Replaces a bunch of loc assignments with forcemoves and moves to nullspace

code/game/objects/effects/spiders.dm

@@ -121,7 +121,7 @@
 
 /obj/structure/spider/spiderling/Collide(atom/user)
 	if(istype(user, /obj/structure/table))
-		src.loc = user.loc
+		forceMove(user.loc)
 	else
 		..()
 
@@ -145,7 +145,7 @@
 								"<span class='italics'>You hear something scampering through the ventilation ducts.</span>")
 
 			spawn(rand(20,60))
-				loc = exit_vent
+				forceMove(exit_vent)
 				var/travel_time = round(get_dist(loc, exit_vent.loc) / 2)
 				spawn(travel_time)
 
@@ -159,7 +159,7 @@
 					sleep(travel_time)
 
 					if(!exit_vent || exit_vent.welded)
-						loc = entry_vent
+						forceMove(entry_vent)
 						entry_vent = null
 						return
 					loc = exit_vent.loc