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

code/modules/spells/spell.dm

@@ -8,6 +8,28 @@
 	var/ranged_mousepointer
 	var/mob/living/ranged_ability_user
 	var/ranged_clickcd_override = -1
+	var/has_action = TRUE
+	var/datum/action/spell_action/action = null
+	var/action_icon = 'icons/mob/actions/actions_spells.dmi'
+	var/action_icon_state = "spell_default"
+	var/action_background_icon_state = "bg_spell"
+
+/obj/effect/proc_holder/Initialize()
+	. = ..()
+	if(has_action)
+		action = new(src)
+
+/obj/effect/proc_holder/proc/on_gain(mob/living/user)
+	return
+
+/obj/effect/proc_holder/proc/on_lose(mob/living/user)
+	return
+
+/obj/effect/proc_holder/proc/fire(mob/living/user)
+	return TRUE
+
+/obj/effect/proc_holder/proc/get_panel_text()
+	return ""
 
 GLOBAL_LIST_INIT(spells, typesof(/obj/effect/proc_holder/spell)) //needed for the badmin verb for now
 
@@ -118,10 +140,10 @@ GLOBAL_LIST_INIT(spells, typesof(/obj/effect/proc_holder/spell)) //needed for th
 	var/critfailchance = 0
 	var/centcom_cancast = 1 //Whether or not the spell should be allowed on z2
 
-	var/action_icon = 'icons/mob/actions/actions_spells.dmi'
-	var/action_icon_state = "spell_default"
-	var/action_background_icon_state = "bg_spell"
-	var/datum/action/spell_action/action
+	action_icon = 'icons/mob/actions/actions_spells.dmi'
+	action_icon_state = "spell_default"
+	action_background_icon_state = "bg_spell"
+	datum/action/spell_action/spell/action
 
 /obj/effect/proc_holder/spell/proc/cast_check(skipcharge = 0,mob/user = usr) //checks if the spell can be cast based on its settings; skipcharge is used when an additional cast_check is called inside the spell