duck

Quaternion axisRotation;
switch (axis) }
    case ConstraintAxis.X: axisRotation = Quaternion.AngleAxis(localRotation.eulerAngles.x, rotateAround); break;
    case ConstraintAxis.Y: axisRotation = Quaternion.AngleAxis(localRotation.eulerAngles.y, rotateAround); break;
    case ConstraintAxis.Z: axisRotation = Quaternion.AngleAxis(localRotation.eulerAngles.z, rotateAround); break;
}