Refactors totalXenos, tweaks some tier 0 things, adds a xeno anti-delay warning

code/controllers/subsystem/hijack.dm

@@ -201,7 +201,7 @@ SUBSYSTEM_DEF(hijack)
 	var/datum/hive_status/hive
 	for(var/hivenumber in GLOB.hive_datum)
 		hive = GLOB.hive_datum[hivenumber]
-		if(!length(hive.totalXenos))
+		if(!length(hive.total_living_xenos))
 			continue
 
 		switch(announce)
@@ -307,7 +307,7 @@ SUBSYSTEM_DEF(hijack)
 		var/datum/hive_status/hive
 		for(var/hivenumber in GLOB.hive_datum)
 			hive = GLOB.hive_datum[hivenumber]
-			if(!length(hive.totalXenos))
+			if(!length(hive.total_living_xenos))
 				continue
 
 			xeno_announcement(SPAN_XENOANNOUNCE("The talls may be attempting to take their ship down with them in Engineering, stop them!"), hive.hivenumber, XENO_HIJACK_ANNOUNCE)

code/datums/event_info_text.dm

@@ -49,7 +49,7 @@
 		for(var/hivenumber in GLOB.hive_datum)
 			hive = GLOB.hive_datum[hivenumber]
 			if(hive.name == faction)
-				for(var/mob/M in hive.totalXenos)
+				for(var/mob/M in hive.total_living_xenos)
 					show_player_event_info(M)
 				return
 

code/datums/medal_awards.dm

@@ -288,11 +288,9 @@ GLOBAL_LIST_INIT(xeno_medals, list(XENO_SLAUGHTER_MEDAL, XENO_RESILIENCE_MEDAL,
 	var/list/possible_recipients = list()
 	var/list/recipient_castes = list()
 	var/list/recipient_mobs = list()
-	for(var/mob/living/carbon/xenomorph/xeno in hive.totalXenos)
+	for(var/mob/living/carbon/xenomorph/xeno in hive.total_living_xenos_advanced)
 		if (xeno.persistent_ckey == usr.persistent_ckey) // Don't award self
 			continue
-		if (xeno.tier == 0) // Don't award larva or facehuggers
-			continue
 		if (!as_admin && istype(xeno.caste, /datum/caste_datum/queen)) // Don't award queens unless admin
 			continue
 		var/recipient_name = xeno.real_name
@@ -338,7 +336,7 @@ GLOBAL_LIST_INIT(xeno_medals, list(XENO_SLAUGHTER_MEDAL, XENO_RESILIENCE_MEDAL,
 	var/recipient_ckey = recipient_mob.persistent_ckey
 	var/posthumous = !isliving(recipient_mob) || recipient_mob.stat == DEAD
 	if(!as_admin) // Don't need to check for giver mob in admin mode
-		for(var/mob/mob in hive.totalXenos)
+		for(var/mob/mob in hive.total_living_xenos_advanced)
 			if(mob == usr)
 				// Giver: Increment their medals given stat
 				giver_mob = mob

code/game/gamemodes/cm_initialize.dm

@@ -505,7 +505,7 @@ Additional game mode variables.
 	var/last_active_hive = 0
 	for(var/hivenumber in GLOB.hive_datum)
 		hive = GLOB.hive_datum[hivenumber]
-		if(hive.totalXenos.len <= 0)
+		if(length(hive.total_living_xenos_advanced) <= 0)
 			continue
 		active_hives[hive.name] = hive.hivenumber
 		last_active_hive = hive.hivenumber
@@ -526,7 +526,7 @@ Additional game mode variables.
 	//We have our Hive picked, time to figure out what we can join via
 	var/list/available_facehugger_sources = list()
 
-	for(var/mob/living/carbon/xenomorph/carrier/carrier in hive.totalXenos)
+	for(var/mob/living/carbon/xenomorph/carrier/carrier in hive.total_living_xenos_advanced)
 		if(carrier.huggers_cur > carrier.huggers_reserved)
 			var/area_name = get_area_name(carrier)
 			var/descriptive_name = "[carrier.name] in [area_name]"
@@ -571,7 +571,7 @@ Additional game mode variables.
 	var/last_active_hive = 0
 	for(var/hivenumber in GLOB.hive_datum)
 		hive = GLOB.hive_datum[hivenumber]
-		if(hive.totalXenos.len <= 0)
+		if(length(hive.total_living_xenos_advanced) <= 0)
 			continue
 		active_hives[hive.name] = hive.hivenumber
 		last_active_hive = hive.hivenumber

code/game/gamemodes/cm_process.dm

@@ -1,5 +1,7 @@
 
 #define QUEEN_DEATH_COUNTDOWN  10 MINUTES //10 minutes. Can be changed into a variable if it needs to be manipulated later.
+/// Marine major if we have this many or less xenos after the queen timer runs out; also used for warning last xenos
+#define XENO_HIVE_COLLAPSE_THRESHOLD	3
 
 #define MODE_INFESTATION_X_MAJOR "Xenomorph Major Victory"
 #define MODE_INFESTATION_M_MAJOR "Marine Major Victory"

code/game/gamemodes/colonialmarines/colonialmarines.dm

@@ -332,7 +332,7 @@
 			if(HS.living_xeno_queen && !should_block_game_interaction(HS.living_xeno_queen.loc))
 				//Some Queen is alive, we shouldn't end the game yet
 				return
-		if (HS.totalXenos <= 3)
+		if(length(HS.total_living_xenos_advanced) <= XENO_HIVE_COLLAPSE_THRESHOLD)
 			round_finished = MODE_INFESTATION_M_MAJOR
 		else
 			round_finished = MODE_INFESTATION_M_MINOR

code/game/machinery/nuclearbomb.dm

@@ -345,7 +345,7 @@ GLOBAL_VAR_INIT(bomb_set, FALSE)
 		var/datum/hive_status/hive
 		for(var/hivenumber in GLOB.hive_datum)
 			hive = GLOB.hive_datum[hivenumber]
-			if(!hive.totalXenos.len)
+			if(!length(hive.total_living_xenos))
 				return
 			xeno_announcement(SPAN_XENOANNOUNCE(warning), hive.hivenumber, XENO_GENERAL_ANNOUNCE)
 		return
@@ -358,7 +358,7 @@ GLOBAL_VAR_INIT(bomb_set, FALSE)
 		yautja_announcement(SPAN_YAUTJABOLDBIG("WARNING!<br>A human purification device has been detected. You have approximately [t_left] to abandon the hunting grounds before it activates."))
 		for(var/hivenumber in GLOB.hive_datum)
 			hive = GLOB.hive_datum[hivenumber]
-			if(!hive.totalXenos.len)
+			if(!length(hive.total_living_xenos))
 				continue
 			xeno_announcement(SPAN_XENOANNOUNCE("The tallhosts have deployed a hive killer at [get_area_name(loc)]! Stop it at all costs!"), hive.hivenumber, XENO_GENERAL_ANNOUNCE)
 	else
@@ -367,7 +367,7 @@ GLOBAL_VAR_INIT(bomb_set, FALSE)
 		yautja_announcement(SPAN_YAUTJABOLDBIG("WARNING!<br>The human purification device's signature has disappeared."))
 		for(var/hivenumber in GLOB.hive_datum)
 			hive = GLOB.hive_datum[hivenumber]
-			if(!hive.totalXenos.len)
+			if(!length(hive.total_living_xenos))
 				continue
 			xeno_announcement(SPAN_XENOANNOUNCE("The hive killer has been disabled! Rejoice!"), hive.hivenumber, XENO_GENERAL_ANNOUNCE)
 	return
@@ -574,7 +574,7 @@ GLOBAL_VAR_INIT(bomb_set, FALSE)
 			var/datum/hive_status/hive
 			for(var/hivenumber in GLOB.hive_datum)
 				hive = GLOB.hive_datum[hivenumber]
-				if(!length(hive.totalXenos))
+				if(!length(hive.total_living_xenos))
 					return
 				xeno_announcement(SPAN_XENOANNOUNCE("We get a sense of impending doom... the hive killer is ready to be activated."), hive.hivenumber, XENO_GENERAL_ANNOUNCE)
 			return
@@ -594,7 +594,7 @@ GLOBAL_VAR_INIT(bomb_set, FALSE)
 		var/datum/hive_status/hive
 		for(var/hivenumber in GLOB.hive_datum)
 			hive = GLOB.hive_datum[hivenumber]
-			if(!hive.totalXenos.len)
+			if(!length(hive.total_living_xenos))
 				return
 			xeno_announcement(SPAN_XENOANNOUNCE(warning), hive.hivenumber, XENO_GENERAL_ANNOUNCE)
 		return
@@ -607,7 +607,7 @@ GLOBAL_VAR_INIT(bomb_set, FALSE)
 		yautja_announcement(SPAN_YAUTJABOLDBIG("WARNING!<br>A human purification device has been detected. You have approximately [time_left] before it finishes its initial phase."))
 		for(var/hivenumber in GLOB.hive_datum)
 			hive = GLOB.hive_datum[hivenumber]
-			if(!length(hive.totalXenos))
+			if(!length(hive.total_living_xenos))
 				continue
 			xeno_announcement(SPAN_XENOANNOUNCE("The tallhosts have started the initial phase of a hive killer at [get_area_name(loc)]! Destroy their communications relays!"), hive.hivenumber, XENO_GENERAL_ANNOUNCE)
 		return
@@ -617,7 +617,7 @@ GLOBAL_VAR_INIT(bomb_set, FALSE)
 	yautja_announcement(SPAN_YAUTJABOLDBIG("WARNING!<br>The human purification device's signature has disappeared."))
 	for(var/hivenumber in GLOB.hive_datum)
 		hive = GLOB.hive_datum[hivenumber]
-		if(!length(hive.totalXenos))
+		if(!length(hive.total_living_xenos))
 			continue
 		xeno_announcement(SPAN_XENOANNOUNCE("The hive killer's initial phase has been halted! Rejoice!"), hive.hivenumber, XENO_GENERAL_ANNOUNCE)
 

code/modules/admin/tabs/event_tab.dm

@@ -438,7 +438,7 @@
 	var/datum/hive_status/hive
 	for(var/hivenumber in GLOB.hive_datum)
 		hive = GLOB.hive_datum[hivenumber]
-		if(hive.totalXenos.len > 0 || hive.total_dead_xenos.len > 0)
+		if(length(hive.total_living_xenos_advanced) > 0 || hive.total_dead_xenos.len > 0)
 			hives += list("[hive.name]" = hive.hivenumber)
 			last_hive_checked = hive
 

code/modules/admin/topic/topic_teleports.dm

@@ -136,7 +136,7 @@
 					to_chat(owner, SPAN_ALERT("Hive choice error. Aborting."))
 					return
 				var/datum/hive_status/Hive = GLOB.hive_datum[hives[faction]]
-				var/list/targets = Hive.totalXenos
+				var/list/targets = Hive.total_living_xenos
 				for(var/mob/living/carbon/xenomorph/X in targets)
 					var/area/AR = get_area(X)
 					if(X.stat == DEAD || AR.statistic_exempt)

code/modules/cm_aliens/XenoStructures.dm

@@ -295,7 +295,7 @@
 
 	X.hive.mark_ui.update_all_data()
 
-	for(var/mob/living/carbon/xenomorph/XX in X.hive.totalXenos)
+	for(var/mob/living/carbon/xenomorph/XX in X.hive.total_living_xenos)
 		XX.hud_set_marks() //this should be a hud thing, but that code is too confusing so I am doing it here
 
 	addtimer(CALLBACK(src, PROC_REF(check_for_weeds)), 30 SECONDS, TIMER_UNIQUE)
@@ -306,7 +306,7 @@
 	if(builder_hive)
 		builder_hive.resin_marks -= src
 
-		for(var/mob/living/carbon/xenomorph/XX in builder_hive.totalXenos)
+		for(var/mob/living/carbon/xenomorph/XX in builder_hive.total_living_xenos)
 			XX.built_structures -= src
 			if(!XX.client)
 				continue
@@ -329,7 +329,7 @@
 	. = ..()
 	var/mob/living/carbon/xenomorph/xeno_createdby
 	var/datum/hive_status/builder_hive = GLOB.hive_datum[hivenumber]
-	for(var/mob/living/carbon/xenomorph/X in builder_hive.totalXenos)
+	for(var/mob/living/carbon/xenomorph/X in builder_hive.total_living_xenos)
 		if(X.nicknumber == createdby)
 			xeno_createdby = X
 	if(isxeno(user) || isobserver(user))

code/modules/cm_aliens/structures/special/pylon_core.dm

@@ -63,7 +63,7 @@
 	. = ..()
 
 	var/lesser_count = 0
-	for(var/mob/living/carbon/xenomorph/lesser_drone/lesser in linked_hive.totalXenos)
+	for(var/mob/living/carbon/xenomorph/lesser_drone/lesser in linked_hive.total_living_xenos)
 		lesser_count++
 
 	. += "Currently holding [SPAN_NOTICE("[Floor(lesser_drone_spawns)]")]/[SPAN_NOTICE("[lesser_drone_spawn_limit]")] lesser drones."
@@ -152,7 +152,7 @@
 
 		for(var/hivenumber in GLOB.hive_datum)
 			var/datum/hive_status/checked_hive = GLOB.hive_datum[hivenumber]
-			if(!length(checked_hive.totalXenos))
+			if(!length(checked_hive.total_living_xenos))
 				continue
 
 			if(checked_hive == linked_hive)
@@ -168,7 +168,7 @@
 
 	for(var/hivenumber in GLOB.hive_datum)
 		var/datum/hive_status/checked_hive = GLOB.hive_datum[hivenumber]
-		if(!length(checked_hive.totalXenos))
+		if(!length(checked_hive.total_living_xenos))
 			continue
 
 		if(checked_hive == linked_hive)
@@ -191,7 +191,7 @@
 	if(linked_hive.check_if_hit_larva_from_pylon_limit())
 		return
 
-	linked_hive.partial_larva += (linked_hive.get_real_total_xeno_count() + linked_hive.stored_larva) * LARVA_ADDITION_MULTIPLIER
+	linked_hive.partial_larva += (length(linked_hive.total_living_xenos_advanced) + linked_hive.stored_larva) * LARVA_ADDITION_MULTIPLIER
 	linked_hive.convert_partial_larva_to_full_larva()
 	linked_hive.hive_ui.update_burrowed_larva()
 

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

@@ -865,7 +865,7 @@ This is the proc mobs get to turn into a ghost. Forked from ghostize due to comp
 	var/datum/hive_status/hive
 	for(var/hivenumber in GLOB.hive_datum)
 		hive = GLOB.hive_datum[hivenumber]
-		if(hive.totalXenos.len > 0)
+		if(length(hive.total_living_xenos))
 			hives += list("[hive.name]" = hive.hivenumber)
 			last_hive_checked = hive
 
@@ -893,7 +893,7 @@ This is the proc mobs get to turn into a ghost. Forked from ghostize due to comp
 	set category = "Ghost.View"
 
 	var/datum/hive_status/hive = GLOB.hive_datum[XENO_HIVE_NORMAL]
-	if(!hive || !length(hive.totalXenos))
+	if(!hive || !length(hive.total_living_xenos))
 		to_chat(src, SPAN_ALERT("There seems to be no living normal hive at the moment"))
 		return
 

code/modules/mob/living/carbon/human/death.dm

@@ -87,7 +87,7 @@
 				break
 			last_living_human = cur_human
 
-		if(!see_humans_on_tacmap && shipside_humans_count < (main_hive.get_real_total_xeno_count() * HIJACK_RATIO_FOR_TACMAP))
+		if(!see_humans_on_tacmap && shipside_humans_count < (length(main_hive.total_living_xenos_advanced) * HIJACK_RATIO_FOR_TACMAP))
 			xeno_announcement("There is only a handful of tallhosts left, they are now visible on our hive mind map.", XENO_HIVE_NORMAL, SPAN_ANNOUNCEMENT_HEADER_BLUE("[QUEEN_MOTHER_ANNOUNCE]"))
 			main_hive.see_humans_on_tacmap = TRUE
 		if(last_living_human && shipside_humans_count <= 1 && (GLOB.last_qm_callout + 2 MINUTES) < world.time)

code/modules/mob/living/carbon/xenomorph/Abilities.dm

@@ -85,7 +85,7 @@
 		tunnelobj.tunnel_desc = "[msg]"
 
 	if(X.hive.living_xeno_queen || X.hive.allow_no_queen_actions)
-		for(var/mob/living/carbon/xenomorph/target_for_message as anything in X.hive.totalXenos)
+		for(var/mob/living/carbon/xenomorph/target_for_message as anything in X.hive.total_living_xenos)
 			var/overwatch_target = XENO_OVERWATCH_TARGET_HREF
 			var/overwatch_src = XENO_OVERWATCH_SRC_HREF
 			to_chat(target_for_message, SPAN_XENOANNOUNCE("Hive: A new tunnel[description ? " ([description])" : ""] has been created by [X] (<a href='byond://?src=\ref[target_for_message];[overwatch_target]=\ref[X];[overwatch_src]=\ref[target_for_message]'>watch</a>) at <b>[get_area_name(tunnelobj)]</b>."))

code/modules/mob/living/carbon/xenomorph/Evolution.dm

@@ -391,15 +391,12 @@
 				used_tier_3_slots -= min(slots_used, slots_free)
 
 	var/burrowed_factor = min(hive.stored_larva, sqrt(4*hive.stored_larva))
-	var/totalXenos = round(burrowed_factor)
-	for(var/mob/living/carbon/xenomorph/xeno as anything in hive.totalXenos)
-		if(xeno.counts_for_slots)
-			totalXenos++
+	var/evolution_threshold = length(hive.total_living_xenos_advanced) + round(burrowed_factor)
 
-	if(tier == 1 && (((used_tier_2_slots + used_tier_3_slots) / totalXenos) * hive.tier_slot_multiplier) >= 0.5 && castepick != XENO_CASTE_QUEEN)
+	if(tier == 1 && (((used_tier_2_slots + used_tier_3_slots) / evolution_threshold) * hive.tier_slot_multiplier) >= 0.5 && castepick != XENO_CASTE_QUEEN)
 		to_chat(src, SPAN_WARNING("The hive cannot support another Tier 2, wait for either more aliens to be born or someone to die."))
 		return FALSE
-	else if(tier == 2 && ((used_tier_3_slots / totalXenos) * hive.tier_slot_multiplier) >= 0.20 && castepick != XENO_CASTE_QUEEN)
+	else if(tier == 2 && ((used_tier_3_slots / evolution_threshold) * hive.tier_slot_multiplier) >= 0.20 && castepick != XENO_CASTE_QUEEN)
 		to_chat(src, SPAN_WARNING("The hive cannot support another Tier 3, wait for either more aliens to be born or someone to die."))
 		return FALSE
 	else if(hive.allow_queen_evolve && !hive.living_xeno_queen && potential_queens == 1 && islarva(src) && castepick != XENO_CASTE_DRONE)

code/modules/mob/living/carbon/xenomorph/Powers.dm

@@ -206,7 +206,7 @@
 	if(hive.living_xeno_queen)
 		var/current_area_name = get_area_name(target_turf)
 
-		for(var/mob/living/carbon/xenomorph/X in hive.totalXenos)
+		for(var/mob/living/carbon/xenomorph/X in hive.total_living_xenos)
 			to_chat(X, SPAN_XENOANNOUNCE("[src.name] has declared: [NM.mark_meaning.desc] in [sanitize_area(current_area_name)]! (<a href='?src=\ref[X];overwatch=1;target=\ref[NM]'>Watch</a>) (<a href='?src=\ref[X];track=1;target=\ref[NM]'>Track</a>)"))
 			//this is killing the tgui chat and I dont know why
 	return TRUE

code/modules/mob/living/carbon/xenomorph/Xenomorph.dm

@@ -97,7 +97,6 @@
 	var/death_fontsize = 3
 
 	var/small_explosives_stun = TRUE // Have to put this here, otherwise it can't be strain specific
-	var/counts_for_slots = TRUE
 	var/counts_for_roundend = TRUE
 	var/refunds_larva_if_banished = TRUE
 	var/can_hivemind_speak = TRUE

code/modules/mob/living/carbon/xenomorph/abilities/queen/queen_powers.dm

@@ -308,15 +308,15 @@
 		to_chat(usr, SPAN_XENOWARNING("You must give some time for larva to spawn before sacrificing them. Please wait another [round((SSticker.mode.round_time_lobby + SHUTTLE_TIME_LOCK - world.time) / 600)] minutes."))
 		return
 
-	var/choice = tgui_input_list(user_xeno, "Choose a xenomorph to give evolution points for a burrowed larva:", "Give Evolution Points", user_xeno.hive.totalXenos, theme="hive_status")
+	var/choice = tgui_input_list(user_xeno, "Choose a xenomorph to give evolution points for a burrowed larva:", "Give Evolution Points", user_xeno.hive.total_living_xenos_advanced, theme="hive_status")
 
 	if(!choice)
 		return
 	var/evo_points_per_larva = 250
 	var/required_larva = 1
 	var/mob/living/carbon/xenomorph/target_xeno
 
-	for(var/mob/living/carbon/xenomorph/xeno in user_xeno.hive.totalXenos)
+	for(var/mob/living/carbon/xenomorph/xeno in user_xeno.hive.total_living_xenos_advanced)
 		if(html_encode(xeno.name) == html_encode(choice))
 			target_xeno = xeno
 			break
@@ -397,14 +397,14 @@
 	if(!user_xeno.check_plasma(plasma_cost_banish))
 		return
 
-	var/choice = tgui_input_list(user_xeno, "Choose a xenomorph to banish:", "Banish", user_xeno.hive.totalXenos, theme="hive_status")
+	var/choice = tgui_input_list(user_xeno, "Choose a xenomorph to banish:", "Banish", user_xeno.hive.total_living_xenos, theme="hive_status")
 
 	if(!choice)
 		return
 
 	var/mob/living/carbon/xenomorph/target_xeno
 
-	for(var/mob/living/carbon/xenomorph/xeno in user_xeno.hive.totalXenos)
+	for(var/mob/living/carbon/xenomorph/xeno in user_xeno.hive.total_living_xenos)
 		if(html_encode(xeno.name) == html_encode(choice))
 			target_xeno = xeno
 			break
@@ -483,7 +483,7 @@
 	var/banished_living = FALSE
 	var/mob/living/carbon/xenomorph/target_xeno
 
-	for(var/mob/living/carbon/xenomorph/xeno in user_xeno.hive.totalXenos)
+	for(var/mob/living/carbon/xenomorph/xeno in user_xeno.hive.total_living_xenos)
 		if(xeno.ckey == banished_ckey)
 			target_xeno = xeno
 			banished_living = TRUE
@@ -627,7 +627,7 @@
 	to_chat(Q, SPAN_XENONOTICE("You rally the hive to the queen beacon!"))
 	LAZYCLEARLIST(transported_xenos)
 	RegisterSignal(SSdcs, COMSIG_GLOB_XENO_SPAWN, PROC_REF(tunnel_xeno))
-	for(var/xeno in hive.totalXenos)
+	for(var/xeno in hive.total_living_xenos)
 		if(xeno == Q)
 			continue
 		tunnel_xeno(src, xeno)

code/modules/mob/living/carbon/xenomorph/castes/Facehugger.dm

@@ -40,7 +40,6 @@
 	life_value = 0
 	default_honor_value = 0
 	show_only_numbers = TRUE
-	counts_for_slots = FALSE
 	counts_for_roundend = FALSE
 	refunds_larva_if_banished = FALSE
 	can_hivemind_speak = FALSE

code/modules/mob/living/carbon/xenomorph/castes/Queen.dm

@@ -496,7 +496,7 @@
 
 	if(hive && hive.living_xeno_queen == src)
 		var/mob/living/carbon/xenomorph/queen/next_queen = null
-		for(var/mob/living/carbon/xenomorph/queen/queen in hive.totalXenos)
+		for(var/mob/living/carbon/xenomorph/queen/queen in hive.total_living_xenos_advanced)
 			if(!should_block_game_interaction(queen) && queen != src && !QDELETED(queen))
 				next_queen = queen
 				break
@@ -778,7 +778,7 @@
 
 		// Reset the banished ckey list
 		if(length(hive.banished_ckeys))
-			for(var/mob/living/carbon/xenomorph/target_xeno in hive.totalXenos)
+			for(var/mob/living/carbon/xenomorph/target_xeno in hive.total_living_xenos)
 				if(!target_xeno.ckey)
 					continue
 				for(var/mob_name in hive.banished_ckeys)

code/modules/mob/living/carbon/xenomorph/castes/lesser_drone.dm

@@ -50,7 +50,6 @@
 	life_value = 0
 	default_honor_value = 0
 	show_only_numbers = TRUE
-	counts_for_slots = FALSE
 	counts_for_roundend = FALSE
 	refunds_larva_if_banished = FALSE
 	crit_health = 0