Makes Ghost HUD toggle persistent

code/modules/client/preferences.dm

@@ -32,6 +32,7 @@ var/list/preferences_datums = list()
 	var/chat_toggles = TOGGLES_DEFAULT_CHAT
 	var/ghost_form = "ghost"
 	var/ghost_orbit = GHOST_ORBIT_CIRCLE
+	var/ghost_hud = 1
 	var/allow_midround_antag = 1
 	var/preferred_map = null
 

code/modules/client/preferences_savefile.dm

@@ -181,6 +181,7 @@ SAVEFILE UPDATING/VERSIONING - 'Simplified', or rather, more coder-friendly ~Car
 	S["ghost_orbit"]		>> ghost_orbit
 	S["preferred_map"]		>> preferred_map
 	S["ignoring"]			>> ignoring
+	S["ghost_hud"]			>> ghost_hud
 
 	//try to fix any outdated data if necessary
 	if(needs_update >= 0)
@@ -220,6 +221,7 @@ SAVEFILE UPDATING/VERSIONING - 'Simplified', or rather, more coder-friendly ~Car
 	S["ghost_orbit"]		<< ghost_orbit
 	S["preferred_map"]		<< preferred_map
 	S["ignoring"]			<< ignoring
+	S["ghost_hud"]			<< ghost_hud
 
 	return 1
 

code/modules/client/preferences_toggles.dm

@@ -253,3 +253,14 @@ var/global/list/ghost_orbits = list(GHOST_ORBIT_CIRCLE,GHOST_ORBIT_TRIANGLE,GHOS
 	set desc = "Allows you to access the Setup Character screen. Changes to your character won't take effect until next round, but other changes will."
 	prefs.current_tab = 1
 	prefs.ShowChoices(usr)
+
+/client/verb/toggle_ghost_hud_pref()
+	set name = "Toggle Ghost HUD"
+	set category = "Preferences"
+	set desc = "Hide/Show Ghost HUD"
+	
+	prefs.ghost_hud = !prefs.ghost_hud
+	src << "Ghost HUD will now be [prefs.ghost_hud ? "visible" : "hidden"]."
+	prefs.save_preferences()
+	if(istype(mob,/mob/dead/observer))
+		mob.hud_used.ghost_hud()