private void UpdateFocus(MassTestChamber master, int deltaTime)
{
int direction = master.SimulationInput.PollInteger(MassTestChamber.FocusMotorKey);
if (direction != 0)
{
FocusCart.Drive(direction > 0, deltaTime);
}
bool field = master.SimulationInput.PollBoolean(MassTestChamber.FieldGeneratorKey);
Central.ShowAs(Emitter.IsProvidingMass, field, IsDischarging);
master.SimulationOutput.SetValue(MassTestChamber.FocusFrontKey, FocusCart.FrontPositionReached);
master.SimulationOutput.SetValue(MassTestChamber.FocusBackKey, FocusCart.BackPositionReached);
}