Slopes and stuff
Adds support for slopes, slopes on FOFs, slopes on translucent FOFs, slopes on FOFs with holes in the flat, slope physics, dynamic slopes, vertex slopes, dynamic vertex slopes, and a ham sandwich to the game. Only for software mode right now, though. (OGL still gets the physics and the sandwich.) Some things still need to be done, but for now this can be merged in to be finished later.
Please make sure nothing in the vanilla game breaks before giving the thumbs up for this merge.
Since this doesn't merge automatically, if the code review turns out positive and nobody else has done it, I'll handle the merging.
See merge request !22
To be specific: when a sector had a sloped ceiling and a colormap was
placed above it, the colormap wouldn't fill anything above where the
ceiling height is at the sector's midpoint. This is fixed.
Tweaks to R_PointToAngle and R_PointToAngle2
Exactly what it says in the title! See commit description for more information on what I did, since I'm too lazy to write it all up a second time. =P
Could someone check that these changes don't cause anything else in particular to go wrong in the game or source code? I haven't checked myself that much yet, mostly because I totally forgot about this thing until now, lol.
See merge request !19
Note: Before this change, North and West directions would be returned as ANGLE_90-1 and ANGLE_180-1. This caused the pusher polyobjects in THZ2 to slowly move sideways as a side-effect (and probably caused similar bugs in the past too, these functions have barely been touched in a decade it turns out.)
Goo Water (THZ Goop) adjustements
At Nev3r's request:
Adjusted goop so that you spend less time bouncing around in it. The goop will become a walkable surface with a higher velocity threshold.
The actual goop physics haven't been altered as far as the initial entrance and underwater time is concerned, only leaving goop and subsequent bounces has been dampened significantly.
See merge request !7
finesine table
I pasted in finesine from #11 and made a merge request.
This has been lightly tested to ensure the renderer doesn't immediately break. No ill effects have been observed so far.
See merge request !17
A_SetObjectFlags tweak
Only reset the sector/blockmap links on an object calling A_SetObjectFlags if the MF_NOSECTOR|MF_NOBLOCKMAP flags change. Fixes a freeze related to LD442 demonstrated in MascaraSnake's example WAD at https://dl.dropboxusercontent.com/u/27962790/statetest.wad .
See merge request !11
Re-add/fix broken platform momz mobj code.
The changes in this branch re-add the platform's momentum to players and mobjs which leave the platform (eg. by jumping) so that they move with relative velocity as expected. This behavior was unintentionally broken in SRB2 2.0, which adds a lot of artificial difficulty to certain segments of the levels, where you have to jump between high velocity moving platforms which seemingly cut your jump height to nothing.
Not only has the behavior been fixed, but it has now been enhanced to move the camera while free-falling between platforms as well, completing the illusion of full relative velocity with minimal hiccups. [Observe.](http://i.imgur.com/zmSfUyp.gifv)
See merge request !14
Miscellanous fixes to merge
These are the commits from the "miscellanous-fixes" branch that are okay to merge in.
Bugs fixed include the following:
* CTF flags respawning incorrectly: they cannot z position themselves correctly, and they cannot flip themselves.
* The weird "jumping" spring/monitor effect: this is the result of an internal mobj_t pointer (tmfloorthing, specifically) not resetting itself to NULL for the next object's thinker, resulting in Z movement code thrusting the object vertically at tmfloorthing->momz.
See merge request !18
... because some things (Lua. custom header entries) move it.
https://mb.srb2.org/showthread.php?t=40580
(Technically breaks netgame compatibility for Lua-heavy mods, so in next.)
That's supposed to be run once a frame, not once per hook
per mobj per frame you moron. If you just run it seven
thousand times a frame, of course your framerate will drop.
Dummy, what do you think you're doing? If you
just push mobjs and players into Lua all willy-
nilly everywhere, you'll wind up generating
tons of metatables and stuff you arne't even
gonna use!
Oh. Thanks me, I'm really smart.
This _should_ solve some significant performance
issues Lua experiences. If not, I will be very
upset for having wasted so much time and effort.
There will be bugs, this kind of thing needs to
be thuroughly tested and this is just the first
iteration of it.
Assume that every frame the player is on the ground, their pmomz will
be re-set properly if the floor is moving, therefore if the platform
STOPS, we need this to set it to 0.
This fixes the issue with upside-down springs shooting downwards if you touch another of its kind. Also fixes one of the issues with monitors in Icicle Falls (after you phase inside the East-most float-bob FOF's monitor via the other bug and jump up to break it while there, the NEXT monitor moves upwards too)
Here's how it works: When a player walks off the
moving platform, it applies their pmomz once, and
then _keeps pmomz set_ so that the camera still
adds pmomz to its movements until they hit another
floor. This way, the camera doesn't jerk around.
Also gain velocity from walking off an "up" elevator normally?
This _looks_ incorrect because the camera stops matching
the platform movement the moment you step off, but I
assure you it is a correct and accurate movement.
(Try it with chasecam off.)
Now players will apply platform movement when jumping,
but only if the platform is moving the same direction
as their jump is, and all other objects will have an
appropriate pmomz in reverse gravity FOF situations.
These functions were already here before, and I /swear/ the slope
physics became slightly less glitchy after switching to them...
Only issue is the slope plane mapping code hasn't been properly
converted yet, so they don't render properly for now.
tmthing must not be set outside of P_MapStart and P_MapEnd
or the game will fail a sanity check which ensures that
mobj references are not persistent across frames and crash.
Angles now go from 0 to 0xFFFF (360 degrees == FRACUNIT) instead
of using a full UINT32. Lua only has one number type, so signedness
gets in the way of using angle_t directly. This handling of angles
matches up with how ZDoom ACS scripting and the like does it.
I also changed all the integer casts and pushes of fixed_t to
their own macro in preperation for possible future seperation.
EvalMath is for SOC only.
It spawns an entirely seperate instance of Lua and requires
uppercase-only strings, and it's ability to parse strings to
enums is redundant to Lua's _G table (try using
_G["MT_BLUECRAWLA"] for instance)
Your acceleration vector parallel to the slope is reduced based on slope
angle if it's going up the slope. The pull physics' momentum increase was
toned down a bit to go along with this. Also, I removed the ifdefs for
OLD_MOVEMENT_CODE because why should that be kept around?
Actual blockmap fix
MI's "fix" was a reversion of something that allowed 2.0 maps to use the entire blockmap. This MR reverts that fix and adds a proper fix to the issue of west/south edges of the blockmap not working as they should. Tested with a thokbarrier-less square map (all sides were solid) and with AGZ (objects are tangible all around the map, like they are in 2.1.14).
See merge request !10
Re-fix the server global variable in Lua
I screwed up the conditions on my first attempt to fix this, since I only tested one scenario. Tested this in SP, at the main menu, and both clientside and (dedicated)serverside in MP. Everything works as intended.
See merge request !9
Polyobject more fixes
Extra fixes related to polyobjects; actually properly putting their flats alongside them in the draw list, and making them able to use single-waypoint zoom tube sequences. Also threw in a smoothness fix for swinging chains while I was there.
See merge request !8
Polyobject scroll hotfix
Things fixed:
* Polyobjects should now carry the same thing types as conveyors (notable example; they'll now carry Crawlas when they wouldn't before)
* The drifting issue with players on spinning polyobjects should be fixed. (I swapped in the old bad hack for a new hack that should work like it's supposed to)
See merge request !6
Now it will only bounce ONCE when you jump on it, and Knuckles
just barely gets enough velocity out of his jump for even that.
This will leave players vulnerable and annoyed for a lot less
time while they wait to finish bouncing.
