Im currently working on a Entity Component System (ECS) for a game im developing in C# and Monogame.

My GameObject class has a dictionary with all its components, and this method is written to retrieve them.

internal T GetComponent<T> (bool imperative = false) where T : Component 
    {
      string name = typeof(T).Name;
      if (!components.ContainsKey(name))
      {
        if(imperative)
        {
          T newComp = default(T);
          AddComponent(newComp);
          return newComp;
        }
        throw new Exception("Component not found");
      }
      return (T)components[name];
    }

The thing is, that I want to pass this same function (inject this method, if you will) to a component in particular. This is because I want this component to be able to communicate with other components, without passing a reference to the dictionary.

I imagine this component should have something like this

public class UpdaterComponent: Component
{
  internal Func<T> GetComponent; //where T : Component 
  //...
}

And then in the constructor I could pass the function from the GameObject to the Component.
However I have no idea how to write this. I have read about delegates, but I don’t want to create a delegate for everytype of Component there is. Is there a clean way to write this?
Thanks!