private void DrawSceneControlPointsHandle(BezierPoint bezierPoint, Vector2 mousePosition, float handleSize)
{
if (bezierPoint.pointType != BezierPointType.None)
{
Vector3 handle1 = Handles.FreeMoveHandle(bezierPoint.GetHandle1Position(), Quaternion.identity, handleSize, Vector3.zero, Handles.SphereCap);
Vector3 handle2 = Handles.FreeMoveHandle(bezierPoint.GetHandle2Position(), Quaternion.identity, handleSize, Vector3.zero, Handles.SphereCap);
Handles.DrawLine(bezierPoint.GetPosition(), handle1);
Handles.DrawLine(bezierPoint.GetPosition(), handle2);
int handleToAdjust = 0;
if (bezierPoint.GetHandle1Position() != handle1)
{
if (Event.current.control)
{
handle1.x = Mathf.Round(mousePosition.x / bezierCurve.snapSize) * bezierCurve.snapSize;
handle1.y = Mathf.Round(mousePosition.y / bezierCurve.snapSize) * bezierCurve.snapSize;
}
Undo.RecordObject(target, "Move Handle Point 1");
bezierPoint.SetHandle1Position(handle1);
if (bezierPoint.pointType == BezierPointType.Connected)
{
handleToAdjust = 2;
}
}
if (bezierPoint.GetHandle2Position() != handle2)
{
if (Event.current.control)
{
handle2.x = Mathf.Round(mousePosition.x / bezierCurve.snapSize) * bezierCurve.snapSize;
handle2.y = Mathf.Round(mousePosition.y / bezierCurve.snapSize) * bezierCurve.snapSize;
}
Undo.RecordObject(target, "Move Handle Point 2");
bezierPoint.SetHandle2Position(handle2);
if (bezierPoint.pointType == BezierPointType.Connected)
{
handleToAdjust = 1;
}
}
if (bezierPoint.pointType == BezierPointType.Connected)
{
if (handleToAdjust == 1)
{
bezierPoint.SetHandle1Position(bezierPoint.GetPosition() + (handle2 - bezierPoint.GetPosition()) * -1.0f);
}
if (handleToAdjust == 2)
{
bezierPoint.SetHandle2Position(bezierPoint.GetPosition() + (handle1 - bezierPoint.GetPosition()) * -1.0f);
}
}
if (bezierPoint.pointType == BezierPointType.Connected)
{
Color c = new Color(0, 0, 0, 0);
if (nearBezierPoint == bezierPoint)
{
c = Color.yellow;
}
Handles.color = c;
Quaternion rotation = Handles.Disc(bezierPoint.GetHandlesRotation(), bezierPoint.GetPosition(), Vector3.forward, handleSize * 4.0f, true, 15);
Handles.color = Color.white;
if (bezierPoint.GetHandlesRotation() != rotation)
{
Undo.RecordObject(target, "Rotate handle");
bezierPoint.SetHandlesRotation(rotation);
}
}
}
}
