Fixes #900 pop-in animation being affected by framerate

This reverts merge request !1920

Sal authored 2 years ago and Eidolon committed 2 years ago

Makes the displayed FPS more accurate to what it's actually displaying.

Also removed HUDTRANS from it -- stop it fading out during level transitions, it's annoying when I actually want to see the FPS during those bits.

System layer is greatly simplified and framecap
logic has been moved internally. I_Sleep now
takes a sleep duration and I_SleepDuration
generically implements a precise sleep with spin
loop.

Time is now tracked internally in the game using I_GetPreciseTime
and I_UpdateTime. I_Time now pulls from this internal timer. The
system code no longer needs to keep track of time itself.

This significantly improves frame and tic timing in interp mode,
resulting in a much smoother image with essentially no judder at
any framerate.

Sal authored 2 years ago and Eidolon committed 2 years ago

Simplifies logic in the other parts of the loop, and fixes problems with it frequently waiting too long.

Sal authored 2 years ago and Eidolon committed 2 years ago

- Disabled VSync, due to the numerous problems it has.
- Instead, added an FPS cap.
- Frame interpolation is now tied to fpscap != 35.
- By default, the FPS cap is set to the monitor's refresh rate.
- Rewrote the FPS counter.

(This also consolidates several more commits ahead of this
fixing various issues. -eid)

Sal authored 2 years ago and Eidolon committed 2 years ago

I decided ultimately to actually keep the frame skip optimization disabled, because I think it is actually a little bit helpful that you can still get accurate rendering perfstats while paused, however if we decide otherwise then we can have this optimization back without making the game act like it's lagging.

- Added render flags (see r_defs.h)
- Implemented floor splats
- Drop shadow sprite rendering through render flags

This reverts commit 569453ee.

And one line from b6089ccd.

* In-game timer option! Doesn't tick in intermission or in lag, only when a frame is actually run. Realtime option remains default.
* Tweak retry behaviour to restart timer and not subtract life if you're on the first level and haven't hit a checkpoint yet.

Introducing "antisplice" - a pair of small highlights on the Marathon bar that is based on the real time the executable has been open for and *isn't* restored with the Live Event Backup, making spliced runs basically intractable.

Introducing Marathon Run. (I was going to call it Marathon Mode, but NiGHTS Mode being right next to it on the menu looked terrible.)

Basically a dedicated Record Attack-like experience for speedrunning the game as a continuous chunk rather than ILs. Has several quality of life features.

Benefits include:
* An unambiguous real-time bar across the bottom of the screen, always displaying the current time, ticking up until you reach the ending.
* Disable the console (pausing is still allowed, but the timer will still increment).
* Automatically skip intermissions as if you're holding down the spin button.
* Show centiseconds on HUD automatically, like record attack.
* "Live Event Backups" - a category of run fit for major events like GDQ, where recovery from crashes or chokes makes for better entertainment. Essentially a modified SP savefile, down to using the same basic functions, but has its own filename and tweaked internal layout.
* "spmarathon_start" MainCfg block parameter and "marathonnext" mapheader parameter, allowing for a customised flow (makes this fit for purpose for an eventual SUGOI port).
* Disabling inter-level custom cutscenes by default with a menu option to toggle this (won't show up if the mod doesn't *have* any custom cutscenes), although either way ending cutscenes (vanilla or custom) remain intact since is time is called before them.
* Won't show up if you have a mod that consists of only one level (determined by spmarathon_start's nextlevel; this won't trip if you manually set its marathonnext).
* Unconditional gratitude on the evaluation screen, instead of a negging "Try again..." if you didn't get all the emeralds (which you may not have been aiming for).
* Gorgeous new menu (no new assets required, unless you wanna give it a header later).

Changes which were required for the above but affect other areas of the game include:
* "useBlackRock" MainCFG block parameter, which can be used to disable the presence of the Black Rock or Egg Rock in both the Evaluation screen and the Marathon Run menu (for total conversions with different stories).
* Disabling Continues in NiGHTS mode, to match the most common singleplayer experience post 2.2.4's release (is reverted if useContinues is set to true).
* Hiding the exitmove "powerup" outside of multiplayer. (Okay, this isn't really related, I just saw this bug in action a lot while doing test runs and got annoyed enough to fix it here.)
* The ability to use V_DrawPromptBack (in hardcode only at the moment, but) to draw in terms of pixels rather than rows of text, by providing negative instead of positive inputs).
* A refactoring of redundant game saves smattered across the ending, credits, and evaluation - in addition to saving the game slightly earlier.
* Minor m_menu.c touchups and refactorings here and there.

Built using feedback from the official server's #speedruns channel, among other places.