improvements.cs

[...]
        public IEnumerable<IBinding> bindings {
            get {
                yield return BindingBuilder.Bind<CharacterCommandHandler>()
                    .ToFactory<ICommandDispatcher, IEventBus, IAggregateModel<Character>, CharacterCommandHandler>(CreateCommandHandler)
                    .Build();
                yield return BindingBuilder.Bind<IAggregateModel<Character>>()
                    .ToFactory(CreateCharacterModel)
                    .Build();
            }
        }

        private CharacterCommandHandler CreateCommandHandler(ICommandDispatcher dispatcher, IEventBus eventBus, IAggregateModel<Character> model) {
            CharacterCommandHandler handler = new CharacterCommandHandler(eventBus, model);

            dispatcher.Subscribe(CommandHandler.Create<CreateCharacterCommand>(handler.On));
            dispatcher.Subscribe(CommandHandler.Create<RotateCharacterCommand>(handler.On));

            return handler;
        }
[...]