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S.P.L.U.R.T-Station-13/code/datums/elements/forced_gravity.dm
Ghom ce1f1bdf5e Turning a few components into elements. (#12325)
* Turning a few components into elements.

* eh
2020-05-24 13:06:27 -07:00

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/datum/element/forced_gravity
element_flags = ELEMENT_BESPOKE
id_arg_index = 2
var/gravity
var/ignore_space
/datum/element/forced_gravity/Attach(datum/target, gravity=1, ignore_space=FALSE)
. = ..()
if(!isatom(target))
return ELEMENT_INCOMPATIBLE
src.gravity = gravity
src.ignore_space = ignore_space
RegisterSignal(target, COMSIG_ATOM_HAS_GRAVITY, .proc/gravity_check)
if(isturf(target))
RegisterSignal(target, COMSIG_TURF_HAS_GRAVITY, .proc/turf_gravity_check)
/datum/element/forced_gravity/Detach(datum/source, force)
. = ..()
var/static/list/signals_b_gone = list(COMSIG_ATOM_HAS_GRAVITY, COMSIG_TURF_HAS_GRAVITY)
UnregisterSignal(source, signals_b_gone)
/datum/element/forced_gravity/proc/gravity_check(datum/source, turf/location, list/gravs)
if(!ignore_space && isspaceturf(location))
return
gravs += gravity
/datum/element/forced_gravity/proc/turf_gravity_check(datum/source, atom/checker, list/gravs)
return gravity_check(null, source, gravs)