Fixed how two adjacent FOFs can prevent each others' walls from displaying if they're at least partially covered

Also some miscellaneous tweaks and changes to account for slopes properly

Unless I'm mistaken, scalesteps/heightsteps should be divided by stop-start, not stop-start+1. Revert this commit if that was intentional.

For the record, thok barriers count as "closed doors" in SRB2 level contexts

in other words, midtexture rendering should now correctly account for slopes from FOFs that could affect lighting/colormap

Inuyasha authored 9 years ago and Alam Ed Arias committed 9 years ago

Also makes comptime.bat work with git if able.
Development builds will now show the branch and the SHA1 hash of the revision. Also been tested to work with subversion, where it displays "Subversion r####". You know, just in case.

Sadly this does not fix ALL sprite issues, but just some of them at the least

a courtesy fuck you to gitlab for making me have to keep
the previous screwed up bullshit in this branch.

This reverts commit 4625118e.

This reverts commit 280e932f.

This partially reverts commit ef0e61fc.

Not when we have properly working ones!

Sorry MI, I'm hijacking your branch for a bit.

This reverts commit 474ad01b.

There is a caveat to this: The first time EvalMath is used, a
deprecated function warning will be shown to the user that tells
them to use _G[] instead.

This reverts commit 9d36cf37.

Revert "MF2_PUSHED is now MFE_PUSHED, for the simple reason that it makes more sense as an eflags object flag than a flags2 object flag!"

This reverts commit c8c78780.

# Conflicts:
#	src/dehacked.c
#	src/p_mobj.c
#	src/p_mobj.h