Introduce progress/loader window

[AaronVanGeffen]

This PR introduces a dedicated ProgressWindow to denote loading progress in a playful, graphical way. This is to be used instead of the NetworkStatus info when progress has measurable increments.

Preloader scene (slowed down):

Screen.Recording.2024-05-21.at.19.11.05.mov

Joining a server:

Screen.Recording.2024-05-21.at.19.11.17.mov

Track style reel:

Screen.Recording.2024-05-20.at.14.59.32.mov

To do:

• Show supports beneath the tracks
• Use in the preloader scene
• Use for downloading maps (multiplayer)
• Crop and optimise PNGs before merging
• Use for loading saves -> follow-up PR
• Use for map generator -> follow-up PR

[Gymnasiast]

Nice work! One though that I had: since most loading sessions will contain both status updates with just text, and updates with progress, we should maybe make sure that the respective windows look otherwise similar (i.e. use the same colours, be the same size, avoid text jumping around, ...). Doing so would make it look "calmer", for lack of a better word.

[AaronVanGeffen]

@Basssiiie I've decreased the drawing canvas by 1px on every side, effectively adding a slight margin. Here's what it looks like now:

The demo videos in the OP have been updated to reflect this change.

[AaronVanGeffen]

With the PNGs now cropped and optimised as well, I think this PR is now ready for review.

[Basssiiie]

Had a quick test after the last changes and functionally it all LGTM! 😄

[Gymnasiast]

Looked over the code and found only a small thing to nag about. Will proceed to test next.

[Gymnasiast]

Testing revealed no bugs.

Personally, I would have put the train in the middle for progress bar with indefinite progress, rather than at ~30%, but I’m not willing to let that block my approval.

[AaronVanGeffen]

Personally, I would have put the train in the middle for progress bar with indefinite progress, rather than at ~30%, but I’m not willing to let that block my approval.

I am, because the intention was to draw it halfway. Turns out my code was drawing the tip of the vehicle at 50%, rather than centring it there. I've now addressed that, and the result is in 2f05dc9.

[Gymnasiast]

OK, I’m not at home so I cannot test it easily. I’ll just trust you on this one, you can merge as far as I’m concerned ^^