Reworks last resort. Reverts #23992 (#24389)

* Reworks last resort. Reverts #23992

* forgot to push these

* projectiles no longer pass over headslugs

code/modules/antagonists/changeling/changeling_power.dm

@@ -83,9 +83,6 @@
 	if(HAS_TRAIT(user, TRAIT_FAKEDEATH) && !bypass_fake_death)
 		to_chat(user, "<span class='warning'>We are incapacitated.</span>")
 		return FALSE
-	if(!cling.can_use_powers)
-		to_chat(owner, "<span class='warning'>Our cells are repairing themselves, we are unable to use our powers!</span>")
-		return FALSE
 	return TRUE
 
 // Transform the target to the chosen dna. Used in transform.dm and tiny_prick.dm (handy for changes since it's the same thing done twice)

code/modules/antagonists/changeling/datum_changeling.dm

@@ -48,10 +48,6 @@
 	var/datum/action/changeling/sting/chosen_sting
 	/// If the changeling is in the process of regenerating from their fake death.
 	var/regenerating = FALSE
-	/// Did changeling use headslug?
-	var/headslugged = FALSE
-	/// Can you use abilities due to a recent revival?
-	var/can_use_powers = TRUE
 	blurb_text_color = COLOR_PURPLE
 	blurb_text_outline_width = 1
 

code/modules/antagonists/changeling/powers/absorb.dm

@@ -86,10 +86,6 @@
 			target_cling.absorbed_dna.len = 1
 			target_cling.absorbed_count = 0
 
-		if(cling.headslugged)
-			cling.headslugged = FALSE
-			to_chat(user, "<span class='boldnotice'>By absorbing [target], we are once again strong enough to turn into a headslug.</span>")
-
 	cling.chem_charges = min(cling.chem_charges + 10, cling.chem_storage)
 
 	cling.is_absorbing = FALSE

code/modules/antagonists/changeling/powers/become_headslug.dm

@@ -1,24 +1,33 @@
 /datum/action/changeling/headslug
 	name = "Last Resort"
-	desc = "We sacrifice our current body in a moment of need, placing us in control of a vessel that can plant our likeness in a new host. Costs 20 chemicals. We will need to absorb someone to use this ability again."
-	helptext = "We will be placed in control of a small, fragile creature. We may attack a corpse like this to plant an egg which will slowly mature into a new form for us. This ability is available only once per absorption."
+	desc = "We sacrifice our current body in a moment of need, placing us in control of a vessel that can plant our likeness in a new host. Costs 20 chemicals."
+	helptext = "We will be placed in control of a small, fragile creature. We may attack a corpse like this to plant an egg which will slowly mature into a new form for us."
 	button_icon_state = "last_resort"
 	chemical_cost = 20
+	dna_cost = 2
 	req_human = TRUE
 	req_stat = DEAD
 	bypass_fake_death = TRUE
-	power_type = CHANGELING_INNATE_POWER
+	power_type = CHANGELING_PURCHASABLE_POWER
+	category = /datum/changeling_power_category/defence
 
 /datum/action/changeling/headslug/try_to_sting(mob/user, mob/target)
-	if(cling.headslugged)
-		to_chat(user, "<span class='notice'>We need to absorb a humanoid to headslug again.</span>")
-		return
 	if(tgui_alert(user, "Are you sure you wish to do this? This action cannot be undone.", "Sting", list("Yes", "No")) != "Yes")
 		return
-	cling.headslugged = TRUE
 	..()
 
-/datum/action/changeling/headslug/sting_action(mob/user)
+/datum/action/changeling/headslug/sting_action(mob/living/user)
+	user.Weaken(30 SECONDS)
+	user.do_jitter_animation(1000, -1) // jitter until they are gibbed
+	user.visible_message("<span class='danger'>A loud crack erupts from [user], followed by a hiss.</span>")
+	playsound(get_turf(user), "bonebreak", 75, TRUE)
+	playsound(get_turf(user), 'sound/machines/hiss.ogg', 75, TRUE)
+	addtimer(CALLBACK(src, PROC_REF(become_headslug), user), 5 SECONDS)
+	var/matrix/M = user.transform
+	M.Scale(1.8, 1.2)
+	animate(user, time = 5 SECONDS, transform = M, easing = SINE_EASING)
+
+/datum/action/changeling/headslug/proc/become_headslug(mob/user)
 	var/datum/mind/M = user.mind
 	var/list/organs = user.get_organs_zone("head", 1)
 

code/modules/antagonists/changeling/powers/revive.dm

@@ -11,10 +11,6 @@
 	if(HAS_TRAIT(user, TRAIT_UNREVIVABLE))
 		to_chat(user, "<span class='notice'>Something is preventing us from regenerating, we will need to revive at another point.</span>")
 		return FALSE
-
-	cling.can_use_powers = FALSE
-	addtimer(VARSET_CALLBACK(cling, can_use_powers, TRUE), 10 SECONDS)
-
 	REMOVE_TRAIT(user, TRAIT_FAKEDEATH, CHANGELING_TRAIT)
 	for(var/obj/item/grab/G in user.grabbed_by)
 		var/mob/living/carbon/M = G.assailant

code/modules/mob/living/simple_animal/hostile/headslug.dm

@@ -1,5 +1,5 @@
-#define EGG_INCUBATION_DEAD_CYCLE 60
-#define EGG_INCUBATION_LIVING_CYCLE 120
+#define EGG_INCUBATION_DEAD_CYCLE 120
+#define EGG_INCUBATION_LIVING_CYCLE 200
 /mob/living/simple_animal/hostile/headslug
 	name = "headslug"
 	desc = "Absolutely not de-beaked or harmless. Keep away from corpses."
@@ -59,6 +59,9 @@
 	to_chat(src, "<span class='userdanger'>With our egg laid, our death approaches rapidly...</span>")
 	addtimer(CALLBACK(src, PROC_REF(death)), 25 SECONDS)
 
+/mob/living/simple_animal/hostile/headslug/projectile_hit_check(obj/item/projectile/P)
+	return (stat || FALSE)
+	
 /obj/item/organ/internal/body_egg/changeling_egg
 	name = "changeling egg"
 	desc = "Twitching and disgusting."