A simple ball clock simulation written using Monocle. Exercise instructions.
- Purely functional : no mutable state, side effects are handled through algebraic effects. State updates are handled through lenses.
- Segregation of responsibilities : the application follows hexagonal architecture principles. The domain objects are separated from the core business logic, itself separated from the user interface. This allows to expose the application through a variety of interfaces, not just command-line, with no changes from the core logic.
- Tested
- Get rid of the
reversemethod and write a recursive function that moves balls from one track to another one-by-one to comply with the constraints of the exercise.
sbt run <number of balls> [<number of minutes>]
The number of balls must be between 21 and 127 (inclusive). Using the program with wrong arguments will yield a help message.