コード例 #1
0
        private void InteractionHandler()
        {
            //Add new Geometry
            if (Keyboard.GetKey(KeyCodes.D1) && _keyTimeout < 0)
            {
                _keyTimeout = 1;
                Geometry geometry = CreatePrimitiveGeometry.CreateCuboidGeometry(1, 1, 1);
                AddGeometryToSceneNode(geometry, new float3(0, 0, 0));
            }
            if (Keyboard.GetKey(KeyCodes.D2) && _keyTimeout < 0)
            {
                _keyTimeout = 1;
                Geometry geometry = CreatePrimitiveGeometry.CreatePyramidGeometry(1, 1, 1);
                AddGeometryToSceneNode(geometry, new float3(0, 0, 0));
            }
            if (Keyboard.GetKey(KeyCodes.D3) && _keyTimeout < 0)
            {
                _keyTimeout = 1;
                Geometry geometry = CreatePrimitiveGeometry.CreateConeGeometry(1, 1, 15);
                AddGeometryToSceneNode(geometry, new float3(0, 0, 0));
            }
            if (Keyboard.GetKey(KeyCodes.D4) && _keyTimeout < 0)
            {
                _keyTimeout = 1;
                Geometry geometry = CreatePrimitiveGeometry.CreateSpehreGeometry(1, 30, 15);
                AddGeometryToSceneNode(geometry, new float3(0, 0, 0));
            }
            _keyTimeout -= DeltaTime;

            //following actions are only allowed if something is selected
            if (_selectedNode == null)
            {
                return;
            }

            //Translate Geometry
            if (Keyboard.GetKey(KeyCodes.G))
            {
                _isTranslating = true;
            }
            if (_isTranslating)
            {
                float3 worldPos = new float3(Mouse.Velocity.x * .0001f, Mouse.Velocity.y * -.0001f, Mouse.WheelVel * .001f);
                _selectedNode.GetTransform().Translation += worldPos.xyz;

                if (Mouse.LeftButton)
                {
                    _isTranslating = false;
                }
            }

            //Scaling Geometry
            if (Keyboard.GetKey(KeyCodes.S))
            {
                _isScaling = true;
            }
            if (_isScaling)
            {
                _selectedNode.GetTransform().Scale += new float3(Mouse.Velocity.y, Mouse.Velocity.y, Mouse.Velocity.y) * .0001f;
                if (Mouse.LeftButton)
                {
                    _isScaling = false;
                }
            }

            //DeleteGeom
            if (Keyboard.GetKey(KeyCodes.Delete) && _keyTimeout < 0)
            {
                _keyTimeout = 1;
                int currentGeometryIndex = _parentNode.Children.IndexOf(_selectedNode);
                _activeGeometrys.Remove(currentGeometryIndex);

                Dictionary <int, Geometry> zwerg = new Dictionary <int, Geometry>();
                foreach (int key in _activeGeometrys.Keys)
                {
                    if (key > currentGeometryIndex)
                    {
                        Geometry test = _activeGeometrys[key];
                        zwerg.Add(key - 1, test);
                    }
                    else
                    {
                        zwerg.Add(key, _activeGeometrys[key]);
                    }
                }

                _activeGeometrys.Clear();
                foreach (KeyValuePair <int, Geometry> item in zwerg)
                {
                    _activeGeometrys.Add(item.Key, item.Value);
                }

                _parentNode.Children.RemoveAt(currentGeometryIndex);
                _selectedNode = null;
                _currentPick  = null;
            }

            //Insert
            if (Keyboard.GetKey(KeyCodes.I) && _keyTimeout < 0)
            {
                _keyTimeout = .25f;
                int       currentGeometryIndex    = _parentNode.Children.IndexOf(_selectedNode);
                SceneNode currentSelection        = _parentNode.Children[currentGeometryIndex];
                Geometry  currentSelectedGeometry = _activeGeometrys[currentGeometryIndex];

                currentSelectedGeometry.InsetFace(rng.Next(4, currentSelectedGeometry.GetAllFaces().Count()), .5f);
                Geometry copy = currentSelectedGeometry.CloneGeometry();
                _activeGeometrys[currentGeometryIndex] = copy;
                currentSelectedGeometry.Triangulate();

                JometriMesh geometryMesh  = new JometriMesh(currentSelectedGeometry);
                Mesh        meshComponent = new Mesh
                {
                    Vertices  = geometryMesh.Vertices,
                    Triangles = geometryMesh.Triangles,
                    Normals   = geometryMesh.Normals,
                };
                currentSelection.Components[2] = meshComponent;
            }

            //Extrude
            if (Keyboard.GetKey(KeyCodes.E) && _keyTimeout < 0)
            {
                _keyTimeout = .25f;
                int       currentGeometryIndex    = _parentNode.Children.IndexOf(_selectedNode);
                SceneNode currentSelection        = _parentNode.Children[currentGeometryIndex];
                Geometry  currentSelectedGeometry = _activeGeometrys[currentGeometryIndex];

                currentSelectedGeometry.ExtrudeFace(rng.Next(4, currentSelectedGeometry.GetAllFaces().Count()), 1);
                Geometry copy = currentSelectedGeometry.CloneGeometry();
                _activeGeometrys[currentGeometryIndex] = copy;
                currentSelectedGeometry.Triangulate();

                JometriMesh geometryMesh  = new JometriMesh(currentSelectedGeometry);
                Mesh        meshComponent = new Mesh
                {
                    Vertices  = geometryMesh.Vertices,
                    Triangles = geometryMesh.Triangles,
                    Normals   = geometryMesh.Normals,
                };
                currentSelection.Components[2] = meshComponent;
            }

            //Add Catmull-Clark
            if (Keyboard.GetKey(KeyCodes.C) && _keyTimeout < 0)
            {
                _keyTimeout = .25f;
                int       currentGeometryIndex    = _parentNode.Children.IndexOf(_selectedNode);
                SceneNode currentSelection        = _parentNode.Children[currentGeometryIndex];
                Geometry  currentSelectedGeometry = _activeGeometrys[currentGeometryIndex];

                currentSelectedGeometry = SubdivisionSurface.CatmullClarkSubdivision(currentSelectedGeometry);
                Geometry copy = currentSelectedGeometry.CloneGeometry();
                _activeGeometrys[currentGeometryIndex] = copy;
                currentSelectedGeometry.Triangulate();

                JometriMesh geometryMesh  = new JometriMesh(currentSelectedGeometry);
                Mesh        meshComponent = new Mesh
                {
                    Vertices  = geometryMesh.Vertices,
                    Triangles = geometryMesh.Triangles,
                    Normals   = geometryMesh.Normals,
                };
                currentSelection.Components[2] = meshComponent;
            }
        }