S.P.L.U.R.T-Station-13/code/modules/mob/dead/observer/observer.dm

GLOBAL_LIST_EMPTY(ghost_images_default) //this is a list of the default (non-accessorized, non-dir) images of the ghosts themselves
GLOBAL_LIST_EMPTY(ghost_images_simple) //this is a list of all ghost images as the simple white ghost

GLOBAL_VAR_INIT(observer_default_invisibility, INVISIBILITY_OBSERVER)

/mob/dead/observer
	name = "ghost"
	desc = "It's a g-g-g-g-ghooooost!" //jinkies!
	icon = 'icons/mob/mob.dmi'
	icon_state = "ghost"
	layer = GHOST_LAYER
	stat = DEAD
	density = FALSE
	canmove = 0
	see_invisible = SEE_INVISIBLE_OBSERVER
	see_in_dark = 100
	invisibility = INVISIBILITY_OBSERVER
	hud_type = /datum/hud/ghost
	movement_type = GROUND | FLYING
	var/can_reenter_corpse
	var/datum/hud/living/carbon/hud = null // hud
	var/bootime = 0
	var/started_as_observer //This variable is set to 1 when you enter the game as an observer.
							//If you died in the game and are a ghsot - this will remain as null.
							//Note that this is not a reliable way to determine if admins started as observers, since they change mobs a lot.
	var/atom/movable/following = null
	var/fun_verbs = 0
	var/image/ghostimage_default = null //this mobs ghost image without accessories and dirs
	var/image/ghostimage_simple = null //this mob with the simple white ghost sprite
	var/ghostvision = 1 //is the ghost able to see things humans can't?
	var/mob/observetarget = null	//The target mob that the ghost is observing. Used as a reference in logout()
	var/ghost_hud_enabled = 1 //did this ghost disable the on-screen HUD?
	var/data_huds_on = 0 //Are data HUDs currently enabled?
	var/health_scan = FALSE //Are health scans currently enabled?
	var/list/datahuds = list(DATA_HUD_SECURITY_ADVANCED, DATA_HUD_MEDICAL_ADVANCED, DATA_HUD_DIAGNOSTIC_ADVANCED) //list of data HUDs shown to ghosts.
	var/ghost_orbit = GHOST_ORBIT_CIRCLE

	//These variables store hair data if the ghost originates from a species with head and/or facial hair.
	var/hair_style
	var/hair_color
	var/mutable_appearance/hair_overlay
	var/facial_hair_style
	var/facial_hair_color
	var/mutable_appearance/facial_hair_overlay

	var/updatedir = 1						//Do we have to update our dir as the ghost moves around?
	var/lastsetting = null	//Stores the last setting that ghost_others was set to, for a little more efficiency when we update ghost images. Null means no update is necessary

	//We store copies of the ghost display preferences locally so they can be referred to even if no client is connected.
	//If there's a bug with changing your ghost settings, it's probably related to this.
	var/ghost_accs = GHOST_ACCS_DEFAULT_OPTION
	var/ghost_others = GHOST_OTHERS_DEFAULT_OPTION
	// Used for displaying in ghost chat, without changing the actual name
	// of the mob
	var/deadchat_name
	var/datum/spawners_menu/spawners_menu

/mob/dead/observer/Initialize(mapload, mob/body)
	set_invisibility(GLOB.observer_default_invisibility)

	verbs += list(
		/mob/dead/observer/proc/dead_tele,
		/mob/dead/observer/proc/open_spawners_menu,
		/mob/dead/observer/proc/view_gas)

	if(icon_state in GLOB.ghost_forms_with_directions_list)
		ghostimage_default = image(src.icon,src,src.icon_state + "_nodir")
	else
		ghostimage_default = image(src.icon,src,src.icon_state)
	ghostimage_default.override = TRUE
	GLOB.ghost_images_default |= ghostimage_default

	ghostimage_simple = image(src.icon,src,"ghost_nodir")
	ghostimage_simple.override = TRUE
	GLOB.ghost_images_simple |= ghostimage_simple

	updateallghostimages()

	if(body)
		gender = body.gender
		if(body.mind && body.mind.name)
			name = body.mind.name
		else
			if(body.real_name)
				name = body.real_name
			else
				name = random_unique_name(gender)

		mind = body.mind	//we don't transfer the mind but we keep a reference to it.

		suiciding = body.suiciding // Transfer whether they committed suicide.

		if(ishuman(body))
			var/mob/living/carbon/human/body_human = body
			if(HAIR in body_human.dna.species.species_traits)
				hair_style = body_human.hair_style
				hair_color = brighten_color(body_human.hair_color)
			if(FACEHAIR in body_human.dna.species.species_traits)
				facial_hair_style = body_human.facial_hair_style
				facial_hair_color = brighten_color(body_human.facial_hair_color)

	update_icon()

	if(!isturf(loc))
		var/turf/T
		var/list/turfs = get_area_turfs(/area/shuttle/arrival)
		if(turfs.len)
			T = pick(turfs)
		else
			T = SSmapping.get_station_center()

		forceMove(T)

	if(!name)							//To prevent nameless ghosts
		name = random_unique_name(gender)
	real_name = name

	if(!fun_verbs)
		verbs -= /mob/dead/observer/verb/boo
		verbs -= /mob/dead/observer/verb/possess

	animate(src, pixel_y = 2, time = 10, loop = -1)

	GLOB.dead_mob_list += src

	for(var/v in GLOB.active_alternate_appearances)
		if(!v)
			continue
		var/datum/atom_hud/alternate_appearance/AA = v
		AA.onNewMob(src)

	. = ..()
	AddElement(/datum/element/ghost_role_eligibility)
	grant_all_languages()

/mob/dead/observer/get_photo_description(obj/item/camera/camera)
	if(!invisibility || camera.see_ghosts)
		return "You can also see a g-g-g-g-ghooooost!"

/mob/dead/observer/narsie_act()
	var/old_color = color
	color = "#960000"
	animate(src, color = old_color, time = 10, flags = ANIMATION_PARALLEL)
	addtimer(CALLBACK(src, /atom/proc/update_atom_colour), 10)

/mob/dead/observer/ratvar_act()
	var/old_color = color
	color = "#FAE48C"
	animate(src, color = old_color, time = 10, flags = ANIMATION_PARALLEL)
	addtimer(CALLBACK(src, /atom/proc/update_atom_colour), 10)

/mob/dead/observer/Destroy()
	GLOB.ghost_images_default -= ghostimage_default
	QDEL_NULL(ghostimage_default)

	GLOB.ghost_images_simple -= ghostimage_simple
	QDEL_NULL(ghostimage_simple)

	updateallghostimages()

	QDEL_NULL(spawners_menu)
	return ..()

/mob/dead/CanPass(atom/movable/mover, turf/target)
	return 1

/*
 * This proc will update the icon of the ghost itself, with hair overlays, as well as the ghost image.
 * Please call update_icon(icon_state) from now on when you want to update the icon_state of the ghost,
 * or you might end up with hair on a sprite that's not supposed to get it.
 * Hair will always update its dir, so if your sprite has no dirs the haircut will go all over the place.
 * |- Ricotez
 */
/mob/dead/observer/update_icon(new_form)
	. = ..()
	if(client) //We update our preferences in case they changed right before update_icon was called.
		ghost_accs = client.prefs.ghost_accs
		ghost_others = client.prefs.ghost_others

	if(hair_overlay)
		cut_overlay(hair_overlay)
		hair_overlay = null

	if(facial_hair_overlay)
		cut_overlay(facial_hair_overlay)
		facial_hair_overlay = null


	if(new_form)
		icon_state = new_form
		if(icon_state in GLOB.ghost_forms_with_directions_list)
			ghostimage_default.icon_state = new_form + "_nodir" //if this icon has dirs, the default ghostimage must use its nodir version or clients with the preference set to default sprites only will see the dirs
		else
			ghostimage_default.icon_state = new_form

	if(ghost_accs >= GHOST_ACCS_DIR && (icon_state in GLOB.ghost_forms_with_directions_list)) //if this icon has dirs AND the client wants to show them, we make sure we update the dir on movement
		updatedir = 1
	else
		updatedir = 0	//stop updating the dir in case we want to show accessories with dirs on a ghost sprite without dirs
		setDir(2 		)//reset the dir to its default so the sprites all properly align up

	if(ghost_accs == GHOST_ACCS_FULL && (icon_state in GLOB.ghost_forms_with_accessories_list)) //check if this form supports accessories and if the client wants to show them
		var/datum/sprite_accessory/S
		if(facial_hair_style)
			S = GLOB.facial_hair_styles_list[facial_hair_style]
			if(S)
				facial_hair_overlay = mutable_appearance(S.icon, "[S.icon_state]", -HAIR_LAYER)
				if(facial_hair_color)
					facial_hair_overlay.color = "#" + facial_hair_color
				facial_hair_overlay.alpha = 200
				add_overlay(facial_hair_overlay)
		if(hair_style)
			S = GLOB.hair_styles_list[hair_style]
			if(S)
				hair_overlay = mutable_appearance(S.icon, "[S.icon_state]", -HAIR_LAYER)
				if(hair_color)
					hair_overlay.color = "#" + hair_color
				hair_overlay.alpha = 200
				add_overlay(hair_overlay)

/*
 * Increase the brightness of a color by calculating the average distance between the R, G and B values,
 * and maximum brightness, then adding 30% of that average to R, G and B.
 *
 * I'll make this proc global and move it to its own file in a future update. |- Ricotez
 */
/mob/proc/brighten_color(input_color)
	var/r_val
	var/b_val
	var/g_val
	var/color_format = length(input_color)
	if(color_format != length_char(input_color))
		return 0
	if(color_format == 3)
		r_val = hex2num(copytext(input_color, 1, 2)) * 16
		g_val = hex2num(copytext(input_color, 2, 3)) * 16
		b_val = hex2num(copytext(input_color, 3, 0)) * 16
	else if(color_format == 6)
		r_val = hex2num(copytext(input_color, 1, 3))
		g_val = hex2num(copytext(input_color, 3, 5))
		b_val = hex2num(copytext(input_color, 5, 7))
	else
		return 0 //If the color format is not 3 or 6, you're using an unexpected way to represent a color.

	r_val += (255 - r_val) * 0.4
	if(r_val > 255)
		r_val = 255
	g_val += (255 - g_val) * 0.4
	if(g_val > 255)
		g_val = 255
	b_val += (255 - b_val) * 0.4
	if(b_val > 255)
		b_val = 255

	return copytext(rgb(r_val, g_val, b_val), 2)

/*
Transfer_mind is there to check if mob is being deleted/not going to have a body.
Works together with spawning an observer, noted above.
*/

/mob/proc/ghostize(can_reenter_corpse = TRUE, special = FALSE, penalize = FALSE, voluntary = FALSE)
	penalize = suiciding || penalize // suicide squad.
	voluntary_ghosted = voluntary
	if(!key || key[1] == "@" || (SEND_SIGNAL(src, COMSIG_MOB_GHOSTIZE, can_reenter_corpse, special, penalize) & COMPONENT_BLOCK_GHOSTING))
		return //mob has no key, is an aghost or some component hijacked.
	stop_sound_channel(CHANNEL_HEARTBEAT) //Stop heartbeat sounds because You Are A Ghost Now
	var/mob/dead/observer/ghost = new(get_turf(src), src)	// Transfer safety to observer spawning proc.
	SStgui.on_transfer(src, ghost) // Transfer NanoUIs.
	ghost.can_reenter_corpse = can_reenter_corpse
	if (client && client.prefs && client.prefs.auto_ooc)
		if (!(client.prefs.chat_toggles & CHAT_OOC))
			client.prefs.chat_toggles ^= CHAT_OOC
	transfer_ckey(ghost, FALSE)
	ghost.AddElement(/datum/element/ghost_role_eligibility,penalize) // technically already run earlier, but this adds the penalty
	// needs to be done AFTER the ckey transfer, too
	return ghost

/*
This is the proc mobs get to turn into a ghost. Forked from ghostize due to compatibility issues.
*/

/mob/living/verb/ghost()
	set category = "OOC"
	set name = "Ghost"
	set desc = "Relinquish your life and enter the land of the dead."

	var/penalty = CONFIG_GET(number/suicide_reenter_round_timer) MINUTES
	var/roundstart_quit_limit = CONFIG_GET(number/roundstart_suicide_time_limit) MINUTES
	if(world.time < roundstart_quit_limit)
		penalty += roundstart_quit_limit - world.time
	if(penalty + world.realtime - SSshuttle.realtimeofstart > SSshuttle.auto_call + SSshuttle.emergencyCallTime + SSshuttle.emergencyDockTime + SSshuttle.emergencyEscapeTime)
		penalty = CANT_REENTER_ROUND

	if(SEND_SIGNAL(src, COMSIG_MOB_GHOSTIZE, (stat == DEAD) ? TRUE : FALSE, FALSE, (stat == DEAD)? penalty : 0, (stat == DEAD)? TRUE : FALSE) & COMPONENT_BLOCK_GHOSTING)
		return

	if(stat != DEAD)
		succumb()
	if(stat == DEAD)
		ghostize(1)
	else
		var/response = alert(src, "Are you -sure- you want to ghost?\n(You are alive. If you ghost whilst alive you won't be able to re-enter this round [penalty ? "or play ghost roles [penalty == CANT_REENTER_ROUND ? "until the round is over" : "for the next [DisplayTimeText(penalty)]"]" : ""]! You can't change your mind so choose wisely!!)","Are you sure you want to ghost?","Ghost","Stay in body")
		if(response != "Ghost")
			return	//didn't want to ghost after-all
		if(istype(loc, /obj/machinery/cryopod))
			var/obj/machinery/cryopod/C = loc
			C.despawn_occupant()
		else
			suicide_log(TRUE)
			ghostize(FALSE, penalize = TRUE, voluntary = TRUE) //FALSE parameter is so we can never re-enter our body, "Charlie, you can never come baaaack~" :3


/mob/camera/verb/ghost()
	set category = "OOC"
	set name = "Ghost"
	set desc = "Relinquish your life and enter the land of the dead."

	if(SEND_SIGNAL(src, COMSIG_MOB_GHOSTIZE, FALSE, FALSE) & COMPONENT_BLOCK_GHOSTING)
		return

	var/penalty = CONFIG_GET(number/suicide_reenter_round_timer) MINUTES
	var/roundstart_quit_limit = CONFIG_GET(number/roundstart_suicide_time_limit) MINUTES
	if(world.time < roundstart_quit_limit)
		penalty += roundstart_quit_limit - world.time
	if(penalty + world.realtime - SSshuttle.realtimeofstart > SSshuttle.auto_call + SSshuttle.emergencyCallTime + SSshuttle.emergencyDockTime + SSshuttle.emergencyEscapeTime)
		penalty = CANT_REENTER_ROUND

	var/response = alert(src, "Are you -sure- you want to ghost?\n(You are alive. If you ghost whilst alive you won't be able to re-enter this round [penalty ? "or play ghost roles [penalty == CANT_REENTER_ROUND ? "until the round is over" : "for the next [DisplayTimeText(penalty)]"]" : ""]! You can't change your mind so choose wisely!!)","Are you sure you want to ghost?","Ghost","Stay in body")
	if(response != "Ghost")
		return
	ghostize(0, penalize = TRUE)



/mob/dead/observer/Move(NewLoc, direct)
	if(updatedir)
		setDir(direct)//only update dir if we actually need it, so overlays won't spin on base sprites that don't have directions of their own
	var/oldloc = loc

	if(NewLoc)
		forceMove(NewLoc)
		update_parallax_contents()
	else
		forceMove(get_turf(src))  //Get out of closets and such as a ghost
		if((direct & NORTH) && y < world.maxy)
			y++
		else if((direct & SOUTH) && y > 1)
			y--
		if((direct & EAST) && x < world.maxx)
			x++
		else if((direct & WEST) && x > 1)
			x--

	Moved(oldloc, direct)

/mob/dead/observer/verb/reenter_corpse()
	set category = "Ghost"
	set name = "Re-enter Corpse"
	if(!client)
		return
	if(!mind || QDELETED(mind.current))
		to_chat(src, "<span class='warning'>You have no body.</span>")
		return
	if(!can_reenter_corpse)
		to_chat(src, "<span class='warning'>You cannot re-enter your body.</span>")
		return
	if(mind.current.key && mind.current.key[1] != "@")	//makes sure we don't accidentally kick any clients
		to_chat(usr, "<span class='warning'>Another consciousness is in your body...It is resisting you.</span>")
		return
	client.change_view(CONFIG_GET(string/default_view))
	SStgui.on_transfer(src, mind.current) // Transfer NanoUIs.
	transfer_ckey(mind.current, FALSE)
	return 1

/mob/dead/observer/proc/notify_cloning(var/message, var/sound, var/atom/source, flashwindow = TRUE)
	if(flashwindow)
		window_flash(client)
	if(message)
		to_chat(src, "<span class='ghostalert'>[message]</span>")
		if(source)
			var/obj/screen/alert/A = throw_alert("[REF(source)]_notify_cloning", /obj/screen/alert/notify_cloning)
			if(A)
				if(client && client.prefs && client.prefs.UI_style)
					A.icon = ui_style2icon(client.prefs.UI_style)
				A.desc = message
				var/old_layer = source.layer
				var/old_plane = source.plane
				source.layer = FLOAT_LAYER
				source.plane = FLOAT_PLANE
				A.add_overlay(source)
				source.layer = old_layer
				source.plane = old_plane
	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))

/mob/dead/observer/proc/dead_tele()
	set category = "Ghost"
	set name = "Teleport"
	set desc= "Teleport to a location"
	if(!isobserver(usr))
		to_chat(usr, "Not when you're not dead!")
		return
	var/list/filtered = list()
	for(var/V in GLOB.sortedAreas)
		var/area/A = V
		if(!A.hidden)
			filtered += A
	var/area/thearea  = input("Area to jump to", "BOOYEA") as null|anything in filtered

	if(!thearea)
		return

	var/list/L = list()
	for(var/turf/T in get_area_turfs(thearea.type))
		L+=T

	if(!L || !L.len)
		to_chat(usr, "No area available.")
		return

	usr.forceMove(pick(L))
	update_parallax_contents()

/mob/dead/observer/proc/view_gas()
	set category = "Ghost"
	set name = "View Gases"
	set desc= "View the atmospheric conditions in a location"

	var/turf/loc = get_turf(src)
	show_air_status_to(loc, usr)

/mob/dead/observer/verb/follow()
	set category = "Ghost"
	set name = "Orbit" // "Haunt"
	set desc = "Follow and orbit a mob."

	var/list/mobs = getpois(skip_mindless=1)
	var/input = input("Please, select a mob!", "Haunt", null, null) as null|anything in mobs
	var/mob/target = mobs[input]
	ManualFollow(target)

// This is the ghost's follow verb with an argument
/mob/dead/observer/proc/ManualFollow(atom/movable/target)
	if (!istype(target))
		return

	var/icon/I = icon(target.icon,target.icon_state,target.dir)

	var/orbitsize = (I.Width()+I.Height())*0.5
	orbitsize -= (orbitsize/world.icon_size)*(world.icon_size*0.25)

	var/rot_seg

	switch(ghost_orbit)
		if(GHOST_ORBIT_TRIANGLE)
			rot_seg = 3
		if(GHOST_ORBIT_SQUARE)
			rot_seg = 4
		if(GHOST_ORBIT_PENTAGON)
			rot_seg = 5
		if(GHOST_ORBIT_HEXAGON)
			rot_seg = 6
		else //Circular
			rot_seg = 36 //360/10 bby, smooth enough aproximation of a circle

	orbit(target,orbitsize, FALSE, 20, rot_seg)

/mob/dead/observer/orbit()
	setDir(2)//reset dir so the right directional sprites show up
	return ..()

/mob/dead/observer/stop_orbit(datum/component/orbiter/orbits)
	. = ..()
	//restart our floating animation after orbit is done.
	pixel_y = 0
	animate(src, pixel_y = 2, time = 10, loop = -1)

/mob/dead/observer/verb/jumptomob() //Moves the ghost instead of just changing the ghosts's eye -Nodrak
	set category = "Ghost"
	set name = "Jump to Mob"
	set desc = "Teleport to a mob"

	if(isobserver(usr)) //Make sure they're an observer!


		var/list/dest = list() //List of possible destinations (mobs)
		var/target = null	   //Chosen target.

		dest += getpois(mobs_only=1) //Fill list, prompt user with list
		target = input("Please, select a player!", "Jump to Mob", null, null) as null|anything in dest

		if (!target)//Make sure we actually have a target
			return
		else
			var/mob/M = dest[target] //Destination mob
			var/mob/A = src			 //Source mob
			var/turf/T = get_turf(M) //Turf of the destination mob

			if(T && isturf(T))	//Make sure the turf exists, then move the source to that destination.
				A.forceMove(T)
				A.update_parallax_contents()
			else
				to_chat(A, "This mob is not located in the game world.")

/mob/dead/observer/verb/change_view_range()
	set category = "Ghost"
	set name = "View Range"
	set desc = "Change your view range."

	var/max_view = client.prefs.unlock_content ? GHOST_MAX_VIEW_RANGE_MEMBER : GHOST_MAX_VIEW_RANGE_DEFAULT
	if(client.view == CONFIG_GET(string/default_view))
		var/list/views = list()
		for(var/i in 7 to max_view)
			views |= i
		var/new_view = input("Choose your new view", "Modify view range", 7) as null|anything in views
		if(new_view)
			client.change_view(CLAMP(new_view, 7, max_view))
	else
		client.change_view(CONFIG_GET(string/default_view))

/mob/dead/observer/verb/add_view_range(input as num)
	set name = "Add View Range"
	set hidden = TRUE
	var/max_view = client.prefs.unlock_content ? GHOST_MAX_VIEW_RANGE_MEMBER : GHOST_MAX_VIEW_RANGE_DEFAULT
	if(input)
		client.rescale_view(input, 15, (max_view*2)+1)

/mob/dead/observer/verb/boo()
	set category = "Ghost"
	set name = "Boo!"
	set desc= "Scare your crew members because of boredom!"

	if(bootime > world.time)
		return
	var/obj/machinery/light/L = locate(/obj/machinery/light) in view(1, src)
	if(L)
		L.flicker()
		bootime = world.time + 600
		return
	//Maybe in the future we can add more <i>spooky</i> code here!
	return


/mob/dead/observer/memory()
	set hidden = 1
	to_chat(src, "<span class='danger'>You are dead! You have no mind to store memory!</span>")

/mob/dead/observer/add_memory()
	set hidden = 1
	to_chat(src, "<span class='danger'>You are dead! You have no mind to store memory!</span>")

/mob/dead/observer/verb/toggle_ghostsee()
	set name = "Toggle Ghost Vision"
	set desc = "Toggles your ability to see things only ghosts can see, like other ghosts"
	set category = "Ghost"
	ghostvision = !(ghostvision)
	update_sight()
	to_chat(usr, "You [(ghostvision?"now":"no longer")] have ghost vision.")

/mob/dead/observer/verb/toggle_darkness()
	set name = "Toggle Darkness"
	set category = "Ghost"
	switch(lighting_alpha)
		if (LIGHTING_PLANE_ALPHA_VISIBLE)
			lighting_alpha = LIGHTING_PLANE_ALPHA_MOSTLY_VISIBLE
		if (LIGHTING_PLANE_ALPHA_MOSTLY_VISIBLE)
			lighting_alpha = LIGHTING_PLANE_ALPHA_MOSTLY_INVISIBLE
		if (LIGHTING_PLANE_ALPHA_MOSTLY_INVISIBLE)
			lighting_alpha = LIGHTING_PLANE_ALPHA_INVISIBLE
		else
			lighting_alpha = LIGHTING_PLANE_ALPHA_VISIBLE

	update_sight()

/mob/dead/observer/update_sight()
	if(client)
		ghost_others = client.prefs.ghost_others //A quick update just in case this setting was changed right before calling the proc

	if (!ghostvision)
		see_invisible = SEE_INVISIBLE_LIVING
	else
		see_invisible = SEE_INVISIBLE_OBSERVER


	updateghostimages()
	..()

/proc/updateallghostimages()
	listclearnulls(GLOB.ghost_images_default)
	listclearnulls(GLOB.ghost_images_simple)

	for (var/mob/dead/observer/O in GLOB.player_list)
		O.updateghostimages()

/mob/dead/observer/proc/updateghostimages()
	if (!client)
		return

	if(lastsetting)
		switch(lastsetting) //checks the setting we last came from, for a little efficiency so we don't try to delete images from the client that it doesn't have anyway
			if(GHOST_OTHERS_DEFAULT_SPRITE)
				client.images -= GLOB.ghost_images_default
			if(GHOST_OTHERS_SIMPLE)
				client.images -= GLOB.ghost_images_simple
	lastsetting = client.prefs.ghost_others
	if(!ghostvision)
		return
	if(client.prefs.ghost_others != GHOST_OTHERS_THEIR_SETTING)
		switch(client.prefs.ghost_others)
			if(GHOST_OTHERS_DEFAULT_SPRITE)
				client.images |= (GLOB.ghost_images_default-ghostimage_default)
			if(GHOST_OTHERS_SIMPLE)
				client.images |= (GLOB.ghost_images_simple-ghostimage_simple)

/mob/dead/observer/verb/possess()
	set category = "Ghost"
	set name = "Possess!"
	set desc= "Take over the body of a mindless creature!"

	if(!can_reenter_round())
		return FALSE

	var/list/possessible = list()
	for(var/mob/living/L in GLOB.alive_mob_list)
		if(istype(L,/mob/living/carbon/human/dummy) || !get_turf(L)) //Haha no.
			continue
		if(!(L in GLOB.player_list) && !L.mind)
			possessible += L

	var/mob/living/target = input("Your new life begins today!", "Possess Mob", null, null) as null|anything in possessible

	if(!target)
		return 0

	if(ismegafauna(target))
		to_chat(src, "<span class='warning'>This creature is too powerful for you to possess!</span>")
		return 0

	if(can_reenter_corpse && mind && mind.current)
		if(alert(src, "Your soul is still tied to your former life as [mind.current.name], if you go forward there is no going back to that life. Are you sure you wish to continue?", "Move On", "Yes", "No") == "No")
			return 0
	if(target.key)
		to_chat(src, "<span class='warning'>Someone has taken this body while you were choosing!</span>")
		return 0

	transfer_ckey(target, FALSE)
	target.faction = list("neutral")
	return 1

//this is a mob verb instead of atom for performance reasons
//see /mob/verb/examinate() in mob.dm for more info
//overridden here and in /mob/living for different point span classes and sanity checks
/mob/dead/observer/pointed(atom/A as mob|obj|turf in view())
	if(!..())
		return 0
	usr.visible_message("<span class='deadsay'><b>[src]</b> points to [A].</span>")
	return 1

/mob/dead/observer/verb/view_manifest()
	set name = "View Crew Manifest"
	set category = "Ghost"

	var/dat
	dat += "<h4>Crew Manifest</h4>"
	dat += GLOB.data_core.get_manifest()

	src << browse(dat, "window=manifest;size=387x420;can_close=1")

//this is called when a ghost is drag clicked to something.
/mob/dead/observer/MouseDrop(atom/over)
	if(!usr || !over)
		return
	if (isobserver(usr) && usr.client.holder && (isliving(over) || iscameramob(over)) )
		if (usr.client.holder.cmd_ghost_drag(src,over))
			return

	return ..()

/mob/dead/observer/Topic(href, href_list)
	..()
	if(usr == src)
		if(href_list["follow"])
			var/atom/movable/target = locate(href_list["follow"])
			if(istype(target) && (target != src))
				ManualFollow(target)
				return
		if(href_list["x"] && href_list["y"] && href_list["z"])
			var/tx = text2num(href_list["x"])
			var/ty = text2num(href_list["y"])
			var/tz = text2num(href_list["z"])
			var/turf/target = locate(tx, ty, tz)
			if(istype(target))
				forceMove(target)
				return
		if(href_list["reenter"])
			reenter_corpse()
			return

//We don't want to update the current var
//But we will still carry a mind.
/mob/dead/observer/mind_initialize()
	return

/mob/dead/observer/proc/show_data_huds()
	for(var/hudtype in datahuds)
		var/datum/atom_hud/H = GLOB.huds[hudtype]
		H.add_hud_to(src)

/mob/dead/observer/proc/remove_data_huds()
	for(var/hudtype in datahuds)
		var/datum/atom_hud/H = GLOB.huds[hudtype]
		H.remove_hud_from(src)

/mob/dead/observer/verb/toggle_data_huds()
	set name = "Toggle Sec/Med/Diag HUD"
	set desc = "Toggles whether you see medical/security/diagnostic HUDs"
	set category = "Ghost"

	if(data_huds_on) //remove old huds
		remove_data_huds()
		to_chat(src, "<span class='notice'>Data HUDs disabled.</span>")
		data_huds_on = 0
	else
		show_data_huds()
		to_chat(src, "<span class='notice'>Data HUDs enabled.</span>")
		data_huds_on = 1

/mob/dead/observer/verb/toggle_health_scan()
	set name = "Toggle Health Scan"
	set desc = "Toggles whether you health-scan living beings on click"
	set category = "Ghost"

	if(health_scan) //remove old huds
		to_chat(src, "<span class='notice'>Health scan disabled.</span>")
		health_scan = FALSE
	else
		to_chat(src, "<span class='notice'>Health scan enabled.</span>")
		health_scan = TRUE

/mob/dead/observer/verb/restore_ghost_appearance()
	set name = "Restore Ghost Character"
	set desc = "Sets your deadchat name and ghost appearance to your \
		roundstart character."
	set category = "Ghost"

	set_ghost_appearance()
	if(client && client.prefs)
		deadchat_name = client.prefs.real_name

/mob/dead/observer/proc/set_ghost_appearance()
	if((!client) || (!client.prefs))
		return

	if(client.prefs.be_random_name)
		client.prefs.real_name = random_unique_name(gender)
	if(client.prefs.be_random_body)
		client.prefs.random_character(gender)

	if(HAIR in client.prefs.pref_species.species_traits)
		hair_style = client.prefs.hair_style
		hair_color = brighten_color(client.prefs.hair_color)
	if(FACEHAIR in client.prefs.pref_species.species_traits)
		facial_hair_style = client.prefs.facial_hair_style
		facial_hair_color = brighten_color(client.prefs.facial_hair_color)

	update_icon()

/mob/dead/observer/canUseTopic(atom/movable/M, be_close=FALSE, no_dextery=FALSE, no_tk=FALSE)
	return IsAdminGhost(usr)

/mob/dead/observer/is_literate()
	return 1

/mob/dead/observer/vv_edit_var(var_name, var_value)
	. = ..()
	switch(var_name)
		if("icon")
			ghostimage_default.icon = icon
			ghostimage_simple.icon = icon
		if("icon_state")
			ghostimage_default.icon_state = icon_state
			ghostimage_simple.icon_state = icon_state
		if("fun_verbs")
			if(fun_verbs)
				verbs += /mob/dead/observer/verb/boo
				verbs += /mob/dead/observer/verb/possess
			else
				verbs -= /mob/dead/observer/verb/boo
				verbs -= /mob/dead/observer/verb/possess

/mob/dead/observer/reset_perspective(atom/A)
	if(client)
		if(ismob(client.eye) && (client.eye != src))
			var/mob/target = client.eye
			observetarget = null
			if(target.observers)
				target.observers -= src
				UNSETEMPTY(target.observers)
	if(..())
		if(hud_used)
			client.screen = list()
			hud_used.show_hud(hud_used.hud_version)

/mob/dead/observer/verb/observe()
	set name = "Observe"
	set category = "OOC"

	var/list/creatures = getpois()

	reset_perspective(null)

	var/eye_name = null

	eye_name = input("Please, select a player!", "Observe", null, null) as null|anything in creatures

	if (!eye_name)
		return

	var/mob/mob_eye = creatures[eye_name]
	//Istype so we filter out points of interest that are not mobs
	if(client && mob_eye && istype(mob_eye))
		client.eye = mob_eye
		if(mob_eye.hud_used)
			client.screen = list()
			LAZYINITLIST(mob_eye.observers)
			mob_eye.observers |= src
			mob_eye.hud_used.show_hud(mob_eye.hud_used.hud_version, src)
			observetarget = mob_eye

/mob/dead/observer/verb/register_pai_candidate()
	set category = "Ghost"
	set name = "pAI Setup"
	set desc = "Upload a fragment of your personality to the global pAI databanks"

	register_pai()

/mob/dead/observer/proc/register_pai()
	if(isobserver(src))
		SSpai.recruitWindow(src)
	else
		to_chat(usr, "Can't become a pAI candidate while not dead!")

/mob/dead/observer/CtrlShiftClick(mob/user)
	if(isobserver(user) && check_rights(R_SPAWN))
		change_mob_type( /mob/living/carbon/human , null, null, TRUE) //always delmob, ghosts shouldn't be left lingering

/mob/dead/observer/examine(mob/user)
	. = ..()
	if(!invisibility)
		. += "It seems extremely obvious."

/mob/dead/observer/proc/set_invisibility(value)
	invisibility = value
	if(!value)
		set_light(1, 2)
	else
		set_light(0, 0)

// Ghosts have no momentum, being massless ectoplasm
/mob/dead/observer/Process_Spacemove(movement_dir)
	return 1

/mob/dead/observer/vv_edit_var(var_name, var_value)
	. = ..()
	if(var_name == "invisibility")
		set_invisibility(invisibility) // updates light

/proc/set_observer_default_invisibility(amount, message=null)
	for(var/mob/dead/observer/G in GLOB.player_list)
		G.set_invisibility(amount)
		if(message)
			to_chat(G, message)
	GLOB.observer_default_invisibility = amount

/mob/dead/observer/proc/open_spawners_menu()
	set name = "Spawners Menu"
	set desc = "See all currently available spawners"
	set category = "Ghost"
	if(!spawners_menu)
		spawners_menu = new(src)

	spawners_menu.ui_interact(src)