Accessing managers from game entities/components
- by Boreal
I'm designing an entity-component engine in C# right now, and all components need to have access to the global event manager, which sends off inter-entity events (every entity also has a local event manager).
I'd like to be able to simply call functions like this:
GlobalEventManager.Publish("Foo", new EventData());
GlobalEventManager.Subscribe("Bar", OnBarEvent);
without having to do this:
class HealthComponent
{
private EventManager globalEventManager;
public HealthComponent(EventManager gEM)
{
globalEventManager = gEM;
}
}
// later on...
EventManager globalEventManager = new EventManager();
Entity playerEntity = new Entity();
playerEntity.AddComponent(new HealthComponent(globalEventManager));
How can I accomplish this?
EDIT:
I solved it by creating a singleton called GlobalEventManager. It derives from the local EventManager class and I use it like this:
GlobalEventManager.Instance.Publish("Foo", new EventData());
