What changed in EDuke32, build by build

Fix system memory check

Patch from Fox to fix positioning of SCUBAMASK tile with the full status bar

Fix the automap glitch in the region around the full status bar in Polymost

Fix the direction which the shadow is cast in "modern" status bar ammo icon

Patch from Fox:

fix use of uninitialized values

Fix a couple minor issues with 90 degree wall texture rotation

Add mousebits gamevar to m32script for querying mouse button states

Fix issue where a useless error would be printed to the log and bad memory reads could occur when compiling a CON script with an invalid structure member passed as gamevar structure access shortcut shorthand

screentext alignment patch from Fox

rotatesprite hack from Fox

CON access to raw q16 values for player horiz and ang etc

Work around weird issue with Bgetsysmemsize() that occurs on exactly one system we've tested

Revert "SDL 2.0.9"

Fix issue with definegamefuncname and undefinegamefunc

Add error message for SDL_SetGammaRamp() failures in videoSetGamma()

Add C as a secondary binding for crouch and remove the mouse look and crosshair toggles from the default key bindings--they can still be bound manually if desired.

Fix missing/invalid palswaps and shades in automap with Polymost

Add EVENT_DISPLAYROOMSCAMERATILE

Make the gamma slider move in increments of 0.05 instead of 0.1

add wall point delete hotkey. Press shift+delete or the d key in 2d mode to delete a wall point without dragging it.

Add mutex to protect against S_Callback() being called from more than one thread at the same time

I honestly can't remember why I wrote this like this, but it's problematic so I'm changing it.

Make the time period between averaging the min and max values shown with r_showfps 2+ user configurable with r_showfpsperiod

Create new MV_CleanupVoice() function to handle most of what was in MV_StopVoice() plus the MV_CallBackFunc() functionality

Slightly revise multivoc locking logic

Fix an infinite loop in S_StopEnvSound() that could occur if the audio thread happened to finish playing a voice in between checking if g_sounds[].voices[].id > FX_Ok and calling FX_StopSound(), exacerbated by improper std::atomic usage

Re-add something I didn't intend to remove with r7297

Remove 'none' as an option for the frame limiter in the menu and fix a bug with the slider for the offset

Re-enable -fno-strict-aliasing because apparently many versions of GCC across many platforms are still producing warning spew without it

MSVC build fix

Fix NETCODE_DISABLED builds. We should probably rename Net_GetPackets() to something else, because it does other required things.

Fix loading screen tile

Fix issue where the option to enable or disable Polymer wasn't being saved properly

Fix issue where the player's pistol isn't removed when they spawn on HURTRAIL/FLOORSLIME/FLOORPLASMA

macOS build fix. DONT_BUILD.

Revert "engine.cpp/.h: clean up & fix lintersect(). Additionally, add support for finding intersections of collinear line segments."

Fix issue with editor not allowing wall and floor aligned sprites to be resized in 2d mode without textured view mode enabled

This should fix the too many sprites spawned issue in single player

Expand the list of options available for the framerate limiter, and add a separate option that controls an offset added to the limiter. This should allow the menu to cover all of the important use cases involving G-SYNC, FreeSync, and "Fast Sync".

Fix net.cpp line endings

Slight cleanup to MV_GetVorbisCommentLoops(). The biggest change here is swapping calls to atol to our Batol macro, which is actually backed by strtol instead of atol.

Hendricks and I discussed "auto *" and we've come to the conclusion that it's bad form, so this corrects that.

Reduce vorbis read block size from 32k to MV_MIXBUFFERSIZE. Despite requiring more calls into libvorbis, this should be faster on slower CPUs in cases where more copies of the same .ogg sound are attempting to be played at once than are allowed, e.g large explosion scenes in Ion Maiden.

I don't see a reason for these operations to be separated

Fix function that some sadist formatted with 3 spaces

- Packet code implementation (merge from private c/s repo), world updates are now synced through snapshots. See tag SVN_SyncPoint_Dec2018 on master of the other repo.

macOS build fix