Fix use after free bug

See merge request !315

Fixes an issue where mobjs with shadows would never get freed,

See merge request !314

due to their reference count getting reset after
having their shadows spawned, resulting in a reference count of -1
and the mobj never being freed, or a use-after-free during the shadow's thinker.
Also adds some P_SetTargets to P_BlockThingsIterator to fix an inconsistency I noticed while investigating this.

Move globalweather to before P_SpawnSpecials so that specials can properly change weather and have it communicated in savegames

It's designed to be referenced from P_RunTHinkers, whjich we aren't doing

with precipitation mobjs on netgame load

Fix use-after-frees around mobjs

See merge request !309

Miscellaneous memory bug fixes to make AddressSanitizer happy

See merge request !310

Fix dedicated node takeover

See merge request !308

that completely destroys servers

Make spectator HUD snap to bottom left of viewport

See merge request !306

Drawseg clipping optimized, from prboom-plus

See merge request !304

Sal authored 2 years ago and toaster committed 2 years ago

Ported and flattened from Sal's work on the internal repository

Don't advertise offline

See merge request !300

This appears to be a long-time bug that exists upstream too, but nobody even knew about it before the MS rules alert made it clear this was actually happening!

Don't use localaim/angle in skybox in demos

Closes #18

See merge request !299

cmake: add exchndl link on mingw32

See merge request !297

cmake: remove win32 subdirectory

See merge request !296

Make separate deadzones for x/y axis + menu options

See merge request !265

Don't sleep w/ fpscap 0 and vsync enabled

See merge request !294