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Paradise/code/modules/lighting/lighting_process.dm

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/datum/controller/process/lighting/setup()
name = "lighting"
schedule_interval = LIGHTING_INTERVAL
create_lighting_overlays()
/datum/controller/process/lighting/doWork()
var/list/lighting_update_lights_old = lighting_update_lights //We use a different list so any additions to the update lists during a delay from scheck() don't cause things to be cut from the list without being updated.
lighting_update_lights = list()
for(var/datum/light_source/L in lighting_update_lights_old)
if(L.needs_update)
if(L.destroyed || L.check() || L.force_update)
L.remove_lum()
if(!L.destroyed) L.apply_lum()
L.force_update = 0
L.needs_update = 0
scheck()
var/list/lighting_update_overlays_old = lighting_update_overlays //Same as above.
lighting_update_overlays = list()
for(var/atom/movable/lighting_overlay/O in lighting_update_overlays_old)
if(O.needs_update)
O.update_overlay()
O.needs_update = 0
scheck()