* Multiplied rain speed by 3, per Oni's request.
* Disable weather density - force to 1 if weather draw distance, otherwise zero
* Move the ceilingpic check into a more convenient part of the weather spawning loop.
* `drawdist_precip_cons_t` - replaces "Infinite" with "None".
* Disable the lowest normal draw distance (256), given... both kart and srb2 are basically unplayable like that.
* Disable cv_drawdist_nights entirely.
Also, some camera tweaks:
* Force chasecam when exiting, just like it's forced when you're dead and not a spectator.
* Force a horizontal camera angle aiming when spectator and dead, to avoid skybox bugs.
* Improve control menus significantly - a more layout-neutral, gameplay importance based order, with spacing, and less depth to get to the important stuff.
* Port over the improved MP main menu from internal, including flattening the IP connect onto its level.
* Allow for selecting the number of splitscreen players using a menu option, rather than three seperate menu choices.
* Improve the layout of all of the level/gametype select menus slightly.
* (unrelated) Make fourth player area in 3p splitscreen use the tiling background instead of a pure black area.
* (unrelated) Tweak minimap ordering slightly.
Also, the "teleport" devmode command can now gracefully handle coordinates specified outside maps with no/few thok barriers, which previously prevented teleport via the thok barrier bleed's sector floor and ceiling being equal.
To understand: look at AjustSegs(void) in hw_bsp.c. It reallocates the vetex_t pointers for lines as POLYVERTEX_T pointers, and of COURSE things are gonna get wacky when you're casting pointers.
I dunno how resilient the FLOAT_TO_FIXED solution is or whether it'll be netgame compatible (yayyy float precision loss) but it's not like our builds are netgame compatible with themselves
Slope fixes
This branch fixes the following slope-related physics and rendering bugs:
* Rings in multiplayer stages respawning inside slopes (even despite being able to spawn ABOVE them on map load)
* Player starts spawning players inside slopes
* Elemental flame trails not appearing if a player spindashes UP a slope; see issue #21
* Dying players "jumping" off slopes to the side if they were previously standing on one
* Some issues with FOF slope rendering
* Various issues with sprites displaying through walls adjacent to slopes
Other features added:
* Objectplace now supports slopes (this is Inuyasha's doing)
* Automap in DEVMODE now supports slopes (my doing)
Just making this merge request now rather than later, ~~in case I decide not to make any more fixes for the time being~~ (this branch doesn't seem to want to die lol), and so we can get these merged in as soon as the code's all been checked over.
See merge request !50
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.)
