private void DrawNodes()
{
Event e = Event.current;
if (e.type == EventType.Layout)
{
selectionCache = new List <UnityEngine.Object>(Selection.objects);
}
//Active node is hashed before and after node GUI to detect changes
int nodeHash = 0;
System.Reflection.MethodInfo onValidate = null;
if (Selection.activeObject != null && Selection.activeObject is AnimationBaker.StateMachine.XNode.Node)
{
onValidate = Selection.activeObject.GetType().GetMethod("OnValidate");
if (onValidate != null)
{
nodeHash = Selection.activeObject.GetHashCode();
}
}
BeginZoomed(position, zoom);
Vector2 mousePos = Event.current.mousePosition;
if (e.type != EventType.Layout)
{
hoveredNode = null;
hoveredPort = null;
}
List <UnityEngine.Object> preSelection = preBoxSelection != null ? new List <UnityEngine.Object>(preBoxSelection) : new List <UnityEngine.Object>();
// Selection box stuff
Vector2 boxStartPos = GridToWindowPositionNoClipped(dragBoxStart);
Vector2 boxSize = mousePos - boxStartPos;
if (boxSize.x < 0)
{
boxStartPos.x += boxSize.x; boxSize.x = Mathf.Abs(boxSize.x);
}
if (boxSize.y < 0)
{
boxStartPos.y += boxSize.y; boxSize.y = Mathf.Abs(boxSize.y);
}
Rect selectionBox = new Rect(boxStartPos, boxSize);
//Save guiColor so we can revert it
Color guiColor = GUI.color;
if (e.type == EventType.Layout)
{
culledNodes = new List <AnimationBaker.StateMachine.XNode.Node>();
}
for (int n = 0; n < graph.nodes.Count; n++)
{
// Skip null nodes. The user could be in the process of renaming scripts, so removing them at this point is not advisable.
if (graph.nodes[n] == null)
{
continue;
}
if (n >= graph.nodes.Count)
{
return;
}
AnimationBaker.StateMachine.XNode.Node node = graph.nodes[n];
NodeEditor nodeEditor = NodeEditor.GetEditor(node);
// Culling
if (e.type == EventType.Layout)
{
// Cull unselected nodes outside view
if (!Selection.Contains(node) && ShouldBeCulled(nodeEditor))
{
culledNodes.Add(node);
continue;
}
}
else if (culledNodes.Contains(node))
{
continue;
}
if (e.type == EventType.Repaint)
{
_portConnectionPoints = _portConnectionPoints.Where(x => x.Key.node != node).ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
}
NodeEditor.portPositions = new Dictionary <AnimationBaker.StateMachine.XNode.NodePort, Vector2>();
//Get node position
Vector2 nodePos = GridToWindowPositionNoClipped(node.position);
GUILayout.BeginArea(new Rect(nodePos, new Vector2(nodeEditor.GetWidth(), 4000)));
bool selected = selectionCache.Contains(graph.nodes[n]);
if (selected)
{
GUIStyle style = new GUIStyle(NodeEditorResources.styles.nodeBody);
GUIStyle highlightStyle = new GUIStyle(NodeEditorResources.styles.nodeHighlight);
highlightStyle.padding = style.padding;
style.padding = new RectOffset();
GUI.color = nodeEditor.GetTint();
GUILayout.BeginVertical(new GUIStyle(style));
GUI.color = NodeEditorPreferences.GetSettings().highlightColor;
GUILayout.BeginVertical(new GUIStyle(highlightStyle));
}
else
{
GUIStyle style = NodeEditorResources.styles.nodeBody;
GUI.color = nodeEditor.GetTint();
GUILayout.BeginVertical(new GUIStyle(style));
}
GUI.color = guiColor;
EditorGUI.BeginChangeCheck();
//Draw node contents
nodeEditor.OnNodeGUI();
//If user changed a value, notify other scripts through onUpdateNode
if (EditorGUI.EndChangeCheck())
{
if (NodeEditor.onUpdateNode != null)
{
NodeEditor.onUpdateNode(node);
}
// EditorUtility.SetDirty(node);
node.IsDirty = true;
nodeEditor.serializedObject.ApplyModifiedProperties();
}
GUILayout.EndVertical();
//Cache data about the node for next frame
if (e.type == EventType.Repaint)
{
Vector2 size = GUILayoutUtility.GetLastRect().size;
if (nodeSizes.ContainsKey(node))
{
nodeSizes[node] = size;
}
else
{
nodeSizes.Add(node, size);
}
foreach (var kvp in NodeEditor.portPositions)
{
Vector2 portHandlePos = kvp.Value;
portHandlePos += node.position;
Rect rect = new Rect(portHandlePos.x - 8, portHandlePos.y - 8, 16, 16);
if (portConnectionPoints.ContainsKey(kvp.Key))
{
portConnectionPoints[kvp.Key] = rect;
}
else
{
portConnectionPoints.Add(kvp.Key, rect);
}
}
}
if (selected)
{
GUILayout.EndVertical();
}
if (e.type != EventType.Layout)
{
//Check if we are hovering this node
Vector2 nodeSize = GUILayoutUtility.GetLastRect().size;
Rect windowRect = new Rect(nodePos, nodeSize);
if (windowRect.Contains(mousePos))
{
hoveredNode = node;
}
//If dragging a selection box, add nodes inside to selection
if (currentActivity == NodeActivity.DragGrid)
{
if (windowRect.Overlaps(selectionBox))
{
preSelection.Add(node);
}
}
//Check if we are hovering any of this nodes ports
//Check input ports
foreach (AnimationBaker.StateMachine.XNode.NodePort input in node.Inputs)
{
//Check if port rect is available
if (!portConnectionPoints.ContainsKey(input))
{
continue;
}
Rect r = GridToWindowRectNoClipped(portConnectionPoints[input]);
if (r.Contains(mousePos))
{
hoveredPort = input;
}
}
//Check all output ports
foreach (AnimationBaker.StateMachine.XNode.NodePort output in node.Outputs)
{
//Check if port rect is available
if (!portConnectionPoints.ContainsKey(output))
{
continue;
}
Rect r = GridToWindowRectNoClipped(portConnectionPoints[output]);
if (r.Contains(mousePos))
{
hoveredPort = output;
}
}
}
GUILayout.EndArea();
}
if (e.type != EventType.Layout && currentActivity == NodeActivity.DragGrid)
{
Selection.objects = preSelection.ToArray();
}
EndZoomed(position, zoom);
//If a change in hash is detected in the selected node, call OnValidate method.
//This is done through reflection because OnValidate is only relevant in editor,
//and thus, the code should not be included in build.
if (nodeHash != 0)
{
if (onValidate != null && nodeHash != Selection.activeObject.GetHashCode())
{
onValidate.Invoke(Selection.activeObject, null);
}
}
}
public void Controls()
{
wantsMouseMove = true;
Event e = Event.current;
switch (e.type)
{
case EventType.MouseMove:
break;
case EventType.ScrollWheel:
if (e.delta.y > 0)
{
zoom += 0.1f * zoom;
}
else
{
zoom -= 0.1f * zoom;
}
break;
case EventType.MouseDrag:
if (e.button == 0)
{
if (IsDraggingPort)
{
if (IsHoveringPort && hoveredPort.IsInput)
{
if (!draggedOutput.IsConnectedToPort(hoveredPort))
{
draggedOutputTarget = hoveredPort;
}
}
else
{
draggedOutputTarget = null;
}
Repaint();
}
else if (currentActivity == NodeActivity.HoldNode)
{
RecalculateDragOffsets(e);
currentActivity = NodeActivity.DragNode;
Repaint();
}
if (currentActivity == NodeActivity.DragNode)
{
// Holding ctrl inverts grid snap
bool gridSnap = NodeEditorPreferences.GetSettings().gridSnap;
if (e.control)
{
gridSnap = !gridSnap;
}
Vector2 mousePos = WindowToGridPosition(e.mousePosition);
// Move selected nodes with offset
for (int i = 0; i < Selection.objects.Length; i++)
{
if (Selection.objects[i] is AnimationBaker.StateMachine.XNode.Node)
{
AnimationBaker.StateMachine.XNode.Node node = Selection.objects[i] as AnimationBaker.StateMachine.XNode.Node;
node.position = mousePos + dragOffset[i];
if (gridSnap)
{
node.position.x = (Mathf.Round((node.position.x + 8) / 16) * 16) - 8;
node.position.y = (Mathf.Round((node.position.y + 8) / 16) * 16) - 8;
}
}
}
// Move selected reroutes with offset
for (int i = 0; i < selectedReroutes.Count; i++)
{
Vector2 pos = mousePos + dragOffset[Selection.objects.Length + i];
pos.x -= 8;
pos.y -= 8;
if (gridSnap)
{
pos.x = (Mathf.Round((pos.x + 8) / 16) * 16);
pos.y = (Mathf.Round((pos.y + 8) / 16) * 16);
}
selectedReroutes[i].SetPoint(pos);
}
Repaint();
}
else if (currentActivity == NodeActivity.HoldGrid)
{
currentActivity = NodeActivity.DragGrid;
preBoxSelection = Selection.objects;
preBoxSelectionReroute = selectedReroutes.ToArray();
dragBoxStart = WindowToGridPosition(e.mousePosition);
Repaint();
}
else if (currentActivity == NodeActivity.DragGrid)
{
Vector2 boxStartPos = GridToWindowPosition(dragBoxStart);
Vector2 boxSize = e.mousePosition - boxStartPos;
if (boxSize.x < 0)
{
boxStartPos.x += boxSize.x; boxSize.x = Mathf.Abs(boxSize.x);
}
if (boxSize.y < 0)
{
boxStartPos.y += boxSize.y; boxSize.y = Mathf.Abs(boxSize.y);
}
selectionBox = new Rect(boxStartPos, boxSize);
Repaint();
}
}
else if (e.button == 1 || e.button == 2)
{
Vector2 tempOffset = panOffset;
tempOffset += e.delta * zoom;
// Round value to increase crispyness of UI text
tempOffset.x = Mathf.Round(tempOffset.x);
tempOffset.y = Mathf.Round(tempOffset.y);
panOffset = tempOffset;
isPanning = true;
graph.dragPosition = panOffset;
}
break;
case EventType.MouseDown:
Repaint();
if (e.button == 0)
{
draggedOutputReroutes.Clear();
if (IsHoveringPort)
{
if (hoveredPort.IsOutput)
{
draggedOutput = hoveredPort;
}
else
{
hoveredPort.VerifyConnections();
if (hoveredPort.IsConnected)
{
AnimationBaker.StateMachine.XNode.Node node = hoveredPort.node;
AnimationBaker.StateMachine.XNode.NodePort output = hoveredPort.Connection;
int outputConnectionIndex = output.GetConnectionPortIndex(hoveredPort);
draggedOutputReroutes = output.GetReroutePoints(outputConnectionIndex);
hoveredPort.DisconnectPort(output);
draggedOutput = output;
draggedOutputTarget = hoveredPort;
if (NodeEditor.onUpdateNode != null)
{
NodeEditor.onUpdateNode(node);
}
}
}
}
else if (IsHoveringNode && IsHoveringTitle(hoveredNode))
{
// If mousedown on node header, select or deselect
if (!Selection.Contains(hoveredNode))
{
SelectNode(hoveredNode, e.control || e.shift);
if (!e.control && !e.shift)
{
selectedReroutes.Clear();
}
}
else if (e.control || e.shift)
{
DeselectNode(hoveredNode);
}
e.Use();
currentActivity = NodeActivity.HoldNode;
}
else if (IsHoveringReroute)
{
// If reroute isn't selected
if (!selectedReroutes.Contains(hoveredReroute))
{
// Add it
if (e.control || e.shift)
{
selectedReroutes.Add(hoveredReroute);
}
// Select it
else
{
selectedReroutes = new List <RerouteReference>()
{
hoveredReroute
};
Selection.activeObject = null;
}
}
// Deselect
else if (e.control || e.shift)
{
selectedReroutes.Remove(hoveredReroute);
}
e.Use();
currentActivity = NodeActivity.HoldNode;
}
// If mousedown on grid background, deselect all
else if (!IsHoveringNode)
{
currentActivity = NodeActivity.HoldGrid;
if (!e.control && !e.shift)
{
selectedReroutes.Clear();
Selection.activeObject = null;
if (Selection.activeObject != graph)
{
Selection.activeObject = graph;
}
}
}
}
break;
case EventType.MouseUp:
if (e.button == 0)
{
//Port drag release
if (IsDraggingPort)
{
//If connection is valid, save it
if (draggedOutputTarget != null)
{
AnimationBaker.StateMachine.XNode.Node node = draggedOutputTarget.node;
if (graph.nodes.Count != 0)
{
draggedOutput.Connect(draggedOutputTarget);
}
// ConnectionIndex can be -1 if the connection is removed instantly after creation
int connectionIndex = draggedOutput.GetConnectionPortIndex(draggedOutputTarget);
if (connectionIndex != -1)
{
draggedOutput.GetReroutePoints(connectionIndex).AddRange(draggedOutputReroutes);
if (NodeEditor.onUpdateNode != null)
{
NodeEditor.onUpdateNode(node);
}
// EditorUtility.SetDirty(graph);
graph.IsDirty = true;
}
}
//Release dragged connection
draggedOutput = null;
draggedOutputTarget = null;
// EditorUtility.SetDirty(graph);
graph.IsDirty = true;
if (NodeEditorPreferences.GetSettings().autoSave)
{
AssetDatabase.SaveAssets();
}
}
else if (currentActivity == NodeActivity.DragNode)
{
IEnumerable <AnimationBaker.StateMachine.XNode.Node> nodes = Selection.objects.Where(x => x is AnimationBaker.StateMachine.XNode.Node).Select(x => x as AnimationBaker.StateMachine.XNode.Node);
foreach (AnimationBaker.StateMachine.XNode.Node node in nodes)
{
node.IsDirty = true;
}
if (NodeEditorPreferences.GetSettings().autoSave)
{
AssetDatabase.SaveAssets();
}
}
else if (!IsHoveringNode)
{
// If click outside node, release field focus
if (!isPanning)
{
EditorGUI.FocusTextInControl(null);
}
if (NodeEditorPreferences.GetSettings().autoSave)
{
AssetDatabase.SaveAssets();
}
}
// If click node header, select it.
if (currentActivity == NodeActivity.HoldNode && !(e.control || e.shift))
{
selectedReroutes.Clear();
SelectNode(hoveredNode, false);
}
// If click reroute, select it.
if (IsHoveringReroute && !(e.control || e.shift))
{
selectedReroutes = new List <RerouteReference>()
{
hoveredReroute
};
Selection.activeObject = null;
}
Repaint();
currentActivity = NodeActivity.Idle;
}
else if (e.button == 1 || e.button == 2)
{
if (!isPanning)
{
if (IsDraggingPort)
{
draggedOutputReroutes.Add(WindowToGridPosition(e.mousePosition));
}
else if (currentActivity == NodeActivity.DragNode && Selection.activeObject == null && selectedReroutes.Count == 1)
{
selectedReroutes[0].InsertPoint(selectedReroutes[0].GetPoint());
selectedReroutes[0] = new RerouteReference(selectedReroutes[0].port, selectedReroutes[0].connectionIndex, selectedReroutes[0].pointIndex + 1);
}
// else if (IsHoveringReroute)
// {
// ShowRerouteContextMenu(hoveredReroute);
// }
// else if (IsHoveringPort)
// {
// ShowPortContextMenu(hoveredPort);
// }
// else if (IsHoveringNode && IsHoveringTitle(hoveredNode))
// {
// if (!Selection.Contains(hoveredNode)) SelectNode(hoveredNode, false);
// ShowNodeContextMenu();
// }
// else if (!IsHoveringNode)
// {
// ShowGraphContextMenu();
// }
}
isPanning = false;
}
break;
case EventType.KeyDown:
if (EditorGUIUtility.editingTextField)
{
break;
}
else if (e.keyCode == KeyCode.F)
{
Home();
}
if (SystemInfo.operatingSystemFamily == OperatingSystemFamily.MacOSX)
{
if (e.keyCode == KeyCode.Return)
{
RenameSelectedNode();
}
}
else
{
if (e.keyCode == KeyCode.F2)
{
RenameSelectedNode();
}
}
break;
case EventType.ValidateCommand:
if (e.commandName == "SoftDelete")
{
RemoveSelectedNodes();
}
else if (e.commandName == "Duplicate")
{
DublicateSelectedNodes();
}
Repaint();
break;
case EventType.Ignore:
// If release mouse outside window
if (e.rawType == EventType.MouseUp && currentActivity == NodeActivity.DragGrid)
{
Repaint();
currentActivity = NodeActivity.Idle;
}
break;
}
}
