So, everything is running smoothly and I decided to change something up river. Part of the framework. I wasn't happy with my object handler code. It is a basic wrapper for a std::unordered_map of objects. The problem was that the object being stored was a 'has'. I changed it to an 'is'. Then I had to rework everything down stream. Finally after a couple of hours it's back to running smoothly again.

I recently added multithreading to my game (splitting logic and rendering into two separate threads). Broke so much stuff in the process. Some stuff is still broken a over month later.

I also moved large parts of the renderer to C++, which created rendering glitches. I think those are all fixed but there's still more rendering code that needs to be migrated...

I'm going to be adding support for multiplayer so massive breaking change #3 incoming.

I reworked the object system, then had to rework everything else.

Instead of storing the type in the object handler, I had to store the type in the object.

That meant, I couldn't just add a ALLEGRO_BITMAP to my handler.

So, I made a base object class with a single variable (int type).
And a derived wrapper sub class for Allegro objects.
Any custom objects are also derived from the main object class.

I also modified the manifest file. Display is still required, but the rest (timer, queue) I add in the background.

It's reworked and running great.

//Everying is loaded and/or created in the manifest parser
if (Parser::parseManifest(manifest_file) < 0)
{
  return -1;
}

// draw code
bool Game::OnRender(Allegro::Display& display)
{
  al_clear_to_color(al_map_rgb(0, 0, 255));

  Allegro::Font* font = static_cast<Allegro::Font*>(Object::getRegistry()->at("@font/main"));
  if (font)
  {
    al_draw_text(font->get(), al_map_rgb(255, 255, 255), 40, 40, 0, "Hello World!");
  }

  return false;
}

result
{"name":"613227","src":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/9\/1\/916606dd990143214738360e83366eb9.png","w":1041,"h":818,"tn":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/9\/1\/916606dd990143214738360e83366eb9"}

"C++ has become much better in the last ten years", they said...

No, but maybe a function. Just an example.

inline Font* Registry::GetFont(Object* o) {
   return dynamic_cast<Font*>(o);
}
//... This is literally what I have in Eagle
win->DrawText(win->GetFont("Verdana.ttf") , "Hello Verdana" , 10 , 10 , EagleColor(255,255,255) , ALIGN_LEFT , ALIGN_TOP );

You could also use simple templates

class ObjectRegistry {
...
 template <typename T>
 T at(const char* key) {
  return static_cast<T>(__at(key));
 }
};

where __at is the function that accesses the registry.
Use like

auto font = Object::getRegistry()->at<Allegro::Font*>("@font/main");

If there's only one registry that's global I suppose you could alternatively

template <typename T>
T get(const char* key) {
 return static_cast<T>(Object::getRegistry()->at(key));
}
...
auto font = get<Allegro::Font*>("@font/main");

{"name":"613227","src":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/9\/1\/916606dd990143214738360e83366eb9.png","w":1041,"h":818,"tn":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/9\/1\/916606dd990143214738360e83366eb9"}

^^ What's the name of this fancy font you're using here? I feel like I need to embrace more fantasy fonts in my designs. 🤔