public static void DrawExitStatus(BonsaiNode node)
{
// Draw the exit status in the top right corner.
float statusSize = BonsaiPreferences.Instance.statusIconSize;
Rect contentRect = node.ContentRect;
var rect = new Rect(contentRect.xMax - statusSize, contentRect.yMin, statusSize, statusSize);
var prefs = BonsaiPreferences.Instance;
var status = node.Behaviour.GetStatusEditor();
if (status == Core.BehaviourNode.StatusEditor.Success)
{
DrawTexture(rect, prefs.successSymbol, prefs.successColor);
}
else if (status == Core.BehaviourNode.StatusEditor.Failure)
{
DrawTexture(rect, prefs.failureSymbol, prefs.failureColor);
}
else if (status == Core.BehaviourNode.StatusEditor.Aborted)
{
DrawTexture(rect, prefs.failureSymbol, prefs.abortedColor);
}
else if (status == Core.BehaviourNode.StatusEditor.Interruption)
{
DrawTexture(rect, prefs.failureSymbol, prefs.interruptedColor);
}
}
public static void DrawNode(
CanvasTransform t,
BonsaiNode node,
Color statusColor)
{
// Convert the node rect from canvas to screen space.
Rect screenRect = node.RectPositon;
screenRect.position = t.CanvasToScreenSpace(screenRect.position);
// Remember the original color that way it is reset when the function exits.
Color originalColor = GUI.color;
DrawNodeBackground(screenRect, statusColor);
// The node contents are grouped together within the node body.
GUI.BeginGroup(screenRect);
// Make the body of node local to the group coordinate space.
Rect localRect = node.RectPositon;
localRect.position = Vector2.zero;
// Draw the contents inside the node body, automatically laid out.
GUILayout.BeginArea(localRect, GUIStyle.none);
DrawNodeTypeBackground(node);
DrawExitStatus(node);
DrawNodeContent(node);
GUILayout.EndArea();
GUI.EndGroup();
GUI.color = originalColor;
}
private Color NodeStatusColor(BonsaiNode node)
{
if (IsNodeEvaluating(node))
{
return(Preferences.evaluateColor);
}
else if (IsNodeRunning(node))
{
return(Preferences.runningColor);
}
else if (NodeSelection.IsNodeSelected(node))
{
return(Preferences.selectedColor);
}
else if (NodeSelection.IsReferenced(node))
{
return(Preferences.referenceColor);
}
else if (IsNodeAbortable(node))
{
return(Preferences.abortColor);
}
else if (Canvas.Root == node)
{
return(Preferences.rootSymbolColor);
}
return(Preferences.defaultNodeBackgroundColor);
}
// Creates and adds an editor node to the canvas.
private BonsaiNode AddEditorNode(bool hasOutput, Texture icon = null)
{
var node = new BonsaiNode(hasOutput, icon);
nodes.Add(node);
return(node);
}
/// <summary>
/// Formats the tree to look nicely.
/// </summary>
public static void PositionNodesNicely(BonsaiNode root, Vector2 anchor)
{
// Sort parent-child connections so formatter uses latest changes.
foreach (BonsaiNode node in TreeTraversal.PreOrder(root))
{
node.SortChildren();
}
var positioning = new FormatPositioning();
foreach (BonsaiNode node in TreeTraversal.PostOrder(root))
{
PositionHorizontal(node, positioning);
}
foreach (BonsaiNode node in TreeTraversal.PreOrder(root))
{
PositionVertical(node);
}
// Move the entire subtree to the anchor.
Vector2 offset = EditorSingleDrag.StartDrag(root, root.Center);
EditorSingleDrag.SetSubtreePosition(root, anchor, offset);
}
// Highlights nodes that can be aborted by the currently selected node.
private void highlightAsAbortable(BonsaiNode node)
{
// Root must exist.
if (!window.tree.Root)
{
return;
}
BonsaiNode selected = window.inputHandler.SelectedNode;
// A node must be selected.
if (selected == null)
{
return;
}
var aborter = selected.behaviour as ConditionalAbort;
// The selected node must be a conditional abort.
if (aborter)
{
// Highlight this node if it can be aborted by the selected aborter.
if (ConditionalAbort.IsAbortable(aborter, node.behaviour))
{
backgroundStyle.normal.background = _abortHighlightTex;
}
}
}
public void ToggleSelecion(BonsaiNode node)
{
if (IsNodeSelected(node))
{
selectedNodes.Remove(node);
}
else
{
selectedNodes.Add(node);
}
if (IsSingleSelection)
{
BonsaiNode selectedNode = SingleSelectedNode;
Selection.objects = null;
Selection.activeObject = selectedNode.Behaviour;
SingleSelected?.Invoke(this, selectedNode);
NotifyIfAbortSelected(selectedNode);
SelectReferencedNodes(selectedNode);
}
else if (IsMultiSelection)
{
Selection.objects = selectedNodes.Select(n => n.Behaviour).ToArray();
}
}
// Nodes that are being referenced are highlighted.
private void highlightAsReferenced(BonsaiNode node)
{
if (_referencedNodes.Contains(node.behaviour))
{
backgroundStyle.normal.background = _referenceHighlightTex;
}
}
private void CreateNodeFromType(object sender, Type type)
{
BonsaiNode node = Canvas.CreateNode(type);
NodeSelection.SetSingleSelection(node);
lastCreatedNodeToPosition = node;
}
private void drawAbortPriorityIcon(Rect localRect, BonsaiNode node)
{
var abortNode = node.behaviour as ConditionalAbort;
// Can only show icon for abort nodes.
if (abortNode && abortNode.abortType != AbortType.None)
{
localRect.position = _abortIconOffset;
localRect.size = _abortIconSize;
Texture2D tex = null;
switch (abortNode.abortType)
{
case AbortType.LowerPriority:
tex = _lowerPrioritySymbol;
break;
case AbortType.Self:
// Offset a bit so it is not too close to left edge.
localRect.x += 2f;
tex = _selfPrioritySymbol;
break;
case AbortType.Both:
tex = _bothPrioritySymbol;
break;
}
GUILayout.BeginArea(localRect, tex);
GUILayout.EndArea();
}
}
private void setTreeAsSelected()
{
EndReferenceLinking();
_window.editor.ClearReferencedNodes();
_selectedNode = null;
Selection.activeObject = _window.tree;
}
public void PollInput(Event e, CanvasTransform t, Rect inputRect)
{
if (lastCreatedNodeToPosition != null)
{
lastCreatedNodeToPosition.Center = BonsaiInput.MousePosition(t);
lastCreatedNodeToPosition = null;
}
if (e.type == EventType.MouseDrag)
{
if (MotionAction != null)
{
MotionAction(t);
OnCanvasChanged();
}
}
if (BonsaiInput.IsPanAction(e))
{
Pan(e.delta);
OnCanvasChanged();
}
if (BonsaiInput.IsZoomAction(e))
{
Zoom(e.delta.y);
OnCanvasChanged();
}
Input.HandleMouseEvents(e, t, Canvas.Nodes, inputRect);
}
private void StartSingleDrag(BonsaiInputEvent startEvent)
{
BonsaiNode node = startEvent.node;
Vector2 offset = EditorSingleDrag.StartDrag(node, startEvent.canvasMousePostion);
MotionAction = (CanvasTransform t) => EditorSingleDrag.Drag(node, BonsaiInput.MousePosition(t), offset);
}
private void highlightAsSelected(BonsaiNode node)
{
// Highlight if node is selected.
if (node.behaviour == Selection.activeObject || node.bAreaSelectionFlag)
{
backgroundStyle.normal.background = _selectedHighlightTex;
}
}
private void highlightAsRunning(BonsaiNode node)
{
// Set the color to show that the node is running.
if (node.behaviour.GetStatusEditor() == BehaviourNode.StatusEditor.Running)
{
backgroundStyle.normal.background = _runningBackgroundTex;
}
}
private BonsaiNode ReconstructEditorNode(BehaviourNode behaviour)
{
BonsaiNode node = CreateNode(behaviour);
node.Behaviour = behaviour;
node.Position = behaviour.bonsaiNodePosition;
return(node);
}
private void handleNewNodeToPositionUnderMouse()
{
if (_nodeToPositionUnderMouse != null)
{
_nodeToPositionUnderMouse.bodyRect.position = MousePosition();
_nodeToPositionUnderMouse = null;
}
}
public void SetSingleSelection(BonsaiNode newSingleSelected)
{
selectedNodes.Clear();
selectedNodes.Add(newSingleSelected);
Selection.objects = null;
Selection.activeObject = newSingleSelected.Behaviour;
SingleSelected?.Invoke(this, newSingleSelected);
SelectReferencedNodes(newSingleSelected);
}
private void NotifyIfAbortSelected(BonsaiNode node)
{
var aborter = node.Behaviour as ConditionalAbort;
if (aborter && aborter.abortType != AbortType.None)
{
AbortSelected?.Invoke(this, aborter);
}
}
private void resetState()
{
_bIsAreaSelecting = false;
_bIsDragging = false;
_bIsMakingConnection = false;
_draggingNode = null;
_outputKnobToConnect = null;
}
public void PushToEnd(BonsaiNode node)
{
bool bRemoved = nodes.Remove(node);
if (bRemoved)
{
nodes.Add(node);
}
}
public static BonsaiNode DuplicateSingle(BonsaiCanvas canvas, BonsaiNode original)
{
BonsaiNode duplicate = canvas.CreateNode(original.Behaviour.GetType());
// Duplicate nodes are placed offset from the original.
duplicate.Position = original.Position + Vector2.one * 40f;
return(duplicate);
}
private void endSingleDrag()
{
// After doing a drag, the children order might have changed, so to reflect
// what we see in the editor to the internal tree structure, we notify the
// node of a positional reordering.
_draggingNode.NotifyParentOfPostionalReordering();
_bIsDragging = false;
_draggingNode = null;
}
private void drawRootSymbol(Rect localRect, BonsaiNode node)
{
if (window.tree.Root == node.behaviour)
{
// Shift the symbol so it is not in the center.
localRect.x -= localRect.width / 2f - 20f;
drawTexture(localRect, _rootSymbol, _rootSymbolColor);
}
}
private static void GetCompositeParent(BonsaiNode aborter, out BonsaiNode compositeParent, out BonsaiNode directChild)
{
directChild = aborter;
compositeParent = aborter.Parent;
while (compositeParent != null && !compositeParent.Behaviour.IsComposite())
{
directChild = compositeParent;
compositeParent = compositeParent.Parent;
}
}
public static void DrawPorts(CanvasTransform t, BonsaiNode node)
{
// There is always an input port.
DrawPort(t, node.InputRect);
if (node.HasOutput)
{
DrawPort(t, node.OutputRect);
}
}
public void UpdateNodeGUI(BehaviourNode behaviour)
{
BonsaiNode node = Canvas.Nodes.FirstOrDefault(n => n.Behaviour == behaviour);
if (node != null)
{
node.UpdateGui();
node.Center = MathExtensions.SnapPosition(node.Center, SnapStep);
}
}
public void UpdateAbortableSelection(BonsaiNode node)
{
abortableSelected.Clear();
var aborter = node.Behaviour as Core.ConditionalAbort;
if (aborter)
{
abortableSelected = new HashSet <BonsaiNode>(Abortables(node, aborter.abortType));
}
}
public void SetRoot(BonsaiNode newRoot)
{
if (newRoot.Parent == null)
{
Root = newRoot;
}
else
{
Debug.LogWarning("Root cannot be a child.");
}
}
private void DrawNodesInEditMode(CanvasTransform t)
{
var nodes = Canvas.Nodes;
for (int i = 0; i < nodes.Count; i++)
{
BonsaiNode node = nodes[i];
Drawer.DrawNode(t, node, NodeStatusColor(node));
Drawer.DrawPorts(t, node);
}
}