/// Recommended way to create systems in general: pool.CreateSystem<RenderPositionSystem>(); public ReactiveSystem(IGroupObserverSystem subSystem) : this(subSystem, subSystem.groupObserver) { }
/// Recommended way to create systems in general: pool.CreateSystem(new MySystem()); public ReactiveSystem(IGroupObserverSystem subSystem) : this(subSystem, subSystem.groupObserver) { }