// preview
protected void Preview(Vector3 position, BGCurve curve, ref float toLast, ref float toFirst)
{
var settings = overlay.Editor.Settings;
//show point
BGEditorUtility.SwapHandlesColor(settings.SphereColor, () => Handles.SphereCap(0, position, Quaternion.identity, BGEditorUtility.GetHandleSize(position, ScalePreviewPoint)));
//create a point
var newPoint = BGNewPointPositionManager.CreatePoint(position, curve, settings.ControlType, settings.Sections, out toLast, out toFirst, false);
//show controls
if (newPoint.ControlType != BGCurvePoint.ControlTypeEnum.Absent)
{
PreviewControls(settings, position, newPoint.ControlFirstWorld, newPoint.ControlSecondWorld);
}
if (curve.PointsCount == 0)
{
return;
}
BGEditorUtility.SwapHandlesColor(BGCurveSettingsForEditor.ColorForNewSectionPreview, () =>
{
// last To new
DrawSection(curve[curve.PointsCount - 1], newPoint, settings.Sections);
AdditionalPreview(newPoint);
// new To zero
if (curve.Closed)
{
DrawSection(newPoint, curve[0], settings.Sections);
}
});
}
//see base class for description
internal override bool Seize(Event currentEvent, ref Vector3 position, ref string message)
{
if (!Comply(currentEvent))
{
return(false);
}
Vector3 intersectionPosition;
Plane plane;
if (currentEvent.type == EventType.mouseDown && currentEvent.control && currentEvent.button == 0)
{
//Mouse down for some action
var curve = overlay.Editor.Curve;
var settings = overlay.Editor.Settings;
Cast(currentEvent, HandleUtility.GUIPointToWorldRay(currentEvent.mousePosition), out intersectionPosition, out message, out plane);
if (message != null)
{
BGCurveEditor.OverlayMessage.Display(message);
}
else
{
position = intersectionPosition;
BGCurveEditor.AddPoint(curve,
BGNewPointPositionManager.CreatePoint(intersectionPosition, curve, settings.ControlType, settings.Sections, true),
curve.PointsCount);
}
overlay.EventCanceller = new BGEditorUtility.EventCanceller();
return(true);
}
if (!(currentEvent.type == EventType.Repaint && currentEvent.control || currentEvent.type == EventType.MouseMove && currentEvent.control))
{
return(false);
}
var ray = HandleUtility.GUIPointToWorldRay(currentEvent.mousePosition);
Cast(currentEvent, ray, out intersectionPosition, out message, out plane);
position = intersectionPosition;
if (message != null)
{
return(true);
}
Animation(plane, ray, swayTransition);
//preview
float toLast = -1, toFirst = -1;
Preview(intersectionPosition, overlay.Editor.Curve, ref toLast, ref toFirst);
//distance
message = BGSceneViewOverlay.ToOk("MouseClick to add a point\r\n") +
//to last
(toLast < 0 ? "First point is ready to go!" : "Distance to last=" + toLast) +
//to first
(toFirst < 0 ? "" : ", to first=" + toFirst);
return(true);
}
//default implementation adds a point to the spline's end
protected virtual void AddPoint(BGCurve curve, Vector3 intersectionPosition, BGCurveSettings settings)
{
BGCurveEditor.AddPoint(curve,
BGNewPointPositionManager.CreatePoint(intersectionPosition, curve, settings.ControlType, settings.Sections, true),
curve.PointsCount);
}
protected virtual BGCurvePoint CreatePointForPreview(Vector3 position, BGCurve curve, out float toLast, out float toFirst, BGCurveSettings settings)
{
return(BGNewPointPositionManager.CreatePoint(position, curve, settings.ControlType, settings.Sections, out toLast, out toFirst, false));
}