qol: Announcements Disabling. (ss220-space#6182)

* Update announce.dm

* Update announce.dm

code/defines/procs/announce.dm

@@ -13,6 +13,7 @@ GLOBAL_DATUM_INIT(event_announcement, /datum/announcement/priority/command/event
 	var/announcement_type = "Оповещение"
 	var/admin_announcement = 0 // Admin announcements are received regardless of being in range of a radio, unless you're in the lobby to prevent metagaming
 	var/language = LANGUAGE_GALACTIC_COMMON
+	var/beannounced = TRUE
 
 /datum/announcement/New(var/do_log = 0, var/new_sound = null, var/do_newscast = 0)
 	sound = new_sound
@@ -47,6 +48,8 @@ GLOBAL_DATUM_INIT(event_announcement, /datum/announcement/priority/command/event
 /datum/announcement/proc/Announce(message as text, new_title = "", new_sound = null, do_newscast = newscast, msg_sanitized = 0, from, msg_language)
 	if(!message)
 		return
+	if(!beannounced)
+		return
 
 	var/message_title = new_title ? new_title : title
 	var/message_sound = new_sound ? sound(new_sound) : sound