public override void OnInspectorGUI()
{
base.OnInspectorGUI();
if (action.path == null)
{
if (GUILayout.Button("Create New Path"))
{
action.path = BezierPath.Create(action.root.context.transform);
UnityEditor.Selection.activeObject = action.path;
}
}
}
public BezierPoint(BezierPath path, Vector3 position)
{
this.path = path;
this.position = position;
}
void DrawPointSceneGUI(BezierPoint point, int index)
{
Handles.BeginGUI();
var e = Event.current;
Handles.Label(point.position + new Vector3(0, HandleUtility.GetHandleSize(point.position) * 0.4f, 0), index.ToString());
Handles.color = Color.green;
var pointGUISize = HandleUtility.GetHandleSize(point.position) * 0.1f;
if (e.type == EventType.MouseDown)
{
var screenPos = HandleUtility.WorldToGUIPoint(point.position);
var nextPoint = index < path.points.Count - 1? path[index + 1] : null;
var previousPoint = index > 0? path[index - 1] : null;
if (((Vector2)screenPos - e.mousePosition).magnitude < 13)
{
if (e.button == 0)
{
selectedPoint = point;
SceneView.RepaintAll();
}
if (e.button == 1)
{
path.SetDirty();
var menu = new GenericMenu();
if (nextPoint != null)
{
menu.AddItem(new GUIContent("Add Point After"), false, () => { path.AddPointAt(BezierPath.GetPoint(point, nextPoint, 0.5f), index + 1); });
}
if (previousPoint != null)
{
menu.AddItem(new GUIContent("Add Point Before"), false, () => { path.AddPointAt(BezierPath.GetPoint(previousPoint, point, 0.5f), index); });
}
menu.AddItem(new GUIContent("Tangent/Connected"), false, () => { point.handleStyle = BezierPoint.HandleStyle.Connected; });
menu.AddItem(new GUIContent("Tangent/Broken"), false, () => { point.handleStyle = BezierPoint.HandleStyle.Broken; });
if (path.points.Count > 2)
{
menu.AddSeparator("/");
menu.AddItem(new GUIContent("Delete"), false, () => { path.RemovePoint(point); });
}
menu.ShowAsContext();
e.Use();
}
}
}
var newPosition = point.position;
if (point == selectedPoint)
{
newPosition = Handles.PositionHandle(point.position, Quaternion.identity);
}
Handles.FreeMoveHandle(point.position, Quaternion.identity, pointGUISize, Vector3.zero, Handles.RectangleCap);
if (newPosition != point.position)
{
point.position = newPosition;
path.SetDirty();
}
if (point.handleStyle != BezierPoint.HandleStyle.None)
{
Handles.color = Color.cyan;
var newGlobal1 = Handles.FreeMoveHandle(point.globalHandle1, Quaternion.identity, HandleUtility.GetHandleSize(point.globalHandle1) * 0.075f, Vector3.zero, Handles.CircleCap);
if (point.globalHandle1 != newGlobal1)
{
point.globalHandle1 = newGlobal1;
path.SetDirty();
//if(point.handleStyle == BezierPoint.HandleStyle.Connected) point.globalHandle2 = -(newGlobal1 - point.position) + point.position;
}
var newGlobal2 = Handles.FreeMoveHandle(point.globalHandle2, Quaternion.identity, HandleUtility.GetHandleSize(point.globalHandle2) * 0.075f, Vector3.zero, Handles.CircleCap);
if (point.globalHandle2 != newGlobal2)
{
point.globalHandle2 = newGlobal2;
path.SetDirty();
//if(point.handleStyle == BezierPoint.HandleStyle.Connected) point.globalHandle1 = -(newGlobal2 - point.position) + point.position;
}
Handles.color = Color.yellow;
Handles.DrawLine(point.position, point.globalHandle1);
Handles.DrawLine(point.position, point.globalHandle2);
}
Handles.EndGUI();
}
