Merge pull request #6840 from Neerti/qol_notification_sounds

QoL: Various Notifications

code/modules/mob/dead/observer/observer.dm

@@ -85,6 +85,7 @@
 		"ED-209" = "ed209",
 		"Beepsky" = "secbot"
 		)
+	var/last_revive_notification = null // world.time of last notification, used to avoid spamming players from defibs or cloners.
 
 /mob/observer/dead/New(mob/body)
 	sight |= SEE_TURFS | SEE_MOBS | SEE_OBJS | SEE_SELF
@@ -137,6 +138,9 @@
 		var/mob/target = locate(href_list["track"]) in mob_list
 		if(target)
 			ManualFollow(target)
+	if(href_list["reenter"])
+		reenter_corpse()
+		return
 
 /mob/observer/dead/attackby(obj/item/W, mob/user)
 	if(istype(W,/obj/item/weapon/book/tome))
@@ -811,3 +815,18 @@ mob/observer/dead/MayRespawn(var/feedback = 0)
 
 /mob/observer/dead/speech_bubble_appearance()
 	return "ghost"
+
+// Lets a ghost know someone's trying to bring them back, and for them to get into their body.
+// Mostly the same as TG's sans the hud element, since we don't have TG huds.
+/mob/observer/dead/proc/notify_revive(var/message, var/sound, flashwindow = TRUE)
+	if((last_revive_notification + 2 MINUTES) > world.time)
+		return
+	last_revive_notification = world.time
+
+	if(flashwindow)
+		window_flash(client)
+	if(message)
+		to_chat(src, "<span class='ghostalert'><font size=4>[message]</font></span>")
+	to_chat(src, "<span class='ghostalert'><a href=?src=[REF(src)];reenter=1>(Click to re-enter)</a></span>")
+	if(sound)
+		SEND_SOUND(src, sound(sound))