A small correction.
This app simulates a train station with trains going to six different directions. Passengers enter the respective platforms, named A to F.
This app stores the passengers in small storage cells. If a larger storage cell is needed. the old one becomes available and can be used again. The same happens, if a train leaves and the passengers vanish.
This kind of "garbage collection" makes long-term action possible, without the overall storage need growing all the time.
The app is self-explanatory. This means that in any situation only those activities can be started which make sense at that moment.
Besides this, the app can be played offline (airplane mode). After being downloaded, no wi-fi or mobile connection is needed.
