[MIRROR] Being outdoors doesn't mean you can be dark forever (#6852)

Co-authored-by: Heroman3003 <31296024+Heroman3003@users.noreply.github.com>
Co-authored-by: Raeschen <rycoop29@gmail.com>

code/modules/lighting/lighting_fake_sun_vr.dm

@@ -1,3 +1,5 @@
+var/static/list/fake_sunlight_zs = list()
+
 /obj/effect/fake_sun
 	name = "fake sun"
 	desc = "Deletes itself, but first updates all the lighting on outdoor turfs."
@@ -140,6 +142,7 @@
 	sun.set_alpha(round(CLAMP01(choice["brightness"])*255,1))
 
 	if(do_sun)
+		fake_sunlight_zs |= z
 		for(var/turf/T as anything in turfs_to_use)
 			sun.apply_to_turf(T)
 

code/modules/lighting/lighting_turf.dm

@@ -96,12 +96,18 @@
 
 ///Setter for the byond luminosity var
 /turf/proc/set_luminosity(new_luminosity, force)
-	// SSplanets handles outdoor turfs
 	if((is_outdoors() && !force) || outdoors_adjacent)
-		return
+		if(check_for_sun()) //If another system handles our lighting, don't interfere
+			return
 
 	luminosity = new_luminosity
 
+///Checks planets and fake_suns to see if our turf should be handled by either
+/turf/proc/check_for_sun()
+	if((z in SSplanets.z_to_planet) || (z in fake_sunlight_zs))
+		return TRUE
+	return FALSE
+
 ///Calculate on which directions this turfs block view.
 /turf/proc/recalculate_directional_opacity()
 	. = directional_opacity