Adds action buttons for spiders, refactors action code, nurse spiders can set a hereditary directive for their children to follow

code/modules/mob/living/carbon/alien/humanoid/alien_powers.dm

@@ -10,15 +10,15 @@ Doesn't work on other aliens/AI.*/
 	name = "Alien Power"
 	panel = "Alien"
 	var/plasma_cost = 0
-	var/check_turf = 0
-	var/has_action = 1
-	var/datum/action/spell_action/alien/action = null
-	var/action_icon = 'icons/mob/actions/actions_xeno.dmi'
-	var/action_icon_state = "spell_default"
-	var/action_background_icon_state = "bg_alien"
+	var/check_turf = FALSE
+	has_action = TRUE
+	datum/action/spell_action/alien/action
+	action_icon = 'icons/mob/actions/actions_xeno.dmi'
+	action_icon_state = "spell_default"
+	action_background_icon_state = "bg_alien"
 
-/obj/effect/proc_holder/alien/New()
-	..()
+/obj/effect/proc_holder/alien/Initialize()
+	. = ..()
 	action = new(src)
 
 /obj/effect/proc_holder/alien/Click()
@@ -30,15 +30,20 @@ Doesn't work on other aliens/AI.*/
 			user.adjustPlasma(-plasma_cost)
 	return 1
 
-/obj/effect/proc_holder/alien/proc/on_gain(mob/living/carbon/user)
+/obj/effect/proc_holder/alien/on_gain(mob/living/carbon/user)
 	return
 
-/obj/effect/proc_holder/alien/proc/on_lose(mob/living/carbon/user)
+/obj/effect/proc_holder/alien/on_lose(mob/living/carbon/user)
 	return
 
-/obj/effect/proc_holder/alien/proc/fire(mob/living/carbon/user)
+/obj/effect/proc_holder/alien/fire(mob/living/carbon/user)
 	return 1
 
+/obj/effect/proc_holder/alien/get_panel_text()
+	. = ..()
+	if(plasma_cost > 0)
+		return "[plasma_cost]"
+
 /obj/effect/proc_holder/alien/proc/cost_check(check_turf=0,mob/living/carbon/user,silent = 0)
 	if(user.stat)
 		if(!silent)
@@ -168,7 +173,6 @@ Doesn't work on other aliens/AI.*/
 	if(user.getPlasma() > A.plasma_cost && A.corrode(O))
 		user.adjustPlasma(-A.plasma_cost)
 
-
 /obj/effect/proc_holder/alien/neurotoxin
 	name = "Spit Neurotoxin"
 	desc = "Spits neurotoxin at someone, paralyzing them for a short time."
@@ -179,7 +183,7 @@ Doesn't work on other aliens/AI.*/
 	var/message
 	if(active)
 		message = "<span class='notice'>You empty your neurotoxin gland.</span>"
-		remove_ranged_ability(user,message)
+		remove_ranged_ability(message)
 	else
 		message = "<span class='notice'>You prepare your neurotoxin gland. <B>Left-click to fire at a target!</B></span>"
 		add_ranged_ability(user, message, TRUE)
@@ -193,7 +197,7 @@ Doesn't work on other aliens/AI.*/
 		return
 	var/p_cost = 50
 	if(!iscarbon(ranged_ability_user) || ranged_ability_user.lying || ranged_ability_user.stat)
-		remove_ranged_ability(ranged_ability_user)
+		remove_ranged_ability()
 		return
 
 	var/mob/living/carbon/user = ranged_ability_user
@@ -219,8 +223,7 @@ Doesn't work on other aliens/AI.*/
 	return TRUE
 
 /obj/effect/proc_holder/alien/neurotoxin/on_lose(mob/living/carbon/user)
-	if(user.ranged_ability == src)
-		user.ranged_ability = null
+	remove_ranged_ability()
 
 /obj/effect/proc_holder/alien/neurotoxin/add_ranged_ability(mob/living/user, msg)
 	..()
@@ -328,7 +331,3 @@ Doesn't work on other aliens/AI.*/
 		return 1
 
 	return 0
-
-
-/proc/cmp_abilities_cost(obj/effect/proc_holder/alien/a, obj/effect/proc_holder/alien/b)
-	return b.plasma_cost - a.plasma_cost

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

@@ -425,23 +425,6 @@
 			var/turf/target = get_turf(loc)
 			I.throw_at(target,I.throw_range,I.throw_speed,src)
 
-/mob/living/carbon/proc/AddAbility(obj/effect/proc_holder/alien/A)
-	abilities.Add(A)
-	A.on_gain(src)
-	if(A.has_action)
-		A.action.Grant(src)
-	sortInsert(abilities, /proc/cmp_abilities_cost, 0)
-
-/mob/living/carbon/proc/RemoveAbility(obj/effect/proc_holder/alien/A)
-	abilities.Remove(A)
-	A.on_lose(src)
-	if(A.action)
-		A.action.Remove(src)
-
-/mob/living/carbon/proc/add_abilities_to_panel()
-	for(var/obj/effect/proc_holder/alien/A in abilities)
-		statpanel("[A.panel]",A.plasma_cost > 0?"([A.plasma_cost])":"",A)
-
 /mob/living/carbon/Stat()
 	..()
 	if(statpanel("Status"))

code/modules/mob/living/carbon/carbon_defines.dm

@@ -35,7 +35,6 @@
 	has_limbs = 1
 	var/obj/item/reagent_containers/food/snacks/meat/slab/type_of_meat = /obj/item/reagent_containers/food/snacks/meat/slab
 
-	var/list/obj/effect/proc_holder/alien/abilities = list()
 	var/gib_type = /obj/effect/decal/cleanable/blood/gibs
 
 	var/rotate_on_lying = 1

code/modules/mob/living/carbon/life.dm

@@ -412,8 +412,9 @@
 			liver_failure()
 		else
 			liver.failing = FALSE
-
-	if(((!(NOLIVER in dna.species.species_traits)) && (!liver)))
+	else
+		if((dna && dna.species && (NOLIVER in dna.species.species_traits)))
+			return
 		liver_failure()
 
 /mob/living/carbon/proc/undergoing_liver_failure()