+ Layout &layout = train.get_layout();
+ if(!layout.get_driver().is_halted() && !layout.get_clock().is_stopped())
+ {
+ if(delay)
+ {
+ delay -= dt;
+ if(delay<Time::zero)
+ {
+ duration = max(duration+delay, Time::zero);
+ delay = Time::zero;
+ }
+ }
+ else if(duration)
+ duration = max(duration-dt, Time::zero);
+ }
+