Melee Stagger (#11443)

* combat refactoring

* i hate this

* mobility flags part 2 time xd

* whew

* stuff

* a

* ok

* changes

* Wew

* k

* add flags

* FUCKYOUVORE

* fixes

* typo

* no using this in hard stamcrit

* update icon

* woopsy

* . = ..()

* sigh

* Update living_combat.dm

* wew

* wups

* fix

* wack

* animation is now shorter

* linter save me

* i hate you

* k

* k

* k

* i hate you

* wrong button

* k

* ok

* bet

* bet

* bet

* Update item_attack.dm

* k

* Update code/modules/mob/living/living_combat.dm

Co-Authored-By: Ghom <42542238+Ghommie@users.noreply.github.com>

* Update code/modules/mob/living/living_combat.dm

Co-Authored-By: Ghom <42542238+Ghommie@users.noreply.github.com>

* Update code/modules/mob/living/living_combat.dm

Co-Authored-By: Ghom <42542238+Ghommie@users.noreply.github.com>

* early returns

* skreee

* agony

* k

* k

* k

* k

* wack

* compile

* wack

* fix

Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>

code/__DEFINES/combat.dm

@@ -82,6 +82,7 @@
 #define CANUNCONSCIOUS	(1<<2)
 #define CANPUSH			(1<<3)
 #define GODMODE			(1<<4)
+#define CANSTAGGER		(1<<5)
 
 //Health Defines
 #define HEALTH_THRESHOLD_CRIT 0

code/_onclick/item_attack.dm

@@ -50,7 +50,6 @@
 	user.changeNext_move(CLICK_CD_MELEE)
 	return I.attack(src, user)
 
-
 /obj/item/proc/attack(mob/living/M, mob/living/user)
 	if(SEND_SIGNAL(src, COMSIG_ITEM_ATTACK, M, user) & COMPONENT_ITEM_NO_ATTACK)
 		return
@@ -117,6 +116,7 @@
 	if(user != src && check_shields(I, totitemdamage, "the [I.name]", MELEE_ATTACK, I.armour_penetration))
 		return FALSE
 	send_item_attack_message(I, user)
+	I.do_stagger_action(src, user)
 	if(I.force)
 		apply_damage(totitemdamage, I.damtype) //CIT CHANGE - replaces I.force with totitemdamage
 		if(I.damtype == BRUTE && !HAS_TRAIT(src, TRAIT_NOMARROW))
@@ -166,5 +166,33 @@
 			playsound(src, 'sound/weapons/dink.ogg', 30, 1)
 	return 1
 
+/// How much stamina this takes to swing this is not for realism purposes hecc off.
 /obj/item/proc/getweight()
 	return total_mass || w_class * 1.25
+
+/// How long this staggers for. 0 and negatives supported.
+/obj/item/proc/melee_stagger_duration()
+	if(!isnull(stagger_force))
+		return stagger_force
+	/// totally not an untested, arbitrary equation.
+	return clamp((1.5 + (w_class/7.5)) * (force / 2), 0, 10 SECONDS)
+
+/obj/item/proc/do_stagger_action(mob/living/target, mob/living/user)
+	if(!CHECK_BITFIELD(target.status_flags, CANSTAGGER))
+		return FALSE
+	if(target.combat_flags & COMBAT_FLAG_SPRINT_ACTIVE)
+		target.do_staggered_animation()
+	var/duration = melee_stagger_duration()
+	if(!duration)		//0
+		return FALSE
+	else if(duration > 0)
+		target.Stagger(duration)
+	else				//negative
+		target.AdjustStaggered(duration)
+	return TRUE
+
+/mob/proc/do_staggered_animation()
+	set waitfor = FALSE
+	animate(src, pixel_x = -2, pixel_y = -2, time = 1, flags = ANIMATION_RELATIVE | ANIMATION_PARALLEL)
+	animate(pixel_x = 4, pixel_y = 4, time = 1, flags = ANIMATION_RELATIVE)
+	animate(pixel_x = -2, pixel_y = -2, time = 0.5, flags = ANIMATION_RELATIVE)

code/datums/status_effects/debuffs.dm

@@ -90,6 +90,7 @@
 /datum/status_effect/staggered
 	id = "staggered"
 	blocks_sprint = TRUE
+	alert_type = null
 
 /datum/status_effect/staggered/on_creation(mob/living/new_owner, set_duration)
 	if(isnum(set_duration))

code/game/objects/items.dm

@@ -34,7 +34,12 @@ GLOBAL_VAR_INIT(rpg_loot_items, FALSE)
 	var/usesound = null
 	var/throwhitsound = null
 	var/w_class = WEIGHT_CLASS_NORMAL
+
+	/// The amount of stamina it takes to swing an item in a normal melee attack do not lie to me and say it's for realism because it ain't. If null it will autocalculate from w_class.
 	var/total_mass //Total mass in arbitrary pound-like values. If there's no balance reasons for an item to have otherwise, this var should be the item's weight in pounds.
+	/// How long, in deciseconds, this staggers for, if null it will autocalculate from w_class and force. Unlike total mass this supports 0 and negatives.
+	var/stagger_force
+
 	var/slot_flags = 0		//This is used to determine on which slots an item can fit.
 	pass_flags = PASSTABLE
 	pressure_resistance = 4

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

@@ -97,6 +97,7 @@
 		affecting = bodyparts[1]
 	SEND_SIGNAL(I, COMSIG_ITEM_ATTACK_ZONE, src, user, affecting)
 	send_item_attack_message(I, user, affecting.name)
+	I.do_stagger_action(src, user)
 	if(I.force)
 		apply_damage(totitemdamage, I.damtype, affecting) //CIT CHANGE - replaces I.force with totitemdamage
 		if(I.damtype == BRUTE && affecting.status == BODYPART_ORGANIC)

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

@@ -121,7 +121,6 @@
 	// the attacked_by code varies among species
 	return dna.species.spec_attacked_by(I, user, affecting, a_intent, src)
 
-
 /mob/living/carbon/human/attack_hulk(mob/living/carbon/human/user, does_attack_animation = FALSE)
 	if(user.a_intent == INTENT_HARM)
 		. = ..(user, TRUE)

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

@@ -8,6 +8,7 @@
 	mob_biotypes = MOB_ORGANIC|MOB_HUMANOID
 	/// Enable stamina combat
 	combat_flags = COMBAT_FLAGS_DEFAULT
+	status_flags = CANSTUN|CANKNOCKDOWN|CANUNCONSCIOUS|CANPUSH|CANSTAGGER
 
 	//Hair colour and style
 	var/hair_color = "000"

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

@@ -1695,6 +1695,8 @@ GLOBAL_LIST_EMPTY(roundstart_race_names)
 
 	H.send_item_attack_message(I, user, hit_area)
 
+	I.do_stagger_action(H, user)
+
 	if(!I.force)
 		return 0 //item force is zero