public SystemsSetup InputSystems()
        {
            _systems
            .Add(_pool.CreateSystem <PlayerRestartSystem>())
            .Add(_pool.CreateSystem <ReturnToPreviousViewSystem>())
            .Add(_pool.CreateSystem <RotateCameraInputSystem>())
            .Add(_pool.CreateSystem <HeroInputSystem>())
            .Add(_pool.CreateSystem <PerformInputQueueSystem>());

            return(this);
        }