UnityMirror/xNode
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Code

Connections can now be dragged, not created.

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This commit is contained in:
Unknown 2017-09-20 00:47:29 +02:00
parent 36ecfde3fe
commit 2a6341728b
4 changed files with 58 additions and 36 deletions
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27
Scripts/Editor/NodeEditorAction.cs
View File

@ -20,14 +20,24 @@ public static class NodeEditorAction {
break;
case EventType.MouseDrag:
if (e.button == 0) {
if (window.activeNode != null) {
if (window.hoveredPort != null || window.tempConnection != null) {
if (window.tempConnection == null) {
if (window.HasSelectedNode) {
//If we are currently dragging a connection, check if we are hovering any matching port to connect to
if (window.IsDraggingConnection) {
if (window.IsHoveringPort && window.IsHoveringNode && window.hoveredPort.IsInput) {
window.draggedConnection.outputNodeId = window.graph.GetNodeId(window.hoveredNode);
window.draggedConnection.inputPortId = window.hoveredNode.GetInputPortId(window.hoveredPort);
} else {
window.draggedConnection.outputNodeId = -1;
window.draggedConnection.inputPortId = -1;
}
}
//If we just started dragging from a port, grab connection
else if (window.IsHoveringPort) {
if (window.hoveredPort.direction == NodePort.IO.Output) {
dragging = true;
int inputNodeId = window.graph.GetNodeId(window.activeNode);
int outputPortId = window.activeNode.GetOutputPortId(window.hoveredPort);
window.tempConnection = new NodeConnection(inputNodeId, outputPortId, -1,-1);
int inputNodeId = window.graph.GetNodeId(window.selectedNode);
int outputPortId = window.selectedNode.GetOutputPortId(window.hoveredPort);
window.draggedConnection = new NodeConnection(inputNodeId, outputPortId, -1, -1);
}
else {
Debug.Log("input");
@ -36,9 +46,8 @@ public static class NodeEditorAction {
window.tempConnection = new NodeConnection(-1,-1,outputNodeId,outputPortId);*/
}
}
}
else {
window.activeNode.position.position = window.WindowToGridPosition(e.mousePosition) + dragOffset;
window.selectedNode.position.position = window.WindowToGridPosition(e.mousePosition) + dragOffset;
window.Repaint();
}
}
@ -61,7 +70,7 @@ public static class NodeEditorAction {
window.Repaint();
break;
case EventType.MouseUp:
window.tempConnection = null;
window.draggedConnection.enabled = false;
if (dragging) return;
if (e.button == 1) {

30
Scripts/Editor/NodeEditorWindow.cs
View File

@ -7,13 +7,17 @@ using UNEC;
public class NodeEditorWindow : EditorWindow {
private Dictionary<NodePort, Vector2> portConnectionPoints = new Dictionary<NodePort, Vector2>();
public bool IsDraggingConnection { get { return draggedConnection.enabled; } }
public bool IsHoveringPort { get { return hoveredPort != null; } }
public bool IsHoveringNode { get { return hoveredNode != null; } }
public bool HasSelectedNode { get { return selectedNode != null; } }
public NodeGraph graph { get { return _graph != null ? _graph : _graph = new NodeGraph(); } }
public NodeGraph _graph;
public Node hoveredNode;
public Node activeNode { get; private set; }
/// <summary> Currently selected node </summary>
public Node selectedNode { get; private set; }
public NodePort hoveredPort;
public NodeConnection? tempConnection;
public NodeConnection draggedConnection;
public Vector2 panOffset { get { return _panOffset; } set { _panOffset = value; Repaint(); } }
private Vector2 _panOffset;
@ -34,20 +38,26 @@ public class NodeEditorWindow : EditorWindow {
NodeEditorGUI.DrawGrid(position, zoom, panOffset);
DrawNodes();
DrawTempConnection();
DrawDraggedConnection();
NodeEditorGUI.DrawToolbar(this);
GUI.matrix = m;
}
/// <summary> Draw a connection as we are dragging it </summary>
private void DrawTempConnection() {
if (tempConnection.HasValue) {
Node inputNode = graph.GetNode(tempConnection.Value.inputNodeId);
private void DrawDraggedConnection() {
if (IsDraggingConnection) {
Node inputNode = graph.GetNode(draggedConnection.inputNodeId);
Node outputNode = graph.GetNode(draggedConnection.outputNodeId);
if (inputNode != null) {
NodePort outputPort = inputNode.GetOutput(tempConnection.Value.outputPortId);
NodePort outputPort = inputNode.GetOutput(draggedConnection.outputPortId);
Vector2 startPoint = GridToWindowPosition( portConnectionPoints[outputPort]);
Vector2 endPoint = Event.current.mousePosition;
if (outputNode != null) {
NodePort inputPort = outputNode.GetInput(draggedConnection.inputPortId);
if (inputPort != null) endPoint = GridToWindowPosition(portConnectionPoints[inputPort]);
}
Vector2 startTangent = startPoint;
startTangent.x = Mathf.Lerp(startPoint.x,endPoint.x,0.7f);
Vector2 endTangent = endPoint;
@ -78,7 +88,7 @@ public class NodeEditorWindow : EditorWindow {
Rect windowRect = new Rect(nodePos, new Vector2(200, 200));
if (windowRect.Contains(e.mousePosition)) hoveredNode = node;
GUIStyle style = (node == activeNode) ? (GUIStyle)"flow node 0 on" : (GUIStyle)"flow node 0";
GUIStyle style = (node == selectedNode) ? (GUIStyle)"flow node 0 on" : (GUIStyle)"flow node 0";
GUILayout.BeginArea(windowRect, node.ToString(), style);
GUILayout.BeginHorizontal();
@ -150,7 +160,7 @@ public class NodeEditorWindow : EditorWindow {
}
public void SelectNode(Node node) {
activeNode = node;
selectedNode = node;
}
}

17
Scripts/NodeConnection.cs
View File

@ -5,18 +5,17 @@ using UnityEngine;
namespace UNEC {
/// <summary> Data travels from Input Node's Output port to Output Node's Input port </summary>
public struct NodeConnection {
public int inputNodeId { get { return _inputNodeId; } }
public int inputPortId { get { return _inputPortId; } }
public int outputNodeId { get { return _outputNodeId; } }
public int outputPortId { get { return _outputPortId; } }
[SerializeField] private int _inputNodeId, _inputPortId, _outputNodeId, _outputPortId;
public bool enabled;
/// <summary> Data travels from Input Node's Output port to Output Node's Input port </summary>
public int inputNodeId, inputPortId, outputNodeId, outputPortId;
/// <summary> Data travels from Input Node's Output port to Output Node's Input port </summary>
public NodeConnection(int inputNodeId, int outputPortId, int outputNodeId, int inputPortId) {
_inputNodeId = inputNodeId;
_outputPortId = outputPortId;
_outputNodeId = outputNodeId;
_inputPortId = inputPortId;
this.inputNodeId = inputNodeId;
this.outputPortId = outputPortId;
this.outputNodeId = outputNodeId;
this.inputPortId = inputPortId;
enabled = true;
}
}
}

4
Scripts/NodePort.cs
View File

@ -17,6 +17,10 @@ public class NodePort {
return IO.None;
}
}
public bool IsInput { get { return direction == IO.Input; } }
public bool IsOutput { get { return direction == IO.Output; } }
public Node node { get; private set; }
public string name { get { return _name; } set { _name = value; } }
[SerializeField]