All gamestates besides GS_LEVEL are unsupported by the save game functions. This commit forces players joining during these gamestates into GS_WAITINGPLAYERS, which is a basic gamestate that just maintains the connection until we can enter the start of a new one. Also provides an extremely simple drawer for GS_WAITINGPLAYERS so the joining player knows what's going on.
Instead of modifying the game, cheats now set a separate "cheats were used in this session" variable, which returns some of the old behavior.
HOWEVER, cheats will STILL allow spawning / collecting emblems & unlocking unlockables. Cheats will purely prevent saving progress. (It was always frustrating that devmode would make debugging unlockable features harder...)
Lastly, the function to set no-saving was exposed to Lua (`G_SetUsedCheats(silent)`). Just thought it'd be useful for large-scale gamedata-using mods that want to add their own cheat commands.
(Except as part of srb2home, srb2path or addons_folder --
this lets addons menu work, primarily.)
- disallowed when using addfile or addfolder
- security check for xcmd receive
Was done this way for the sake of an older version of uncapped's timing; now that the new timing is much better, I decided it should remain as close to pre-uncapped as it can be.
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.
- 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)
Previously interpolated from last 35th of a second, which
may be offset from game time due to connection lag.
Consider this the proper fix to 54148a0dd0 too.
