Prevents some artifacts spawning mobs within objs. (#10615)

code/modules/mob/abstract/freelook/ai/chunk.dm

@@ -16,7 +16,8 @@
 			var/mob/living/silicon/ai/AI = source
 			if (AI.stat == DEAD)
 				continue
-			for(var/turf/t in seen_turfs_in_range(AI, world.view))
+			for(var/T in seen_turfs_in_range(AI, world.view))
+				var/turf/t = T
 				visible[t] = t
 		else
 			log_visualnet("Contained an unhandled source", source)

code/modules/mob/abstract/freelook/chunk.dm

@@ -183,10 +183,10 @@
 	return
 
 /proc/seen_turfs_in_range(var/source, var/range)
+	. = list()
 	var/turf/pos = get_turf(source)
 	if(pos)
-		. = hear(range, pos)
-	else
-		. = list()
+		for(var/turf/T in hear(range, pos))
+			. += T
 
 #undef UPDATE_BUFFER

code/modules/research/xenoarchaeology/finds/finds_special.dm

@@ -98,13 +98,13 @@
 	//use up stored charges
 	if(charges >= 10)
 		charges -= 10
-		new /obj/effect/spider/eggcluster(pick(view(1,src)))
+		new /obj/effect/spider/eggcluster(pick(seen_turfs_in_range(src, 1)))
 
 	if(charges >= 3)
 		if(prob(5))
 			charges -= 1
 			var/spawn_type = pick(/mob/living/simple_animal/hostile/creature)
-			new spawn_type(pick(view(1,src)))
+			new spawn_type(pick(seen_turfs_in_range(src, 1)))
 			playsound(src.loc, pick('sound/hallucinations/growl1.ogg','sound/hallucinations/growl2.ogg','sound/hallucinations/growl3.ogg'), 50, 1, -3)
 
 	if(charges >= 1)
@@ -147,7 +147,7 @@
 		M.apply_damage(rand(5, 10), BRUTE, target)
 		to_chat(M, "<span class='warning'>The skin on your [parse_zone(target)] feels like it's ripping apart, and a stream of blood flies out.</span>")
 		var/obj/effect/decal/cleanable/blood/splatter/animated/B = new(M.loc)
-		B.target_turf = pick(range(1, src))
+		B.target_turf = pick(seen_turfs_in_range(src, 1))
 		B.blood_DNA = list()
 		B.blood_DNA[M.dna.unique_enzymes] = M.dna.b_type
 		M.vessel.remove_reagent(/datum/reagent/blood,rand(25,50))
@@ -201,7 +201,7 @@
 
 /obj/effect/shadow_wight/process()
 	if(src.loc)
-		src.forceMove(get_turf(pick(orange(1,src))))
+		src.forceMove(pick(seen_turfs_in_range(src, 1) - get_turf(src)))
 		var/mob/living/carbon/M = locate() in src.loc
 		if(M)
 			playsound(src.loc, pick('sound/hallucinations/behind_you1.ogg',\