point2D(x.Points[2].Xf, x.Points[2].Yf)).Contains(endPoint - new Point2D(gridlet.XLength / 2.0, gridlet.YLength / 2.0))
             );

             ConcurrentDictionary<DelaunayTriangle, double> distancesByTriangle = new ConcurrentDictionary<DelaunayTriangle, double>();
             distancesByTriangle.TryAdd(startTriangle, 0);
             var lastCount = 0;
             while (lastCount != distancesByTriangle.Count) {
            lastCount = distancesByTriangle.Count;
            foreach (var kvp in distancesByTriangle) {
               var triangle = kvp.Key;
               var distance = kvp.Value;
               foreach (var neighbor in triangle.Neighbors.Where(n => n != null && n.IsInterior).Where(n => n.Points.Union(triangle.Points).Distinct().Count() == 4)) {
                  var triangleCentroid = triangle.Centroid();
                  if (triangle == startTriangle) {
                     triangleCentroid = new TriangulationPoint(startPoint.X - gridlet.XLength / 2.0, startPoint.Y - gridlet.YLength / 2.0);
                  } else if (triangle == endTriangle) {
                     triangleCentroid = new TriangulationPoint(endPoint.X - gridlet.XLength / 2.0, endPoint.Y - gridlet.YLength / 2.0);
                  }
                  var neighborCentorid = neighbor.Centroid();
                  var neighborDistance = distance + Math.Pow(triangleCentroid.X - neighborCentorid.X, 2) + Math.Pow(triangleCentroid.Y - neighborCentorid.Y, 2);
                  distancesByTriangle.AddOrUpdate(
                     neighbor,
                     add => neighborDistance,
                     (update, existing) => Math.Min(existing, neighborDistance)
                  );
               }
            }
             }
             foreach (var kvp in distancesByTriangle) {
            var triangle = kvp.Key;
            var distance = kvp.Value;
            foreach (var neighbor in triangle.Neighbors.Where(n => n != null && n.IsInterior)) {
               var triangleCentroid = triangle.Centroid();
               var neighborCentorid = neighbor.Centroid();
               var neighborDistance = distance + Math.Pow(triangleCentroid.X - neighborCentorid.X, 2) + Math.Pow(triangleCentroid.Y - neighborCentorid.Y, 2);
               distancesByTriangle.AddOrUpdate(
                  neighbor,
                  add => neighborDistance,
                  (update, existing) => Math.Min(existing, neighborDistance)
               );
            }
             }
             var path = new List<DelaunayTriangle>();
             {
            var currentNode = endTriangle;
            while (currentNode != startTriangle) {
               path.Insert(0, currentNode);
               currentNode = currentNode.Neighbors.Where(n => n != null && n.IsInterior).MinBy(distancesByTriangle.Get);
            }
            path.Insert(0, currentNode);
             }

             for (var i = 0; i < path.Count - 1; i++) {
            var startCentroid = new Vector3(path[i].Centroid().Xf, path[i].Centroid().Yf, 0);
            var endCentroid = new Vector3(path[i + 1].Centroid().Xf, path[i + 1].Centroid().Yf, 0);

            Vector3.Transform(ref startCentroid, ref meshTransform, out startCentroid);
            Vector3.Transform(ref endCentroid, ref meshTransform, out endCentroid);
            e.Renderer.DrawDebugLine(startCentroid, endCentroid, Color.White);
             }
            //         path = new[] { 5, 6, 13, 12, 11, 0 }.Select(mesh.Get).ToList();
             {

            var finalPath = new List<Point2D>();
            var currentPoint = new Point2D(startPoint.X - Gridlet.XLength / 2.0, startPoint.Y - gridlet.YLength / 2.0);
            var currentSharedPoints = path[0].Points.Intersect(path[1].Points).ToArray();
            finalPath.Add(currentPoint);
            try {
               for (var i = 1; i < path.Count; i++) {
                  TriangulationPoint[] sharedPoints;
                  Point2D commonPoint, newPoint, oldOther;
                  if (i < path.Count - 1) {
                     sharedPoints = path[i].Points.Intersect(path[i + 1].Points).ToArray();
                     var commonPoints = sharedPoints.Intersect(currentSharedPoints).ToArray();
                     Trace.Assert(commonPoints.Length == 1);
                     var commonPoint_ = commonPoints[0];
                     commonPoint = new Point2D(commonPoint_.X, commonPoint_.Y);
                     var newPoint_ = sharedPoints.First(p => !p.Equals(commonPoint_));
                     newPoint = new Point2D(newPoint_.X, newPoint_.Y);
                     var oldOther_ = currentSharedPoints.First(p => !p.Equals(commonPoint_));
                     oldOther = new Point2D(oldOther_.X, oldOther_.Y);
                  } else {
                     sharedPoints = null;
                     var commonPoint_ = currentSharedPoints.First();
                     commonPoint = new Point2D(commonPoint_.X, commonPoint_.Y);
                     var oldOther_ = currentSharedPoints.Skip(1).First();
                     oldOther = new Point2D(oldOther_.X, oldOther_.Y);
                     newPoint = new Point2D(endPoint.X - Gridlet.XLength / 2.0, endPoint.Y - gridlet.YLength / 2.0);

                     var windingOldCurrentNew = GeometryUtilities.GetClockness(oldOther, currentPoint, newPoint);
                     var windingOldCurrentCommon = GeometryUtilities.GetClockness(oldOther, currentPoint, commonPoint);
                     if (windingOldCurrentNew == windingOldCurrentCommon) {
                        var temp = commonPoint;
                        commonPoint = oldOther;
                        oldOther = temp;
                     }
                  }

                  var oldOtherVector = new Vector2D(currentPoint, oldOther).ToUnitVector();
                  var commonVector = new Vector2D(currentPoint, commonPoint).ToUnitVector();
                  var newVector = new Vector2D(currentPoint, newPoint).ToUnitVector();

                  var oldAngle = Math.Acos(oldOtherVector.Dot(commonVector));
                  var newAngle = Math.Acos(newVector.Dot(commonVector));
                  var oldWinding = GeometryUtilities.GetClockness(commonPoint, currentPoint, oldOther);
                  var newWinding = GeometryUtilities.GetClockness(commonPoint, currentPoint, newPoint);

                  if (oldAngle > newAngle && oldWinding == newWinding) {
                     currentSharedPoints = sharedPoints;
                  } else {
                     finalPath.Add(oldOther);
                     currentPoint = oldOther;
                     currentSharedPoints = sharedPoints;
                  }

            //                  if (i == 4) {
            //                     Console.WriteLine(i + " SDFDFSD " + path.Count);
            //                     var currentPointVect = new Vector3((float)currentPoint.X, (float)currentPoint.Y, 0);
            //                     var commonPointVect = new Vector3((float)commonPoint.X, (float)commonPoint.Y, 0);
            //                     var oldOtherPointVect = new Vector3((float)oldOther.X, (float)oldOther.Y, 0);
            //                     var newPointVect = new Vector3((float)newPoint.X, (float)newPoint.Y, 0);
            //
            //                     Vector3.Transform(ref currentPointVect, ref meshTransform, out currentPointVect);
            //                     Vector3.Transform(ref commonPointVect, ref meshTransform, out commonPointVect);
            //                     Vector3.Transform(ref oldOtherPointVect, ref meshTransform, out oldOtherPointVect);
            //                     Vector3.Transform(ref newPointVect, ref meshTransform, out newPointVect);
            //                     e.Renderer.DrawDebugLine(currentPointVect, commonPointVect, Color.Green);
            //                     e.Renderer.DrawDebugLine(currentPointVect, oldOtherPointVect, Color.Orange);
            //                     e.Renderer.DrawDebugLine(currentPointVect, newPointVect, Color.Chocolate);
            //                     renderer.DrawCube(Matrix.Translation((float)currentPointVect.X, (float)currentPointVect.Y, 1), new Vector4(0, 0, 1, 1), false);
            //                     renderer.DrawCube(Matrix.Translation((float)commonPointVect.X, (float)commonPointVect.Y, 1), new Vector4(0, 1, 0, 1), false);
            //                     renderer.DrawCube(Matrix.Translation((float)oldOtherPointVect.X, (float)oldOtherPointVect.Y, 1), new Vector4(1, 0.5f, 0, 1), false);
            //                     renderer.DrawCube(Matrix.Translation((float)newPointVect.X, (float)newPointVect.Y, 1), new Vector4(0.5f, 0.25f, 0, 1), false);
            //
            //                     foreach (var p in finalPath) {
            //                        renderer.DrawCube(Matrix.Translation((float)p.X, (float)p.Y, 1.5f), new Vector4(1, 1, 1, 1), false);
            //                     }
            //
            //                     for (var j = 0; j < finalPath.Count - 1; j++) {
            //                        Console.WriteLine("!@#@!###!@ " + finalPath.Count);
            //                        var startCentroid = new Vector3((float)finalPath[j].X, (float)finalPath[j].Y, 0);
            //                        var endCentroid = new Vector3((float)finalPath[j + 1].X, (float)finalPath[j + 1].Y, 0);
            //
            //                        Vector3.Transform(ref startCentroid, ref meshTransform, out startCentroid);
            //                        Vector3.Transform(ref endCentroid, ref meshTransform, out endCentroid);
            //                        e.Renderer.DrawDebugLine(startCentroid, endCentroid, Color.Magenta);
            //                     }
            //                     break;
            //                  }
               }
               finalPath.Add(new Point2D(endPoint.X - Gridlet.XLength / 2.0, endPoint.Y - gridlet.YLength / 2.0));

               var simplePathLine = new Line2D(
                  new Point2D(startPoint.X - Gridlet.XLength / 2.0, startPoint.Y - gridlet.YLength / 2.0),
                  new Point2D(endPoint.X - Gridlet.XLength / 2.0, endPoint.Y - gridlet.YLength / 2.0)
               );

            //               for (var t = 0.0f; t < 1.0f; t+= 0.1f) {
            //                  var p = simplePathLine.PointAtT(t);
            //                  renderer.DrawCube(Matrix.Scaling(2) * Matrix.Translation((float)p.X, (float)p.Y, 2), new Vector4(1, 1, 1, 1), false);
            //               }

            //               var triangle = new Triangle2D(
            //                  new Point2D(-32.5, 32.5),
            //                  new Point2D(-10, 0),
            //                  new Point2D(-32.5, -32.5));
            //               MessageBox.Show(triangle.FindIntersection(simplePathLine)?.ToString() ?? "null");
            //               var abLine = new Line2D(triangle.A, triangle.B);
            //               var abIntersection = (Point2D)abLine.FindLineIntersection(simplePathLine);
            //               var bcLine = new Line2D(triangle.B, triangle.C);
            //               var bcIntersection = (Point2D)bcLine.FindLineIntersection(simplePathLine);
            //               Console.WriteLine("AB INTERSECTION: " + abLine.NearestT(abIntersection) + " " + abLine.PointAtT(abLine.NearestT(abIntersection)) + " " + abIntersection);
            //               Console.WriteLine("BC INTERSECTION: " + bcLine.NearestT(bcIntersection));

            //               var f = new Form();
            //               var pb = new PictureBox();
            //               var b = new Bitmap(100, 100);
            //               using (var g = Graphics.FromImage(b)) {
            //                  for (var t = 0.0; t < 1.0f; t += 0.05f) {
            //                     var p = abLine.PointAtT(t);
            //                     g.DrawRectangle(Pens.Red, (float)(p.X + 50 - 1), (float)(p.Y + 50 - 1), 2, 2);
            //                  }
            //
            //                  g.DrawRectangle(Pens.Orange, (float)(abIntersection.X + 50 - 3), (float)(abIntersection.Y + 50 - 3), 6, 6);
            //
            //
            //                  g.DrawRectangle(Pens.Red, (float)(triangle.A.X + 50 - 1), (float)(triangle.A.Y + 50 - 1), 2, 2);
            //                  g.DrawRectangle(Pens.Green, (float)(triangle.B.X + 50 - 1), (float)(triangle.B.Y + 50 - 1), 2, 2);
            //                  g.DrawRectangle(Pens.Blue, (float)(triangle.C.X + 50 - 1), (float)(triangle.C.Y + 50 - 1), 2, 2);
            //                  g.DrawLine(Pens.Lime, -25 + 50, -25 + 50, -20 + 50, 25 + 50);
            //               }
            //               pb.Image = b;
            //               pb.SizeMode = PictureBoxSizeMode.AutoSize;
            //               f.Controls.Add(pb);
            //               f.ClientSize = b.Size;
            //               f.Show();
            //               Application.Run();

               var tritris = mesh.Where(
                  x => new Triangle2D(
                     new Point2D(x.Points[0].Xf, x.Points[0].Yf),
                     new Point2D(x.Points[1].Xf, x.Points[1].Yf),
                     new Point2D(x.Points[2].Xf, x.Points[2].Yf)).FindIntersection(simplePathLine) != null
               ).ToArray();
               if (tritris.Any()) {
                  var sadfaces = new ICL.HashSet<DelaunayTriangle>(tritris);
                  var s = new Stack<DelaunayTriangle>();
                  s.Push(tritris.First());
                  var lastSadfacesCount = 0;
                  while (s.Any() && lastSadfacesCount != sadfaces.Count) {
                     lastSadfacesCount = sadfaces.Count;
                     var tri = s.Pop();
                     sadfaces.Remove(tri);
                     foreach (var other in sadfaces) {
                        if (other.Points.Union(tri.Points).Distinct().Count() <= 4) {
                           s.Push(other);
                        }
                     }
                  }
                  if (sadfaces.None()) {
            //                     MessageBox.Show("!@#!#!@#");
                     finalPath.Clear();
                     finalPath.Add(simplePathLine.Start);
                     finalPath.Add(simplePathLine.PointAtT(1));
                  }
               }

               Console.WriteLine("!@#!@#!@ " + tritris.SelectMany(x => x.Points).Distinct().Count() + " " + tritris.Length);

               Console.WriteLine("!@#!@##@@!#@!@!@# " + tritris.Length);
               foreach (var tri in tritris) {
                  var centroid = tri.Centroid();
                  var centroidVector = new Vector3(centroid.Xf, centroid.Yf, 0);
                  renderer.DrawCube(Matrix.Scaling(4) * Matrix.Translation(centroidVector), new Vector4(0, 1, 1, 1), false);
               }

               foreach (var p in finalPath) {
                  renderer.DrawCube(Matrix.Translation((float)p.X, (float)p.Y, 1.5f), new Vector4(1, 1, 1, 1), false);
               }

               for (var j = 0; j < finalPath.Count - 1; j++) {
                  Console.WriteLine("!@#@!###!@ " + finalPath.Count);
                  var startCentroid = new Vector3((float)finalPath[j].X, (float)finalPath[j].Y, 0);
                  var endCentroid = new Vector3((float)finalPath[j + 1].X, (float)finalPath[j + 1].Y, 0);

                  Vector3.Transform(ref startCentroid, ref meshTransform, out startCentroid);
                  Vector3.Transform(ref endCentroid, ref meshTransform, out endCentroid);
                  e.Renderer.DrawDebugLine(startCentroid, endCentroid, Color.Magenta);
               }
            } catch (Exception exsaqsd) {
               Console.WriteLine(exsaqsd);
            }

            //            for (var i = 0; i < finalPath.Count - 1; i++) {
            //               var startCentroid = new Vector3((float)finalPath[i].X - Gridlet.XLength / 2.0f, (float)finalPath[i].Y - Gridlet.YLength / 2.0f, 0);
            //               var endCentroid = new Vector3((float)finalPath[i + 1].X - Gridlet.XLength / 2.0f, (float)finalPath[i + 1].Y - Gridlet.YLength / 2.0f, 0);

            //               Vector3.Transform(ref startCentroid, ref meshTransform, out startCentroid);
            //               Vector3.Transform(ref endCentroid, ref meshTransform, out endCentroid);
            //               e.Renderer.DrawDebugLine(startCentroid, endCentroid, Color.Magenta);
            //            }
             }
        }
Ejemplo n.º 6
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 public Triangle2D(Point2D a, Vector2D v1, Vector2D v2)
     : this(a + v1, (Point2D)(a + v1), (Point2D)(a + v2))
 {
 }
Ejemplo n.º 7
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 public double Dot(Vector2D b)
 {
     return X * b.X + Y * b.Y;
 }
Ejemplo n.º 8
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 public double Distance(Vector2D b)
 {
     return (b - this).Magnitude();
 }
Ejemplo n.º 9
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 public double Cross(Vector2D b)
 {
     return X * b.Y - Y * b.X;
 }
Ejemplo n.º 10
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 public static double Dot(Vector2D a, Vector2D b)
 {
     return a.Dot(b);
 }
Ejemplo n.º 11
0
 public static double Cross(Vector2D a, Vector2D b)
 {
     return a.Cross(b);
 }