refactor is_blocked_turf (#29324)

code/datums/ai/basic_mobs/basic_ai_behaviors/basic_attacking.dm

@@ -115,7 +115,7 @@
 		var/turf/target_turf = get_step(our_turf, direction)
 		if(isnull(target_turf))
 			continue
-		if(is_blocked_turf(target_turf) || get_dist(target_turf, target) > get_dist(living_pawn, target))
+		if(target_turf.is_blocked_turf() || get_dist(target_turf, target) > get_dist(living_pawn, target))
 			continue
 		possible_turfs += target_turf
 

code/datums/ai/basic_mobs/basic_ai_behaviors/run_away_from_target.dm

@@ -52,7 +52,7 @@
 	var/turf/return_turf
 	for(var/i in 1 to run_distance)
 		var/turf/test_destination = get_ranged_target_turf_direct(source, target, range = i, offset = angle)
-		if(is_blocked_turf(test_destination, excluded_objs = GLOB.airlocks + src))
+		if(test_destination.is_blocked_turf(source_atom = source, ignore_atoms = GLOB.airlocks))
 			break
 		return_turf = test_destination
 	return return_turf

code/datums/components/shelved.dm

@@ -59,9 +59,13 @@
 	for(var/turf/turf_in_view in view(2, get_turf(structure_parent)))
 		if(!isfloorturf(turf_in_view))
 			continue
+		var/blocked_los = FALSE
 		for(var/turf/potential_blockage as anything in get_line(get_turf(structure_parent), turf_in_view))
-			if(!is_blocked_turf(potential_blockage, exclude_mobs = TRUE, excluded_objs = list(parent)))
-				nearby_empty_tiles += turf_in_view
+			if(potential_blockage.is_blocked_turf(exclude_mobs = TRUE, source_atom = parent))
+				blocked_los = TRUE
+				break
+		if(!blocked_los)
+			nearby_empty_tiles += turf_in_view
 
 	var/itemcount = 1
 	for(var/obj/item/I in structure_parent.loc)

code/datums/spells/ethereal_jaunt.dm

@@ -61,7 +61,7 @@
 	sleep(jaunt_in_time)
 	qdel(holder)
 	if(!QDELETED(target))
-		if(is_blocked_turf(mobloc, TRUE))
+		if(mobloc.is_blocked_turf(exclude_mobs = TRUE))
 			for(var/turf/T in orange(7))
 				if(isspaceturf(T))
 					continue