public GraphEvent(GEType type, GEContext context, Node node, IOOutlet outlet)
{
Type = type;
Context = context;
Node = node;
Outlet = outlet;
}
public IOConnection(Operator a, IOOutlet o, Operator b, IOOutlet i)
{
From = a;
Output = o;
To = b;
Input = i;
}
public GraphEvent(GEType type, GEContext context, Node node, IOOutlet outlet)
{
Type = type;
Context = context;
Node = node;
Outlet = outlet;
PositionData = Vector2.zero;
}
public static void DrawConnections(this Template template)
{
if (_FloatingTextStyle == null)
{
_FloatingTextStyle = new GUIStyle();
_FloatingTextStyle.alignment = TextAnchor.UpperRight;
_FloatingTextStyle.normal.textColor = Color.white;
_FloatingTextStyle.fontSize = 16;
}
// Connections
foreach (IOConnection conn in template.Connections)
{
Node a = GraphEditor.GetNode(conn.From.GUID);
Node b = GraphEditor.GetNode(conn.To.GUID);
DrawBezier(a.OutputOutlet(conn.Output), b.InputOutlet(conn.Input));
}
// Open connections
if (GraphEditor.CurrentEvent.Type == GEType.Drag)
{
Node node = GraphEditor.CurrentEvent.Node;
IOOutlet outlet = GraphEditor.CurrentEvent.Outlet;
Vector2 mousePos = Event.current.mousePosition;
bool validConnection = false;
// Dragging from Input
if (GraphEditor.CurrentEvent.Context == GEContext.Input)
{
Vector2 inPoint = node.InputOutlet(outlet);
DrawBezier(mousePos, inPoint);
validConnection = true;
}
// Dragging from Output
if (GraphEditor.CurrentEvent.Context == GEContext.Output)
{
Vector2 outPoint = node.OutputOutlet(outlet);
DrawBezier(outPoint, mousePos);
validConnection = true;
}
if (validConnection)
{
var point = mousePos + new Vector2(0f, 20f);
string label = System.String.Format("{0}\n{1}", outlet.Name, outlet.DataType.TypeAlias(), _FloatingTextStyle);
Handles.Label(point, label);
}
}
}
public Vector2 OutputOutlet(IOOutlet target)
{
for (int i = 0; i < Operator.Outputs.Length; i++)
{
if (Operator.Outputs[i].Name == target.Name)
{
float height = TitleHeight * _cachedScale + TitleSeparator;
height += (i * IOHeight) * _cachedScale;
height += (IOHeight * _cachedScale) / 2;
return(new Vector2(
NodeRect.x + NodeRect.width,
NodeRect.y + height
));
}
}
return(new Vector2(NodeRect.x, NodeRect.y));
}
public bool EventsNeedRepaint(float scale, GraphEditor graphEditor)
{
bool needsRepaint = false, showType = false;
int inputHover = -1, outputHover = -1;
var scaledIOHeight = IOHeight * scale;
if (scale != _cachedScale)
{
RecalculateBounds(scale);
}
Event ev = Event.current;
bool mouseInNode = NodeRect.Contains(ev.mousePosition);
bool mouseInInputs = InputsRect.Contains(ev.mousePosition);
bool mouseInOutputs = OutputsRect.Contains(ev.mousePosition);
// MouseOver node
if (mouseInNode || mouseInInputs || mouseInOutputs)
{
showType = true;
}
// MouseOver inputs
int inputIndex = Mathf.FloorToInt((ev.mousePosition.y - InputsRect.y) / scaledIOHeight);
if (mouseInInputs)
{
inputHover = inputIndex;
}
// MouseOver outputs
int outputIndex = Mathf.FloorToInt((ev.mousePosition.y - OutputsRect.y) / scaledIOHeight);
if (mouseInOutputs)
{
outputHover = outputIndex;
}
// Left mouse button actions
if (ev.button == 0)
{
// MouseDown outlets
if (ev.type == EventType.MouseDown)
{
// Input
if (mouseInInputs && inputIndex < Operator.Inputs.Length)
{
GraphEditor.CurrentEvent = new GraphEvent(GEType.Unresolved, GEContext.Input, this, Operator.Inputs[inputIndex]);
}
// Output
if (mouseInOutputs && outputIndex < Operator.Outputs.Length)
{
GraphEditor.CurrentEvent = new GraphEvent(GEType.Unresolved, GEContext.Output, this, Operator.Outputs[outputIndex]);
}
}
// MouseUp outlets
if (ev.type == EventType.MouseUp)
{
// Releasing Output on Input
if (mouseInInputs && GraphEditor.CurrentEvent.Type == GEType.Drag && GraphEditor.CurrentEvent.Context == GEContext.Output)
{
if (IOOutlet.CanConnect(GraphEditor.CurrentEvent.Outlet, Operator.Inputs[inputIndex]))
{
GraphEditor.Template.Connect(
GraphEditor.CurrentEvent.Node.Operator, GraphEditor.CurrentEvent.Outlet,
Operator, Operator.Inputs[inputIndex]
);
}
GraphEditor.CurrentEvent.Empty();
needsRepaint = true;
}
// Releasing Input on Output
if (mouseInOutputs && GraphEditor.CurrentEvent.Type == GEType.Drag && GraphEditor.CurrentEvent.Context == GEContext.Input)
{
if (IOOutlet.CanConnect(Operator.Outputs[inputIndex], GraphEditor.CurrentEvent.Outlet))
{
GraphEditor.Template.Connect(
Operator, Operator.Outputs[inputIndex],
GraphEditor.CurrentEvent.Node.Operator, GraphEditor.CurrentEvent.Outlet
);
}
GraphEditor.CurrentEvent.Empty();
needsRepaint = true;
}
}
// Mouse cursor over node
if (NodeRect.Contains(ev.mousePosition))
{
// Mouse Down
if (ev.type == EventType.MouseDown)
{
GraphEditor.CurrentEvent = new GraphEvent(GEType.Unresolved, GEContext.Node, this, IOOutlet.None, (ev.mousePosition / scale) - Operator.EditorPosition);
}
// Mouse Up
if (ev.type == EventType.MouseUp && GraphEditor.CurrentEvent.Type == GEType.Unresolved)
{
if (!GraphEditor.Selection.Contains(this))
{
if (Event.current.modifiers == EventModifiers.Shift)
{
GraphEditor.Selection.Add(this);
}
else
{
GraphEditor.Selection.Clear();
GraphEditor.Selection.Add(this);
}
}
needsRepaint = true;
}
else if (ev.type == EventType.MouseUp && GraphEditor.CurrentEvent.Node == this && GraphEditor.CurrentEvent.Type == GEType.Drag)
{
GraphEditor.Template.Serialize();
}
}
// MouseDrag
if (ev.type == EventType.MouseDrag)
{
// Drag node
if (GraphEditor.CurrentEvent.IsNodeDrag(this))
{
Vector2 newPosition = (ev.mousePosition / scale) - GraphEditor.CurrentEvent.PositionData;
Vector2 snapOffset = new Vector2(newPosition.x % GridRenderer.StepSize, newPosition.y % GridRenderer.StepSize);
Operator.EditorPosition = newPosition - snapOffset;
RecalculateBounds(scale);
GraphEditor.CurrentEvent.Type = GEType.Drag;
needsRepaint = true;
}
// Drag input
else if (GraphEditor.CurrentEvent.CanDragOutlet(this, GEContext.Input))
{
var connections = GraphEditor.Template.ConnectionsTo(Operator, GraphEditor.CurrentEvent.Outlet);
if (connections.Length > 0)
{
var last = connections[connections.Length - 1];
var fromNode = GraphEditor.GetNode(last.From.GUID);
GraphEditor.CurrentEvent = new GraphEvent(GEType.Drag, GEContext.Output, fromNode, last.Output);
GraphEditor.Template.Disconnect(last);
needsRepaint = true;
}
}
// Drag output
else if (GraphEditor.CurrentEvent.CanDragOutlet(this, GEContext.Output))
{
GraphEditor.CurrentEvent = new GraphEvent(GEType.Drag, GEContext.Output, this, GraphEditor.CurrentEvent.Outlet);
needsRepaint = true;
}
}
}
if (showType != ShowType || inputHover != InputHover || outputHover != OutputHover)
{
ShowType = showType;
InputHover = inputHover;
OutputHover = outputHover;
needsRepaint = true;
}
return(needsRepaint);
}
public Vector2 OutputOutlet(IOOutlet target)
{
for (int i = 0; i < Operator.Outputs.Length; i++) {
if (Operator.Outputs[i].Name == target.Name) {
float height = TitleHeight * _cachedScale + TitleSeparator;
height += (i * IOHeight) * _cachedScale;
height += (IOHeight * _cachedScale) / 2;
return new Vector2(
NodeRect.x + NodeRect.width,
NodeRect.y + height
);
}
}
return new Vector2(NodeRect.x, NodeRect.y);
}
public static string GetNiceName(this IOOutlet outlet)
{
return(ObjectNames.NicifyVariableName(outlet.Member.Name));
}