Merge pull request #2210 from Citadel-Station-13/upstream-merge-29585

[MIRROR] Improves several Sound Loops' Performance

code/modules/power/gravitygenerator.dm

@@ -372,13 +372,14 @@ GLOBAL_LIST_EMPTY(gravity_generators) // We will keep track of this by adding ne
 // Shake everyone on the z level to let them know that gravity was enagaged/disenagaged.
 /obj/machinery/gravity_generator/main/proc/shake_everyone()
 	var/turf/T = get_turf(src)
+	var/sound/alert_sound = sound('sound/effects/alert.ogg')
 	for(var/mob/M in GLOB.mob_list)
 		if(M.z != z)
 			continue
 		M.update_gravity(M.mob_has_gravity())
 		if(M.client)
 			shake_camera(M, 15, 1)
-			M.playsound_local(T, 'sound/effects/alert.ogg', 100, 1, 0.5)
+			M.playsound_local(T, null, 100, 1, 0.5, S = alert_sound)
 
 /obj/machinery/gravity_generator/main/proc/gravity_in_level()
 	var/turf/T = get_turf(src)

code/modules/ruins/objects_and_mobs/necropolis_gate.dm

@@ -175,10 +175,12 @@ GLOBAL_DATUM(necropolis_gate, /obj/structure/necropolis_gate/legion_gate)
 		else
 			message_admins("[user ? key_name_admin(user):"Unknown"] has released Legion!")
 			log_game("[user ? key_name(user):"Unknown"] released Legion.")
+
+		var/sound/legion_sound = sound('sound/creatures/legion_spawn.ogg')
 		for(var/mob/M in GLOB.player_list)
 			if(M.z == z)
 				to_chat(M, "<span class='userdanger'>Discordant whispers flood your mind in a thousand voices. Each one speaks your name, over and over. Something horrible has been released.</span>")
-				M.playsound_local(T, 'sound/creatures/legion_spawn.ogg', 100, FALSE, 0, FALSE, pressure_affected = FALSE)
+				M.playsound_local(T, null, 100, FALSE, 0, FALSE, pressure_affected = FALSE, S = legion_sound)
 				flash_color(M, flash_color = "#FF0000", flash_time = 50)
 		var/mutable_appearance/release_overlay = mutable_appearance('icons/effects/effects.dmi', "legiondoor")
 		notify_ghosts("Legion has been released in the [get_area(src)]!", source = src, alert_overlay = release_overlay, action = NOTIFY_JUMP)