[PORT] Changeling flammability stuff (#2390)

* Changelings are (once again) weak to fire (#83953)

Being on fire will make the ling unable to use any ability that isn't
for getting out of danger or reviving themselves (Adrenals, Fakedeath,
Strained Muscles, Last Resort, Shriek, Defib Grasp and Biodegrade). And
no, there is no armblade nerf, it is fine as it is.

Changelings are really busted, as they are effectively immortal until
completely removed (which means finding a cremator/gibber/shuttle, and
by the time you get there most of the time they are already ready to
revive) which really limits counterplay. Goof and Jac's approach to
nerfing lings was a bit too much since it nerfed the armblade massively
as well, but I found that their approach about lings being weak to fire
was really good counterplay for lings (besides BZ (who even uses it?)).
We shouldnt just leave the guys that are almost immortal and spawn
multiple in a round with one single counterplay that relies on a
knowledge check.

:cl:
balance: Certain changeling abilities won't work while on fire.
/:cl:

* added flammability

---------

Co-authored-by: JackEnoff <[email protected]>
Co-authored-by: KnighTheThrasher <[email protected]>

code/modules/antagonists/changeling/changeling_power.dm

@@ -32,6 +32,8 @@
 	var/ignores_fakedeath = FALSE
 	/// used by a few powers that toggle
 	var/active = FALSE
+	/// Does this ability stop working if you are burning?
+	var/disabled_by_fire = TRUE
 
 /*
 changeling code now relies on on_purchase to grant powers.
@@ -61,6 +63,9 @@ the same goes for Remove(). if you override Remove(), call parent or else your p
 /datum/action/changeling/proc/try_to_sting(mob/living/user, mob/living/target)
 	if(!can_sting(user, target))
 		return FALSE
+	if(disabled_by_fire && user.fire_stacks && user.on_fire)
+		user.balloon_alert(user, "on fire!")
+		return FALSE
 	var/datum/antagonist/changeling/changeling = user.mind.has_antag_datum(/datum/antagonist/changeling)
 	if(sting_action(user, target))
 		sting_feedback(user, target)

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

@@ -7,6 +7,7 @@
 	dna_cost = 2
 	req_human = TRUE
 	req_stat = UNCONSCIOUS
+	disabled_by_fire = FALSE
 
 //Recover from stuns.
 /datum/action/changeling/adrenaline/sting_action(mob/living/user)

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

@@ -6,6 +6,7 @@
 	chemical_cost = 30 //High cost to prevent spam
 	dna_cost = 2
 	req_human = TRUE
+	disabled_by_fire = FALSE
 
 /datum/action/changeling/biodegrade/sting_action(mob/living/carbon/human/user)
 	var/used = FALSE // only one form of shackles removed per use

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

@@ -6,6 +6,7 @@
 		while we are dead or in stasis. Will also stun cyborgs momentarily."
 	owner_has_control = FALSE
 	dna_cost = 0
+	disabled_by_fire = FALSE
 
 	/// Flags to pass to fully heal when we get zapped
 	var/heal_flags = HEAL_DAMAGE|HEAL_BODY|HEAL_STATUS|HEAL_CC_STATUS

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

@@ -7,6 +7,7 @@
 	req_dna = 1
 	req_stat = DEAD
 	ignores_fakedeath = TRUE
+	disabled_by_fire = FALSE
 
 	/// How long it takes for revival to ready upon entering stasis.
 	/// The changeling can opt to stay in fakedeath for longer, though.

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

@@ -6,6 +6,9 @@
 	chemical_cost = 20
 	dna_cost = 1
 	req_human = TRUE
+	req_stat = DEAD
+	ignores_fakedeath = TRUE
+	disabled_by_fire = FALSE
 
 /datum/action/changeling/headcrab/sting_action(mob/living/user)
 	set waitfor = FALSE

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

@@ -194,6 +194,7 @@
 	sharpness = SHARP_EDGED
 	wound_bonus = -20
 	bare_wound_bonus = 20
+	resistance_flags = FLAMMABLE //MONKESTATION ADDITION
 	var/can_drop = FALSE
 	var/fake = FALSE
 
@@ -288,6 +289,7 @@
 	throw_range = 0
 	throw_speed = 0
 	can_hold_up = FALSE
+	resistance_flags = FLAMMABLE //MONKESTATION ADDITION
 
 /obj/item/gun/magic/tentacle/Initialize(mapload, silent)
 	. = ..()
@@ -493,6 +495,7 @@
 	lefthand_file = 'icons/mob/inhands/antag/changeling_lefthand.dmi'
 	righthand_file = 'icons/mob/inhands/antag/changeling_righthand.dmi'
 	block_chance = 50
+	resistance_flags = FLAMMABLE //MONKESTATION ADDITION
 
 	var/remaining_uses //Set by the changeling ability.
 
@@ -542,6 +545,7 @@
 	flags_inv = HIDEJUMPSUIT
 	cold_protection = 0
 	heat_protection = 0
+	resistance_flags = FLAMMABLE //MONKESTATION ADDITION
 
 /datum/armor/armor_changeling
 	melee = 40
@@ -550,7 +554,7 @@
 	energy = 50
 	bomb = 10
 	bio = 10
-	fire = 90
+	/*fire = 90*/ //MONKESTATION REMOVAL
 	acid = 90
 
 /obj/item/clothing/suit/armor/changeling/Initialize(mapload)
@@ -567,6 +571,7 @@
 	item_flags = DROPDEL
 	armor_type = /datum/armor/helmet_changeling
 	flags_inv = HIDEEARS|HIDEHAIR|HIDEEYES|HIDEFACIALHAIR|HIDEFACE|HIDESNOUT
+	resistance_flags = FLAMMABLE //MONKESTATION ADDITION
 
 /datum/armor/helmet_changeling
 	melee = 40
@@ -575,7 +580,7 @@
 	energy = 50
 	bomb = 10
 	bio = 10
-	fire = 90
+	/*fire = 90*/ //MONKESTATION REMOVAL
 	acid = 90
 
 /obj/item/clothing/head/helmet/changeling/Initialize(mapload)

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

@@ -6,6 +6,7 @@
 	chemical_cost = 20
 	dna_cost = 1
 	req_human = TRUE
+	disabled_by_fire = FALSE
 
 //A flashy ability, good for crowd control and sowing chaos.
 /datum/action/changeling/resonant_shriek/sting_action(mob/user)
@@ -41,6 +42,7 @@
 	button_icon_state = "dissonant_shriek"
 	chemical_cost = 20
 	dna_cost = 1
+	disabled_by_fire = FALSE
 
 /datum/action/changeling/dissonant_shriek/sting_action(mob/user)
 	..()

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

@@ -11,6 +11,7 @@
 	req_human = TRUE
 	var/stacks = 0 //Increments every 5 seconds; damage increases over time
 	active = FALSE //Whether or not you are a hedgehog
+	disabled_by_fire = FALSE
 
 /datum/action/changeling/strained_muscles/sting_action(mob/living/carbon/user)
 	..()