changes:
Openturfs now properly handle recursive icon copy.
Openturfs can now have icons, for translucent or bordered turfs. This works with the smoothing engine (or anything really)
Added openturf debug verb that lists ordering of the openturf.
Openturfs can now mark themselves as solid, for things like windows or ice.
BSTs can now toggle falling for themselves.
Fixes#3488.
changes:
Stairs now actually work.
Stairs now only move your mob up when you exit the last step.
Walking off the side of a staircase will now cause your mob to faceplant on the ground briefly.
Openturf now handles objects that cover more than one turf properly, such as multi-tile doors.
changes:
Added a isopenturf() macro, equivalent to istype(thing, /turf/simulated/open).
Converted most/all instances of istype(/turf/simulated/open) to isopenturf().
Made update_above()' aware of queue status & inlined a proc-call.
changes:
Queued icon updates now update the atom's associated openspace overlay or openturf.
update_oo() renamed to update_above(), and moved up to /atom. Only meaningful on /turf (updates above openturf if present) and /atom/movable (updates associated OO if present).
Demoted SSfalling to a regular subsystem (1ds tickrate).
Increased SSlighting's tickrate from 2 ds to 1 ds.
Intent: implement all of the features from #2442 while also unfucking the multiz movement files to be more readable and not recurse.
To that end, this PR does the following:
All multiz travel is now arbitrated by SSfalling. This will eliminate the need for recursion without relying on timers. Timers would be a bit scary.
The call chain for multiz movement now looks like this (in terms of overwritable procs):
can_fall() (Can lead into fall_impact() & fall_collateral() if returns FALSE)
fall_through() IF current block is open space ELSE fall_impact() & fall_collateral()
Removed almost every istype(src, A) check in the movement.dm file by exercising proper parenting and call chains.
Documented and standardized the contents of multiz/movement.dm. Because this is an API we're going to be relying on very heavily, I'd like to get this right before we move on.
A lot of minor tweaks, like swapping usr over to the applicable mob, and so on.
