Doomsday Engine

It looks like the HUD drawing logic that is present (and obviously not working) is all spread throughout `st_stuff`. Once I finish migrating this to C++, I'll refactor it all out and see about better HUD support.

I have just pushed a hud-cleanup work branch which I started a month or so back where I began doing just that. You may want to continue or adapt that work as it'll likely save you a fair amount of time.

With regards to the HUD, please bear in mind that we plan to replace the implementation entirely using libgui components. A primary goal for any cleanup work should therefore be code clarity. As opposed to best OO practices, code-quality concerns, etc...

danij wrote:

we plan to replace the implementation entirely using libgui components

• libgui is where the low-level OpenGL code resides. It does not contain any higher-level UI widget functionality.
• The new UI widgets in libappfw do their drawing using the OpenGL classes in libgui. These are the ones responsible for the engine UI overlay (task bar, console log, FPS indicator, etc.). This is completely engine-side functionality currently, because the game plugins have their own UI drawing code, including a simple widget system.
• There is a plan to replace the game plugins' menu system with one based on InFine and Doomsday Script (#1630).
• I am not aware of a concrete plan (in the tracker) for exactly how the game HUD widgets should be reworked. Having a direct dependency from libgui to the plugins is not advisable because game plugins must be compilable also in a server-only configuration. That's why there is currently the DGL API published by the engine (which provides a simple OpenGL 1 like drawing API), which is only offered to plugins by the client executable.

Indeed I should have been clearer. The plan is not to literally base the game side HUD widgets directly on top of libgui components. My usage being rather colloquial, there.

I've marked this as being related to #4 (UI Renovation) since implementing the 64TC hud effectively involved implementing DaniJ's HUD widget system for all engine plugins.