///// <summary>
///// Fetches every node connection declaration for each node type for later use
///// </summary>
//public static void FetchNodeConnectionDeclarations()
//{
// nodePortDeclarations = NodeSystemSetting.Inst.NodePortDec;
//}
/// <summary>
/// Updates all node connection ports in the given node and creates or adjusts them according to the declaration
/// </summary>
public static void UpdateConnectionPorts(Node node)
{
foreach (ConnectionPortDeclaration portDecl in GetPortDeclarationEnumerator(node, true))
{
ConnectionPort port = (ConnectionPort)portDecl.portField.GetValue(node);
if (port == null)
{ // Create new port from declaration
port = portDecl.portInfo.CreateNew(node);
portDecl.portField.SetValue(node, port);
}
else
{ // Check port values against port declaration
portDecl.portInfo.UpdateProperties(port);
}
}
}
/// <summary>
/// Removes the connection of this port to the specified port if existant
/// </summary>
public void RemoveConnection(ConnectionPort port, bool silent = false)
{
Undo.RecordObjects(new [] { this, port }, "NodeEditor_连接移除保存");
if (port == null)
{
connections.RemoveAll(p => p != null);
return;
}
if (!silent)
{
NodeEditorCallbacks.IssueOnRemoveConnection(this, port);
}
port.connections.Remove(this);
connections.Remove(port);
}
/// <summary>
/// Returns whether every direct ancestor has been calculated
/// </summary>
public bool ancestorsCalculated()
{
for (int i = 0; i < inputPorts.Count; i++)
{
ConnectionPort port = inputPorts[i];
for (int t = 0; t < port.connections.Count; t++)
{
if (!port.connections[t].body.calculated)
{
return(false);
}
}
}
return(true);
}
public virtual bool IsCompatibleWith(ConnectionPort port)
{
if (port.GetType() != ConnectionType)
{
return(false);
}
if (port.styleID != StyleID)
{
return(false);
}
if (!(Direction == Direction.None && port.direction == Direction.None) &&
!(Direction == Direction.In && port.direction == Direction.Out) &&
!(Direction == Direction.Out && port.direction == Direction.In))
{
return(false);
}
return(true);
}
public static void IssueOnRemoveConnection(ConnectionPort port1, ConnectionPort port2)
{
if (OnRemoveConnection != null)
{
OnRemoveConnection.Invoke(port1, port2);
}
for (int cnt = 0; cnt < receiverCount; cnt++)
{
if (callbackReceiver [cnt] == null)
{
callbackReceiver.RemoveAt(cnt--);
}
else
{
callbackReceiver [cnt].OnRemoveConnection(port1, port2);
}
}
}
public static void IssueOnAddConnectionPort(ConnectionPort connectionPort)
{
if (OnAddConnectionPort != null)
{
OnAddConnectionPort.Invoke(connectionPort);
}
for (int cnt = 0; cnt < receiverCount; cnt++)
{
if (callbackReceiver [cnt] == null)
{
callbackReceiver.RemoveAt(cnt--);
}
else
{
callbackReceiver [cnt].OnAddConnectionPort(connectionPort);
}
}
}
/// <summary>
/// Returns all node IDs that can automatically connect to the specified port.
/// If port is null, all node IDs are returned.
/// </summary>
public static List <string> getCompatibleNodes(ConnectionPort port)
{
if (port == null)
{
return(NodeTypes.nodes.Keys.ToList());
}
List <string> compatibleNodes = new List <string> ();
foreach (NodeTypeData nodeData in NodeTypes.nodes.Values)
{ // Iterate over all nodes to check compability of any of their connection ports
if (ConnectionPortManager.GetPortDeclarations(nodeData.typeID).Any(
(ConnectionPortDeclaration portDecl) => portDecl.portInfo.IsCompatibleWith(port)))
{
compatibleNodes.Add(nodeData.typeID);
}
}
return(compatibleNodes);
}
public override bool IsCompatibleWith(ConnectionPort port)
{
if (!(Direction == Direction.None && port.direction == Direction.None) &&
!(Direction == Direction.In && port.direction == Direction.Out) &&
!(Direction == Direction.Out && port.direction == Direction.In))
{
return(false);
}
ValueConnectionKnob valueKnob = port as ValueConnectionKnob;
if (valueKnob == null)
{
return(false);
}
Type knobType = ConnectionPortStyles.GetValueType(StyleID);
return(knobType.IsAssignableFrom(valueKnob.valueType));
}
public static void ReinstateNode(Node node, List <ConnectionPort> connectedPorts)
{
if (node == null)
{ // Not critical. Happens when undo records are triggered, but it's canvas has been unloaded
// Debug.LogWarning("Lost reference to Undo SO 'node'!");
return;
}
if (connectedPorts == null) // Should not happen if node has not been lost
{
Debug.LogWarning("Lost reference to Undo SO 'connectedPorts'!");
}
node.canvas.nodes.Remove(node);
node.canvas.nodes.Add(node);
ConnectionPortManager.UpdateConnectionPorts(node);
if (connectedPorts != null)
{
int portIndex = 0;
for (int i = 0; i < connectedPorts.Count; i++)
{
if (connectedPorts[i] == null)
{ // 'Decode' null-seperated list
portIndex++;
continue;
}
if (node.connectionPorts.Count <= portIndex)
{
Debug.LogWarning("Misaligned port count in reinstated node!");
break;
}
ConnectionPort port1 = node.connectionPorts[portIndex], port2 = connectedPorts[i];
// Workaround for undo records created in playmode that have being deleted (by Unity) after exiting
if (port1.body.canvas.nodes.Contains(port1.body) && port2.body.canvas.nodes.Contains(port2.body))
{
port1.TryApplyConnection(port2, true);
}
}
if (node.connectionPorts.Count > portIndex)
{
Debug.LogWarning("Misaligned port count in reinstated node!");
}
}
}
/// <summary>
/// Removes the connection of this port to the specified port if existant
/// </summary>
public void RemoveConnection(ConnectionPort port, bool silent = false)
{
if (port == null)
{
connections.RemoveAll(p => p != null);
return;
}
if (!silent)
{
NodeEditorCallbacks.IssueOnRemoveConnection(this, port);
}
port.connections.Remove(this);
connections.Remove(port);
if (!silent)
{
body.canvas.OnNodeChange(body);
}
}
/// <summary>
/// Determines whether a connection can be applied between this port and the specified port
/// </summary>
public virtual bool CanApplyConnection(ConnectionPort port)
{
if (port == null || body == port.body || connections.Contains(port))
{
return(false);
}
if (direction == Direction.None && port.direction == Direction.None)
{
return(true); // None-Directive connections can always connect
}
if (direction == Direction.In && port.direction != Direction.Out)
{
return(false); // Cannot connect inputs with anything other than outputs
}
if (direction == Direction.Out && port.direction != Direction.In)
{
return(false); // Cannot connect outputs with anything other than inputs
}
if (!body.canvas.allowRecursion)
{
// Assure no loop would be created
bool loop;
if (direction == Direction.Out)
{
loop = body.isChildOf(port.body);
}
else
{
loop = port.body.isChildOf(body);
}
if (loop)
{
// Loop would be created, not allowed
Debug.LogWarning("Cannot apply connection: Recursion detected!");
return(false);
}
}
return(true);
}
/// <summary>
/// Applies a connection between between this port and the specified port.
/// 'CanApplyConnection' has to be checked before to avoid interferences!
/// </summary>
public void ApplyConnection(ConnectionPort port, bool silent = false)
{
if (port == null)
{
return;
}
if (maxConnectionCount == ConnectionCount.Single && connections.Count > 0)
{ // Respect maximum connection count on this port
RemoveConnection(connections[0], silent);
connections.Clear();
}
connections.Add(port);
if (port.maxConnectionCount == ConnectionCount.Single && port.connections.Count > 0)
{ // Respect maximum connection count on the other port
port.RemoveConnection(port.connections[0], silent);
port.connections.Clear();
}
port.connections.Add(this);
#if UNITY_EDITOR
if (!silent)
{ // Create Undo record
// Important: Copy variables used within anonymous functions within same level (this if block) for correct serialization!
ConnectionPort port1 = this, port2 = port;
UndoPro.UndoProManager.RecordOperation(
() => NodeEditorUndoActions.CreateConnection(port1, port2),
() => NodeEditorUndoActions.DeleteConnection(port1, port2),
"Create Connection");
}
#endif
if (!silent)
{ // Callbacks
port.body.OnAddConnection(port, this);
body.OnAddConnection(this, port);
NodeEditorCallbacks.IssueOnAddConnection(this, port);
body.canvas.OnNodeChange(direction == Direction.In? port.body : body);
}
}
/// <summary>
/// Recursively checks whether this node is in a loop
/// </summary>
internal bool isInLoop()
{
if (BeginRecursiveSearchLoop())
{
return(this == startRecursiveSearchNode);
}
for (int i = 0; i < inputPorts.Count; i++)
{
ConnectionPort port = inputPorts[i];
for (int t = 0; t < port.connections.Count; t++)
{
if (port.connections[t].body.isInLoop())
{
StopRecursiveSearchLoop();
return(true);
}
}
}
EndRecursiveSearchLoop();
return(false);
}
/// <summary>
/// Determines whether a connection can be applied between this port and the specified port
/// </summary>
public virtual bool CanApplyConnection(ConnectionPort port)
{
if (port == null || body == port.body || connections.Contains(port))
{
return(false);
}
if (direction == Direction.None && port.direction == Direction.None)
{
return(true); // None-Directive connections can always connect
}
if (direction == Direction.In && port.direction != Direction.Out)
{
return(false); // Cannot connect inputs with anything other than outputs
}
if (direction == Direction.Out && port.direction != Direction.In)
{
return(false); // Cannot connect outputs with anything other than inputs
}
if (styleID != port.styleID)
{
return(false); // Cannot connect two different styles
}
if (direction == Direction.Out) // Let inputs handle checks for recursion
{
return(port.CanApplyConnection(this));
}
if (port.body.isChildOf(body))
{ // Recursive
if (!port.body.allowsLoopRecursion(body))
{
// TODO: Generic Notification
Debug.LogWarning("Cannot apply connection: Recursion detected!");
return(false);
}
}
return(true);
}
/// <summary>
/// Removes the connection of this port to the specified port if existant
/// </summary>
public void RemoveConnection(ConnectionPort port, bool silent = false)
{
#if UNITY_EDITOR
if (silent == false && port != null)
{ // Undo record
// Important: Copy variables used within anonymous functions within same level (this if block) for correct serialization!
ConnectionPort port1 = this, port2 = port;
UndoPro.UndoProManager.RecordOperation(
() => NodeEditorUndoActions.DeleteConnection(port1, port2),
() => NodeEditorUndoActions.CreateConnection(port1, port2),
"Delete Connection");
}
#endif
if (port == null)
{
Debug.LogWarning("Cannot delete null port!");
//connections.RemoveAll (p => p != null);
return;
}
if (!silent)
{
port.body.OnRemoveConnection(port, this);
this.body.OnRemoveConnection(this, port);
NodeEditorCallbacks.IssueOnRemoveConnection(this, port);
}
port.connections.Remove(this);
connections.Remove(port);
if (!silent)
{
body.canvas.OnNodeChange(body);
}
}
/// <summary>
/// Returns an enumerator of type ConnectionPortDeclaration over all port declarations of the given node
/// </summary>
public static IEnumerable GetPortDeclarationEnumerator(Node node, bool triggerUpdate = false)
{
List <ConnectionPort> declaredConnectionPorts = new List <ConnectionPort> ();
ConnectionPortDeclaration[] portDecls;
if (nodePortDeclarations.TryGetValue(node.GetID, out portDecls))
{
foreach (ConnectionPortDeclaration portDecl in portDecls)
{ // Iterate over each connection port and yield it's declaration
yield return(portDecl);
ConnectionPort port = (ConnectionPort)portDecl.portField.GetValue(node);
if (port != null)
{
declaredConnectionPorts.Add(port);
}
}
}
if (triggerUpdate)
{ // Update lists as values might have changes when calling this function
node.staticConnectionPorts = declaredConnectionPorts;
UpdateRepresentativePortLists(node);
}
}
/// <summary>
/// Creates a node of the specified ID at pos on the current canvas, optionally auto-connecting the specified output to a matching input
/// </summary>
public static Node Create(string nodeID, Vector2 pos, ConnectionPort connectingPort = null, bool silent = false, bool init = true)
{
return(Create(nodeID, pos, NodeEditor.curNodeCanvas, connectingPort, silent, init));
}
/// <summary>
/// Callback when the given port on this node was assigned a new connection
/// </summary>
protected internal virtual void OnAddConnection(ConnectionPort port, ConnectionPort connection)
{
}
/// <summary>
/// Creates a working copy of the specified nodeCanvas, and optionally also of it's associated editorStates.
/// This breaks the link of this object to any stored assets and references. That means, that all changes to this object will have to be explicitly saved.
/// </summary>
public static NodeCanvas CreateWorkingCopy(NodeCanvas nodeCanvas, bool editorStates = true)
{
if (nodeCanvas == null)
{
return(null);
}
// Lists holding initial and cloned version of each ScriptableObject for later replacement of references
List <ScriptableObject> allSOs = new List <ScriptableObject> ();
List <ScriptableObject> clonedSOs = new List <ScriptableObject> ();
System.Func <ScriptableObject, ScriptableObject> copySOs = (ScriptableObject so) => ReplaceSO(allSOs, clonedSOs, so);
// Clone and enter the canvas object and it's referenced SOs
nodeCanvas = AddClonedSO(allSOs, clonedSOs, nodeCanvas);
AddClonedSOs(allSOs, clonedSOs, nodeCanvas.GetScriptableObjects());
// Iterate over the core ScriptableObjects in the canvas and clone them
for (int nodeCnt = 0; nodeCnt < nodeCanvas.nodes.Count; nodeCnt++)
{
Node node = nodeCanvas.nodes[nodeCnt];
// Clone Node and additional scriptableObjects
Node clonedNode = AddClonedSO(allSOs, clonedSOs, node);
AddClonedSOs(allSOs, clonedSOs, clonedNode.GetScriptableObjects());
// Update representative port list connectionPorts with all ports and clone them
ConnectionPortManager.UpdatePortLists(clonedNode);
AddClonedSOs(allSOs, clonedSOs, clonedNode.connectionPorts);
}
// Replace every reference to any of the initial SOs of the first list with the respective clones of the second list
nodeCanvas.CopyScriptableObjects(copySOs);
for (int nodeCnt = 0; nodeCnt < nodeCanvas.nodes.Count; nodeCnt++)
{ // Replace SOs in all Nodes
Node node = nodeCanvas.nodes[nodeCnt];
// Replace node and additional ScriptableObjects with their copies
Node clonedNode = nodeCanvas.nodes[nodeCnt] = ReplaceSO(allSOs, clonedSOs, node);
clonedNode.CopyScriptableObjects(copySOs);
// Replace ConnectionPorts
foreach (ConnectionPortDeclaration portDecl in ConnectionPortManager.GetPortDeclarationEnumerator(clonedNode, true))
{ // Iterate over each static port declaration and replace it with it's connections
ConnectionPort port = (ConnectionPort)portDecl.portField.GetValue(clonedNode);
port = ReplaceSO(allSOs, clonedSOs, port);
for (int c = 0; c < port.connections.Count; c++)
{
port.connections[c] = ReplaceSO(allSOs, clonedSOs, port.connections[c]);
}
port.body = clonedNode;
portDecl.portField.SetValue(clonedNode, port);
}
for (int i = 0; i < clonedNode.dynamicConnectionPorts.Count; i++)
{ // Iterate over all dynamic connection ports
ConnectionPort port = clonedNode.dynamicConnectionPorts[i];
port = ReplaceSO(allSOs, clonedSOs, port);
for (int c = 0; c < port.connections.Count; c++)
{
port.connections[c] = ReplaceSO(allSOs, clonedSOs, port.connections[c]);
}
port.body = clonedNode;
clonedNode.dynamicConnectionPorts[i] = port;
}
}
if (editorStates) // Clone the editorStates
{
nodeCanvas.editorStates = CreateWorkingCopy(nodeCanvas.editorStates, nodeCanvas);
}
// Fix references in editorStates to Nodes in the canvas
foreach (NodeEditorState state in nodeCanvas.editorStates)
{
state.selectedNode = ReplaceSO(allSOs, clonedSOs, state.selectedNode);
}
return(nodeCanvas);
}
/// <summary>
/// Creates a node of the specified ID at pos on the specified canvas, optionally auto-connecting the specified output to a matching input
/// silent disables any events, init specifies whether OnCreate should be called
/// </summary>
public static Node Create(string nodeID, Vector2 pos, NodeCanvas hostCanvas,
ConnectionPort connectingPort = null, bool silent = false, bool init = true)
{
if (string.IsNullOrEmpty(nodeID) || hostCanvas == null)
{
throw new ArgumentException();
}
if (!NodeCanvasManager.CheckCanvasCompability(nodeID, hostCanvas.GetType()))
{
throw new UnityException("Cannot create Node with ID '" + nodeID +
"' as it is not compatible with the current canavs type (" +
hostCanvas.GetType().ToString() + ")!");
}
if (!hostCanvas.CanAddNode(nodeID))
{
throw new UnityException("Cannot create Node with ID '" + nodeID + "' on the current canvas of type (" +
hostCanvas.GetType().ToString() + ")!");
}
// Create node from data
NodeTypeData data = NodeTypes.getNodeData(nodeID);
Node node = (Node)CreateInstance(data.type);
if (node == null)
{
return(null);
}
// Init node state
node.name = node.Title;
node.autoSize = node.DefaultSize;
node.position = pos;
ConnectionPortManager.UpdateConnectionPorts(node);
if (init)
{
node.OnCreate();
}
if (connectingPort != null)
{
// Handle auto-connection and link the output to the first compatible input
foreach (ConnectionPort port in node.connectionPorts)
{
if (port.TryApplyConnection(connectingPort, silent))
{
break;
}
}
}
// Add node to host canvas
hostCanvas.nodes.Add(node);
if (!silent)
{
// Callbacks
hostCanvas.OnNodeChange(connectingPort != null ? connectingPort.body : node);
NodeEditorCallbacks.IssueOnAddNode(node);
hostCanvas.Validate();
NodeEditor.RepaintClients();
}
return(node);
}
public virtual void OnAddConnectionPort(ConnectionPort knob)
{
}
/// <summary>
/// Creates a copy of the specified node at pos on the specified canvas, optionally auto-connecting the specified output to a matching input
/// silent disables any events
/// </summary>
public static Node CreateCopy(Node toCopy, Vector2 pos, NodeCanvas hostCanvas, ConnectionPort connectingPort = null, bool silent = false)
{
if (toCopy == null || hostCanvas == null)
{
throw new ArgumentException();
}
if (!NodeCanvasManager.CheckCanvasCompability(toCopy.GetID, hostCanvas.GetType()))
{
throw new UnityException("Cannot create Node with ID '" + toCopy.GetID + "' as it is not compatible with the current canvas type (" + hostCanvas.GetType().ToString() + ")!");
}
if (!hostCanvas.CanAddNode(toCopy.GetID))
{
throw new UnityException("Cannot create Node with ID '" + toCopy.GetID + "' on the current canvas of type (" + hostCanvas.GetType().ToString() + ")!");
}
Node node = ScriptableObject.Instantiate(toCopy);
//Clone static connection ports
foreach (ConnectionPortDeclaration portDecl in ConnectionPortManager.GetPortDeclarationEnumerator(node, true))
{
ConnectionPort port = (ConnectionPort)portDecl.portField.GetValue(node);
port = portDecl.portInfo.CreateNew(node);
portDecl.portField.SetValue(node, port);
}
//Clone dynamic connection ports
for (int i = 0; i < node.dynamicConnectionPorts.Count; ++i)
{
node.dynamicConnectionPorts[i] = ScriptableObject.Instantiate(node.dynamicConnectionPorts[i]);
node.dynamicConnectionPorts[i].body = node;
node.dynamicConnectionPorts[i].ClearConnections();
}
ConnectionPortManager.UpdateRepresentativePortLists(node);
//Clone child SOs
System.Func <ScriptableObject, ScriptableObject> copySOs = (ScriptableObject so) => ScriptableObject.Instantiate(so);;
node.CopyScriptableObjects(copySOs);
if (node == null)
{
return(null);
}
// Init node state
node.name = node.Title;
node.autoSize = node.DefaultSize;
node.position = pos;
ConnectionPortManager.UpdateConnectionPorts(node);
if (connectingPort != null)
{ // Handle auto-connection and link the output to the first compatible input
for (int i = 0; i < node.connectionPorts.Count; i++)
{
if (node.connectionPorts[i].TryApplyConnection(connectingPort, silent))
{
break;
}
}
}
// Add node to host canvas
hostCanvas.nodes.Add(node);
if (!silent)
{ // Callbacks
hostCanvas.OnNodeChange(connectingPort != null ? connectingPort.body : node);
NodeEditorCallbacks.IssueOnAddNode(node);
hostCanvas.Validate();
NodeEditor.RepaintClients();
}
return(node);
}
/// <summary>
/// Creates a copy of the specified at pos on the current canvas, optionally auto-connecting the specified output to a matching input
/// </summary>
public static Node CreateCopy(Node toCopy, Vector2 pos, ConnectionPort connectingPort = null, bool silent = false)
{
return(CreateCopy(toCopy, pos, NodeEditor.curNodeCanvas, connectingPort, silent));
}
// Connection
public virtual void OnAddConnection(ConnectionPort port1, ConnectionPort port2)
{
}
/// <summary>
/// Creates a node of the specified ID at pos on the specified canvas, optionally auto-connecting the specified output to a matching input
/// silent disables any events, init specifies whether OnCreate should be called
/// </summary>
public static Node Create(string nodeID, Vector2 pos, NodeCanvas hostCanvas, ConnectionPort connectingPort = null, bool silent = false, bool init = true)
{
if (string.IsNullOrEmpty(nodeID) || hostCanvas == null)
{
throw new ArgumentException();
}
if (!NodeCanvasManager.CheckCanvasCompability(nodeID, hostCanvas.GetType()))
{
throw new UnityException("Cannot create Node with ID '" + nodeID + "' as it is not compatible with the current canavs type (" + hostCanvas.GetType().ToString() + ")!");
}
if (!hostCanvas.CanAddNode(nodeID))
{
throw new UnityException("Cannot create Node with ID '" + nodeID + "' on the current canvas of type (" + hostCanvas.GetType().ToString() + ")!");
}
// Create node from data
NodeTypeData data = NodeTypes.getNodeData(nodeID);
Node node = (Node)CreateInstance(data.type);
if (node == null)
{
return(null);
}
// Init node state
node.canvas = hostCanvas;
node.name = node.Title;
node.autoSize = node.DefaultSize;
node.position = pos;
ConnectionPortManager.UpdateConnectionPorts(node);
if (init)
{
node.OnCreate();
}
if (connectingPort != null)
{ // Handle auto-connection and link the output to the first compatible input
for (int i = 0; i < node.connectionPorts.Count; i++)
{
if (node.connectionPorts[i].TryApplyConnection(connectingPort, true))
{
break;
}
}
}
// Add node to host canvas
hostCanvas.nodes.Add(node);
if (!silent)
{ // Callbacks
hostCanvas.OnNodeChange(connectingPort != null ? connectingPort.body : node);
NodeEditorCallbacks.IssueOnAddNode(node);
hostCanvas.Validate();
NodeEditor.RepaintClients();
}
#if UNITY_EDITOR
if (!silent)
{
List <ConnectionPort> connectedPorts = new List <ConnectionPort>();
foreach (ConnectionPort port in node.connectionPorts)
{ // 'Encode' connected ports in one list (double level cannot be serialized)
foreach (ConnectionPort conn in port.connections)
{
connectedPorts.Add(conn);
}
connectedPorts.Add(null);
}
Node createdNode = node;
UndoPro.UndoProManager.RecordOperation(
() => NodeEditorUndoActions.ReinstateNode(createdNode, connectedPorts),
() => NodeEditorUndoActions.RemoveNode(createdNode),
"Create Node");
// Make sure the new node is in the memory dump
NodeEditorUndoActions.CompleteSOMemoryDump(hostCanvas);
}
#endif
return(node);
}
public virtual void OnRemoveConnection(ConnectionPort port1, ConnectionPort port2)
{
}