private void Start()
        {
            Polygon2f polygon = CreatePolygon2.FromCircle(new Vector2f(), 1.8f, 32);

            ConformingCriteria criteria = new ConformingCriteria();

            criteria.angBounds  = 0.125f;
            criteria.lenBounds  = 0.2f;
            criteria.iterations = 100;

            var constructor = new FBMeshConstructor <FBVertex2f, FBFace>();

            ConformingTriangulation2.Triangulate(polygon, constructor, criteria);
            mesh = constructor.PopMesh();

            int count = mesh.Vertices.Count;

            positions = new List <Vector2f>();
            for (int i = 0; i < mesh.Vertices.Count; i++)
            {
                positions.Add(mesh.Vertices[i].Position);
            }

            indices = mesh.CreateFaceIndices(3);

            CreateConnectionLines(mesh);
        }
Exemple #2
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        protected virtual void Update()
        {
            if (Input.GetKeyDown(KeyCode.F1))
            {
                ResetInput();
                MadePolygon = true;
                OnPolygonComplete(CreatePolygon2.FromBox(new Vector2f(-1), new Vector2f(1)));
            }
            else if (Input.GetKeyDown(KeyCode.F2))
            {
                ResetInput();
                Polygon2f box  = CreatePolygon2.FromBox(new Vector2f(-1), new Vector2f(1));
                Polygon2f hole = CreatePolygon2.FromBox(new Vector2f(-0.5f), new Vector2f(0.5f));
                hole.MakeCW();
                box.AddHole(hole);
                MadePolygon = true;
                OnPolygonComplete(box);
            }
            else if (Input.GetKeyDown(KeyCode.F3))
            {
                ResetInput();
                Polygon2f circle = CreatePolygon2.FromCircle(new Vector2f(-1), 1, 16);
                MadePolygon = true;
                OnPolygonComplete(circle);
            }
            else if (Input.GetKeyDown(KeyCode.F4))
            {
                ResetInput();
                Polygon2f circle = CreatePolygon2.FromCircle(new Vector2f(0), 1, 16);
                Polygon2f hole   = CreatePolygon2.FromCircle(new Vector2f(0), 0.5f, 16);
                hole.MakeCW();
                circle.AddHole(hole);
                MadePolygon = true;
                OnPolygonComplete(circle);
            }
            else if (Input.GetKeyDown(KeyCode.F5))
            {
                ResetInput();
                Polygon2f capsule = CreatePolygon2.FromCapsule(new Vector2f(0), 1, 1, 16);
                MadePolygon = true;
                OnPolygonComplete(capsule);
            }
            else if (Input.GetKeyDown(KeyCode.F6))
            {
                ResetInput();
                Polygon2f cathedral = CreatePolygon2.FromCapsule(new Vector2f(0), 1, 1, 16);

                for (float x = -0.5f; x <= 0.5f; x += 1.0f)
                {
                    for (float y = -0.75f; y <= 0.75f; y += 0.5f)
                    {
                        Polygon2f pillar = CreatePolygon2.FromCircle(new Vector2f(x, y), 0.1f, 16);
                        pillar.MakeCW();
                        cathedral.AddHole(pillar);
                    }
                }

                MadePolygon = true;
                OnPolygonComplete(cathedral);
            }
            else
            {
                bool leftMouseClicked = Input.GetMouseButtonDown(0);

                if (leftMouseClicked)
                {
                    Vector2f point = GetMousePosition();
                    OnLeftClick(point);
                }

                if (Input.GetKeyDown(KeyCode.Space))
                {
                    ResetInput();
                    OnPolygonCleared();
                }
                else if (!MadePolygon)
                {
                    Vector2f point = GetMousePosition();
                    point = SnapToPolygon(point);

                    if (leftMouseClicked)
                    {
                        if (Points == null)
                        {
                            CreatePoints();
                            AddPoint(point);
                            AddPoint(point);
                        }
                        else
                        {
                            if (PolygonClosed())
                            {
                                ClosePolygon();
                                MadePolygon = true;

                                OnPolygonComplete(new Polygon2f(Points.ToArray()));
                            }
                            else
                            {
                                AddPoint(point);
                            }
                        }
                    }
                    else
                    {
                        MoveLastPoint(point);
                    }
                }
            }
        }