private static void AddNode(Canvas canvas, NodePort parentInput, ExpressionTreeNode expressionNode, List<NumberParam> variables, Point location, Int32 levelStep, Int32 minY, Int32 maxY)
		{
			Int32 leafs = (expressionNode.LeftNode != null ? 1 : 0) + (expressionNode.RightNode != null ? 1 : 0);
			NodeBase node = null;

			if (expressionNode.Token.IsNumber)
			{
				node = new VisiTypes.Number(Double.Parse(expressionNode.Token.TokenBody));
				canvas.AddNode(node, location);
			}

			if (expressionNode.Token.IsVariable)
			{
				Boolean exist = false;
				foreach (NumberParam param in variables)
				{
					if (param.Name == expressionNode.Token.TokenBody)
					{
						exist = true;
						node = param;
						break;
					}
				}

				if (!exist)
				{
					node = new NumberParam();
					((NumberParam)node).Name = expressionNode.Token.TokenBody;
					((NumberParam)node).Header = expressionNode.Token.TokenBody;
					variables.Add((NumberParam)node);
					canvas.AddNode(node, location);
				}
			}

			if (expressionNode.Token.IsOperator)
			{
				node = new Operator(expressionNode.Token.OperatorDescriptor);
				canvas.AddNode(node, location);

				switch (leafs)
				{
					case 1:
					{
						AddNode(canvas, node.GetInput(0), expressionNode.LeftNode, variables, new Point(location.X - levelStep, location.Y), levelStep, minY, maxY);
						break;
					}
					case 2:
					{
						Int32 y2 = (maxY - minY) / 2;
						AddNode(canvas, node.GetInput(0), expressionNode.LeftNode, variables, new Point(location.X - levelStep, minY + y2 / 2), levelStep, minY, minY + y2);
						AddNode(canvas, node.GetInput(1), expressionNode.RightNode, variables, new Point(location.X - levelStep, maxY - y2 / 2), levelStep, maxY - y2, maxY);
						break;
					}
				}
			}

			if (parentInput != null && node != null)
			{
				parentInput.Connection = node.GetOutput(0);
			}
		}
Beispiel #2
0
 public override object GetValue(NodePort port)
 {
     return(this);
 }
Beispiel #3
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 // Return the correct value of an output port when requested
 public override object GetValue(NodePort port)
 {
     return(UpdateFeature());
 }
Beispiel #4
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 public override object GetValue(NodePort port)
 {
     return(GetInputValue <bool>("a").Equals(GetInputValue <bool>("b")));
 }
Beispiel #5
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 public override object GetValue(NodePort port)
 {
     return(base.GetValue(port));
 }
Beispiel #6
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 public override object GetValue(NodePort port)
 {
     return(port.fieldName == nameof(this.output)
         ? this.GetOutput()
         : base.GetValue(port));
 }
        // Add Connector
        private ConnectorViewModel Connect(NodeViewModel headnode, NodeViewModel tailnode, NodePort headport = null, NodePort tailport = null, ConnectorViewModel connector = null, ConnectorPort connectorheadport = null, ConnectorPort connectortailport = null, String label1 = null, String label2 = null, Style style = null, Thickness margin = new Thickness())
        {
            ConnectorViewModel Connectorviewmodel = new ConnectorViewModel();

            Connectorviewmodel.ZIndex     = -1;
            Connectorviewmodel.SourceNode = headnode;
            Connectorviewmodel.TargetNode = tailnode;

            //To Represent Annotation Properties
            Connectorviewmodel.Annotations = new ObservableCollection <IAnnotation>()
            {
                new TextAnnotationViewModel()
                {
                    Text     = label2,
                    WrapText = TextWrapping.Wrap,
                    TextHorizontalAlignment = TextAlignment.Center,
                    UnitWidth = 170,
                    Margin    = margin,
                    ReadOnly  = true,
                }
            };

            if (headport != null)
            {
                Connectorviewmodel.SourcePort = headport;
            }
            else
            {
                Connectorviewmodel.SourcePort = connectorheadport;
            }

            if (tailport != null)
            {
                Connectorviewmodel.TargetPort = tailport;
            }
            else
            {
                Connectorviewmodel.TargetPort = connectortailport;
            }

            if (tailnode != null)
            {
                Connectorviewmodel.SourceConnector = connector;
            }
            else
            {
                Connectorviewmodel.TargetConnector = connector;
            }

            Connectorviewmodel.TargetDecoratorStyle = View.Resources["DecoratorStyle"] as Style;

            if ((label1 == "c3") || (label1 == "c4") || (label1 == "c5") || (label1 == "c6"))
            {
                Connectorviewmodel.TargetDecorator      = null;
                Connectorviewmodel.TargetDecoratorStyle = null;
            }

            if (style != null)
            {
                Connectorviewmodel.ConnectorGeometryStyle = style;
            }
            (Connectors as ObservableCollection <ConnectorViewModel>).Add(Connectorviewmodel);
            return(Connectorviewmodel);
        }
Beispiel #8
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 //INodeNoodles: Label das conexões
 public virtual string GetNoodleLabel(NodePort port)
 {
     return(this.name);
 }
Beispiel #9
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 public override void OnRemoveConnection(NodePort port)
 {
     base.OnRemoveConnection(port);
     DoDisConnectToList(port, ref inputs);
 }
Beispiel #10
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        public override void OnCreateConnection(NodePort from, NodePort to)
        {
            base.OnCreateConnection(from, to);

            UpdateTexture();
        }
Beispiel #11
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        public override void OnRemoveConnection(NodePort port)
        {
            base.OnRemoveConnection(port);

            PreviewTexture = null;
        }
Beispiel #12
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 public override object GetValue(NodePort port)
 {
     return(_folderRefs.Distinct().ToArray());
 }
Beispiel #13
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 public override void OnRemoveConnection(NodePort port)
 {
     UpdateAllOutputNodes();
 }
Beispiel #14
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                #pragma warning restore 0649

        public override void OnCreateConnection(NodePort @from, NodePort to)
        {
            UpdateAllOutputNodes();
        }
Beispiel #15
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 public override object GetValue(NodePort port)
 {
     return(GetInputValue("x", x) - GetInputValue("y", y));
 }
Beispiel #16
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 public override void OnCreateConnection(NodePort from, NodePort to)
 {
     base.OnCreateConnection(from, to);
     DoCreateConnectToList(from, to, ref inputs, "inputs");
 }
Beispiel #17
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 public override object GetValue(NodePort port)
 {
     return(Texture);
 }
Beispiel #18
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            public static void DrawOutputs(XNode.Node target, SerializedObject serializedObject)
            {
                NodePort outputPort = target.GetOutputPort("output");

                serializedObject.FindProperty("outputFoldout").boolValue = EditorGUILayout.Foldout(serializedObject.FindProperty("outputFoldout").boolValue, "Outputs [" + outputPort.ConnectionCount + "]", true);
                bool outputFoldout = serializedObject.FindProperty("outputFoldout").boolValue;

                GUIStyle labelStyle  = new GUIStyle(EditorStyles.label);
                GUIStyle buttonStyle = new GUIStyle(EditorStyles.miniButton);

                labelStyle.wordWrap = true;

                if (outputFoldout)
                {
                    for (int i = 0; i < outputPort.ConnectionCount; i++)
                    {
                        EditorGUILayout.BeginHorizontal();
                        NodePort outputConnectionPort = outputPort.GetConnection(i);
                        Node     outputConnectionNode = outputPort.GetConnection(i).node;

                        if (outputConnectionNode is Answer)
                        {
                            string label = (outputConnectionNode as Answer).dialogue;
                            label = label.Replace("\n", "");
                            label = label.Substring(0, Mathf.Min(32, label.Length));
                            EditorGUILayout.LabelField(string.Format("[{0}] {1}", "Answer", label, labelStyle));
                        }
                        else if (outputConnectionNode is Dialogue)
                        {
                            string label = (outputConnectionNode as Dialogue).dialogue;
                            label = label.Replace("\n", "");
                            label = label.Substring(0, Mathf.Min(32, label.Length));
                            EditorGUILayout.LabelField(string.Format("[{0}] {1}", "Dialogue", label, labelStyle));
                        }
                        else if (outputConnectionNode is Group)
                        {
                            string label = (outputConnectionNode as Group).name;
                            label = label.Replace("\n", "");
                            label = label.Substring(0, Mathf.Min(32, label.Length));
                            EditorGUILayout.LabelField(string.Format("[{0}] {1}", "Group", label, labelStyle));
                        }

                        if (GUILayout.Button("^", GUILayout.MaxHeight(20), GUILayout.MaxWidth(20)))
                        {
                            if (i <= 0)
                            {
                                return;
                            }

                            outputPort.SwitchConnections(i, i - 1);
                        }

                        if (GUILayout.Button("v", GUILayout.MaxHeight(20), GUILayout.MaxWidth(20)))
                        {
                            if (i >= outputPort.ConnectionCount - 1)
                            {
                                return;
                            }

                            outputPort.SwitchConnections(i, i + 1);
                        }

                        EditorGUILayout.EndHorizontal();
                    }
                }
            }
Beispiel #19
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        private static void AddNode(Canvas canvas, NodePort parentInput, ExpressionTreeNode expressionNode, List <NumberParam> variables, Point location, Int32 levelStep, Int32 minY, Int32 maxY)
        {
            Int32    leafs = (expressionNode.LeftNode != null ? 1 : 0) + (expressionNode.RightNode != null ? 1 : 0);
            NodeBase node  = null;

            if (expressionNode.Token.IsNumber)
            {
                node = new VisiTypes.Number(Double.Parse(expressionNode.Token.TokenBody));
                canvas.AddNode(node, location);
            }

            if (expressionNode.Token.IsVariable)
            {
                Boolean exist = false;
                foreach (NumberParam param in variables)
                {
                    if (param.Name == expressionNode.Token.TokenBody)
                    {
                        exist = true;
                        node  = param;
                        break;
                    }
                }

                if (!exist)
                {
                    node = new NumberParam();
                    ((NumberParam)node).Name   = expressionNode.Token.TokenBody;
                    ((NumberParam)node).Header = expressionNode.Token.TokenBody;
                    variables.Add((NumberParam)node);
                    canvas.AddNode(node, location);
                }
            }

            if (expressionNode.Token.IsOperator)
            {
                node = new Operator(expressionNode.Token.OperatorDescriptor);
                canvas.AddNode(node, location);

                switch (leafs)
                {
                case 1:
                {
                    AddNode(canvas, node.GetInput(0), expressionNode.LeftNode, variables, new Point(location.X - levelStep, location.Y), levelStep, minY, maxY);
                    break;
                }

                case 2:
                {
                    Int32 y2 = (maxY - minY) / 2;
                    AddNode(canvas, node.GetInput(0), expressionNode.LeftNode, variables, new Point(location.X - levelStep, minY + y2 / 2), levelStep, minY, minY + y2);
                    AddNode(canvas, node.GetInput(1), expressionNode.RightNode, variables, new Point(location.X - levelStep, maxY - y2 / 2), levelStep, maxY - y2, maxY);
                    break;
                }
                }
            }

            if (parentInput != null && node != null)
            {
                parentInput.Connection = node.GetOutput(0);
            }
        }
Beispiel #20
0
 public void UpdateData <T>()
 {
     // Check if context type has change
     if (!string.Equals(typeof(T).AssemblyQualifiedName, _declaringTypeName))
     {
         _declaringTypeName = typeof(T).AssemblyQualifiedName;
         foreach (KeyValuePair <string, SerializableInfo> pair in InfoDictionary)
         {
             pair.Value.DeclaringTypeName = _declaringTypeName;
         }
     }
     // Handle fields
     FieldInfo[] fieldInfos = typeof(T).GetFields(SerializableInfo.DefaultBindingFlags);
     foreach (FieldInfo fieldInfo in fieldInfos)
     {
         if (PortDictionary.ContainsKey(fieldInfo.Name))
         {
             continue;
         }
         SerializableInfo serializableFieldInfo = new SerializableInfo(fieldInfo);
         PortDictionary.Add(fieldInfo.Name, serializableFieldInfo.PortName);
         NodePort newPort = AddDynamicOutput(serializableFieldInfo.Type, ConnectionType.Multiple, TypeConstraint.None, serializableFieldInfo.PortName);
         InfoDictionary.Add(serializableFieldInfo.PortName, serializableFieldInfo);
         // Redirect port using FormerlySerializedAsAttribute
         FormerlySerializedAsAttribute attribute = fieldInfo.GetCustomAttribute <FormerlySerializedAsAttribute>();
         if (attribute != null && PortDictionary.ContainsKey(attribute.oldName))
         {
             GetPort(PortDictionary[attribute.oldName]).SwapConnections(newPort);
         }
     }
     // Handle properties
     PropertyInfo[] propertyInfos = typeof(T).GetProperties(SerializableInfo.DefaultBindingFlags);
     foreach (PropertyInfo propertyInfo in propertyInfos)
     {
         if (PortDictionary.ContainsKey(propertyInfo.Name))
         {
             continue;
         }
         SerializableInfo serializablePropertyInfo = new SerializableInfo(propertyInfo);
         PortDictionary.Add(propertyInfo.Name, serializablePropertyInfo.PortName);
         NodePort newPort = AddDynamicOutput(serializablePropertyInfo.Type, ConnectionType.Multiple, TypeConstraint.None, serializablePropertyInfo.PortName);
         InfoDictionary.Add(serializablePropertyInfo.PortName, serializablePropertyInfo);
         // Redirect port using FormerlySerializedAsAttribute
         FormerlySerializedAsAttribute attribute = propertyInfo.GetCustomAttribute <FormerlySerializedAsAttribute>();
         if (attribute != null && PortDictionary.ContainsKey(attribute.oldName))
         {
             GetPort(PortDictionary[attribute.oldName]).SwapConnections(newPort);
         }
     }
     // Remove old ports
     for (int i = PortDictionary.Count - 1; i >= 0; i--)
     {
         if (fieldInfos.Any(info => info.Name == PortDictionary.ElementAt(i).Key))
         {
             continue;
         }
         if (propertyInfos.Any(info => info.Name == PortDictionary.ElementAt(i).Key))
         {
             continue;
         }
         RemoveDynamicPort(PortDictionary.ElementAt(i).Value);
         InfoDictionary.Remove(PortDictionary.ElementAt(i).Value);
         PortDictionary.Remove(PortDictionary.ElementAt(i).Key);
     }
 }
        // Create Nodes,Ports and Connections
        private void CreateNodesandConnections()
        {
            // Create Nodes
            NodeViewModel node1  = AddNode(50, 100, 100, 50, label: "Employee");
            NodeViewModel node2  = AddNode(50, 100, 300, 50, label: "Team Lead");
            NodeViewModel node3  = AddNode(50, 100, 500, 50, label: "Dashboard");
            NodeViewModel node4  = AddNode(50, 100, 700, 50, label: "Manager");
            NodeViewModel node8  = AddNode(50, 100, 100, 500);
            NodeViewModel node9  = AddNode(50, 100, 300, 500);
            NodeViewModel node10 = AddNode(50, 100, 500, 500);
            NodeViewModel node11 = AddNode(50, 100, 700, 500);

            // Connect Nodes and Ports
            ConnectorViewModel connector3 = Connect(node1, node8, label1: "c3", style: View.Resources["GetGrayLineStyle"] as Style);
            ConnectorViewModel connector4 = Connect(node2, node9, label1: "c4", style: View.Resources["GetGrayLineStyle"] as Style);
            ConnectorViewModel connector5 = Connect(node3, node10, label1: "c5", style: View.Resources["GetGrayLineStyle"] as Style);
            ConnectorViewModel connector6 = Connect(node4, node11, label1: "c6", style: View.Resources["GetGrayLineStyle"] as Style);
            NodeViewModel      node5      = AddNode(180, 10, 300, 250, style: View.Resources["GetNodeStyle"] as Style);
            NodeViewModel      node6      = AddNode(25, 10, 500, 250, style: View.Resources["GetNodeStyle"] as Style);
            NodeViewModel      node7      = AddNode(48, 10, 700, 348, style: View.Resources["GetNodeStyle"] as Style);
            NodeViewModel      node26     = AddNode(240, 10, 100, 278, style: View.Resources["GetNodeStyle"] as Style);

            // Create Ports to the Nodes and Connectors
            NodePort port1   = addPort(node5, 0, 0.053);
            NodePort port111 = addPort(node5, 1, 0.5);
            NodePort port12  = addPort(node5, 1, 0.938);
            NodePort port2   = addPort(node6, 0, 0.5);
            NodePort port3   = addPort(node7, 0, 0.1);
            NodePort port10  = addPort(node7, 0, 0.91);
            NodePort port11  = addPort(node26, 1, 0.049);
            NodePort port7   = addPort(node26, 1, 0.97);

            node5.Ports = new ObservableCollection <INodePort>()
            {
                port1,
                port111,
                port12
            };
            node6.Ports = new ObservableCollection <INodePort>()
            {
                port2
            };
            node7.Ports = new ObservableCollection <INodePort>()
            {
                port3,
                port10
            };
            node26.Ports = new ObservableCollection <INodePort>()
            {
                port11,
                port7
            };

            ConnectorViewModel connector1 = Connect(node5, node6, headport: port111, tailport: port2, label2: "Check Employee availability and task status", style: View.Resources["GetBlueLineStyle"] as Style, margin: new Thickness(0, 20, 0, 0));
            ConnectorViewModel connector2 = Connect(node5, node7, headport: port12, tailport: port3, label2: "Forward Leave Request", style: View.Resources["GetBlueLineStyle"] as Style, margin: new Thickness(0, 10, 0, 0));
            ConnectorViewModel connector7 = Connect(node26, node5, headport: port11, tailport: port1, label2: "Leave Request", style: View.Resources["GetBlueLineStyle"] as Style, margin: new Thickness(0, 10, 0, 0));

            ConnectorPort port5 = addPort(connector4, 0.78);
            ConnectorPort port6 = addPort(connector4, 0.73);

            connector4.Ports = new ObservableCollection <IConnectorPort>()
            {
                port5,
                port6
            };

            ConnectorViewModel connector8  = Connect(null, node26, tailport: port7, connector: connector4, connectorheadport: port5, label2: "Leave Approval", style: View.Resources["GetLineDashStyle"] as Style, margin: new Thickness(0, -10, 0, 0));
            ConnectorViewModel connector10 = Connect(node7, null, headport: port10, connector: connector4, connectortailport: port6, label2: "No Objection", style: View.Resources["GetLineDashStyle"] as Style, margin: new Thickness(0, -10, 0, 0));
        }
        /// <summary>
        /// Updates the ports fields displayed in the editor
        /// </summary>
        internal void UpdatePortFields(MonoBehaviour gameComponent, bool overrideScript = false)
        {
            if (gameComponent == null)
            {
                return;
            }

            if (overrideScript)
            {
                // Update the script present in the node (although this might return null if it is a clone and gets destroyed?)
                SetScript(gameComponent);
            }

            // Gets all fields information from the game component (using System.Reflection)
            FieldInfo[] serializedFields = m_ScriptInternal.GetType().GetFields(BindingFlags.Instance | BindingFlags.Public);

            // Go through all the fields
            for (int i = 0; i < serializedFields.Length; i++)
            {
                var fieldToUse = serializedFields[i];

                // Check if the field is marked with the "SendToIMLController" attribute
                SendToIMLController dataForIMLController = Attribute.GetCustomAttribute(fieldToUse, typeof(SendToIMLController)) as SendToIMLController;
                // We check now if the field is marked with the "PullFromIMLController" attribute
                PullFromIMLController dataFromIMLController = Attribute.GetCustomAttribute(fieldToUse, typeof(PullFromIMLController)) as PullFromIMLController;
                // Define flags to identify attribute behaviour
                bool isInputData = false, isOutputData = false;
                // Update flags
                if (dataForIMLController != null)
                {
                    isInputData = true;
                }
                if (dataFromIMLController != null)
                {
                    isOutputData = true;
                }

                // If the field is marked as either input or output...
                if (isInputData || isOutputData)
                {
                    // Debug type of that value in console
                    //Debug.Log(fieldToUse.Name + " Used in IMLComponent, With Type: " + fieldToUse.FieldType + ", With Value: " + fieldToUse.GetValue(gameComponent).ToString());

                    // Make sure that the dictionaries are initialised
                    if (m_PortsPerFieldInfo == null)
                    {
                        m_PortsPerFieldInfo = new NodePortFieldInfoDictionary();
                    }

                    // Check if the dictionary DOESN'T contain a fieldInfo for this reflected value, and then create nodes and dictionary values
                    if (!m_PortsPerFieldInfo.ContainsValue(fieldToUse))
                    {
                        // Secondly, we create a port (based on its type) for this fieldInfo and add it to the node
                        NodePort newPort = null;
                        // Add port to node
                        if (isInputData)
                        {
                            newPort = AddDynamicOutput(fieldToUse.FieldType, fieldName: fieldToUse.Name);
                        }
                        else if (isOutputData)
                        {
                            newPort = AddDynamicInput(fieldToUse.FieldType, fieldName: fieldToUse.Name);
                        }

                        // Add that to the dictionary
                        m_PortsPerFieldInfo.Add(newPort, fieldToUse);
                    }
                    // If the dictionary already contains a fieldInfo (and it is output), update it
                    else if (isOutputData)
                    {
                        // Get the port linked to that field info
                        var port = m_PortsPerFieldInfo.GetKey(fieldToUse);

                        FieldInfo field;
                        m_PortsPerFieldInfo.TryGetValue(port, out field);


                        // Set value by reflection
                        field.SetValue(m_ScriptInternal, port.GetInputValue());
                    }
                }
            }
        }
Beispiel #23
0
 // Return the correct value of an output port when requested
 public override object GetValue(NodePort port)
 {
     arrayToOutput = Value;
     return(arrayToOutput);
 }
Beispiel #24
0
 // Return the correct value of an output port when requested
 public override object GetValue(NodePort port)
 {
     FloatToOutput = Value;
     return(FloatToOutput);
 }
Beispiel #25
0
 public void PlanRemoveTileInput(int id, NodePort np)
 {
     _toRemove[np] = id;
 }
Beispiel #26
0
 public override object GetValue(NodePort port)
 {
     NodeVariables.Texture Texture = GetInputValue("Texture", this.Texture);
     return(Texture);
 }
Beispiel #27
0
 public override object GetValue(NodePort port)
 {
     return(Execute());
 }
 public override void OnRemoveConnection(NodePort port)
 {
     Update();
 }
Beispiel #29
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 // Return the correct value of an output port when requested
 public override object GetValue(NodePort port)
 {
     return(null);        // Replace this
 }
 public override object GetValue(NodePort port)
 {
     return(_outputFolders?.Distinct().ToArray());
 }
Beispiel #31
0
		/*
		 * UpdateParentNode
		 */

		public void UpdateParentNode()
		{
			if (_parentNode != null)
			{
				NodePort[] oldInputs = new NodePort[_parentNode.InputsLength];
				_parentNode.Inputs.CopyTo(oldInputs, 0);

				NodePort[] oldOutputs = null;

				if (_parentNode.Outputs != null)
				{
					oldOutputs = new NodePort[_parentNode.OutputsLength];
					_parentNode.Outputs.CopyTo(oldOutputs, 0);
				}

				Int32 inputCount = 0;
				Int32 outputCount = 0;

				for (Int32 i = 0; i < _nodes.Count; i++)
				{
					NodeBase currentNode = _nodes[i];

					if (currentNode is ProgramInput)
					{
						inputCount++;
					}
					else if (currentNode is ProgramOutput)
					{
						outputCount++;
					}
				}

				_parentNode.CreateInputs(inputCount + 1);

				if ((inputCount + 1) >= oldInputs.Length)
				{
					/* Set new inputs equal to old inputs. */
					for (Int32 i = 0; i < oldInputs.Length; i++)
					{
						_parentNode.Inputs[i] = oldInputs[i];
					}

					/* Add new inputs. */
					for (Int32 i = oldInputs.Length; i < inputCount + 1; i++)
					{
						_parentNode.SetInput(i, "", 0.0);
					}
				}
				else
				{
					/* An input was removed. */
					for (Int32 i = 0; i < inputCount + 1; i++)
					{
						_parentNode.Inputs[i] = oldInputs[i];
					}
				}

				_parentNode.CreateOutputs(outputCount);

				if (oldOutputs != null)
				{
					if (outputCount >= oldOutputs.Length)
					{
						for (Int32 i = 0; i < oldOutputs.Length; i++)
						{
							_parentNode.Outputs[i] = oldOutputs[i];
						}

						for (Int32 i = oldOutputs.Length; i < outputCount; i++)
						{
							_parentNode.SetOutput(i, "", 0.0);
						}
					}
					else
					{
						/* An output was removed. */
						for (Int32 i = 0; i < outputCount; i++)
						{
							_parentNode.Outputs[i] = oldOutputs[i];
						}
					}
				}
				else
				{
					/* All new outputs. */
					for (Int32 i = 0; i < outputCount; i++)
					{
						_parentNode.SetOutput(i, "", 0.0);
					}
				}
			}
		}
 public override object GetValue(NodePort port)
 {
     return(Previous);
 }